view gcc/testsuite/gcc.dg/tree-ssa/ivopt_mult_1.c @ 131:84e7813d76e9

gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents 04ced10e8804
children 1830386684a0
line wrap: on
line source

/* { dg-do compile { target {{ i?86-*-* x86_64-*-* } && lp64 } } } */
/* { dg-options "-O2 -m64 -fdump-tree-ivopts-details" } */

/* The test 'if (p2 > p_limit2)' can be replaced, so iv p2 can be
 * eliminated.  */
long foo(long* p, long* p2, int N1, int N2)
{
  int i = 0;
  long* p_limit = p + N1;
  long* p_limit2 = p2 + N2;
  long s = 0;
  while (p  <= p_limit)
    {
      p++;
      p2++;
      if (p2 > p_limit2)
        break;
      s += (*p);
    }
  return s;
}

/* { dg-final { scan-tree-dump-times "Replacing" 1 "ivopts" { xfail *-*-* } } } */