From 1ac153f60bb30748a813e27f433c82e483d9a98a Mon Sep 17 00:00:00 2001
From: Ralf Jung <post@ralfj.de>
Date: Mon, 16 Oct 2023 13:52:19 +0200
Subject: [PATCH] add oversized-ref test back

---
 tests/ui/consts/extra-const-ub/detect-extra-ub.rs         | 8 ++++++++
 .../extra-const-ub/detect-extra-ub.with_flag.stderr       | 8 +++++++-
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/tests/ui/consts/extra-const-ub/detect-extra-ub.rs b/tests/ui/consts/extra-const-ub/detect-extra-ub.rs
index 2b2e4f99ead0e..15c069084479e 100644
--- a/tests/ui/consts/extra-const-ub/detect-extra-ub.rs
+++ b/tests/ui/consts/extra-const-ub/detect-extra-ub.rs
@@ -91,4 +91,12 @@ const VALID_ENUM2: Result<&'static [u8], ()> = { let e = Err(()); e };
 // Htting the (non-integer) array code in validation with an immediate local.
 const VALID_ARRAY: [Option<i32>; 0] = { let e = [None; 0]; e };
 
+// Detecting oversized references.
+const OVERSIZED_REF: () = { unsafe {
+    let slice: *const [u8] = transmute((1usize, usize::MAX));
+    let _val = &*slice;
+    //[with_flag]~^ ERROR: evaluation of constant value failed
+    //[with_flag]~| slice is bigger than largest supported object
+} };
+
 fn main() {}
diff --git a/tests/ui/consts/extra-const-ub/detect-extra-ub.with_flag.stderr b/tests/ui/consts/extra-const-ub/detect-extra-ub.with_flag.stderr
index 4ee12d501e880..0100aafb6b7c6 100644
--- a/tests/ui/consts/extra-const-ub/detect-extra-ub.with_flag.stderr
+++ b/tests/ui/consts/extra-const-ub/detect-extra-ub.with_flag.stderr
@@ -52,6 +52,12 @@ LL |     let _val = *(&mem as *const Align as *const [*const u8; 2]);
    = help: this code performed an operation that depends on the underlying bytes representing a pointer
    = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported
 
-error: aborting due to 7 previous errors
+error[E0080]: evaluation of constant value failed
+  --> $DIR/detect-extra-ub.rs:97:16
+   |
+LL |     let _val = &*slice;
+   |                ^^^^^^^ constructing invalid value: encountered invalid reference metadata: slice is bigger than largest supported object
+
+error: aborting due to 8 previous errors
 
 For more information about this error, try `rustc --explain E0080`.