diff options
Diffstat (limited to 'sysdeps/x86_64/multiarch/strstr.c')
| -rw-r--r-- | sysdeps/x86_64/multiarch/strstr.c | 25 |
1 files changed, 4 insertions, 21 deletions
diff --git a/sysdeps/x86_64/multiarch/strstr.c b/sysdeps/x86_64/multiarch/strstr.c index a513bac5c3..828308668b 100644 --- a/sysdeps/x86_64/multiarch/strstr.c +++ b/sysdeps/x86_64/multiarch/strstr.c @@ -35,32 +35,15 @@ extern __typeof (__redirect_strstr) __strstr_sse2_unaligned attribute_hidden; extern __typeof (__redirect_strstr) __strstr_generic attribute_hidden; -extern __typeof (__redirect_strstr) __strstr_avx512 attribute_hidden; #include "init-arch.h" /* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle ifunc symbol properly. */ extern __typeof (__redirect_strstr) __libc_strstr; - -static inline void * -IFUNC_SELECTOR (void) -{ - const struct cpu_features *cpu_features = __get_cpu_features (); - - if (!CPU_FEATURES_ARCH_P (cpu_features, Prefer_No_AVX512) - && CPU_FEATURE_USABLE_P (cpu_features, AVX512VL) - && CPU_FEATURE_USABLE_P (cpu_features, AVX512BW) - && CPU_FEATURE_USABLE_P (cpu_features, AVX512DQ) - && CPU_FEATURE_USABLE_P (cpu_features, BMI2)) - return __strstr_avx512; - - if (CPU_FEATURES_ARCH_P (cpu_features, Fast_Unaligned_Load)) - return __strstr_sse2_unaligned; - - return __strstr_generic; -} - -libc_ifunc_redirected (__redirect_strstr, __libc_strstr, IFUNC_SELECTOR ()); +libc_ifunc (__libc_strstr, + HAS_ARCH_FEATURE (Fast_Unaligned_Load) + ? __strstr_sse2_unaligned + : __strstr_generic) #undef strstr strong_alias (__libc_strstr, strstr) |