1 files changed, 65 insertions, 0 deletions
diff --git a/third_party/rust/packed_simd/src/api/cmp/partial_eq.rs b/third_party/rust/packed_simd/src/api/cmp/partial_eq.rs
new file mode 100644
index 0000000000..d69dd47425
--- /dev/null
+++ b/third_party/rust/packed_simd/src/api/cmp/partial_eq.rs
@@ -0,0 +1,65 @@
+//! Implements `PartialEq` for vector types.
+
+macro_rules! impl_cmp_partial_eq {
+    (
+        [$elem_ty:ident; $elem_count:expr]:
+        $id:ident | $test_tt:tt |
+        ($true:expr, $false:expr)
+    ) => {
+        // FIXME: https://github.com/rust-lang-nursery/rust-clippy/issues/2892
+        #[allow(clippy::partialeq_ne_impl)]
+        impl crate::cmp::PartialEq<$id> for $id {
+            #[inline]
+            fn eq(&self, other: &Self) -> bool {
+                $id::eq(*self, *other).all()
+            }
+            #[inline]
+            fn ne(&self, other: &Self) -> bool {
+                $id::ne(*self, *other).any()
+            }
+        }
+
+        // FIXME: https://github.com/rust-lang-nursery/rust-clippy/issues/2892
+        #[allow(clippy::partialeq_ne_impl)]
+        impl crate::cmp::PartialEq<LexicographicallyOrdered<$id>> for LexicographicallyOrdered<$id> {
+            #[inline]
+            fn eq(&self, other: &Self) -> bool {
+                self.0 == other.0
+            }
+            #[inline]
+            fn ne(&self, other: &Self) -> bool {
+                self.0 != other.0
+            }
+        }
+
+        test_if! {
+            $test_tt:
+            paste::item! {
+                pub mod [<$id _cmp_PartialEq>] {
+                    use super::*;
+                    #[cfg_attr(not(target_arch = "wasm32"), test)]
+                    #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test)]
+                    fn partial_eq() {
+                        let a = $id::splat($false);
+                        let b = $id::splat($true);
+
+                        assert!(a != b);
+                        assert!(!(a == b));
+                        assert!(a == a);
+                        assert!(!(a != a));
+
+                        if $id::lanes() > 1 {
+                            let a = $id::splat($false).replace(0, $true);
+                            let b = $id::splat($true);
+
+                            assert!(a != b);
+                            assert!(!(a == b));
+                            assert!(a == a);
+                            assert!(!(a != a));
+                        }
+                    }
+                }
+            }
+        }
+    };
+}