Fix assertion failure in -Wuninitialized involving no-op casts. Fixes PR 10577.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136939 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 11 insertions, 0 deletions

diff --git a/test/SemaCXX/uninit-variables.cpp b/test/SemaCXX/uninit-variables.cpp
index a850a2f92f..6c5d0068a4 100644
--- a/test/SemaCXX/uninit-variables.cpp
+++ b/test/SemaCXX/uninit-variables.cpp
@@ -118,4 +118,15 @@ void RDar9251392() {
   }
 }
 
+// Test handling of "no-op" casts.
+void test_noop_cast()
+{
+    int x = 1;
+    int y = (int&)x; // no-warning
+}
+
+void test_noop_cast2() {
+    int x; // expected-note {{declared here}} expected-note {{add initialization}}
+    int y = (int&)x; // expected-warning {{uninitialized when used here}}
+}