cpuid.h: Define signature_*_e[bcd]x macros for matching results of level 0 calls to...

gcc/
        * config/i386/cpuid.h: Define signature_*_e[bcd]x macros for
        matching results of level 0 calls to __cpuid to processor
        manufacturers.
        * config/i386/driver-i386.c (vendor_signatures): Removed.
        (processor_signatures): Removed.
        (host_detect_local_cpu): Replace uses of now-removed SIG_*
        constants with the new signature_*_ebx constants.

libstdc++-v3/
        * src/c++11/random.cc (random_device::_M_init): Use new macro
        signature_INTEL_ebx to check for Intel processors.

From-SVN: r191109

gcc/ChangeLog

@@ -1,3 +1,13 @@
+2012-09-09  Ulrich Drepper  <drepper@gmail.com>
+
+	* config/i386/cpuid.h: Define signature_*_e[bcd]x macros for
+	matching results of level 0 calls to __cpuid to processor
+	manufacturers.
+	* config/i386/driver-i386.c (vendor_signatures): Removed.
+	(processor_signatures): Removed.
+	(host_detect_local_cpu): Replace uses of now-removed SIG_*
+	constants with the new signature_*_ebx constants.
+
 2012-09-08  Jan Hubicka  <jh@suse.cz>
 
 	Replace cgraph_node_set and varpool_node_set by symtab_node_encoder

gcc/config/i386/cpuid.h

@@ -75,6 +75,60 @@
 #define bit_RDSEED	(1 << 18)
 #define bit_ADX	(1 << 19)
 
+/* Signatures for different CPU implementations as returned in uses
+   of cpuid with level 0.  */
+#define signature_AMD_ebx	0x68747541
+#define signature_AMD_ecx	0x444d4163
+#define signature_AMD_edx	0x69746e65
+
+#define signature_CENTAUR_ebx	0x746e6543
+#define signature_CENTAUR_ecx	0x736c7561
+#define signature_CENTAUR_edx	0x48727561
+
+#define signature_CYRIX_ebx	0x69727943
+#define signature_CYRIX_ecx	0x64616574
+#define signature_CYRIX_edx	0x736e4978
+
+#define signature_INTEL_ebx	0x756e6547
+#define signature_INTEL_ecx	0x6c65746e
+#define signature_INTEL_edx	0x49656e69
+
+#define signature_TM1_ebx	0x6e617254
+#define signature_TM1_ecx	0x55504361
+#define signature_TM1_edx	0x74656d73
+
+#define signature_TM2_ebx	0x756e6547
+#define signature_TM2_ecx	0x3638784d
+#define signature_TM2_edx	0x54656e69
+
+#define signature_NSC_ebx	0x646f6547
+#define signature_NSC_ecx	0x43534e20
+#define signature_NSC_edx	0x79622065
+
+#define signature_NEXGEN_ebx	0x4778654e
+#define signature_NEXGEN_ecx	0x6e657669
+#define signature_NEXGEN_edx	0x72446e65
+
+#define signature_RISE_ebx	0x65736952
+#define signature_RISE_ecx	0x65736952
+#define signature_RISE_edx	0x65736952
+
+#define signature_SIS_ebx	0x20536953
+#define signature_SIS_ecx	0x20536953
+#define signature_SIS_edx	0x20536953
+
+#define signature_UMC_ebx	0x20434d55
+#define signature_UMC_ecx	0x20434d55
+#define signature_UMC_edx	0x20434d55
+
+#define signature_VIA_ebx	0x20414956
+#define signature_VIA_ecx	0x20414956
+#define signature_VIA_edx	0x20414956
+
+#define signature_VORTEX_ebx	0x74726f56
+#define signature_VORTEX_ecx	0x436f5320
+#define signature_VORTEX_edx	0x36387865
+
 #if defined(__i386__) && defined(__PIC__)
 /* %ebx may be the PIC register.  */
 #if __GNUC__ >= 3

gcc/config/i386/driver-i386.c

@@ -348,17 +348,6 @@ detect_caches_intel (bool xeon_mp, unsigned max_level,
   return describe_cache (level1, level2);
 }
 
-enum vendor_signatures
-{
-  SIG_INTEL =	0x756e6547 /* Genu */,
-  SIG_AMD =	0x68747541 /* Auth */
-};
-
-enum processor_signatures
-{
-  SIG_GEODE =	0x646f6547 /* Geod */
-};
-
 /* This will be called by the spec parser in gcc.c when it sees
    a %:local_cpu_detect(args) construct.  Currently it will be called
    with either "arch" or "tune" as argument depending on if -march=native
@@ -422,7 +411,7 @@ const char *host_detect_local_cpu (int argc, const char **argv)
 
   model = (eax >> 4) & 0x0f;
   family = (eax >> 8) & 0x0f;
-  if (vendor == SIG_INTEL)
+  if (vendor == signature_INTEL_ebx)
     {
       unsigned int extended_model, extended_family;
 
@@ -483,7 +472,7 @@ const char *host_detect_local_cpu (int argc, const char **argv)
       has_abm = ecx & bit_ABM;
       has_lwp = ecx & bit_LWP;
       has_fma4 = ecx & bit_FMA4;
-      if (vendor == SIG_AMD && has_fma4 && has_fma)
+      if (vendor == signature_AMD_ebx && has_fma4 && has_fma)
 	has_fma4 = 0;
       has_xop = ecx & bit_XOP;
       has_tbm = ecx & bit_TBM;
@@ -497,9 +486,9 @@ const char *host_detect_local_cpu (int argc, const char **argv)
 
   if (!arch)
     {
-      if (vendor == SIG_AMD)
+      if (vendor == signature_AMD_ebx)
 	cache = detect_caches_amd (ext_level);
-      else if (vendor == SIG_INTEL)
+      else if (vendor == signature_INTEL_ebx)
 	{
 	  bool xeon_mp = (family == 15 && model == 6);
 	  cache = detect_caches_intel (xeon_mp, max_level,
@@ -507,7 +496,7 @@ const char *host_detect_local_cpu (int argc, const char **argv)
 	}
     }
 
-  if (vendor == SIG_AMD)
+  if (vendor == signature_AMD_ebx)
     {
       unsigned int name;
 
@@ -517,7 +506,7 @@ const char *host_detect_local_cpu (int argc, const char **argv)
       else
 	name = 0;
 
-      if (name == SIG_GEODE)
+      if (name == signature_NSC_ebx)
 	processor = PROCESSOR_GEODE;
       else if (has_movbe)
 	processor = PROCESSOR_BTVER2;

libstdc++-v3/ChangeLog

@@ -1,3 +1,8 @@
+2012-09-09  Ulrich Drepper  <drepper@gmail.com>
+
+	* src/c++11/random.cc (random_device::_M_init): Use new macro
+	signature_INTEL_ebx to check for Intel processors.
+
 2012-09-06  Thiago Macieira  <thiago.macieira@intel.com>
 
 	PR libstdc++/54172

libstdc++-v3/src/c++11/random.cc

@@ -79,7 +79,7 @@ namespace std _GLIBCXX_VISIBILITY(default)
 	unsigned int eax, ebx, ecx, edx;
 	// Check availability of cpuid and, for now at least, also the
 	// CPU signature for Intel's
-	if (__get_cpuid_max(0, &ebx) > 0 && ebx == 0x756e6547)
+	if (__get_cpuid_max(0, &ebx) > 0 && ebx == signature_INTEL_ebx)
 	  {
 	    __cpuid(1, eax, ebx, ecx, edx);
 	    if (ecx & bit_RDRND)