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Replace second (hopefully unused) access of macro input argument with zero vector to be safer. 

Suggested by Craig Topper in D8275.

This is a follow-on to r232052.

llvm-svn: 232061
This commit is contained in:
Sanjay Patel 2015-03-12 17:23:46 +00:00
parent 520b0e45aa
commit f204b00940
1 changed files with 3 additions and 3 deletions
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6
clang/lib/Headers/avxintrin.h
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@ -1181,7 +1181,7 @@ _mm256_castsi128_si256(__m128i __a)
#define _mm256_extractf128_ps(V, M) __extension__ ({ \
(__m128)__builtin_shufflevector( \
(__v8sf)(V), \
(__v8sf)(V), \
(__v8sf)(_mm256_setzero_ps()), \
(((M) & 1) ? 4 : 0), \
(((M) & 1) ? 5 : 1), \
(((M) & 1) ? 6 : 2), \
@ -1190,14 +1190,14 @@ _mm256_castsi128_si256(__m128i __a)
#define _mm256_extractf128_pd(V, M) __extension__ ({ \
(__m128d)__builtin_shufflevector( \
(__v4df)(V), \
(__v4df)(V), \
(__v4df)(_mm256_setzero_pd()), \
(((M) & 1) ? 2 : 0), \
(((M) & 1) ? 3 : 1) );})
#define _mm256_extractf128_si256(V, M) __extension__ ({ \
(__m128i)__builtin_shufflevector( \
(__v4di)(V), \
(__v4di)(V), \
(__v4di)(_mm256_setzero_si256()), \
(((M) & 1) ? 2 : 0), \
(((M) & 1) ? 3 : 1) );})