1;; Constraint definitions for m68k
2;; Copyright (C) 2007-2018 Free Software Foundation, Inc.
3
4;; This file is part of GCC.
5
6;; GCC is free software; you can redistribute it and/or modify it
7;; under the terms of the GNU General Public License as published
8;; by the Free Software Foundation; either version 3, or (at your
9;; option) any later version.
10
11;; GCC is distributed in the hope that it will be useful, but WITHOUT
12;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
13;; or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
14;; License for more details.
15
16;; You should have received a copy of the GNU General Public License
17;; along with GCC; see the file COPYING3.  If not see
18;; <http://www.gnu.org/licenses/>.
19
20(define_register_constraint "a" "ADDR_REGS"
21  "Address register.")
22
23(define_register_constraint "d" "DATA_REGS"
24  "Data register.")
25
26(define_register_constraint "f" "TARGET_HARD_FLOAT ? FP_REGS : NO_REGS"
27  "Floating point register.")
28
29(define_constraint "I"
30  "Integer constant in the range 1 @dots 8, for immediate shift counts and addq."
31  (and (match_code "const_int")
32       (match_test "ival > 0 && ival <= 8")))
33
34(define_constraint "J"
35  "Signed 16-bit integer constant."
36  (and (match_code "const_int")
37       (match_test "ival >= -0x8000 && ival <= 0x7fff")))
38
39(define_constraint "K"
40  "Integer constant that moveq can't handle."
41  (and (match_code "const_int")
42       (match_test "ival < -0x80 || ival >= 0x80")))
43
44(define_constraint "L"
45  "Integer constant in the range -8 @dots -1, for subq."
46  (and (match_code "const_int")
47       (match_test "ival < 0 && ival >= -8")))
48
49(define_constraint "M"
50  "Integer constant that moveq+notb can't handle."
51  (and (match_code "const_int")
52       (match_test "ival < -0x100 || ival >= 0x100")))
53
54(define_constraint "N"
55  "Integer constant in the range 24 @dots 31, for rotatert:SI 8 to 1 expressed as rotate."
56  (and (match_code "const_int")
57       (match_test "ival >= 24 && ival <= 31")))
58
59(define_constraint "O"
60  "Integer constant 16, for rotate using swap."
61  (and (match_code "const_int")
62       (match_test "ival == 16")))
63
64(define_constraint "P"
65  "Integer constant in the range 8 @dots 15, for rotatert:HI 8 to 1 expressed as rotate."
66  (and (match_code "const_int")
67       (match_test "ival >= 8 && ival <= 15")))
68
69(define_constraint "R"
70  "Integer constant that mov3q can handle."
71  (and (match_code "const_int")
72       (match_test "valid_mov3q_const (ival)")))
73
74(define_constraint "G"
75  "Defines all of the floating constants that are *NOT* 68881
76   constants.  This is so 68881 constants get reloaded and the fpmovecr
77   is used."
78  (and (match_code "const_double")
79       (match_test "!(TARGET_68881 && standard_68881_constant_p (op))")))
80
81(define_constraint "H"
82  "Defines a real zero constant."
83  (and (match_code "const_double")
84       (match_test "op == CONST0_RTX (GET_MODE (op))")))
85
86(define_constraint "S"
87  "Used for operands that satisfy 'm' when -mpcrel is in effect."
88  (and (match_code "mem")
89       (match_test "TARGET_PCREL
90		    && (GET_CODE (XEXP (op, 0)) == SYMBOL_REF
91			|| GET_CODE (XEXP (op, 0)) == LABEL_REF
92			|| GET_CODE (XEXP (op, 0)) == CONST)")))
93
94(define_constraint "T"
95  "Used for operands that satisfy 's' when -mpcrel is not in effect."
96  (and (match_code "symbol_ref,label_ref,const")
97       (match_test "!TARGET_PCREL")
98       (match_test "!flag_pic || LEGITIMATE_PIC_OPERAND_P (op)")))
99
100(define_memory_constraint "Q"
101  "Means address register indirect addressing mode."
102  (and (match_code "mem")
103       (match_test "m68k_matches_q_p (op)")))
104
105(define_constraint "U"
106  "Used for register offset addressing."
107  (and (match_code "mem")
108       (match_test "m68k_matches_u_p (op)")))
109
110(define_constraint "W"
111  "Used for const_call_operands."
112  (match_operand 0 "const_call_operand"))
113
114(define_constraint "Cs"
115  "symbol_ref or const."
116  (match_code "symbol_ref,const"))
117
118(define_constraint "Ci"
119  "const_int."
120  (and (match_code "const_int")
121       (match_test "true")))
122
123(define_constraint "C0"
124  "const_int 0."
125  (and (match_code "const_int")
126       (match_test "ival == 0")))
127
128(define_constraint "Cj"
129  "Range of signed numbers that don't fit in 16 bits."
130  (and (match_code "const_int")
131       (match_test "ival < -0x8000 || ival > 0x7FFF")))
132
133(define_constraint "Cu"
134  "16-bit offset for wrapped symbols"
135  (and (match_code "const")
136       (match_test "m68k_unwrap_symbol (op, false) != op")))
137
138(define_constraint "CQ"
139  "Integers valid for mvq."
140  (and (match_code "const_int")
141       (match_test "m68k_const_method (ival) == MOVQ")))
142
143(define_constraint "CW"
144  "Integers valid for a moveq followed by a swap."
145  (and (match_code "const_int")
146       (match_test "m68k_const_method (ival) == SWAP")))
147
148(define_constraint "CZ"
149  "Integers valid for mvz."
150  (and (match_code "const_int")
151       (match_test "m68k_const_method (ival) == MVZ")))
152
153(define_constraint "CS"
154  "Integers valid for mvs."
155  (and (match_code "const_int")
156       (match_test "m68k_const_method (ival) == MVS")))
157
158(define_constraint "Ap"
159  "push_operand."
160  (match_operand 0 "push_operand"))
161
162(define_constraint "Ac"
163  "Non-register operands allowed in clr."
164  (and (match_operand 0 "movsi_const0_operand")
165       (match_test "!REG_P (op)")))
166