3 files changed, 17 insertions, 1 deletions
diff --git a/src/test/ui/consts/issue-83182.32bit.stderr b/src/test/ui/consts/issue-83182.32bit.stderr
new file mode 100644
index 00000000000..3352f0e1724
--- /dev/null
+++ b/src/test/ui/consts/issue-83182.32bit.stderr
@@ -0,0 +1,14 @@
+error[E0080]: it is undefined behavior to use this value
+  --> $DIR/issue-83182.rs:5:1
+   |
+LL | const MYSTR_NO_INIT: &MyStr = unsafe { mem::transmute::<&[_], _>(&[&()]) };
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ type validation failed: encountered a pointer in `str` at .<deref>.0
+   |
+   = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior.
+   = note: the raw bytes of the constant (size: 8, align: 4) {
+               ╾─alloc3──╼ 01 00 00 00                         │ ╾──╼....
+           }
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0080`.
diff --git a/src/test/ui/consts/issue-83182.stderr b/src/test/ui/consts/issue-83182.64bit.stderr
index f7ee6a21ab2..b7570720748 100644
--- a/src/test/ui/consts/issue-83182.stderr
+++ b/src/test/ui/consts/issue-83182.64bit.stderr
@@ -1,5 +1,5 @@
 error[E0080]: it is undefined behavior to use this value
-  --> $DIR/issue-83182.rs:3:1
+  --> $DIR/issue-83182.rs:5:1
    |
 LL | const MYSTR_NO_INIT: &MyStr = unsafe { mem::transmute::<&[_], _>(&[&()]) };
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ type validation failed: encountered a pointer in `str` at .<deref>.0
diff --git a/src/test/ui/consts/issue-83182.rs b/src/test/ui/consts/issue-83182.rs
index 13c6e94f101..55a0722e5dd 100644
--- a/src/test/ui/consts/issue-83182.rs
+++ b/src/test/ui/consts/issue-83182.rs
@@ -1,3 +1,5 @@
+// stderr-per-bitwidth
+
 use std::mem;
 struct MyStr(str);
 const MYSTR_NO_INIT: &MyStr = unsafe { mem::transmute::<&[_], _>(&[&()]) };