dwarf2out.c (class_scope_p): New static inline.

	* dwarf2out.c (class_scope_p): New static inline.
	(class_or_namespace_scope_p): Use it.
	(gen_variable_die): Use DW_TAG_member tag for static data member
	declarations instead of DW_TAG_variable.

	* g++.dg/debug/dwarf2/static-data-member1.C: New test.

From-SVN: r145770

gcc/ChangeLog

+2009-04-08  Jakub Jelinek  <jakub@redhat.com>
+
+	* dwarf2out.c (class_scope_p): New static inline.
+	(class_or_namespace_scope_p): Use it.
+	(gen_variable_die): Use DW_TAG_member tag for static data member
+	declarations instead of DW_TAG_variable.
+
 2009-04-08  Richard Guenther  <rguenther@suse.de>
 
 	* tree-ssa-sccvn.c (valueize_refs): Do not continue to

gcc/dwarf2out.c

@@ -5136,6 +5136,7 @@ static void push_decl_scope (tree);
 static void pop_decl_scope (void);
 static dw_die_ref scope_die_for (tree, dw_die_ref);
 static inline int local_scope_p (dw_die_ref);
+static inline int class_scope_p (dw_die_ref);
 static inline int class_or_namespace_scope_p (dw_die_ref);
 static void add_type_attribute (dw_die_ref, tree, int, int, dw_die_ref);
 static void add_calling_convention_attribute (dw_die_ref, tree);
@@ -12679,18 +12680,26 @@ local_scope_p (dw_die_ref context_die)
   return 0;
 }
 
-/* Returns nonzero if CONTEXT_DIE is a class or namespace, for deciding
-   whether or not to treat a DIE in this context as a declaration.  */
+/* Returns nonzero if CONTEXT_DIE is a class.  */
 
 static inline int
-class_or_namespace_scope_p (dw_die_ref context_die)
+class_scope_p (dw_die_ref context_die)
 {
   return (context_die
 	  && (context_die->die_tag == DW_TAG_structure_type
 	      || context_die->die_tag == DW_TAG_class_type
 	      || context_die->die_tag == DW_TAG_interface_type
-	      || context_die->die_tag == DW_TAG_union_type
-	      || context_die->die_tag == DW_TAG_namespace));
+	      || context_die->die_tag == DW_TAG_union_type));
+}
+
+/* Returns nonzero if CONTEXT_DIE is a class or namespace, for deciding
+   whether or not to treat a DIE in this context as a declaration.  */
+
+static inline int
+class_or_namespace_scope_p (dw_die_ref context_die)
+{
+  return (class_scope_p (context_die)
+	  || (context_die && context_die->die_tag == DW_TAG_namespace));
 }
 
 /* Many forms of DIEs require a "type description" attribute.  This
@@ -13993,7 +14002,13 @@ gen_variable_die (tree decl, tree origin, dw_die_ref context_die)
       && old_die->die_parent == context_die)
     return;
 
-  var_die = new_die (DW_TAG_variable, context_die, decl);
+  /* For static data members, the declaration in the class is supposed
+     to have DW_TAG_member tag; the specification should still be
+     DW_TAG_variable referencing the DW_TAG_member DIE.  */
+  if (declaration && class_scope_p (context_die))
+    var_die = new_die (DW_TAG_member, context_die, decl);
+  else
+    var_die = new_die (DW_TAG_variable, context_die, decl);
 
   origin_die = NULL;
   if (origin != NULL)

gcc/testsuite/ChangeLog

+2009-04-08  Jakub Jelinek  <jakub@redhat.com>
+
+	* g++.dg/debug/dwarf2/static-data-member1.C: New test.
+
 2009-04-08  Jason Merrill  <jason@redhat.com>
 
 	PR c++/25185

gcc/testsuite/g++.dg/debug/dwarf2/static-data-member1.C

+// { dg-do compile }
+// { dg-options "-g -dA -fno-merge-debug-strings" }
+
+struct A
+{
+  static int staticdatamember;
+};
+
+int A::staticdatamember = 6;
+
+// { dg-final { scan-assembler "DW_TAG_member\[^\n\r\]*\[\n\r\]*\[^\n\r\]*staticdatamember\[^\n\r\]*DW_AT_name" } }
+// { dg-final { scan-assembler "DW_TAG_variable\[^\n\r\]*\[\n\r\]*\[^\n\r\]*DW_AT_specification" } }