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[tree-ssa] Fix execute/920929-1.c on x86-64 [patch]
- From: Diego Novillo <dnovillo at redhat dot com>
- To: gcc-patches at gcc dot gnu dot org
- Date: Sat, 5 Apr 2003 18:04:26 -0500
- Subject: [tree-ssa] Fix execute/920929-1.c on x86-64 [patch]
- Organization: Red Hat Canada
This bug was exposed by the new SSA->normal pass. When copy
decls for inlining, the call to copy_node is also copying tree
annotations. This was confusing the unSSA pass into thinking
that a variable in an inlined function to be marked as already
processed and shoved into the partition for a completely
different variable.
It never makes sense to copy annotations. They should always be
unique.
Bootstrapped and tested x86, ppc and x86-64.
Diego.
* tree.c (copy_node): Never copy tree annotations.
Index: tree.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/tree.c,v
retrieving revision 1.263.2.26
diff -d -u -p -r1.263.2.26 tree.c
--- tree.c 1 Apr 2003 01:09:14 -0000 1.263.2.26
+++ tree.c 5 Apr 2003 20:14:02 -0000
@@ -397,6 +397,7 @@ copy_node (node)
TREE_CHAIN (t) = 0;
TREE_ASM_WRITTEN (t) = 0;
TREE_VISITED (t) = 0;
+ t->common.ann = 0;
if (TREE_CODE_CLASS (code) == 'd')
DECL_UID (t) = next_decl_uid++;