gcc/testsuite/gcc.dg/sms-antideps.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" } */
   7
   8 #include <stdlib.h>
   9
  10 unsigned long long
  11 foo (long long ixi, unsigned ctr)
  12 {
  13   unsigned long long irslt = 1;
  14   long long ix = ixi;
  15
  16   for (; ctr; ctr--)
  17     {
  18       irslt *= ix;
  19       ix *= ix;
  20     }
  21
  22   if (irslt != 14348907)
  23     abort ();
  24   return irslt;
  25 }
  26
  27
  28 int
  29 main ()
  30 {
  31   unsigned long long res;
  32
  33   res = foo (3, 4);
  34   return 0;
  35 }
  36
  37
  38