diff options
| author | Jonathan Lennox <jonathan@vidyo.com> | 2016-05-31 22:52:36 +0300 |
|---|---|---|
| committer | Jean-Marc Valin <jmvalin@jmvalin.ca> | 2016-06-01 00:55:28 +0300 |
| commit | dc92dab20a86f4d3a807ab1cbb6be265f4022212 (patch) | |
| tree | 95a4e2595f77a3cf912f5653162cd00e68b21482 /configure.ac | |
| parent | 99aaff599e77cda8d6d709288a087d0fcdaef13d (diff) | |
Modify autoconf tests for intrinsics to stop clang from optimizing them away.
Signed-off-by: Jean-Marc Valin <jmvalin@jmvalin.ca>
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 30 |
1 files changed, 21 insertions, 9 deletions
diff --git a/configure.ac b/configure.ac index a67aa37a..c722556b 100644 --- a/configure.ac +++ b/configure.ac @@ -472,6 +472,7 @@ AS_IF([test x"$enable_intrinsics" = x"yes"],[ [[ static float32x4_t A0, A1, SUMM; SUMM = vmlaq_f32(SUMM, A0, A1); + return (int)vgetq_lane_f32(SUMM, 0); ]] ) AS_IF([test x"$OPUS_ARM_MAY_HAVE_NEON_INTR" = x"1" && test x"$OPUS_ARM_PRESUME_NEON_INTR" != x"1"], @@ -521,10 +522,13 @@ AS_IF([test x"$enable_intrinsics" = x"yes"],[ [OPUS_X86_MAY_HAVE_SSE], [OPUS_X86_PRESUME_SSE], [[#include <xmmintrin.h> + #include <time.h> ]], [[ - static __m128 mtest; - mtest = _mm_setzero_ps(); + __m128 mtest; + mtest = _mm_set1_ps((float)time(NULL)); + mtest = _mm_mul_ps(mtest, mtest); + return _mm_cvtss_si32(mtest); ]] ) AS_IF([test x"$OPUS_X86_MAY_HAVE_SSE" = x"1" && test x"$OPUS_X86_PRESUME_SSE" != x"1"], @@ -539,10 +543,13 @@ AS_IF([test x"$enable_intrinsics" = x"yes"],[ [OPUS_X86_MAY_HAVE_SSE2], [OPUS_X86_PRESUME_SSE2], [[#include <emmintrin.h> + #include <time.h> ]], [[ - static __m128i mtest; - mtest = _mm_setzero_si128(); + __m128i mtest; + mtest = _mm_set1_epi32((int)time(NULL)); + mtest = _mm_mul_epu32(mtest, mtest); + return _mm_cvtsi128_si32(mtest); ]] ) AS_IF([test x"$OPUS_X86_MAY_HAVE_SSE2" = x"1" && test x"$OPUS_X86_PRESUME_SSE2" != x"1"], @@ -557,11 +564,13 @@ AS_IF([test x"$enable_intrinsics" = x"yes"],[ [OPUS_X86_MAY_HAVE_SSE4_1], [OPUS_X86_PRESUME_SSE4_1], [[#include <smmintrin.h> + #include <time.h> ]], [[ - static __m128i mtest; - mtest = _mm_setzero_si128(); - mtest = _mm_cmpeq_epi64(mtest, mtest); + __m128i mtest; + mtest = _mm_set1_epi32((int)time(NULL)); + mtest = _mm_mul_epi32(mtest, mtest); + return _mm_cvtsi128_si32(mtest); ]] ) AS_IF([test x"$OPUS_X86_MAY_HAVE_SSE4_1" = x"1" && test x"$OPUS_X86_PRESUME_SSE4_1" != x"1"], @@ -576,10 +585,13 @@ AS_IF([test x"$enable_intrinsics" = x"yes"],[ [OPUS_X86_MAY_HAVE_AVX], [OPUS_X86_PRESUME_AVX], [[#include <immintrin.h> + #include <time.h> ]], [[ - static __m256 mtest; - mtest = _mm256_setzero_ps(); + __m256 mtest; + mtest = _mm256_set1_ps((float)time(NULL)); + mtest = _mm256_addsub_ps(mtest, mtest); + return _mm_cvtss_si32(_mm256_extractf128_ps(mtest, 0)); ]] ) AS_IF([test x"$OPUS_X86_MAY_HAVE_AVX" = x"1" && test x"$OPUS_X86_PRESUME_AVX" != x"1"], |