.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/sys@v0.0.0-20210124154548-22da62e12c0c/cpu/cpu_test.go

   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 package cpu_test
   6
   7 import (
   8         "runtime"
   9         "testing"
  10
  11         "golang.org/x/sys/cpu"
  12 )
  13
  14 func TestAMD64minimalFeatures(t *testing.T) {
  15         if runtime.GOARCH == "amd64" {
  16                 if !cpu.Initialized {
  17                         t.Fatal("Initialized expected true, got false")
  18                 }
  19                 if !cpu.X86.HasSSE2 {
  20                         t.Fatal("HasSSE2 expected true, got false")
  21                 }
  22         }
  23 }
  24
  25 func TestAVX2hasAVX(t *testing.T) {
  26         if runtime.GOARCH == "amd64" {
  27                 if cpu.X86.HasAVX2 && !cpu.X86.HasAVX {
  28                         t.Fatal("HasAVX expected true, got false")
  29                 }
  30         }
  31 }
  32
  33 func TestAVX512HasAVX2AndAVX(t *testing.T) {
  34         if runtime.GOARCH == "amd64" {
  35                 if cpu.X86.HasAVX512 && !cpu.X86.HasAVX {
  36                         t.Fatal("HasAVX expected true, got false")
  37                 }
  38                 if cpu.X86.HasAVX512 && !cpu.X86.HasAVX2 {
  39                         t.Fatal("HasAVX2 expected true, got false")
  40                 }
  41         }
  42 }
  43
  44 func TestARM64minimalFeatures(t *testing.T) {
  45         if runtime.GOARCH != "arm64" || (runtime.GOOS == "darwin" || runtime.GOOS == "ios") {
  46                 return
  47         }
  48         if !cpu.ARM64.HasASIMD {
  49                 t.Fatal("HasASIMD expected true, got false")
  50         }
  51         if !cpu.ARM64.HasFP {
  52                 t.Fatal("HasFP expected true, got false")
  53         }
  54 }
  55
  56 func TestMIPS64Initialized(t *testing.T) {
  57         if runtime.GOARCH == "mips64" || runtime.GOARCH == "mips64le" {
  58                 if !cpu.Initialized {
  59                         t.Fatal("Initialized expected true, got false")
  60                 }
  61         }
  62 }
  63
  64 // On ppc64x, the ISA bit for POWER8 should always be set on POWER8 and beyond.
  65 func TestPPC64minimalFeatures(t *testing.T) {
  66         // Do not run this with gccgo on ppc64, as it doesn't have POWER8 as a minimum
  67         // requirement.
  68         if runtime.Compiler == "gccgo" && runtime.GOARCH == "ppc64" {
  69                 t.Skip("gccgo does not require POWER8 on ppc64; skipping")
  70         }
  71         if runtime.GOARCH == "ppc64" || runtime.GOARCH == "ppc64le" {
  72                 if !cpu.PPC64.IsPOWER8 {
  73                         t.Fatal("IsPOWER8 expected true, got false")
  74                 }
  75         }
  76 }