diff options
| -rw-r--r-- | clang/lib/Headers/emmintrin.h | 2 | ||||
| -rw-r--r-- | clang/test/CodeGen/sse-builtins.c | 7 |
2 files changed, 8 insertions, 1 deletions
diff --git a/clang/lib/Headers/emmintrin.h b/clang/lib/Headers/emmintrin.h index 9ab0a73aad6..a78eb54c45a 100644 --- a/clang/lib/Headers/emmintrin.h +++ b/clang/lib/Headers/emmintrin.h @@ -1266,7 +1266,7 @@ static __inline__ int __attribute__((__always_inline__, __nodebug__)) _mm_extract_epi16(__m128i __a, int __imm) { __v8hi __b = (__v8hi)__a; - return (unsigned short)__b[__imm]; + return (unsigned short)__b[__imm & 7]; } static __inline__ __m128i __attribute__((__always_inline__, __nodebug__)) diff --git a/clang/test/CodeGen/sse-builtins.c b/clang/test/CodeGen/sse-builtins.c index 559d855547b..cee9b3c2a5d 100644 --- a/clang/test/CodeGen/sse-builtins.c +++ b/clang/test/CodeGen/sse-builtins.c @@ -206,3 +206,10 @@ void test_stream_si128(__m128i x, void *y) { // CHECK: store {{.*}} <2 x i64>* {{.*}}, align 16, !nontemporal _mm_stream_si128(y, x); } + +void test_extract_epi16(__m128i __a) { + // CHECK-LABEL: define void @test_extract_epi16 + // CHECK: [[x:%.*]] = and i32 %{{.*}}, 7 + // CHECK: extractelement <8 x i16> %{{.*}}, i32 [[x]] + _mm_extract_epi16(__a, 8); +} |
