gcc/testsuite/gcc.dg/sms-8.c

   1 /*  This test is a reduced test case for a bug that caused
   2     bootstrapping with -fmodulo-sched.  Related to a broken anti-dep
   3     that was not fixed by reg-moves.  */
   4
   5  /* { dg-do run } */
   6  /* { dg-options "-O2 -fmodulo-sched -fmodulo-sched-allow-regmoves -fdump-rtl-sms --param sms-min-sc=1" } */
   7  /* { dg-options "-O2 -fmodulo-sched -fmodulo-sched-allow-regmoves -fdump-rtl-sms" { target powerpc*-*-* } } */
   8
   9 extern void abort (void);
  10
  11 __attribute__ ((noinline))
  12 unsigned long long
  13 foo (long long ixi, unsigned ctr)
  14 {
  15   unsigned long long irslt = 1;
  16   long long ix = ixi;
  17
  18   for (; ctr; ctr--)
  19     {
  20       irslt *= ix;
  21       ix *= ix;
  22     }
  23
  24   if (irslt != 14348907)
  25     abort ();
  26   return irslt;
  27 }
  28
  29
  30 int
  31 main ()
  32 {
  33   unsigned long long res;
  34
  35   res = foo (3, 4);
  36   return 0;
  37 }
  38
  39 /* { dg-final { scan-rtl-dump-times "SMS succeeded" 0 "sms" { target powerpc*-*-* } } } */
  40 /* { dg-final { cleanup-rtl-dump "sms" } } */
  41
  42