tree.c (cp_copy_res_decl_for_inlining): Adjust DECL_ABSTRACT_ORIGIN for the return variable.

	* tree.c (cp_copy_res_decl_for_inlining): Adjust
	DECL_ABSTRACT_ORIGIN for the return variable.

	* g++.dg/other/debug1.C: New test.

From-SVN: r46702

gcc/cp/ChangeLog

+2001-11-01  Jakub Jelinek  <jakub@redhat.com>
+
+	* tree.c (cp_copy_res_decl_for_inlining): Adjust
+	DECL_ABSTRACT_ORIGIN for the return variable.
+
 2001-10-31  Zack Weinberg  <zack@codesourcery.com>
 
 	*  Make-lang.in: Replace $(INTL_TARGETS) with po-generated.

gcc/cp/tree.c

@@ -2250,6 +2250,7 @@ cp_copy_res_decl_for_inlining (result, fn, caller, decl_map_,
 	  DECL_NAME (var) = DECL_NAME (nrv);
 	  DECL_SOURCE_FILE (var) = DECL_SOURCE_FILE (nrv);
 	  DECL_SOURCE_LINE (var) = DECL_SOURCE_LINE (nrv);
+	  DECL_ABSTRACT_ORIGIN (var) = DECL_ORIGIN (nrv);
 	  splay_tree_insert (decl_map,
 			     (splay_tree_key) nrv,
 			     (splay_tree_value) var);

gcc/testsuite/ChangeLog

+2001-11-01  Jakub Jelinek  <jakub@redhat.com>
+
+	* g++.dg/other/debug1.C: New test.
+
 2001-11-01  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 
 	* gcc.c-torture/compile/20010327-1.c: Use __SIZE_TYPE__ instead

gcc/testsuite/g++.dg/other/debug1.C

+// Test whether dwarf2 debug info works with named return value optimization
+// { dg-do compile { i?86-*-linux* }
+// { dg-options "-O2 -gdwarf-2" }
+
+struct S
+{
+  virtual ~S();
+  S (const char *str);
+  S& operator= (const char *str);
+  operator const char *() const;
+  S& operator+= (const char *str);
+};
+inline S operator+ (const char *s1, const S &s2)
+{
+  S x (s1);
+  x += s2;
+  return x;
+}
+struct U
+{
+  U ();
+  U& operator= (const char *);
+  const char *foo() const;
+  operator const char *() const { return foo(); }
+};
+template <class T> struct V
+{
+  T v;
+};
+template <class T> struct W
+{
+  V<T> *w;
+  W() : w (0) {}
+  const T& operator* () const { return w->v; }
+  T& operator* () { return w->v; }
+};
+struct X {
+  X();
+};
+struct Y {
+  Y (const U &u);
+};
+X::X()
+{
+  W<U> a;
+  U b;
+  b = (*a) + "xx";
+  Y c (b);
+}