1 files changed, 24 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/uninit-pr20644-O0.c b/gcc/testsuite/gcc.dg/uninit-pr20644-O0.c
new file mode 100644
index 000000000..092d41164
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/uninit-pr20644-O0.c
@@ -0,0 +1,24 @@
+/* PR 20644 */
+/* { dg-do compile } */
+/* { dg-options "-O0 -Wuninitialized" } */
+int foo ()
+{
+  int i = 0;
+  int j;
+
+  if (1 == i)
+    return j; /* { dg-bogus "uninitialized" "uninitialized" { xfail *-*-* } 10 } */
+
+  return 0;
+}
+
+int bar ()
+{
+  int i = 1;
+  int j; 
+
+  if (1 == i)
+    return j; /* { dg-warning "uninitialized" "uninitialized" { target *-*-* } 21 } */
+
+  return 0;
+}