re PR tree-optimization/47278 (hidden weak function not handled properly)

2011-03-11  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/47278
	* gcc.dg/torture/pr47278-1.c: New testcase.
	* gcc.dg/torture/pr47278-2.c: Likewise.

From-SVN: r170869

gcc/testsuite/ChangeLog

+2011-03-11  Richard Guenther  <rguenther@suse.de>
+
+	PR tree-optimization/47278
+	* gcc.dg/torture/pr47278-1.c: New testcase.
+	* gcc.dg/torture/pr47278-2.c: Likewise.
+
 2011-03-11  Jakub Jelinek  <jakub@redhat.com>
 
 	PR tree-optimization/48063

gcc/testsuite/gcc.dg/torture/pr47278-1.c

+/* { dg-do run } */
+/* { dg-require-visibility "" } */
+/* { dg-additional-sources "pr47278-2.c" } */
+
+int foo (void) { return 1; }

gcc/testsuite/gcc.dg/torture/pr47278-2.c

+/* { dg-require-visibility "" } */
+
+extern void abort (void);
+
+int __attribute__((weak,visibility("hidden"))) foo (void)
+{
+  return 0;
+}
+
+int main()
+{
+  if (foo() != 1)
+    abort ();
+  return 0;
+}