re PR debug/39471 (DW_TAG_imported_module should be used (not DW_TAG_imported_declaration))

	PR debug/39471
	* dwarf2out.c (dwarf2out_imported_module_or_decl_1): Emit
	DW_TAG_imported_module even if decl is IMPORTED_DECL with
	NAMESPACE_DECL in its DECL_INITIAL.

	* cp-gimplify.c (cp_gimplify_expr): Don't set DECL_NAME
	on IMPORTED_DECL.

	* g++.dg/debug/dwarf2/imported-module-2.C: Expect
	DW_TAG_imported_module, not just any DW_TAG_imported prefixed tag.
	* g++.dg/debug/dwarf2/imported-module-3.C: Likewise.
	* g++.dg/debug/dwarf2/imported-module-4.C: Likewise.

From-SVN: r144911

gcc/ChangeLog

 2009-03-17  Jakub Jelinek  <jakub@redhat.com>
 
+	PR debug/39471
+	* dwarf2out.c (dwarf2out_imported_module_or_decl_1): Emit
+	DW_TAG_imported_module even if decl is IMPORTED_DECL with
+	NAMESPACE_DECL in its DECL_INITIAL.
+
 	PR middle-end/39443
 	* optabs.c (set_user_assembler_libfunc): New function.
 	* expr.h (set_user_assembler_libfunc): New prototype.

gcc/cp/ChangeLog

+2009-03-17  Jakub Jelinek  <jakub@redhat.com>
+
+	PR debug/39471
+	* cp-gimplify.c (cp_gimplify_expr): Don't set DECL_NAME
+	on IMPORTED_DECL.
+
 2009-03-09  Jakub Jelinek  <jakub@redhat.com>
 
 	PR c++/39371

gcc/cp/cp-gimplify.c

@@ -593,8 +593,6 @@ cp_gimplify_expr (tree *expr_p, gimple_seq *pre_p, gimple_seq *post_p)
 
 	  IMPORTED_DECL_ASSOCIATED_DECL (using_directive)
 	    = TREE_OPERAND (*expr_p, 0);
-	  DECL_NAME (using_directive)
-	    = DECL_NAME (TREE_OPERAND (*expr_p, 0));
 	  TREE_CHAIN (using_directive) = BLOCK_VARS (block);
 	  BLOCK_VARS (block) = using_directive;
 	}

gcc/dwarf2out.c

@@ -15380,12 +15380,11 @@ dwarf2out_imported_module_or_decl_1 (tree decl,
     }
   else if (TREE_CODE (decl) == IMPORTED_DECL)
     {
-      tree imported_ns_decl;
+      tree imported_ns_decl = IMPORTED_DECL_ASSOCIATED_DECL (decl);
       /* IMPORTED_DECL nodes that are not imported namespace are just not
          supported yet.  */
-      gcc_assert (DECL_INITIAL (decl)
-		  && TREE_CODE (DECL_INITIAL (decl)) == NAMESPACE_DECL);
-      imported_ns_decl = DECL_INITIAL (decl);
+      gcc_assert (imported_ns_decl
+		  && TREE_CODE (imported_ns_decl) == NAMESPACE_DECL);
       at_import_die = lookup_decl_die (imported_ns_decl);
       if (!at_import_die)
 	at_import_die = force_decl_die (imported_ns_decl);
@@ -15414,7 +15413,10 @@ dwarf2out_imported_module_or_decl_1 (tree decl,
 	}
     }
 
-  if (TREE_CODE (decl) == NAMESPACE_DECL)
+  if (TREE_CODE (decl) == NAMESPACE_DECL
+      || (TREE_CODE (decl) == IMPORTED_DECL
+	  && (TREE_CODE (IMPORTED_DECL_ASSOCIATED_DECL (decl))
+	      == NAMESPACE_DECL)))
     imported_die = new_die (DW_TAG_imported_module,
 			    lexical_block_die,
 			    lexical_block);

gcc/testsuite/ChangeLog

 2009-03-17  Jakub Jelinek  <jakub@redhat.com>
 
+	PR debug/39471
+	* g++.dg/debug/dwarf2/imported-module-2.C: Expect
+	DW_TAG_imported_module, not just any DW_TAG_imported prefixed tag.
+	* g++.dg/debug/dwarf2/imported-module-3.C: Likewise.
+	* g++.dg/debug/dwarf2/imported-module-4.C: Likewise.
+
 	PR middle-end/39443
 	* gcc.dg/pr39443.c: New test.
 

gcc/testsuite/g++.dg/debug/dwarf2/imported-module-2.C

@@ -2,7 +2,7 @@
 // Origin: PR debug/38390
 // { dg-do compile  }
 // { dg-options "-g -dA" }
-// { dg-final { scan-assembler "DW_TAG_imported" }  }
+// { dg-final { scan-assembler "DW_TAG_imported_module" }  }
 
 namespace A
 {

gcc/testsuite/g++.dg/debug/dwarf2/imported-module-3.C

 // PR debug/39379
 // { dg-do compile }
 // { dg-options "-g -dA" }
-// { dg-final { scan-assembler "DW_TAG_imported" }  }
+// { dg-final { scan-assembler "DW_TAG_imported_module" }  }
 
 namespace A
 {

gcc/testsuite/g++.dg/debug/dwarf2/imported-module-4.C

 // PR debug/39379
 // { dg-do compile }
 // { dg-options "-g -dA" }
-// { dg-final { scan-assembler "DW_TAG_imported" }  }
+// { dg-final { scan-assembler "DW_TAG_imported_module" }  }
 
 namespace A
 {