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/* PR rtl-optimization/33552 */

/* { dg-do run } */

/* { dg-options "-O2" } */

extern void abort (void);

void

__attribute__((noinline))

foo (unsigned long *wp, unsigned long *up, long un, unsigned long *vp)

{

  long j;

  unsigned long prod_low, prod_high;

  unsigned long cy_dig;

  unsigned long v_limb;

  v_limb = vp[0];

  cy_dig = 64;

  for (j = un; j > 0; j--)

    {

      unsigned long u_limb, w_limb;

      u_limb = *up++;

      __asm__ (""

               : "=r" (prod_low), "=r" (prod_high)

               : "0" (u_limb), "1" (v_limb));

      __asm__ ("mov %5, %1; add %5, %0"

               : "=r" (cy_dig), "=&r" (w_limb)

               : "0" (prod_high), "rm" (0), "1" (prod_low), "rm" (cy_dig));

      *wp++ = w_limb;

    }

}

int

main (void)

{

  unsigned long wp[4];

  unsigned long up[4] = { 0x1248, 0x248a, 0x1745, 0x1853 };

  unsigned long vp = 0xdead;

  foo (wp, up, 4, &vp);

  if (wp[0] != 0x40 || wp[1] != 0xdeed || wp[2] != 0x1bd9a || wp[3] != 0x29c47)

    abort ();

  return 0;

}