From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 14:02:58 +0200
Subject: Adding upstream version 1.64.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 src/test/ui/consts/issue-63952.rs | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 src/test/ui/consts/issue-63952.rs

(limited to 'src/test/ui/consts/issue-63952.rs')

diff --git a/src/test/ui/consts/issue-63952.rs b/src/test/ui/consts/issue-63952.rs
new file mode 100644
index 000000000..5c83e6f45
--- /dev/null
+++ b/src/test/ui/consts/issue-63952.rs
@@ -0,0 +1,27 @@
+// Regression test for #63952, shouldn't hang.
+// stderr-per-bitwidth
+
+#[repr(C)]
+#[derive(Copy, Clone)]
+struct SliceRepr {
+    ptr: *const u8,
+    len: usize,
+}
+
+union SliceTransmute {
+    repr: SliceRepr,
+    slice: &'static [u8],
+}
+
+// bad slice: length too big to even exist anywhere
+const SLICE_WAY_TOO_LONG: &[u8] = unsafe { //~ ERROR: it is undefined behavior to use this value
+    SliceTransmute {
+        repr: SliceRepr {
+            ptr: &42,
+            len: usize::MAX,
+        },
+    }
+    .slice
+};
+
+fn main() {}
-- 
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