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|
;; Load/Store Multiple patterns description of Andes NDS32 cpu for GNU compiler
;; Copyright (C) 2012-2014 Free Software Foundation, Inc.
;; Contributed by Andes Technology Corporation.for NDS32.
;;
;; This file is part of GCC.
;;
;; GCC is free software; you can redistribute it and/or modify it
;; under the terms of the GNU General Public License as published
;; by the Free Software Foundation; either version 3, or (at your
;; option) any later version.
;;
;; GCC is distributed in the hope that it will be useful, but WITHOUT
;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
;; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
;; License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with GCC; see the file COPYING3. If not see
;; <http://www.gnu.org/licenses/>.
;; Load Multiple Insns.
;;
;; operands[0] is the first of the consecutive registers.
;; operands[1] is the first memory location.
;; operands[2] is the number of consecutive registers.
(define_expand "load_multiple"
[(match_par_dup 3 [(set (match_operand:SI 0 "" "")
(match_operand:SI 1 "" ""))
(use (match_operand:SI 2 "" ""))])]
""
{
int maximum;
/* Because reduced-set regsiters has few registers
(r0~r5, r6~10, r15, r28~r31, where 'r15' and 'r28~r31' cannot
be used for register allocation),
using 8 registers for load_multiple may easily consume all of them.
It makes register allocation/spilling hard to work.
So we only allow maximum=4 registers for load_multiple
under reduced-set registers. */
if (TARGET_REDUCED_REGS)
maximum = 4;
else
maximum = 8;
/* Here are the conditions that must be all passed,
otherwise we have to FAIL this rtx generation:
1. The number of consecutive registers must be integer.
2. Maximum 4 or 8 registers for lmw.bi instruction
(based on this nds32-multiple.md design).
3. Minimum 2 registers for lmw.bi instruction
(based on this nds32-multiple.md design).
4. operands[0] must be register for sure.
5. operands[1] must be memory for sure.
6. Do not cross $r15 register because it is not allocatable. */
if (GET_CODE (operands[2]) != CONST_INT
|| INTVAL (operands[2]) > maximum
|| INTVAL (operands[2]) < 2
|| GET_CODE (operands[0]) != REG
|| GET_CODE (operands[1]) != MEM
|| REGNO (operands[0]) + INTVAL (operands[2]) > TA_REGNUM)
FAIL;
/* For (mem addr), we force_reg on addr here,
so that nds32_expand_load_multiple can easily use it. */
operands[3] = nds32_expand_load_multiple (REGNO (operands[0]),
INTVAL (operands[2]),
force_reg (SImode,
XEXP (operands[1], 0)),
operands[1]);
})
;; Ordinary Load Multiple.
(define_insn "*lmwsi8"
[(match_parallel 0 "nds32_load_multiple_operation"
[(set (match_operand:SI 2 "register_operand" "")
(mem:SI (match_operand:SI 1 "register_operand" "r")))
(set (match_operand:SI 3 "register_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 4))))
(set (match_operand:SI 4 "register_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 8))))
(set (match_operand:SI 5 "register_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 12))))
(set (match_operand:SI 6 "register_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 16))))
(set (match_operand:SI 7 "register_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 20))))
(set (match_operand:SI 8 "register_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 24))))
(set (match_operand:SI 9 "register_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 28))))])]
"(XVECLEN (operands[0], 0) == 8)"
"lmw.bi\t%2, [%1], %9, 0x0"
[(set_attr "type" "load")
(set_attr "length" "4")]
)
(define_insn "*lmwsi7"
[(match_parallel 0 "nds32_load_multiple_operation"
[(set (match_operand:SI 2 "register_operand" "")
(mem:SI (match_operand:SI 1 "register_operand" "r")))
(set (match_operand:SI 3 "register_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 4))))
(set (match_operand:SI 4 "register_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 8))))
(set (match_operand:SI 5 "register_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 12))))
(set (match_operand:SI 6 "register_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 16))))
(set (match_operand:SI 7 "register_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 20))))
(set (match_operand:SI 8 "register_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 24))))])]
"(XVECLEN (operands[0], 0) == 7)"
"lmw.bi\t%2, [%1], %8, 0x0"
[(set_attr "type" "load")
(set_attr "length" "4")]
)
(define_insn "*lmwsi6"
[(match_parallel 0 "nds32_load_multiple_operation"
[(set (match_operand:SI 2 "register_operand" "")
(mem:SI (match_operand:SI 1 "register_operand" "r")))
(set (match_operand:SI 3 "register_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 4))))
(set (match_operand:SI 4 "register_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 8))))
(set (match_operand:SI 5 "register_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 12))))
(set (match_operand:SI 6 "register_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 16))))
(set (match_operand:SI 7 "register_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 20))))])]
"(XVECLEN (operands[0], 0) == 6)"
"lmw.bi\t%2, [%1], %7, 0x0"
[(set_attr "type" "load")
(set_attr "length" "4")]
)
(define_insn "*lmwsi5"
[(match_parallel 0 "nds32_load_multiple_operation"
[(set (match_operand:SI 2 "register_operand" "")
(mem:SI (match_operand:SI 1 "register_operand" "r")))
(set (match_operand:SI 3 "register_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 4))))
(set (match_operand:SI 4 "register_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 8))))
(set (match_operand:SI 5 "register_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 12))))
(set (match_operand:SI 6 "register_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 16))))])]
"(XVECLEN (operands[0], 0) == 5)"
"lmw.bi\t%2, [%1], %6, 0x0"
[(set_attr "type" "load")
(set_attr "length" "4")]
)
(define_insn "*lmwsi4"
[(match_parallel 0 "nds32_load_multiple_operation"
[(set (match_operand:SI 2 "register_operand" "")
(mem:SI (match_operand:SI 1 "register_operand" "r")))
(set (match_operand:SI 3 "register_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 4))))
(set (match_operand:SI 4 "register_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 8))))
(set (match_operand:SI 5 "register_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 12))))])]
"(XVECLEN (operands[0], 0) == 4)"
"lmw.bi\t%2, [%1], %5, 0x0"
[(set_attr "type" "load")
(set_attr "length" "4")]
)
(define_insn "*lmwsi3"
[(match_parallel 0 "nds32_load_multiple_operation"
[(set (match_operand:SI 2 "register_operand" "")
(mem:SI (match_operand:SI 1 "register_operand" "r")))
(set (match_operand:SI 3 "register_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 4))))
(set (match_operand:SI 4 "register_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 8))))])]
"(XVECLEN (operands[0], 0) == 3)"
"lmw.bi\t%2, [%1], %4, 0x0"
[(set_attr "type" "load")
(set_attr "length" "4")]
)
(define_insn "*lmwsi2"
[(match_parallel 0 "nds32_load_multiple_operation"
[(set (match_operand:SI 2 "register_operand" "")
(mem:SI (match_operand:SI 1 "register_operand" "r")))
(set (match_operand:SI 3 "register_operand" "")
(mem:SI (plus:SI (match_dup 1) (const_int 4))))])]
"(XVECLEN (operands[0], 0) == 2)"
"lmw.bi\t%2, [%1], %3, 0x0"
[(set_attr "type" "load")
(set_attr "length" "4")]
)
;; Store Multiple Insns.
;;
;; operands[0] is the first memory location.
;; opernads[1] is the first of the consecutive registers.
;; operands[2] is the number of consecutive registers.
(define_expand "store_multiple"
[(match_par_dup 3 [(set (match_operand:SI 0 "" "")
(match_operand:SI 1 "" ""))
(use (match_operand:SI 2 "" ""))])]
""
{
int maximum;
/* Because reduced-set regsiters has few registers
(r0~r5, r6~10, r15, r28~r31, where 'r15' and 'r28~r31' cannot
be used for register allocation),
using 8 registers for store_multiple may easily consume all of them.
It makes register allocation/spilling hard to work.
So we only allow maximum=4 registers for store_multiple
under reduced-set registers. */
if (TARGET_REDUCED_REGS)
maximum = 4;
else
maximum = 8;
/* Here are the conditions that must be all passed,
otherwise we have to FAIL this rtx generation:
1. The number of consecutive registers must be integer.
2. Maximum 4 or 8 registers for smw.bi instruction
(based on this nds32-multiple.md design).
3. Minimum 2 registers for smw.bi instruction
(based on this nds32-multiple.md design).
4. operands[0] must be memory for sure.
5. operands[1] must be register for sure.
6. Do not cross $r15 register because it is not allocatable. */
if (GET_CODE (operands[2]) != CONST_INT
|| INTVAL (operands[2]) > maximum
|| INTVAL (operands[2]) < 2
|| GET_CODE (operands[0]) != MEM
|| GET_CODE (operands[1]) != REG
|| REGNO (operands[1]) + INTVAL (operands[2]) > TA_REGNUM)
FAIL;
/* For (mem addr), we force_reg on addr here,
so that nds32_expand_store_multiple can easily use it. */
operands[3] = nds32_expand_store_multiple (REGNO (operands[1]),
INTVAL (operands[2]),
force_reg (SImode,
XEXP (operands[0], 0)),
operands[0]);
})
;; Ordinary Store Multiple.
(define_insn "*stmsi8"
[(match_parallel 0 "nds32_store_multiple_operation"
[(set (mem:SI (match_operand:SI 1 "register_operand" "r"))
(match_operand:SI 2 "register_operand" ""))
(set (mem:SI (plus:SI (match_dup 1) (const_int 4)))
(match_operand:SI 3 "register_operand" ""))
(set (mem:SI (plus:SI (match_dup 1) (const_int 8)))
(match_operand:SI 4 "register_operand" ""))
(set (mem:SI (plus:SI (match_dup 1) (const_int 12)))
(match_operand:SI 5 "register_operand" ""))
(set (mem:SI (plus:SI (match_dup 1) (const_int 16)))
(match_operand:SI 6 "register_operand" ""))
(set (mem:SI (plus:SI (match_dup 1) (const_int 20)))
(match_operand:SI 7 "register_operand" ""))
(set (mem:SI (plus:SI (match_dup 1) (const_int 24)))
(match_operand:SI 8 "register_operand" ""))
(set (mem:SI (plus:SI (match_dup 1) (const_int 28)))
(match_operand:SI 9 "register_operand" ""))])]
"(XVECLEN (operands[0], 0) == 8)"
"smw.bi\t%2, [%1], %9, 0x0"
[(set_attr "type" "store")
(set_attr "length" "4")]
)
(define_insn "*stmsi7"
[(match_parallel 0 "nds32_store_multiple_operation"
[(set (mem:SI (match_operand:SI 1 "register_operand" "r"))
(match_operand:SI 2 "register_operand" ""))
(set (mem:SI (plus:SI (match_dup 1) (const_int 4)))
(match_operand:SI 3 "register_operand" ""))
(set (mem:SI (plus:SI (match_dup 1) (const_int 8)))
(match_operand:SI 4 "register_operand" ""))
(set (mem:SI (plus:SI (match_dup 1) (const_int 12)))
(match_operand:SI 5 "register_operand" ""))
(set (mem:SI (plus:SI (match_dup 1) (const_int 16)))
(match_operand:SI 6 "register_operand" ""))
(set (mem:SI (plus:SI (match_dup 1) (const_int 20)))
(match_operand:SI 7 "register_operand" ""))
(set (mem:SI (plus:SI (match_dup 1) (const_int 24)))
(match_operand:SI 8 "register_operand" ""))])]
"(XVECLEN (operands[0], 0) == 7)"
"smw.bi\t%2, [%1], %8, 0x0"
[(set_attr "type" "store")
(set_attr "length" "4")]
)
(define_insn "*stmsi6"
[(match_parallel 0 "nds32_store_multiple_operation"
[(set (mem:SI (match_operand:SI 1 "register_operand" "r"))
(match_operand:SI 2 "register_operand" ""))
(set (mem:SI (plus:SI (match_dup 1) (const_int 4)))
(match_operand:SI 3 "register_operand" ""))
(set (mem:SI (plus:SI (match_dup 1) (const_int 8)))
(match_operand:SI 4 "register_operand" ""))
(set (mem:SI (plus:SI (match_dup 1) (const_int 12)))
(match_operand:SI 5 "register_operand" ""))
(set (mem:SI (plus:SI (match_dup 1) (const_int 16)))
(match_operand:SI 6 "register_operand" ""))
(set (mem:SI (plus:SI (match_dup 1) (const_int 20)))
(match_operand:SI 7 "register_operand" ""))])]
"(XVECLEN (operands[0], 0) == 6)"
"smw.bi\t%2, [%1], %7, 0x0"
[(set_attr "type" "store")
(set_attr "length" "4")]
)
(define_insn "*stmsi5"
[(match_parallel 0 "nds32_store_multiple_operation"
[(set (mem:SI (match_operand:SI 1 "register_operand" "r"))
(match_operand:SI 2 "register_operand" ""))
(set (mem:SI (plus:SI (match_dup 1) (const_int 4)))
(match_operand:SI 3 "register_operand" ""))
(set (mem:SI (plus:SI (match_dup 1) (const_int 8)))
(match_operand:SI 4 "register_operand" ""))
(set (mem:SI (plus:SI (match_dup 1) (const_int 12)))
(match_operand:SI 5 "register_operand" ""))
(set (mem:SI (plus:SI (match_dup 1) (const_int 16)))
(match_operand:SI 6 "register_operand" ""))])]
"(XVECLEN (operands[0], 0) == 5)"
"smw.bi\t%2, [%1], %6, 0x0"
[(set_attr "type" "store")
(set_attr "length" "4")]
)
(define_insn "*stmsi4"
[(match_parallel 0 "nds32_store_multiple_operation"
[(set (mem:SI (match_operand:SI 1 "register_operand" "r"))
(match_operand:SI 2 "register_operand" ""))
(set (mem:SI (plus:SI (match_dup 1) (const_int 4)))
(match_operand:SI 3 "register_operand" ""))
(set (mem:SI (plus:SI (match_dup 1) (const_int 8)))
(match_operand:SI 4 "register_operand" ""))
(set (mem:SI (plus:SI (match_dup 1) (const_int 12)))
(match_operand:SI 5 "register_operand" ""))])]
"(XVECLEN (operands[0], 0) == 4)"
"smw.bi\t%2, [%1], %5, 0x0"
[(set_attr "type" "store")
(set_attr "length" "4")]
)
(define_insn "*stmsi3"
[(match_parallel 0 "nds32_store_multiple_operation"
[(set (mem:SI (match_operand:SI 1 "register_operand" "r"))
(match_operand:SI 2 "register_operand" ""))
(set (mem:SI (plus:SI (match_dup 1) (const_int 4)))
(match_operand:SI 3 "register_operand" ""))
(set (mem:SI (plus:SI (match_dup 1) (const_int 8)))
(match_operand:SI 4 "register_operand" ""))])]
"(XVECLEN (operands[0], 0) == 3)"
"smw.bi\t%2, [%1], %4, 0x0"
[(set_attr "type" "store")
(set_attr "length" "4")]
)
(define_insn "*stmsi2"
[(match_parallel 0 "nds32_store_multiple_operation"
[(set (mem:SI (match_operand:SI 1 "register_operand" "r"))
(match_operand:SI 2 "register_operand" ""))
(set (mem:SI (plus:SI (match_dup 1) (const_int 4)))
(match_operand:SI 3 "register_operand" ""))])]
"(XVECLEN (operands[0], 0) == 2)"
"smw.bi\t%2, [%1], %3, 0x0"
[(set_attr "type" "store")
(set_attr "length" "4")]
)
;; Move a block of memory if it is word aligned and MORE than 2 words long.
;; We could let this apply for blocks of less than this, but it clobbers so
;; many registers that there is then probably a better way.
;;
;; operands[0] is the destination block of memory.
;; operands[1] is the source block of memory.
;; operands[2] is the number of bytes to move.
;; operands[3] is the known shared alignment.
(define_expand "movmemqi"
[(match_operand:BLK 0 "general_operand" "")
(match_operand:BLK 1 "general_operand" "")
(match_operand:SI 2 "const_int_operand" "")
(match_operand:SI 3 "const_int_operand" "")]
""
{
if (nds32_expand_movmemqi (operands[0],
operands[1],
operands[2],
operands[3]))
DONE;
FAIL;
})
;; ------------------------------------------------------------------------
|
