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[Bug lto/54811] [4.8 regression] tree code 'ï' is not supported in LTO streams
- From: "rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 05 Oct 2012 10:11:25 +0000
- Subject: [Bug lto/54811] [4.8 regression] tree code 'ï' is not supported in LTO streams
- Auto-submitted: auto-generated
- References: <bug-54811-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54811
--- Comment #6 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-10-05 10:11:25 UTC ---
Testing
Index: gcc/tree-ssa-live.c
===================================================================
--- gcc/tree-ssa-live.c (revision 192114)
+++ gcc/tree-ssa-live.c (working copy)
@@ -621,6 +621,11 @@ clear_unused_block_pointer_1 (tree *tp,
if (EXPR_P (*tp) && TREE_BLOCK (*tp)
&& !TREE_USED (TREE_BLOCK (*tp)))
TREE_SET_BLOCK (*tp, NULL);
+ if (TREE_CODE (*tp) == VAR_DECL && DECL_DEBUG_EXPR_IS_FROM (*tp))
+ {
+ tree debug_expr = DECL_DEBUG_EXPR (*tp);
+ walk_tree (&debug_expr, clear_unused_block_pointer_1, NULL, NULL);
+ }
return NULL_TREE;
}