DRB031-truedepfirstdimension-orig-yes.c

/*
Copyright (c) 2017, Lawrence Livermore National Security, LLC.
Produced at the Lawrence Livermore National Laboratory
Written by Chunhua Liao, Pei-Hung Lin, Joshua Asplund,
Markus Schordan, and Ian Karlin
(email: liao6@llnl.gov, lin32@llnl.gov, asplund1@llnl.gov,
schordan1@llnl.gov, karlin1@llnl.gov)
LLNL-CODE-732144
All rights reserved.

This file is part of DataRaceBench. For details, see
https://github.com/LLNL/dataracebench. Please also see the LICENSE file
for our additional BSD notice.

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  may be used to endorse or promote products derived from this
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*/

/* 
There is a loop-carried true dependence within the outer level loop.
Data race pair: b[i][j]@66:7 vs. b[i-1][j-1]@66:15
 */
#include <stdlib.h>
#include <stdio.h>
int main(int argc, char* argv[])
{
  int i,j;
  int n=1000, m=1000;
  double b[1000][1000];

  for (i=0; i<n; i++)
    for (j=0; j<m; j++)
      b[i][j] = 0.5; 

#pragma omp parallel for private(j)
  for (i=1;i<n;i++)
    for (j=1;j<m;j++)
      b[i][j]=b[i-1][j-1];

  printf("b[500][500]=%f\n", b[500][500]);  
  return 0;
}