Allow isize/usize in simd_cast

1 files changed, 21 insertions, 0 deletions

diff --git a/src/test/ui/simd/intrinsic/generic-cast-pointer-width.rs b/src/test/ui/simd/intrinsic/generic-cast-pointer-width.rs
new file mode 100644
index 00000000000..b9382310deb
--- /dev/null
+++ b/src/test/ui/simd/intrinsic/generic-cast-pointer-width.rs
@@ -0,0 +1,21 @@
+// run-pass
+#![feature(repr_simd, platform_intrinsics)]
+
+extern "platform-intrinsic" {
+    fn simd_cast<T, U>(x: T) -> U;
+}
+
+#[derive(Copy, Clone)]
+#[repr(simd)]
+struct V<T>([T; 4]);
+
+fn main() {
+    let u = V::<usize>([0, 1, 2, 3]);
+    let uu32: V<u32> = unsafe { simd_cast(u) };
+    let ui64: V<i64> = unsafe { simd_cast(u) };
+
+    for (u, (uu32, ui64)) in u.0.iter().zip(uu32.0.iter().zip(ui64.0.iter())) {
+        assert_eq!(*u as u32, *uu32);
+        assert_eq!(*u as i64, *ui64);
+    }
+}