| //! Mask reductions implementation for `x86` and `x86_64` targets with `AVX` |
| |
| /// `x86`/`x86_64` 256-bit `AVX` implementation |
| /// FIXME: it might be faster here to do two `_mm_movmask_epi8` |
| #[cfg(target_feature = "avx")] |
| macro_rules! x86_m8x32_avx_impl { |
| ($id:ident) => { |
| impl All for $id { |
| #[inline] |
| #[target_feature(enable = "avx")] |
| unsafe fn all(self) -> bool { |
| #[cfg(target_arch = "x86")] |
| use crate::arch::x86::_mm256_testc_si256; |
| #[cfg(target_arch = "x86_64")] |
| use crate::arch::x86_64::_mm256_testc_si256; |
| _mm256_testc_si256(crate::mem::transmute(self), crate::mem::transmute($id::splat(true))) != 0 |
| } |
| } |
| impl Any for $id { |
| #[inline] |
| #[target_feature(enable = "avx")] |
| unsafe fn any(self) -> bool { |
| #[cfg(target_arch = "x86")] |
| use crate::arch::x86::_mm256_testz_si256; |
| #[cfg(target_arch = "x86_64")] |
| use crate::arch::x86_64::_mm256_testz_si256; |
| _mm256_testz_si256(crate::mem::transmute(self), crate::mem::transmute(self)) == 0 |
| } |
| } |
| }; |
| } |
| |
| /// `x86`/`x86_64` 256-bit m32x8 `AVX` implementation |
| macro_rules! x86_m32x8_avx_impl { |
| ($id:ident) => { |
| impl All for $id { |
| #[inline] |
| #[target_feature(enable = "sse")] |
| unsafe fn all(self) -> bool { |
| #[cfg(target_arch = "x86")] |
| use crate::arch::x86::_mm256_movemask_ps; |
| #[cfg(target_arch = "x86_64")] |
| use crate::arch::x86_64::_mm256_movemask_ps; |
| // _mm256_movemask_ps(a) creates a 8bit mask containing the |
| // most significant bit of each lane of `a`. If all bits are |
| // set, then all 8 lanes of the mask are true. |
| _mm256_movemask_ps(crate::mem::transmute(self)) == 0b_1111_1111_i32 |
| } |
| } |
| impl Any for $id { |
| #[inline] |
| #[target_feature(enable = "sse")] |
| unsafe fn any(self) -> bool { |
| #[cfg(target_arch = "x86")] |
| use crate::arch::x86::_mm256_movemask_ps; |
| #[cfg(target_arch = "x86_64")] |
| use crate::arch::x86_64::_mm256_movemask_ps; |
| |
| _mm256_movemask_ps(crate::mem::transmute(self)) != 0 |
| } |
| } |
| }; |
| } |
| |
| /// `x86`/`x86_64` 256-bit m64x4 `AVX` implementation |
| macro_rules! x86_m64x4_avx_impl { |
| ($id:ident) => { |
| impl All for $id { |
| #[inline] |
| #[target_feature(enable = "sse")] |
| unsafe fn all(self) -> bool { |
| #[cfg(target_arch = "x86")] |
| use crate::arch::x86::_mm256_movemask_pd; |
| #[cfg(target_arch = "x86_64")] |
| use crate::arch::x86_64::_mm256_movemask_pd; |
| // _mm256_movemask_pd(a) creates a 4bit mask containing the |
| // most significant bit of each lane of `a`. If all bits are |
| // set, then all 4 lanes of the mask are true. |
| _mm256_movemask_pd(crate::mem::transmute(self)) == 0b_1111_i32 |
| } |
| } |
| impl Any for $id { |
| #[inline] |
| #[target_feature(enable = "sse")] |
| unsafe fn any(self) -> bool { |
| #[cfg(target_arch = "x86")] |
| use crate::arch::x86::_mm256_movemask_pd; |
| #[cfg(target_arch = "x86_64")] |
| use crate::arch::x86_64::_mm256_movemask_pd; |
| |
| _mm256_movemask_pd(crate::mem::transmute(self)) != 0 |
| } |
| } |
| }; |
| } |