Improve AVX512 feature detection

libc/intrin/x86.c

@@ -12,135 +12,9 @@
 //
 //===----------------------------------------------------------------------===//
 #if defined(__x86_64__) && (defined(__GNUC__) || defined(__clang__))
+#include "libc/intrin/x86.h"
 
-enum VendorSignatures {
-  SIG_INTEL = 0x756e6547,  // Genu
-  SIG_AMD = 0x68747541,    // Auth
-};
-
-enum ProcessorVendors {
-  VENDOR_INTEL = 1,
-  VENDOR_AMD,
-  VENDOR_OTHER,
-  VENDOR_MAX
-};
-
-enum ProcessorTypes {
-  INTEL_BONNELL = 1,
-  INTEL_CORE2,
-  INTEL_COREI7,
-  AMDFAM10H,
-  AMDFAM15H,
-  INTEL_SILVERMONT,
-  INTEL_KNL,
-  AMD_BTVER1,
-  AMD_BTVER2,
-  AMDFAM17H,
-  INTEL_KNM,
-  INTEL_GOLDMONT,
-  INTEL_GOLDMONT_PLUS,
-  INTEL_TREMONT,
-  AMDFAM19H,
-  ZHAOXIN_FAM7H,
-  INTEL_SIERRAFOREST,
-  INTEL_GRANDRIDGE,
-  INTEL_CLEARWATERFOREST,
-  CPU_TYPE_MAX
-};
-
-enum ProcessorSubtypes {
-  INTEL_COREI7_NEHALEM = 1,
-  INTEL_COREI7_WESTMERE,
-  INTEL_COREI7_SANDYBRIDGE,
-  AMDFAM10H_BARCELONA,
-  AMDFAM10H_SHANGHAI,
-  AMDFAM10H_ISTANBUL,
-  AMDFAM15H_BDVER1,
-  AMDFAM15H_BDVER2,
-  AMDFAM15H_BDVER3,
-  AMDFAM15H_BDVER4,
-  AMDFAM17H_ZNVER1,
-  INTEL_COREI7_IVYBRIDGE,
-  INTEL_COREI7_HASWELL,
-  INTEL_COREI7_BROADWELL,
-  INTEL_COREI7_SKYLAKE,
-  INTEL_COREI7_SKYLAKE_AVX512,
-  INTEL_COREI7_CANNONLAKE,
-  INTEL_COREI7_ICELAKE_CLIENT,
-  INTEL_COREI7_ICELAKE_SERVER,
-  AMDFAM17H_ZNVER2,
-  INTEL_COREI7_CASCADELAKE,
-  INTEL_COREI7_TIGERLAKE,
-  INTEL_COREI7_COOPERLAKE,
-  INTEL_COREI7_SAPPHIRERAPIDS,
-  INTEL_COREI7_ALDERLAKE,
-  AMDFAM19H_ZNVER3,
-  INTEL_COREI7_ROCKETLAKE,
-  ZHAOXIN_FAM7H_LUJIAZUI,
-  AMDFAM19H_ZNVER4,
-  INTEL_COREI7_GRANITERAPIDS,
-  INTEL_COREI7_GRANITERAPIDS_D,
-  INTEL_COREI7_ARROWLAKE,
-  INTEL_COREI7_ARROWLAKE_S,
-  INTEL_COREI7_PANTHERLAKE,
-  CPU_SUBTYPE_MAX
-};
-
-enum ProcessorFeatures {
-  FEATURE_CMOV = 0,
-  FEATURE_MMX,
-  FEATURE_POPCNT,
-  FEATURE_SSE,
-  FEATURE_SSE2,
-  FEATURE_SSE3,
-  FEATURE_SSSE3,
-  FEATURE_SSE4_1,
-  FEATURE_SSE4_2,
-  FEATURE_AVX,
-  FEATURE_AVX2,
-  FEATURE_SSE4_A,
-  FEATURE_FMA4,
-  FEATURE_XOP,
-  FEATURE_FMA,
-  FEATURE_AVX512F,
-  FEATURE_BMI,
-  FEATURE_BMI2,
-  FEATURE_AES,
-  FEATURE_PCLMUL,
-  FEATURE_AVX512VL,
-  FEATURE_AVX512BW,
-  FEATURE_AVX512DQ,
-  FEATURE_AVX512CD,
-  FEATURE_AVX512ER,
-  FEATURE_AVX512PF,
-  FEATURE_AVX512VBMI,
-  FEATURE_AVX512IFMA,
-  FEATURE_AVX5124VNNIW,
-  FEATURE_AVX5124FMAPS,
-  FEATURE_AVX512VPOPCNTDQ,
-  FEATURE_AVX512VBMI2,
-  FEATURE_GFNI,
-  FEATURE_VPCLMULQDQ,
-  FEATURE_AVX512VNNI,
-  FEATURE_AVX512BITALG,
-  FEATURE_AVX512BF16,
-  FEATURE_AVX512VP2INTERSECT,
-
-  FEATURE_CMPXCHG16B = 46,
-  FEATURE_F16C = 49,
-  FEATURE_LAHF_LM = 54,
-  FEATURE_LM,
-  FEATURE_WP,
-  FEATURE_LZCNT,
-  FEATURE_MOVBE,
-
-  FEATURE_AVX512FP16 = 94,
-  FEATURE_X86_64_BASELINE,
-  FEATURE_X86_64_V2,
-  FEATURE_X86_64_V3,
-  FEATURE_X86_64_V4,
-  CPU_FEATURE_MAX
-};
+struct __processor_model __cpu_model;
 
 // The check below for i386 was copied from clang's cpuid.h (__get_cpuid_max).
 // Check motivated by bug reports for OpenSSL crashing on CPUs without CPUID
@@ -782,13 +656,6 @@ static void getAvailableFeatures(unsigned ECX, unsigned EDX, unsigned MaxLeaf,
 #undef setFeature
 }
 
-struct __processor_model {
-  unsigned int __cpu_vendor;
-  unsigned int __cpu_type;
-  unsigned int __cpu_subtype;
-  unsigned int __cpu_features[1];
-} __cpu_model = {0, 0, 0, {0}};
-
 unsigned __cpu_features2[(CPU_FEATURE_MAX - 1) / 32];
 
 // A constructor function that is sets __cpu_model and __cpu_features2 with