------- Additional Comments From pinskia at gcc dot gnu dot org 2004-12-01
02:46 -------
The problem is really in fab.
Question is how should modify_stmt work because that is what is causing the
problem.
This patch fix the problem:
Index: tree-ssa-ccp.c
===============================================================
====
RCS file: /cvs/gcc/gcc/gcc/tree-ssa-ccp.c,v
retrieving revision 2.53
diff -u -p -r2.53 tree-ssa-ccp.c
--- tree-ssa-ccp.c 29 Nov 2004 01:15:39 -0000 2.53
+++ tree-ssa-ccp.c 1 Dec 2004 02:45:17 -0000
@@ -2196,7 +2180,7 @@ execute_fold_all_builtins (void)
if (result && !set_rhs (stmtp, result))
abort ();
}
- modify_stmt (*stmtp);
+ mark_new_vars_to_rename (*stmtp, vars_to_rename);
if (maybe_clean_eh_stmt (*stmtp)
&& tree_purge_dead_eh_edges (bb))
cfg_changed = true;
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18746
