liveness: substitute bound regions with free ones before normalizing the return type

Fixes #32323

1 files changed, 18 insertions, 0 deletions

diff --git a/src/test/compile-fail/issue-32323.rs b/src/test/compile-fail/issue-32323.rs
new file mode 100644
index 00000000000..e3461e52e1c
--- /dev/null
+++ b/src/test/compile-fail/issue-32323.rs
@@ -0,0 +1,18 @@
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+pub trait Tr<'a> {
+    type Out;
+}
+
+pub fn f<'a, T: Tr<'a>>() -> <T as Tr<'a>>::Out {}
+//~^ ERROR not all control paths return a value
+
+pub fn main() {}