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

   1 /* { dg-do compile } */
   2 /* { dg-options "-O -fdump-tree-optimized" } */
   3
   4 /* Testcase for PR31657.  */
   5
   6 int foo (int x, int a, int b)
   7 {
   8   /* if ((x & a) || (x & b)) */
   9   if (x & a)
  10     goto doit;
  11   if (x & b)
  12     goto doit;
  13
  14   /* else */
  15   return 0;
  16
  17   /* then - returing 1 causes phiopt to trigger */
  18 doit:
  19   return 2;
  20 }
  21
  22 /* { dg-final { scan-tree-dump "\\|" "optimized" } } */
  23 /* { dg-final { cleanup-tree-dump "optimized" } } */