| // run | |
| //go:build goexperiment.simd && amd64 | |
| // Copyright 2026 The Go Authors. All rights reserved. | |
| // Use of this source code is governed by a BSD-style | |
| // license that can be found in the LICENSE file. | |
| package main | |
| import ( | |
| "simd/archsimd" | |
| ) | |
| //go:noinline | |
| func twoRegions() int { | |
| n := 0 | |
| if archsimd.X86.AVX512() { | |
| var v archsimd.Int32x16 | |
| n += int(v.ReduceSum()) | |
| } | |
| if archsimd.X86.AVX512() { | |
| var w archsimd.Int32x16 | |
| n += int(w.ReduceSum()) | |
| } | |
| return n | |
| } | |
| func main() { | |
| _ = twoRegions() | |
| } |