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

/* { dg-options "-O -fgcse -fno-split-wide-types" } */

extern void abort(void);

typedef unsigned short int uint16_t;

typedef unsigned int uint32_t;

typedef unsigned long long uint64_t;

typedef struct

{

  uint16_t thread;

  uint16_t phase;

} s32;

typedef union

{

  uint32_t i;

  s32 s;

} u32;

typedef union

{

  uint64_t i;

  u32 u;

} u64;

static __attribute__((noinline))

void foo(int val)

{

  u64 data;

  uint32_t thread;

  data.u.i = 0x10000L;

  thread = data.u.s.thread;

  if (val)

    abort ();

  if (thread)

    abort ();

}

int main(void)

{

  foo (0);

  return 0;

}