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;; Machine Description for Renesas RL78 processors
;; Copyright (C) 2011 Free Software Foundation, Inc.
;; Contributed by Red Hat.
;; 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/>.
;; The insns in this file correspond to the actual opcodes the RL78
;; can issue with real registers. All insns in here should be
;; conditional on rl78_real_insns_ok() returning true, and should
;; allow virtual registers in their predicates - the reorg pass that
;; allocates physical registers uses the constraints to select
;; registers, but insns with virtual registers MUST match one of these
;; patterns - other than the constraints - so that the operand info is
;; properly set up for the alloc pass.
;;---------- Moving ------------------------
(define_insn "movqi_es"
[(set (reg:QI ES_REG)
(match_operand:QI 0 "register_operand" "a"))]
""
"mov\tes, %0"
)
(define_insn "movqi_cs"
[(set (reg:QI CS_REG)
(match_operand:QI 0 "register_operand" "a"))]
""
"mov\tcs, %0"
)
(define_insn "*movqi_real"
[(set (match_operand:QI 0 "nonimmediate_operand" "=g,RaxbcWab,RaxbcWab,a, bcx,R, WabWd2WhlWh1WhbWbcWs1v, bcx")
(match_operand 1 "general_operand" "0,K, M, RInt8sJvWabWdeWd2WhlWh1WhbWbcWs1,Wab,aInt8J,a, R"))]
"rl78_real_insns_ok ()"
"@
; mov\t%0, %1
oneb\t%0
clrb\t%0
mov\t%0, %1
mov\t%0, %1
mov\t%0, %1
mov\t%0, %1
mov\t%0, %S1"
)
(define_insn "*movhi_real"
[(set (match_operand:HI 0 "nonimmediate_operand" "=g,AB,AB,RSv,A,BDTvSWabWd2WdeWhlWh1WbcWs1, BDT,ABDT,v")
(match_operand:HI 1 "general_operand" " 0,K, M, i, BDTvSWabWd2WdeWh1WhlWbcWs1,A, BDT,vS, ABDT"))]
"rl78_real_insns_ok ()"
"@
; movw\t%0, %1
onew\t%0
clrw\t%0
movw\t%0, %1
movw\t%0, %1
movw\t%0, %1
movw\t%0, %S1
movw\t%0, %1
movw\t%0, %1"
)
;;---------- Conversions ------------------------
(define_insn "*zero_extendqihi2_real"
[(set (match_operand:HI 0 "nonimmediate_operand" "=rv,A")
(zero_extend:HI (match_operand:QI 1 "general_operand" "0,a")))]
"rl78_real_insns_ok ()"
"@
mov\t%Q0, #0
mov\tx, a \;mov\ta, #0"
)
(define_insn "*extendqihi2_real"
[(set (match_operand:HI 0 "nonimmediate_operand" "=A,A")
(sign_extend:HI (match_operand:QI 1 "general_operand" "x,a")))]
"rl78_real_insns_ok ()"
"@
shlw\t%0, 8 \;sarw\t%0, 8
sarw\t%0, 8"
)
;;---------- Arithmetic ------------------------
(define_insn "*addqi3_real"
[(set (match_operand:QI 0 "nonimmediate_operand" "=rvWabWhlWh1,rvWabWhlWh1,a,*bcdehl")
(plus:QI (match_operand:QI 1 "general_operand" "%0,0,0,0")
(match_operand:QI 2 "general_operand" "K,L,RWhlWh1i,a")))
]
"rl78_real_insns_ok ()"
"@
inc\t%0
dec\t%0
add\t%0, %2
add\t%0, %2"
)
(define_insn "*addhi3_real"
[(set (match_operand:HI 0 "nonimmediate_operand" "=vABDTWh1Wab,vABDTWh1Wab,v,v,A,S,S,A")
(plus:HI (match_operand:HI 1 "general_operand" "%0,0,0,0,0,0,0,S")
(match_operand:HI 2 "general_operand" "K,L,N,O,RWh1WhlWabiv,Int8,J,Ri")))
]
"rl78_real_insns_ok ()"
"@
incw\t%0
decw\t%0
incw\t%0 \;incw\t%0
decw\t%0 \;decw\t%0
addw\t%0, %p2
addw\t%0, %2
subw\t%0, %m2
movw\t%0, %1 \;addw\t%0, %2"
)
(define_insn "*addqihi3a_real"
[(set (match_operand:HI 0 "register_operand" "=r")
(plus:HI (zero_extend:HI (match_operand:QI 1 "register_operand" "%r"))
(match_operand:HI 2 "register_operand" "r")))
]
"rl78_real_insns_ok ()"
"add\t%q0, %q1 \;addc\t%Q0, #0"
)
(define_insn "*subqi3_real"
[(set (match_operand:QI 0 "nonimmediate_operand" "=a,R,v")
(minus:QI (match_operand:QI 1 "general_operand" "0,0,0")
(match_operand:QI 2 "general_operand" "RiWabWhbWh1Whl,a,i")))
]
"rl78_real_insns_ok ()"
"sub\t%0, %2"
)
(define_insn "*subhi3_real"
[(set (match_operand:HI 0 "nonimmediate_operand" "=A,S")
(minus:HI (match_operand:HI 1 "general_operand" "0,0")
(match_operand:HI 2 "general_operand" "iBDTWabWh1v,i")))
]
"rl78_real_insns_ok ()"
"subw\t%0, %2"
)
(define_insn "*umulhi3_shift_real"
[(set (match_operand:HI 0 "register_operand" "=A,A")
(mult:HI (match_operand:HI 1 "rl78_nonfar_operand" "0,0")
(match_operand:HI 2 "rl78_24_operand" "N,i")))]
"rl78_real_insns_ok ()"
"@
shlw\t%0, 1
shlw\t%0, 2"
)
(define_insn "*umulqihi3_real"
[(set (match_operand:HI 0 "nonimmediate_operand" "=A")
(mult:HI (zero_extend:HI (match_operand:QI 1 "general_operand" "%a"))
(zero_extend:HI (match_operand:QI 2 "general_operand" "x"))))]
"rl78_real_insns_ok ()"
"mulu\t%2"
)
(define_insn "*andqi3_real"
[(set (match_operand:QI 0 "nonimmediate_operand" "=A,R,v")
(and:QI (match_operand:QI 1 "general_operand" "%0,0,0")
(match_operand:QI 2 "general_operand" "iRvWabWhbWh1Whl,A,i")))
]
"rl78_real_insns_ok ()"
"and\t%0, %2"
)
(define_insn "*iorqi3_real"
[(set (match_operand:QI 0 "nonimmediate_operand" "=A,R,v")
(ior:QI (match_operand:QI 1 "general_operand" "%0,0,0")
(match_operand:QI 2 "general_operand" "iRvWabWhbWh1Whl,A,i")))
]
"rl78_real_insns_ok ()"
"or\t%0, %2"
)
(define_insn "*xorqi3_real"
[(set (match_operand:QI 0 "nonimmediate_operand" "=A,R,v")
(xor:QI (match_operand:QI 1 "general_operand" "%0,0,0")
(match_operand 2 "general_operand" "iRvWabWhbWh1Whl,A,i")))
]
"rl78_real_insns_ok ()"
"xor\t%0, %2"
)
;;---------- Shifts ------------------------
(define_insn "*ashlqi3_real"
[(set (match_operand:QI 0 "nonimmediate_operand" "=abc,a,a")
(ashift:QI (match_operand:QI 1 "general_operand" "0,0,0")
(match_operand:QI 2 "general_operand" "Int3,bc,dehl")))
]
"rl78_real_insns_ok ()"
"@
shl\t%0, %u2
cmp0 %2\; bz $2f\; 1: shl\t%0, 1 \;dec %2 \;bnz $1b\;2:
inc %2\;dec %2\;bz $2f\;1: shl\t%0, 1 \;dec %2 \;bnz $1b\;2:"
)
(define_insn "*ashlhi3_real"
[(set (match_operand:HI 0 "nonimmediate_operand" "=AB,A,A")
(ashift:HI (match_operand:HI 1 "general_operand" "0,0,0")
(match_operand:QI 2 "general_operand" "P,bc,dehl")))
]
"rl78_real_insns_ok ()"
"@
shlw\t%0, %u2
cmp0 %2\; bz $2f\; 1: shlw\t%0, 1 \;dec %2 \;bnz $1b\;2:
inc %2\;dec %2\;bz $2f\;1: shlw\t%0, 1 \;dec %2 \;bnz $1b\;2:"
)
;;----------
(define_insn "*ashrqi3_real"
[(set (match_operand:QI 0 "nonimmediate_operand" "=abc,a,a")
(ashiftrt:QI (match_operand:QI 1 "general_operand" "0,0,0")
(match_operand:QI 2 "general_operand" "Int3,bc,dehl")))
]
"rl78_real_insns_ok ()"
"@
sar\t%0, %u2
cmp0 %2\; bz $2f\; 1: sar\t%0, 1 \;dec %2 \;bnz $1b\;2:
inc %2\;dec %2\;bz $2f\;1: sar\t%0, 1\;dec %2 \;bnz $1b\;2:"
)
(define_insn "*ashrhi3_real"
[(set (match_operand:HI 0 "nonimmediate_operand" "=AB,A,A")
(ashiftrt:HI (match_operand:HI 1 "general_operand" "0,0,0")
(match_operand:QI 2 "general_operand" "P,bc,dehl")))
]
"rl78_real_insns_ok ()"
"@
sarw\t%0, %u2
cmp0 %2\; bz $2f\; 1: sarw\t%0, 1 \;dec %2 \;bnz $1b\;2:
inc %2\;dec %2\;bz $2f\;1: sarw\t%0, 1\;dec %2\;bnz $1b\;2:"
)
;;----------
(define_insn "*lshrqi3_real"
[(set (match_operand:QI 0 "nonimmediate_operand" "=abc,a,a")
(lshiftrt:QI (match_operand:QI 1 "general_operand" "0,0,0")
(match_operand:QI 2 "general_operand" "Int3,bc,dehl")))
]
"rl78_real_insns_ok ()"
"@
shr\t%0, %u2
cmp0 %2\; bz $2f\; 1: shr\t%0, 1 \;dec %2 \;bnz $1b\;2:
inc %2\;dec %2\;bz $2f\;1: shr\t%0, 1\;dec %2\;bnz $1b\;2:"
)
(define_insn "*lshrhi3_real"
[(set (match_operand:HI 0 "nonimmediate_operand" "=AB,A,A")
(lshiftrt:HI (match_operand:HI 1 "general_operand" "0,0,0")
(match_operand:QI 2 "general_operand" "P,bc,dehl")))
]
"rl78_real_insns_ok ()"
"@
shrw\t%0, %u2
cmp0 %2\; bz $2f\; 1: shrw\t%0, 1 \;dec %2 \;bnz $1b\;2:
inc %2\;dec %2\;bz $2f\;1: shrw\t%0, 1\;dec %2\;bnz $1b\;2:"
)
;;---------- Branching ------------------------
(define_insn "*indirect_jump_real"
[(set (pc)
(match_operand:HI 0 "nonimmediate_operand" "A"))]
"rl78_real_insns_ok ()"
"br\t%0"
)
(define_insn "jump"
[(set (pc)
(label_ref (match_operand 0 "" "")))]
""
;; $rel8, $!rel16, !abs16, !!abs20
"br\t!!%0"
)
(define_insn "*call_real"
[(call (match_operand:HI 0 "memory_operand" "Wab,Wca")
(match_operand 1 "" ""))]
"rl78_real_insns_ok ()"
"@
call\t!!%A0
call\t%A0"
)
(define_insn "*call_value_real"
[(set (match_operand 0 "register_operand" "=v,v")
(call (match_operand:HI 1 "memory_operand" "Wab,Wca")
(match_operand 2 "" "")))]
"rl78_real_insns_ok ()"
"@
call\t!!%A1
call\t%A1"
)
(define_insn "*cbranchqi4_real"
[(set (pc) (if_then_else
(match_operator 0 "rl78_cmp_operator_real"
[(match_operand:QI 1 "general_operand" "Wabvaxbc,a, v,bcdehl")
(match_operand:QI 2 "general_operand" "M, irWhlWh1Whb,i,a")])
(label_ref (match_operand 3 "" ""))
(pc)))]
"rl78_real_insns_ok ()"
"@
cmp0\t%1 \;sk%c0 \;br\t!!%3
cmp\t%1, %2 \;sk%c0 \;br\t!!%3
cmp\t%1, %2 \;sk%c0 \;br\t!!%3
cmp\t%1, %2 \;sk%c0 \;br\t!!%3"
)
(define_insn "*cbranchhi4_real"
[(set (pc) (if_then_else
(match_operator 0 "rl78_cmp_operator_real"
[(match_operand:HI 1 "general_operand" "A")
(match_operand:HI 2 "general_operand" "iBDTWhlWh1")])
(label_ref (match_operand 3 "" ""))
(pc)))]
"rl78_real_insns_ok ()"
"cmpw\t%1, %2 \;sk%c0 \;br\t!!%3"
)