sms-antideps.c

来自「用于进行gcc测试」· C语言 代码 · 共 39 行

/*  This test is a reduced test case for a bug that caused
    bootstrapping with -fmodulo-sched.  Related to a broken anti-dep
    that was not fixed by reg-moves.  */

 /* { dg-do run } */
 /* { dg-options "-O2 -fmodulo-sched -fmodulo-sched-allow-regmoves" } */

#include <stdlib.h>

unsigned long long
foo (long long ixi, unsigned ctr)
{
  unsigned long long irslt = 1;
  long long ix = ixi;

  for (; ctr; ctr--)
    {
      irslt *= ix;
      ix *= ix;
    }

  if (irslt != 14348907)
    abort ();
  return irslt;
}


int
main ()
{
  unsigned long long res;

  res = foo (3, 4);
  return 0;
}