diff options
Diffstat (limited to 'gcc/config/i386/driver-i386.c')
| -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 61387793d1c..1529810c78f 100644 --- a/gcc/config/i386/driver-i386.c +++ b/gcc/config/i386/driver-i386.c @@ -399,6 +399,7 @@ const char *host_detect_local_cpu (int argc, const char **argv) unsigned int has_bmi = 0, has_bmi2 = 0, has_tbm = 0, has_lzcnt = 0; unsigned int has_hle = 0, has_rtm = 0; unsigned int has_rdrnd = 0, has_f16c = 0, has_fsgsbase = 0; + unsigned int has_prfchw = 0; bool arch; @@ -465,6 +466,7 @@ const char *host_detect_local_cpu (int argc, const char **argv) has_avx2 = ebx & bit_AVX2; has_bmi2 = ebx & bit_BMI2; has_fsgsbase = ebx & bit_FSGSBASE; + has_prfchw = ecx & bit_PRFCHW; } /* Check cpuid level of extended features. */ @@ -745,11 +747,12 @@ const char *host_detect_local_cpu (int argc, const char **argv) const char *rdrnd = has_rdrnd ? " -mrdrnd" : " -mno-rdrnd"; const char *f16c = has_f16c ? " -mf16c" : " -mno-f16c"; const char *fsgsbase = has_fsgsbase ? " -mfsgsbase" : " -mno-fsgsbase"; + const char *prfchw = has_prfchw ? " -mprfchw" : " -mno-prfchw"; options = concat (options, cx16, sahf, movbe, ase, pclmul, popcnt, abm, lwp, fma, fma4, xop, bmi, bmi2, tbm, avx, avx2, sse4_2, sse4_1, lzcnt, rtm, - hle, rdrnd, f16c, fsgsbase, NULL); + hle, rdrnd, f16c, fsgsbase, prfchw, NULL); } done: |