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/* { dg-do compile } */

/* { dg-options "-O -fno-tree-sra -fdump-tree-fre-details -fdump-tree-optimized" } */

#if (__SIZEOF_INT__ == __SIZEOF_FLOAT__)

typedef int intflt;

#elif (__SIZEOF_LONG__ == __SIZEOF_FLOAT__)

typedef long intflt;

#else

#error Add target support here for type that will union float size

#endif

struct X {

  int i;

  union {

    intflt j;

    intflt k;

    float f;

  } u;

};

intflt foo(intflt j)

{

  struct X a;

  a.u.j = j;

  a.u.f = a.u.f;

  a.u.f = a.u.f;

  a.u.j = a.u.j;

  a.u.f = a.u.f;

  return a.u.k;

}

/* { dg-final { scan-tree-dump-times "Inserted pretmp" 1 "fre" } } */

/* { dg-final { scan-tree-dump-times "Replaced a.u.f with pretmp" 3 "fre" } } */

/* { dg-final { scan-tree-dump-times "Replaced a.u.k with j" 1 "fre" } } */

/* { dg-final { scan-tree-dump "= VIEW_CONVERT_EXPR<float>\\\(j_" "fre" } } */

/* { dg-final { scan-tree-dump "return j" "optimized" } } */

/* { dg-final { cleanup-tree-dump "fre" } } */

/* { dg-final { cleanup-tree-dump "optimized" } } */