cp-tree.h (cp_build_function_call_nary): Declare.

	* cp-tree.h (cp_build_function_call_nary): Declare.
	* typeck.c (cp_build_function_call_nary): Define.
	* decl.c (register_dtor_fn): Use it instead of
	cp_build_function_call.
	(cxx_maybe_build_cleanup): Likewise.
	* decl2.c (generate_ctor_or_dtor_function): Likewise.
	* except.c (do_get_exception_ptr): Likewise.
	(do_begin_catch): Likewise.
	(do_allocate_exception): Likewise.
	(do_free_exception): Likewise.
	(build_throw): Likewise.  Use cp_build_function_call_vec instead
	of cp_build_function_call.
	(do_end_catch): Likewise.

From-SVN: r160045

gcc/cp/ChangeLog

 2010-05-29  Nathan Froyd  <froydnj@codesourcery.com>
 
+	* cp-tree.h (cp_build_function_call_nary): Declare.
+	* typeck.c (cp_build_function_call_nary): Define.
+	* decl.c (register_dtor_fn): Use it instead of
+	cp_build_function_call.
+	(cxx_maybe_build_cleanup): Likewise.
+	* decl2.c (generate_ctor_or_dtor_function): Likewise.
+	* except.c (do_get_exception_ptr): Likewise.
+	(do_begin_catch): Likewise.
+	(do_allocate_exception): Likewise.
+	(do_free_exception): Likewise.
+	(build_throw): Likewise.  Use cp_build_function_call_vec instead
+	of cp_build_function_call.
+	(do_end_catch): Likewise.
+
+2010-05-29  Nathan Froyd  <froydnj@codesourcery.com>
+
 	* cp-tree.h (struct cp_decl_specifier_seq): Move type_location field up.
 	(struct cp_declarator): Move id_loc field up.
 

gcc/cp/cp-tree.h

@@ -5371,6 +5371,8 @@ extern tree cp_build_array_ref			(location_t, tree, tree,
 						 tsubst_flags_t);
 extern tree get_member_function_from_ptrfunc	(tree *, tree);
 extern tree cp_build_function_call              (tree, tree, tsubst_flags_t);
+extern tree cp_build_function_call_nary         (tree, tsubst_flags_t, ...)
+						ATTRIBUTE_SENTINEL;
 extern tree cp_build_function_call_vec		(tree, VEC(tree,gc) **,
 						 tsubst_flags_t);
 extern tree build_x_binary_op			(enum tree_code, tree,

gcc/cp/decl.c

@@ -6240,10 +6240,10 @@ register_dtor_fn (tree decl)
 {
   tree cleanup;
   tree compound_stmt;
-  tree args;
   tree fcall;
   tree type;
   bool use_dtor;
+  tree arg0, arg1 = NULL_TREE, arg2 = NULL_TREE;
 
   type = TREE_TYPE (decl);
   if (TYPE_HAS_TRIVIAL_DESTRUCTOR (type))
@@ -6321,25 +6321,23 @@ register_dtor_fn (tree decl)
 	   in, and, in general, it's cheaper to pass NULL than any
 	   other value.  */
 	addr = null_pointer_node;
-      args = tree_cons (NULL_TREE,
-			cp_build_unary_op (ADDR_EXPR, get_dso_handle_node (), 0,
-                                        tf_warning_or_error),
-			NULL_TREE);
+      arg2 = cp_build_unary_op (ADDR_EXPR, get_dso_handle_node (), 0,
+                                tf_warning_or_error);
       if (targetm.cxx.use_aeabi_atexit ())
 	{
-	  args = tree_cons (NULL_TREE, cleanup, args);
-	  args = tree_cons (NULL_TREE, addr, args);
+	  arg1 = cleanup;
+	  arg0 = addr;
 	}
       else
 	{
-	  args = tree_cons (NULL_TREE, addr, args);
-	  args = tree_cons (NULL_TREE, cleanup, args);
+	  arg1 = addr;
+	  arg0 = cleanup;
 	}
     }
   else
-    args = tree_cons (NULL_TREE, cleanup, NULL_TREE);
-  return cp_build_function_call (get_atexit_node (), args, 
-				 tf_warning_or_error);
+    arg0 = cleanup;
+  return cp_build_function_call_nary (get_atexit_node (), tf_warning_or_error,
+				      arg0, arg1, arg2, NULL_TREE);
 }
 
 /* DECL is a VAR_DECL with static storage duration.  INIT, if present,
@@ -12936,9 +12934,8 @@ cxx_maybe_build_cleanup (tree decl)
       fn = lookup_name (id);
       arg = build_address (decl);
       mark_used (decl);
-      cleanup = cp_build_function_call (fn, build_tree_list (NULL_TREE,
-							     arg),
-					tf_warning_or_error);
+      cleanup = cp_build_function_call_nary (fn, tf_warning_or_error,
+					     arg, NULL_TREE);
     }
   /* Handle ordinary C++ destructors.  */
   type = TREE_TYPE (decl);

gcc/cp/decl2.c

@@ -3275,7 +3275,6 @@ generate_ctor_or_dtor_function (bool constructor_p, int priority,
 				location_t *locus)
 {
   char function_key;
-  tree arguments;
   tree fndecl;
   tree body;
   size_t i;
@@ -3308,17 +3307,18 @@ generate_ctor_or_dtor_function (bool constructor_p, int priority,
       /* Calls to pure or const functions will expand to nothing.  */
       if (! (flags_from_decl_or_type (fndecl) & (ECF_CONST | ECF_PURE)))
 	{
+	  tree call;
+
 	  if (! body)
 	    body = start_objects (function_key, priority);
 
-	  arguments = tree_cons (NULL_TREE,
-				 build_int_cst (NULL_TREE, priority),
-				 NULL_TREE);
-	  arguments = tree_cons (NULL_TREE,
-				 build_int_cst (NULL_TREE, constructor_p),
-				 arguments);
-	  finish_expr_stmt (cp_build_function_call (fndecl, arguments,
-						    tf_warning_or_error));
+	  call = cp_build_function_call_nary (fndecl, tf_warning_or_error,
+					      build_int_cst (NULL_TREE,
+							     constructor_p),
+					      build_int_cst (NULL_TREE,
+							     priority),
+					      NULL_TREE);
+	  finish_expr_stmt (call);
 	}
     }
 

gcc/cp/except.c

@@ -180,9 +180,8 @@ do_get_exception_ptr (void)
       fn = declare_nothrow_library_fn (fn, ptr_type_node, ptr_type_node);
     }
 
-  return cp_build_function_call (fn, tree_cons (NULL_TREE, build_exc_ptr (),
-						NULL_TREE),
-				 tf_warning_or_error);
+  return cp_build_function_call_nary (fn, tf_warning_or_error,
+				      build_exc_ptr (), NULL_TREE);
 }
 
 /* Build up a call to __cxa_begin_catch, to tell the runtime that the
@@ -200,9 +199,8 @@ do_begin_catch (void)
       fn = declare_nothrow_library_fn (fn, ptr_type_node, ptr_type_node);
     }
 
-  return cp_build_function_call (fn, tree_cons (NULL_TREE, build_exc_ptr (),
-						NULL_TREE),
-				 tf_warning_or_error);
+  return cp_build_function_call_nary (fn, tf_warning_or_error,
+				      build_exc_ptr (), NULL_TREE);
 }
 
 /* Returns nonzero if cleaning up an exception of type TYPE (which can be
@@ -240,7 +238,7 @@ do_end_catch (tree type)
       TREE_NOTHROW (fn) = 0;
     }
 
-  cleanup = cp_build_function_call (fn, NULL_TREE, tf_warning_or_error);
+  cleanup = cp_build_function_call_vec (fn, NULL, tf_warning_or_error);
   TREE_NOTHROW (cleanup) = dtor_nothrow (type);
 
   return cleanup;
@@ -565,10 +563,8 @@ do_allocate_exception (tree type)
       fn = declare_nothrow_library_fn (fn, ptr_type_node, size_type_node);
     }
 
-  return cp_build_function_call (fn, 
-				 tree_cons (NULL_TREE, size_in_bytes (type),
-					    NULL_TREE),
-				 tf_warning_or_error);
+  return cp_build_function_call_nary (fn, tf_warning_or_error,
+				      size_in_bytes (type), NULL_TREE);
 }
 
 /* Call __cxa_free_exception from a cleanup.  This is never invoked
@@ -586,8 +582,7 @@ do_free_exception (tree ptr)
       fn = declare_nothrow_library_fn (fn, void_type_node, ptr_type_node);
     }
 
-  return cp_build_function_call (fn, tree_cons (NULL_TREE, ptr, NULL_TREE),
-				 tf_warning_or_error);
+  return cp_build_function_call_nary (fn, tf_warning_or_error, ptr, NULL_TREE);
 }
 
 /* Wrap all cleanups for TARGET_EXPRs in MUST_NOT_THROW_EXPR.
@@ -665,8 +660,8 @@ build_throw (tree exp)
 	  return error_mark_node;
 	}
       fn = OVL_CURRENT (fn);
-      exp = cp_build_function_call (fn, tree_cons (NULL_TREE, exp, NULL_TREE),
-				    tf_warning_or_error);
+      exp = cp_build_function_call_nary (fn, tf_warning_or_error,
+					 exp, NULL_TREE);
     }
   else if (exp)
     {
@@ -797,11 +792,9 @@ build_throw (tree exp)
       else
 	cleanup = build_int_cst (cleanup_type, 0);
 
-      tmp = tree_cons (NULL_TREE, cleanup, NULL_TREE);
-      tmp = tree_cons (NULL_TREE, throw_type, tmp);
-      tmp = tree_cons (NULL_TREE, ptr, tmp);
       /* ??? Indicate that this function call throws throw_type.  */
-      tmp = cp_build_function_call (fn, tmp, tf_warning_or_error);
+      tmp = cp_build_function_call_nary (fn, tf_warning_or_error,
+					 ptr, throw_type, cleanup, NULL_TREE);
 
       /* Tack on the initialization stuff.  */
       exp = build2 (COMPOUND_EXPR, TREE_TYPE (tmp), exp, tmp);
@@ -820,7 +813,7 @@ build_throw (tree exp)
 
       /* ??? Indicate that this function call allows exceptions of the type
 	 of the enclosing catch block (if known).  */
-      exp = cp_build_function_call (fn, NULL_TREE, tf_warning_or_error);
+      exp = cp_build_function_call_vec (fn, NULL, tf_warning_or_error);
     }
 
   exp = build1 (THROW_EXPR, void_type_node, exp);

gcc/cp/typeck.c

@@ -3225,6 +3225,25 @@ cp_build_function_call (tree function, tree params, tsubst_flags_t complain)
   return ret;
 }
 
+/* Build a function call using varargs.  */
+
+tree
+cp_build_function_call_nary (tree function, tsubst_flags_t complain, ...)
+{
+  VEC(tree,gc) *vec;
+  va_list args;
+  tree ret, t;
+
+  vec = make_tree_vector ();
+  va_start (args, complain);
+  for (t = va_arg (args, tree); t != NULL_TREE; t = va_arg (args, tree))
+    VEC_safe_push (tree, gc, vec, t);
+  va_end (args);
+  ret = cp_build_function_call_vec (function, &vec, complain);
+  release_tree_vector (vec);
+  return ret;
+}
+
 /* Build a function call using a vector of arguments.  PARAMS may be
    NULL if there are no parameters.  This changes the contents of
    PARAMS.  */