mirror of git://gcc.gnu.org/git/gcc.git
48 lines
1.0 KiB
Go
48 lines
1.0 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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// +build 386 amd64 amd64p32
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package cpu_test
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import (
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. "internal/cpu"
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"os"
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"runtime"
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"testing"
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)
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func TestAMD64minimalFeatures(t *testing.T) {
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if runtime.GOARCH != "amd64" {
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return
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}
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if !X86.HasSSE2 {
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t.Fatalf("HasSSE2 expected true, got false")
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}
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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 TestDisableSSE2(t *testing.T) {
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runDebugOptionsTest(t, "TestSSE2DebugOption", "sse2=0")
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}
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func TestSSE2DebugOption(t *testing.T) {
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MustHaveDebugOptionsEnabled(t)
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if os.Getenv("GODEBUGCPU") != "sse2=0" {
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t.Skipf("skipping test: GODEBUGCPU=sse2=0 not set")
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}
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want := runtime.GOARCH != "386" // SSE2 can only be disabled on 386.
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if got := X86.HasSSE2; got != want {
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t.Errorf("X86.HasSSE2 on %s expected %v, got %v", runtime.GOARCH, want, got)
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}
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}
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