From 14c2101daa9fd45e83de153275c7650950f1b7de Mon Sep 17 00:00:00 2001
From: Jason Merrill <jason@gcc.gnu.org>
Date: Thu, 6 May 2010 16:51:52 -0400
Subject: Add support for C++0x nullptr.

gcc:
	* c-common.c (c_common_reswords): Add nullptr.
	* c-common.h: Add RID_NULLPTR.  Reorganize C++0x rids.
	* dwarf2out.c (is_base_type): Handle NULLPTR_TYPE.
	(gen_type_die_with_usage): Likewise.
	* dbxout.c (dbxout_type): Likewise.
	* sdbout.c (plain_type_1): Likewise.
gcc/cp:
	* cp-tree.def: Add NULLPTR_TYPE.
	* cp-tree.h: Add nullptr_node.
	(cp_tree_index): Add CPTI_NULLPTR.
	(SCALAR_TYPE_P): Add NULLPTR_TYPE.
	* call.c (null_ptr_cst_p): Handle nullptr.
	(standard_conversion): Likewise.
	(convert_arg_to_ellipsis): Likewise.
	* mangle.c (write_type): Likewise.
	* name-lookup.c (arg_assoc_type): Likewise.
	* parser.c (cp_parser_primary_expression): Likewise.
	* typeck.c (cp_build_binary_op): Likewise.
	(build_reinterpret_cast_1): Likewise.
	* error.c (dump_type): Likewise.
	(dump_type_prefix, dump_type_suffix): Likewise.
	* decl.c (cxx_init_decl_processing): Likewise.
	* cxx-pretty-print.c (pp_cxx_constant): Likewise.
	* cvt.c (ocp_convert): Likewise.
	* rtti.c (typeinfo_in_lib_p, emit_support_tinfos): Put
	nullptr_t tinfo in libsupc++.
libstdc++-v3:
	* config/abi/pre/gnu.ver: Add typeinfo for decltype(nullptr).
libiberty:
	* cp-demangle.c (cplus_demangle_builtin_types): Add nullptr.
	(cplus_demangle_type): Handle nullptr.

From-SVN: r159131
---
 gcc/dwarf2out.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'gcc/dwarf2out.c')

diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c
index 416f75a..66ac5eb 100644
--- a/gcc/dwarf2out.c
+++ b/gcc/dwarf2out.c
@@ -12108,6 +12108,7 @@ is_base_type (tree type)
     case ENUMERAL_TYPE:
     case FUNCTION_TYPE:
     case METHOD_TYPE:
+    case NULLPTR_TYPE:
     case POINTER_TYPE:
     case REFERENCE_TYPE:
     case OFFSET_TYPE:
@@ -19171,6 +19172,18 @@ gen_type_die_with_usage (tree type, dw_die_ref context_die,
 	 when appropriate.  */
       return;
 
+    case NULLPTR_TYPE:
+      {
+        dw_die_ref type_die = lookup_type_die (type);
+        if (type_die == NULL)
+          {
+            type_die = new_die (DW_TAG_unspecified_type, comp_unit_die, type);
+            add_name_attribute (type_die, "decltype(nullptr)");
+            equate_type_number_to_die (type, type_die);
+          }
+      }
+      return;
+
     case VOID_TYPE:
     case INTEGER_TYPE:
     case REAL_TYPE:
-- 
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