gcc/testsuite/gcc.dg/sms-2.c

   1 /* The same test as 921011-1.c.  It can fails on gcc 4.1 due to a dfs
   2    traversal of the loops after versioning.  */
   3
   4 /* { dg-do compile } */
   5 /* { dg-options "-O2 -fmodulo-sched -fdump-rtl-sms" } */
   6
   7 int th, h, em, nlwm, nlwS, nlw, sy;
   8 void
   9 fun (nb)
  10      int nb;
  11 {
  12
  13   while (nb--)
  14     while (h--)
  15       {
  16         nlw = nlwm;
  17         while (nlw)
  18           {
  19             if (nlwS == 1)
  20               {
  21               }
  22             else
  23               if (nlwS == 1)
  24                 {
  25                 }
  26             nlwS--; nlw--;
  27           }
  28         if (em)
  29           nlwS--;
  30         if (++sy == th)
  31           sy = 0;
  32       }
  33 }
  34
  35 /* { dg-final { scan-rtl-dump-times "SMS loop many exits" 1 "sms" { target spu-*-* powerpc*-*-* } } } */
  36 /* { dg-final { cleanup-rtl-dump "sms" } } */