gcc/testsuite/gcc.dg/tree-ssa/ivopt_5.c

   1 /* { dg-options "-O2 -fdump-tree-ivopts -fkeep-gc-roots-live" } */
   2
   3 /* Only integer ivopts here when using -fkeep-gc-roots-live.   */
   4
   5 void foo (char *pstart, int n)
   6 {
   7   char *p;
   8   char *pend = pstart + n;
   9
  10   for (p = pstart; p < pend; p++)
  11     *p = 1;
  12 }
  13
  14 void foo1 (char *pstart, int n)
  15 {
  16   char *p;
  17   char *pend = pstart + n;
  18
  19   for (p = pstart; p != pend; p++)
  20     *p = 1;
  21 }
  22
  23 /* { dg-final { scan-tree-dump-times "ivtmp.\[0-9_\]* = PHI <\[^0\]\[^,\]*, \[^0\]" 0 "ivopts"} } */