driver-i386.c (enum vendor_signatures): New enum.

	* config/i386/driver-i386.c (enum vendor_signatures): New enum.
	(host_detect_local_cpu): Use it instead of casted strings to
	compare vendor signatures.

From-SVN: r141579

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 8b28c19..0a0d33c 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2008-11-04  Uros Bizjak  <ubizjak@gmail.com>
+
+       * config/i386/driver-i386.c (enum vendor_signatures): New enum.
+       (host_detect_local_cpu): Use it instead of casted strings to
+       compare vendor signatures.
+
 2008-11-03  Mikael Pettersson  <mikpe@it.uu.se>
 
         PR target/37989
@@ -609,8 +615,7 @@
        * tree-inline.c (tree_inlinable_function_p): Remove tuples
        debugging hack.
 
-       * gimplify.c (gimplify_expr): Drop TREE_OVERFLOW from
-       INTEGER_CSTs.
+       * gimplify.c (gimplify_expr): Drop TREE_OVERFLOW from INTEGER_CSTs.
 
        PR debug/37020
        * c-decl.c (merge_decls): Don't call outlining_inline_function hook.

diff --git a/gcc/config/i386/driver-i386.c b/gcc/config/i386/driver-i386.c
index 29b0405..69c6c0c 100644 (file)
--- a/gcc/config/i386/driver-i386.c
+++ b/gcc/config/i386/driver-i386.c
@@ -333,6 +333,13 @@ detect_caches_intel (bool xeon_mp, unsigned max_level, unsigned max_ext_level)
   return describe_cache (level1, level2);
 }
 
+enum vendor_signatures
+{
+  SIG_INTEL =  0x756e6547 /* Genu */,
+  SIG_AMD =    0x68747541 /* Auth */,
+  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
@@ -415,16 +422,16 @@ const char *host_detect_local_cpu (int argc, const char **argv)
 
   if (!arch)
     {
-      if (vendor == *(const unsigned int*) "Auth")
+      if (vendor == SIG_AMD)
        cache = detect_caches_amd (ext_level);
-      else if (vendor == *(const unsigned int*) "Genu")
+      else if (vendor == SIG_INTEL)
        {
          bool xeon_mp = (family == 15 && model == 6);
          cache = detect_caches_intel (xeon_mp, max_level, ext_level);
        }
     }
 
-  if (vendor == *(const unsigned int*) "Auth")
+  if (vendor == SIG_AMD)
     {
       processor = PROCESSOR_PENTIUM;
 
@@ -437,7 +444,7 @@ const char *host_detect_local_cpu (int argc, const char **argv)
       if (has_sse4a)
        processor = PROCESSOR_AMDFAM10;
     }
-  else if (vendor == *(const unsigned int*) "Geod")
+  else if (vendor == SIG_GEODE)
     processor = PROCESSOR_GEODE;
   else
     {