rs6000.h (ARG_POINTER_CFA_OFFSET): New definition...

* config/rs6000/rs6000.h (ARG_POINTER_CFA_OFFSET): New definition,
try to protect against middle-end changes that break binary
compatibility.
(DWARF_FRAME_REGISTERS): New definition, likewise for backend.

From-SVN: r32719

gcc/ChangeLog

+2000-03-23  Geoff Keating  <geoffk@cygnus.com>
+
+	* config/rs6000/rs6000.h (ARG_POINTER_CFA_OFFSET): New definition,
+	try to protect against middle-end changes that break binary
+	compatibility.
+	(DWARF_FRAME_REGISTERS): New definition, likewise for backend.
+
 2000-03-24  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>
 
 	* config/c4x/c4x.md (load_immed_address):  Add DP reg clobber.

gcc/config/rs6000/rs6000.h

@@ -2672,6 +2672,11 @@ do {									\
 #define INCOMING_RETURN_ADDR_RTX   gen_rtx_REG (Pmode, LINK_REGISTER_REGNUM)
 #define DWARF_FRAME_RETURN_COLUMN  DWARF_FRAME_REGNUM (LINK_REGISTER_REGNUM)
 
+/* These values are set like this for backwards compatibility,
+   and can't be changed no matter how wrong they are :-(.  */
+#define DWARF_FRAME_REGISTERS 77
+#define ARG_POINTER_CFA_OFFSET(FNDECL) 0
+
 /* Define results of standard character escape sequences.  */
 #define TARGET_BELL 007
 #define TARGET_BS 010