* gcc.c-torture/execute/alias-4.c: New testcase.

From-SVN: r232411

gcc/testsuite/ChangeLog

 2016-01-15  Jan Hubicka <hubicka@ucw.cz>
 
+	* gcc.c-torture/execute/alias-4.c: New testcase.
+
+2016-01-15  Jan Hubicka <hubicka@ucw.cz>
+
 	PR ipa/68148
 	* g++.dg/ipa/devirt-49.C: New testcase.
 

gcc/testsuite/gcc.c-torture/execute/alias-4.c

+/* { dg-require-alias "" } */
+int a = 1;
+extern int b __attribute__ ((alias ("a")));
+int c = 1;
+extern int d __attribute__ ((alias ("c")));
+main (int argc)
+{
+  int *p;
+  int *q;
+  if (argc)
+    p = &a, q = &b;
+  else
+    p = &c, q = &d;
+  *p = 1;
+  *q = 2;
+  if (*p == 1)
+    __builtin_abort ();
+  return 0;
+}