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| author | spop <spop@138bc75d-0d04-0410-961f-82ee72b054a4> | 2009-12-07 22:23:16 +0000 |
|---|---|---|
| committer | spop <spop@138bc75d-0d04-0410-961f-82ee72b054a4> | 2009-12-07 22:23:16 +0000 |
| commit | fd3ed659d6168a32d222957d11f994ab7c9e0370 (patch) | |
| tree | 8e642be47054a446aada0679540039ee5c378538 /gcc/config | |
| parent | de69fd190abda545e00a047feca2b186d48022e9 (diff) | |
| download | gcc-fd3ed659d6168a32d222957d11f994ab7c9e0370.tar.gz | |
Check cpuid LWP bit.
* config/i386/driver-i386.c (host_detect_local_cpu): Add -mlwp to the
options when bit_LWP is set.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@155061 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/config')
| -rw-r--r-- | gcc/config/i386/driver-i386.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/gcc/config/i386/driver-i386.c b/gcc/config/i386/driver-i386.c index d3088f37bb6..05ba01e2f81 100644 --- a/gcc/config/i386/driver-i386.c +++ b/gcc/config/i386/driver-i386.c @@ -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, has_abm = 0; + unsigned int has_pclmul = 0, has_abm = 0, has_lwp = 0; bool arch; @@ -445,6 +445,7 @@ 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_lwp = ecx & bit_LWP; has_longmode = edx & bit_LM; has_3dnowp = edx & bit_3DNOWP; @@ -625,6 +626,8 @@ const char *host_detect_local_cpu (int argc, const char **argv) options = concat (options, " -mpopcnt", NULL); if (has_abm) options = concat (options, " -mabm", NULL); + if (has_lwp) + options = concat (options, " -mlwp", NULL); if (has_avx) options = concat (options, " -mavx", NULL); |