* tree-ssa-forwprop.c (forward_propagate_addr_expr): Do not
	propagate an ADDR_EXPR if the definition and use sites are
	in different EH regions.

Index: tree-ssa-forwprop.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/tree-ssa-forwprop.c,v
retrieving revision 2.16
diff -c -p -r2.16 tree-ssa-forwprop.c
*** tree-ssa-forwprop.c	17 May 2005 16:27:46 -0000	2.16
--- tree-ssa-forwprop.c	18 May 2005 16:47:50 -0000
*************** forward_propagate_addr_expr (tree stmt)
*** 537,542 ****
--- 537,547 ----
    if (bb_for_stmt (use_stmt)->loop_depth > stmt_loop_depth)
      return false;
  
+   /* If the two statements belong to different EH regions, then there
+      is nothing we can or should try to do.  */
+   if (lookup_stmt_eh_region (use_stmt) != lookup_stmt_eh_region (stmt))
+     return false;
+ 
    /* Strip away any outer COMPONENT_REF/ARRAY_REF nodes from the LHS.  */
    lhs = TREE_OPERAND (use_stmt, 0);
    while (TREE_CODE (lhs) == COMPONENT_REF || TREE_CODE (lhs) == ARRAY_REF)