cp-tree.h (build_target_expr): New function.

	* cp-tree.h (build_target_expr): New function.
	* call.c (build_conditional_expr): Use build_target_expr.
	(convert_like): Likewise.
	(build_over_call): Likewise.
	* cvt.c (build_up_reference): Likewise.
	* decl.c (build_cleanup_on_safe_obstack): Fold into ...
	(destroy_local_var): Here.
	(build_target_expr): New function.
	* tree.c (build_cplus_new): Use it.
	(get_target_expr): Likewise.

From-SVN: r29387

gcc/cp/ChangeLog

+1999-09-13  Mark Mitchell  <mark@codesourcery.com>
+
+	* cp-tree.h (build_target_expr): New function.
+	* call.c (build_conditional_expr): Use build_target_expr.
+	(convert_like): Likewise.
+	(build_over_call): Likewise.
+	* cvt.c (build_up_reference): Likewise.
+	* decl.c (build_cleanup_on_safe_obstack): Fold into ...
+	(destroy_local_var): Here.
+	(build_target_expr): New function.
+	* tree.c (build_cplus_new): Use it.
+	(get_target_expr): Likewise.
+
 1999-09-13  Nathan Sidwell  <nathan@acm.org>
 
 	* typeck.c (expr_sizeof): Don't decay arrays and functions.

gcc/cp/call.c

@@ -3080,8 +3080,7 @@ build_conditional_expr (arg1, arg2, arg3)
     {
       tree slot = build (VAR_DECL, result_type);
       layout_decl (slot, 0);
-      result = build (TARGET_EXPR, result_type,
-		      slot, result, NULL_TREE, NULL_TREE);
+      result = build_target_expr (slot, result);
     }
   
   /* If this expression is an rvalue, but might be mistaken for an
@@ -3749,8 +3748,7 @@ convert_like (convs, expr)
 	    tree type = TREE_TYPE (TREE_OPERAND (convs, 0));
 	    tree slot = build_decl (VAR_DECL, NULL_TREE, type);
 	    DECL_ARTIFICIAL (slot) = 1;
-	    expr = build (TARGET_EXPR, type, slot, expr,
-			  NULL_TREE, NULL_TREE);
+	    expr = build_target_expr (slot, expr);
 	    TREE_SIDE_EFFECTS (expr) = 1;
 	  }
 
@@ -4039,7 +4037,7 @@ build_over_call (cand, args, flags)
 	  else if (TYPE_HAS_TRIVIAL_INIT_REF (DECL_CONTEXT (fn)))
 	    {
 	      val = build_decl (VAR_DECL, NULL_TREE, DECL_CONTEXT (fn));
-	      val = build (TARGET_EXPR, DECL_CONTEXT (fn), val, arg, 0, 0);
+	      val = build_target_expr (val, arg);
 	      TREE_SIDE_EFFECTS (val) = 1;
 	      return val;
 	    }

gcc/cp/cp-tree.h

@@ -3247,6 +3247,7 @@ extern tree cp_namespace_decls                  PROTO((tree));
 extern tree create_implicit_typedef             PROTO((tree, tree));
 extern tree maybe_push_decl                     PROTO((tree));
 extern void emit_local_var                      PROTO((tree));
+extern tree build_target_expr                   PROTO((tree, tree));
 
 /* in decl2.c */
 extern void init_decl2				PROTO((void));

gcc/cp/cvt.c

@@ -364,7 +364,7 @@ build_up_reference (type, arg, flags)
     {
       tree slot = build_decl (VAR_DECL, NULL_TREE, argtype);
       DECL_ARTIFICIAL (slot) = 1;
-      arg = build (TARGET_EXPR, argtype, slot, arg, NULL_TREE, NULL_TREE);
+      arg = build_target_expr (slot, arg);
       TREE_SIDE_EFFECTS (arg) = 1;
     }
 

gcc/cp/decl.c

@@ -169,7 +169,6 @@ static void pop_labels PROTO((tree));
 static void maybe_deduce_size_from_array_init PROTO((tree, tree));
 static tree layout_var_decl PROTO((tree, tree));
 static void maybe_commonize_var PROTO((tree));
-static tree build_cleanup_on_safe_obstack PROTO((tree));
 static tree check_initializer PROTO((tree, tree));
 static void make_rtl_for_nonlocal_decl PROTO((tree, tree, const char *));
 static void push_cp_function_context PROTO((struct function *));
@@ -7121,47 +7120,6 @@ layout_var_decl (decl, init)
   return init;
 }
 
-/* Return a cleanup for DECL, created on whatever obstack is
-   appropriate.  */
-
-static tree
-build_cleanup_on_safe_obstack (decl)
-     tree decl;
-{
-  tree cleanup;
-  tree type;
-  int need_pop;
-
-  type = TREE_TYPE (decl);
-
-  /* Only variables get cleaned up.  */
-  if (TREE_CODE (decl) != VAR_DECL)
-    return NULL_TREE;
-  
-  /* And only things with destructors need cleaning up.  */
-  if (!TYPE_NEEDS_DESTRUCTOR (type))
-    return NULL_TREE;
-
-  if (TREE_CODE (decl) == VAR_DECL &&
-      (DECL_EXTERNAL (decl) || TREE_STATIC (decl)))
-    /* We don't clean up things that aren't defined in this
-       translation unit, or that need a static cleanup.  The latter
-       are handled by finish_file.  */
-    return NULL_TREE;
-  
-  /* Switch to an obstack that will live until the point where the
-     cleanup code is actually expanded.  */
-  need_pop = suspend_momentary ();
-
-  /* Compute the cleanup.  */
-  cleanup = maybe_build_cleanup (decl);
-
-  /* Pop back to the obstack we were on before.  */
-  resume_momentary (need_pop);
-  
-  return cleanup;
-}
-
 /* If a local static variable is declared in an inline function, or if
    we have a weak definition, we must endeavor to create only one
    instance of the variable at link-time.  */
@@ -7557,7 +7515,26 @@ void
 destroy_local_var (decl)
      tree decl;
 {
-  tree cleanup = build_cleanup_on_safe_obstack (decl);
+  tree type = TREE_TYPE (decl);
+  tree cleanup;
+
+  /* Only variables get cleaned up.  */
+  if (TREE_CODE (decl) != VAR_DECL)
+    return;
+  
+  /* And only things with destructors need cleaning up.  */
+  if (!TYPE_NEEDS_DESTRUCTOR (type))
+    return;
+
+  if (TREE_CODE (decl) == VAR_DECL &&
+      (DECL_EXTERNAL (decl) || TREE_STATIC (decl)))
+    /* We don't clean up things that aren't defined in this
+       translation unit, or that need a static cleanup.  The latter
+       are handled by finish_file.  */
+    return;
+  
+  /* Compute the cleanup.  */
+  cleanup = maybe_build_cleanup (decl);
 
   /* Record the cleanup required for this declaration.  */
   if (DECL_SIZE (decl) && TREE_TYPE (decl) != error_mark_node
@@ -14143,6 +14120,17 @@ maybe_build_cleanup_1 (decl, auto_delete)
   return 0;
 }
 
+/* Build a TARGET_EXPR, initializing the DECL with the VALUE.  */
+
+tree
+build_target_expr (decl, value)
+     tree decl;
+     tree value;
+{
+  return build (TARGET_EXPR, TREE_TYPE (decl), decl, value, 
+		maybe_build_cleanup (decl), NULL_TREE);
+}
+
 /* If DECL is of a type which needs a cleanup, build that cleanup
    here.  The cleanup does free the storage with a call to delete.  */
 

gcc/cp/tree.c

@@ -251,7 +251,7 @@ build_cplus_new (type, init)
     = (TREE_CODE (fn) == ADDR_EXPR
        && TREE_CODE (TREE_OPERAND (fn, 0)) == FUNCTION_DECL
        && DECL_CONSTRUCTOR_P (TREE_OPERAND (fn, 0)));
-  rval = build (TARGET_EXPR, type, slot, rval, NULL_TREE, NULL_TREE);
+  rval = build_target_expr (slot, rval);
   TREE_SIDE_EFFECTS (rval) = 1;
 
   return rval;
@@ -269,8 +269,7 @@ get_target_expr (init)
   slot = build (VAR_DECL, TREE_TYPE (init));
   DECL_ARTIFICIAL (slot) = 1;
   layout_decl (slot, 0);
-  rval = build (TARGET_EXPR, TREE_TYPE (init), slot, init,
-		NULL_TREE, NULL_TREE);
+  rval = build_target_expr (slot, init);
   TREE_SIDE_EFFECTS (rval) = 1;
 
   return rval;