gitee.com/ks-custle/core-gm@v0.0.0-20230922171213-b83bdd97b62c/internal/cpu/cpu_x86_test.go (about)

     1  // Copyright 2018 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  //go:build 386 || amd64
     6  // +build 386 amd64
     7  
     8  package cpu_test
     9  
    10  import (
    11  	"os"
    12  	"runtime"
    13  	"testing"
    14  
    15  	. "gitee.com/ks-custle/core-gm/internal/cpu"
    16  )
    17  
    18  func TestX86ifAVX2hasAVX(t *testing.T) {
    19  	if X86.HasAVX2 && !X86.HasAVX {
    20  		t.Fatalf("HasAVX expected true when HasAVX2 is true, got false")
    21  	}
    22  }
    23  
    24  func TestDisableSSE2(t *testing.T) {
    25  	runDebugOptionsTest(t, "TestSSE2DebugOption", "cpu.sse2=off")
    26  }
    27  
    28  func TestSSE2DebugOption(t *testing.T) {
    29  	MustHaveDebugOptionsSupport(t)
    30  
    31  	if os.Getenv("GODEBUG") != "cpu.sse2=off" {
    32  		t.Skipf("skipping test: GODEBUG=cpu.sse2=off not set")
    33  	}
    34  
    35  	want := runtime.GOARCH != "386" // SSE2 can only be disabled on 386.
    36  	if got := X86.HasSSE2; got != want {
    37  		t.Errorf("X86.HasSSE2 on %s expected %v, got %v", runtime.GOARCH, want, got)
    38  	}
    39  }
    40  
    41  func TestDisableSSE3(t *testing.T) {
    42  	runDebugOptionsTest(t, "TestSSE3DebugOption", "cpu.sse3=off")
    43  }
    44  
    45  func TestSSE3DebugOption(t *testing.T) {
    46  	MustHaveDebugOptionsSupport(t)
    47  
    48  	if os.Getenv("GODEBUG") != "cpu.sse3=off" {
    49  		t.Skipf("skipping test: GODEBUG=cpu.sse3=off not set")
    50  	}
    51  
    52  	want := false
    53  	if got := X86.HasSSE3; got != want {
    54  		t.Errorf("X86.HasSSE3 expected %v, got %v", want, got)
    55  	}
    56  }