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/* { dg-do compile } */

/* { dg-options "-O1 -fdump-tree-optimized -fdump-tree-esra-details" } */

typedef struct teststruct

{

  double d;

  int i1;

  char c1;

  float z;

  char c2;

  int i2;

} teststruct;

void cow (int i)

{

  teststruct a, b, c, d;

  a.d = 3.2;

  a.i1 = i;

  b = a;

  c = b;

  d = c;

  if (d.i1 != i)

    link_error ();

}

/* Suaccesses of b and c should have been created.  */

/* { dg-final { scan-tree-dump "expr = b.d"  "esra"} } */

/* { dg-final { scan-tree-dump "expr = b.i1"  "esra"} } */

/* { dg-final { scan-tree-dump "expr = c.d"  "esra"} } */

/* { dg-final { scan-tree-dump "expr = c.i1"  "esra"} } */

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

/* There should be no reference to link_error.  */

/* { dg-final { scan-tree-dump-times "link_error" 0 "optimized"} } */

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