1 files changed, 23 insertions, 0 deletions
diff --git a/gcc/testsuite/rust/compile/issue-1237.rs b/gcc/testsuite/rust/compile/issue-1237.rs
new file mode 100644
index 0000000..542be89
--- /dev/null
+++ b/gcc/testsuite/rust/compile/issue-1237.rs
@@ -0,0 +1,23 @@
+// { dg-additional-options "-w" }
+mod intrinsics {
+    extern "rust-intrinsic" {
+        pub fn offset<T>(ptr: *const T, count: isize) -> *const T;
+    }
+}
+
+impl<T> *const T {
+    pub unsafe fn offset(self, count: isize) -> *const T {
+        unsafe { intrinsics::offset(self, count) }
+    }
+}
+
+impl<T> [T] {
+    pub unsafe fn get_unchecked(&self, index: usize) -> &T {
+        unsafe { &*(self as *const [T] as *const T).offset(index as isize) }
+    }
+}
+
+#[inline]
+unsafe fn u8to64_le(buf: &[u8], start: usize, len: usize) -> u64 {
+    (unsafe { *buf.get_unchecked(start) } as u64)
+}