about summary refs log tree commit diff
diff options
context:
space:
mode:
-rw-r--r--sysdeps/x86/isa-level.h1
-rw-r--r--sysdeps/x86_64/multiarch/ifunc-avx2.h1
-rw-r--r--sysdeps/x86_64/multiarch/ifunc-impl-list.c17
3 files changed, 16 insertions, 3 deletions
diff --git a/sysdeps/x86/isa-level.h b/sysdeps/x86/isa-level.h
index bbb90f5c5e..06f6c9663e 100644
--- a/sysdeps/x86/isa-level.h
+++ b/sysdeps/x86/isa-level.h
@@ -79,6 +79,7 @@
 /* ISA level >= 3 guaranteed includes.  */
 #define AVX_X86_ISA_LEVEL 3
 #define AVX2_X86_ISA_LEVEL 3
+#define BMI1_X86_ISA_LEVEL 3
 #define BMI2_X86_ISA_LEVEL 3
 #define LZCNT_X86_ISA_LEVEL 3
 #define MOVBE_X86_ISA_LEVEL 3
diff --git a/sysdeps/x86_64/multiarch/ifunc-avx2.h b/sysdeps/x86_64/multiarch/ifunc-avx2.h
index f1741083fd..f2f5e8a211 100644
--- a/sysdeps/x86_64/multiarch/ifunc-avx2.h
+++ b/sysdeps/x86_64/multiarch/ifunc-avx2.h
@@ -36,6 +36,7 @@ IFUNC_SELECTOR (void)
   const struct cpu_features *cpu_features = __get_cpu_features ();
 
   if (X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, AVX2)
+      && X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, BMI1)
       && X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, BMI2)
       && X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, LZCNT)
       && X86_ISA_CPU_FEATURES_ARCH_P (cpu_features,
diff --git a/sysdeps/x86_64/multiarch/ifunc-impl-list.c b/sysdeps/x86_64/multiarch/ifunc-impl-list.c
index ec1c5b55fb..00a91123d3 100644
--- a/sysdeps/x86_64/multiarch/ifunc-impl-list.c
+++ b/sysdeps/x86_64/multiarch/ifunc-impl-list.c
@@ -578,13 +578,19 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
   IFUNC_IMPL (i, name, strrchr,
 	      X86_IFUNC_IMPL_ADD_V4 (array, i, strrchr,
 				     (CPU_FEATURE_USABLE (AVX512VL)
-				      && CPU_FEATURE_USABLE (AVX512BW)),
+				      && CPU_FEATURE_USABLE (AVX512BW)
+				      && CPU_FEATURE_USABLE (BMI1)
+				      && CPU_FEATURE_USABLE (BMI2)),
 				     __strrchr_evex)
 	      X86_IFUNC_IMPL_ADD_V3 (array, i, strrchr,
-				     CPU_FEATURE_USABLE (AVX2),
+				     (CPU_FEATURE_USABLE (AVX2)
+				      && CPU_FEATURE_USABLE (BMI1)
+				      && CPU_FEATURE_USABLE (BMI2)),
 				     __strrchr_avx2)
 	      X86_IFUNC_IMPL_ADD_V3 (array, i, strrchr,
 				     (CPU_FEATURE_USABLE (AVX2)
+				      && CPU_FEATURE_USABLE (BMI1)
+				      && CPU_FEATURE_USABLE (BMI2)
 				      && CPU_FEATURE_USABLE (RTM)),
 				     __strrchr_avx2_rtm)
 	      /* ISA V2 wrapper for SSE2 implementation because the SSE2
@@ -797,13 +803,18 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
 	      X86_IFUNC_IMPL_ADD_V4 (array, i, wcsrchr,
 				     (CPU_FEATURE_USABLE (AVX512VL)
 				      && CPU_FEATURE_USABLE (AVX512BW)
+				      && CPU_FEATURE_USABLE (BMI1)
 				      && CPU_FEATURE_USABLE (BMI2)),
 				     __wcsrchr_evex)
 	      X86_IFUNC_IMPL_ADD_V3 (array, i, wcsrchr,
-				     CPU_FEATURE_USABLE (AVX2),
+				     (CPU_FEATURE_USABLE (AVX2)
+				      && CPU_FEATURE_USABLE (BMI1)
+				      && CPU_FEATURE_USABLE (BMI2)),
 				     __wcsrchr_avx2)
 	      X86_IFUNC_IMPL_ADD_V3 (array, i, wcsrchr,
 				     (CPU_FEATURE_USABLE (AVX2)
+				      && CPU_FEATURE_USABLE (BMI1)
+				      && CPU_FEATURE_USABLE (BMI2)
 				      && CPU_FEATURE_USABLE (RTM)),
 				     __wcsrchr_avx2_rtm)
 	      /* ISA V2 wrapper for SSE2 implementation because the SSE2