PATCH: Support unknown Intel family 0x6 CPUs
H.J. Lu
hongjiu.lu@intel.com
Wed Jun 8 13:48:00 GMT 2011
Hi,
This patch supports unknown Intel family 0x6 CPUs. OK for trunk and
4.6 branch?
Thanks.
H.J.
--
2011-06-08 H.J. Lu <hongjiu.lu@intel.com>
* config/i386/driver-i386.c (host_detect_local_cpu): Support
unknown Intel family 0x6 CPUs.
diff --git a/gcc/config/i386/driver-i386.c b/gcc/config/i386/driver-i386.c
index 4fc6b45..985a6ff 100644
--- a/gcc/config/i386/driver-i386.c
+++ b/gcc/config/i386/driver-i386.c
@@ -587,9 +587,22 @@ const char *host_detect_local_cpu (int argc, const char **argv)
default:
if (arch)
{
- if (has_ssse3)
- /* If it is an unknown CPU with SSSE3, assume Core 2. */
- cpu = "core2";
+ /* This is unknown family 0x6 CPU. */
+ if (has_avx)
+ /* Assume Sandy Bridge. */
+ cpu = "corei7-avx";
+ else if (has_sse4_2)
+ /* Assume Core i7. */
+ cpu = "corei7";
+ else if (has_ssse3)
+ {
+ if (has_movbe)
+ /* Assume Atom. */
+ cpu = "atom";
+ else
+ /* Assume Core 2. */
+ cpu = "core2";
+ }
else if (has_sse3)
/* It is Core Duo. */
cpu = "pentium-m";
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