diff options
Diffstat (limited to 'vendor/packed_simd/src/codegen/reductions/mask/x86/sse2.rs')
-rw-r--r-- | vendor/packed_simd/src/codegen/reductions/mask/x86/sse2.rs | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/vendor/packed_simd/src/codegen/reductions/mask/x86/sse2.rs b/vendor/packed_simd/src/codegen/reductions/mask/x86/sse2.rs new file mode 100644 index 000000000..bbb52fa47 --- /dev/null +++ b/vendor/packed_simd/src/codegen/reductions/mask/x86/sse2.rs @@ -0,0 +1,68 @@ +//! Mask reductions implementation for `x86` and `x86_64` targets with `SSE2`. +#![allow(unused)] + +/// `x86`/`x86_64` 128-bit m64x2 `SSE2` implementation +macro_rules! x86_m64x2_sse2_impl { + ($id:ident) => { + impl All for $id { + #[inline] + #[target_feature(enable = "sse")] + unsafe fn all(self) -> bool { + #[cfg(target_arch = "x86")] + use crate::arch::x86::_mm_movemask_pd; + #[cfg(target_arch = "x86_64")] + use crate::arch::x86_64::_mm_movemask_pd; + // _mm_movemask_pd(a) creates a 2bit mask containing the + // most significant bit of each lane of `a`. If all + // bits are set, then all 2 lanes of the mask are + // true. + _mm_movemask_pd(crate::mem::transmute(self)) == 0b_11_i32 + } + } + impl Any for $id { + #[inline] + #[target_feature(enable = "sse")] + unsafe fn any(self) -> bool { + #[cfg(target_arch = "x86")] + use crate::arch::x86::_mm_movemask_pd; + #[cfg(target_arch = "x86_64")] + use crate::arch::x86_64::_mm_movemask_pd; + + _mm_movemask_pd(crate::mem::transmute(self)) != 0 + } + } + }; +} + +/// `x86`/`x86_64` 128-bit m8x16 `SSE2` implementation +macro_rules! x86_m8x16_sse2_impl { + ($id:ident) => { + impl All for $id { + #[inline] + #[target_feature(enable = "sse2")] + unsafe fn all(self) -> bool { + #[cfg(target_arch = "x86")] + use crate::arch::x86::_mm_movemask_epi8; + #[cfg(target_arch = "x86_64")] + use crate::arch::x86_64::_mm_movemask_epi8; + // _mm_movemask_epi8(a) creates a 16bit mask containing the + // most significant bit of each byte of `a`. If all + // bits are set, then all 16 lanes of the mask are + // true. + _mm_movemask_epi8(crate::mem::transmute(self)) == i32::from(u16::max_value()) + } + } + impl Any for $id { + #[inline] + #[target_feature(enable = "sse2")] + unsafe fn any(self) -> bool { + #[cfg(target_arch = "x86")] + use crate::arch::x86::_mm_movemask_epi8; + #[cfg(target_arch = "x86_64")] + use crate::arch::x86_64::_mm_movemask_epi8; + + _mm_movemask_epi8(crate::mem::transmute(self)) != 0 + } + } + }; +} |