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/* { dg-do run { target ilp32 } } */

/* { dg-options "-O2 -mpreferred-stack-boundary=2 -march=i686 -frename-registers" } */

extern void abort (void) __attribute__((noreturn));

struct wrapper {

union setconflict

{

  short a[20];

  int b[10];

} a;

};

int

main ()

{

  int sum = 0;

  {

    struct wrapper a;

    short *c;

    c = a.a.a;

    asm ("": "=r" (c):"0" (c));

    *c = 0;

    asm ("": "=r" (c):"0" (c));

    sum += *c;

  }

  {

    struct wrapper a;

    int *c;

    c = a.a.b;

    asm ("": "=r" (c):"0" (c));

    *c = 1;

    asm ("": "=r" (c):"0" (c));

    sum += *c;

  }

  if (sum != 1)

    abort();

  return 0;

}