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b38bab94 1;; Constraint definitions for m68k
8d9254fc 2;; Copyright (C) 2007-2020 Free Software Foundation, Inc.
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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
2f83c7d6 8;; by the Free Software Foundation; either version 3, or (at your
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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
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17;; along with GCC; see the file COPYING3. If not see
18;; <http://www.gnu.org/licenses/>.
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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
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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
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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")
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97 (match_test "!TARGET_PCREL")
98 (match_test "!flag_pic || LEGITIMATE_PIC_OPERAND_P (op)")))
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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"))
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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
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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
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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)")))