Add simd_reverse

core/intrinsics/intrinsics.odin

@@ -245,6 +245,8 @@ simd_floor   :: proc(a: #simd[N]any_float) -> #simd[N]any_float ---
 simd_trunc   :: proc(a: #simd[N]any_float) -> #simd[N]any_float ---
 simd_nearest :: proc(a: #simd[N]any_float) -> #simd[N]any_float ---
 
+simd_reverse :: proc(a: #simd[N]T) -> #simd[N]T ---
+
 // WASM targets only
 wasm_memory_grow :: proc(index, delta: uintptr) -> int ---
 wasm_memory_size :: proc(index: uintptr)        -> int ---

core/simd/simd.odin

@@ -90,6 +90,8 @@ floor   :: intrinsics.simd_floor
 trunc   :: intrinsics.simd_trunc
 nearest :: intrinsics.simd_nearest
 
+reverse :: intrinsics.simd_reverse
+
 splat :: #force_inline proc "contextless" ($T: typeid/#simd[$LANES]$E, value: E) -> T {
 	return T{0..<LANES = value}
 }