mirror of https://go.googlesource.com/go
58 lines
1.4 KiB
Go
58 lines
1.4 KiB
Go
// Copyright 2018 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build 386 || amd64
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package cpu_test
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import (
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. "internal/cpu"
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"internal/godebug"
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"testing"
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)
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func TestX86ifAVX2hasAVX(t *testing.T) {
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if X86.HasAVX2 && !X86.HasAVX {
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t.Fatalf("HasAVX expected true when HasAVX2 is true, got false")
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}
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}
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func TestX86ifAVX512FhasAVX2(t *testing.T) {
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if X86.HasAVX512F && !X86.HasAVX2 {
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t.Fatalf("HasAVX2 expected true when HasAVX512F is true, got false")
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}
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}
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func TestX86ifAVX512BWhasAVX512F(t *testing.T) {
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if X86.HasAVX512BW && !X86.HasAVX512F {
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t.Fatalf("HasAVX512F expected true when HasAVX512BW is true, got false")
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}
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}
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func TestX86ifAVX512VLhasAVX512F(t *testing.T) {
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if X86.HasAVX512VL && !X86.HasAVX512F {
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t.Fatalf("HasAVX512F expected true when HasAVX512VL is true, got false")
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}
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}
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func TestDisableSSE3(t *testing.T) {
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if GetGOAMD64level() > 1 {
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t.Skip("skipping test: can't run on GOAMD64>v1 machines")
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}
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runDebugOptionsTest(t, "TestSSE3DebugOption", "cpu.sse3=off")
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}
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func TestSSE3DebugOption(t *testing.T) {
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MustHaveDebugOptionsSupport(t)
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if godebug.New("#cpu.sse3").Value() != "off" {
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t.Skipf("skipping test: GODEBUG=cpu.sse3=off not set")
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}
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want := false
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if got := X86.HasSSE3; got != want {
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t.Errorf("X86.HasSSE3 expected %v, got %v", want, got)
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}
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}
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