diff options
Diffstat (limited to 'third_party/rust/packed_simd/src/api/cmp/ord.rs')
-rw-r--r-- | third_party/rust/packed_simd/src/api/cmp/ord.rs | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/third_party/rust/packed_simd/src/api/cmp/ord.rs b/third_party/rust/packed_simd/src/api/cmp/ord.rs new file mode 100644 index 0000000000..e54ba3bfde --- /dev/null +++ b/third_party/rust/packed_simd/src/api/cmp/ord.rs @@ -0,0 +1,43 @@ +//! Implements `Ord` for vector types. + +macro_rules! impl_cmp_ord { + ( + [$elem_ty:ident; $elem_count:expr]: + $id:ident | $test_tt:tt | + ($true:expr, $false:expr) + ) => { + impl $id { + /// Returns a wrapper that implements `Ord`. + #[inline] + pub fn lex_ord(&self) -> LexicographicallyOrdered<$id> { + LexicographicallyOrdered(*self) + } + } + + impl crate::cmp::Ord for LexicographicallyOrdered<$id> { + #[inline] + fn cmp(&self, other: &Self) -> crate::cmp::Ordering { + match self.partial_cmp(other) { + Some(x) => x, + None => unsafe { crate::hint::unreachable_unchecked() }, + } + } + } + + test_if!{ + $test_tt: + paste::item! { + pub mod [<$id _cmp_ord>] { + use super::*; + #[cfg_attr(not(target_arch = "wasm32"), test)] #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test)] + fn eq() { + fn foo<E: crate::cmp::Ord>(_: E) {} + let a = $id::splat($false); + foo(a.partial_lex_ord()); + foo(a.lex_ord()); + } + } + } + } + }; +} |