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re PR target/45359 (poor -march=native choices for VIA C7 Esther processors) 

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.


Co-Authored-By: Dzianis Kahanovich <mahatma@eu.by>

From-SVN: r198987
This commit is contained in:
Uros Bizjak 2013-05-16 21:53:36 +02:00 committed by Uros Bizjak
parent 251a41b978
commit 19db293ad5
2 changed files with 38 additions and 2 deletions
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11
gcc/ChangeLog
View File

@ -1,3 +1,12 @@
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.
2013-05-16 Teresa Johnson <tejohnson@google.com>
* cfgrtl.c (verify_hot_cold_block_grouping): Return err.
@ -111,7 +120,7 @@
2013-05-15 Uros Bizjak <ubizjak@gmail.com>
* config/i386/i386.c (iy86_option_override_internal): Update
* config/i386/i386.c (ix86_option_override_internal): Update
processor_alias_table for missing PTA_PRFCHW and PTA_FXSR flags. Add
PTA_POPCNT to corei7 entry and remove PTA_SSE from athlon-4 entry.
Do not enable SSE prefetch on non-SSE 3dNow! targets. Enable

29
gcc/config/i386/driver-i386.c
View File

@ -517,7 +517,8 @@ const char *host_detect_local_cpu (int argc, const char **argv)
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 char **argv)
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)