44 lines
1.1 KiB
C
44 lines
1.1 KiB
C
/* { dg-do compile } */
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/* { dg-options "-O1 -fdump-tree-dom2 -fdump-tree-optimized" } */
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extern void abort (void);
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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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};
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struct tree_decl
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{
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long pointer_alias_set;
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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_decl decl;
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};
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long
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blah (decl, set)
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tree decl;
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long set;
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{
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decl->decl.pointer_alias_set = oof();
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if (tree_code_type[decl->common.code] != 'd')
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abort ();
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record_alias_subset (decl->decl.pointer_alias_set);
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if (set != -1)
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set = 0;
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return set;
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}
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/* There should be precisely one reference to pointer_alias_set. If there is
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more than one, then the dominator optimizations failed. */
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/* { dg-final { scan-tree-dump-times "pointer_alias_set" 1 "dom2"} } */
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/* { dg-final { cleanup-tree-dump "dom2" } } */
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/* The assignment set = -1 in the ELSE clause of the last IF
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statement should be removed by the final cleanup phase. */
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/* { dg-final { scan-tree-dump-times "set = -1" 0 "optimized"} } */
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/* { dg-final { cleanup-tree-dump "optimized" } } */
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