src/v8/src/base/cpu-unittest.cc

   1 // Copyright 2014 the V8 project authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "src/base/cpu.h"
   6 #include "testing/gtest/include/gtest/gtest.h"
   7
   8 namespace v8 {
   9 namespace base {
  10
  11 TEST(CPUTest, FeatureImplications) {
  12   CPU cpu;
  13
  14   // ia32 and x64 features
  15   EXPECT_TRUE(!cpu.has_sse() || cpu.has_mmx());
  16   EXPECT_TRUE(!cpu.has_sse2() || cpu.has_sse());
  17   EXPECT_TRUE(!cpu.has_sse3() || cpu.has_sse2());
  18   EXPECT_TRUE(!cpu.has_ssse3() || cpu.has_sse3());
  19   EXPECT_TRUE(!cpu.has_sse41() || cpu.has_sse3());
  20   EXPECT_TRUE(!cpu.has_sse42() || cpu.has_sse41());
  21
  22   // arm features
  23   EXPECT_TRUE(!cpu.has_vfp3_d32() || cpu.has_vfp3());
  24 }
  25
  26
  27 TEST(CPUTest, RequiredFeatures) {
  28   CPU cpu;
  29
  30 #if V8_HOST_ARCH_ARM
  31   EXPECT_TRUE(cpu.has_fpu());
  32 #endif
  33
  34 #if V8_HOST_ARCH_IA32
  35   EXPECT_TRUE(cpu.has_fpu());
  36   EXPECT_TRUE(cpu.has_sahf());
  37 #endif
  38
  39 #if V8_HOST_ARCH_X64
  40   EXPECT_TRUE(cpu.has_fpu());
  41   EXPECT_TRUE(cpu.has_cmov());
  42   EXPECT_TRUE(cpu.has_mmx());
  43   EXPECT_TRUE(cpu.has_sse());
  44   EXPECT_TRUE(cpu.has_sse2());
  45 #endif
  46 }
  47
  48 }  // namespace base
  49 }  // namespace v8