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riscv-gcc-1
Commit b0888988 by Richard Earnshaw Committed by Richard Earnshaw
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arm.md (ldmsi_postinc): Avoid use of match_dup between input and output operands. 

* arm.md (ldmsi_postinc): Avoid use of match_dup between input and
output operands.  Use arm_hard_register_operand for operand 4.
(stmsi_postinc): Similarly.
(ldmsi): Use arm_hard_register_operand for opernand 2.
(stmsi): Similarly.
* arm.c (arm_hard_register_operand): New function.
* arm-protos.h (arm_hard_register_operand): Prototype it.

* arm.h (HARD_REGNO_RENAME_OK): Define.

From-SVN: r38712
parent 90a74703
Showing with 56 additions and 18 deletions
gcc/ChangeLog
2001-01-05 Richard Earnshaw <rearnsha@arm.com>
* arm.md (ldmsi_postinc): Avoid use of match_dup between input and
output operands. Use arm_hard_register_operand for operand 4.
(stmsi_postinc): Similarly.
(ldmsi): Use arm_hard_register_operand for opernand 2.
(stmsi): Similarly.
* arm.c (arm_hard_register_operand): New function.
* arm-protos.h (arm_hard_register_operand): Prototype it.
* arm.h (HARD_REGNO_RENAME_OK): Define.
Fri Jan 5 16:29:49 MET 2001 Jan Hubicka <jh@suse.cz>
* simplify-rtx.c (cfc_args): add "unordered" field.
......
gcc/config/arm/arm-protos.h
/* Prototypes for exported functions defined in arm.c and pe.c
Copyright (C) 1999, 2000 Free Software Foundation, Inc.
Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
Contributed by Richard Earnshaw (rearnsha@arm.com)
Minor hacks by Nick Clifton (nickc@cygnus.com)
......@@ -60,6 +60,7 @@ extern int neg_const_double_rtx_ok_for_fpu PARAMS ((rtx));
/* Predicates. */
extern int s_register_operand PARAMS ((rtx, enum machine_mode));
extern int arm_hard_register_operand PARAMS ((rtx, enum machine_mode));
extern int f_register_operand PARAMS ((rtx, enum machine_mode));
extern int reg_or_int_operand PARAMS ((rtx, enum machine_mode));
extern int arm_reload_memory_operand PARAMS ((rtx, enum machine_mode));
......@@ -129,6 +130,7 @@ extern const char * output_return_instruction PARAMS ((rtx, int, int));
extern void arm_poke_function_name PARAMS ((FILE *, char *));
extern void output_arm_prologue PARAMS ((FILE *, int));
extern void arm_print_operand PARAMS ((FILE *, rtx, int));
extern void arm_print_operand_address PARAMS ((FILE *, rtx));
extern void arm_final_prescan_insn PARAMS ((rtx));
extern int arm_go_if_legitimate_address PARAMS ((enum machine_mode, rtx));
extern int arm_debugger_arg_offset PARAMS ((int, rtx));
......
gcc/config/arm/arm.c
/* Output routines for GCC for ARM.
Copyright (C) 1991, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000
Copyright (C) 1991, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
Free Software Foundation, Inc.
Contributed by Pieter `Tiggr' Schoenmakers (rcpieter@win.tue.nl)
and Martin Simmons (@harleqn.co.uk).
......@@ -2861,6 +2861,19 @@ s_register_operand (op, mode)
|| REGNO_REG_CLASS (REGNO (op)) != NO_REGS));
}
/* A hard register operand (even before reload. */
int
arm_hard_register_operand (op, mode)
register rtx op;
enum machine_mode mode;
{
if (GET_MODE (op) != mode && mode != VOIDmode)
return 0;
return (GET_CODE (op) == REG
&& REGNO (op) < FIRST_PSEUDO_REGISTER);
}
/* Only accept reg, subreg(reg), const_int. */
int
......
gcc/config/arm/arm.h
......@@ -1319,6 +1319,17 @@ enum reg_class
: \
((FROM) == HI_REGS || (TO) == HI_REGS) ? 4 : 2)
/* Register Renaming Parameters. */
/* A C expression that is nonzero if hard register number TO can be
considered for use as a rename register for FROM.
If the return register isn't already live, we mustn't use it. */
#define HARD_REGNO_RENAME_OK(FROM,TO) \
((TO) != LR_REGNUM || regs_ever_live[LR_REGNUM])
/* Stack layout; function entry, exit and calling. */
/* Define this if pushing a word on the stack
......
gcc/config/arm/arm.md
;;- Machine description for ARM for GNU compiler
;; Copyright 1991, 1993, 1994, 1995, 1996, 1996, 1997, 1998, 1999, 2000
;; Copyright 1991, 1993, 1994, 1995, 1996, 1996, 1997, 1998, 1999, 2000, 2001
;; Free Software Foundation, Inc.
;; Contributed by Pieter `Tiggr' Schoenmakers (rcpieter@win.tue.nl)
;; and Martin Simmons (@harleqn.co.uk).
......@@ -5187,12 +5187,12 @@
(define_insn "*ldmsi_postinc"
[(match_parallel 0 "load_multiple_operation"
[(set (match_operand:SI 1 "s_register_operand" "+r")
(plus:SI (match_dup 1)
(match_operand:SI 2 "const_int_operand" "n")))
(set (match_operand:SI 3 "s_register_operand" "=r")
(mem:SI (match_dup 1)))])]
"TARGET_ARM && (INTVAL (operands[2]) == 4 * (XVECLEN (operands[0], 0) - 1))"
[(set (match_operand:SI 1 "s_register_operand" "=r")
(plus:SI (match_operand:SI 2 "s_register_operand" "1")
(match_operand:SI 3 "const_int_operand" "n")))
(set (match_operand:SI 4 "arm_hard_register_operand" "")
(mem:SI (match_dup 2)))])]
"TARGET_ARM && (INTVAL (operands[3]) == 4 * (XVECLEN (operands[0], 0) - 1))"
"*
{
rtx ops[3];
......@@ -5214,7 +5214,7 @@
(define_insn "*ldmsi"
[(match_parallel 0 "load_multiple_operation"
[(set (match_operand:SI 1 "s_register_operand" "=r")
[(set (match_operand:SI 1 "arm_hard_register_operand" "")
(mem:SI (match_operand:SI 2 "s_register_operand" "r")))])]
"TARGET_ARM"
"*
......@@ -5263,12 +5263,12 @@
(define_insn "*stmsi_postinc"
[(match_parallel 0 "store_multiple_operation"
[(set (match_operand:SI 1 "s_register_operand" "+r")
(plus:SI (match_dup 1)
(match_operand:SI 2 "const_int_operand" "n")))
(set (mem:SI (match_dup 1))
(match_operand:SI 3 "s_register_operand" "r"))])]
"TARGET_ARM && (INTVAL (operands[2]) == 4 * (XVECLEN (operands[0], 0) - 1))"
[(set (match_operand:SI 1 "s_register_operand" "=r")
(plus:SI (match_operand:SI 2 "s_register_operand" "1")
(match_operand:SI 3 "const_int_operand" "n")))
(set (mem:SI (match_dup 2))
(match_operand:SI 4 "arm_hard_register_operand" ""))])]
"TARGET_ARM && (INTVAL (operands[3]) == 4 * (XVECLEN (operands[0], 0) - 1))"
"*
{
rtx ops[3];
......@@ -5295,8 +5295,8 @@
(define_insn "*stmsi"
[(match_parallel 0 "store_multiple_operation"
[(set (mem:SI (match_operand:SI 2 "s_register_operand" "r"))
(match_operand:SI 1 "s_register_operand" "r"))])]
[(set (mem:SI (match_operand:SI 1 "s_register_operand" "r"))
(match_operand:SI 2 "arm_hard_register_operand" ""))])]
"TARGET_ARM"
"*
{
......
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