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| author | Craig Topper <craig.topper@intel.com> | 2018-06-04 19:28:09 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@intel.com> | 2018-06-04 19:28:09 +0000 |
| commit | edfb78dee78bc88f0e0aa12f1967b24f5d8f45ee (patch) | |
| tree | 2ac550b60010deaf72e0428e0c6e0738f899333f /lib/Headers/avx512fintrin.h | |
| parent | 51f877dbebe07f539f3f24acb88ef4f3f0737339 (diff) | |
| download | clang-edfb78dee78bc88f0e0aa12f1967b24f5d8f45ee.tar.gz | |
[X86] Avoid passing _mm_undefined* to builtin_shufflevector if we are able to pass the first input a second time.
This is more consistent with other usages of builtin_shufflevector. Later optimization passes or codegen will detect the duplicate vector and replace it with undef. Using _mm_undefined just puts a zeroinitializer that still needs to be optimized out later.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@333944 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Headers/avx512fintrin.h')
| -rw-r--r-- | lib/Headers/avx512fintrin.h | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/lib/Headers/avx512fintrin.h b/lib/Headers/avx512fintrin.h index abf2da25f2..9f514bc41a 100644 --- a/lib/Headers/avx512fintrin.h +++ b/lib/Headers/avx512fintrin.h @@ -212,8 +212,7 @@ _mm512_undefined_epi32(void) static __inline__ __m512i __DEFAULT_FN_ATTRS _mm512_broadcastd_epi32 (__m128i __A) { - return (__m512i)__builtin_shufflevector((__v4si) __A, - (__v4si)_mm_undefined_si128(), + return (__m512i)__builtin_shufflevector((__v4si) __A, (__v4si) __A, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); } @@ -236,8 +235,7 @@ _mm512_maskz_broadcastd_epi32 (__mmask16 __M, __m128i __A) static __inline__ __m512i __DEFAULT_FN_ATTRS _mm512_broadcastq_epi64 (__m128i __A) { - return (__m512i)__builtin_shufflevector((__v2di) __A, - (__v2di) _mm_undefined_si128(), + return (__m512i)__builtin_shufflevector((__v2di) __A, (__v2di) __A, 0, 0, 0, 0, 0, 0, 0, 0); } @@ -344,8 +342,7 @@ _mm512_maskz_set1_epi64(__mmask8 __M, long long __A) static __inline__ __m512 __DEFAULT_FN_ATTRS _mm512_broadcastss_ps(__m128 __A) { - return (__m512)__builtin_shufflevector((__v4sf) __A, - (__v4sf)_mm_undefined_ps(), + return (__m512)__builtin_shufflevector((__v4sf) __A, (__v4sf) __A, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); } @@ -395,8 +392,7 @@ _mm512_set4_ps (float __A, float __B, float __C, float __D) static __inline__ __m512d __DEFAULT_FN_ATTRS _mm512_broadcastsd_pd(__m128d __A) { - return (__m512d)__builtin_shufflevector((__v2df) __A, - (__v2df) _mm_undefined_pd(), + return (__m512d)__builtin_shufflevector((__v2df) __A, (__v2df) __A, 0, 0, 0, 0, 0, 0, 0, 0); } |