avr_initial_elimination_offset.
(frame_pointer_required_p): Rename to avr_frame_pointer_required_p,
change return type to bool.
(avr_can_eliminate): New function.
* config/avr/avr.h (CAN_ELIMINATE): Use avr_can_eliminate.
(FRAME_POINTER_REQUIRED): Use avr_frame_pointer_required_p.
(INITIAL_ELIMINATION_OFFSET): Use avr_initial_elimination_offset.
* config/avr/avr-protos.h (initial_elimination_offset) : Rename to
avr_initial_elimination_offset.
(frame_pointer_required_p): Rename to avr_frame_pointer_required_p.
(avr_initial_elimination_offset): Define.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@146989
138bc75d-0d04-0410-961f-
82ee72b054a4
+2009-04-29 Anatoly Sokolov <aesok@post.ru>
+
+ * config/avr/avr.c (initial_elimination_offset): Rename to
+ avr_initial_elimination_offset.
+ (frame_pointer_required_p): Rename to avr_frame_pointer_required_p,
+ change return type to bool.
+ (avr_can_eliminate): New function.
+ * config/avr/avr.h (CAN_ELIMINATE): Use avr_can_eliminate.
+ (FRAME_POINTER_REQUIRED): Use avr_frame_pointer_required_p.
+ (INITIAL_ELIMINATION_OFFSET): Use avr_initial_elimination_offset.
+ * config/avr/avr-protos.h (initial_elimination_offset) : Rename to
+ avr_initial_elimination_offset.
+ (frame_pointer_required_p): Rename to avr_frame_pointer_required_p.
+ (avr_initial_elimination_offset): Define.
+
2009-04-29 Eric Botcazou <ebotcazou@adacore.com>
Steven Bosscher <steven@gcc.gnu.org>
extern enum reg_class class_likely_spilled_p (int c);
extern enum reg_class avr_regno_reg_class (int r);
extern enum reg_class avr_reg_class_from_letter (int c);
-extern int frame_pointer_required_p (void);
+extern int avr_frame_pointer_required_p (void);
extern void asm_globalize_label (FILE *file, const char *name);
extern void avr_asm_declare_function_name (FILE *, const char *, tree);
extern void order_regs_for_local_alloc (void);
-extern int initial_elimination_offset (int from, int to);
+extern bool avr_can_eliminate (int, int);
+extern int avr_initial_elimination_offset (int from, int to);
extern int avr_simple_epilogue (void);
extern void gas_output_limited_string (FILE *file, const char *str);
extern void gas_output_ascii (FILE *file, const char *str, size_t length);
return count;
}
+/* Return true if register FROM can be eliminated via register TO. */
+
+bool
+avr_can_eliminate (int from, int to)
+{
+ return ((from == ARG_POINTER_REGNUM && to == FRAME_POINTER_REGNUM)
+ || ((from == FRAME_POINTER_REGNUM
+ || from == FRAME_POINTER_REGNUM + 1)
+ && !frame_pointer_needed));
+}
+
/* Compute offset between arg_pointer and frame_pointer. */
int
-initial_elimination_offset (int from, int to)
+avr_initial_elimination_offset (int from, int to)
{
if (from == FRAME_POINTER_REGNUM && to == STACK_POINTER_REGNUM)
return 0;
/* Return 1 if frame pointer for current function required. */
-int
-frame_pointer_required_p (void)
+bool
+avr_frame_pointer_required_p (void)
{
return (cfun->calls_alloca
|| crtl->args.info.nregs == 0
#define STATIC_CHAIN_REGNUM 2
-#define FRAME_POINTER_REQUIRED frame_pointer_required_p()
+#define FRAME_POINTER_REQUIRED avr_frame_pointer_required_p()
/* Offset from the frame pointer register value to the top of the stack. */
#define FRAME_POINTER_CFA_OFFSET(FNDECL) 0
{FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM} \
,{FRAME_POINTER_REGNUM+1,STACK_POINTER_REGNUM+1}}
-#define CAN_ELIMINATE(FROM, TO) (((FROM) == ARG_POINTER_REGNUM \
- && (TO) == FRAME_POINTER_REGNUM) \
- || (((FROM) == FRAME_POINTER_REGNUM \
- || (FROM) == FRAME_POINTER_REGNUM+1) \
- && ! FRAME_POINTER_REQUIRED \
- ))
+#define CAN_ELIMINATE(FROM, TO) avr_can_eliminate (FROM, TO)
#define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \
- OFFSET = initial_elimination_offset (FROM, TO)
+ OFFSET = avr_initial_elimination_offset (FROM, TO)
#define RETURN_ADDR_RTX(count, x) \
gen_rtx_MEM (Pmode, memory_address (Pmode, plus_constant (tem, 1)))