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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
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/* pr39500: autopar fails to parallel */
/* origin: nemokingdom@gmail.com(LiFeng) */
/* { dg-do compile } */
/* { dg-options "-O2 -ftree-parallelize-loops=4 -fdump-tree-parloops2-details" } */

int main (void)
{
  int i;
  int x[1000];

  for (i = 0; i < 101; i++)
    x[i] = x[i+100];

  return x[12];
}

/* This loop cannot be parallelized due to a dependence.  */

/* { dg-final { scan-tree-dump-times "SUCCESS: may be parallelized" 0 "parloops2" } } */