[NFC] encapsulate fake cpu instance in x86 test

1 files changed, 72 insertions, 68 deletions

diff --git a/test/cpuinfo_x86_test.cc b/test/cpuinfo_x86_test.cc
index 89fc3a1..d3373c9 100644
--- a/test/cpuinfo_x86_test.cc
+++ b/test/cpuinfo_x86_test.cc
@@ -79,23 +79,28 @@ class FakeCpu {
   uint32_t xcr0_eax_;
 };
 
-FakeCpu* g_fake_cpu = nullptr;
+static FakeCpu* g_fake_cpu_instance = nullptr;
+
+static FakeCpu& cpu() {
+  assert(g_fake_cpu_instance != nullptr);
+  return *g_fake_cpu_instance;
+}
 
 extern "C" Leaf GetCpuidLeaf(uint32_t leaf_id, int ecx) {
-  return g_fake_cpu->GetCpuidLeaf(leaf_id, ecx);
+  return cpu().GetCpuidLeaf(leaf_id, ecx);
 }
 
-extern "C" uint32_t GetXCR0Eax(void) { return g_fake_cpu->GetXCR0Eax(); }
+extern "C" uint32_t GetXCR0Eax(void) { return cpu().GetXCR0Eax(); }
 
 #if defined(CPU_FEATURES_OS_DARWIN)
 extern "C" bool GetDarwinSysCtlByName(const char* name) {
-  return g_fake_cpu->GetDarwinSysCtlByName(name);
+  return cpu().GetDarwinSysCtlByName(name);
 }
 #endif  // CPU_FEATURES_OS_DARWIN
 
 #if defined(CPU_FEATURES_OS_WINDOWS)
 extern "C" bool GetWindowsIsProcessorFeaturePresent(DWORD ProcessorFeature) {
-  return g_fake_cpu->GetWindowsIsProcessorFeaturePresent(ProcessorFeature);
+  return cpu().GetWindowsIsProcessorFeaturePresent(ProcessorFeature);
 }
 #endif  // CPU_FEATURES_OS_WINDOWS
 
@@ -103,13 +108,19 @@ namespace {
 
 class CpuidX86Test : public ::testing::Test {
  protected:
-  void SetUp() override { g_fake_cpu = new FakeCpu(); }
-  void TearDown() override { delete g_fake_cpu; }
+  void SetUp() override {
+    assert(g_fake_cpu_instance == nullptr);
+    g_fake_cpu_instance = new FakeCpu();
+  }
+  void TearDown() override {
+    delete g_fake_cpu_instance;
+    g_fake_cpu_instance = nullptr;
+  }
 };
 
 TEST_F(CpuidX86Test, SandyBridge) {
-  g_fake_cpu->SetOsBackupsExtendedRegisters(true);
-  g_fake_cpu->SetLeaves({
+  cpu().SetOsBackupsExtendedRegisters(true);
+  cpu().SetLeaves({
       {{0x00000000, 0}, Leaf{0x0000000D, 0x756E6547, 0x6C65746E, 0x49656E69}},
       {{0x00000001, 0}, Leaf{0x000206A6, 0x00100800, 0x1F9AE3BF, 0xBFEBFBFF}},
       {{0x00000007, 0}, Leaf{0x00000000, 0x00000000, 0x00000000, 0x00000000}},
@@ -155,22 +166,22 @@ const int KiB = 1024;
 const int MiB = 1024 * KiB;
 
 TEST_F(CpuidX86Test, SandyBridgeTestOsSupport) {
-  g_fake_cpu->SetLeaves({
+  cpu().SetLeaves({
       {{0x00000000, 0}, Leaf{0x0000000D, 0x756E6547, 0x6C65746E, 0x49656E69}},
       {{0x00000001, 0}, Leaf{0x000206A6, 0x00100800, 0x1F9AE3BF, 0xBFEBFBFF}},
       {{0x00000007, 0}, Leaf{0x00000000, 0x00000000, 0x00000000, 0x00000000}},
   });
   // avx is disabled if os does not support backing up ymm registers.
-  g_fake_cpu->SetOsBackupsExtendedRegisters(false);
+  cpu().SetOsBackupsExtendedRegisters(false);
   EXPECT_FALSE(GetX86Info().features.avx);
   // avx is disabled if os does not support backing up ymm registers.
-  g_fake_cpu->SetOsBackupsExtendedRegisters(true);
+  cpu().SetOsBackupsExtendedRegisters(true);
   EXPECT_TRUE(GetX86Info().features.avx);
 }
 
 TEST_F(CpuidX86Test, SkyLake) {
-  g_fake_cpu->SetOsBackupsExtendedRegisters(true);
-  g_fake_cpu->SetLeaves({
+  cpu().SetOsBackupsExtendedRegisters(true);
+  cpu().SetLeaves({
       {{0x00000000, 0}, Leaf{0x00000016, 0x756E6547, 0x6C65746E, 0x49656E69}},
       {{0x00000001, 0}, Leaf{0x000406E3, 0x00100800, 0x7FFAFBBF, 0xBFEBFBFF}},
       {{0x00000007, 0}, Leaf{0x00000000, 0x029C67AF, 0x00000000, 0x00000000}},
@@ -184,7 +195,7 @@ TEST_F(CpuidX86Test, SkyLake) {
 }
 
 TEST_F(CpuidX86Test, Branding) {
-  g_fake_cpu->SetLeaves({
+  cpu().SetLeaves({
       {{0x00000000, 0}, Leaf{0x00000016, 0x756E6547, 0x6C65746E, 0x49656E69}},
       {{0x00000001, 0}, Leaf{0x000406E3, 0x00100800, 0x7FFAFBBF, 0xBFEBFBFF}},
       {{0x00000007, 0}, Leaf{0x00000000, 0x029C67AF, 0x00000000, 0x00000000}},
@@ -200,7 +211,7 @@ TEST_F(CpuidX86Test, Branding) {
 }
 
 TEST_F(CpuidX86Test, KabyLakeCache) {
-  g_fake_cpu->SetLeaves({
+  cpu().SetLeaves({
       {{0x00000000, 0}, Leaf{0x00000016, 0x756E6547, 0x6C65746E, 0x49656E69}},
       {{0x00000001, 0}, Leaf{0x000406E3, 0x00100800, 0x7FFAFBBF, 0xBFEBFBFF}},
       {{0x00000004, 0}, Leaf{0x1C004121, 0x01C0003F, 0x0000003F, 0x00000000}},
@@ -249,7 +260,7 @@ TEST_F(CpuidX86Test, KabyLakeCache) {
 }
 
 TEST_F(CpuidX86Test, HSWCache) {
-  g_fake_cpu->SetLeaves({
+  cpu().SetLeaves({
       {{0x00000000, 0}, Leaf{0x00000016, 0x756E6547, 0x6C65746E, 0x49656E69}},
       {{0x00000001, 0}, Leaf{0x000406E3, 0x00100800, 0x7FFAFBBF, 0xBFEBFBFF}},
       {{0x00000004, 0}, Leaf{0x1C004121, 0x01C0003F, 0x0000003F, 0x00000000}},
@@ -299,7 +310,7 @@ TEST_F(CpuidX86Test, HSWCache) {
 
 // http://users.atw.hu/instlatx64/AuthenticAMD/AuthenticAMD0200F30_K11_Griffin_CPUID.txt
 TEST_F(CpuidX86Test, AMD_K11_GRIFFIN) {
-  g_fake_cpu->SetLeaves({
+  cpu().SetLeaves({
       {{0x00000000, 0}, Leaf{0x00000001, 0x68747541, 0x444D4163, 0x69746E65}},
       {{0x00000001, 0}, Leaf{0x00200F30, 0x00020800, 0x00002001, 0x178BFBFF}},
       {{0x80000000, 0}, Leaf{0x8000001A, 0x68747541, 0x444D4163, 0x69746E65}},
@@ -315,7 +326,7 @@ TEST_F(CpuidX86Test, AMD_K11_GRIFFIN) {
 
 // http://users.atw.hu/instlatx64/AuthenticAMD/AuthenticAMD0300F10_K12_Llano_CPUID.txt
 TEST_F(CpuidX86Test, AMD_K12_LLANO) {
-  g_fake_cpu->SetLeaves({
+  cpu().SetLeaves({
       {{0x00000000, 0}, Leaf{0x00000006, 0x68747541, 0x444D4163, 0x69746E65}},
       {{0x00000001, 0}, Leaf{0x00300F10, 0x00040800, 0x00802009, 0x178BFBFF}},
       {{0x80000000, 0}, Leaf{0x8000001B, 0x68747541, 0x444D4163, 0x69746E65}},
@@ -331,7 +342,7 @@ TEST_F(CpuidX86Test, AMD_K12_LLANO) {
 
 // http://users.atw.hu/instlatx64/AuthenticAMD/AuthenticAMD0500F01_K14_Bobcat_CPUID.txt
 TEST_F(CpuidX86Test, AMD_K14_BOBCAT_AMD0500F01) {
-  g_fake_cpu->SetLeaves({
+  cpu().SetLeaves({
       {{0x00000000, 0}, Leaf{0x00000006, 0x68747541, 0x444D4163, 0x69746E65}},
       {{0x00000001, 0}, Leaf{0x00500F01, 0x00020800, 0x00802209, 0x178BFBFF}},
       {{0x80000000, 0}, Leaf{0x8000001B, 0x68747541, 0x444D4163, 0x69746E65}},
@@ -347,7 +358,7 @@ TEST_F(CpuidX86Test, AMD_K14_BOBCAT_AMD0500F01) {
 
 // http://users.atw.hu/instlatx64/AuthenticAMD/AuthenticAMD0500F10_K14_Bobcat_CPUID.txt
 TEST_F(CpuidX86Test, AMD_K14_BOBCAT_AMD0500F10) {
-  g_fake_cpu->SetLeaves({
+  cpu().SetLeaves({
       {{0x00000000, 0}, Leaf{0x00000006, 0x68747541, 0x444D4163, 0x69746E65}},
       {{0x00000001, 0}, Leaf{0x00500F10, 0x00020800, 0x00802209, 0x178BFBFF}},
       {{0x00000002, 0}, Leaf{0x00000000, 0x00000000, 0x00000000, 0x00000000}},
@@ -371,7 +382,7 @@ TEST_F(CpuidX86Test, AMD_K14_BOBCAT_AMD0500F10) {
 
 // http://users.atw.hu/instlatx64/AuthenticAMD/AuthenticAMD0500F20_K14_Bobcat_CPUID.txt
 TEST_F(CpuidX86Test, AMD_K14_BOBCAT_AMD0500F20) {
-  g_fake_cpu->SetLeaves({
+  cpu().SetLeaves({
       {{0x00000000, 0}, Leaf{0x00000006, 0x68747541, 0x444D4163, 0x69746E65}},
       {{0x00000001, 0}, Leaf{0x00500F20, 0x00020800, 0x00802209, 0x178BFBFF}},
       {{0x80000000, 0}, Leaf{0x8000001B, 0x68747541, 0x444D4163, 0x69746E65}},
@@ -387,7 +398,7 @@ TEST_F(CpuidX86Test, AMD_K14_BOBCAT_AMD0500F20) {
 
 // http://users.atw.hu/instlatx64/AuthenticAMD/AuthenticAMD0670F00_K15_StoneyRidge_CPUID.txt
 TEST_F(CpuidX86Test, AMD_K15_EXCAVATOR_STONEY_RIDGE) {
-  g_fake_cpu->SetLeaves({
+  cpu().SetLeaves({
       {{0x00000000, 0}, Leaf{0x0000000D, 0x68747541, 0x444D4163, 0x69746E65}},
       {{0x00000001, 0}, Leaf{0x00670F00, 0x00020800, 0x7ED8320B, 0x178BFBFF}},
       {{0x00000007, 0}, Leaf{0x00000000, 0x000001A9, 0x00000000, 0x00000000}},
@@ -412,7 +423,7 @@ TEST_F(CpuidX86Test, AMD_K15_EXCAVATOR_STONEY_RIDGE) {
 
 // http://users.atw.hu/instlatx64/AuthenticAMD/AuthenticAMD0600F20_K15_AbuDhabi_CPUID0.txt
 TEST_F(CpuidX86Test, AMD_K15_PILEDRIVER_ABU_DHABI) {
-  g_fake_cpu->SetLeaves({
+  cpu().SetLeaves({
       {{0x00000000, 0}, Leaf{0x0000000D, 0x68747541, 0x444D4163, 0x69746E65}},
       {{0x00000001, 0}, Leaf{0x00600F20, 0x00100800, 0x3E98320B, 0x178BFBFF}},
       {{0x00000007, 0}, Leaf{0x00000000, 0x00000008, 0x00000000, 0x00000000}},
@@ -437,7 +448,7 @@ TEST_F(CpuidX86Test, AMD_K15_PILEDRIVER_ABU_DHABI) {
 
 // http://users.atw.hu/instlatx64/AuthenticAMD/AuthenticAMD0600F20_K15_AbuDhabi_CPUID0.txt
 TEST_F(CpuidX86Test, AMD_K15_PILEDRIVER_ABU_DHABI_CACHE_INFO) {
-  g_fake_cpu->SetLeaves({
+  cpu().SetLeaves({
       {{0x00000000, 0}, Leaf{0x0000000D, 0x68747541, 0x444D4163, 0x69746E65}},
       {{0x00000001, 0}, Leaf{0x00600F20, 0x00100800, 0x3E98320B, 0x178BFBFF}},
       {{0x80000000, 0}, Leaf{0x8000001E, 0x68747541, 0x444D4163, 0x69746E65}},
@@ -485,7 +496,7 @@ TEST_F(CpuidX86Test, AMD_K15_PILEDRIVER_ABU_DHABI_CACHE_INFO) {
 
 // http://users.atw.hu/instlatx64/AuthenticAMD/AuthenticAMD0600F12_K15_Interlagos_CPUID3.txt
 TEST_F(CpuidX86Test, AMD_K15_BULLDOZER_INTERLAGOS) {
-  g_fake_cpu->SetLeaves({
+  cpu().SetLeaves({
       {{0x00000000, 0}, Leaf{0x0000000D, 0x68747541, 0x444D4163, 0x69746E65}},
       {{0x00000001, 0}, Leaf{0x00600F12, 0x000C0800, 0x1E98220B, 0x178BFBFF}},
       {{0x00000007, 0}, Leaf{0x00000000, 0x00000000, 0x00000000, 0x00000000}},
@@ -510,7 +521,7 @@ TEST_F(CpuidX86Test, AMD_K15_BULLDOZER_INTERLAGOS) {
 
 // http://users.atw.hu/instlatx64/AuthenticAMD0630F81_K15_Godavari_CPUID.txt
 TEST_F(CpuidX86Test, AMD_K15_STREAMROLLER_GODAVARI) {
-  g_fake_cpu->SetLeaves({
+  cpu().SetLeaves({
       {{0x00000000, 0}, Leaf{0x0000000D, 0x68747541, 0x444D4163, 0x69746E65}},
       {{0x00000001, 0}, Leaf{0x00630F81, 0x00040800, 0x3E98320B, 0x178BFBFF}},
       {{0x00000007, 0}, Leaf{0x00000000, 0x00000000, 0x00000000, 0x00000000}},
@@ -537,7 +548,7 @@ TEST_F(CpuidX86Test, AMD_K15_STREAMROLLER_GODAVARI) {
 
 // http://users.atw.hu/instlatx64/AuthenticAMD/AuthenticAMD0700F01_K16_Kabini_CPUID.txt
 TEST_F(CpuidX86Test, AMD_K16_JAGUAR_KABINI) {
-  g_fake_cpu->SetLeaves({
+  cpu().SetLeaves({
       {{0x00000000, 0}, Leaf{0x0000000D, 0x68747541, 0x444D4163, 0x69746E65}},
       {{0x00000001, 0}, Leaf{0x00700F01, 0x00040800, 0x3ED8220B, 0x178BFBFF}},
       {{0x00000007, 0}, Leaf{0x00000000, 0x00000008, 0x00000000, 0x00000000}},
@@ -561,7 +572,7 @@ TEST_F(CpuidX86Test, AMD_K16_JAGUAR_KABINI) {
 
 // http://users.atw.hu/instlatx64/AuthenticAMD/AuthenticAMD0730F01_K16_Beema_CPUID2.txt
 TEST_F(CpuidX86Test, AMD_K16_PUMA_BEEMA) {
-  g_fake_cpu->SetLeaves({
+  cpu().SetLeaves({
       {{0x00000000, 0}, Leaf{0x0000000D, 0x68747541, 0x444D4163, 0x69746E65}},
       {{0x00000001, 0}, Leaf{0x00730F01, 0x00040800, 0x7ED8220B, 0x178BFBFF}},
       {{0x00000007, 0}, Leaf{0x00000000, 0x00000008, 0x00000000, 0x00000000}},
@@ -585,7 +596,7 @@ TEST_F(CpuidX86Test, AMD_K16_PUMA_BEEMA) {
 
 // http://users.atw.hu/instlatx64/AuthenticAMD/AuthenticAMD0820F01_K17_Dali_CPUID.txt
 TEST_F(CpuidX86Test, AMD_K17_ZEN_DALI) {
-  g_fake_cpu->SetLeaves({
+  cpu().SetLeaves({
       {{0x00000000, 0}, Leaf{0x0000000D, 0x68747541, 0x444D4163, 0x69746E65}},
       {{0x00000001, 0}, Leaf{0x00820F01, 0x00020800, 0x7ED8320B, 0x178BFBFF}},
       {{0x00000007, 0}, Leaf{0x00000000, 0x209C01A9, 0x00000000, 0x00000000}},
@@ -609,7 +620,7 @@ TEST_F(CpuidX86Test, AMD_K17_ZEN_DALI) {
 
 // http://users.atw.hu/instlatx64/AuthenticAMD/AuthenticAMD0800F82_K17_ZenP_CPUID.txt
 TEST_F(CpuidX86Test, AMD_K17_ZEN_PLUS_PINNACLE_RIDGE) {
-  g_fake_cpu->SetLeaves({
+  cpu().SetLeaves({
       {{0x00000000, 0}, Leaf{0x0000000D, 0x68747541, 0x444D4163, 0x69746E65}},
       {{0x00000001, 0}, Leaf{0x00800F82, 0x00100800, 0x7ED8320B, 0x178BFBFF}},
       {{0x00000007, 0}, Leaf{0x00000000, 0x209C01A9, 0x00000000, 0x00000000}},
@@ -633,7 +644,7 @@ TEST_F(CpuidX86Test, AMD_K17_ZEN_PLUS_PINNACLE_RIDGE) {
 
 // http://users.atw.hu/instlatx64/AuthenticAMD/AuthenticAMD0840F70_K17_CPUID.txt
 TEST_F(CpuidX86Test, AMD_K17_ZEN2_XBOX_SERIES_X) {
-  g_fake_cpu->SetLeaves({
+  cpu().SetLeaves({
       {{0x00000000, 0}, Leaf{0x00000010, 0x68747541, 0x444D4163, 0x69746E65}},
       {{0x00000001, 0}, Leaf{0x00840F70, 0x00100800, 0x7ED8320B, 0x178BFBFF}},
       {{0x00000007, 0}, Leaf{0x00000000, 0x219C91A9, 0x00400004, 0x00000000}},
@@ -657,7 +668,7 @@ TEST_F(CpuidX86Test, AMD_K17_ZEN2_XBOX_SERIES_X) {
 
 // http://users.atw.hu/instlatx64/HygonGenuine/HygonGenuine0900F02_Hygon_CPUID3.txt
 TEST_F(CpuidX86Test, AMD_K18_ZEN_DHYANA) {
-  g_fake_cpu->SetLeaves({
+  cpu().SetLeaves({
       {{0x00000000, 0}, Leaf{0x0000000D, 0x6F677948, 0x656E6975, 0x6E65476E}},
       {{0x00000001, 0}, Leaf{0x00900F02, 0x00100800, 0x74D83209, 0x178BFBFF}},
       {{0x00000007, 0}, Leaf{0x00000000, 0x009C01A9, 0x0040068C, 0x00000000}},
@@ -681,7 +692,7 @@ TEST_F(CpuidX86Test, AMD_K18_ZEN_DHYANA) {
 
 // http://users.atw.hu/instlatx64/HygonGenuine/HygonGenuine0900F02_Hygon_CPUID.txt
 TEST_F(CpuidX86Test, AMD_K18_ZEN_DHYANA_CACHE_INFO) {
-  g_fake_cpu->SetLeaves({
+  cpu().SetLeaves({
       {{0x00000000, 0}, Leaf{0x0000000D, 0x6F677948, 0x656E6975, 0x6E65476E}},
       {{0x00000001, 0}, Leaf{0x00900F02, 0x00100800, 0x74D83209, 0x178BFBFF}},
       {{0x80000000, 0}, Leaf{0x8000001F, 0x6F677948, 0x656E6975, 0x6E65476E}},
@@ -729,7 +740,7 @@ TEST_F(CpuidX86Test, AMD_K18_ZEN_DHYANA_CACHE_INFO) {
 
 // http://users.atw.hu/instlatx64/AuthenticAMD/AuthenticAMD0A20F10_K19_Vermeer2_CPUID.txt
 TEST_F(CpuidX86Test, AMD_K19_ZEN3_VERMEER) {
-  g_fake_cpu->SetLeaves({
+  cpu().SetLeaves({
       {{0x00000000, 0}, Leaf{0x00000010, 0x68747541, 0x444D4163, 0x69746E65}},
       {{0x00000001, 0}, Leaf{0x00A20F10, 0x01180800, 0x7ED8320B, 0x178BFBFF}},
       {{0x00000007, 0}, Leaf{0x00000000, 0x219C97A9, 0x0040068C, 0x00000000}},
@@ -754,21 +765,18 @@ TEST_F(CpuidX86Test, AMD_K19_ZEN3_VERMEER) {
 // https://github.com/InstLatx64/InstLatx64/blob/master/GenuineIntel/GenuineIntel00106A1_Nehalem_CPUID.txt
 TEST_F(CpuidX86Test, Nehalem) {
   // Pre AVX cpus don't have xsave
-  g_fake_cpu->SetOsBackupsExtendedRegisters(false);
+  cpu().SetOsBackupsExtendedRegisters(false);
 #if defined(CPU_FEATURES_OS_WINDOWS)
-  g_fake_cpu->SetWindowsIsProcessorFeaturePresent(
-      PF_XMMI_INSTRUCTIONS_AVAILABLE);
-  g_fake_cpu->SetWindowsIsProcessorFeaturePresent(
-      PF_XMMI64_INSTRUCTIONS_AVAILABLE);
-  g_fake_cpu->SetWindowsIsProcessorFeaturePresent(
-      PF_SSE3_INSTRUCTIONS_AVAILABLE);
+  cpu().SetWindowsIsProcessorFeaturePresent(PF_XMMI_INSTRUCTIONS_AVAILABLE);
+  cpu().SetWindowsIsProcessorFeaturePresent(PF_XMMI64_INSTRUCTIONS_AVAILABLE);
+  cpu().SetWindowsIsProcessorFeaturePresent(PF_SSE3_INSTRUCTIONS_AVAILABLE);
 #elif defined(CPU_FEATURES_OS_DARWIN)
-  g_fake_cpu->SetDarwinSysCtlByName("hw.optional.sse");
-  g_fake_cpu->SetDarwinSysCtlByName("hw.optional.sse2");
-  g_fake_cpu->SetDarwinSysCtlByName("hw.optional.sse3");
-  g_fake_cpu->SetDarwinSysCtlByName("hw.optional.supplementalsse3");
-  g_fake_cpu->SetDarwinSysCtlByName("hw.optional.sse4_1");
-  g_fake_cpu->SetDarwinSysCtlByName("hw.optional.sse4_2");
+  cpu().SetDarwinSysCtlByName("hw.optional.sse");
+  cpu().SetDarwinSysCtlByName("hw.optional.sse2");
+  cpu().SetDarwinSysCtlByName("hw.optional.sse3");
+  cpu().SetDarwinSysCtlByName("hw.optional.supplementalsse3");
+  cpu().SetDarwinSysCtlByName("hw.optional.sse4_1");
+  cpu().SetDarwinSysCtlByName("hw.optional.sse4_2");
 #elif defined(CPU_FEATURES_OS_FREEBSD)
   auto& fs = GetEmptyFilesystem();
   fs.CreateFile("/var/run/dmesg.boot", R"(
@@ -785,7 +793,7 @@ real memory  = 2147418112 (2047 MB)
 flags           : fpu mmx sse sse2 sse3 ssse3 sse4_1 sse4_2
 )");
 #endif
-  g_fake_cpu->SetLeaves({
+  cpu().SetLeaves({
       {{0x00000000, 0}, Leaf{0x0000000B, 0x756E6547, 0x6C65746E, 0x49656E69}},
       {{0x00000001, 0}, Leaf{0x000106A2, 0x00100800, 0x00BCE3BD, 0xBFEBFBFF}},
       {{0x00000002, 0}, Leaf{0x55035A01, 0x00F0B0E3, 0x00000000, 0x09CA212C}},
@@ -839,21 +847,18 @@ flags           : fpu mmx sse sse2 sse3 ssse3 sse4_1 sse4_2
 // https://github.com/InstLatx64/InstLatx64/blob/master/GenuineIntel/GenuineIntel0030673_Silvermont3_CPUID.txt
 TEST_F(CpuidX86Test, Atom) {
   // Pre AVX cpus don't have xsave
-  g_fake_cpu->SetOsBackupsExtendedRegisters(false);
+  cpu().SetOsBackupsExtendedRegisters(false);
 #if defined(CPU_FEATURES_OS_WINDOWS)
-  g_fake_cpu->SetWindowsIsProcessorFeaturePresent(
-      PF_XMMI_INSTRUCTIONS_AVAILABLE);
-  g_fake_cpu->SetWindowsIsProcessorFeaturePresent(
-      PF_XMMI64_INSTRUCTIONS_AVAILABLE);
-  g_fake_cpu->SetWindowsIsProcessorFeaturePresent(
-      PF_SSE3_INSTRUCTIONS_AVAILABLE);
+  cpu().SetWindowsIsProcessorFeaturePresent(PF_XMMI_INSTRUCTIONS_AVAILABLE);
+  cpu().SetWindowsIsProcessorFeaturePresent(PF_XMMI64_INSTRUCTIONS_AVAILABLE);
+  cpu().SetWindowsIsProcessorFeaturePresent(PF_SSE3_INSTRUCTIONS_AVAILABLE);
 #elif defined(CPU_FEATURES_OS_DARWIN)
-  g_fake_cpu->SetDarwinSysCtlByName("hw.optional.sse");
-  g_fake_cpu->SetDarwinSysCtlByName("hw.optional.sse2");
-  g_fake_cpu->SetDarwinSysCtlByName("hw.optional.sse3");
-  g_fake_cpu->SetDarwinSysCtlByName("hw.optional.supplementalsse3");
-  g_fake_cpu->SetDarwinSysCtlByName("hw.optional.sse4_1");
-  g_fake_cpu->SetDarwinSysCtlByName("hw.optional.sse4_2");
+  cpu().SetDarwinSysCtlByName("hw.optional.sse");
+  cpu().SetDarwinSysCtlByName("hw.optional.sse2");
+  cpu().SetDarwinSysCtlByName("hw.optional.sse3");
+  cpu().SetDarwinSysCtlByName("hw.optional.supplementalsse3");
+  cpu().SetDarwinSysCtlByName("hw.optional.sse4_1");
+  cpu().SetDarwinSysCtlByName("hw.optional.sse4_2");
 #elif defined(CPU_FEATURES_OS_FREEBSD)
   auto& fs = GetEmptyFilesystem();
   fs.CreateFile("/var/run/dmesg.boot", R"(
@@ -870,7 +875,7 @@ real memory  = 2147418112 (2047 MB)
 flags           : fpu mmx sse sse2 sse3 ssse3 sse4_1 sse4_2
 )");
 #endif
-  g_fake_cpu->SetLeaves({
+  cpu().SetLeaves({
       {{0x00000000, 0}, Leaf{0x0000000B, 0x756E6547, 0x6C65746E, 0x49656E69}},
       {{0x00000001, 0}, Leaf{0x00030673, 0x00100800, 0x41D8E3BF, 0xBFEBFBFF}},
       {{0x00000002, 0}, Leaf{0x61B3A001, 0x0000FFC2, 0x00000000, 0x00000000}},
@@ -924,12 +929,11 @@ flags           : fpu mmx sse sse2 sse3 ssse3 sse4_1 sse4_2
 // https://github.com/InstLatx64/InstLatx64/blob/master/GenuineIntel/GenuineIntel0000673_P3_KatmaiDP_CPUID.txt
 TEST_F(CpuidX86Test, P3) {
   // Pre AVX cpus don't have xsave
-  g_fake_cpu->SetOsBackupsExtendedRegisters(false);
+  cpu().SetOsBackupsExtendedRegisters(false);
 #if defined(CPU_FEATURES_OS_WINDOWS)
-  g_fake_cpu->SetWindowsIsProcessorFeaturePresent(
-      PF_XMMI_INSTRUCTIONS_AVAILABLE);
+  cpu().SetWindowsIsProcessorFeaturePresent(PF_XMMI_INSTRUCTIONS_AVAILABLE);
 #elif defined(CPU_FEATURES_OS_DARWIN)
-  g_fake_cpu->SetDarwinSysCtlByName("hw.optional.sse");
+  cpu().SetDarwinSysCtlByName("hw.optional.sse");
 #elif defined(CPU_FEATURES_OS_FREEBSD)
   auto& fs = GetEmptyFilesystem();
   fs.CreateFile("/var/run/dmesg.boot", R"(
@@ -945,7 +949,7 @@ real memory  = 2147418112 (2047 MB)
 flags           : fpu mmx sse
 )");
 #endif
-  g_fake_cpu->SetLeaves({
+  cpu().SetLeaves({
       {{0x00000000, 0}, Leaf{0x00000003, 0x756E6547, 0x6C65746E, 0x49656E69}},
       {{0x00000001, 0}, Leaf{0x00000673, 0x00000000, 0x00000000, 0x0387FBFF}},
       {{0x00000002, 0}, Leaf{0x03020101, 0x00000000, 0x00000000, 0x0C040843}},