[PATCH] Fix PR83439

[Richard Biener]

Goofed up a backport to the GCC 7 branch.

Bootstrap & regtest in progress.

Richard.

2017-12-15  Richard Biener  <rguent...@suse.de>

        PR bootstrap/83439
        * tree-ssa-pre.c (eliminate_dom_walker::before_dom_children):
        Adjust remaining gimple_set_modified to use the modified
        variable instead.

Index: gcc/tree-ssa-pre.c
===================================================================
--- gcc/tree-ssa-pre.c  (revision 255701)
+++ gcc/tree-ssa-pre.c  (working copy)
@@ -4673,7 +4673,7 @@ eliminate_dom_walker::before_dom_childre
                          == void_type_node))
                    gimple_call_set_fntype (call_stmt, TREE_TYPE (fn));
                  maybe_remove_unused_call_args (cfun, call_stmt);
-                 gimple_set_modified (stmt, true);
+                 modified = true;
                }
            }
        }