diff options
| author | Mikhail Dvoretckii <mikhail.dvoretckii@intel.com> | 2018-07-10 08:22:44 +0000 |
|---|---|---|
| committer | Mikhail Dvoretckii <mikhail.dvoretckii@intel.com> | 2018-07-10 08:22:44 +0000 |
| commit | b4d2cac846d91bba7f952a0ce7651425fb56d585 (patch) | |
| tree | 6d93930c25e982f773813ed48f7791b801ab82c3 /lib/Headers/avx512vlbwintrin.h | |
| parent | 5734eced0745f4cf3d04c6b07d5d048d8a785537 (diff) | |
[X86] Lowering integer truncation intrinsics to native IR
This patch lowers the _mm[256|512]_cvtepi{64|32|16}_epi{32|16|8} intrinsics to
native IR in cases where the result's length is less than 128 bits.
The resulting IR for 256-bit inputs is folded into VPMOV instructions, while for
128-bit inputs the vpshufb (or, in the 64-to-32-bit case, vinsertps)
instructions are generated instead
Differential Revision: https://reviews.llvm.org/D48712
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@336643 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Headers/avx512vlbwintrin.h')
| -rw-r--r-- | lib/Headers/avx512vlbwintrin.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/lib/Headers/avx512vlbwintrin.h b/lib/Headers/avx512vlbwintrin.h index 72e07d0541..1b038dd04d 100644 --- a/lib/Headers/avx512vlbwintrin.h +++ b/lib/Headers/avx512vlbwintrin.h @@ -1496,10 +1496,10 @@ _mm256_maskz_cvtusepi16_epi8 (__mmask16 __M, __m256i __A) { static __inline__ __m128i __DEFAULT_FN_ATTRS128 _mm_cvtepi16_epi8 (__m128i __A) { - - return (__m128i) __builtin_ia32_pmovwb128_mask ((__v8hi) __A, - (__v16qi) _mm_setzero_si128(), - (__mmask8) -1); + return (__m128i)__builtin_shufflevector( + __builtin_convertvector((__v8hi)__A, __v8qi), + (__v8qi){0, 0, 0, 0, 0, 0, 0, 0}, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, + 12, 13, 14, 15); } static __inline__ __m128i __DEFAULT_FN_ATTRS128 |