mirror of https://github.com/gnss-sdr/gnss-sdr
286 lines
8.7 KiB
C++
286 lines
8.7 KiB
C++
// SPDX-FileCopyrightText: 2017 Google LLC
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// SPDX-License-Identifier: Apache-2.0
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#include "cpuinfo_aarch64.h"
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#include "filesystem_for_testing.h"
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#include "gtest/gtest.h"
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#include "hwcaps_for_testing.h"
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#include <set>
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#if defined(CPU_FEATURES_OS_WINDOWS)
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#include "internal/windows_utils.h"
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#endif // CPU_FEATURES_OS_WINDOWS
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namespace cpu_features
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{
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class FakeCpuAarch64
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{
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public:
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#if defined(CPU_FEATURES_OS_WINDOWS)
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bool GetWindowsIsProcessorFeaturePresent(DWORD dwProcessorFeature)
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{
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return windows_isprocessorfeaturepresent_.count(dwProcessorFeature);
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}
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void SetWindowsIsProcessorFeaturePresent(DWORD dwProcessorFeature)
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{
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windows_isprocessorfeaturepresent_.insert(dwProcessorFeature);
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}
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WORD GetWindowsNativeSystemInfoProcessorRevision() const
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{
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return processor_revision_;
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}
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void SetWindowsNativeSystemInfoProcessorRevision(WORD wProcessorRevision)
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{
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processor_revision_ = wProcessorRevision;
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}
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private:
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std::set<DWORD> windows_isprocessorfeaturepresent_;
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WORD processor_revision_{};
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#endif // CPU_FEATURES_OS_WINDOWS
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};
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static FakeCpuAarch64* g_fake_cpu_instance = nullptr;
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static FakeCpuAarch64& cpu()
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{
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assert(g_fake_cpu_instance != nullptr);
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return *g_fake_cpu_instance;
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}
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#if defined(CPU_FEATURES_OS_WINDOWS)
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extern "C" bool GetWindowsIsProcessorFeaturePresent(DWORD dwProcessorFeature)
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{
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return cpu().GetWindowsIsProcessorFeaturePresent(dwProcessorFeature);
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}
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extern "C" WORD GetWindowsNativeSystemInfoProcessorRevision()
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{
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return cpu().GetWindowsNativeSystemInfoProcessorRevision();
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}
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#endif // CPU_FEATURES_OS_WINDOWS
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namespace
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{
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class CpuidAarch64Test : public ::testing::Test
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{
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protected:
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void SetUp() override
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{
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assert(g_fake_cpu_instance == nullptr);
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g_fake_cpu_instance = new FakeCpuAarch64();
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}
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void TearDown() override
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{
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delete g_fake_cpu_instance;
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g_fake_cpu_instance = nullptr;
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}
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};
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TEST(CpuinfoAarch64Test, Aarch64FeaturesEnum)
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{
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const char* last_name = GetAarch64FeaturesEnumName(AARCH64_LAST_);
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EXPECT_STREQ(last_name, "unknown_feature");
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for (int i = static_cast<int>(AARCH64_FP);
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i != static_cast<int>(AARCH64_LAST_); ++i)
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{
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const auto feature = static_cast<Aarch64FeaturesEnum>(i);
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const char* name = GetAarch64FeaturesEnumName(feature);
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ASSERT_FALSE(name == nullptr);
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EXPECT_STRNE(name, "");
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EXPECT_STRNE(name, last_name);
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}
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}
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#if defined(CPU_FEATURES_OS_LINUX)
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void DisableHardwareCapabilities()
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{
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SetHardwareCapabilities(0, 0);
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}
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TEST(CpuinfoAarch64Test, FromHardwareCap)
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{
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ResetHwcaps();
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SetHardwareCapabilities(AARCH64_HWCAP_FP | AARCH64_HWCAP_AES, 0);
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GetEmptyFilesystem(); // disabling /proc/cpuinfo
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const auto info = GetAarch64Info();
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EXPECT_TRUE(info.features.fp);
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EXPECT_FALSE(info.features.asimd);
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EXPECT_FALSE(info.features.evtstrm);
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EXPECT_TRUE(info.features.aes);
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EXPECT_FALSE(info.features.pmull);
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EXPECT_FALSE(info.features.sha1);
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EXPECT_FALSE(info.features.sha2);
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EXPECT_FALSE(info.features.crc32);
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EXPECT_FALSE(info.features.atomics);
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EXPECT_FALSE(info.features.fphp);
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EXPECT_FALSE(info.features.asimdhp);
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EXPECT_FALSE(info.features.cpuid);
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EXPECT_FALSE(info.features.asimdrdm);
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EXPECT_FALSE(info.features.jscvt);
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EXPECT_FALSE(info.features.fcma);
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EXPECT_FALSE(info.features.lrcpc);
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EXPECT_FALSE(info.features.dcpop);
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EXPECT_FALSE(info.features.sha3);
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EXPECT_FALSE(info.features.sm3);
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EXPECT_FALSE(info.features.sm4);
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EXPECT_FALSE(info.features.asimddp);
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EXPECT_FALSE(info.features.sha512);
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EXPECT_FALSE(info.features.sve);
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EXPECT_FALSE(info.features.asimdfhm);
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EXPECT_FALSE(info.features.dit);
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EXPECT_FALSE(info.features.uscat);
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EXPECT_FALSE(info.features.ilrcpc);
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EXPECT_FALSE(info.features.flagm);
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EXPECT_FALSE(info.features.ssbs);
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EXPECT_FALSE(info.features.sb);
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EXPECT_FALSE(info.features.paca);
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EXPECT_FALSE(info.features.pacg);
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}
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TEST(CpuinfoAarch64Test, FromHardwareCap2)
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{
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ResetHwcaps();
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SetHardwareCapabilities(AARCH64_HWCAP_FP,
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AARCH64_HWCAP2_SVE2 | AARCH64_HWCAP2_BTI);
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GetEmptyFilesystem(); // disabling /proc/cpuinfo
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const auto info = GetAarch64Info();
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EXPECT_TRUE(info.features.fp);
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EXPECT_TRUE(info.features.sve2);
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EXPECT_TRUE(info.features.bti);
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EXPECT_FALSE(info.features.dcpodp);
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EXPECT_FALSE(info.features.sveaes);
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EXPECT_FALSE(info.features.svepmull);
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EXPECT_FALSE(info.features.svebitperm);
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EXPECT_FALSE(info.features.svesha3);
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EXPECT_FALSE(info.features.svesm4);
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EXPECT_FALSE(info.features.flagm2);
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EXPECT_FALSE(info.features.frint);
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EXPECT_FALSE(info.features.svei8mm);
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EXPECT_FALSE(info.features.svef32mm);
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EXPECT_FALSE(info.features.svef64mm);
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EXPECT_FALSE(info.features.svebf16);
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EXPECT_FALSE(info.features.i8mm);
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EXPECT_FALSE(info.features.bf16);
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EXPECT_FALSE(info.features.dgh);
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EXPECT_FALSE(info.features.rng);
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}
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TEST(CpuinfoAarch64Test, ARMCortexA53)
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{
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ResetHwcaps();
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auto& fs = GetEmptyFilesystem();
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fs.CreateFile("/proc/cpuinfo",
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R"(Processor : AArch64 Processor rev 3 (aarch64)
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processor : 0
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processor : 1
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processor : 2
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processor : 3
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processor : 4
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processor : 5
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processor : 6
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processor : 7
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Features : fp asimd evtstrm aes pmull sha1 sha2 crc32
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CPU implementer : 0x41
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CPU architecture: AArch64
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CPU variant : 0x0
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CPU part : 0xd03
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CPU revision : 3)");
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const auto info = GetAarch64Info();
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EXPECT_EQ(info.implementer, 0x41);
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EXPECT_EQ(info.variant, 0x0);
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EXPECT_EQ(info.part, 0xd03);
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EXPECT_EQ(info.revision, 3);
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EXPECT_TRUE(info.features.fp);
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EXPECT_TRUE(info.features.asimd);
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EXPECT_TRUE(info.features.evtstrm);
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EXPECT_TRUE(info.features.aes);
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EXPECT_TRUE(info.features.pmull);
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EXPECT_TRUE(info.features.sha1);
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EXPECT_TRUE(info.features.sha2);
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EXPECT_TRUE(info.features.crc32);
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EXPECT_FALSE(info.features.atomics);
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EXPECT_FALSE(info.features.fphp);
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EXPECT_FALSE(info.features.asimdhp);
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EXPECT_FALSE(info.features.cpuid);
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EXPECT_FALSE(info.features.asimdrdm);
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EXPECT_FALSE(info.features.jscvt);
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EXPECT_FALSE(info.features.fcma);
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EXPECT_FALSE(info.features.lrcpc);
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EXPECT_FALSE(info.features.dcpop);
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EXPECT_FALSE(info.features.sha3);
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EXPECT_FALSE(info.features.sm3);
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EXPECT_FALSE(info.features.sm4);
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EXPECT_FALSE(info.features.asimddp);
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EXPECT_FALSE(info.features.sha512);
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EXPECT_FALSE(info.features.sve);
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EXPECT_FALSE(info.features.asimdfhm);
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EXPECT_FALSE(info.features.dit);
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EXPECT_FALSE(info.features.uscat);
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EXPECT_FALSE(info.features.ilrcpc);
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EXPECT_FALSE(info.features.flagm);
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EXPECT_FALSE(info.features.ssbs);
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EXPECT_FALSE(info.features.sb);
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EXPECT_FALSE(info.features.paca);
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EXPECT_FALSE(info.features.pacg);
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EXPECT_FALSE(info.features.dcpodp);
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EXPECT_FALSE(info.features.sve2);
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EXPECT_FALSE(info.features.sveaes);
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EXPECT_FALSE(info.features.svepmull);
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EXPECT_FALSE(info.features.svebitperm);
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EXPECT_FALSE(info.features.svesha3);
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EXPECT_FALSE(info.features.svesm4);
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EXPECT_FALSE(info.features.flagm2);
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EXPECT_FALSE(info.features.frint);
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EXPECT_FALSE(info.features.svei8mm);
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EXPECT_FALSE(info.features.svef32mm);
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EXPECT_FALSE(info.features.svef64mm);
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EXPECT_FALSE(info.features.svebf16);
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EXPECT_FALSE(info.features.i8mm);
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EXPECT_FALSE(info.features.bf16);
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EXPECT_FALSE(info.features.dgh);
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EXPECT_FALSE(info.features.rng);
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EXPECT_FALSE(info.features.bti);
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EXPECT_FALSE(info.features.mte);
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EXPECT_FALSE(info.features.ecv);
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EXPECT_FALSE(info.features.afp);
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EXPECT_FALSE(info.features.rpres);
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}
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#endif // CPU_FEATURES_OS_LINUX
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#if defined(CPU_FEATURES_OS_WINDOWS)
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TEST_F(CpuidAarch64Test, WINDOWS_AARCH64_RPI4)
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{
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cpu().SetWindowsNativeSystemInfoProcessorRevision(0x03);
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cpu().SetWindowsIsProcessorFeaturePresent(PF_ARM_VFP_32_REGISTERS_AVAILABLE);
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cpu().SetWindowsIsProcessorFeaturePresent(PF_ARM_NEON_INSTRUCTIONS_AVAILABLE);
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cpu().SetWindowsIsProcessorFeaturePresent(
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PF_ARM_V8_CRC32_INSTRUCTIONS_AVAILABLE);
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const auto info = GetAarch64Info();
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EXPECT_EQ(info.revision, 0x03);
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EXPECT_TRUE(info.features.fp);
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EXPECT_TRUE(info.features.asimd);
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EXPECT_TRUE(info.features.crc32);
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EXPECT_FALSE(info.features.aes);
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EXPECT_FALSE(info.features.sha1);
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EXPECT_FALSE(info.features.sha2);
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EXPECT_FALSE(info.features.pmull);
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EXPECT_FALSE(info.features.atomics);
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EXPECT_FALSE(info.features.asimddp);
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EXPECT_FALSE(info.features.jscvt);
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EXPECT_FALSE(info.features.lrcpc);
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}
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#endif // CPU_FEATURES_OS_WINDOWS
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} // namespace
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} // namespace cpu_features
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