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[Ada] Don't generate RTL in gigi
- From: Eric Botcazou <ebotcazou at adacore dot com>
- To: gcc-patches at gcc dot gnu dot org
- Cc: Steven Bosscher <stevenb dot gcc at gmail dot com>
- Date: Mon, 2 Aug 2010 15:40:28 +0200
- Subject: [Ada] Don't generate RTL in gigi
This eliminates the (presumably) last bits of RTL generation in gigi.
Tested on x86-64-suse-linux. Steven, let me know if I've forgotten something.
2010-08-02 Eric Botcazou <ebotcazou@adacore.com>
* gcc-interface/decl.c: Do not undefine N_GCC_FRONTEND and do not
include expr.h.
(gnat_to_gnu_entity) <object>: Force address of -1 at the tree level
for the debug-only entity.
* gcc-interface/Make-lang.in (ada/decl.o): Adjust dependencies.
--
Eric Botcazou
Index: gcc-interface/decl.c
===================================================================
--- gcc-interface/decl.c (revision 162622)
+++ gcc-interface/decl.c (working copy)
@@ -23,10 +23,6 @@
* *
****************************************************************************/
-/* FIXME: Still need to include rtl.h here (via expr.h) because this file
- actually generates RTL (search for gen_rtx_* in gnat_to_gnu_entity). */
-#undef IN_GCC_FRONTEND
-
#include "config.h"
#include "system.h"
#include "coretypes.h"
@@ -36,7 +32,6 @@
#include "toplev.h"
#include "ggc.h"
#include "target.h"
-#include "expr.h"
#include "tree-inline.h"
#include "ada.h"
@@ -600,18 +595,18 @@ gnat_to_gnu_entity (Entity_Id gnat_entit
&& DECL_NAME (TYPE_NAME (gnu_type)) == exception_data_name_id)
gnu_type = except_type_node;
- /* For a debug renaming declaration, build a pure debug entity. */
+ /* For a debug renaming declaration, build a debug-only entity. */
if (Present (Debug_Renaming_Link (gnat_entity)))
{
- rtx addr;
+ /* Force a non-null value to make sure the symbol is retained. */
+ tree value = build1 (INDIRECT_REF, gnu_type,
+ build1 (NOP_EXPR,
+ build_pointer_type (gnu_type),
+ integer_minus_one_node));
gnu_decl = build_decl (input_location,
VAR_DECL, gnu_entity_name, gnu_type);
- /* The (MEM (CONST (0))) pattern is prescribed by STABS. */
- if (global_bindings_p ())
- addr = gen_rtx_CONST (VOIDmode, const0_rtx);
- else
- addr = stack_pointer_rtx;
- SET_DECL_RTL (gnu_decl, gen_rtx_MEM (Pmode, addr));
+ SET_DECL_VALUE_EXPR (gnu_decl, value);
+ DECL_HAS_VALUE_EXPR_P (gnu_decl) = 1;
gnat_pushdecl (gnu_decl, gnat_entity);
break;
}
Index: gcc-interface/Make-lang.in
===================================================================
--- gcc-interface/Make-lang.in (revision 162622)
+++ gcc-interface/Make-lang.in (working copy)
@@ -1235,8 +1235,8 @@ ada/cuintp.o : ada/gcc-interface/cuintp.
$(COMPILER) -c $(ALL_COMPILERFLAGS) -I.. $(ALL_CPPFLAGS) $< -o $@
ada/decl.o : ada/gcc-interface/decl.c $(CONFIG_H) $(SYSTEM_H) coretypes.h \
- $(TM_H) $(TREE_H) $(FLAGS_H) toplev.h $(TARGET_H) $(EXPR_H) \
- $(TREE_INLINE_H) ada/gcc-interface/ada.h ada/types.h ada/atree.h \
+ $(TM_H) $(TREE_H) $(FLAGS_H) toplev.h $(TARGET_H) $(TREE_INLINE_H) \
+ ada/gcc-interface/ada.h ada/types.h ada/atree.h \
ada/elists.h ada/namet.h ada/nlists.h ada/repinfo.h ada/snames.h \
ada/stringt.h ada/uintp.h ada/fe.h ada/sinfo.h ada/einfo.h $(ADA_TREE_H) \
ada/gcc-interface/gigi.h gt-ada-decl.h