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| author | Thiago Macieira <thiago.macieira@intel.com> | 2018-09-13 22:57:30 -0700 |
|---|---|---|
| committer | Thiago Macieira <thiago.macieira@intel.com> | 2018-09-15 20:55:25 +0000 |
| commit | d241616e412c9f33fbc4bffce8811aaab79313dd (patch) | |
| tree | 0ef938123a75bc844e6f2447e2be1eae0061d10a /config.tests | |
| parent | 6bb0cbc6865911c31f5edee7c24f270d265bd46d (diff) | |
AVX512 test: an intrinsic that GCC forgot to implement prior to GCC8
_mm512_mask_cvtepi32_storeu_epi8 is VPMOVDB (convert from 32-bit to 8-bit
with truncation) where the destination is a memory address, with an
OpMask register used to indicate which of the lanes in the vector to
store. Similarly, _mm512_mask_cvtepi16_storeu_epi8 is VPMOVWB (convert
from 16-bit o 8-bit), which is useful for UTF-16 to Latin1 conversion.
Change-Id: I8f261579aad648fdb4f0fffd15542ea306841ce6
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
Diffstat (limited to 'config.tests')
| -rw-r--r-- | config.tests/avx512/avx512.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/config.tests/avx512/avx512.cpp b/config.tests/avx512/avx512.cpp index 29e88ebf15..4d47db8463 100644 --- a/config.tests/avx512/avx512.cpp +++ b/config.tests/avx512/avx512.cpp @@ -65,6 +65,10 @@ int main(int, char**argv) d = _mm512_loadu_pd((double *)argv + 64); f = _mm512_loadu_ps((float *)argv + 128); + // some intrinsic that GCC forgot until GCC 8 + i = _mm512_maskz_set1_epi32(m, '?'); + _mm512_mask_cvtepi32_storeu_epi8(argv, m, i); + #ifdef WANT_AVX512ER /* AVX512 Exponential and Reciprocal */ f = _mm512_exp2a23_round_ps(f, 8); @@ -84,6 +88,7 @@ int main(int, char**argv) #ifdef WANT_AVX512BW /* AVX512 Byte and Word support */ i = _mm512_mask_loadu_epi8(i, m, argv - 8); + _mm512_mask_cvtepi16_storeu_epi8(argv + 8, m, i); #endif #ifdef WANT_AVX512VL /* AVX512 Vector Length */ |