diff options
Diffstat (limited to 'vendor/packed_simd_2/src/codegen/reductions/mask/x86/avx2.rs')
-rw-r--r-- | vendor/packed_simd_2/src/codegen/reductions/mask/x86/avx2.rs | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/vendor/packed_simd_2/src/codegen/reductions/mask/x86/avx2.rs b/vendor/packed_simd_2/src/codegen/reductions/mask/x86/avx2.rs new file mode 100644 index 000000000..d37d02342 --- /dev/null +++ b/vendor/packed_simd_2/src/codegen/reductions/mask/x86/avx2.rs @@ -0,0 +1,35 @@ +//! Mask reductions implementation for `x86` and `x86_64` targets with `AVX2`. +#![allow(unused)] + +/// x86/x86_64 256-bit m8x32 AVX2 implementation +macro_rules! x86_m8x32_avx2_impl { + ($id:ident) => { + impl All for $id { + #[inline] + #[target_feature(enable = "sse2")] + unsafe fn all(self) -> bool { + #[cfg(target_arch = "x86")] + use crate::arch::x86::_mm256_movemask_epi8; + #[cfg(target_arch = "x86_64")] + use crate::arch::x86_64::_mm256_movemask_epi8; + // _mm256_movemask_epi8(a) creates a 32bit mask containing the + // most significant bit of each byte of `a`. If all + // bits are set, then all 32 lanes of the mask are + // true. + _mm256_movemask_epi8(crate::mem::transmute(self)) == -1_i32 + } + } + impl Any for $id { + #[inline] + #[target_feature(enable = "sse2")] + unsafe fn any(self) -> bool { + #[cfg(target_arch = "x86")] + use crate::arch::x86::_mm256_movemask_epi8; + #[cfg(target_arch = "x86_64")] + use crate::arch::x86_64::_mm256_movemask_epi8; + + _mm256_movemask_epi8(crate::mem::transmute(self)) != 0 + } + } + }; +} |