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/* PR middle-end/33088 */

/* Origin: Joseph S. Myers <jsm28@gcc.gnu.org> */

/* { dg-do run { target i?86-*-linux* x86_64-*-linux* } } */

/* { dg-options "-std=c99 -O -ffloat-store -lm" } */

#include <fenv.h>

#include <stdlib.h>

volatile int x[1024];

void __attribute__((noinline))

fill_stack (void)

{

  volatile int y[1024];

  int i;

  for (i = 0; i < 1024; i++)

    y[i] = 0x7ff00000;

  for (i = 0; i < 1024; i++)

    x[i] = y[i];

}

volatile _Complex double vc;

void __attribute__((noinline))

use_complex (_Complex double c)

{

  vc = c;

}

double t0, t1, t2, t3;

#define USE_COMPLEX(X, R, C) \

  do { __real__ X = R; __imag__ X = C; use_complex (X); } while (0)

void __attribute__((noinline))

use_stack (void)

{

  _Complex double a, b, c, d;

  USE_COMPLEX (a, t0, t1);

  USE_COMPLEX (b, t1, t2);

  USE_COMPLEX (c, t2, t3);

  USE_COMPLEX (d, t3, t0);

}

int

main (void)

{

  fill_stack ();

  feclearexcept (FE_INVALID);

  use_stack ();

  if (fetestexcept (FE_INVALID))

    abort ();

  exit (0);

}