gcc/testsuite/gcc.dg/tree-ssa/loop-11.c

   1 /* A test for final value replacement and higher-order ivs,
   2    see PR 22442.  */
   3
   4 /* { dg-do compile } */
   5 /* { dg-options "-O1 -fdump-tree-optimized" } */
   6
   7 void bar (unsigned);
   8
   9 void foo (void)
  10 {
  11   unsigned i, a;
  12
  13   for (i = 0; i < 5; i++)
  14     a = i * i;
  15
  16   bar (a);
  17 }
  18
  19 /* Final value of a gets replaced.  */
  20
  21 /* { dg-final { scan-tree-dump-times "\\(16\\)" 1 "optimized" } } */
  22
  23 /* And the empty loop is removed.  */
  24
  25 /* { dg-final { scan-tree-dump-times "if " 0 "optimized" } } */
  26
  27 /* { dg-final { cleanup-tree-dump "optimized" } } */
  28