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