gcc/testsuite/gcc.dg/tree-ssa/loadpre7.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-pre-stats" } */
   3 /* We can't eliminate the *p load here in any sane way, as eshup8 may
   4    change it.  */
   5
   6 void eshup8 (unsigned short *);
   7
   8 void
   9 enormlz (x)
  10      unsigned short x[];
  11 {
  12   register unsigned short *p;
  13   p = &x[2];
  14   while ((*p & 0xff00) == 0)
  15     {
  16       eshup8 (x);
  17     }
  18 }
  19 /* { dg-final { scan-tree-dump-not "Eliminated:" "pre"} } */