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Diffstat (limited to 'vendor/sha1_smol/src/simd.rs')
-rw-r--r-- | vendor/sha1_smol/src/simd.rs | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/vendor/sha1_smol/src/simd.rs b/vendor/sha1_smol/src/simd.rs new file mode 100644 index 000000000..011bbf862 --- /dev/null +++ b/vendor/sha1_smol/src/simd.rs @@ -0,0 +1,169 @@ +// Copyright (c) 2006-2009 Graydon Hoare +// Copyright (c) 2009-2013 Mozilla Foundation + +// Permission is hereby granted, free of charge, to any +// person obtaining a copy of this software and associated +// documentation files (the "Software"), to deal in the +// Software without restriction, including without +// limitation the rights to use, copy, modify, merge, +// publish, distribute, sublicense, and/or sell copies of +// the Software, and to permit persons to whom the Software +// is furnished to do so, subject to the following +// conditions: + +// The above copyright notice and this permission notice +// shall be included in all copies or substantial portions +// of the Software. + +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF +// ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED +// TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A +// PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT +// SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY +// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR +// IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER +// DEALINGS IN THE SOFTWARE. + +pub use self::fake::*; + +pub trait SimdExt { + fn simd_eq(self, rhs: Self) -> Self; +} + +impl SimdExt for fake::u32x4 { + fn simd_eq(self, rhs: Self) -> Self { + if self == rhs { + fake::u32x4(0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff) + } else { + fake::u32x4(0, 0, 0, 0) + } + } +} + +mod fake { + use core::ops::{Add, BitAnd, BitOr, BitXor, Shl, Shr, Sub}; + + #[derive(Clone, Copy, PartialEq, Eq)] + #[allow(non_camel_case_types)] + pub struct u32x4(pub u32, pub u32, pub u32, pub u32); + + impl Add for u32x4 { + type Output = u32x4; + + fn add(self, rhs: u32x4) -> u32x4 { + u32x4( + self.0.wrapping_add(rhs.0), + self.1.wrapping_add(rhs.1), + self.2.wrapping_add(rhs.2), + self.3.wrapping_add(rhs.3), + ) + } + } + + impl Sub for u32x4 { + type Output = u32x4; + + fn sub(self, rhs: u32x4) -> u32x4 { + u32x4( + self.0.wrapping_sub(rhs.0), + self.1.wrapping_sub(rhs.1), + self.2.wrapping_sub(rhs.2), + self.3.wrapping_sub(rhs.3), + ) + } + } + + impl BitAnd for u32x4 { + type Output = u32x4; + + fn bitand(self, rhs: u32x4) -> u32x4 { + u32x4( + self.0 & rhs.0, + self.1 & rhs.1, + self.2 & rhs.2, + self.3 & rhs.3, + ) + } + } + + impl BitOr for u32x4 { + type Output = u32x4; + + fn bitor(self, rhs: u32x4) -> u32x4 { + u32x4( + self.0 | rhs.0, + self.1 | rhs.1, + self.2 | rhs.2, + self.3 | rhs.3, + ) + } + } + + impl BitXor for u32x4 { + type Output = u32x4; + + fn bitxor(self, rhs: u32x4) -> u32x4 { + u32x4( + self.0 ^ rhs.0, + self.1 ^ rhs.1, + self.2 ^ rhs.2, + self.3 ^ rhs.3, + ) + } + } + + impl Shl<usize> for u32x4 { + type Output = u32x4; + + fn shl(self, amt: usize) -> u32x4 { + u32x4(self.0 << amt, self.1 << amt, self.2 << amt, self.3 << amt) + } + } + + impl Shl<u32x4> for u32x4 { + type Output = u32x4; + + fn shl(self, rhs: u32x4) -> u32x4 { + u32x4( + self.0 << rhs.0, + self.1 << rhs.1, + self.2 << rhs.2, + self.3 << rhs.3, + ) + } + } + + impl Shr<usize> for u32x4 { + type Output = u32x4; + + fn shr(self, amt: usize) -> u32x4 { + u32x4(self.0 >> amt, self.1 >> amt, self.2 >> amt, self.3 >> amt) + } + } + + impl Shr<u32x4> for u32x4 { + type Output = u32x4; + + fn shr(self, rhs: u32x4) -> u32x4 { + u32x4( + self.0 >> rhs.0, + self.1 >> rhs.1, + self.2 >> rhs.2, + self.3 >> rhs.3, + ) + } + } + + #[derive(Clone, Copy)] + #[allow(non_camel_case_types)] + pub struct u64x2(pub u64, pub u64); + + impl Add for u64x2 { + type Output = u64x2; + + fn add(self, rhs: u64x2) -> u64x2 { + u64x2(self.0.wrapping_add(rhs.0), self.1.wrapping_add(rhs.1)) + } + } +} |