re PR tree-optimization/56501 (gcc 4.6 ICE on noreturn function at -Os and above)

2013-04-03  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/56501
	* gcc.dg/torture/pr56501.c: New testcase.

From-SVN: r197401

gcc/testsuite/ChangeLog

 2013-04-03  Richard Biener  <rguenther@suse.de>
 
+	PR tree-optimization/56501
+	* gcc.dg/torture/pr56501.c: New testcase.
+
+2013-04-03  Richard Biener  <rguenther@suse.de>
+
 	PR tree-optimization/56407
 	* gcc.dg/torture/pr56407.c: New testcase.
 

gcc/testsuite/gcc.dg/torture/pr56501.c

+/* { dg-do compile } */
+/* { dg-options "-w" } */
+
+int a;
+void try_help () __attribute__ ((__noreturn__));
+void try_help ()
+{
+}
+
+int main ()
+{
+  switch (a)
+    {
+      case '1':
+      case '2':
+      case '3':
+      case '4':
+      case '5':
+      case '6':
+      case '7':
+      case '8':
+      case '9':
+	  break;
+      default:
+	  try_help ();
+    }
+}