--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.dg/uninit-pr19430-O0.c	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,42 @@
+/* { dg-do compile } */
+/* { dg-options "-O0 -Wuninitialized" } */
+extern int bar (int);
+extern void baz (int *);
+
+int
+foo (int i)
+{
+  int j; /* { dg-warning "'j' may be used uninitialized in this function" "uninitialized" { xfail *-*-* } } */
+
+  if (bar (i)) {
+    baz (&j);
+  } else {
+  }
+
+  return j;
+}
+
+int foo2( void ) {
+  int rc;
+  return rc; /* { dg-warning "'rc' is used uninitialized in this function" } */
+  *&rc = 0;
+}
+
+extern int printf(const char *, ...);
+void frob(int *pi);
+
+int main(void)
+{
+  int i; 
+  printf("i = %d\n", i); /* { dg-warning "'i' is used uninitialized in this function" } */
+  frob(&i);
+
+  return 0;
+}
+
+void foo3(int*);
+void bar3(void) { 
+  int x; 
+  if(x) /* { dg-warning "'x' is used uninitialized in this function" } */
+    foo3(&x); 
+}