[PATCH] D20468: [X86][AVX] Ensure zero-extension of _mm256_extract_epi8 and _mm256_extract_epi16
Michael Kuperstein via cfe-commits
cfe-commits at lists.llvm.org
Fri May 20 08:00:21 PDT 2016
mkuper added a comment.
Could you point me to where in the documentation it says they must be zero-extended?
The Intel intrinsics guide actually has them with shorter return types:
__int8 _mm256_extract_epi8 (__m256i a, const int index)
__int16 _mm256_extract_epi16 (__m256i a, const int index)
Repository:
rL LLVM
http://reviews.llvm.org/D20468
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