gcc/testsuite/gcc.dg/tree-ssa/sccp-16.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-cunrolli -fdump-tree-sccp-details" } */
   3
   4 int foo ()
   5 {
   6   const char *s = "Hello World!";
   7   int len = 0;
   8   while (s[len])
   9     ++len;
  10   return len;
  11 }
  12
  13 /* For cunrolli the growth is too large, but it should add a canonical IV
  14    and SCCP peform final value replacement.  */
  15 /* { dg-final { scan-tree-dump "ivtmp\[^\r\n\]*PHI\[^\r\n\]*13" "cunrolli" } } */
  16 /* { dg-final { scan-tree-dump "with expr: 12" "sccp" } } */