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[pf3gnuchains/gcc-fork.git] / gcc / tree-iterator.c

diff --git a/gcc/tree-iterator.c b/gcc/tree-iterator.c
index 53495eb..43218f6 100644 (file)
--- a/gcc/tree-iterator.c
+++ b/gcc/tree-iterator.c
@@ -238,64 +238,6 @@ tsi_delink (tree_stmt_iterator *i)
   i->ptr = next;
 }
 
-/* Move all statements in the statement list after I to a new
-   statement list.  I itself is unchanged.  */
-
-tree
-tsi_split_statement_list_after (const tree_stmt_iterator *i)
-{
-  struct tree_statement_list_node *cur, *next;
-  tree old_sl, new_sl;
-
-  cur = i->ptr;
-  /* How can we possibly split after the end, or before the beginning?  */
-  gcc_assert (cur);
-  next = cur->next;
-
-  old_sl = i->container;
-  new_sl = alloc_stmt_list ();
-  TREE_SIDE_EFFECTS (new_sl) = 1;
-
-  STATEMENT_LIST_HEAD (new_sl) = next;
-  STATEMENT_LIST_TAIL (new_sl) = STATEMENT_LIST_TAIL (old_sl);
-  STATEMENT_LIST_TAIL (old_sl) = cur;
-  cur->next = NULL;
-  next->prev = NULL;
-
-  return new_sl;
-}
-
-/* Move all statements in the statement list before I to a new
-   statement list.  I is set to the head of the new list.  */
-
-tree
-tsi_split_statement_list_before (tree_stmt_iterator *i)
-{
-  struct tree_statement_list_node *cur, *prev;
-  tree old_sl, new_sl;
-
-  cur = i->ptr;
-  /* How can we possibly split after the end, or before the beginning?  */
-  gcc_assert (cur);
-  prev = cur->prev;
-
-  old_sl = i->container;
-  new_sl = alloc_stmt_list ();
-  TREE_SIDE_EFFECTS (new_sl) = 1;
-  i->container = new_sl;
-
-  STATEMENT_LIST_HEAD (new_sl) = cur;
-  STATEMENT_LIST_TAIL (new_sl) = STATEMENT_LIST_TAIL (old_sl);
-  STATEMENT_LIST_TAIL (old_sl) = prev;
-  cur->prev = NULL;
-  if (prev)
-    prev->next = NULL;
-  else
-    STATEMENT_LIST_HEAD (old_sl) = NULL;
-
-  return new_sl;
-}
-
 /* Return the first expression in a sequence of COMPOUND_EXPRs,
    or in a STATEMENT_LIST.  */
 
@@ -320,19 +262,6 @@ expr_first (tree expr)
 /* Return the last expression in a sequence of COMPOUND_EXPRs,
    or in a STATEMENT_LIST.  */
 
-#define EXPR_LAST_BODY do { \
-  if (expr == NULL_TREE) \
-    return expr;\
-  if (TREE_CODE (expr) == STATEMENT_LIST) \
-    { \
-      struct tree_statement_list_node *n = STATEMENT_LIST_TAIL (expr); \
-      return n ? n->stmt : NULL_TREE; \
-    } \
-  while (TREE_CODE (expr) == COMPOUND_EXPR) \
-    expr = TREE_OPERAND (expr, 1); \
-  return expr; \
-} while (0)
-
 tree
 expr_last (tree expr)
 {
@@ -351,29 +280,4 @@ expr_last (tree expr)
   return expr;
 }
 
-/* If EXPR is a single statement return it.  If EXPR is a
-   STATEMENT_LIST containing exactly one statement S, return S.
-   Otherwise, return NULL.  */
-
-tree 
-expr_only (tree expr)
-{
-  if (expr == NULL_TREE)
-    return NULL_TREE;
-
-  if (TREE_CODE (expr) == STATEMENT_LIST)
-    {
-      struct tree_statement_list_node *n = STATEMENT_LIST_TAIL (expr);
-      if (n && STATEMENT_LIST_HEAD (expr) == n)
-       return n->stmt;
-      else
-       return NULL_TREE;
-    }
-
-  if (TREE_CODE (expr) == COMPOUND_EXPR)
-    return NULL_TREE;
-
-  return expr;
-}
-
 #include "gt-tree-iterator.h"