ae2b8ede40
As mentioned in the PR and as https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mask_popcnt_epi also documents, _mm*_popcnt_epi* intrinsics are consistent with all other unary AVX512* intrinsics regarding arguments, i.e. the _mm*_whatever has just single argument (called a in the docs, and __A in the GCC headers), _mm*_mask_whatever has 3 arguments (called src, k, a in the docs and _W, __U, __A in GCC headers) and _mm*_maskz_whatever 2 arguments (called k, a in the docs and __U, __A in GCC headers). Unfortunately, whomever implemented the _mm*_popcnt_epi* intrinsics got it wrong for the _mm*_mask_popcnt_epi* ones, calling the args __A, __U, __B and not passing them in the canonical order to the builtins, making it API incompatible with ICC as well as clang (tested on godbolts clang 7/8/9/trunk and ICC 19.0.{0,1}, older clang/ICC don't understand those, so it isn't that it used to be broken even in other compilers and got changed afterwards). 2020-02-13 Jakub Jelinek <jakub@redhat.com> PR target/93696 * config/i386/avx512bitalgintrin.h (_mm512_mask_popcnt_epi8, _mm512_mask_popcnt_epi16, _mm256_mask_popcnt_epi8, _mm256_mask_popcnt_epi16, _mm_mask_popcnt_epi8, _mm_mask_popcnt_epi16): Rename __B argument to __A and __A to __W, pass __A to the builtin followed by __W instead of __A followed by __B. * config/i386/avx512vpopcntdqintrin.h (_mm512_mask_popcnt_epi32, _mm512_mask_popcnt_epi64): Likewise. * config/i386/avx512vpopcntdqvlintrin.h (_mm_mask_popcnt_epi32, _mm256_mask_popcnt_epi32, _mm_mask_popcnt_epi64, _mm256_mask_popcnt_epi64): Likewise. * gcc.target/i386/pr93696-1.c: New test. * gcc.target/i386/pr93696-2.c: New test. * gcc.target/i386/avx512bitalg-vpopcntw-1.c (TEST): Fix argument order of _mm*_mask_popcnt_*. * gcc.target/i386/avx512vpopcntdq-vpopcntq-1.c (TEST): Likewise. * gcc.target/i386/avx512vpopcntdq-vpopcntd-1.c (TEST): Likewise. * gcc.target/i386/avx512bitalg-vpopcntb-1.c (TEST): Likewise. * gcc.target/i386/avx512bitalg-vpopcntb.c (foo): Likewise. * gcc.target/i386/avx512bitalg-vpopcntbvl.c (foo): Likewise. * gcc.target/i386/avx512vpopcntdq-vpopcntd.c (foo): Likewise. * gcc.target/i386/avx512bitalg-vpopcntwvl.c (foo): Likewise. * gcc.target/i386/avx512bitalg-vpopcntw.c (foo): Likewise. * gcc.target/i386/avx512vpopcntdq-vpopcntq.c (foo): Likewise. |
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