PR middle-end/50476 - Warn of pointer set to object whose lifetime is limited

gcc/testsuite/ChangeLog:
	* gcc.dg/uninit-pr50476.c: New test.

From-SVN: r274135

gcc/testsuite/ChangeLog

 2019-08-05  Martin Sebor  <msebor@redhat.com>
 
+	PR middle-end/50476
+	* gcc.dg/uninit-pr50476.c: New test.
+
 	PR c++/60517
 	* g++.dg/pr60517.C: New test.
 

gcc/testsuite/gcc.dg/uninit-pr50476.c

+/* PR middle-end/50476 - Warn of pointer set to object whose lifetime is limited
+   { dg-do compile }
+   { dg-options "-O1 -Wall" } */
+
+int *x = 0;
+
+void f (void)
+{
+  int y = 1;
+  x = &y;
+}
+
+int g (void)
+{
+  f ();
+
+  return *x;    // { dg-warning "\\\[-Wuninitialized" }
+}