gcc/testsuite/gcc.dg/tree-ssa/pr69270-3.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-uncprop-details -w" } */
   3
   4 /* We're looking for a constant argument a PHI node.  There
   5    should only be one if we unpropagate correctly.  */
   6 /* { dg-final { scan-tree-dump-times ", 1" 1 "uncprop1"} } */
   7
   8 typedef long unsigned int size_t;
   9 typedef union gimple_statement_d *gimple;
  10 unsigned char
  11 propagate_with_phi ()
  12 {
  13   gimple use_stmt;
  14   unsigned char phi_inserted;
  15   phi_inserted = 0;
  16   for (; !end_imm_use_stmt_p (); next_imm_use_stmt ())
  17     {
  18       if (!(arf () == 10 && boo () == 20))
  19         continue;
  20       if (!phi_inserted)
  21         phi_inserted = 1;
  22       else
  23         update_stmt ();
  24     }
  25 }
  26