diff options
Diffstat (limited to 'gcc/config/i386/driver-i386.c')
| -rw-r--r-- | gcc/config/i386/driver-i386.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/gcc/config/i386/driver-i386.c b/gcc/config/i386/driver-i386.c index 0b5fd99d4d0..1871ae48504 100644 --- a/gcc/config/i386/driver-i386.c +++ b/gcc/config/i386/driver-i386.c @@ -397,6 +397,7 @@ const char *host_detect_local_cpu (int argc, const char **argv) unsigned int has_pclmul = 0, has_abm = 0, has_lwp = 0; unsigned int has_fma = 0, has_fma4 = 0, has_xop = 0; unsigned int has_bmi = 0, has_tbm = 0; + unsigned int has_rdrnd = 0, has_f16c = 0, has_fsgsbase = 0; bool arch; @@ -444,6 +445,8 @@ const char *host_detect_local_cpu (int argc, const char **argv) has_aes = ecx & bit_AES; has_pclmul = ecx & bit_PCLMUL; has_fma = ecx & bit_FMA; + has_f16c = ecx & bit_F16C; + has_rdrnd = ecx & bit_RDRND; has_cmpxchg8b = edx & bit_CMPXCHG8B; has_cmov = edx & bit_CMOV; @@ -451,6 +454,13 @@ const char *host_detect_local_cpu (int argc, const char **argv) has_sse = edx & bit_SSE; has_sse2 = edx & bit_SSE2; + if (max_level >= 7) + { + __cpuid_count (7, 0, eax, ebx, ecx, edx); + + has_fsgsbase = ebx & bit_FSGSBASE; + } + /* Check cpuid level of extended features. */ __cpuid (0x80000000, ext_level, ebx, ecx, edx); @@ -711,10 +721,13 @@ const char *host_detect_local_cpu (int argc, const char **argv) const char *avx = has_avx ? " -mavx" : " -mno-avx"; const char *sse4_2 = has_sse4_2 ? " -msse4.2" : " -mno-sse4.2"; const char *sse4_1 = has_sse4_1 ? " -msse4.1" : " -mno-sse4.1"; + const char *rdrnd = has_rdrnd ? " -mrdrnd" : " -mno-rdrnd"; + const char *f16c = has_f16c ? " -mf16c" : " -mno-f16c"; + const char *fsgsbase = has_fsgsbase ? " -mfsgsbase" : " -mno-fsgsbase"; options = concat (options, cx16, sahf, movbe, ase, pclmul, popcnt, abm, lwp, fma, fma4, xop, bmi, tbm, - avx, sse4_2, sse4_1, NULL); + avx, sse4_2, sse4_1, rdrnd, f16c, fsgsbase, NULL); } done: |