[PATCH][match-and-simplify] Fix ICE with updating EH info

[Richard Biener]

Wasn't done properly.

Committed.

Richard.

2014-08-06  Richard Biener  <rguent...@suse.de>

        * tree-ssa-forwprop.c (pass_forwprop::execute): Properly
        clean EH info on folded stmts.

Index: gcc/tree-ssa-forwprop.c
===================================================================
--- gcc/tree-ssa-forwprop.c     (revision 213651)
+++ gcc/tree-ssa-forwprop.c     (working copy)
@@ -3663,11 +3663,12 @@ pass_forwprop::execute (function *fun)
           !gsi_end_p (gsi); gsi_next (&gsi))
        {
          gimple stmt = gsi_stmt (gsi);
+         gimple orig_stmt = stmt;
 
          if (fold_stmt (&gsi, fwprop_ssa_val))
            {
              stmt = gsi_stmt (gsi);
-             if (maybe_clean_or_replace_eh_stmt (stmt, stmt)
+             if (maybe_clean_or_replace_eh_stmt (orig_stmt, stmt)
                  && gimple_purge_dead_eh_edges (bb))
                cfg_changed = true;
              update_stmt (stmt);