gcc/testsuite/gcc.dg/tree-ssa/pr18133-2.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O1 -fdump-tree-optimized-blocks" } */
   3
   4 int c, d;
   5
   6 int
   7 bar (int a)
   8 {
   9   void *p;
  10   int b;
  11
  12   if (a!=0)
  13     {
  14       b = 3;
  15       p = &&L0;
  16     }
  17   else
  18     {
  19       b = 5;
  20       p = &&L1;
  21     }
  22
  23   goto *p;
  24
  25  L0:
  26   c = b;
  27   return 1;
  28
  29  L1:
  30   d = b;
  31   return 0;
  32 }
  33
  34 /* The both paths to the block containing the goto *p should
  35    have been threaded, thus eliminating the need for the goto *p.  */
  36
  37 /* { dg-final { scan-tree-dump-times "goto p" 0 "optimized" } } */
  38
  39 /* There should not be any abnormal edges as DOM removed the
  40    computed goto.  */
  41
  42 /* { dg-final { scan-tree-dump-times "ab" 0 "optimized" } } */
  43 /* { dg-final { cleanup-tree-dump "optimized" } } */