1 ;; Machine Descriptions for R8C/M16C/M32C
2 ;; Copyright (C) 2005-2013 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 it
8 ;; under the terms of the GNU General Public License as published
9 ;; by the Free Software Foundation; either version 3, or (at your
10 ;; option) any later version.
12 ;; GCC is distributed in the hope that it will be useful, but WITHOUT
13 ;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 ;; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
15 ;; 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/>.
23 ; TRUE for any valid operand. We do this because general_operand
24 ; refuses to match volatile memory refs.
26 (define_predicate "m32c_any_operand"
27 (ior (match_operand 0 "general_operand")
28 (match_code "mem,const_int,const_double"))
30 return ! m32c_illegal_subreg_p (op);
34 ; Likewise for nonimmediate_operand.
36 (define_predicate "m32c_nonimmediate_operand"
37 (ior (match_operand 0 "nonimmediate_operand")
40 return ! m32c_illegal_subreg_p (op);
44 ; TRUE if the operand is a pseudo-register.
45 (define_predicate "m32c_pseudo"
46 (ior (and (match_code "reg")
47 (match_test "REGNO(op) >= FIRST_PSEUDO_REGISTER"))
48 (and (match_code "subreg")
49 (and (match_test "GET_CODE (XEXP (op, 0)) == REG")
50 (match_test "REGNO(XEXP (op,0)) >= FIRST_PSEUDO_REGISTER")))))
53 ; Returning true causes many predicates to NOT match. We allow
54 ; subregs for type changing, but not for size changing.
55 (define_predicate "m32c_wide_subreg"
56 (and (match_code "subreg")
57 (not (match_operand 0 "m32c_pseudo")))
59 unsigned int sizeo = GET_MODE_SIZE (GET_MODE (op));
60 unsigned int sizei = GET_MODE_SIZE (GET_MODE (XEXP (op, 0)));
61 sizeo = (sizeo + UNITS_PER_WORD - 1) / UNITS_PER_WORD;
62 sizei = (sizei + UNITS_PER_WORD - 1) / UNITS_PER_WORD;
63 return sizeo != sizei;
66 ; TRUE for r0 through r3, or a pseudo that reload could put in r0
67 ; through r3 (likewise for the next couple too)
68 (define_predicate "r0123_operand"
69 (ior (match_operand 0 "m32c_pseudo" "")
70 (and (match_code "reg")
71 (match_test "REGNO(op) <= R3_REGNO"))))
74 (define_predicate "m32c_r0_operand"
75 (ior (match_operand 0 "m32c_pseudo" "")
76 (and (match_code "reg")
77 (match_test "REGNO(op) == R0_REGNO"))))
80 (define_predicate "m32c_r1_operand"
81 (ior (match_operand 0 "m32c_pseudo" "")
82 (and (match_code "reg")
83 (match_test "REGNO(op) == R1_REGNO"))))
85 ; TRUE for HL_CLASS (r0 or r1)
86 (define_predicate "m32c_hl_operand"
87 (ior (match_operand 0 "m32c_pseudo" "")
88 (and (match_code "reg")
89 (match_test "REGNO(op) == R0_REGNO || REGNO(op) == R1_REGNO"))))
93 (define_predicate "m32c_r2_operand"
94 (ior (match_operand 0 "m32c_pseudo" "")
95 (and (match_code "reg")
96 (match_test "REGNO(op) == R2_REGNO"))))
99 (define_predicate "m32c_r3_operand"
100 (ior (match_operand 0 "m32c_pseudo" "")
101 (and (match_code "reg")
102 (match_test "REGNO(op) == R3_REGNO"))))
104 ; TRUE for any general operand except r2.
105 (define_predicate "m32c_notr2_operand"
106 (and (match_operand 0 "general_operand")
107 (ior (not (match_code "reg"))
108 (match_test "REGNO(op) != R2_REGNO"))))
110 ; TRUE for the stack pointer.
111 (define_predicate "m32c_sp_operand"
112 (ior (match_operand 0 "m32c_pseudo" "")
113 (and (match_code "reg")
114 (match_test "REGNO(op) == SP_REGNO"))))
116 ; TRUE for control registers.
117 (define_predicate "cr_operand"
119 "return (REGNO (op) >= SB_REGNO
120 && REGNO (op) <= FLG_REGNO);")
122 ; TRUE for $a0 or $a1.
123 (define_predicate "a_operand"
124 (and (match_code "reg")
125 (match_test "REGNO (op) == A0_REGNO || REGNO (op) == A1_REGNO")))
127 ; TRUE for $a0 or $a1 or a pseudo
128 (define_predicate "ap_operand"
129 (ior (match_operand 0 "m32c_pseudo" "")
130 (and (match_code "reg")
131 (match_test "REGNO (op) == A0_REGNO || REGNO (op) == A1_REGNO"))))
133 ; TRUE for r0 through r3, or a0 or a1.
134 (define_predicate "ra_operand"
135 (and (and (match_operand 0 "register_operand" "")
136 (not (match_operand 1 "cr_operand" "")))
137 (not (match_operand 2 "m32c_wide_subreg" ""))))
139 ; Likewise, plus TRUE for memory references.
140 (define_predicate "mra_operand"
141 (and (and (match_operand 0 "m32c_nonimmediate_operand" "")
142 (not (match_operand 1 "cr_operand" "")))
143 (not (match_operand 2 "m32c_wide_subreg" ""))))
145 ; Likewise, plus TRUE for subregs.
146 (define_predicate "mras_operand"
147 (and (match_operand 0 "nonimmediate_operand" "")
148 (not (match_operand 1 "cr_operand" ""))))
150 ; As above, but no push/pop operations
151 (define_predicate "mra_nopp_operand"
152 (match_operand 0 "mra_operand" "")
154 if (GET_CODE (op) == MEM
155 && (GET_CODE (XEXP (op, 0)) == PRE_DEC
156 || (GET_CODE (XEXP (op, 0)) == POST_INC)))
161 ; TRUE for memory, r0..r3, a0..a1, or immediates.
162 (define_predicate "mrai_operand"
163 (and (and (match_operand 0 "m32c_any_operand" "")
164 (not (match_operand 1 "cr_operand" "")))
165 (not (match_operand 2 "m32c_wide_subreg" ""))))
167 ; Likewise, plus true for subregs.
168 (define_predicate "mrasi_operand"
169 (and (match_operand 0 "general_operand" "")
170 (not (match_operand 1 "cr_operand" ""))))
172 ; TRUE for r0..r3 or memory.
173 (define_predicate "mr_operand"
174 (and (match_operand 0 "mra_operand" "")
175 (not (match_operand 1 "a_operand" ""))))
177 ; TRUE for a0..a1 or memory.
178 (define_predicate "ma_operand"
179 (ior (match_operand 0 "a_operand" "")
180 (match_operand 1 "memory_operand" "")))
182 ; TRUE for memory operands that are not indexed
183 (define_predicate "memsym_operand"
184 (and (match_operand 0 "memory_operand" "")
185 (match_test "satisfies_constraint_Si (op)")))
187 ; TRUE for memory operands with small integer addresses
188 (define_predicate "memimmed_operand"
189 (and (match_operand 0 "memory_operand" "")
190 (match_test "satisfies_constraint_Sp (op)")))
192 ; TRUE for r1h. This is complicated since r1h isn't a register GCC
193 ; normally knows about.
194 (define_predicate "r1h_operand"
195 (match_code "zero_extract")
197 rtx reg = XEXP (op, 0);
198 rtx size = XEXP (op, 1);
199 rtx pos = XEXP (op, 2);
200 return (GET_CODE (reg) == REG
201 && REGNO (reg) == R1_REGNO
202 && GET_CODE (size) == CONST_INT
203 && INTVAL (size) == 8
204 && GET_CODE (pos) == CONST_INT
205 && INTVAL (pos) == 8);
208 ; TRUE if we can shift by this amount. Constant shift counts have a
210 (define_predicate "shiftcount_operand"
211 (ior (match_operand 0 "mra_operand" "")
212 (and (match_operand 2 "const_int_operand" "")
213 (match_test "-8 <= INTVAL (op) && INTVAL (op) && INTVAL (op) <= 8"))))
214 (define_predicate "longshiftcount_operand"
215 (ior (match_operand 0 "mra_operand" "")
216 (and (match_operand 2 "const_int_operand" "")
217 (match_test "-32 <= INTVAL (op) && INTVAL (op) && INTVAL (op) <= 32"))))
219 ; TRUE for r0..r3, a0..a1, or sp.
220 (define_predicate "mra_or_sp_operand"
221 (and (ior (match_operand 0 "mra_operand")
222 (match_operand 1 "m32c_sp_operand"))
223 (not (match_operand 2 "m32c_wide_subreg" ""))))
227 (define_predicate "m32c_r2r3_operand"
228 (ior (and (match_code "reg")
229 (ior (match_test "REGNO(op) == R2_REGNO")
230 (match_test "REGNO(op) == R3_REGNO")))
231 (and (match_code "subreg")
232 (match_test "GET_CODE (XEXP (op, 0)) == REG && (REGNO (XEXP (op, 0)) == R2_REGNO || REGNO (XEXP (op, 0)) == R3_REGNO)"))))
234 ; Likewise, plus TRUE for a0..a1.
235 (define_predicate "m32c_r2r3a_operand"
236 (ior (match_operand 0 "m32c_r2r3_operand" "")
237 (match_operand 0 "a_operand" "")))
239 ; These two are only for movqi - no subreg limit
240 (define_predicate "mra_qi_operand"
241 (and (and (match_operand 0 "m32c_nonimmediate_operand" "")
242 (not (match_operand 1 "cr_operand" "")))
243 (not (match_operand 1 "m32c_r2r3a_operand" ""))))
245 (define_predicate "mrai_qi_operand"
246 (and (and (match_operand 0 "m32c_any_operand" "")
247 (not (match_operand 1 "cr_operand" "")))
248 (not (match_operand 1 "m32c_r2r3a_operand" ""))))
250 (define_predicate "a_qi_operand"
251 (ior (match_operand 0 "m32c_pseudo" "")
252 (match_operand 1 "a_operand" "")))
254 ; TRUE for comparisons we support.
255 (define_predicate "m32c_cmp_operator"
256 (match_code "eq,ne,gt,gtu,lt,ltu,ge,geu,le,leu"))
258 (define_predicate "m32c_eqne_operator"
259 (match_code "eq,ne"))
262 (define_predicate "m32c_mem0_operand"
263 (ior (match_operand 0 "m32c_pseudo" "")
264 (and (match_code "reg")
265 (match_test "REGNO(op) == MEM0_REGNO"))))
267 ; TRUE for things the call patterns can return.
268 (define_predicate "m32c_return_operand"
269 (ior (match_operand 0 "m32c_r0_operand")
270 (ior (match_operand 0 "m32c_mem0_operand")
271 (match_code "parallel"))))
273 ; TRUE for constants we can multiply pointers by
274 (define_predicate "m32c_psi_scale"
275 (and (match_operand 0 "const_int_operand")
276 (match_test "satisfies_constraint_Ilb (op)")))
278 ; TRUE for one bit set (bit) or clear (mask) out of N bits.
280 (define_predicate "m32c_1bit8_operand"
281 (and (match_operand 0 "const_int_operand")
282 (match_test "satisfies_constraint_Ilb (op)")))
284 (define_predicate "m32c_1bit16_operand"
285 (and (match_operand 0 "const_int_operand")
286 (match_test "satisfies_constraint_Ilw (op)")))
288 (define_predicate "m32c_1mask8_operand"
289 (and (match_operand 0 "const_int_operand")
290 (match_test "satisfies_constraint_ImB (op)")))
292 (define_predicate "m32c_1mask16_operand"
293 (and (match_operand 0 "const_int_operand")
294 (match_test "satisfies_constraint_Imw (op)")))