1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
|
;; Constraint definitions for DEC Alpha.
;; Copyright (C) 2007 Free Software Foundation, Inc.
;;
;; 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/>.
;;; Unused letters:
;;; ABCDEF V YZ
;;; de ghijklmnopq stu wxyz
;; Integer register constraints.
(define_register_constraint "a" "R24_REG"
"General register 24, input to division routine")
(define_register_constraint "b" "R25_REG"
"General register 24, input to division routine")
(define_register_constraint "c" "R27_REG"
"General register 27, function call address")
(define_register_constraint "f" "FLOAT_REGS"
"Any floating-point register")
(define_register_constraint "v" "R0_REG"
"General register 0, function value return address")
;; Integer constant constraints.
(define_constraint "I"
"An unsigned 8 bit constant"
(and (match_code "const_int")
(match_test "IN_RANGE (ival, 0, 255)")))
(define_constraint "J"
"The constant zero"
(and (match_code "const_int")
(match_test "ival == 0")))
(define_constraint "K"
"Signed 16-bit integer constant"
(and (match_code "const_int")
(match_test "IN_RANGE (ival, -32768, 32767)")))
(define_constraint "L"
"A shifted signed 16-bit constant appropriate for LDAH"
(and (match_code "const_int")
(match_test "(ival & 0xffff) == 0
&& (ival >> 31 == -1 || ival >> 31 == 0)")))
(define_constraint "M"
"A valid operand of a ZAP insn"
(and (match_code "const_int")
(match_test "zap_mask (ival) != 0")))
(define_constraint "N"
"A complemented unsigned 8-bit constant"
(and (match_code "const_int")
(match_test "IN_RANGE (~ival, 0, 255)")))
(define_constraint "O"
"A negated unsigned 8-bit constant"
(and (match_code "const_int")
(match_test "IN_RANGE (-ival, 0, 255)")))
(define_constraint "P"
"The constant 1, 2 or 3"
(and (match_code "const_int")
(match_test "ival == 1 || ival == 2 || ival == 3")))
(define_constraint "H"
"A valid operand of a ZAP insn, when building with 32-bit HOST_WIDE_INT"
(and (match_code "const_double")
(match_test "mode == VOIDmode && zap_mask (hval) && zap_mask (lval)")))
;; Floating-point constant constraints.
(define_constraint "G"
"The floating point zero constant"
(and (match_code "const_double")
(match_test "GET_MODE_CLASS (mode) == MODE_FLOAT
&& op == CONST0_RTX (mode)")))
;; "Extra" constraints.
(define_constraint "Q"
"@internal A normal_memory_operand"
(match_operand 0 "normal_memory_operand"))
(define_constraint "R"
"@internal A direct_call_operand"
(match_operand:DI 0 "direct_call_operand"))
(define_constraint "S"
"An unsigned 6-bit constant"
(and (match_code "const_int")
(match_test "IN_RANGE (ival, 0, 63)")))
(define_constraint "T"
"@internal A high-part symbol"
(match_code "high"))
(define_constraint "U"
"@internal A UNICOSMK symbol"
(and (match_test "TARGET_ABI_UNICOSMK")
(match_operand 0 "symbolic_operand")))
(define_constraint "W"
"A vector zero constant"
(and (match_code "const_vector")
(match_test "op == CONST0_RTX (mode)")))
|
