diff options
| author | Matthias Kretz <m.kretz@gsi.de> | 2021-06-24 14:20:15 +0100 |
|---|---|---|
| committer | Jonathan Wakely <jwakely@redhat.com> | 2021-06-24 14:33:20 +0100 |
| commit | d5125819d86274383041571daa3698d72bbac661 (patch) | |
| tree | 713d7b97d61e6d8c70f5078ffab2cbccfeaf2e5a | |
| parent | 5014f12509980d51cfbb34bb61b1605356592afd (diff) | |
| download | gcc-d5125819d86274383041571daa3698d72bbac661.zip gcc-d5125819d86274383041571daa3698d72bbac661.tar.gz gcc-d5125819d86274383041571daa3698d72bbac661.tar.bz2 | |
libstdc++: Avoid raising fp exceptions in trunc, floor, and ceil
Signed-off-by: Matthias Kretz <m.kretz@gsi.de>
libstdc++-v3/ChangeLog:
* include/experimental/bits/simd_x86.h (_S_trunc, _S_floor)
(_S_ceil): Set bit 8 (_MM_FROUND_NO_EXC) on AVX and SSE4.1
roundp[sd] calls.
| -rw-r--r-- | libstdc++-v3/include/experimental/bits/simd_x86.h | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/libstdc++-v3/include/experimental/bits/simd_x86.h b/libstdc++-v3/include/experimental/bits/simd_x86.h index 5706bf6..34633c0 100644 --- a/libstdc++-v3/include/experimental/bits/simd_x86.h +++ b/libstdc++-v3/include/experimental/bits/simd_x86.h @@ -2657,13 +2657,13 @@ template <typename _Abi> else if constexpr (__is_avx512_pd<_Tp, _Np>()) return _mm512_roundscale_pd(__x, 0x0b); else if constexpr (__is_avx_ps<_Tp, _Np>()) - return _mm256_round_ps(__x, 0x3); + return _mm256_round_ps(__x, 0xb); else if constexpr (__is_avx_pd<_Tp, _Np>()) - return _mm256_round_pd(__x, 0x3); + return _mm256_round_pd(__x, 0xb); else if constexpr (__have_sse4_1 && __is_sse_ps<_Tp, _Np>()) - return __auto_bitcast(_mm_round_ps(__to_intrin(__x), 0x3)); + return __auto_bitcast(_mm_round_ps(__to_intrin(__x), 0xb)); else if constexpr (__have_sse4_1 && __is_sse_pd<_Tp, _Np>()) - return _mm_round_pd(__x, 0x3); + return _mm_round_pd(__x, 0xb); else if constexpr (__is_sse_ps<_Tp, _Np>()) { auto __truncated @@ -2786,13 +2786,13 @@ template <typename _Abi> else if constexpr (__is_avx512_pd<_Tp, _Np>()) return _mm512_roundscale_pd(__x, 0x09); else if constexpr (__is_avx_ps<_Tp, _Np>()) - return _mm256_round_ps(__x, 0x1); + return _mm256_round_ps(__x, 0x9); else if constexpr (__is_avx_pd<_Tp, _Np>()) - return _mm256_round_pd(__x, 0x1); + return _mm256_round_pd(__x, 0x9); else if constexpr (__have_sse4_1 && __is_sse_ps<_Tp, _Np>()) - return __auto_bitcast(_mm_floor_ps(__to_intrin(__x))); + return __auto_bitcast(_mm_round_ps(__to_intrin(__x), 0x9)); else if constexpr (__have_sse4_1 && __is_sse_pd<_Tp, _Np>()) - return _mm_floor_pd(__x); + return _mm_round_pd(__x, 0x9); else return _Base::_S_floor(__x); } @@ -2808,13 +2808,13 @@ template <typename _Abi> else if constexpr (__is_avx512_pd<_Tp, _Np>()) return _mm512_roundscale_pd(__x, 0x0a); else if constexpr (__is_avx_ps<_Tp, _Np>()) - return _mm256_round_ps(__x, 0x2); + return _mm256_round_ps(__x, 0xa); else if constexpr (__is_avx_pd<_Tp, _Np>()) - return _mm256_round_pd(__x, 0x2); + return _mm256_round_pd(__x, 0xa); else if constexpr (__have_sse4_1 && __is_sse_ps<_Tp, _Np>()) - return __auto_bitcast(_mm_ceil_ps(__to_intrin(__x))); + return __auto_bitcast(_mm_round_ps(__to_intrin(__x), 0xa)); else if constexpr (__have_sse4_1 && __is_sse_pd<_Tp, _Np>()) - return _mm_ceil_pd(__x); + return _mm_round_pd(__x, 0xa); else return _Base::_S_ceil(__x); } |