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riscv-gcc-1
Commit 91086990 by Ulrich Weigand Committed by Ulrich Weigand
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s390-protos.h (s390_arg_frame_offset): Remove. 

	* config/s390/s390-protos.h (s390_arg_frame_offset): Remove.
	(s390_return_address_offset): Remove.
	(s390_can_eliminate): Add prototype.
	(s390_initial_elimination_offset): Add prototype.
	* config/s390/s390.h (CAN_ELIMINATE): Call s390_can_eliminate.
	(INITIAL_ELIMINATION_OFFSET): Call s390_initial_elimination_offset.
	* config/s390/s390.c (s390_arg_frame_offset): Remove.
	(s390_return_address_offset): Remove.
	(s390_can_eliminate, s390_initial_elimination_offset): New functions.
	(struct machine_function): New member split_branches_pending_p.
	(s390_mainpool_start): Allow nonexistant pool insn for empty pool.
	(s390_mainpool_finish): Likewise.  Clear base_reg if pool empty.
	(s390_optimize_prologue): Remove base_used argument.  Call
	s390_update_frame_layout instead of s390_register_info.  Handle
	prologue/epilogue insns that touch only RETURN_REGNUM.
	(s390_reorg): Remove base_used.  Clear split_branches_pending_p.
	(s390_register_info): Remove base_used and return_addr_used
	arguments, compute special register usage inline.  Return live
	register data to caller.
	(s390_frame_info): Remove arguments, do not call s390_register_info.
	(s390_init_frame_layout): New function.
	(s390_update_frame_layout): Likewise.
	(s390_emit_prologue): Call s390_update_frame_layout; some code
	move to there.  Do not emit pool placeholder insn if unnecessary.

From-SVN: r88357
parent 13c025c1
Showing with 32 additions and 20 deletions
gcc/ChangeLog
2004-09-30 Ulrich Weigand <uweigand@de.ibm.com>
* config/s390/s390-protos.h (s390_arg_frame_offset): Remove.
(s390_return_address_offset): Remove.
(s390_can_eliminate): Add prototype.
(s390_initial_elimination_offset): Add prototype.
* config/s390/s390.h (CAN_ELIMINATE): Call s390_can_eliminate.
(INITIAL_ELIMINATION_OFFSET): Call s390_initial_elimination_offset.
* config/s390/s390.c (s390_arg_frame_offset): Remove.
(s390_return_address_offset): Remove.
(s390_can_eliminate, s390_initial_elimination_offset): New functions.
(struct machine_function): New member split_branches_pending_p.
(s390_mainpool_start): Allow nonexistant pool insn for empty pool.
(s390_mainpool_finish): Likewise. Clear base_reg if pool empty.
(s390_optimize_prologue): Remove base_used argument. Call
s390_update_frame_layout instead of s390_register_info. Handle
prologue/epilogue insns that touch only RETURN_REGNUM.
(s390_reorg): Remove base_used. Clear split_branches_pending_p.
(s390_register_info): Remove base_used and return_addr_used
arguments, compute special register usage inline. Return live
register data to caller.
(s390_frame_info): Remove arguments, do not call s390_register_info.
(s390_init_frame_layout): New function.
(s390_update_frame_layout): Likewise.
(s390_emit_prologue): Call s390_update_frame_layout; some code
move to there. Do not emit pool placeholder insn if unnecessary.
2004-09-30 Ulrich Weigand <uweigand@de.ibm.com>
* config/s390/s390.c (legitimate_reload_constant_p): Remove
floating point constant workaround.
(s390_secondary_input_reload_class): Handle PLUS reloads
......
gcc/config/s390/s390-protos.h
......@@ -23,8 +23,8 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
extern void optimization_options (int, int);
extern void override_options (void);
extern HOST_WIDE_INT s390_arg_frame_offset (void);
extern HOST_WIDE_INT s390_return_address_offset (void);
extern bool s390_can_eliminate (int, int);
extern HOST_WIDE_INT s390_initial_elimination_offset (int, int);
extern void s390_emit_prologue (void);
extern void s390_emit_epilogue (bool);
extern void s390_function_profiler (FILE *, int);
......
gcc/config/s390/s390.h
......@@ -652,26 +652,11 @@ extern int current_function_outgoing_args_size;
{ RETURN_ADDRESS_POINTER_REGNUM, STACK_POINTER_REGNUM}, \
{ RETURN_ADDRESS_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM}}
#define CAN_ELIMINATE(FROM, TO) (1)
#define CAN_ELIMINATE(FROM, TO) \
s390_can_eliminate ((FROM), (TO))
#define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \
{ if ((FROM) == FRAME_POINTER_REGNUM && (TO) == STACK_POINTER_REGNUM) \
{ (OFFSET) = 0; } \
else if ((FROM) == FRAME_POINTER_REGNUM \
&& (TO) == HARD_FRAME_POINTER_REGNUM) \
{ (OFFSET) = 0; } \
else if ((FROM) == ARG_POINTER_REGNUM \
&& (TO) == HARD_FRAME_POINTER_REGNUM) \
{ (OFFSET) = s390_arg_frame_offset (); } \
else if ((FROM) == ARG_POINTER_REGNUM && (TO) == STACK_POINTER_REGNUM) \
{ (OFFSET) = s390_arg_frame_offset (); } \
else if ((FROM) == RETURN_ADDRESS_POINTER_REGNUM \
&& ((TO) == STACK_POINTER_REGNUM \
|| (TO) == HARD_FRAME_POINTER_REGNUM)) \
{ (OFFSET) = s390_return_address_offset (); } \
else \
abort(); \
}
(OFFSET) = s390_initial_elimination_offset ((FROM), (TO))
/* Stack arguments. */
......
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