From 218caa410aa38c29984be31a5229b9fa717560ee Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 14:19:13 +0200
Subject: Merging upstream version 1.68.2+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 tests/ui/nll/issue-63154-normalize.rs | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 tests/ui/nll/issue-63154-normalize.rs

(limited to 'tests/ui/nll/issue-63154-normalize.rs')

diff --git a/tests/ui/nll/issue-63154-normalize.rs b/tests/ui/nll/issue-63154-normalize.rs
new file mode 100644
index 000000000..484c12879
--- /dev/null
+++ b/tests/ui/nll/issue-63154-normalize.rs
@@ -0,0 +1,34 @@
+// Regression test for rust-lang/rust#63154
+//
+// Before, we would ICE after failing to normalize the destination type
+// when checking call destinations and also when checking MIR
+// assignment statements.
+
+// check-pass
+
+trait HasAssocType {
+    type Inner;
+}
+
+impl HasAssocType for () {
+    type Inner = ();
+}
+
+trait Tr<I, T>: Fn(I) -> Option<T> {}
+impl<I, T, Q: Fn(I) -> Option<T>> Tr<I, T> for Q {}
+
+fn f<T: HasAssocType>() -> impl Tr<T, T::Inner> {
+    |_| None
+}
+
+fn g<T, Y>(f: impl Tr<T, Y>) -> impl Tr<T, Y> {
+    f
+}
+
+fn h() {
+    g(f())(());
+}
+
+fn main() {
+    h();
+}
-- 
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