gcc/testsuite/gcc.dg/tree-ssa/foldstring-1.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O1 -fdump-tree-gimple" } */
   3
   4 void blah (void);
   5
   6 void
   7 arf ()
   8 {
   9   if (""[0] == 0)
  10     blah ();
  11 }
  12 /* { dg-final { scan-tree-dump-times "= 0;" 1 "gimple"} } */