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-rw-r--r--src/test/ui/simd/intrinsic/ptr-cast.rs33
1 files changed, 33 insertions, 0 deletions
diff --git a/src/test/ui/simd/intrinsic/ptr-cast.rs b/src/test/ui/simd/intrinsic/ptr-cast.rs
new file mode 100644
index 000000000..1d13720bc
--- /dev/null
+++ b/src/test/ui/simd/intrinsic/ptr-cast.rs
@@ -0,0 +1,33 @@
+// run-pass
+
+#![feature(repr_simd, platform_intrinsics)]
+
+extern "platform-intrinsic" {
+ fn simd_cast_ptr<T, U>(x: T) -> U;
+ fn simd_expose_addr<T, U>(x: T) -> U;
+ fn simd_from_exposed_addr<T, U>(x: T) -> U;
+}
+
+#[derive(Copy, Clone)]
+#[repr(simd)]
+struct V<T>([T; 2]);
+
+fn main() {
+ unsafe {
+ let mut foo = 4i8;
+ let ptr = &mut foo as *mut i8;
+
+ let ptrs = V::<*mut i8>([ptr, core::ptr::null_mut()]);
+
+ // change constness and type
+ let const_ptrs: V<*const u8> = simd_cast_ptr(ptrs);
+
+ let exposed_addr: V<usize> = simd_expose_addr(const_ptrs);
+
+ let from_exposed_addr: V<*mut i8> = simd_from_exposed_addr(exposed_addr);
+
+ assert!(const_ptrs.0 == [ptr as *const u8, core::ptr::null()]);
+ assert!(exposed_addr.0 == [ptr as usize, 0]);
+ assert!(from_exposed_addr.0 == ptrs.0);
+ }
+}