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Modify autoconf tests for intrinsics to stop clang from optimizing them away.

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Signed-off-by: Jean-Marc Valin <jmvalin@jmvalin.ca>
This commit is contained in:
Jonathan Lennox 2016-05-31 15:52:36 -04:00 • committed by Jean-Marc Valin
parent 99aaff599e
commit dc92dab20a
1 changed files with 21 additions and 9 deletions
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30
configure.ac
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@ -472,6 +472,7 @@ AS_IF([test x"$enable_intrinsics" = x"yes"],[
[[ [[
static float32x4_t A0, A1, SUMM; static float32x4_t A0, A1, SUMM;
SUMM = vmlaq_f32(SUMM, A0, A1); SUMM = vmlaq_f32(SUMM, A0, A1);
return (int)vgetq_lane_f32(SUMM, 0);
]] ]]
) )
AS_IF([test x"$OPUS_ARM_MAY_HAVE_NEON_INTR" = x"1" && test x"$OPUS_ARM_PRESUME_NEON_INTR" != x"1"], AS_IF([test x"$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_MAY_HAVE_SSE],
[OPUS_X86_PRESUME_SSE], [OPUS_X86_PRESUME_SSE],
[[#include <xmmintrin.h> [[#include <xmmintrin.h>
#include <time.h>
]], ]],
[[ [[
static __m128 mtest; __m128 mtest;
mtest = _mm_setzero_ps(); 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"], 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"$enable_intrinsics" = x"yes"],[
[OPUS_X86_MAY_HAVE_SSE2], [OPUS_X86_MAY_HAVE_SSE2],
[OPUS_X86_PRESUME_SSE2], [OPUS_X86_PRESUME_SSE2],
[[#include <emmintrin.h> [[#include <emmintrin.h>
#include <time.h>
]], ]],
[[ [[
static __m128i mtest; __m128i mtest;
mtest = _mm_setzero_si128(); mtest = _mm_set1_epi32((int)time(NULL));
mtest = _mm_mul_epu32(mtest, mtest);
return _mm_cvtsi128_si32(mtest);
]] ]]
) )
AS_IF([test x"$OPUS_X86_MAY_HAVE_SSE2" = x"1" && test x"$OPUS_X86_PRESUME_SSE2" != x"1"], AS_IF([test x"$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_MAY_HAVE_SSE4_1],
[OPUS_X86_PRESUME_SSE4_1], [OPUS_X86_PRESUME_SSE4_1],
[[#include <smmintrin.h> [[#include <smmintrin.h>
#include <time.h>
]], ]],
[[ [[
static __m128i mtest; __m128i mtest;
mtest = _mm_setzero_si128(); mtest = _mm_set1_epi32((int)time(NULL));
mtest = _mm_cmpeq_epi64(mtest, mtest); 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"], 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"$enable_intrinsics" = x"yes"],[
[OPUS_X86_MAY_HAVE_AVX], [OPUS_X86_MAY_HAVE_AVX],
[OPUS_X86_PRESUME_AVX], [OPUS_X86_PRESUME_AVX],
[[#include <immintrin.h> [[#include <immintrin.h>
#include <time.h>
]], ]],
[[ [[
static __m256 mtest; __m256 mtest;
mtest = _mm256_setzero_ps(); mtest = _mm256_set1_ps((float)time(NULL));
mtest = _mm256_addsub_ps(mtest, mtest);
return _mm_cvtss_si32(_mm256_extractf128_ps(mtest, 0));
]] ]]
) )
AS_IF([test x"$OPUS_X86_MAY_HAVE_AVX" = x"1" && test x"$OPUS_X86_PRESUME_AVX" != x"1"], AS_IF([test x"$OPUS_X86_MAY_HAVE_AVX" = x"1" && test x"$OPUS_X86_PRESUME_AVX" != x"1"],