[PATCH, i386] Handle extended family cpuid info for AMD

[Gopalasubramanian, Ganesh]

Hi,

The below patch handles the AMD's cpuid family information.
With the information from cpuid, BTVER2 cpu for -march=native flag is handled.

Bootstrap passes.
Is it OK for trunk and branches?

Regards
Ganesh 

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 6223bd6..3f8bb2c 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2014-07-31  Ganesh Gopalasubramanian  <ganesh.gopalasubraman...@amd.com>
+
+       * tree-sra.c (host_detect_local_cpu): Handle AMD's extended family
+       information. Handle BTVER2 cpu with cpuid family value.  
+
 2014-07-30  Martin Jambor  <mjam...@suse.cz>
 
        * tree-sra.c (sra_ipa_modify_assign): Change type of the first
diff --git a/gcc/config/i386/driver-i386.c b/gcc/config/i386/driver-i386.c
index 1c6385f..21ae1f3 100644
--- a/gcc/config/i386/driver-i386.c
+++ b/gcc/config/i386/driver-i386.c
@@ -432,7 +432,8 @@ const char *host_detect_local_cpu (int argc, const char 
**argv)
 
   model = (eax >> 4) & 0x0f;
   family = (eax >> 8) & 0x0f;
-  if (vendor == signature_INTEL_ebx)
+  if ((vendor == signature_INTEL_ebx) ||
+      (vendor == signature_AMD_ebx))
     {
       unsigned int extended_model, extended_family;
 
@@ -576,7 +577,7 @@ const char *host_detect_local_cpu (int argc, const char 
**argv)
 
       if (name == signature_NSC_ebx)
        processor = PROCESSOR_GEODE;
-      else if (has_movbe)
+      else if (has_movbe && family == 22)
        processor = PROCESSOR_BTVER2;
       else if (has_avx2)
         processor = PROCESSOR_BDVER4;