rtl.def (DEBUG_IMPLICIT_PTR): New rtl code.

	* rtl.def (DEBUG_IMPLICIT_PTR): New rtl code.
	* rtl.h (DEBUG_IMPLICIT_PTR_DECL): Define.
	* rtl.c (rtx_equal_p_cb, rtx_equal_p): Handle DEBUG_IMPLICIT_PTR.
	* print-rtl.c (print_rtx): Likewise.
	* cselib.c (rtx_equal_for_cselib_p, cselib_hash_rtx): Likewise.
	* cfgexpand.c (expand_debug_expr): Generate DEBUG_IMPLICIT_PTR
	for ADDR_EXPR with non-addressable object.
	* dwarf2out.c (enum dw_val_class): Add dw_val_class_decl_ref.
	(struct dw_val_struct): Add v.val_decl_ref.
	(dwarf_stack_op_name, output_loc_operands, output_loc_operands_raw):
	Handle DW_OP_GNU_implicit_pointer.
	(size_of_loc_descr): Likewise.  Fix up DW_OP_call_ref size.
	(get_ref_die_offset_label): New function.
	(implicit_ptr_descriptor): New function.
	(mem_loc_descriptor): Handle DEBUG_IMPLICIT_PTR.
	(loc_descriptor): Likewise.
	(gen_variable_die): Put even definitions into decl_die_table.
	(resolve_addr_in_expr): Resolve still unresolved
	DW_OP_GNU_implicit_pointer operands, if it can't be resolved
	return false.
	(dwarf2out_finish): Call output_location_lists after outputting
	.debug_info and .debug_abbrev instead of before.

	* dwarf2.h (DW_OP_GNU_implicit_pointer): New.

2010-09-09  Roland McGrath  <roland@redhat.com>

	* dwarf2out.c (DWARF_REF_SIZE): Define.
	(size_of_loc_descr): Use it for DW_OP_call_ref.

From-SVN: r164050

1 files changed, 8 insertions, 0 deletions

diff --git a/gcc/rtl.c b/gcc/rtl.c
index 79dafcb..3a6affc 100644
--- a/gcc/rtl.c
+++ b/gcc/rtl.c
@@ -407,6 +407,10 @@ rtx_equal_p_cb (const_rtx x, const_rtx y, rtx_equal_p_callback_function cb)
     case CONST_FIXED:
       return 0;
 
+    case DEBUG_IMPLICIT_PTR:
+      return DEBUG_IMPLICIT_PTR_DECL (x)
+	     == DEBUG_IMPLICIT_PTR_DECL (y);
+
     default:
       break;
     }
@@ -527,6 +531,10 @@ rtx_equal_p (const_rtx x, const_rtx y)
     case CONST_FIXED:
       return 0;
 
+    case DEBUG_IMPLICIT_PTR:
+      return DEBUG_IMPLICIT_PTR_DECL (x)
+	     == DEBUG_IMPLICIT_PTR_DECL (y);
+
     default:
       break;
     }