1 ;; Machine Description for Renesas RL78 processors
2 ;; Copyright (C) 2011-2013 Free Software Foundation, Inc.
3 ;; Contributed by Red Hat.
5 ;; This file is part of GCC.
7 ;; GCC is free software; you can redistribute it and/or modify
8 ;; it under the terms of the GNU General Public License as published by
9 ;; the Free Software Foundation; either version 3, or (at your option)
12 ;; GCC is distributed in the hope that it will be useful,
13 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
14 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 ;; GNU General Public License for more details.
17 ;; You should have received a copy of the GNU General Public License
18 ;; along with GCC; see the file COPYING3. If not see
19 ;; <http://www.gnu.org/licenses/>.
24 ; V X g i m n o p r s < >
37 ; E..H - float constants
40 ; a x b c d e h l w - 8-bit regs
41 ; A B D T S - 16-bit regs
42 ; R = all regular registers (A-L)
43 ; Y - any valid memory
44 ; Wxx - various memory addressing modes
46 ; v = virtual registers
47 ; Zxx = specific virtual registers
49 (define_constraint "Int8"
50 "Integer constant in the range 0 @dots{} 255."
51 (and (match_code "const_int")
52 (match_test "IN_RANGE (ival, 0, 255)")))
54 (define_constraint "Int3"
55 "Integer constant in the range 1 @dots{} 7."
56 (and (match_code "const_int")
57 (match_test "IN_RANGE (ival, 1, 7)")))
59 (define_constraint "J"
60 "Integer constant in the range -255 @dots{} 0"
61 (and (match_code "const_int")
62 (match_test "IN_RANGE (ival, -255, 0)")))
64 (define_constraint "K"
66 (and (match_code "const_int")
67 (match_test "IN_RANGE (ival, 1, 1)")))
69 (define_constraint "L"
70 "Integer constant -1."
71 (and (match_code "const_int")
72 (match_test "IN_RANGE (ival, -1, -1)")))
74 (define_constraint "M"
76 (and (match_code "const_int")
77 (match_test "IN_RANGE (ival, 0, 0)")))
79 (define_constraint "N"
81 (and (match_code "const_int")
82 (match_test "IN_RANGE (ival, 2, 2)")))
84 (define_constraint "O"
85 "Integer constant -2."
86 (and (match_code "const_int")
87 (match_test "IN_RANGE (ival, -2, -2)")))
89 (define_constraint "P"
90 "Integer constant 1..15"
91 (and (match_code "const_int")
92 (match_test "IN_RANGE (ival, 1, 15)")))
94 (define_register_constraint "R" "QI_REGS"
95 "@code{A} through @code{L} registers.")
97 (define_register_constraint "a" "AREG"
98 "The @code{A} register.")
100 (define_register_constraint "x" "XREG"
101 "The @code{X} register.")
103 (define_register_constraint "b" "BREG"
104 "The @code{B} register.")
106 (define_register_constraint "c" "CREG"
107 "The @code{C} register.")
109 (define_register_constraint "d" "DREG"
110 "The @code{D} register.")
112 (define_register_constraint "e" "EREG"
113 "The @code{E} register.")
115 (define_register_constraint "h" "HREG"
116 "The @code{H} register.")
118 (define_register_constraint "l" "LREG"
119 "The @code{L} register.")
121 (define_register_constraint "w" "PSWREG"
122 "The @code{PSW} register.")
124 (define_register_constraint "A" "AXREG"
125 "The @code{AX} register.")
127 (define_register_constraint "B" "BCREG"
128 "The @code{BC} register.")
130 (define_register_constraint "D" "DEREG"
131 "The @code{DE} register.")
133 ; because H + L = T, assuming A=1.
134 (define_register_constraint "T" "HLREG"
135 "The @code{HL} register.")
137 (define_register_constraint "S" "SPREG"
138 "The @code{SP} register.")
140 (define_register_constraint "v" "V_REGS"
141 "The virtual registers.")
143 (define_register_constraint "Z08W" "R8W_REGS"
144 "The R8 register, HImode.")
146 (define_register_constraint "Z10W" "R10W_REGS"
147 "The R10 register, HImode.")
149 (define_register_constraint "Zint" "INT_REGS"
150 "The interrupt registers.")
152 ; All the memory addressing schemes the RL78 supports
153 ; of the form W {register} {bytes of offset}
154 ; or W {register} {register}
157 (define_memory_constraint "Wab"
159 (and (match_code "mem")
160 (ior (match_test "CONSTANT_P (XEXP (op, 0))")
161 (match_test "GET_CODE (XEXP (op, 0)) == PLUS && GET_CODE (XEXP (XEXP (op, 0), 0)) == SYMBOL_REF"))
165 (define_memory_constraint "Wbc"
167 (and (match_code "mem")
169 (and (match_code "reg" "0")
170 (match_test "REGNO (XEXP (op, 0)) == BC_REG"))
171 (and (match_code "plus" "0")
172 (and (and (match_code "reg" "00")
173 (match_test "REGNO (XEXP (XEXP (op, 0), 0)) == BC_REG"))
174 (match_test "uword_operand (XEXP (XEXP (op, 0), 1), VOIDmode)"))))
178 (define_memory_constraint "Wde"
180 (and (match_code "mem")
181 (and (match_code "reg" "0")
182 (match_test "REGNO (XEXP (op, 0)) == DE_REG")))
185 (define_memory_constraint "Wca"
187 (and (match_code "mem")
188 (and (match_code "reg" "0")
189 (match_test "REGNO (XEXP (op, 0)) <= HL_REG")))
192 (define_memory_constraint "Wcv"
193 "[AX..HL,r8-r23] for calls"
194 (and (match_code "mem")
195 (and (match_code "reg" "0")
196 (match_test "REGNO (XEXP (op, 0)) < 24")))
199 (define_memory_constraint "Wd2"
201 (and (match_code "mem")
203 (and (match_code "reg" "0")
204 (match_test "REGNO (XEXP (op, 0)) == DE_REG"))
205 (and (match_code "plus" "0")
206 (and (and (match_code "reg" "00")
207 (match_test "REGNO (XEXP (XEXP (op, 0), 0)) == DE_REG"))
208 (match_test "uword_operand (XEXP (XEXP (op, 0), 1), VOIDmode)"))))
212 (define_memory_constraint "Whl"
214 (and (match_code "mem")
215 (and (match_code "reg" "0")
216 (match_test "REGNO (XEXP (op, 0)) == HL_REG")))
219 (define_memory_constraint "Wh1"
221 (and (match_code "mem")
222 (and (match_code "plus" "0")
223 (and (and (match_code "reg" "00")
224 (match_test "REGNO (XEXP (XEXP (op, 0), 0)) == HL_REG"))
225 (match_test "ubyte_operand (XEXP (XEXP (op, 0), 1), VOIDmode)"))))
228 (define_memory_constraint "Whb"
230 (and (match_code "mem")
231 (match_test "rl78_hl_b_c_addr_p (XEXP (op, 0))"))
234 (define_memory_constraint "Ws1"
236 (and (match_code "mem")
238 (and (match_code "reg" "0")
239 (match_test "REGNO (XEXP (op, 0)) == SP_REG"))
240 (and (match_code "plus" "0")
241 (and (and (match_code "reg" "00")
242 (match_test "REGNO (XEXP (XEXP (op, 0), 0)) == SP_REG"))
243 (match_test "ubyte_operand (XEXP (XEXP (op, 0), 1), VOIDmode)"))))
247 (define_memory_constraint "Wfr"
249 (and (match_code "mem")
250 (match_test "rl78_far_p (op)"))
253 (define_memory_constraint "Y"
254 "any near legitimate memory access"
255 (and (match_code "mem")
256 (match_test "!rl78_far_p (op) && rl78_as_legitimate_address (VOIDmode, XEXP (op, 0), true, ADDR_SPACE_GENERIC)"))
260 (define_memory_constraint "Qbi"
261 "built-in compare types"
262 (match_code "eq,ne,gtu,ltu,geu,leu"))
264 (define_memory_constraint "Qsc"
266 (match_code "gt,lt,ge,le"))