support/regression/tests/gcc-torture-execute-20000801-1.c


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/*
   20000801-1.c from the execute part of the gcc torture tests.
 */

#include <testfwk.h>

#ifdef __SDCC
#pragma std_c99
#endif

void
foo (char *bp, unsigned n)
{
  register char c;
  register char *ep = bp + n;
  register char *sp;

  while (bp < ep)
    {
      sp = bp + 3;
      c = *sp;
      *sp = *bp;
      *bp++ = c;
      sp = bp + 1;
      c = *sp;
      *sp = *bp;
      *bp++ = c;
      bp += 2;
    }
}

void
testTortureExecute (void)
{
  int one = 1;

  if (sizeof(int) != 4 * sizeof(char))
    return;

  foo ((char *)&one, sizeof(one));
  foo ((char *)&one, sizeof(one));

  if (one != 1)
    ASSERT (0);

  return;
}