diff --git a/src/vmath/swizzle.nim b/src/vmath/swizzle.nim
index 787f77a..82cd772 100644
--- a/src/vmath/swizzle.nim
+++ b/src/vmath/swizzle.nim
@@ -25,5055 +25,6063 @@ template xx*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[0], a2[0])
 func `xx=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[0] = b.x; a[0] = b.y
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y
 template xy*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[0], a2[1])
 func `xy=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[0] = b.x; a[1] = b.y
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y
 template xz*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[0], a2[2])
 func `xz=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[0] = b.x; a[2] = b.y
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y
 template xw*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[0], a2[3])
 func `xw=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[0] = b.x; a[3] = b.y
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y
 template yx*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[1], a2[0])
 func `yx=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[1] = b.x; a[0] = b.y
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y
 template yy*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[1], a2[1])
 func `yy=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[1] = b.x; a[1] = b.y
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y
 template yz*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[1], a2[2])
 func `yz=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[1] = b.x; a[2] = b.y
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y
 template yw*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[1], a2[3])
 func `yw=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[1] = b.x; a[3] = b.y
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y
 template zx*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[2], a2[0])
 func `zx=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[2] = b.x; a[0] = b.y
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y
 template zy*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[2], a2[1])
 func `zy=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[2] = b.x; a[1] = b.y
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y
 template zz*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[2], a2[2])
 func `zz=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[2] = b.x; a[2] = b.y
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y
 template zw*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[2], a2[3])
 func `zw=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[2] = b.x; a[3] = b.y
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y
 template wx*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[3], a2[0])
 func `wx=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[3] = b.x; a[0] = b.y
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y
 template wy*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[3], a2[1])
 func `wy=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[3] = b.x; a[1] = b.y
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y
 template wz*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[3], a2[2])
 func `wz=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[3] = b.x; a[2] = b.y
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y
 template ww*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[3], a2[3])
 func `ww=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[3] = b.x; a[3] = b.y
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y
 
 # 2 x rgba
 template rr*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[0], a2[0])
 func `rr=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[0] = b.x; a[0] = b.y
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y
 template rg*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[0], a2[1])
 func `rg=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[0] = b.x; a[1] = b.y
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y
 template rb*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[0], a2[2])
 func `rb=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[0] = b.x; a[2] = b.y
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y
 template ra*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[0], a2[3])
 func `ra=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[0] = b.x; a[3] = b.y
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y
 template gr*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[1], a2[0])
 func `gr=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[1] = b.x; a[0] = b.y
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y
 template gg*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[1], a2[1])
 func `gg=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[1] = b.x; a[1] = b.y
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y
 template gb*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[1], a2[2])
 func `gb=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[1] = b.x; a[2] = b.y
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y
 template ga*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[1], a2[3])
 func `ga=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[1] = b.x; a[3] = b.y
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y
 template br*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[2], a2[0])
 func `br=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[2] = b.x; a[0] = b.y
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y
 template bg*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[2], a2[1])
 func `bg=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[2] = b.x; a[1] = b.y
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y
 template bb*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[2], a2[2])
 func `bb=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[2] = b.x; a[2] = b.y
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y
 template ba*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[2], a2[3])
 func `ba=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[2] = b.x; a[3] = b.y
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y
 template ar*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[3], a2[0])
 func `ar=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[3] = b.x; a[0] = b.y
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y
 template ag*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[3], a2[1])
 func `ag=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[3] = b.x; a[1] = b.y
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y
 template ab*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[3], a2[2])
 func `ab=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[3] = b.x; a[2] = b.y
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y
 template aa*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[3], a2[3])
 func `aa=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[3] = b.x; a[3] = b.y
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y
 
 # 2 x stpq
 template ss*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[0], a2[0])
 func `ss=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[0] = b.x; a[0] = b.y
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y
 template st*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[0], a2[1])
 func `st=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[0] = b.x; a[1] = b.y
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y
 template sp*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[0], a2[2])
 func `sp=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[0] = b.x; a[2] = b.y
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y
 template sq*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[0], a2[3])
 func `sq=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[0] = b.x; a[3] = b.y
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y
 template ts*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[1], a2[0])
 func `ts=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[1] = b.x; a[0] = b.y
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y
 template tt*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[1], a2[1])
 func `tt=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[1] = b.x; a[1] = b.y
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y
 template tp*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[1], a2[2])
 func `tp=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[1] = b.x; a[2] = b.y
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y
 template tq*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[1], a2[3])
 func `tq=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[1] = b.x; a[3] = b.y
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y
 template ps*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[2], a2[0])
 func `ps=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[2] = b.x; a[0] = b.y
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y
 template pt*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[2], a2[1])
 func `pt=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[2] = b.x; a[1] = b.y
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y
 template pp*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[2], a2[2])
 func `pp=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[2] = b.x; a[2] = b.y
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y
 template pq*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[2], a2[3])
 func `pq=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[2] = b.x; a[3] = b.y
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y
 template qs*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[3], a2[0])
 func `qs=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[3] = b.x; a[0] = b.y
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y
 template qt*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[3], a2[1])
 func `qt=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[3] = b.x; a[1] = b.y
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y
 template qp*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[3], a2[2])
 func `qp=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[3] = b.x; a[2] = b.y
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y
 template qq*[T](a: GVec234[T]): GVec2[T] =
   let a2 = a
   gvec2(a2[3], a2[3])
 func `qq=`*[T](a: var GVec234[T], b: GVec2[T]) =
-  a[3] = b.x; a[3] = b.y
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y
 
 # 3 x xyzw
 template xxx*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[0], a2[0])
 func `xxx=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[0] = b.y; a[0] = b.z
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[0] = b2.z
 template xxy*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[0], a2[1])
 func `xxy=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[0] = b.y; a[1] = b.z
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[1] = b2.z
 template xxz*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[0], a2[2])
 func `xxz=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[0] = b.y; a[2] = b.z
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[2] = b2.z
 template xxw*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[0], a2[3])
 func `xxw=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[0] = b.y; a[3] = b.z
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[3] = b2.z
 template xyx*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[1], a2[0])
 func `xyx=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[1] = b.y; a[0] = b.z
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[0] = b2.z
 template xyy*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[1], a2[1])
 func `xyy=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[1] = b.y; a[1] = b.z
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[1] = b2.z
 template xyz*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[1], a2[2])
 func `xyz=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[1] = b.y; a[2] = b.z
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[2] = b2.z
 template xyw*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[1], a2[3])
 func `xyw=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[1] = b.y; a[3] = b.z
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[3] = b2.z
 template xzx*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[2], a2[0])
 func `xzx=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[2] = b.y; a[0] = b.z
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[0] = b2.z
 template xzy*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[2], a2[1])
 func `xzy=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[2] = b.y; a[1] = b.z
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[1] = b2.z
 template xzz*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[2], a2[2])
 func `xzz=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[2] = b.y; a[2] = b.z
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[2] = b2.z
 template xzw*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[2], a2[3])
 func `xzw=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[2] = b.y; a[3] = b.z
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[3] = b2.z
 template xwx*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[3], a2[0])
 func `xwx=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[3] = b.y; a[0] = b.z
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[0] = b2.z
 template xwy*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[3], a2[1])
 func `xwy=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[3] = b.y; a[1] = b.z
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[1] = b2.z
 template xwz*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[3], a2[2])
 func `xwz=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[3] = b.y; a[2] = b.z
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[2] = b2.z
 template xww*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[3], a2[3])
 func `xww=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[3] = b.y; a[3] = b.z
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[3] = b2.z
 template yxx*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[0], a2[0])
 func `yxx=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[0] = b.y; a[0] = b.z
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[0] = b2.z
 template yxy*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[0], a2[1])
 func `yxy=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[0] = b.y; a[1] = b.z
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[1] = b2.z
 template yxz*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[0], a2[2])
 func `yxz=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[0] = b.y; a[2] = b.z
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[2] = b2.z
 template yxw*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[0], a2[3])
 func `yxw=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[0] = b.y; a[3] = b.z
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[3] = b2.z
 template yyx*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[1], a2[0])
 func `yyx=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[1] = b.y; a[0] = b.z
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[0] = b2.z
 template yyy*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[1], a2[1])
 func `yyy=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[1] = b.y; a[1] = b.z
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[1] = b2.z
 template yyz*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[1], a2[2])
 func `yyz=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[1] = b.y; a[2] = b.z
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[2] = b2.z
 template yyw*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[1], a2[3])
 func `yyw=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[1] = b.y; a[3] = b.z
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[3] = b2.z
 template yzx*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[2], a2[0])
 func `yzx=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[2] = b.y; a[0] = b.z
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[0] = b2.z
 template yzy*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[2], a2[1])
 func `yzy=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[2] = b.y; a[1] = b.z
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[1] = b2.z
 template yzz*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[2], a2[2])
 func `yzz=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[2] = b.y; a[2] = b.z
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[2] = b2.z
 template yzw*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[2], a2[3])
 func `yzw=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[2] = b.y; a[3] = b.z
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[3] = b2.z
 template ywx*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[3], a2[0])
 func `ywx=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[3] = b.y; a[0] = b.z
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[0] = b2.z
 template ywy*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[3], a2[1])
 func `ywy=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[3] = b.y; a[1] = b.z
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[1] = b2.z
 template ywz*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[3], a2[2])
 func `ywz=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[3] = b.y; a[2] = b.z
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[2] = b2.z
 template yww*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[3], a2[3])
 func `yww=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[3] = b.y; a[3] = b.z
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[3] = b2.z
 template zxx*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[0], a2[0])
 func `zxx=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[0] = b.y; a[0] = b.z
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[0] = b2.z
 template zxy*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[0], a2[1])
 func `zxy=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[0] = b.y; a[1] = b.z
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[1] = b2.z
 template zxz*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[0], a2[2])
 func `zxz=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[0] = b.y; a[2] = b.z
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[2] = b2.z
 template zxw*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[0], a2[3])
 func `zxw=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[0] = b.y; a[3] = b.z
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[3] = b2.z
 template zyx*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[1], a2[0])
 func `zyx=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[1] = b.y; a[0] = b.z
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[0] = b2.z
 template zyy*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[1], a2[1])
 func `zyy=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[1] = b.y; a[1] = b.z
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[1] = b2.z
 template zyz*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[1], a2[2])
 func `zyz=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[1] = b.y; a[2] = b.z
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[2] = b2.z
 template zyw*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[1], a2[3])
 func `zyw=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[1] = b.y; a[3] = b.z
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[3] = b2.z
 template zzx*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[2], a2[0])
 func `zzx=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[2] = b.y; a[0] = b.z
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[0] = b2.z
 template zzy*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[2], a2[1])
 func `zzy=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[2] = b.y; a[1] = b.z
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[1] = b2.z
 template zzz*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[2], a2[2])
 func `zzz=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[2] = b.y; a[2] = b.z
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[2] = b2.z
 template zzw*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[2], a2[3])
 func `zzw=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[2] = b.y; a[3] = b.z
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[3] = b2.z
 template zwx*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[3], a2[0])
 func `zwx=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[3] = b.y; a[0] = b.z
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[0] = b2.z
 template zwy*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[3], a2[1])
 func `zwy=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[3] = b.y; a[1] = b.z
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[1] = b2.z
 template zwz*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[3], a2[2])
 func `zwz=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[3] = b.y; a[2] = b.z
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[2] = b2.z
 template zww*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[3], a2[3])
 func `zww=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[3] = b.y; a[3] = b.z
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[3] = b2.z
 template wxx*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[0], a2[0])
 func `wxx=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[0] = b.y; a[0] = b.z
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[0] = b2.z
 template wxy*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[0], a2[1])
 func `wxy=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[0] = b.y; a[1] = b.z
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[1] = b2.z
 template wxz*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[0], a2[2])
 func `wxz=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[0] = b.y; a[2] = b.z
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[2] = b2.z
 template wxw*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[0], a2[3])
 func `wxw=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[0] = b.y; a[3] = b.z
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[3] = b2.z
 template wyx*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[1], a2[0])
 func `wyx=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[1] = b.y; a[0] = b.z
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[0] = b2.z
 template wyy*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[1], a2[1])
 func `wyy=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[1] = b.y; a[1] = b.z
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[1] = b2.z
 template wyz*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[1], a2[2])
 func `wyz=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[1] = b.y; a[2] = b.z
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[2] = b2.z
 template wyw*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[1], a2[3])
 func `wyw=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[1] = b.y; a[3] = b.z
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[3] = b2.z
 template wzx*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[2], a2[0])
 func `wzx=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[2] = b.y; a[0] = b.z
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[0] = b2.z
 template wzy*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[2], a2[1])
 func `wzy=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[2] = b.y; a[1] = b.z
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[1] = b2.z
 template wzz*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[2], a2[2])
 func `wzz=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[2] = b.y; a[2] = b.z
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[2] = b2.z
 template wzw*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[2], a2[3])
 func `wzw=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[2] = b.y; a[3] = b.z
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[3] = b2.z
 template wwx*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[3], a2[0])
 func `wwx=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[3] = b.y; a[0] = b.z
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[0] = b2.z
 template wwy*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[3], a2[1])
 func `wwy=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[3] = b.y; a[1] = b.z
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[1] = b2.z
 template wwz*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[3], a2[2])
 func `wwz=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[3] = b.y; a[2] = b.z
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[2] = b2.z
 template www*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[3], a2[3])
 func `www=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[3] = b.y; a[3] = b.z
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[3] = b2.z
 
 # 3 x rgba
 template rrr*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[0], a2[0])
 func `rrr=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[0] = b.y; a[0] = b.z
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[0] = b2.z
 template rrg*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[0], a2[1])
 func `rrg=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[0] = b.y; a[1] = b.z
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[1] = b2.z
 template rrb*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[0], a2[2])
 func `rrb=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[0] = b.y; a[2] = b.z
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[2] = b2.z
 template rra*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[0], a2[3])
 func `rra=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[0] = b.y; a[3] = b.z
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[3] = b2.z
 template rgr*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[1], a2[0])
 func `rgr=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[1] = b.y; a[0] = b.z
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[0] = b2.z
 template rgg*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[1], a2[1])
 func `rgg=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[1] = b.y; a[1] = b.z
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[1] = b2.z
 template rgb*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[1], a2[2])
 func `rgb=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[1] = b.y; a[2] = b.z
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[2] = b2.z
 template rga*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[1], a2[3])
 func `rga=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[1] = b.y; a[3] = b.z
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[3] = b2.z
 template rbr*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[2], a2[0])
 func `rbr=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[2] = b.y; a[0] = b.z
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[0] = b2.z
 template rbg*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[2], a2[1])
 func `rbg=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[2] = b.y; a[1] = b.z
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[1] = b2.z
 template rbb*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[2], a2[2])
 func `rbb=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[2] = b.y; a[2] = b.z
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[2] = b2.z
 template rba*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[2], a2[3])
 func `rba=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[2] = b.y; a[3] = b.z
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[3] = b2.z
 template rar*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[3], a2[0])
 func `rar=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[3] = b.y; a[0] = b.z
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[0] = b2.z
 template rag*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[3], a2[1])
 func `rag=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[3] = b.y; a[1] = b.z
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[1] = b2.z
 template rab*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[3], a2[2])
 func `rab=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[3] = b.y; a[2] = b.z
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[2] = b2.z
 template raa*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[3], a2[3])
 func `raa=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[3] = b.y; a[3] = b.z
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[3] = b2.z
 template grr*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[0], a2[0])
 func `grr=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[0] = b.y; a[0] = b.z
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[0] = b2.z
 template grg*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[0], a2[1])
 func `grg=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[0] = b.y; a[1] = b.z
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[1] = b2.z
 template grb*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[0], a2[2])
 func `grb=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[0] = b.y; a[2] = b.z
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[2] = b2.z
 template gra*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[0], a2[3])
 func `gra=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[0] = b.y; a[3] = b.z
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[3] = b2.z
 template ggr*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[1], a2[0])
 func `ggr=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[1] = b.y; a[0] = b.z
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[0] = b2.z
 template ggg*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[1], a2[1])
 func `ggg=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[1] = b.y; a[1] = b.z
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[1] = b2.z
 template ggb*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[1], a2[2])
 func `ggb=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[1] = b.y; a[2] = b.z
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[2] = b2.z
 template gga*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[1], a2[3])
 func `gga=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[1] = b.y; a[3] = b.z
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[3] = b2.z
 template gbr*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[2], a2[0])
 func `gbr=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[2] = b.y; a[0] = b.z
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[0] = b2.z
 template gbg*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[2], a2[1])
 func `gbg=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[2] = b.y; a[1] = b.z
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[1] = b2.z
 template gbb*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[2], a2[2])
 func `gbb=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[2] = b.y; a[2] = b.z
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[2] = b2.z
 template gba*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[2], a2[3])
 func `gba=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[2] = b.y; a[3] = b.z
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[3] = b2.z
 template gar*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[3], a2[0])
 func `gar=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[3] = b.y; a[0] = b.z
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[0] = b2.z
 template gag*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[3], a2[1])
 func `gag=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[3] = b.y; a[1] = b.z
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[1] = b2.z
 template gab*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[3], a2[2])
 func `gab=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[3] = b.y; a[2] = b.z
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[2] = b2.z
 template gaa*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[3], a2[3])
 func `gaa=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[3] = b.y; a[3] = b.z
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[3] = b2.z
 template brr*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[0], a2[0])
 func `brr=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[0] = b.y; a[0] = b.z
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[0] = b2.z
 template brg*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[0], a2[1])
 func `brg=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[0] = b.y; a[1] = b.z
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[1] = b2.z
 template brb*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[0], a2[2])
 func `brb=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[0] = b.y; a[2] = b.z
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[2] = b2.z
 template bra*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[0], a2[3])
 func `bra=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[0] = b.y; a[3] = b.z
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[3] = b2.z
 template bgr*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[1], a2[0])
 func `bgr=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[1] = b.y; a[0] = b.z
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[0] = b2.z
 template bgg*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[1], a2[1])
 func `bgg=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[1] = b.y; a[1] = b.z
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[1] = b2.z
 template bgb*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[1], a2[2])
 func `bgb=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[1] = b.y; a[2] = b.z
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[2] = b2.z
 template bga*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[1], a2[3])
 func `bga=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[1] = b.y; a[3] = b.z
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[3] = b2.z
 template bbr*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[2], a2[0])
 func `bbr=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[2] = b.y; a[0] = b.z
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[0] = b2.z
 template bbg*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[2], a2[1])
 func `bbg=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[2] = b.y; a[1] = b.z
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[1] = b2.z
 template bbb*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[2], a2[2])
 func `bbb=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[2] = b.y; a[2] = b.z
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[2] = b2.z
 template bba*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[2], a2[3])
 func `bba=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[2] = b.y; a[3] = b.z
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[3] = b2.z
 template bar*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[3], a2[0])
 func `bar=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[3] = b.y; a[0] = b.z
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[0] = b2.z
 template bag*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[3], a2[1])
 func `bag=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[3] = b.y; a[1] = b.z
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[1] = b2.z
 template bab*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[3], a2[2])
 func `bab=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[3] = b.y; a[2] = b.z
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[2] = b2.z
 template baa*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[3], a2[3])
 func `baa=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[3] = b.y; a[3] = b.z
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[3] = b2.z
 template arr*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[0], a2[0])
 func `arr=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[0] = b.y; a[0] = b.z
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[0] = b2.z
 template arg*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[0], a2[1])
 func `arg=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[0] = b.y; a[1] = b.z
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[1] = b2.z
 template arb*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[0], a2[2])
 func `arb=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[0] = b.y; a[2] = b.z
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[2] = b2.z
 template ara*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[0], a2[3])
 func `ara=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[0] = b.y; a[3] = b.z
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[3] = b2.z
 template agr*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[1], a2[0])
 func `agr=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[1] = b.y; a[0] = b.z
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[0] = b2.z
 template agg*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[1], a2[1])
 func `agg=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[1] = b.y; a[1] = b.z
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[1] = b2.z
 template agb*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[1], a2[2])
 func `agb=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[1] = b.y; a[2] = b.z
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[2] = b2.z
 template aga*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[1], a2[3])
 func `aga=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[1] = b.y; a[3] = b.z
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[3] = b2.z
 template abr*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[2], a2[0])
 func `abr=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[2] = b.y; a[0] = b.z
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[0] = b2.z
 template abg*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[2], a2[1])
 func `abg=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[2] = b.y; a[1] = b.z
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[1] = b2.z
 template abb*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[2], a2[2])
 func `abb=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[2] = b.y; a[2] = b.z
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[2] = b2.z
 template aba*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[2], a2[3])
 func `aba=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[2] = b.y; a[3] = b.z
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[3] = b2.z
 template aar*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[3], a2[0])
 func `aar=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[3] = b.y; a[0] = b.z
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[0] = b2.z
 template aag*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[3], a2[1])
 func `aag=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[3] = b.y; a[1] = b.z
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[1] = b2.z
 template aab*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[3], a2[2])
 func `aab=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[3] = b.y; a[2] = b.z
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[2] = b2.z
 template aaa*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[3], a2[3])
 func `aaa=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[3] = b.y; a[3] = b.z
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[3] = b2.z
 
 # 3 x stpq
 template sss*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[0], a2[0])
 func `sss=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[0] = b.y; a[0] = b.z
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[0] = b2.z
 template sst*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[0], a2[1])
 func `sst=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[0] = b.y; a[1] = b.z
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[1] = b2.z
 template ssp*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[0], a2[2])
 func `ssp=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[0] = b.y; a[2] = b.z
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[2] = b2.z
 template ssq*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[0], a2[3])
 func `ssq=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[0] = b.y; a[3] = b.z
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[3] = b2.z
 template sts*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[1], a2[0])
 func `sts=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[1] = b.y; a[0] = b.z
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[0] = b2.z
 template stt*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[1], a2[1])
 func `stt=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[1] = b.y; a[1] = b.z
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[1] = b2.z
 template stp*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[1], a2[2])
 func `stp=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[1] = b.y; a[2] = b.z
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[2] = b2.z
 template stq*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[1], a2[3])
 func `stq=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[1] = b.y; a[3] = b.z
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[3] = b2.z
 template sps*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[2], a2[0])
 func `sps=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[2] = b.y; a[0] = b.z
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[0] = b2.z
 template spt*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[2], a2[1])
 func `spt=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[2] = b.y; a[1] = b.z
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[1] = b2.z
 template spp*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[2], a2[2])
 func `spp=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[2] = b.y; a[2] = b.z
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[2] = b2.z
 template spq*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[2], a2[3])
 func `spq=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[2] = b.y; a[3] = b.z
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[3] = b2.z
 template sqs*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[3], a2[0])
 func `sqs=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[3] = b.y; a[0] = b.z
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[0] = b2.z
 template sqt*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[3], a2[1])
 func `sqt=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[3] = b.y; a[1] = b.z
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[1] = b2.z
 template sqp*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[3], a2[2])
 func `sqp=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[3] = b.y; a[2] = b.z
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[2] = b2.z
 template sqq*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[0], a2[3], a2[3])
 func `sqq=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[0] = b.x; a[3] = b.y; a[3] = b.z
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[3] = b2.z
 template tss*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[0], a2[0])
 func `tss=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[0] = b.y; a[0] = b.z
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[0] = b2.z
 template tst*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[0], a2[1])
 func `tst=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[0] = b.y; a[1] = b.z
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[1] = b2.z
 template tsp*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[0], a2[2])
 func `tsp=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[0] = b.y; a[2] = b.z
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[2] = b2.z
 template tsq*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[0], a2[3])
 func `tsq=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[0] = b.y; a[3] = b.z
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[3] = b2.z
 template tts*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[1], a2[0])
 func `tts=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[1] = b.y; a[0] = b.z
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[0] = b2.z
 template ttt*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[1], a2[1])
 func `ttt=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[1] = b.y; a[1] = b.z
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[1] = b2.z
 template ttp*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[1], a2[2])
 func `ttp=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[1] = b.y; a[2] = b.z
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[2] = b2.z
 template ttq*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[1], a2[3])
 func `ttq=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[1] = b.y; a[3] = b.z
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[3] = b2.z
 template tps*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[2], a2[0])
 func `tps=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[2] = b.y; a[0] = b.z
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[0] = b2.z
 template tpt*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[2], a2[1])
 func `tpt=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[2] = b.y; a[1] = b.z
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[1] = b2.z
 template tpp*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[2], a2[2])
 func `tpp=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[2] = b.y; a[2] = b.z
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[2] = b2.z
 template tpq*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[2], a2[3])
 func `tpq=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[2] = b.y; a[3] = b.z
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[3] = b2.z
 template tqs*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[3], a2[0])
 func `tqs=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[3] = b.y; a[0] = b.z
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[0] = b2.z
 template tqt*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[3], a2[1])
 func `tqt=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[3] = b.y; a[1] = b.z
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[1] = b2.z
 template tqp*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[3], a2[2])
 func `tqp=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[3] = b.y; a[2] = b.z
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[2] = b2.z
 template tqq*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[1], a2[3], a2[3])
 func `tqq=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[1] = b.x; a[3] = b.y; a[3] = b.z
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[3] = b2.z
 template pss*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[0], a2[0])
 func `pss=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[0] = b.y; a[0] = b.z
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[0] = b2.z
 template pst*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[0], a2[1])
 func `pst=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[0] = b.y; a[1] = b.z
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[1] = b2.z
 template psp*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[0], a2[2])
 func `psp=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[0] = b.y; a[2] = b.z
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[2] = b2.z
 template psq*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[0], a2[3])
 func `psq=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[0] = b.y; a[3] = b.z
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[3] = b2.z
 template pts*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[1], a2[0])
 func `pts=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[1] = b.y; a[0] = b.z
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[0] = b2.z
 template ptt*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[1], a2[1])
 func `ptt=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[1] = b.y; a[1] = b.z
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[1] = b2.z
 template ptp*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[1], a2[2])
 func `ptp=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[1] = b.y; a[2] = b.z
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[2] = b2.z
 template ptq*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[1], a2[3])
 func `ptq=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[1] = b.y; a[3] = b.z
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[3] = b2.z
 template pps*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[2], a2[0])
 func `pps=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[2] = b.y; a[0] = b.z
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[0] = b2.z
 template ppt*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[2], a2[1])
 func `ppt=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[2] = b.y; a[1] = b.z
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[1] = b2.z
 template ppp*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[2], a2[2])
 func `ppp=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[2] = b.y; a[2] = b.z
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[2] = b2.z
 template ppq*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[2], a2[3])
 func `ppq=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[2] = b.y; a[3] = b.z
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[3] = b2.z
 template pqs*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[3], a2[0])
 func `pqs=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[3] = b.y; a[0] = b.z
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[0] = b2.z
 template pqt*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[3], a2[1])
 func `pqt=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[3] = b.y; a[1] = b.z
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[1] = b2.z
 template pqp*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[3], a2[2])
 func `pqp=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[3] = b.y; a[2] = b.z
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[2] = b2.z
 template pqq*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[2], a2[3], a2[3])
 func `pqq=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[2] = b.x; a[3] = b.y; a[3] = b.z
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[3] = b2.z
 template qss*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[0], a2[0])
 func `qss=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[0] = b.y; a[0] = b.z
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[0] = b2.z
 template qst*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[0], a2[1])
 func `qst=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[0] = b.y; a[1] = b.z
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[1] = b2.z
 template qsp*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[0], a2[2])
 func `qsp=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[0] = b.y; a[2] = b.z
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[2] = b2.z
 template qsq*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[0], a2[3])
 func `qsq=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[0] = b.y; a[3] = b.z
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[3] = b2.z
 template qts*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[1], a2[0])
 func `qts=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[1] = b.y; a[0] = b.z
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[0] = b2.z
 template qtt*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[1], a2[1])
 func `qtt=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[1] = b.y; a[1] = b.z
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[1] = b2.z
 template qtp*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[1], a2[2])
 func `qtp=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[1] = b.y; a[2] = b.z
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[2] = b2.z
 template qtq*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[1], a2[3])
 func `qtq=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[1] = b.y; a[3] = b.z
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[3] = b2.z
 template qps*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[2], a2[0])
 func `qps=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[2] = b.y; a[0] = b.z
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[0] = b2.z
 template qpt*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[2], a2[1])
 func `qpt=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[2] = b.y; a[1] = b.z
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[1] = b2.z
 template qpp*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[2], a2[2])
 func `qpp=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[2] = b.y; a[2] = b.z
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[2] = b2.z
 template qpq*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[2], a2[3])
 func `qpq=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[2] = b.y; a[3] = b.z
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[3] = b2.z
 template qqs*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[3], a2[0])
 func `qqs=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[3] = b.y; a[0] = b.z
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[0] = b2.z
 template qqt*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[3], a2[1])
 func `qqt=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[3] = b.y; a[1] = b.z
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[1] = b2.z
 template qqp*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[3], a2[2])
 func `qqp=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[3] = b.y; a[2] = b.z
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[2] = b2.z
 template qqq*[T](a: GVec234[T]): GVec3[T] =
   let a2 = a
   gvec3(a2[3], a2[3], a2[3])
 func `qqq=`*[T](a: var GVec234[T], b: GVec3[T]) =
-  a[3] = b.x; a[3] = b.y; a[3] = b.z
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[3] = b2.z
 
 # 4 x xyzw
 template xxxx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[0], a2[0])
 func `xxxx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[0] = b2.z; a[0] = b2.w
 template xxxy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[0], a2[1])
 func `xxxy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[0] = b2.z; a[1] = b2.w
 template xxxz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[0], a2[2])
 func `xxxz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[0] = b2.z; a[2] = b2.w
 template xxxw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[0], a2[3])
 func `xxxw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[0] = b2.z; a[3] = b2.w
 template xxyx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[1], a2[0])
 func `xxyx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[1] = b2.z; a[0] = b2.w
 template xxyy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[1], a2[1])
 func `xxyy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[1] = b2.z; a[1] = b2.w
 template xxyz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[1], a2[2])
 func `xxyz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[1] = b2.z; a[2] = b2.w
 template xxyw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[1], a2[3])
 func `xxyw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[1] = b2.z; a[3] = b2.w
 template xxzx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[2], a2[0])
 func `xxzx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[2] = b2.z; a[0] = b2.w
 template xxzy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[2], a2[1])
 func `xxzy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[2] = b2.z; a[1] = b2.w
 template xxzz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[2], a2[2])
 func `xxzz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[2] = b2.z; a[2] = b2.w
 template xxzw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[2], a2[3])
 func `xxzw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[2] = b2.z; a[3] = b2.w
 template xxwx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[3], a2[0])
 func `xxwx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[3] = b2.z; a[0] = b2.w
 template xxwy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[3], a2[1])
 func `xxwy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[3] = b2.z; a[1] = b2.w
 template xxwz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[3], a2[2])
 func `xxwz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[3] = b2.z; a[2] = b2.w
 template xxww*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[3], a2[3])
 func `xxww=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[3] = b2.z; a[3] = b2.w
 template xyxx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[0], a2[0])
 func `xyxx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[0] = b2.z; a[0] = b2.w
 template xyxy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[0], a2[1])
 func `xyxy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[0] = b2.z; a[1] = b2.w
 template xyxz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[0], a2[2])
 func `xyxz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[0] = b2.z; a[2] = b2.w
 template xyxw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[0], a2[3])
 func `xyxw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[0] = b2.z; a[3] = b2.w
 template xyyx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[1], a2[0])
 func `xyyx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[1] = b2.z; a[0] = b2.w
 template xyyy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[1], a2[1])
 func `xyyy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[1] = b2.z; a[1] = b2.w
 template xyyz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[1], a2[2])
 func `xyyz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[1] = b2.z; a[2] = b2.w
 template xyyw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[1], a2[3])
 func `xyyw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[1] = b2.z; a[3] = b2.w
 template xyzx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[2], a2[0])
 func `xyzx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[2] = b2.z; a[0] = b2.w
 template xyzy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[2], a2[1])
 func `xyzy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[2] = b2.z; a[1] = b2.w
 template xyzz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[2], a2[2])
 func `xyzz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[2] = b2.z; a[2] = b2.w
 template xyzw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[2], a2[3])
 func `xyzw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[2] = b2.z; a[3] = b2.w
 template xywx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[3], a2[0])
 func `xywx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[3] = b2.z; a[0] = b2.w
 template xywy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[3], a2[1])
 func `xywy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[3] = b2.z; a[1] = b2.w
 template xywz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[3], a2[2])
 func `xywz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[3] = b2.z; a[2] = b2.w
 template xyww*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[3], a2[3])
 func `xyww=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[3] = b2.z; a[3] = b2.w
 template xzxx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[0], a2[0])
 func `xzxx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[0] = b2.z; a[0] = b2.w
 template xzxy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[0], a2[1])
 func `xzxy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[0] = b2.z; a[1] = b2.w
 template xzxz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[0], a2[2])
 func `xzxz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[0] = b2.z; a[2] = b2.w
 template xzxw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[0], a2[3])
 func `xzxw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[0] = b2.z; a[3] = b2.w
 template xzyx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[1], a2[0])
 func `xzyx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[1] = b2.z; a[0] = b2.w
 template xzyy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[1], a2[1])
 func `xzyy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[1] = b2.z; a[1] = b2.w
 template xzyz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[1], a2[2])
 func `xzyz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[1] = b2.z; a[2] = b2.w
 template xzyw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[1], a2[3])
 func `xzyw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[1] = b2.z; a[3] = b2.w
 template xzzx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[2], a2[0])
 func `xzzx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[2] = b2.z; a[0] = b2.w
 template xzzy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[2], a2[1])
 func `xzzy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[2] = b2.z; a[1] = b2.w
 template xzzz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[2], a2[2])
 func `xzzz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[2] = b2.z; a[2] = b2.w
 template xzzw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[2], a2[3])
 func `xzzw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[2] = b2.z; a[3] = b2.w
 template xzwx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[3], a2[0])
 func `xzwx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[3] = b2.z; a[0] = b2.w
 template xzwy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[3], a2[1])
 func `xzwy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[3] = b2.z; a[1] = b2.w
 template xzwz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[3], a2[2])
 func `xzwz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[3] = b2.z; a[2] = b2.w
 template xzww*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[3], a2[3])
 func `xzww=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[3] = b2.z; a[3] = b2.w
 template xwxx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[0], a2[0])
 func `xwxx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[0] = b2.z; a[0] = b2.w
 template xwxy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[0], a2[1])
 func `xwxy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[0] = b2.z; a[1] = b2.w
 template xwxz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[0], a2[2])
 func `xwxz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[0] = b2.z; a[2] = b2.w
 template xwxw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[0], a2[3])
 func `xwxw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[0] = b2.z; a[3] = b2.w
 template xwyx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[1], a2[0])
 func `xwyx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[1] = b2.z; a[0] = b2.w
 template xwyy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[1], a2[1])
 func `xwyy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[1] = b2.z; a[1] = b2.w
 template xwyz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[1], a2[2])
 func `xwyz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[1] = b2.z; a[2] = b2.w
 template xwyw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[1], a2[3])
 func `xwyw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[1] = b2.z; a[3] = b2.w
 template xwzx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[2], a2[0])
 func `xwzx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[2] = b2.z; a[0] = b2.w
 template xwzy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[2], a2[1])
 func `xwzy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[2] = b2.z; a[1] = b2.w
 template xwzz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[2], a2[2])
 func `xwzz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[2] = b2.z; a[2] = b2.w
 template xwzw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[2], a2[3])
 func `xwzw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[2] = b2.z; a[3] = b2.w
 template xwwx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[3], a2[0])
 func `xwwx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[3] = b2.z; a[0] = b2.w
 template xwwy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[3], a2[1])
 func `xwwy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[3] = b2.z; a[1] = b2.w
 template xwwz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[3], a2[2])
 func `xwwz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[3] = b2.z; a[2] = b2.w
 template xwww*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[3], a2[3])
 func `xwww=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[3] = b2.z; a[3] = b2.w
 template yxxx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[0], a2[0])
 func `yxxx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[0] = b2.z; a[0] = b2.w
 template yxxy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[0], a2[1])
 func `yxxy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[0] = b2.z; a[1] = b2.w
 template yxxz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[0], a2[2])
 func `yxxz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[0] = b2.z; a[2] = b2.w
 template yxxw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[0], a2[3])
 func `yxxw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[0] = b2.z; a[3] = b2.w
 template yxyx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[1], a2[0])
 func `yxyx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[1] = b2.z; a[0] = b2.w
 template yxyy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[1], a2[1])
 func `yxyy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[1] = b2.z; a[1] = b2.w
 template yxyz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[1], a2[2])
 func `yxyz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[1] = b2.z; a[2] = b2.w
 template yxyw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[1], a2[3])
 func `yxyw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[1] = b2.z; a[3] = b2.w
 template yxzx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[2], a2[0])
 func `yxzx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[2] = b2.z; a[0] = b2.w
 template yxzy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[2], a2[1])
 func `yxzy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[2] = b2.z; a[1] = b2.w
 template yxzz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[2], a2[2])
 func `yxzz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[2] = b2.z; a[2] = b2.w
 template yxzw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[2], a2[3])
 func `yxzw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[2] = b2.z; a[3] = b2.w
 template yxwx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[3], a2[0])
 func `yxwx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[3] = b2.z; a[0] = b2.w
 template yxwy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[3], a2[1])
 func `yxwy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[3] = b2.z; a[1] = b2.w
 template yxwz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[3], a2[2])
 func `yxwz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[3] = b2.z; a[2] = b2.w
 template yxww*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[3], a2[3])
 func `yxww=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[3] = b2.z; a[3] = b2.w
 template yyxx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[0], a2[0])
 func `yyxx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[0] = b2.z; a[0] = b2.w
 template yyxy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[0], a2[1])
 func `yyxy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[0] = b2.z; a[1] = b2.w
 template yyxz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[0], a2[2])
 func `yyxz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[0] = b2.z; a[2] = b2.w
 template yyxw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[0], a2[3])
 func `yyxw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[0] = b2.z; a[3] = b2.w
 template yyyx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[1], a2[0])
 func `yyyx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[1] = b2.z; a[0] = b2.w
 template yyyy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[1], a2[1])
 func `yyyy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[1] = b2.z; a[1] = b2.w
 template yyyz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[1], a2[2])
 func `yyyz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[1] = b2.z; a[2] = b2.w
 template yyyw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[1], a2[3])
 func `yyyw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[1] = b2.z; a[3] = b2.w
 template yyzx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[2], a2[0])
 func `yyzx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[2] = b2.z; a[0] = b2.w
 template yyzy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[2], a2[1])
 func `yyzy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[2] = b2.z; a[1] = b2.w
 template yyzz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[2], a2[2])
 func `yyzz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[2] = b2.z; a[2] = b2.w
 template yyzw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[2], a2[3])
 func `yyzw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[2] = b2.z; a[3] = b2.w
 template yywx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[3], a2[0])
 func `yywx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[3] = b2.z; a[0] = b2.w
 template yywy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[3], a2[1])
 func `yywy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[3] = b2.z; a[1] = b2.w
 template yywz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[3], a2[2])
 func `yywz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[3] = b2.z; a[2] = b2.w
 template yyww*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[3], a2[3])
 func `yyww=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[3] = b2.z; a[3] = b2.w
 template yzxx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[0], a2[0])
 func `yzxx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[0] = b2.z; a[0] = b2.w
 template yzxy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[0], a2[1])
 func `yzxy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[0] = b2.z; a[1] = b2.w
 template yzxz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[0], a2[2])
 func `yzxz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[0] = b2.z; a[2] = b2.w
 template yzxw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[0], a2[3])
 func `yzxw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[0] = b2.z; a[3] = b2.w
 template yzyx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[1], a2[0])
 func `yzyx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[1] = b2.z; a[0] = b2.w
 template yzyy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[1], a2[1])
 func `yzyy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[1] = b2.z; a[1] = b2.w
 template yzyz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[1], a2[2])
 func `yzyz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[1] = b2.z; a[2] = b2.w
 template yzyw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[1], a2[3])
 func `yzyw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[1] = b2.z; a[3] = b2.w
 template yzzx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[2], a2[0])
 func `yzzx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[2] = b2.z; a[0] = b2.w
 template yzzy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[2], a2[1])
 func `yzzy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[2] = b2.z; a[1] = b2.w
 template yzzz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[2], a2[2])
 func `yzzz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[2] = b2.z; a[2] = b2.w
 template yzzw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[2], a2[3])
 func `yzzw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[2] = b2.z; a[3] = b2.w
 template yzwx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[3], a2[0])
 func `yzwx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[3] = b2.z; a[0] = b2.w
 template yzwy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[3], a2[1])
 func `yzwy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[3] = b2.z; a[1] = b2.w
 template yzwz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[3], a2[2])
 func `yzwz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[3] = b2.z; a[2] = b2.w
 template yzww*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[3], a2[3])
 func `yzww=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[3] = b2.z; a[3] = b2.w
 template ywxx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[0], a2[0])
 func `ywxx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[0] = b2.z; a[0] = b2.w
 template ywxy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[0], a2[1])
 func `ywxy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[0] = b2.z; a[1] = b2.w
 template ywxz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[0], a2[2])
 func `ywxz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[0] = b2.z; a[2] = b2.w
 template ywxw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[0], a2[3])
 func `ywxw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[0] = b2.z; a[3] = b2.w
 template ywyx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[1], a2[0])
 func `ywyx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[1] = b2.z; a[0] = b2.w
 template ywyy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[1], a2[1])
 func `ywyy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[1] = b2.z; a[1] = b2.w
 template ywyz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[1], a2[2])
 func `ywyz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[1] = b2.z; a[2] = b2.w
 template ywyw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[1], a2[3])
 func `ywyw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[1] = b2.z; a[3] = b2.w
 template ywzx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[2], a2[0])
 func `ywzx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[2] = b2.z; a[0] = b2.w
 template ywzy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[2], a2[1])
 func `ywzy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[2] = b2.z; a[1] = b2.w
 template ywzz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[2], a2[2])
 func `ywzz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[2] = b2.z; a[2] = b2.w
 template ywzw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[2], a2[3])
 func `ywzw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[2] = b2.z; a[3] = b2.w
 template ywwx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[3], a2[0])
 func `ywwx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[3] = b2.z; a[0] = b2.w
 template ywwy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[3], a2[1])
 func `ywwy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[3] = b2.z; a[1] = b2.w
 template ywwz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[3], a2[2])
 func `ywwz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[3] = b2.z; a[2] = b2.w
 template ywww*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[3], a2[3])
 func `ywww=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[3] = b2.z; a[3] = b2.w
 template zxxx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[0], a2[0])
 func `zxxx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[0] = b2.z; a[0] = b2.w
 template zxxy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[0], a2[1])
 func `zxxy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[0] = b2.z; a[1] = b2.w
 template zxxz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[0], a2[2])
 func `zxxz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[0] = b2.z; a[2] = b2.w
 template zxxw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[0], a2[3])
 func `zxxw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[0] = b2.z; a[3] = b2.w
 template zxyx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[1], a2[0])
 func `zxyx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[1] = b2.z; a[0] = b2.w
 template zxyy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[1], a2[1])
 func `zxyy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[1] = b2.z; a[1] = b2.w
 template zxyz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[1], a2[2])
 func `zxyz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[1] = b2.z; a[2] = b2.w
 template zxyw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[1], a2[3])
 func `zxyw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[1] = b2.z; a[3] = b2.w
 template zxzx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[2], a2[0])
 func `zxzx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[2] = b2.z; a[0] = b2.w
 template zxzy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[2], a2[1])
 func `zxzy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[2] = b2.z; a[1] = b2.w
 template zxzz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[2], a2[2])
 func `zxzz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[2] = b2.z; a[2] = b2.w
 template zxzw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[2], a2[3])
 func `zxzw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[2] = b2.z; a[3] = b2.w
 template zxwx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[3], a2[0])
 func `zxwx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[3] = b2.z; a[0] = b2.w
 template zxwy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[3], a2[1])
 func `zxwy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[3] = b2.z; a[1] = b2.w
 template zxwz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[3], a2[2])
 func `zxwz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[3] = b2.z; a[2] = b2.w
 template zxww*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[3], a2[3])
 func `zxww=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[3] = b2.z; a[3] = b2.w
 template zyxx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[0], a2[0])
 func `zyxx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[0] = b2.z; a[0] = b2.w
 template zyxy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[0], a2[1])
 func `zyxy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[0] = b2.z; a[1] = b2.w
 template zyxz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[0], a2[2])
 func `zyxz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[0] = b2.z; a[2] = b2.w
 template zyxw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[0], a2[3])
 func `zyxw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[0] = b2.z; a[3] = b2.w
 template zyyx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[1], a2[0])
 func `zyyx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[1] = b2.z; a[0] = b2.w
 template zyyy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[1], a2[1])
 func `zyyy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[1] = b2.z; a[1] = b2.w
 template zyyz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[1], a2[2])
 func `zyyz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[1] = b2.z; a[2] = b2.w
 template zyyw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[1], a2[3])
 func `zyyw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[1] = b2.z; a[3] = b2.w
 template zyzx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[2], a2[0])
 func `zyzx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[2] = b2.z; a[0] = b2.w
 template zyzy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[2], a2[1])
 func `zyzy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[2] = b2.z; a[1] = b2.w
 template zyzz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[2], a2[2])
 func `zyzz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[2] = b2.z; a[2] = b2.w
 template zyzw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[2], a2[3])
 func `zyzw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[2] = b2.z; a[3] = b2.w
 template zywx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[3], a2[0])
 func `zywx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[3] = b2.z; a[0] = b2.w
 template zywy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[3], a2[1])
 func `zywy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[3] = b2.z; a[1] = b2.w
 template zywz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[3], a2[2])
 func `zywz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[3] = b2.z; a[2] = b2.w
 template zyww*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[3], a2[3])
 func `zyww=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[3] = b2.z; a[3] = b2.w
 template zzxx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[0], a2[0])
 func `zzxx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[0] = b2.z; a[0] = b2.w
 template zzxy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[0], a2[1])
 func `zzxy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[0] = b2.z; a[1] = b2.w
 template zzxz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[0], a2[2])
 func `zzxz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[0] = b2.z; a[2] = b2.w
 template zzxw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[0], a2[3])
 func `zzxw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[0] = b2.z; a[3] = b2.w
 template zzyx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[1], a2[0])
 func `zzyx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[1] = b2.z; a[0] = b2.w
 template zzyy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[1], a2[1])
 func `zzyy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[1] = b2.z; a[1] = b2.w
 template zzyz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[1], a2[2])
 func `zzyz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[1] = b2.z; a[2] = b2.w
 template zzyw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[1], a2[3])
 func `zzyw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[1] = b2.z; a[3] = b2.w
 template zzzx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[2], a2[0])
 func `zzzx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[2] = b2.z; a[0] = b2.w
 template zzzy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[2], a2[1])
 func `zzzy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[2] = b2.z; a[1] = b2.w
 template zzzz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[2], a2[2])
 func `zzzz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[2] = b2.z; a[2] = b2.w
 template zzzw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[2], a2[3])
 func `zzzw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[2] = b2.z; a[3] = b2.w
 template zzwx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[3], a2[0])
 func `zzwx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[3] = b2.z; a[0] = b2.w
 template zzwy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[3], a2[1])
 func `zzwy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[3] = b2.z; a[1] = b2.w
 template zzwz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[3], a2[2])
 func `zzwz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[3] = b2.z; a[2] = b2.w
 template zzww*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[3], a2[3])
 func `zzww=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[3] = b2.z; a[3] = b2.w
 template zwxx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[0], a2[0])
 func `zwxx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[0] = b2.z; a[0] = b2.w
 template zwxy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[0], a2[1])
 func `zwxy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[0] = b2.z; a[1] = b2.w
 template zwxz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[0], a2[2])
 func `zwxz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[0] = b2.z; a[2] = b2.w
 template zwxw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[0], a2[3])
 func `zwxw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[0] = b2.z; a[3] = b2.w
 template zwyx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[1], a2[0])
 func `zwyx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[1] = b2.z; a[0] = b2.w
 template zwyy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[1], a2[1])
 func `zwyy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[1] = b2.z; a[1] = b2.w
 template zwyz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[1], a2[2])
 func `zwyz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[1] = b2.z; a[2] = b2.w
 template zwyw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[1], a2[3])
 func `zwyw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[1] = b2.z; a[3] = b2.w
 template zwzx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[2], a2[0])
 func `zwzx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[2] = b2.z; a[0] = b2.w
 template zwzy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[2], a2[1])
 func `zwzy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[2] = b2.z; a[1] = b2.w
 template zwzz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[2], a2[2])
 func `zwzz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[2] = b2.z; a[2] = b2.w
 template zwzw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[2], a2[3])
 func `zwzw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[2] = b2.z; a[3] = b2.w
 template zwwx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[3], a2[0])
 func `zwwx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[3] = b2.z; a[0] = b2.w
 template zwwy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[3], a2[1])
 func `zwwy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[3] = b2.z; a[1] = b2.w
 template zwwz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[3], a2[2])
 func `zwwz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[3] = b2.z; a[2] = b2.w
 template zwww*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[3], a2[3])
 func `zwww=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[3] = b2.z; a[3] = b2.w
 template wxxx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[0], a2[0])
 func `wxxx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[0] = b2.z; a[0] = b2.w
 template wxxy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[0], a2[1])
 func `wxxy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[0] = b2.z; a[1] = b2.w
 template wxxz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[0], a2[2])
 func `wxxz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[0] = b2.z; a[2] = b2.w
 template wxxw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[0], a2[3])
 func `wxxw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[0] = b2.z; a[3] = b2.w
 template wxyx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[1], a2[0])
 func `wxyx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[1] = b2.z; a[0] = b2.w
 template wxyy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[1], a2[1])
 func `wxyy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[1] = b2.z; a[1] = b2.w
 template wxyz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[1], a2[2])
 func `wxyz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[1] = b2.z; a[2] = b2.w
 template wxyw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[1], a2[3])
 func `wxyw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[1] = b2.z; a[3] = b2.w
 template wxzx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[2], a2[0])
 func `wxzx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[2] = b2.z; a[0] = b2.w
 template wxzy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[2], a2[1])
 func `wxzy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[2] = b2.z; a[1] = b2.w
 template wxzz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[2], a2[2])
 func `wxzz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[2] = b2.z; a[2] = b2.w
 template wxzw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[2], a2[3])
 func `wxzw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[2] = b2.z; a[3] = b2.w
 template wxwx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[3], a2[0])
 func `wxwx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[3] = b2.z; a[0] = b2.w
 template wxwy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[3], a2[1])
 func `wxwy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[3] = b2.z; a[1] = b2.w
 template wxwz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[3], a2[2])
 func `wxwz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[3] = b2.z; a[2] = b2.w
 template wxww*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[3], a2[3])
 func `wxww=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[3] = b2.z; a[3] = b2.w
 template wyxx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[0], a2[0])
 func `wyxx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[0] = b2.z; a[0] = b2.w
 template wyxy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[0], a2[1])
 func `wyxy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[0] = b2.z; a[1] = b2.w
 template wyxz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[0], a2[2])
 func `wyxz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[0] = b2.z; a[2] = b2.w
 template wyxw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[0], a2[3])
 func `wyxw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[0] = b2.z; a[3] = b2.w
 template wyyx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[1], a2[0])
 func `wyyx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[1] = b2.z; a[0] = b2.w
 template wyyy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[1], a2[1])
 func `wyyy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[1] = b2.z; a[1] = b2.w
 template wyyz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[1], a2[2])
 func `wyyz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[1] = b2.z; a[2] = b2.w
 template wyyw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[1], a2[3])
 func `wyyw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[1] = b2.z; a[3] = b2.w
 template wyzx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[2], a2[0])
 func `wyzx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[2] = b2.z; a[0] = b2.w
 template wyzy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[2], a2[1])
 func `wyzy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[2] = b2.z; a[1] = b2.w
 template wyzz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[2], a2[2])
 func `wyzz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[2] = b2.z; a[2] = b2.w
 template wyzw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[2], a2[3])
 func `wyzw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[2] = b2.z; a[3] = b2.w
 template wywx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[3], a2[0])
 func `wywx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[3] = b2.z; a[0] = b2.w
 template wywy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[3], a2[1])
 func `wywy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[3] = b2.z; a[1] = b2.w
 template wywz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[3], a2[2])
 func `wywz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[3] = b2.z; a[2] = b2.w
 template wyww*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[3], a2[3])
 func `wyww=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[3] = b2.z; a[3] = b2.w
 template wzxx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[0], a2[0])
 func `wzxx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[0] = b2.z; a[0] = b2.w
 template wzxy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[0], a2[1])
 func `wzxy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[0] = b2.z; a[1] = b2.w
 template wzxz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[0], a2[2])
 func `wzxz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[0] = b2.z; a[2] = b2.w
 template wzxw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[0], a2[3])
 func `wzxw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[0] = b2.z; a[3] = b2.w
 template wzyx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[1], a2[0])
 func `wzyx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[1] = b2.z; a[0] = b2.w
 template wzyy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[1], a2[1])
 func `wzyy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[1] = b2.z; a[1] = b2.w
 template wzyz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[1], a2[2])
 func `wzyz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[1] = b2.z; a[2] = b2.w
 template wzyw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[1], a2[3])
 func `wzyw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[1] = b2.z; a[3] = b2.w
 template wzzx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[2], a2[0])
 func `wzzx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[2] = b2.z; a[0] = b2.w
 template wzzy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[2], a2[1])
 func `wzzy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[2] = b2.z; a[1] = b2.w
 template wzzz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[2], a2[2])
 func `wzzz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[2] = b2.z; a[2] = b2.w
 template wzzw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[2], a2[3])
 func `wzzw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[2] = b2.z; a[3] = b2.w
 template wzwx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[3], a2[0])
 func `wzwx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[3] = b2.z; a[0] = b2.w
 template wzwy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[3], a2[1])
 func `wzwy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[3] = b2.z; a[1] = b2.w
 template wzwz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[3], a2[2])
 func `wzwz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[3] = b2.z; a[2] = b2.w
 template wzww*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[3], a2[3])
 func `wzww=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[3] = b2.z; a[3] = b2.w
 template wwxx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[0], a2[0])
 func `wwxx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[0] = b2.z; a[0] = b2.w
 template wwxy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[0], a2[1])
 func `wwxy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[0] = b2.z; a[1] = b2.w
 template wwxz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[0], a2[2])
 func `wwxz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[0] = b2.z; a[2] = b2.w
 template wwxw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[0], a2[3])
 func `wwxw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[0] = b2.z; a[3] = b2.w
 template wwyx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[1], a2[0])
 func `wwyx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[1] = b2.z; a[0] = b2.w
 template wwyy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[1], a2[1])
 func `wwyy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[1] = b2.z; a[1] = b2.w
 template wwyz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[1], a2[2])
 func `wwyz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[1] = b2.z; a[2] = b2.w
 template wwyw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[1], a2[3])
 func `wwyw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[1] = b2.z; a[3] = b2.w
 template wwzx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[2], a2[0])
 func `wwzx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[2] = b2.z; a[0] = b2.w
 template wwzy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[2], a2[1])
 func `wwzy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[2] = b2.z; a[1] = b2.w
 template wwzz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[2], a2[2])
 func `wwzz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[2] = b2.z; a[2] = b2.w
 template wwzw*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[2], a2[3])
 func `wwzw=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[2] = b2.z; a[3] = b2.w
 template wwwx*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[3], a2[0])
 func `wwwx=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[3] = b2.z; a[0] = b2.w
 template wwwy*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[3], a2[1])
 func `wwwy=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[3] = b2.z; a[1] = b2.w
 template wwwz*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[3], a2[2])
 func `wwwz=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[3] = b2.z; a[2] = b2.w
 template wwww*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[3], a2[3])
 func `wwww=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[3] = b2.z; a[3] = b2.w
 
 # 4 x rgba
 template rrrr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[0], a2[0])
 func `rrrr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[0] = b2.z; a[0] = b2.w
 template rrrg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[0], a2[1])
 func `rrrg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[0] = b2.z; a[1] = b2.w
 template rrrb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[0], a2[2])
 func `rrrb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[0] = b2.z; a[2] = b2.w
 template rrra*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[0], a2[3])
 func `rrra=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[0] = b2.z; a[3] = b2.w
 template rrgr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[1], a2[0])
 func `rrgr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[1] = b2.z; a[0] = b2.w
 template rrgg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[1], a2[1])
 func `rrgg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[1] = b2.z; a[1] = b2.w
 template rrgb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[1], a2[2])
 func `rrgb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[1] = b2.z; a[2] = b2.w
 template rrga*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[1], a2[3])
 func `rrga=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[1] = b2.z; a[3] = b2.w
 template rrbr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[2], a2[0])
 func `rrbr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[2] = b2.z; a[0] = b2.w
 template rrbg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[2], a2[1])
 func `rrbg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[2] = b2.z; a[1] = b2.w
 template rrbb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[2], a2[2])
 func `rrbb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[2] = b2.z; a[2] = b2.w
 template rrba*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[2], a2[3])
 func `rrba=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[2] = b2.z; a[3] = b2.w
 template rrar*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[3], a2[0])
 func `rrar=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[3] = b2.z; a[0] = b2.w
 template rrag*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[3], a2[1])
 func `rrag=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[3] = b2.z; a[1] = b2.w
 template rrab*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[3], a2[2])
 func `rrab=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[3] = b2.z; a[2] = b2.w
 template rraa*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[3], a2[3])
 func `rraa=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[3] = b2.z; a[3] = b2.w
 template rgrr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[0], a2[0])
 func `rgrr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[0] = b2.z; a[0] = b2.w
 template rgrg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[0], a2[1])
 func `rgrg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[0] = b2.z; a[1] = b2.w
 template rgrb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[0], a2[2])
 func `rgrb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[0] = b2.z; a[2] = b2.w
 template rgra*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[0], a2[3])
 func `rgra=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[0] = b2.z; a[3] = b2.w
 template rggr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[1], a2[0])
 func `rggr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[1] = b2.z; a[0] = b2.w
 template rggg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[1], a2[1])
 func `rggg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[1] = b2.z; a[1] = b2.w
 template rggb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[1], a2[2])
 func `rggb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[1] = b2.z; a[2] = b2.w
 template rgga*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[1], a2[3])
 func `rgga=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[1] = b2.z; a[3] = b2.w
 template rgbr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[2], a2[0])
 func `rgbr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[2] = b2.z; a[0] = b2.w
 template rgbg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[2], a2[1])
 func `rgbg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[2] = b2.z; a[1] = b2.w
 template rgbb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[2], a2[2])
 func `rgbb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[2] = b2.z; a[2] = b2.w
 template rgba*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[2], a2[3])
 func `rgba=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[2] = b2.z; a[3] = b2.w
 template rgar*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[3], a2[0])
 func `rgar=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[3] = b2.z; a[0] = b2.w
 template rgag*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[3], a2[1])
 func `rgag=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[3] = b2.z; a[1] = b2.w
 template rgab*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[3], a2[2])
 func `rgab=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[3] = b2.z; a[2] = b2.w
 template rgaa*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[3], a2[3])
 func `rgaa=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[3] = b2.z; a[3] = b2.w
 template rbrr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[0], a2[0])
 func `rbrr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[0] = b2.z; a[0] = b2.w
 template rbrg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[0], a2[1])
 func `rbrg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[0] = b2.z; a[1] = b2.w
 template rbrb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[0], a2[2])
 func `rbrb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[0] = b2.z; a[2] = b2.w
 template rbra*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[0], a2[3])
 func `rbra=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[0] = b2.z; a[3] = b2.w
 template rbgr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[1], a2[0])
 func `rbgr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[1] = b2.z; a[0] = b2.w
 template rbgg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[1], a2[1])
 func `rbgg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[1] = b2.z; a[1] = b2.w
 template rbgb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[1], a2[2])
 func `rbgb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[1] = b2.z; a[2] = b2.w
 template rbga*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[1], a2[3])
 func `rbga=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[1] = b2.z; a[3] = b2.w
 template rbbr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[2], a2[0])
 func `rbbr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[2] = b2.z; a[0] = b2.w
 template rbbg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[2], a2[1])
 func `rbbg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[2] = b2.z; a[1] = b2.w
 template rbbb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[2], a2[2])
 func `rbbb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[2] = b2.z; a[2] = b2.w
 template rbba*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[2], a2[3])
 func `rbba=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[2] = b2.z; a[3] = b2.w
 template rbar*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[3], a2[0])
 func `rbar=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[3] = b2.z; a[0] = b2.w
 template rbag*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[3], a2[1])
 func `rbag=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[3] = b2.z; a[1] = b2.w
 template rbab*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[3], a2[2])
 func `rbab=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[3] = b2.z; a[2] = b2.w
 template rbaa*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[3], a2[3])
 func `rbaa=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[3] = b2.z; a[3] = b2.w
 template rarr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[0], a2[0])
 func `rarr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[0] = b2.z; a[0] = b2.w
 template rarg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[0], a2[1])
 func `rarg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[0] = b2.z; a[1] = b2.w
 template rarb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[0], a2[2])
 func `rarb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[0] = b2.z; a[2] = b2.w
 template rara*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[0], a2[3])
 func `rara=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[0] = b2.z; a[3] = b2.w
 template ragr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[1], a2[0])
 func `ragr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[1] = b2.z; a[0] = b2.w
 template ragg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[1], a2[1])
 func `ragg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[1] = b2.z; a[1] = b2.w
 template ragb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[1], a2[2])
 func `ragb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[1] = b2.z; a[2] = b2.w
 template raga*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[1], a2[3])
 func `raga=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[1] = b2.z; a[3] = b2.w
 template rabr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[2], a2[0])
 func `rabr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[2] = b2.z; a[0] = b2.w
 template rabg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[2], a2[1])
 func `rabg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[2] = b2.z; a[1] = b2.w
 template rabb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[2], a2[2])
 func `rabb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[2] = b2.z; a[2] = b2.w
 template raba*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[2], a2[3])
 func `raba=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[2] = b2.z; a[3] = b2.w
 template raar*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[3], a2[0])
 func `raar=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[3] = b2.z; a[0] = b2.w
 template raag*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[3], a2[1])
 func `raag=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[3] = b2.z; a[1] = b2.w
 template raab*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[3], a2[2])
 func `raab=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[3] = b2.z; a[2] = b2.w
 template raaa*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[3], a2[3])
 func `raaa=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[3] = b2.z; a[3] = b2.w
 template grrr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[0], a2[0])
 func `grrr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[0] = b2.z; a[0] = b2.w
 template grrg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[0], a2[1])
 func `grrg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[0] = b2.z; a[1] = b2.w
 template grrb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[0], a2[2])
 func `grrb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[0] = b2.z; a[2] = b2.w
 template grra*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[0], a2[3])
 func `grra=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[0] = b2.z; a[3] = b2.w
 template grgr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[1], a2[0])
 func `grgr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[1] = b2.z; a[0] = b2.w
 template grgg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[1], a2[1])
 func `grgg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[1] = b2.z; a[1] = b2.w
 template grgb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[1], a2[2])
 func `grgb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[1] = b2.z; a[2] = b2.w
 template grga*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[1], a2[3])
 func `grga=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[1] = b2.z; a[3] = b2.w
 template grbr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[2], a2[0])
 func `grbr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[2] = b2.z; a[0] = b2.w
 template grbg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[2], a2[1])
 func `grbg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[2] = b2.z; a[1] = b2.w
 template grbb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[2], a2[2])
 func `grbb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[2] = b2.z; a[2] = b2.w
 template grba*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[2], a2[3])
 func `grba=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[2] = b2.z; a[3] = b2.w
 template grar*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[3], a2[0])
 func `grar=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[3] = b2.z; a[0] = b2.w
 template grag*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[3], a2[1])
 func `grag=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[3] = b2.z; a[1] = b2.w
 template grab*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[3], a2[2])
 func `grab=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[3] = b2.z; a[2] = b2.w
 template graa*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[3], a2[3])
 func `graa=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[3] = b2.z; a[3] = b2.w
 template ggrr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[0], a2[0])
 func `ggrr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[0] = b2.z; a[0] = b2.w
 template ggrg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[0], a2[1])
 func `ggrg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[0] = b2.z; a[1] = b2.w
 template ggrb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[0], a2[2])
 func `ggrb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[0] = b2.z; a[2] = b2.w
 template ggra*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[0], a2[3])
 func `ggra=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[0] = b2.z; a[3] = b2.w
 template gggr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[1], a2[0])
 func `gggr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[1] = b2.z; a[0] = b2.w
 template gggg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[1], a2[1])
 func `gggg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[1] = b2.z; a[1] = b2.w
 template gggb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[1], a2[2])
 func `gggb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[1] = b2.z; a[2] = b2.w
 template ggga*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[1], a2[3])
 func `ggga=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[1] = b2.z; a[3] = b2.w
 template ggbr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[2], a2[0])
 func `ggbr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[2] = b2.z; a[0] = b2.w
 template ggbg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[2], a2[1])
 func `ggbg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[2] = b2.z; a[1] = b2.w
 template ggbb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[2], a2[2])
 func `ggbb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[2] = b2.z; a[2] = b2.w
 template ggba*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[2], a2[3])
 func `ggba=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[2] = b2.z; a[3] = b2.w
 template ggar*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[3], a2[0])
 func `ggar=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[3] = b2.z; a[0] = b2.w
 template ggag*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[3], a2[1])
 func `ggag=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[3] = b2.z; a[1] = b2.w
 template ggab*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[3], a2[2])
 func `ggab=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[3] = b2.z; a[2] = b2.w
 template ggaa*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[3], a2[3])
 func `ggaa=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[3] = b2.z; a[3] = b2.w
 template gbrr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[0], a2[0])
 func `gbrr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[0] = b2.z; a[0] = b2.w
 template gbrg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[0], a2[1])
 func `gbrg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[0] = b2.z; a[1] = b2.w
 template gbrb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[0], a2[2])
 func `gbrb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[0] = b2.z; a[2] = b2.w
 template gbra*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[0], a2[3])
 func `gbra=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[0] = b2.z; a[3] = b2.w
 template gbgr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[1], a2[0])
 func `gbgr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[1] = b2.z; a[0] = b2.w
 template gbgg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[1], a2[1])
 func `gbgg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[1] = b2.z; a[1] = b2.w
 template gbgb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[1], a2[2])
 func `gbgb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[1] = b2.z; a[2] = b2.w
 template gbga*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[1], a2[3])
 func `gbga=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[1] = b2.z; a[3] = b2.w
 template gbbr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[2], a2[0])
 func `gbbr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[2] = b2.z; a[0] = b2.w
 template gbbg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[2], a2[1])
 func `gbbg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[2] = b2.z; a[1] = b2.w
 template gbbb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[2], a2[2])
 func `gbbb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[2] = b2.z; a[2] = b2.w
 template gbba*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[2], a2[3])
 func `gbba=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[2] = b2.z; a[3] = b2.w
 template gbar*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[3], a2[0])
 func `gbar=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[3] = b2.z; a[0] = b2.w
 template gbag*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[3], a2[1])
 func `gbag=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[3] = b2.z; a[1] = b2.w
 template gbab*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[3], a2[2])
 func `gbab=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[3] = b2.z; a[2] = b2.w
 template gbaa*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[3], a2[3])
 func `gbaa=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[3] = b2.z; a[3] = b2.w
 template garr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[0], a2[0])
 func `garr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[0] = b2.z; a[0] = b2.w
 template garg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[0], a2[1])
 func `garg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[0] = b2.z; a[1] = b2.w
 template garb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[0], a2[2])
 func `garb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[0] = b2.z; a[2] = b2.w
 template gara*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[0], a2[3])
 func `gara=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[0] = b2.z; a[3] = b2.w
 template gagr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[1], a2[0])
 func `gagr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[1] = b2.z; a[0] = b2.w
 template gagg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[1], a2[1])
 func `gagg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[1] = b2.z; a[1] = b2.w
 template gagb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[1], a2[2])
 func `gagb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[1] = b2.z; a[2] = b2.w
 template gaga*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[1], a2[3])
 func `gaga=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[1] = b2.z; a[3] = b2.w
 template gabr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[2], a2[0])
 func `gabr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[2] = b2.z; a[0] = b2.w
 template gabg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[2], a2[1])
 func `gabg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[2] = b2.z; a[1] = b2.w
 template gabb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[2], a2[2])
 func `gabb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[2] = b2.z; a[2] = b2.w
 template gaba*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[2], a2[3])
 func `gaba=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[2] = b2.z; a[3] = b2.w
 template gaar*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[3], a2[0])
 func `gaar=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[3] = b2.z; a[0] = b2.w
 template gaag*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[3], a2[1])
 func `gaag=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[3] = b2.z; a[1] = b2.w
 template gaab*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[3], a2[2])
 func `gaab=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[3] = b2.z; a[2] = b2.w
 template gaaa*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[3], a2[3])
 func `gaaa=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[3] = b2.z; a[3] = b2.w
 template brrr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[0], a2[0])
 func `brrr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[0] = b2.z; a[0] = b2.w
 template brrg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[0], a2[1])
 func `brrg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[0] = b2.z; a[1] = b2.w
 template brrb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[0], a2[2])
 func `brrb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[0] = b2.z; a[2] = b2.w
 template brra*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[0], a2[3])
 func `brra=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[0] = b2.z; a[3] = b2.w
 template brgr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[1], a2[0])
 func `brgr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[1] = b2.z; a[0] = b2.w
 template brgg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[1], a2[1])
 func `brgg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[1] = b2.z; a[1] = b2.w
 template brgb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[1], a2[2])
 func `brgb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[1] = b2.z; a[2] = b2.w
 template brga*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[1], a2[3])
 func `brga=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[1] = b2.z; a[3] = b2.w
 template brbr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[2], a2[0])
 func `brbr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[2] = b2.z; a[0] = b2.w
 template brbg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[2], a2[1])
 func `brbg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[2] = b2.z; a[1] = b2.w
 template brbb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[2], a2[2])
 func `brbb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[2] = b2.z; a[2] = b2.w
 template brba*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[2], a2[3])
 func `brba=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[2] = b2.z; a[3] = b2.w
 template brar*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[3], a2[0])
 func `brar=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[3] = b2.z; a[0] = b2.w
 template brag*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[3], a2[1])
 func `brag=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[3] = b2.z; a[1] = b2.w
 template brab*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[3], a2[2])
 func `brab=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[3] = b2.z; a[2] = b2.w
 template braa*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[3], a2[3])
 func `braa=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[3] = b2.z; a[3] = b2.w
 template bgrr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[0], a2[0])
 func `bgrr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[0] = b2.z; a[0] = b2.w
 template bgrg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[0], a2[1])
 func `bgrg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[0] = b2.z; a[1] = b2.w
 template bgrb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[0], a2[2])
 func `bgrb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[0] = b2.z; a[2] = b2.w
 template bgra*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[0], a2[3])
 func `bgra=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[0] = b2.z; a[3] = b2.w
 template bggr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[1], a2[0])
 func `bggr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[1] = b2.z; a[0] = b2.w
 template bggg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[1], a2[1])
 func `bggg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[1] = b2.z; a[1] = b2.w
 template bggb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[1], a2[2])
 func `bggb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[1] = b2.z; a[2] = b2.w
 template bgga*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[1], a2[3])
 func `bgga=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[1] = b2.z; a[3] = b2.w
 template bgbr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[2], a2[0])
 func `bgbr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[2] = b2.z; a[0] = b2.w
 template bgbg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[2], a2[1])
 func `bgbg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[2] = b2.z; a[1] = b2.w
 template bgbb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[2], a2[2])
 func `bgbb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[2] = b2.z; a[2] = b2.w
 template bgba*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[2], a2[3])
 func `bgba=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[2] = b2.z; a[3] = b2.w
 template bgar*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[3], a2[0])
 func `bgar=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[3] = b2.z; a[0] = b2.w
 template bgag*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[3], a2[1])
 func `bgag=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[3] = b2.z; a[1] = b2.w
 template bgab*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[3], a2[2])
 func `bgab=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[3] = b2.z; a[2] = b2.w
 template bgaa*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[3], a2[3])
 func `bgaa=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[3] = b2.z; a[3] = b2.w
 template bbrr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[0], a2[0])
 func `bbrr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[0] = b2.z; a[0] = b2.w
 template bbrg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[0], a2[1])
 func `bbrg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[0] = b2.z; a[1] = b2.w
 template bbrb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[0], a2[2])
 func `bbrb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[0] = b2.z; a[2] = b2.w
 template bbra*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[0], a2[3])
 func `bbra=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[0] = b2.z; a[3] = b2.w
 template bbgr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[1], a2[0])
 func `bbgr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[1] = b2.z; a[0] = b2.w
 template bbgg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[1], a2[1])
 func `bbgg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[1] = b2.z; a[1] = b2.w
 template bbgb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[1], a2[2])
 func `bbgb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[1] = b2.z; a[2] = b2.w
 template bbga*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[1], a2[3])
 func `bbga=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[1] = b2.z; a[3] = b2.w
 template bbbr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[2], a2[0])
 func `bbbr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[2] = b2.z; a[0] = b2.w
 template bbbg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[2], a2[1])
 func `bbbg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[2] = b2.z; a[1] = b2.w
 template bbbb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[2], a2[2])
 func `bbbb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[2] = b2.z; a[2] = b2.w
 template bbba*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[2], a2[3])
 func `bbba=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[2] = b2.z; a[3] = b2.w
 template bbar*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[3], a2[0])
 func `bbar=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[3] = b2.z; a[0] = b2.w
 template bbag*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[3], a2[1])
 func `bbag=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[3] = b2.z; a[1] = b2.w
 template bbab*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[3], a2[2])
 func `bbab=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[3] = b2.z; a[2] = b2.w
 template bbaa*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[3], a2[3])
 func `bbaa=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[3] = b2.z; a[3] = b2.w
 template barr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[0], a2[0])
 func `barr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[0] = b2.z; a[0] = b2.w
 template barg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[0], a2[1])
 func `barg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[0] = b2.z; a[1] = b2.w
 template barb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[0], a2[2])
 func `barb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[0] = b2.z; a[2] = b2.w
 template bara*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[0], a2[3])
 func `bara=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[0] = b2.z; a[3] = b2.w
 template bagr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[1], a2[0])
 func `bagr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[1] = b2.z; a[0] = b2.w
 template bagg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[1], a2[1])
 func `bagg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[1] = b2.z; a[1] = b2.w
 template bagb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[1], a2[2])
 func `bagb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[1] = b2.z; a[2] = b2.w
 template baga*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[1], a2[3])
 func `baga=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[1] = b2.z; a[3] = b2.w
 template babr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[2], a2[0])
 func `babr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[2] = b2.z; a[0] = b2.w
 template babg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[2], a2[1])
 func `babg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[2] = b2.z; a[1] = b2.w
 template babb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[2], a2[2])
 func `babb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[2] = b2.z; a[2] = b2.w
 template baba*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[2], a2[3])
 func `baba=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[2] = b2.z; a[3] = b2.w
 template baar*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[3], a2[0])
 func `baar=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[3] = b2.z; a[0] = b2.w
 template baag*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[3], a2[1])
 func `baag=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[3] = b2.z; a[1] = b2.w
 template baab*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[3], a2[2])
 func `baab=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[3] = b2.z; a[2] = b2.w
 template baaa*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[3], a2[3])
 func `baaa=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[3] = b2.z; a[3] = b2.w
 template arrr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[0], a2[0])
 func `arrr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[0] = b2.z; a[0] = b2.w
 template arrg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[0], a2[1])
 func `arrg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[0] = b2.z; a[1] = b2.w
 template arrb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[0], a2[2])
 func `arrb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[0] = b2.z; a[2] = b2.w
 template arra*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[0], a2[3])
 func `arra=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[0] = b2.z; a[3] = b2.w
 template argr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[1], a2[0])
 func `argr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[1] = b2.z; a[0] = b2.w
 template argg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[1], a2[1])
 func `argg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[1] = b2.z; a[1] = b2.w
 template argb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[1], a2[2])
 func `argb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[1] = b2.z; a[2] = b2.w
 template arga*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[1], a2[3])
 func `arga=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[1] = b2.z; a[3] = b2.w
 template arbr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[2], a2[0])
 func `arbr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[2] = b2.z; a[0] = b2.w
 template arbg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[2], a2[1])
 func `arbg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[2] = b2.z; a[1] = b2.w
 template arbb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[2], a2[2])
 func `arbb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[2] = b2.z; a[2] = b2.w
 template arba*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[2], a2[3])
 func `arba=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[2] = b2.z; a[3] = b2.w
 template arar*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[3], a2[0])
 func `arar=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[3] = b2.z; a[0] = b2.w
 template arag*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[3], a2[1])
 func `arag=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[3] = b2.z; a[1] = b2.w
 template arab*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[3], a2[2])
 func `arab=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[3] = b2.z; a[2] = b2.w
 template araa*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[3], a2[3])
 func `araa=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[3] = b2.z; a[3] = b2.w
 template agrr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[0], a2[0])
 func `agrr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[0] = b2.z; a[0] = b2.w
 template agrg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[0], a2[1])
 func `agrg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[0] = b2.z; a[1] = b2.w
 template agrb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[0], a2[2])
 func `agrb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[0] = b2.z; a[2] = b2.w
 template agra*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[0], a2[3])
 func `agra=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[0] = b2.z; a[3] = b2.w
 template aggr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[1], a2[0])
 func `aggr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[1] = b2.z; a[0] = b2.w
 template aggg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[1], a2[1])
 func `aggg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[1] = b2.z; a[1] = b2.w
 template aggb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[1], a2[2])
 func `aggb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[1] = b2.z; a[2] = b2.w
 template agga*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[1], a2[3])
 func `agga=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[1] = b2.z; a[3] = b2.w
 template agbr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[2], a2[0])
 func `agbr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[2] = b2.z; a[0] = b2.w
 template agbg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[2], a2[1])
 func `agbg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[2] = b2.z; a[1] = b2.w
 template agbb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[2], a2[2])
 func `agbb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[2] = b2.z; a[2] = b2.w
 template agba*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[2], a2[3])
 func `agba=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[2] = b2.z; a[3] = b2.w
 template agar*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[3], a2[0])
 func `agar=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[3] = b2.z; a[0] = b2.w
 template agag*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[3], a2[1])
 func `agag=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[3] = b2.z; a[1] = b2.w
 template agab*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[3], a2[2])
 func `agab=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[3] = b2.z; a[2] = b2.w
 template agaa*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[3], a2[3])
 func `agaa=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[3] = b2.z; a[3] = b2.w
 template abrr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[0], a2[0])
 func `abrr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[0] = b2.z; a[0] = b2.w
 template abrg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[0], a2[1])
 func `abrg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[0] = b2.z; a[1] = b2.w
 template abrb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[0], a2[2])
 func `abrb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[0] = b2.z; a[2] = b2.w
 template abra*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[0], a2[3])
 func `abra=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[0] = b2.z; a[3] = b2.w
 template abgr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[1], a2[0])
 func `abgr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[1] = b2.z; a[0] = b2.w
 template abgg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[1], a2[1])
 func `abgg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[1] = b2.z; a[1] = b2.w
 template abgb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[1], a2[2])
 func `abgb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[1] = b2.z; a[2] = b2.w
 template abga*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[1], a2[3])
 func `abga=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[1] = b2.z; a[3] = b2.w
 template abbr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[2], a2[0])
 func `abbr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[2] = b2.z; a[0] = b2.w
 template abbg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[2], a2[1])
 func `abbg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[2] = b2.z; a[1] = b2.w
 template abbb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[2], a2[2])
 func `abbb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[2] = b2.z; a[2] = b2.w
 template abba*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[2], a2[3])
 func `abba=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[2] = b2.z; a[3] = b2.w
 template abar*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[3], a2[0])
 func `abar=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[3] = b2.z; a[0] = b2.w
 template abag*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[3], a2[1])
 func `abag=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[3] = b2.z; a[1] = b2.w
 template abab*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[3], a2[2])
 func `abab=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[3] = b2.z; a[2] = b2.w
 template abaa*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[3], a2[3])
 func `abaa=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[3] = b2.z; a[3] = b2.w
 template aarr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[0], a2[0])
 func `aarr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[0] = b2.z; a[0] = b2.w
 template aarg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[0], a2[1])
 func `aarg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[0] = b2.z; a[1] = b2.w
 template aarb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[0], a2[2])
 func `aarb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[0] = b2.z; a[2] = b2.w
 template aara*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[0], a2[3])
 func `aara=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[0] = b2.z; a[3] = b2.w
 template aagr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[1], a2[0])
 func `aagr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[1] = b2.z; a[0] = b2.w
 template aagg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[1], a2[1])
 func `aagg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[1] = b2.z; a[1] = b2.w
 template aagb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[1], a2[2])
 func `aagb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[1] = b2.z; a[2] = b2.w
 template aaga*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[1], a2[3])
 func `aaga=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[1] = b2.z; a[3] = b2.w
 template aabr*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[2], a2[0])
 func `aabr=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[2] = b2.z; a[0] = b2.w
 template aabg*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[2], a2[1])
 func `aabg=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[2] = b2.z; a[1] = b2.w
 template aabb*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[2], a2[2])
 func `aabb=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[2] = b2.z; a[2] = b2.w
 template aaba*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[2], a2[3])
 func `aaba=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[2] = b2.z; a[3] = b2.w
 template aaar*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[3], a2[0])
 func `aaar=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[3] = b2.z; a[0] = b2.w
 template aaag*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[3], a2[1])
 func `aaag=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[3] = b2.z; a[1] = b2.w
 template aaab*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[3], a2[2])
 func `aaab=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[3] = b2.z; a[2] = b2.w
 template aaaa*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[3], a2[3])
 func `aaaa=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[3] = b2.z; a[3] = b2.w
 
 # 4 x stpq
 template ssss*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[0], a2[0])
 func `ssss=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[0] = b2.z; a[0] = b2.w
 template ssst*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[0], a2[1])
 func `ssst=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[0] = b2.z; a[1] = b2.w
 template sssp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[0], a2[2])
 func `sssp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[0] = b2.z; a[2] = b2.w
 template sssq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[0], a2[3])
 func `sssq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[0] = b2.z; a[3] = b2.w
 template ssts*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[1], a2[0])
 func `ssts=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[1] = b2.z; a[0] = b2.w
 template sstt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[1], a2[1])
 func `sstt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[1] = b2.z; a[1] = b2.w
 template sstp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[1], a2[2])
 func `sstp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[1] = b2.z; a[2] = b2.w
 template sstq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[1], a2[3])
 func `sstq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[1] = b2.z; a[3] = b2.w
 template ssps*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[2], a2[0])
 func `ssps=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[2] = b2.z; a[0] = b2.w
 template sspt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[2], a2[1])
 func `sspt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[2] = b2.z; a[1] = b2.w
 template sspp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[2], a2[2])
 func `sspp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[2] = b2.z; a[2] = b2.w
 template sspq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[2], a2[3])
 func `sspq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[2] = b2.z; a[3] = b2.w
 template ssqs*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[3], a2[0])
 func `ssqs=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[3] = b2.z; a[0] = b2.w
 template ssqt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[3], a2[1])
 func `ssqt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[3] = b2.z; a[1] = b2.w
 template ssqp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[3], a2[2])
 func `ssqp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[3] = b2.z; a[2] = b2.w
 template ssqq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[0], a2[3], a2[3])
 func `ssqq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[0] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[0] = b2.y; a[3] = b2.z; a[3] = b2.w
 template stss*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[0], a2[0])
 func `stss=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[0] = b2.z; a[0] = b2.w
 template stst*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[0], a2[1])
 func `stst=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[0] = b2.z; a[1] = b2.w
 template stsp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[0], a2[2])
 func `stsp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[0] = b2.z; a[2] = b2.w
 template stsq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[0], a2[3])
 func `stsq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[0] = b2.z; a[3] = b2.w
 template stts*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[1], a2[0])
 func `stts=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[1] = b2.z; a[0] = b2.w
 template sttt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[1], a2[1])
 func `sttt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[1] = b2.z; a[1] = b2.w
 template sttp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[1], a2[2])
 func `sttp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[1] = b2.z; a[2] = b2.w
 template sttq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[1], a2[3])
 func `sttq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[1] = b2.z; a[3] = b2.w
 template stps*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[2], a2[0])
 func `stps=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[2] = b2.z; a[0] = b2.w
 template stpt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[2], a2[1])
 func `stpt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[2] = b2.z; a[1] = b2.w
 template stpp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[2], a2[2])
 func `stpp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[2] = b2.z; a[2] = b2.w
 template stpq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[2], a2[3])
 func `stpq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[2] = b2.z; a[3] = b2.w
 template stqs*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[3], a2[0])
 func `stqs=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[3] = b2.z; a[0] = b2.w
 template stqt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[3], a2[1])
 func `stqt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[3] = b2.z; a[1] = b2.w
 template stqp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[3], a2[2])
 func `stqp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[3] = b2.z; a[2] = b2.w
 template stqq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[1], a2[3], a2[3])
 func `stqq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[1] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[1] = b2.y; a[3] = b2.z; a[3] = b2.w
 template spss*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[0], a2[0])
 func `spss=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[0] = b2.z; a[0] = b2.w
 template spst*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[0], a2[1])
 func `spst=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[0] = b2.z; a[1] = b2.w
 template spsp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[0], a2[2])
 func `spsp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[0] = b2.z; a[2] = b2.w
 template spsq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[0], a2[3])
 func `spsq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[0] = b2.z; a[3] = b2.w
 template spts*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[1], a2[0])
 func `spts=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[1] = b2.z; a[0] = b2.w
 template sptt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[1], a2[1])
 func `sptt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[1] = b2.z; a[1] = b2.w
 template sptp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[1], a2[2])
 func `sptp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[1] = b2.z; a[2] = b2.w
 template sptq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[1], a2[3])
 func `sptq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[1] = b2.z; a[3] = b2.w
 template spps*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[2], a2[0])
 func `spps=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[2] = b2.z; a[0] = b2.w
 template sppt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[2], a2[1])
 func `sppt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[2] = b2.z; a[1] = b2.w
 template sppp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[2], a2[2])
 func `sppp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[2] = b2.z; a[2] = b2.w
 template sppq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[2], a2[3])
 func `sppq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[2] = b2.z; a[3] = b2.w
 template spqs*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[3], a2[0])
 func `spqs=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[3] = b2.z; a[0] = b2.w
 template spqt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[3], a2[1])
 func `spqt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[3] = b2.z; a[1] = b2.w
 template spqp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[3], a2[2])
 func `spqp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[3] = b2.z; a[2] = b2.w
 template spqq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[2], a2[3], a2[3])
 func `spqq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[2] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[2] = b2.y; a[3] = b2.z; a[3] = b2.w
 template sqss*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[0], a2[0])
 func `sqss=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[0] = b2.z; a[0] = b2.w
 template sqst*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[0], a2[1])
 func `sqst=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[0] = b2.z; a[1] = b2.w
 template sqsp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[0], a2[2])
 func `sqsp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[0] = b2.z; a[2] = b2.w
 template sqsq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[0], a2[3])
 func `sqsq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[0] = b2.z; a[3] = b2.w
 template sqts*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[1], a2[0])
 func `sqts=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[1] = b2.z; a[0] = b2.w
 template sqtt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[1], a2[1])
 func `sqtt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[1] = b2.z; a[1] = b2.w
 template sqtp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[1], a2[2])
 func `sqtp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[1] = b2.z; a[2] = b2.w
 template sqtq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[1], a2[3])
 func `sqtq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[1] = b2.z; a[3] = b2.w
 template sqps*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[2], a2[0])
 func `sqps=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[2] = b2.z; a[0] = b2.w
 template sqpt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[2], a2[1])
 func `sqpt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[2] = b2.z; a[1] = b2.w
 template sqpp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[2], a2[2])
 func `sqpp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[2] = b2.z; a[2] = b2.w
 template sqpq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[2], a2[3])
 func `sqpq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[2] = b2.z; a[3] = b2.w
 template sqqs*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[3], a2[0])
 func `sqqs=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[3] = b2.z; a[0] = b2.w
 template sqqt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[3], a2[1])
 func `sqqt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[3] = b2.z; a[1] = b2.w
 template sqqp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[3], a2[2])
 func `sqqp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[3] = b2.z; a[2] = b2.w
 template sqqq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[0], a2[3], a2[3], a2[3])
 func `sqqq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[0] = b.x; a[3] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[0] = b2.x; a[3] = b2.y; a[3] = b2.z; a[3] = b2.w
 template tsss*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[0], a2[0])
 func `tsss=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[0] = b2.z; a[0] = b2.w
 template tsst*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[0], a2[1])
 func `tsst=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[0] = b2.z; a[1] = b2.w
 template tssp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[0], a2[2])
 func `tssp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[0] = b2.z; a[2] = b2.w
 template tssq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[0], a2[3])
 func `tssq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[0] = b2.z; a[3] = b2.w
 template tsts*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[1], a2[0])
 func `tsts=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[1] = b2.z; a[0] = b2.w
 template tstt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[1], a2[1])
 func `tstt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[1] = b2.z; a[1] = b2.w
 template tstp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[1], a2[2])
 func `tstp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[1] = b2.z; a[2] = b2.w
 template tstq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[1], a2[3])
 func `tstq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[1] = b2.z; a[3] = b2.w
 template tsps*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[2], a2[0])
 func `tsps=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[2] = b2.z; a[0] = b2.w
 template tspt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[2], a2[1])
 func `tspt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[2] = b2.z; a[1] = b2.w
 template tspp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[2], a2[2])
 func `tspp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[2] = b2.z; a[2] = b2.w
 template tspq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[2], a2[3])
 func `tspq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[2] = b2.z; a[3] = b2.w
 template tsqs*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[3], a2[0])
 func `tsqs=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[3] = b2.z; a[0] = b2.w
 template tsqt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[3], a2[1])
 func `tsqt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[3] = b2.z; a[1] = b2.w
 template tsqp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[3], a2[2])
 func `tsqp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[3] = b2.z; a[2] = b2.w
 template tsqq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[0], a2[3], a2[3])
 func `tsqq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[0] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[0] = b2.y; a[3] = b2.z; a[3] = b2.w
 template ttss*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[0], a2[0])
 func `ttss=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[0] = b2.z; a[0] = b2.w
 template ttst*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[0], a2[1])
 func `ttst=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[0] = b2.z; a[1] = b2.w
 template ttsp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[0], a2[2])
 func `ttsp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[0] = b2.z; a[2] = b2.w
 template ttsq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[0], a2[3])
 func `ttsq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[0] = b2.z; a[3] = b2.w
 template ttts*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[1], a2[0])
 func `ttts=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[1] = b2.z; a[0] = b2.w
 template tttt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[1], a2[1])
 func `tttt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[1] = b2.z; a[1] = b2.w
 template tttp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[1], a2[2])
 func `tttp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[1] = b2.z; a[2] = b2.w
 template tttq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[1], a2[3])
 func `tttq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[1] = b2.z; a[3] = b2.w
 template ttps*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[2], a2[0])
 func `ttps=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[2] = b2.z; a[0] = b2.w
 template ttpt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[2], a2[1])
 func `ttpt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[2] = b2.z; a[1] = b2.w
 template ttpp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[2], a2[2])
 func `ttpp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[2] = b2.z; a[2] = b2.w
 template ttpq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[2], a2[3])
 func `ttpq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[2] = b2.z; a[3] = b2.w
 template ttqs*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[3], a2[0])
 func `ttqs=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[3] = b2.z; a[0] = b2.w
 template ttqt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[3], a2[1])
 func `ttqt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[3] = b2.z; a[1] = b2.w
 template ttqp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[3], a2[2])
 func `ttqp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[3] = b2.z; a[2] = b2.w
 template ttqq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[1], a2[3], a2[3])
 func `ttqq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[1] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[1] = b2.y; a[3] = b2.z; a[3] = b2.w
 template tpss*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[0], a2[0])
 func `tpss=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[0] = b2.z; a[0] = b2.w
 template tpst*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[0], a2[1])
 func `tpst=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[0] = b2.z; a[1] = b2.w
 template tpsp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[0], a2[2])
 func `tpsp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[0] = b2.z; a[2] = b2.w
 template tpsq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[0], a2[3])
 func `tpsq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[0] = b2.z; a[3] = b2.w
 template tpts*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[1], a2[0])
 func `tpts=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[1] = b2.z; a[0] = b2.w
 template tptt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[1], a2[1])
 func `tptt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[1] = b2.z; a[1] = b2.w
 template tptp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[1], a2[2])
 func `tptp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[1] = b2.z; a[2] = b2.w
 template tptq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[1], a2[3])
 func `tptq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[1] = b2.z; a[3] = b2.w
 template tpps*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[2], a2[0])
 func `tpps=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[2] = b2.z; a[0] = b2.w
 template tppt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[2], a2[1])
 func `tppt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[2] = b2.z; a[1] = b2.w
 template tppp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[2], a2[2])
 func `tppp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[2] = b2.z; a[2] = b2.w
 template tppq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[2], a2[3])
 func `tppq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[2] = b2.z; a[3] = b2.w
 template tpqs*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[3], a2[0])
 func `tpqs=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[3] = b2.z; a[0] = b2.w
 template tpqt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[3], a2[1])
 func `tpqt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[3] = b2.z; a[1] = b2.w
 template tpqp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[3], a2[2])
 func `tpqp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[3] = b2.z; a[2] = b2.w
 template tpqq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[2], a2[3], a2[3])
 func `tpqq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[2] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[2] = b2.y; a[3] = b2.z; a[3] = b2.w
 template tqss*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[0], a2[0])
 func `tqss=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[0] = b2.z; a[0] = b2.w
 template tqst*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[0], a2[1])
 func `tqst=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[0] = b2.z; a[1] = b2.w
 template tqsp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[0], a2[2])
 func `tqsp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[0] = b2.z; a[2] = b2.w
 template tqsq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[0], a2[3])
 func `tqsq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[0] = b2.z; a[3] = b2.w
 template tqts*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[1], a2[0])
 func `tqts=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[1] = b2.z; a[0] = b2.w
 template tqtt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[1], a2[1])
 func `tqtt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[1] = b2.z; a[1] = b2.w
 template tqtp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[1], a2[2])
 func `tqtp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[1] = b2.z; a[2] = b2.w
 template tqtq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[1], a2[3])
 func `tqtq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[1] = b2.z; a[3] = b2.w
 template tqps*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[2], a2[0])
 func `tqps=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[2] = b2.z; a[0] = b2.w
 template tqpt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[2], a2[1])
 func `tqpt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[2] = b2.z; a[1] = b2.w
 template tqpp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[2], a2[2])
 func `tqpp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[2] = b2.z; a[2] = b2.w
 template tqpq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[2], a2[3])
 func `tqpq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[2] = b2.z; a[3] = b2.w
 template tqqs*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[3], a2[0])
 func `tqqs=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[3] = b2.z; a[0] = b2.w
 template tqqt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[3], a2[1])
 func `tqqt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[3] = b2.z; a[1] = b2.w
 template tqqp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[3], a2[2])
 func `tqqp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[3] = b2.z; a[2] = b2.w
 template tqqq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[1], a2[3], a2[3], a2[3])
 func `tqqq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[1] = b.x; a[3] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[1] = b2.x; a[3] = b2.y; a[3] = b2.z; a[3] = b2.w
 template psss*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[0], a2[0])
 func `psss=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[0] = b2.z; a[0] = b2.w
 template psst*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[0], a2[1])
 func `psst=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[0] = b2.z; a[1] = b2.w
 template pssp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[0], a2[2])
 func `pssp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[0] = b2.z; a[2] = b2.w
 template pssq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[0], a2[3])
 func `pssq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[0] = b2.z; a[3] = b2.w
 template psts*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[1], a2[0])
 func `psts=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[1] = b2.z; a[0] = b2.w
 template pstt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[1], a2[1])
 func `pstt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[1] = b2.z; a[1] = b2.w
 template pstp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[1], a2[2])
 func `pstp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[1] = b2.z; a[2] = b2.w
 template pstq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[1], a2[3])
 func `pstq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[1] = b2.z; a[3] = b2.w
 template psps*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[2], a2[0])
 func `psps=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[2] = b2.z; a[0] = b2.w
 template pspt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[2], a2[1])
 func `pspt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[2] = b2.z; a[1] = b2.w
 template pspp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[2], a2[2])
 func `pspp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[2] = b2.z; a[2] = b2.w
 template pspq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[2], a2[3])
 func `pspq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[2] = b2.z; a[3] = b2.w
 template psqs*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[3], a2[0])
 func `psqs=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[3] = b2.z; a[0] = b2.w
 template psqt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[3], a2[1])
 func `psqt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[3] = b2.z; a[1] = b2.w
 template psqp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[3], a2[2])
 func `psqp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[3] = b2.z; a[2] = b2.w
 template psqq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[0], a2[3], a2[3])
 func `psqq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[0] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[0] = b2.y; a[3] = b2.z; a[3] = b2.w
 template ptss*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[0], a2[0])
 func `ptss=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[0] = b2.z; a[0] = b2.w
 template ptst*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[0], a2[1])
 func `ptst=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[0] = b2.z; a[1] = b2.w
 template ptsp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[0], a2[2])
 func `ptsp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[0] = b2.z; a[2] = b2.w
 template ptsq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[0], a2[3])
 func `ptsq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[0] = b2.z; a[3] = b2.w
 template ptts*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[1], a2[0])
 func `ptts=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[1] = b2.z; a[0] = b2.w
 template pttt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[1], a2[1])
 func `pttt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[1] = b2.z; a[1] = b2.w
 template pttp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[1], a2[2])
 func `pttp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[1] = b2.z; a[2] = b2.w
 template pttq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[1], a2[3])
 func `pttq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[1] = b2.z; a[3] = b2.w
 template ptps*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[2], a2[0])
 func `ptps=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[2] = b2.z; a[0] = b2.w
 template ptpt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[2], a2[1])
 func `ptpt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[2] = b2.z; a[1] = b2.w
 template ptpp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[2], a2[2])
 func `ptpp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[2] = b2.z; a[2] = b2.w
 template ptpq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[2], a2[3])
 func `ptpq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[2] = b2.z; a[3] = b2.w
 template ptqs*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[3], a2[0])
 func `ptqs=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[3] = b2.z; a[0] = b2.w
 template ptqt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[3], a2[1])
 func `ptqt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[3] = b2.z; a[1] = b2.w
 template ptqp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[3], a2[2])
 func `ptqp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[3] = b2.z; a[2] = b2.w
 template ptqq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[1], a2[3], a2[3])
 func `ptqq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[1] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[1] = b2.y; a[3] = b2.z; a[3] = b2.w
 template ppss*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[0], a2[0])
 func `ppss=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[0] = b2.z; a[0] = b2.w
 template ppst*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[0], a2[1])
 func `ppst=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[0] = b2.z; a[1] = b2.w
 template ppsp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[0], a2[2])
 func `ppsp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[0] = b2.z; a[2] = b2.w
 template ppsq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[0], a2[3])
 func `ppsq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[0] = b2.z; a[3] = b2.w
 template ppts*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[1], a2[0])
 func `ppts=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[1] = b2.z; a[0] = b2.w
 template pptt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[1], a2[1])
 func `pptt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[1] = b2.z; a[1] = b2.w
 template pptp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[1], a2[2])
 func `pptp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[1] = b2.z; a[2] = b2.w
 template pptq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[1], a2[3])
 func `pptq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[1] = b2.z; a[3] = b2.w
 template ppps*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[2], a2[0])
 func `ppps=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[2] = b2.z; a[0] = b2.w
 template pppt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[2], a2[1])
 func `pppt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[2] = b2.z; a[1] = b2.w
 template pppp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[2], a2[2])
 func `pppp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[2] = b2.z; a[2] = b2.w
 template pppq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[2], a2[3])
 func `pppq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[2] = b2.z; a[3] = b2.w
 template ppqs*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[3], a2[0])
 func `ppqs=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[3] = b2.z; a[0] = b2.w
 template ppqt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[3], a2[1])
 func `ppqt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[3] = b2.z; a[1] = b2.w
 template ppqp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[3], a2[2])
 func `ppqp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[3] = b2.z; a[2] = b2.w
 template ppqq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[2], a2[3], a2[3])
 func `ppqq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[2] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[2] = b2.y; a[3] = b2.z; a[3] = b2.w
 template pqss*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[0], a2[0])
 func `pqss=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[0] = b2.z; a[0] = b2.w
 template pqst*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[0], a2[1])
 func `pqst=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[0] = b2.z; a[1] = b2.w
 template pqsp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[0], a2[2])
 func `pqsp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[0] = b2.z; a[2] = b2.w
 template pqsq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[0], a2[3])
 func `pqsq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[0] = b2.z; a[3] = b2.w
 template pqts*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[1], a2[0])
 func `pqts=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[1] = b2.z; a[0] = b2.w
 template pqtt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[1], a2[1])
 func `pqtt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[1] = b2.z; a[1] = b2.w
 template pqtp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[1], a2[2])
 func `pqtp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[1] = b2.z; a[2] = b2.w
 template pqtq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[1], a2[3])
 func `pqtq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[1] = b2.z; a[3] = b2.w
 template pqps*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[2], a2[0])
 func `pqps=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[2] = b2.z; a[0] = b2.w
 template pqpt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[2], a2[1])
 func `pqpt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[2] = b2.z; a[1] = b2.w
 template pqpp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[2], a2[2])
 func `pqpp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[2] = b2.z; a[2] = b2.w
 template pqpq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[2], a2[3])
 func `pqpq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[2] = b2.z; a[3] = b2.w
 template pqqs*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[3], a2[0])
 func `pqqs=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[3] = b2.z; a[0] = b2.w
 template pqqt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[3], a2[1])
 func `pqqt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[3] = b2.z; a[1] = b2.w
 template pqqp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[3], a2[2])
 func `pqqp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[3] = b2.z; a[2] = b2.w
 template pqqq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[2], a2[3], a2[3], a2[3])
 func `pqqq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[2] = b.x; a[3] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[2] = b2.x; a[3] = b2.y; a[3] = b2.z; a[3] = b2.w
 template qsss*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[0], a2[0])
 func `qsss=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[0] = b2.z; a[0] = b2.w
 template qsst*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[0], a2[1])
 func `qsst=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[0] = b2.z; a[1] = b2.w
 template qssp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[0], a2[2])
 func `qssp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[0] = b2.z; a[2] = b2.w
 template qssq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[0], a2[3])
 func `qssq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[0] = b2.z; a[3] = b2.w
 template qsts*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[1], a2[0])
 func `qsts=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[1] = b2.z; a[0] = b2.w
 template qstt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[1], a2[1])
 func `qstt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[1] = b2.z; a[1] = b2.w
 template qstp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[1], a2[2])
 func `qstp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[1] = b2.z; a[2] = b2.w
 template qstq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[1], a2[3])
 func `qstq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[1] = b2.z; a[3] = b2.w
 template qsps*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[2], a2[0])
 func `qsps=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[2] = b2.z; a[0] = b2.w
 template qspt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[2], a2[1])
 func `qspt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[2] = b2.z; a[1] = b2.w
 template qspp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[2], a2[2])
 func `qspp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[2] = b2.z; a[2] = b2.w
 template qspq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[2], a2[3])
 func `qspq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[2] = b2.z; a[3] = b2.w
 template qsqs*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[3], a2[0])
 func `qsqs=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[3] = b2.z; a[0] = b2.w
 template qsqt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[3], a2[1])
 func `qsqt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[3] = b2.z; a[1] = b2.w
 template qsqp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[3], a2[2])
 func `qsqp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[3] = b2.z; a[2] = b2.w
 template qsqq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[0], a2[3], a2[3])
 func `qsqq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[0] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[0] = b2.y; a[3] = b2.z; a[3] = b2.w
 template qtss*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[0], a2[0])
 func `qtss=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[0] = b2.z; a[0] = b2.w
 template qtst*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[0], a2[1])
 func `qtst=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[0] = b2.z; a[1] = b2.w
 template qtsp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[0], a2[2])
 func `qtsp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[0] = b2.z; a[2] = b2.w
 template qtsq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[0], a2[3])
 func `qtsq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[0] = b2.z; a[3] = b2.w
 template qtts*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[1], a2[0])
 func `qtts=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[1] = b2.z; a[0] = b2.w
 template qttt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[1], a2[1])
 func `qttt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[1] = b2.z; a[1] = b2.w
 template qttp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[1], a2[2])
 func `qttp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[1] = b2.z; a[2] = b2.w
 template qttq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[1], a2[3])
 func `qttq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[1] = b2.z; a[3] = b2.w
 template qtps*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[2], a2[0])
 func `qtps=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[2] = b2.z; a[0] = b2.w
 template qtpt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[2], a2[1])
 func `qtpt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[2] = b2.z; a[1] = b2.w
 template qtpp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[2], a2[2])
 func `qtpp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[2] = b2.z; a[2] = b2.w
 template qtpq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[2], a2[3])
 func `qtpq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[2] = b2.z; a[3] = b2.w
 template qtqs*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[3], a2[0])
 func `qtqs=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[3] = b2.z; a[0] = b2.w
 template qtqt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[3], a2[1])
 func `qtqt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[3] = b2.z; a[1] = b2.w
 template qtqp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[3], a2[2])
 func `qtqp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[3] = b2.z; a[2] = b2.w
 template qtqq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[1], a2[3], a2[3])
 func `qtqq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[1] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[1] = b2.y; a[3] = b2.z; a[3] = b2.w
 template qpss*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[0], a2[0])
 func `qpss=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[0] = b2.z; a[0] = b2.w
 template qpst*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[0], a2[1])
 func `qpst=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[0] = b2.z; a[1] = b2.w
 template qpsp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[0], a2[2])
 func `qpsp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[0] = b2.z; a[2] = b2.w
 template qpsq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[0], a2[3])
 func `qpsq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[0] = b2.z; a[3] = b2.w
 template qpts*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[1], a2[0])
 func `qpts=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[1] = b2.z; a[0] = b2.w
 template qptt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[1], a2[1])
 func `qptt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[1] = b2.z; a[1] = b2.w
 template qptp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[1], a2[2])
 func `qptp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[1] = b2.z; a[2] = b2.w
 template qptq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[1], a2[3])
 func `qptq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[1] = b2.z; a[3] = b2.w
 template qpps*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[2], a2[0])
 func `qpps=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[2] = b2.z; a[0] = b2.w
 template qppt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[2], a2[1])
 func `qppt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[2] = b2.z; a[1] = b2.w
 template qppp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[2], a2[2])
 func `qppp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[2] = b2.z; a[2] = b2.w
 template qppq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[2], a2[3])
 func `qppq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[2] = b2.z; a[3] = b2.w
 template qpqs*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[3], a2[0])
 func `qpqs=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[3] = b2.z; a[0] = b2.w
 template qpqt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[3], a2[1])
 func `qpqt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[3] = b2.z; a[1] = b2.w
 template qpqp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[3], a2[2])
 func `qpqp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[3] = b2.z; a[2] = b2.w
 template qpqq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[2], a2[3], a2[3])
 func `qpqq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[2] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[2] = b2.y; a[3] = b2.z; a[3] = b2.w
 template qqss*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[0], a2[0])
 func `qqss=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[0] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[0] = b2.z; a[0] = b2.w
 template qqst*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[0], a2[1])
 func `qqst=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[0] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[0] = b2.z; a[1] = b2.w
 template qqsp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[0], a2[2])
 func `qqsp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[0] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[0] = b2.z; a[2] = b2.w
 template qqsq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[0], a2[3])
 func `qqsq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[0] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[0] = b2.z; a[3] = b2.w
 template qqts*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[1], a2[0])
 func `qqts=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[1] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[1] = b2.z; a[0] = b2.w
 template qqtt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[1], a2[1])
 func `qqtt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[1] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[1] = b2.z; a[1] = b2.w
 template qqtp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[1], a2[2])
 func `qqtp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[1] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[1] = b2.z; a[2] = b2.w
 template qqtq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[1], a2[3])
 func `qqtq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[1] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[1] = b2.z; a[3] = b2.w
 template qqps*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[2], a2[0])
 func `qqps=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[2] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[2] = b2.z; a[0] = b2.w
 template qqpt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[2], a2[1])
 func `qqpt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[2] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[2] = b2.z; a[1] = b2.w
 template qqpp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[2], a2[2])
 func `qqpp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[2] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[2] = b2.z; a[2] = b2.w
 template qqpq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[2], a2[3])
 func `qqpq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[2] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[2] = b2.z; a[3] = b2.w
 template qqqs*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[3], a2[0])
 func `qqqs=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[3] = b.z; a[0] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[3] = b2.z; a[0] = b2.w
 template qqqt*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[3], a2[1])
 func `qqqt=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[3] = b.z; a[1] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[3] = b2.z; a[1] = b2.w
 template qqqp*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[3], a2[2])
 func `qqqp=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[3] = b.z; a[2] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[3] = b2.z; a[2] = b2.w
 template qqqq*[T](a: GVec234[T]): GVec4[T] =
   let a2 = a
   gvec4(a2[3], a2[3], a2[3], a2[3])
 func `qqqq=`*[T](a: var GVec234[T], b: GVec4[T]) =
-  a[3] = b.x; a[3] = b.y; a[3] = b.z; a[3] = b.w
+  let b2 = b
+  a[3] = b2.x; a[3] = b2.y; a[3] = b2.z; a[3] = b2.w
\ No newline at end of file
diff --git a/tools/genswizzle.nim b/tools/genswizzle.nim
index d60d1af..7db0785 100644
--- a/tools/genswizzle.nim
+++ b/tools/genswizzle.nim
@@ -18,7 +18,8 @@ for swizzle in swizzles:
       echo &"  let a2 = a"
       echo &"  gvec2(a2[{i1}], a2[{i2}])"
       echo &"func `{s1}{s2}=`*[T](a: var GVec234[T], b: GVec2[T]) ="
-      echo &"  a[{i1}] = b.x; a[{i2}] = b.y"
+      echo &"  let b2 = b"
+      echo &"  a[{i1}] = b2.x; a[{i2}] = b2.y"
 
 for swizzle in swizzles:
   echo "\n# 3 x ", swizzle
@@ -29,7 +30,8 @@ for swizzle in swizzles:
         echo &"  let a2 = a"
         echo &"  gvec3(a2[{i1}], a2[{i2}], a2[{i3}])"
         echo &"func `{s1}{s2}{s3}=`*[T](a: var GVec234[T], b: GVec3[T]) ="
-        echo &"  a[{i1}] = b.x; a[{i2}] = b.y; a[{i3}] = b.z"
+        echo &"  let b2 = b"
+        echo &"  a[{i1}] = b2.x; a[{i2}] = b2.y; a[{i3}] = b2.z"
 
 for swizzle in swizzles:
   echo "\n# 4 x ", swizzle
@@ -41,4 +43,5 @@ for swizzle in swizzles:
           echo &"  let a2 = a"
           echo &"  gvec4(a2[{i1}], a2[{i2}], a2[{i3}], a2[{i4}])"
           echo &"func `{s1}{s2}{s3}{s4}=`*[T](a: var GVec234[T], b: GVec4[T]) ="
-          echo &"  a[{i1}] = b.x; a[{i2}] = b.y; a[{i3}] = b.z; a[{i4}] = b.w"
+          echo &"  let b2 = b"
+          echo &"  a[{i1}] = b2.x; a[{i2}] = b2.y; a[{i3}] = b2.z; a[{i4}] = b2.w"