Clarify comment.

From-SVN: r39320

diff --git a/gcc/cp/optimize.c b/gcc/cp/optimize.c
index 7a7a27c5b02a4bb8939ade9123e7273509f19831..16d3a4798d694b37c03ede4e60cebab71cf8d06c 100644 (file)
--- a/gcc/cp/optimize.c
+++ b/gcc/cp/optimize.c
@@ -343,8 +343,8 @@ copy_body_r (tp, walk_subtrees, data)
               && nonstatic_local_decl_p (TREE_OPERAND (*tp, 0))
               && DECL_CONTEXT (TREE_OPERAND (*tp, 0)) == fn)
        {
-         /* Assignments like a = a; don't generate any rtl code
-            and don't count as variable modification.  Avoid
+         /* Some assignments VAR = VAR; don't generate any rtl code
+            and thus don't count as variable modification.  Avoid
             keeping bogosities like 0 = 0.  */
          tree decl = TREE_OPERAND (*tp, 0), value;
          splay_tree_node n;