5ab3140dfb
PR-URL: https://github.com/nodejs/node/pull/54536 Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Marco Ippolito <marcoippolito54@gmail.com> Reviewed-By: Richard Lau <rlau@redhat.com>
78 lines
2.0 KiB
C++
78 lines
2.0 KiB
C++
// Copyright 2014 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "src/base/cpu.h"
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#include "testing/gtest/include/gtest/gtest.h"
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#include "src/heap/base/memory-tagging.h"
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namespace v8 {
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namespace base {
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#if defined(V8_HOST_ARCH_ARM64)
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TEST(CPUTest, SuppressTagCheckingScope) {
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CPU cpu;
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if (!cpu.has_mte()) GTEST_SKIP();
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// Read the current value of PSTATE.TCO (it should be zero).
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uint64_t val;
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asm volatile(".arch_extension memtag \n mrs %0, tco" : "=r" (val));
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EXPECT_EQ(val, 0u);
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// Create a scope where MTE tag checks are temporarily suspended.
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{
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heap::base::SuspendTagCheckingScope s;
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asm volatile(".arch_extension memtag \n mrs %0, tco" : "=r" (val));
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EXPECT_EQ(val, 1u << 25);
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}
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// Check that the scope restores TCO afterwards.
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asm volatile(".arch_extension memtag \n mrs %0, tco" : "=r" (val));
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EXPECT_EQ(val, 0u);
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}
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#endif
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TEST(CPUTest, FeatureImplications) {
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CPU cpu;
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// ia32 and x64 features
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EXPECT_TRUE(!cpu.has_sse() || cpu.has_mmx());
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EXPECT_TRUE(!cpu.has_sse2() || cpu.has_sse());
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EXPECT_TRUE(!cpu.has_sse3() || cpu.has_sse2());
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EXPECT_TRUE(!cpu.has_ssse3() || cpu.has_sse3());
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EXPECT_TRUE(!cpu.has_sse41() || cpu.has_sse3());
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EXPECT_TRUE(!cpu.has_sse42() || cpu.has_sse41());
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EXPECT_TRUE(!cpu.has_avx() || cpu.has_sse2());
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EXPECT_TRUE(!cpu.has_fma3() || cpu.has_avx());
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EXPECT_TRUE(!cpu.has_avx2() || cpu.has_avx());
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// arm features
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EXPECT_TRUE(!cpu.has_vfp3_d32() || cpu.has_vfp3());
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}
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TEST(CPUTest, RequiredFeatures) {
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CPU cpu;
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#if V8_HOST_ARCH_ARM
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EXPECT_TRUE(cpu.has_fpu());
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#endif
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#if V8_HOST_ARCH_IA32
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EXPECT_TRUE(cpu.has_fpu());
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EXPECT_TRUE(cpu.has_sahf());
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#endif
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#if V8_HOST_ARCH_X64
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EXPECT_TRUE(cpu.has_fpu());
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EXPECT_TRUE(cpu.has_cmov());
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EXPECT_TRUE(cpu.has_mmx());
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EXPECT_TRUE(cpu.has_sse());
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EXPECT_TRUE(cpu.has_sse2());
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#endif
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}
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} // namespace base
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} // namespace v8
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