===================================================================
@@ -517,7 +517,8 @@ const char *host_detect_local_cpu (int argc, const
if (!arch)
{
- if (vendor == signature_AMD_ebx)
+ if (vendor == signature_AMD_ebx
+ || vendor == signature_CENTAUR_ebx)
cache = detect_caches_amd (ext_level);
else if (vendor == signature_INTEL_ebx)
{
@@ -560,6 +561,32 @@ const char *host_detect_local_cpu (int argc, const
else
processor = PROCESSOR_PENTIUM;
}
+ else if (vendor == signature_CENTAUR_ebx)
+ {
+ if (arch)
+ {
+ if (family == 6)
+ {
+ if (model > 9)
+ /* Use the default detection procedure. */
+ processor = PROCESSOR_GENERIC32;
+ else if (model == 9)
+ cpu = "c3-2";
+ else if (model >= 6)
+ cpu = "c3";
+ else
+ /* We have no idea. */
+ processor = PROCESSOR_GENERIC32;
+ }
+ else if (has_3dnow)
+ cpu = "winchip2";
+ else if (has_mmx)
+ cpu = "winchip2-c6";
+ else
+ /* We have no idea. */
+ processor = PROCESSOR_GENERIC32;
+ }
+ }
else
{
switch (family)
Hello! Attached patch introduces handling of VIA/Centaur processors with -march=native compile directive. Comparing to original patch in PR45359, attached patch handles detection of "unknown" processors via default detection procedure. I also choose to use generic tuning for all detected processors. 2013-05-16 Uros Bizjak <ubizjak@gmail.com> Dzianis Kahanovich <mahatma@eu.by> PR target/45359 PR target/46396 * config/i386/driver-i386.c (host_detect_local_cpu): Detect VIA/Centaur processors and determine their cache parameters using detect_caches_amd. The patch was (compile) tested on x86_64-pc-linux-gnu and committed to mainline SVN. According to the PR45359, some other fix regressed the detection of VIA/Centaur processors in 4.5, so I plan to backport the patch to release branches. Uros.