diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/20030703-2.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/20030703-2.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/20030703-2.c b/gcc/testsuite/gcc.dg/tree-ssa/20030703-2.c new file mode 100644 index 00000000000..a73150a06a3 --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/20030703-2.c @@ -0,0 +1,41 @@ +/* { dg-do compile } */ +/* { dg-options "-O1 -fdump-tree-dom3" } */ + +union tree_node; +typedef union tree_node *tree; +extern const char tree_code_type[]; + +union tree_node +{ + int code; + long pointer_alias_set; +}; + +long +get_alias_set (t) + tree t; +{ + if (tree_code_type[t->code]) + abort (); + if (t->pointer_alias_set) + { + tree __t = t; + if (tree_code_type[__t->code]) + abort (); + } +} + +/* There should be precisely one load of {t,__t}->code. If there is + more than one, then the dominator optimizations failed. */ +/* { dg-final { scan-tree-dump-times "->code" 1 "dom3"} } */ + +/* There should be precisely one load of tree_code_type. If there is + more than one, then the dominator optimizations failed. */ +/* { dg-final { scan-tree-dump-times "tree_code_type" 1 "dom3"} } */ + +/* There should be one IF conditional. If 'tree_code_type[t->code]' is + zero, then the third if() conditional is unnecessary. That should cause + the call to abort() to be removed, which in turn causes the whole second + if() to disappear. */ +/* { dg-final { scan-tree-dump-times "if " 1 "dom3"} } */ + |