Index: cp/cp-tree.h
===================================================================
--- cp/cp-tree.h	(revision 261457)
+++ cp/cp-tree.h	(working copy)
@@ -6346,8 +6346,8 @@ extern bool attributes_naming_typedef_ok	(tree);
 extern void cplus_decl_attributes		(tree *, tree, int);
 extern void finish_anon_union			(tree);
 extern void cxx_post_compilation_parsing_cleanups (void);
-extern tree coerce_new_type			(tree);
-extern tree coerce_delete_type			(tree);
+extern tree coerce_new_type			(tree, location_t);
+extern tree coerce_delete_type			(tree, location_t);
 extern void comdat_linkage			(tree);
 extern void determine_visibility		(tree);
 extern void constrain_class_visibility		(tree);
Index: cp/decl.c
===================================================================
--- cp/decl.c	(revision 261457)
+++ cp/decl.c	(working copy)
@@ -13153,11 +13153,11 @@ grok_op_properties (tree decl, bool complain)
 	}
 
       if (op_flags & OVL_OP_FLAG_DELETE)
-	TREE_TYPE (decl) = coerce_delete_type (TREE_TYPE (decl));
+	TREE_TYPE (decl) = coerce_delete_type (TREE_TYPE (decl), loc);
       else
 	{
 	  DECL_IS_OPERATOR_NEW (decl) = 1;
-	  TREE_TYPE (decl) = coerce_new_type (TREE_TYPE (decl));
+	  TREE_TYPE (decl) = coerce_new_type (TREE_TYPE (decl), loc);
 	}
 
       return true;
Index: cp/decl2.c
===================================================================
--- cp/decl2.c	(revision 261457)
+++ cp/decl2.c	(working copy)
@@ -1676,7 +1676,7 @@ finish_anon_union (tree anon_union_decl)
    what compiler will be expecting.  */
 
 tree
-coerce_new_type (tree type)
+coerce_new_type (tree type, location_t loc)
 {
   int e = 0;
   tree args = TYPE_ARG_TYPES (type);
@@ -1686,7 +1686,8 @@ tree
   if (!same_type_p (TREE_TYPE (type), ptr_type_node))
     {
       e = 1;
-      error ("%<operator new%> must return type %qT", ptr_type_node);
+      error_at (loc, "%<operator new%> must return type %qT",
+		ptr_type_node);
     }
 
   if (args && args != void_list_node)
@@ -1697,8 +1698,8 @@ tree
 	     
 	     The first parameter shall not have an associated default
 	     argument.  */
-	  error ("the first parameter of %<operator new%> cannot "
-		 "have a default argument");
+	  error_at (loc, "the first parameter of %<operator new%> cannot "
+		    "have a default argument");
 	  /* Throw away the default argument.  */
 	  TREE_PURPOSE (args) = NULL_TREE;
 	}
@@ -1713,7 +1714,7 @@ tree
     e = 2;
 
   if (e == 2)
-    permerror (input_location, "%<operator new%> takes type %<size_t%> (%qT) "
+    permerror (loc, "%<operator new%> takes type %<size_t%> (%qT) "
 	       "as first parameter", size_type_node);
 
   switch (e)
@@ -1732,7 +1733,7 @@ tree
 }
 
 tree
-coerce_delete_type (tree type)
+coerce_delete_type (tree type, location_t loc)
 {
   int e = 0;
   tree args = TYPE_ARG_TYPES (type);
@@ -1742,7 +1743,8 @@ tree
   if (!same_type_p (TREE_TYPE (type), void_type_node))
     {
       e = 1;
-      error ("%<operator delete%> must return type %qT", void_type_node);
+      error_at (loc, "%<operator delete%> must return type %qT",
+		void_type_node);
     }
 
   if (!args || args == void_list_node
@@ -1751,8 +1753,8 @@ tree
       e = 2;
       if (args && args != void_list_node)
 	args = TREE_CHAIN (args);
-      error ("%<operator delete%> takes type %qT as first parameter",
-	     ptr_type_node);
+      error_at (loc, "%<operator delete%> takes type %qT as first parameter",
+		ptr_type_node);
     }
   switch (e)
   {
Index: testsuite/g++.dg/init/delete3.C
===================================================================
--- testsuite/g++.dg/init/delete3.C	(nonexistent)
+++ testsuite/g++.dg/init/delete3.C	(working copy)
@@ -0,0 +1 @@
+int operator delete (void*, int);  // { dg-error "5:.operator delete. must return type .void." }
Index: testsuite/g++.dg/init/new25.C
===================================================================
--- testsuite/g++.dg/init/new25.C	(revision 261457)
+++ testsuite/g++.dg/init/new25.C	(working copy)
@@ -4,14 +4,14 @@
 class C
 {
 public:
-  void* operator new(std::size_t = 32) throw (std::bad_alloc); // { dg-error "first parameter" }
+  void* operator new(std::size_t = 32) throw (std::bad_alloc); // { dg-error "9:the first parameter of .operator new. cannot have a default argument" }
 							       // { dg-error "dynamic exception specification" "" { target c++17 } .-1 }
 							       // { dg-warning "deprecated" "" { target { c++11 && { ! c++17 } } } .-2 }
-  void* operator new[](std::size_t = 32) throw (std::bad_alloc); // { dg-error "first parameter" }
+  void* operator new[](std::size_t = 32) throw (std::bad_alloc); // { dg-error "9:the first parameter of .operator new. cannot have a default argument" }
 								 // { dg-error "dynamic exception specification" "" { target c++17 } .-1 }
 								 // { dg-warning "deprecated" "" { target { c++11 && { ! c++17 } } } .-2 }
-  void* operator new(std::size_t = 32, const std::nothrow_t&) throw(); // { dg-error "first parameter" }
-  void* operator new[](std::size_t = 32, const std::nothrow_t&) throw(); // { dg-error "first parameter" }
+  void* operator new(std::size_t = 32, const std::nothrow_t&) throw(); // { dg-error "9:the first parameter of .operator new. cannot have a default argument" }
+  void* operator new[](std::size_t = 32, const std::nothrow_t&) throw(); // { dg-error "9:the first parameter of .operator new. cannot have a default argument" }
 };
 
 class D
@@ -26,8 +26,8 @@ class D
 class E
 {
 public:
-  void* operator new(std::size_t = 0,
-		     const std::nothrow_t& = std::nothrow_t()) throw(); // { dg-error "first parameter" }
-  void* operator new[](std::size_t = 0,
-		       const std::nothrow_t& = std::nothrow_t()) throw(); // { dg-error "first parameter" }
+  void* operator new(std::size_t = 0,  // { dg-error "9:the first parameter of .operator new. cannot have a default argument" }
+		     const std::nothrow_t& = std::nothrow_t()) throw();
+  void* operator new[](std::size_t = 0,  // { dg-error "9:the first parameter of .operator new. cannot have a default argument" }
+		       const std::nothrow_t& = std::nothrow_t()) throw();
 };
Index: testsuite/g++.dg/init/new49.C
===================================================================
--- testsuite/g++.dg/init/new49.C	(nonexistent)
+++ testsuite/g++.dg/init/new49.C	(working copy)
@@ -0,0 +1 @@
+int operator new (__SIZE_TYPE__, int);  // { dg-error "5:.operator new. must return type .void*." }
Index: testsuite/g++.dg/template/new4.C
===================================================================
--- testsuite/g++.dg/template/new4.C	(revision 261457)
+++ testsuite/g++.dg/template/new4.C	(working copy)
@@ -4,5 +4,6 @@
 struct A
 {
     template<typename T>
-    static void* operator new(T) {} // { dg-error "first parameter|invalid template" }
+    static void* operator new(T) {}  // { dg-error "invalid template" }
+// { dg-error "18:.operator new. takes type .size_t." "first" { target *-*-* } .-1 }
 };
Index: testsuite/g++.old-deja/g++.jason/operator.C
===================================================================
--- testsuite/g++.old-deja/g++.jason/operator.C	(revision 261457)
+++ testsuite/g++.old-deja/g++.jason/operator.C	(working copy)
@@ -25,8 +25,8 @@ struct B {
 
 int operator-(int a, int b);	// { dg-error "5:.int operator-\\(int, int\\). must have an argument of class or enumerated type" }
 
-void * operator new (A a);	// { dg-error "first parameter" }
-void operator delete (A a);	// { dg-error "first parameter" }
+void * operator new (A a);	// { dg-error ".operator new. takes type .size_t." }
+void operator delete (A a);	// { dg-error ".operator delete. takes type .void\\*. as first parameter" }
 
 char * operator char * (int);	// { dg-error "return type" "ret" }
 // { dg-error "8:.operator char\\*\\*\\(int\\). must be a nonstatic member function" "mem" { target *-*-* } .-1 }
