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.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@191109 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 8f763ab..c8065d9 100644 (file)
--- a/gcc/ChangeLog
+++ b/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

diff --git a/gcc/config/i386/cpuid.h b/gcc/config/i386/cpuid.h
index a26dc9b..5cd1eb1 100644 (file)
--- a/gcc/config/i386/cpuid.h
+++ b/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

diff --git a/gcc/config/i386/driver-i386.c b/gcc/config/i386/driver-i386.c
index b5ae18f..79bf75f 100644 (file)
--- a/gcc/config/i386/driver-i386.c
+++ b/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;

diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index f3a5852..bd87dec 100644 (file)
--- a/libstdc++-v3/ChangeLog
+++ b/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

diff --git a/libstdc++-v3/src/c++11/random.cc b/libstdc++-v3/src/c++11/random.cc
index f5ee9f4..3b05318 100644 (file)
--- a/libstdc++-v3/src/c++11/random.cc
+++ b/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)