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/* { dg-do compile } */
/* { dg-options "-O1 -fdump-tree-dom2" } */
union tree_node;
typedef union tree_node *tree;
extern const char tree_code_type[];
struct tree_common
{
int code;
tree type;
};
struct tree_exp
{
tree operands[1];
};
union tree_node
{
struct tree_common common;
struct tree_exp exp;
};
long
get_alias_set (t)
tree t;
{
if (tree_code_type[t->common.code] != 't' && t->common.type == 0)
return 0;
if (tree_code_type[t->common.code] != 't')
{
while (t->exp.operands[0])
t = t->exp.operands[0];
}
}
/* There should be exactly three IF conditionals if we thread jumps
properly. */
/* { dg-final { scan-tree-dump-times "if " 3 "dom2"} } */
/* { dg-final { cleanup-tree-dump "dom2" } } */
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