diff options
Diffstat (limited to 'third_party/rust/packed_simd/src/codegen/reductions/mask/fallback_impl.rs')
| -rw-r--r-- | third_party/rust/packed_simd/src/codegen/reductions/mask/fallback_impl.rs | 237 |
1 files changed, 0 insertions, 237 deletions
diff --git a/third_party/rust/packed_simd/src/codegen/reductions/mask/fallback_impl.rs b/third_party/rust/packed_simd/src/codegen/reductions/mask/fallback_impl.rs deleted file mode 100644 index 0d246e2fda..0000000000 --- a/third_party/rust/packed_simd/src/codegen/reductions/mask/fallback_impl.rs +++ /dev/null @@ -1,237 +0,0 @@ -//! Default implementation of a mask reduction for any target. - -macro_rules! fallback_to_other_impl { - ($id:ident, $other:ident) => { - impl All for $id { - #[inline] - unsafe fn all(self) -> bool { - let m: $other = crate::mem::transmute(self); - m.all() - } - } - impl Any for $id { - #[inline] - unsafe fn any(self) -> bool { - let m: $other = crate::mem::transmute(self); - m.any() - } - } - }; -} - -/// Fallback implementation. -macro_rules! fallback_impl { - // 16-bit wide masks: - (m8x2) => { - impl All for m8x2 { - #[inline] - unsafe fn all(self) -> bool { - let i: u16 = crate::mem::transmute(self); - i == u16::max_value() - } - } - impl Any for m8x2 { - #[inline] - unsafe fn any(self) -> bool { - let i: u16 = crate::mem::transmute(self); - i != 0 - } - } - }; - // 32-bit wide masks - (m8x4) => { - impl All for m8x4 { - #[inline] - unsafe fn all(self) -> bool { - let i: u32 = crate::mem::transmute(self); - i == u32::max_value() - } - } - impl Any for m8x4 { - #[inline] - unsafe fn any(self) -> bool { - let i: u32 = crate::mem::transmute(self); - i != 0 - } - } - }; - (m16x2) => { - fallback_to_other_impl!(m16x2, m8x4); - }; - // 64-bit wide masks: - (m8x8) => { - impl All for m8x8 { - #[inline] - unsafe fn all(self) -> bool { - let i: u64 = crate::mem::transmute(self); - i == u64::max_value() - } - } - impl Any for m8x8 { - #[inline] - unsafe fn any(self) -> bool { - let i: u64 = crate::mem::transmute(self); - i != 0 - } - } - }; - (m16x4) => { - fallback_to_other_impl!(m16x4, m8x8); - }; - (m32x2) => { - fallback_to_other_impl!(m32x2, m16x4); - }; - // FIXME: 64x1 maxk - // 128-bit wide masks: - (m8x16) => { - impl All for m8x16 { - #[inline] - unsafe fn all(self) -> bool { - let i: u128 = crate::mem::transmute(self); - i == u128::max_value() - } - } - impl Any for m8x16 { - #[inline] - unsafe fn any(self) -> bool { - let i: u128 = crate::mem::transmute(self); - i != 0 - } - } - }; - (m16x8) => { - fallback_to_other_impl!(m16x8, m8x16); - }; - (m32x4) => { - fallback_to_other_impl!(m32x4, m16x8); - }; - (m64x2) => { - fallback_to_other_impl!(m64x2, m32x4); - }; - (m128x1) => { - fallback_to_other_impl!(m128x1, m64x2); - }; - // 256-bit wide masks - (m8x32) => { - impl All for m8x32 { - #[inline] - unsafe fn all(self) -> bool { - let i: [u128; 2] = crate::mem::transmute(self); - let o: [u128; 2] = [u128::max_value(); 2]; - i == o - } - } - impl Any for m8x32 { - #[inline] - unsafe fn any(self) -> bool { - let i: [u128; 2] = crate::mem::transmute(self); - let o: [u128; 2] = [0; 2]; - i != o - } - } - }; - (m16x16) => { - fallback_to_other_impl!(m16x16, m8x32); - }; - (m32x8) => { - fallback_to_other_impl!(m32x8, m16x16); - }; - (m64x4) => { - fallback_to_other_impl!(m64x4, m32x8); - }; - (m128x2) => { - fallback_to_other_impl!(m128x2, m64x4); - }; - // 512-bit wide masks - (m8x64) => { - impl All for m8x64 { - #[inline] - unsafe fn all(self) -> bool { - let i: [u128; 4] = crate::mem::transmute(self); - let o: [u128; 4] = [u128::max_value(); 4]; - i == o - } - } - impl Any for m8x64 { - #[inline] - unsafe fn any(self) -> bool { - let i: [u128; 4] = crate::mem::transmute(self); - let o: [u128; 4] = [0; 4]; - i != o - } - } - }; - (m16x32) => { - fallback_to_other_impl!(m16x32, m8x64); - }; - (m32x16) => { - fallback_to_other_impl!(m32x16, m16x32); - }; - (m64x8) => { - fallback_to_other_impl!(m64x8, m32x16); - }; - (m128x4) => { - fallback_to_other_impl!(m128x4, m64x8); - }; - // Masks with pointer-sized elements64 - (msizex2) => { - cfg_if! { - if #[cfg(target_pointer_width = "64")] { - fallback_to_other_impl!(msizex2, m64x2); - } else if #[cfg(target_pointer_width = "32")] { - fallback_to_other_impl!(msizex2, m32x2); - } else { - compile_error!("unsupported target_pointer_width"); - } - } - }; - (msizex4) => { - cfg_if! { - if #[cfg(target_pointer_width = "64")] { - fallback_to_other_impl!(msizex4, m64x4); - } else if #[cfg(target_pointer_width = "32")] { - fallback_to_other_impl!(msizex4, m32x4); - } else { - compile_error!("unsupported target_pointer_width"); - } - } - }; - (msizex8) => { - cfg_if! { - if #[cfg(target_pointer_width = "64")] { - fallback_to_other_impl!(msizex8, m64x8); - } else if #[cfg(target_pointer_width = "32")] { - fallback_to_other_impl!(msizex8, m32x8); - } else { - compile_error!("unsupported target_pointer_width"); - } - } - }; -} - -macro_rules! recurse_half { - ($vid:ident, $vid_h:ident) => { - impl All for $vid { - #[inline] - unsafe fn all(self) -> bool { - union U { - halves: ($vid_h, $vid_h), - vec: $vid, - } - let halves = U { vec: self }.halves; - halves.0.all() && halves.1.all() - } - } - impl Any for $vid { - #[inline] - unsafe fn any(self) -> bool { - union U { - halves: ($vid_h, $vid_h), - vec: $vid, - } - let halves = U { vec: self }.halves; - halves.0.any() || halves.1.any() - } - } - }; -} |