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/* { dg-do compile } */

/* { dg-options "-O2 -fdump-tree-dom3" } */

struct rtx_def;

typedef struct rtx_def *rtx;

struct rtvec_def;

typedef struct rtvec_def *rtvec;

union tree_node;

typedef union tree_node *tree;

typedef struct mem_attrs

{

  long alias;

}

mem_attrs;

union rtunion_def

{

  mem_attrs *rtmem;

};

typedef union rtunion_def rtunion;

struct rtx_def

{

  int code;

  rtunion fld[1];

};

struct tree_decl

{

  rtx rtl;

};

union tree_node

{

  struct tree_decl decl;

};

long

get_alias_set (t,z)

     tree t;

     rtx z;

{

  if (t->decl.rtl && (((t->decl.rtl ? z

                        : (make_decl_rtl (t, 0), t->decl.rtl)))->code))

    return (((((t->decl.rtl ? z : (make_decl_rtl (t, 0), t->decl.rtl)))->

              fld[1]).rtmem) == 0 ? 0 : (((((

                                               {

                                               t;}

                                            )->decl.

                                            rtl ? z : (make_decl_rtl (t, 0),

                                                       t->decl.rtl)))->

                                          fld[1]).rtmem)->alias);

}

/* The calls to make_decl_rtl should be eliminated

/* { dg-final { scan-tree-dump-not "make_decl_rtl \\(\\)" "dom3" } } */

/* There should be three IF conditionals.  */

/* { dg-final { scan-tree-dump-times "if " 3 "dom3"} } */

/* There should be one loads of decl.rtl.  */

/* { dg-final { scan-tree-dump-times "decl\\.rtl" 1 "dom3"} } */

/* There should be one load of code.  */

/* { dg-final { scan-tree-dump-times "code" 1 "dom3"} } */

/* There should be one load of rtmem.  */

/* { dg-final { scan-tree-dump-times "rtmem" 1 "dom3"} } */

/* There should be one load of alias.  */

/* { dg-final { scan-tree-dump-times "->alias" 1 "dom3"} } */

/* { dg-final { cleanup-tree-dump "dom3" } } */