x86: Move cpuinfo.h from libgcc to common/config/i386

Both x86 backend and libgcc define enum processor_features.  libgcc sets
enum processor_feature and x86 backend checks enum processor_feature.
They are very easy out of sync and it has happened multiple times in the
past.

1. Move cpuinfo.h from libgcc to common/config/i386 so that we can share
the same enum processor_features in x86 backend and libgcc.
2. Change __cpu_features2 to an array to support more processor features.
3. Add more processor features to enum processor_features.

gcc/

	PR target/95259
	* common/config/i386/cpuinfo.h: New file.
	(__processor_model): Moved from libgcc/config/i386/cpuinfo.h.
	(__processor_model2): New.
	(CHECK___builtin_cpu_is): New.  Defined as empty if not defined.
	(has_cpu_feature): New function.
	(set_cpu_feature): Likewise.
	(get_amd_cpu): Moved from libgcc/config/i386/cpuinfo.c.  Use
	CHECK___builtin_cpu_is.  Return AMD CPU name.
	(get_intel_cpu): Moved from libgcc/config/i386/cpuinfo.c.  Use
	Use CHECK___builtin_cpu_is.  Return Intel CPU name.
	(get_available_features): Moved from libgcc/config/i386/cpuinfo.c.
	Also check FEATURE_3DNOW, FEATURE_3DNOWP, FEATURE_ADX,
	FEATURE_ABM, FEATURE_CLDEMOTE, FEATURE_CLFLUSHOPT, FEATURE_CLWB,
	FEATURE_CLZERO, FEATURE_CMPXCHG16B, FEATURE_CMPXCHG8B,
	FEATURE_ENQCMD, FEATURE_F16C, FEATURE_FSGSBASE, FEATURE_FXSAVE,
	FEATURE_HLE, FEATURE_IBT, FEATURE_LAHF_LM, FEATURE_LM,
	FEATURE_LWP, FEATURE_LZCNT, FEATURE_MOVBE, FEATURE_MOVDIR64B,
	FEATURE_MOVDIRI, FEATURE_MWAITX, FEATURE_OSXSAVE,
	FEATURE_PCONFIG, FEATURE_PKU, FEATURE_PREFETCHWT1, FEATURE_PRFCHW,
	FEATURE_PTWRITE, FEATURE_RDPID, FEATURE_RDRND, FEATURE_RDSEED,
	FEATURE_RTM, FEATURE_SERIALIZE, FEATURE_SGX, FEATURE_SHA,
	FEATURE_SHSTK, FEATURE_TBM, FEATURE_TSXLDTRK, FEATURE_VAES,
	FEATURE_WAITPKG, FEATURE_WBNOINVD, FEATURE_XSAVE, FEATURE_XSAVEC,
	FEATURE_XSAVEOPT and FEATURE_XSAVES
	(cpu_indicator_init): Moved from libgcc/config/i386/cpuinfo.c.
	Also update cpu_model2.
	* common/config/i386/i386-cpuinfo.h (processor_vendor): Add
	Add VENDOR_CENTAUR, VENDOR_CYRIX and VENDOR_NSC.
	(processor_features): Moved from gcc/config/i386/i386-builtins.c.
	Renamed F_XXX to FEATURE_XXX.  Add FEATURE_3DNOW, FEATURE_3DNOWP,
	FEATURE_ADX, FEATURE_ABM, FEATURE_CLDEMOTE, FEATURE_CLFLUSHOPT,
	FEATURE_CLWB, FEATURE_CLZERO, FEATURE_CMPXCHG16B,
	FEATURE_CMPXCHG8B, FEATURE_ENQCMD, FEATURE_F16C,
	FEATURE_FSGSBASE, FEATURE_FXSAVE, FEATURE_HLE, FEATURE_IBT,
	FEATURE_LAHF_LM, FEATURE_LM, FEATURE_LWP, FEATURE_LZCNT,
	FEATURE_MOVBE, FEATURE_MOVDIR64B, FEATURE_MOVDIRI,
	FEATURE_MWAITX, FEATURE_OSXSAVE, FEATURE_PCONFIG,
	FEATURE_PKU, FEATURE_PREFETCHWT1, FEATURE_PRFCHW,
	FEATURE_PTWRITE, FEATURE_RDPID, FEATURE_RDRND, FEATURE_RDSEED,
	FEATURE_RTM, FEATURE_SERIALIZE, FEATURE_SGX, FEATURE_SHA,
	FEATURE_SHSTK, FEATURE_TBM, FEATURE_TSXLDTRK, FEATURE_VAES,
	FEATURE_WAITPKG, FEATURE_WBNOINVD, FEATURE_XSAVE, FEATURE_XSAVEC,
	FEATURE_XSAVEOPT, FEATURE_XSAVES and CPU_FEATURE_MAX.
	(SIZE_OF_CPU_FEATURES): New.
	* config/i386/i386-builtins.c (processor_features): Removed.
	(isa_names_table): Replace F_XXX with FEATURE_XXX.
	(fold_builtin_cpu): Change __cpu_features2 to an array.

libgcc/

	PR target/95259
	* config/i386/cpuinfo.c: Don't include "cpuinfo.h".  Include
	"common/config/i386/i386-cpuinfo.h" and
	"common/config/i386/cpuinfo.h".
	(__cpu_features2): Changed to array.
	(get_amd_cpu): Removed.
	(get_intel_cpu): Likewise.
	(get_available_features): Likewise.
	(__cpu_indicator_init): Call cpu_indicator_init.
	* config/i386/cpuinfo.h: Removed.

2 files changed, 9 insertions, 592 deletions

diff --git a/libgcc/config/i386/cpuinfo.c b/libgcc/config/i386/cpuinfo.c
index cf5f088..7218952 100644
--- a/libgcc/config/i386/cpuinfo.c
+++ b/libgcc/config/i386/cpuinfo.c
@@ -26,7 +26,8 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 #include "cpuid.h"
 #include "tsystem.h"
 #include "auto-target.h"
-#include "cpuinfo.h"
+#include "common/config/i386/i386-cpuinfo.h"
+#include "common/config/i386/cpuinfo.h"
 
 #ifdef HAVE_INIT_PRIORITY
 #define CONSTRUCTOR_PRIORITY (101)
@@ -39,386 +40,14 @@ int __cpu_indicator_init (void)
 
 
 struct __processor_model __cpu_model = { };
-#ifndef SHARED
 /* We want to move away from __cpu_model in libgcc_s.so.1 and the
    size of __cpu_model is part of ABI.  So, new features that don't
    fit into __cpu_model.__cpu_features[0] go into extra variables
-   in libgcc.a only, preferrably hidden.  */
-unsigned int __cpu_features2;
-#endif
-
-
-/* Get the specific type of AMD CPU.  */
-
-static void
-get_amd_cpu (unsigned int family, unsigned int model)
-{
-  switch (family)
-    {
-    /* AMD Family 10h.  */
-    case 0x10:
-      __cpu_model.__cpu_type = AMDFAM10H;
-      switch (model)
-	{
-	case 0x2:
-	  /* Barcelona.  */
-	  __cpu_model.__cpu_subtype = AMDFAM10H_BARCELONA;
-	  break;
-	case 0x4:
-	  /* Shanghai.  */
-	  __cpu_model.__cpu_subtype = AMDFAM10H_SHANGHAI;
-	  break;
-	case 0x8:
-	  /* Istanbul.  */
-	  __cpu_model.__cpu_subtype = AMDFAM10H_ISTANBUL;
-	  break;
-	default:
-	  break;
-	}
-      break;
-    /* AMD Family 14h "btver1". */
-    case 0x14:
-      __cpu_model.__cpu_type = AMD_BTVER1;
-      break;
-    /* AMD Family 15h "Bulldozer".  */
-    case 0x15:
-      __cpu_model.__cpu_type = AMDFAM15H;
-
-      if (model == 0x2)
-	__cpu_model.__cpu_subtype = AMDFAM15H_BDVER2;      
-      /* Bulldozer version 1.  */
-      else if (model <= 0xf)
-	__cpu_model.__cpu_subtype = AMDFAM15H_BDVER1;
-      /* Bulldozer version 2 "Piledriver" */
-      else if (model <= 0x2f)
-	__cpu_model.__cpu_subtype = AMDFAM15H_BDVER2;      
-      /* Bulldozer version 3 "Steamroller"  */
-      else if (model <= 0x4f)
-	__cpu_model.__cpu_subtype = AMDFAM15H_BDVER3;
-      /* Bulldozer version 4 "Excavator"   */
-      else if (model <= 0x7f)
-	__cpu_model.__cpu_subtype = AMDFAM15H_BDVER4;
-      break;
-    /* AMD Family 16h "btver2" */
-    case 0x16:
-      __cpu_model.__cpu_type = AMD_BTVER2;
-      break;
-    case 0x17:
-      __cpu_model.__cpu_type = AMDFAM17H;
-      /* AMD family 17h version 1.  */
-      if (model <= 0x1f)
-	__cpu_model.__cpu_subtype = AMDFAM17H_ZNVER1;
-      if (model >= 0x30)
-	 __cpu_model.__cpu_subtype = AMDFAM17H_ZNVER2;
-      break;
-    default:
-      break;
-    }
-}
-
-/* Get the specific type of Intel CPU.  */
-
-static void
-get_intel_cpu (unsigned int family, unsigned int model, unsigned int brand_id)
-{
-  /* Parse family and model only if brand ID is 0. */
-  if (brand_id == 0)
-    {
-      switch (family)
-	{
-	case 0x5:
-	  /* Pentium.  */
-	  break;
-	case 0x6:
-	  switch (model)
-	    {
-	    case 0x1c:
-	    case 0x26:
-	      /* Bonnell.  */
-	      __cpu_model.__cpu_type = INTEL_BONNELL;
-	      break;
-	    case 0x37:
-	    case 0x4a:
-	    case 0x4d:
-	    case 0x5a:
-	    case 0x5d:
-	      /* Silvermont.  */
-	      __cpu_model.__cpu_type = INTEL_SILVERMONT;
-	      break;
-	    case 0x5c:
-	    case 0x5f:
-	      /* Goldmont.  */
-	      __cpu_model.__cpu_type = INTEL_GOLDMONT;
-	      break;
-	    case 0x7a:
-	      /* Goldmont Plus.  */
-	      __cpu_model.__cpu_type = INTEL_GOLDMONT_PLUS;
-	      break;
-	    case 0x57:
-	      /* Knights Landing.  */
-	      __cpu_model.__cpu_type = INTEL_KNL;
-	      break;
-	    case 0x85:
-	      /* Knights Mill. */
-	      __cpu_model.__cpu_type = INTEL_KNM;
-	      break;
-	    case 0x1a:
-	    case 0x1e:
-	    case 0x1f:
-	    case 0x2e:
-	      /* Nehalem.  */
-	      __cpu_model.__cpu_type = INTEL_COREI7;
-	      __cpu_model.__cpu_subtype = INTEL_COREI7_NEHALEM;
-	      break;
-	    case 0x25:
-	    case 0x2c:
-	    case 0x2f:
-	      /* Westmere.  */
-	      __cpu_model.__cpu_type = INTEL_COREI7;
-	      __cpu_model.__cpu_subtype = INTEL_COREI7_WESTMERE;
-	      break;
-	    case 0x2a:
-	    case 0x2d:
-	      /* Sandy Bridge.  */
-	      __cpu_model.__cpu_type = INTEL_COREI7;
-	      __cpu_model.__cpu_subtype = INTEL_COREI7_SANDYBRIDGE;
-	      break;
-	    case 0x3a:
-	    case 0x3e:
-	      /* Ivy Bridge.  */
-	      __cpu_model.__cpu_type = INTEL_COREI7;
-	      __cpu_model.__cpu_subtype = INTEL_COREI7_IVYBRIDGE;
-	      break;
-	    case 0x3c:
-	    case 0x3f:
-	    case 0x45:
-	    case 0x46:
-	      /* Haswell.  */
-	      __cpu_model.__cpu_type = INTEL_COREI7;
-	      __cpu_model.__cpu_subtype = INTEL_COREI7_HASWELL;
-	      break;
-	    case 0x3d:
-	    case 0x47:
-	    case 0x4f:
-	    case 0x56:
-	      /* Broadwell.  */
-	      __cpu_model.__cpu_type = INTEL_COREI7;
-	      __cpu_model.__cpu_subtype = INTEL_COREI7_BROADWELL;
-	      break;
-	    case 0x4e:
-	    case 0x5e:
-	      /* Skylake.  */
-	    case 0x8e:
-	    case 0x9e:
-	      /* Kaby Lake.  */
-	      __cpu_model.__cpu_type = INTEL_COREI7;
-	      __cpu_model.__cpu_subtype = INTEL_COREI7_SKYLAKE;
-	      break;
-	    case 0x55:
-	      {
-	        unsigned int eax, ebx, ecx, edx;
-	        __cpu_model.__cpu_type = INTEL_COREI7;
-	        __cpuid_count (7, 0, eax, ebx, ecx, edx);
-	        if (ecx & bit_AVX512VNNI)
-	          /* Cascade Lake.  */
-	          __cpu_model.__cpu_subtype = INTEL_COREI7_CASCADELAKE;
-	        else
-	          /* Skylake with AVX-512 support.  */
-	          __cpu_model.__cpu_subtype = INTEL_COREI7_SKYLAKE_AVX512;
-	      }
-	      break;
-	    case 0x66:
-	      /* Cannon Lake.  */
-	      __cpu_model.__cpu_type = INTEL_COREI7;
-	      __cpu_model.__cpu_subtype = INTEL_COREI7_CANNONLAKE;
-	      break;
-	    case 0x17:
-	    case 0x1d:
-	      /* Penryn.  */
-	    case 0x0f:
-	      /* Merom.  */
-	      __cpu_model.__cpu_type = INTEL_CORE2;
-	      break;
-	    default:
-	      break;
-	    }
-	  break;
-	default:
-	  /* We have no idea.  */
-	  break;
-	}
-    }
-}	             	
-
-/* ECX and EDX are output of CPUID at level one.  MAX_CPUID_LEVEL is
-   the max possible level of CPUID insn.  */
-static void
-get_available_features (unsigned int ecx, unsigned int edx,
-			int max_cpuid_level)
-{
-  unsigned int eax, ebx;
-  unsigned int ext_level;
-
-  unsigned int features = 0;
-  unsigned int features2 = 0;
-
-  /* Get XCR_XFEATURE_ENABLED_MASK register with xgetbv.  */
-#define XCR_XFEATURE_ENABLED_MASK	0x0
-#define XSTATE_FP			0x1
-#define XSTATE_SSE			0x2
-#define XSTATE_YMM			0x4
-#define XSTATE_OPMASK			0x20
-#define XSTATE_ZMM			0x40
-#define XSTATE_HI_ZMM			0x80
-
-#define XCR_AVX_ENABLED_MASK \
-  (XSTATE_SSE | XSTATE_YMM)
-#define XCR_AVX512F_ENABLED_MASK \
-  (XSTATE_SSE | XSTATE_YMM | XSTATE_OPMASK | XSTATE_ZMM | XSTATE_HI_ZMM)
-
-  /* Check if AVX and AVX512 are usable.  */
-  int avx_usable = 0;
-  int avx512_usable = 0;
-  if ((ecx & bit_OSXSAVE))
-    {
-      /* Check if XMM, YMM, OPMASK, upper 256 bits of ZMM0-ZMM15 and
-         ZMM16-ZMM31 states are supported by OSXSAVE.  */
-      unsigned int xcrlow;
-      unsigned int xcrhigh;
-      asm (".byte 0x0f, 0x01, 0xd0"
-	   : "=a" (xcrlow), "=d" (xcrhigh)
-	   : "c" (XCR_XFEATURE_ENABLED_MASK));
-      if ((xcrlow & XCR_AVX_ENABLED_MASK) == XCR_AVX_ENABLED_MASK)
-	{
-	  avx_usable = 1;
-	  avx512_usable = ((xcrlow & XCR_AVX512F_ENABLED_MASK)
-			   == XCR_AVX512F_ENABLED_MASK);
-	}
-    }
-
-#define set_feature(f) \
-  do						\
-    {						\
-      if (f < 32)				\
-	features |= (1U << (f & 31));		\
-      else					\
-	features2 |= (1U << ((f - 32) & 31));	\
-    }						\
-  while (0)
-
-  if (edx & bit_CMOV)
-    set_feature (FEATURE_CMOV);
-  if (edx & bit_MMX)
-    set_feature (FEATURE_MMX);
-  if (edx & bit_SSE)
-    set_feature (FEATURE_SSE);
-  if (edx & bit_SSE2)
-    set_feature (FEATURE_SSE2);
-  if (ecx & bit_POPCNT)
-    set_feature (FEATURE_POPCNT);
-  if (ecx & bit_AES)
-    set_feature (FEATURE_AES);
-  if (ecx & bit_PCLMUL)
-    set_feature (FEATURE_PCLMUL);
-  if (ecx & bit_SSE3)
-    set_feature (FEATURE_SSE3);
-  if (ecx & bit_SSSE3)
-    set_feature (FEATURE_SSSE3);
-  if (ecx & bit_SSE4_1)
-    set_feature (FEATURE_SSE4_1);
-  if (ecx & bit_SSE4_2)
-    set_feature (FEATURE_SSE4_2);
-  if (avx_usable)
-    {
-      if (ecx & bit_AVX)
-	set_feature (FEATURE_AVX);
-      if (ecx & bit_FMA)
-	set_feature (FEATURE_FMA);
-    }
-
-  /* Get Advanced Features at level 7 (eax = 7, ecx = 0/1). */
-  if (max_cpuid_level >= 7)
-    {
-      __cpuid_count (7, 0, eax, ebx, ecx, edx);
-      if (ebx & bit_BMI)
-	set_feature (FEATURE_BMI);
-      if (avx_usable)
-	{
-	  if (ebx & bit_AVX2)
-	    set_feature (FEATURE_AVX2);
-	  if (ecx & bit_VPCLMULQDQ)
-	    set_feature (FEATURE_VPCLMULQDQ);
-	}
-      if (ebx & bit_BMI2)
-	set_feature (FEATURE_BMI2);
-      if (ecx & bit_GFNI)
-	set_feature (FEATURE_GFNI);
-      if (avx512_usable)
-	{
-	  if (ebx & bit_AVX512F)
-	    set_feature (FEATURE_AVX512F);
-	  if (ebx & bit_AVX512VL)
-	    set_feature (FEATURE_AVX512VL);
-	  if (ebx & bit_AVX512BW)
-	    set_feature (FEATURE_AVX512BW);
-	  if (ebx & bit_AVX512DQ)
-	    set_feature (FEATURE_AVX512DQ);
-	  if (ebx & bit_AVX512CD)
-	    set_feature (FEATURE_AVX512CD);
-	  if (ebx & bit_AVX512PF)
-	    set_feature (FEATURE_AVX512PF);
-	  if (ebx & bit_AVX512ER)
-	    set_feature (FEATURE_AVX512ER);
-	  if (ebx & bit_AVX512IFMA)
-	    set_feature (FEATURE_AVX512IFMA);
-	  if (ecx & bit_AVX512VBMI)
-	    set_feature (FEATURE_AVX512VBMI);
-	  if (ecx & bit_AVX512VBMI2)
-	    set_feature (FEATURE_AVX512VBMI2);
-	  if (ecx & bit_AVX512VNNI)
-	    set_feature (FEATURE_AVX512VNNI);
-	  if (ecx & bit_AVX512BITALG)
-	    set_feature (FEATURE_AVX512BITALG);
-	  if (ecx & bit_AVX512VPOPCNTDQ)
-	    set_feature (FEATURE_AVX512VPOPCNTDQ);
-	  if (edx & bit_AVX5124VNNIW)
-	    set_feature (FEATURE_AVX5124VNNIW);
-	  if (edx & bit_AVX5124FMAPS)
-	    set_feature (FEATURE_AVX5124FMAPS);
-	  if (edx & bit_AVX512VP2INTERSECT)
-	    set_feature (FEATURE_AVX512VP2INTERSECT);
+   in libgcc.a only, preferably hidden.
 
-	  __cpuid_count (7, 1, eax, ebx, ecx, edx);
-	  if (eax & bit_AVX512BF16)
-	    set_feature (FEATURE_AVX512BF16);
-	}
-    }
-
-  /* Check cpuid level of extended features.  */
-  __cpuid (0x80000000, ext_level, ebx, ecx, edx);
-
-  if (ext_level >= 0x80000001)
-    {
-      __cpuid (0x80000001, eax, ebx, ecx, edx);
-
-      if (ecx & bit_SSE4a)
-	set_feature (FEATURE_SSE4_A);
-      if (avx_usable)
-	{
-	  if (ecx & bit_FMA4)
-	    set_feature (FEATURE_FMA4);
-	  if (ecx & bit_XOP)
-	    set_feature (FEATURE_XOP);
-	}
-    }
-    
-  __cpu_model.__cpu_features[0] = features;
-#ifndef SHARED
-  __cpu_features2 = features2;
-#else
-  (void) features2;
-#endif
-}
+   NB: Since older 386-builtins.c accesses __cpu_features2 as scalar or
+   smaller array, it can only access the first few elements.  */
+unsigned int __cpu_features2[SIZE_OF_CPU_FEATURES];
 
 /* A constructor function that is sets __cpu_model and __cpu_features with
    the right values.  This needs to run only once.  This constructor is
@@ -429,85 +58,9 @@ get_available_features (unsigned int ecx, unsigned int edx,
 int __attribute__ ((constructor CONSTRUCTOR_PRIORITY))
 __cpu_indicator_init (void)
 {
-  unsigned int eax, ebx, ecx, edx;
-
-  int max_level;
-  unsigned int vendor;
-  unsigned int model, family, brand_id;
-  unsigned int extended_model, extended_family;
-
-  /* This function needs to run just once.  */
-  if (__cpu_model.__cpu_vendor)
-    return 0;
-
-  /* Assume cpuid insn present. Run in level 0 to get vendor id. */
-  if (!__get_cpuid (0, &eax, &ebx, &ecx, &edx))
-    {
-      __cpu_model.__cpu_vendor = VENDOR_OTHER;
-      return -1;
-    }
-
-  vendor = ebx;
-  max_level = eax;
-
-  if (max_level < 1)
-    {
-      __cpu_model.__cpu_vendor = VENDOR_OTHER;
-      return -1;
-    }
-
-  if (!__get_cpuid (1, &eax, &ebx, &ecx, &edx))
-    {
-      __cpu_model.__cpu_vendor = VENDOR_OTHER;
-      return -1;
-    }
-
-  model = (eax >> 4) & 0x0f;
-  family = (eax >> 8) & 0x0f;
-  brand_id = ebx & 0xff;
-  extended_model = (eax >> 12) & 0xf0;
-  extended_family = (eax >> 20) & 0xff;
-
-  if (vendor == signature_INTEL_ebx)
-    {
-      /* Adjust model and family for Intel CPUS. */
-      if (family == 0x0f)
-	{
-	  family += extended_family;
-	  model += extended_model;
-	}
-      else if (family == 0x06)
-	model += extended_model;
-
-      /* Get CPU type.  */
-      get_intel_cpu (family, model, brand_id);
-      /* Find available features. */
-      get_available_features (ecx, edx, max_level);
-      __cpu_model.__cpu_vendor = VENDOR_INTEL;
-    }
-  else if (vendor == signature_AMD_ebx)
-    {
-      /* Adjust model and family for AMD CPUS. */
-      if (family == 0x0f)
-	{
-	  family += extended_family;
-	  model += extended_model;
-	}
-
-      /* Get CPU type.  */
-      get_amd_cpu (family, model);
-      /* Find available features. */
-      get_available_features (ecx, edx, max_level);
-      __cpu_model.__cpu_vendor = VENDOR_AMD;
-    }
-  else
-    __cpu_model.__cpu_vendor = VENDOR_OTHER;
-
-  gcc_assert (__cpu_model.__cpu_vendor < VENDOR_MAX);
-  gcc_assert (__cpu_model.__cpu_type < CPU_TYPE_MAX);
-  gcc_assert (__cpu_model.__cpu_subtype < CPU_SUBTYPE_MAX);
-
-  return 0;
+  struct __processor_model2 cpu_model2;
+  return cpu_indicator_init (&__cpu_model, &cpu_model2,
+			     __cpu_features2);
 }
 
 #if defined SHARED && defined USE_ELF_SYMVER
diff --git a/libgcc/config/i386/cpuinfo.h b/libgcc/config/i386/cpuinfo.h
deleted file mode 100644
index 0f97510..0000000
--- a/libgcc/config/i386/cpuinfo.h
+++ /dev/null
@@ -1,136 +0,0 @@
-/* Get CPU type and Features for x86 processors.
-   Copyright (C) 2012-2020 Free Software Foundation, Inc.
-   Contributed by Sriraman Tallam (tmsriram@google.com)
-
-This file is part of GCC.
-
-GCC is free software; you can redistribute it and/or modify it under
-the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 3, or (at your option) any later
-version.
-
-GCC is distributed in the hope that it will be useful, but WITHOUT ANY
-WARRANTY; without even the implied warranty of MERCHANTABILITY or
-FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-for more details.
-
-Under Section 7 of GPL version 3, you are granted additional
-permissions described in the GCC Runtime Library Exception, version
-3.1, as published by the Free Software Foundation.
-
-You should have received a copy of the GNU General Public License and
-a copy of the GCC Runtime Library Exception along with this program;
-see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
-<http://www.gnu.org/licenses/>.  */
-
-/* Processor Vendor and Models. */
-
-enum processor_vendor
-{
-  VENDOR_INTEL = 1,
-  VENDOR_AMD,
-  VENDOR_OTHER,
-  VENDOR_MAX
-};
-
-/* Any new types or subtypes have to be inserted at the end. */
-
-enum processor_types
-{
-  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,
-  CPU_TYPE_MAX
-};
-
-enum processor_subtypes
-{
-  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,
-  CPU_SUBTYPE_MAX
-};
-
-/* ISA Features supported. New features have to be inserted at the end.  */
-
-enum processor_features
-{
-  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
-};
-
-extern struct __processor_model
-{
-  unsigned int __cpu_vendor;
-  unsigned int __cpu_type;
-  unsigned int __cpu_subtype;
-  unsigned int __cpu_features[1];
-} __cpu_model;
-extern unsigned int __cpu_features2;