Propagate the source location from a template function's definition to

any already-instantiated declarations.

	PR c++/46527
	* gcc/cp/pt.c (instantiate_decl): Propagate the template's
	location to its instance.
	* gcc/testsuite/g++.dg/debug/dwarf2/pr46527.C: New test.

From-SVN: r167104

gcc/cp/ChangeLog

+2010-11-23  Jeffrey Yasskin <jyasskin@google.com>
+
+	PR c++/46527
+	* pt.c (instantiate_decl): Propagate the template's location to
+	its instance.
+
 2010-11-20  Joseph Myers  <joseph@codesourcery.com>
 
 	* name-lookup.c (handle_namespace_attrs): Don't check

gcc/cp/pt.c

@@ -17152,6 +17152,8 @@ instantiate_decl (tree d, int defer_ok,
       && !DECL_NOT_REALLY_EXTERN (d))
     mark_definable (d);
 
+  DECL_SOURCE_LOCATION (td) = DECL_SOURCE_LOCATION (code_pattern);
+  DECL_SOURCE_LOCATION (d) = DECL_SOURCE_LOCATION (code_pattern);
   input_location = DECL_SOURCE_LOCATION (d);
 
   /* If D is a member of an explicitly instantiated class template,

gcc/testsuite/ChangeLog

+2010-11-23  Jeffrey Yasskin <jyasskin@google.com>
+
+	PR c++/46527
+	* g++.dg/debug/dwarf2/pr46527.C: New test.
+
 2010-11-23  Iain Sandoe  <iains@gcc.gnu.org>
 
 	* gcc.dg/darwin-cfstring-1.c: Adjust format messages.

gcc/testsuite/g++.dg/debug/dwarf2/pr46527.C

+// Origin: PR 46527
+// { dg-do compile }
+// { dg-options "-g -O0 -dA" }
+
+template <typename T> struct Struct {
+  double defined_later();
+};
+struct WrapperStruct {
+  Struct<double> ClassInstantiated;
+};
+template <typename T> double
+Struct<T>::defined_later()  // { dg-function-on-line {_ZN6StructIdE13defined_laterEv} }
+{
+  return 1;
+}
+void InstantiateMethod() {
+  Struct<double>().defined_later();
+}