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/* { dg-do link } */

/* { dg-options "--param allow-store-data-races=0" } */

/* { dg-final { simulate-thread } } */

#include <stdio.h>

#include <stdlib.h>

#include "../../gcc.dg/simulate-thread/simulate-thread.h"

struct bits

{

  char a;

  int b:7;

  int c:9;

  unsigned char d;

} *p;

static int global = 0;

void simulate_thread_other_threads()

{

  global++;

  p->d = global % 256;

}

int simulate_thread_step_verify()

{

  if (p->d != global % 256)

    {

      printf("FAIL: invalid intermediate result\n");

      return 1;

    }

  return 0;

}

int simulate_thread_final_verify()

{

  if (p->c != 55)

    {

      printf("FAIL: invalid final result\n");

      return 1;

    }

  return 0;

}

/* Store into <c> should not clobber <d>.  */

/* We should not use a 32-bit move to store into p->, but a smaller move.  */

__attribute__((noinline))

void simulate_thread_main()

{

  p -> c = 55;

}

int main()

{

  p = (struct bits *) calloc (1, sizeof (struct bits));

  simulate_thread_main();

  simulate_thread_done();

  return 0;

}