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Check cpuid ABM bit.

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* config/i386/cpuid.h (bit_ABM): New.
	* config/i386/driver-i386.c (host_detect_local_cpu): Add -mabm to the
	options when bit_ABM is set.

From-SVN: r155060
This commit is contained in:
Sebastian Pop 2009-12-07 22:23:10 +00:00 committed by Sebastian Pop
parent 7fccdfcfb9
commit c3d34a7861
3 changed files with 13 additions and 3 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2009-12-07 Sebastian Pop <sebastian.pop@amd.com>
* config/i386/cpuid.h (bit_ABM): New.
* config/i386/driver-i386.c (host_detect_local_cpu): Add -mabm to the
options when bit_ABM is set.
2009-12-07 Jakub Jelinek <jakub@redhat.com>
* config/i386/i386.c (bdesc_special_args): Move __builtin_clzs from

5
gcc/config/i386/cpuid.h
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@ -46,11 +46,12 @@
/* Extended Features */
/* %ecx */
#define bit_FMA4 (1 << 16)
#define bit_LAHF_LM (1 << 0)
#define bit_LWP (1 << 15)
#define bit_ABM (1 << 5)
#define bit_SSE4a (1 << 6)
#define bit_XOP (1 << 11)
#define bit_LWP (1 << 15)
#define bit_FMA4 (1 << 16)
/* %edx */
#define bit_LM (1 << 29)

5
gcc/config/i386/driver-i386.c
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@ -383,7 +383,7 @@ const char *host_detect_local_cpu (int argc, const char **argv)
unsigned int has_longmode = 0, has_3dnowp = 0, has_3dnow = 0;
unsigned int has_movbe = 0, has_sse4_1 = 0, has_sse4_2 = 0;
unsigned int has_popcnt = 0, has_aes = 0, has_avx = 0;
unsigned int has_pclmul = 0;
unsigned int has_pclmul = 0, has_abm = 0;
bool arch;
@ -444,6 +444,7 @@ const char *host_detect_local_cpu (int argc, const char **argv)
has_lahf_lm = ecx & bit_LAHF_LM;
has_sse4a = ecx & bit_SSE4a;
has_abm = ecx & bit_ABM;
has_longmode = edx & bit_LM;
has_3dnowp = edx & bit_3DNOWP;
@ -622,6 +623,8 @@ const char *host_detect_local_cpu (int argc, const char **argv)
options = concat (options, " -mpclmul", NULL);
if (has_popcnt)
options = concat (options, " -mpopcnt", NULL);
if (has_abm)
options = concat (options, " -mabm", NULL);
if (has_avx)
options = concat (options, " -mavx", NULL);