[PATCH] c++: cp_walk_subtrees simplification for *_CAST_EXPR

[Patrick Palka via Gcc-patches]

Let walk_tree_1 do the operand walking for us.

Bootstrap and regtest on x86_64-pc-linux-gnu in progress, does this look
OK for trunk if successful?

gcc/cp/ChangeLog:

        * tree.c (cp_walk_subtrees) <case *_CAST_EXPR>: Simplify.
---
 gcc/cp/tree.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/gcc/cp/tree.c b/gcc/cp/tree.c
index 32ddf835a91..7050a53abc2 100644
--- a/gcc/cp/tree.c
+++ b/gcc/cp/tree.c
@@ -5352,13 +5352,6 @@ cp_walk_subtrees (tree *tp, int *walk_subtrees_p, 
walk_tree_fn func,
     case BIT_CAST_EXPR:
       if (TREE_TYPE (*tp))
        WALK_SUBTREE (TREE_TYPE (*tp));
-
-      {
-        int i;
-        for (i = 0; i < TREE_CODE_LENGTH (TREE_CODE (*tp)); ++i)
-         WALK_SUBTREE (TREE_OPERAND (*tp, i));
-      }
-      *walk_subtrees_p = 0;
       break;
 
     case CONSTRUCTOR:
-- 
2.34.0