1 files changed, 106 insertions, 0 deletions
diff --git a/vendor/packed_simd/src/api/ops/vector_shifts.rs b/vendor/packed_simd/src/api/ops/vector_shifts.rs
new file mode 100644
index 000000000..8bb5ac2fc
--- /dev/null
+++ b/vendor/packed_simd/src/api/ops/vector_shifts.rs
@@ -0,0 +1,106 @@
+//! Vertical (lane-wise) vector-vector shifts operations.
+
+macro_rules! impl_ops_vector_shifts {
+    ([$elem_ty:ident; $elem_count:expr]: $id:ident | $test_tt:tt) => {
+        impl crate::ops::Shl<$id> for $id {
+            type Output = Self;
+            #[inline]
+            fn shl(self, other: Self) -> Self {
+                use crate::llvm::simd_shl;
+                unsafe { Simd(simd_shl(self.0, other.0)) }
+            }
+        }
+        impl crate::ops::Shr<$id> for $id {
+            type Output = Self;
+            #[inline]
+            fn shr(self, other: Self) -> Self {
+                use crate::llvm::simd_shr;
+                unsafe { Simd(simd_shr(self.0, other.0)) }
+            }
+        }
+        impl crate::ops::ShlAssign<$id> for $id {
+            #[inline]
+            fn shl_assign(&mut self, other: Self) {
+                *self = *self << other;
+            }
+        }
+        impl crate::ops::ShrAssign<$id> for $id {
+            #[inline]
+            fn shr_assign(&mut self, other: Self) {
+                *self = *self >> other;
+            }
+        }
+        test_if!{
+            $test_tt:
+            paste::item! {
+                pub mod [<$id _ops_vector_shifts>] {
+                    use super::*;
+                    #[cfg_attr(not(target_arch = "wasm32"), test)] #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test)]
+                    #[cfg_attr(any(target_arch = "s390x", target_arch = "sparc64"),
+                               allow(unreachable_code, unused_variables)
+                    )]
+                    #[cfg(not(target_arch = "aarch64"))]
+                    //~^ FIXME: https://github.com/rust-lang/packed_simd/issues/317
+                    fn ops_vector_shifts() {
+                        let z = $id::splat(0 as $elem_ty);
+                        let o = $id::splat(1 as $elem_ty);
+                        let t = $id::splat(2 as $elem_ty);
+                        let f = $id::splat(4 as $elem_ty);
+
+                        let max =$id::splat(
+                            (mem::size_of::<$elem_ty>() * 8 - 1) as $elem_ty
+                        );
+
+                        // shr
+                        assert_eq!(z >> z, z);
+                        assert_eq!(z >> o, z);
+                        assert_eq!(z >> t, z);
+                        assert_eq!(z >> t, z);
+
+                        #[cfg(any(target_arch = "s390x", target_arch = "sparc64"))] {
+                            // FIXME: rust produces bad codegen for shifts:
+                            // https://github.com/rust-lang-nursery/packed_simd/issues/13
+                            return;
+                        }
+
+                        assert_eq!(o >> z, o);
+                        assert_eq!(t >> z, t);
+                        assert_eq!(f >> z, f);
+                        assert_eq!(f >> max, z);
+
+                        assert_eq!(o >> o, z);
+                        assert_eq!(t >> o, o);
+                        assert_eq!(t >> t, z);
+                        assert_eq!(f >> o, t);
+                        assert_eq!(f >> t, o);
+                        assert_eq!(f >> max, z);
+
+                        // shl
+                        assert_eq!(z << z, z);
+                        assert_eq!(o << z, o);
+                        assert_eq!(t << z, t);
+                        assert_eq!(f << z, f);
+                        assert_eq!(f << max, z);
+
+                        assert_eq!(o << o, t);
+                        assert_eq!(o << t, f);
+                        assert_eq!(t << o, f);
+
+                        {
+                            // shr_assign
+                            let mut v = o;
+                            v >>= o;
+                            assert_eq!(v, z);
+                        }
+                        {
+                            // shl_assign
+                            let mut v = o;
+                            v <<= o;
+                            assert_eq!(v, t);
+                        }
+                    }
+                }
+            }
+        }
+    };
+}