1;; Constraint definitions for V850.
2;; Copyright (C) 2011-2020 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
7;; it under the terms of the GNU General Public License as published by
8;; the Free Software Foundation; either version 3, or (at your option)
9;; any later version.
10;;
11;; GCC is distributed in the hope that it will be useful,
12;; but WITHOUT ANY WARRANTY; without even the implied warranty of
13;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14;; GNU General Public 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 "e" "EVEN_REGS"
21  "@internal")
22
23;; Integer constraints.
24(define_constraint "I"
25  "Integer constant 0."
26  (and (match_code "const_int")
27       (match_test "ival == 0")))
28
29(define_constraint "J"
30  "A signed 5-bit immediate."
31  (and (match_code "const_int")
32       (match_test "ival >= -16 && ival <= 15")))
33
34(define_constraint "K"
35  "A signed 16-bit immediate."
36  (and (match_code "const_int")
37       (match_test "ival >= -32768 && ival <= 32767")))
38
39(define_constraint "L"
40  "A valid constant for a movhi instruction."
41  (and (match_code "const_int")
42       (ior (match_test "(ival | 0x7fff0000) == 0x7fff0000")
43	    (match_test "(ival | 0x7fff0000) + 0x10000 == 0"))))
44
45(define_constraint "M"
46  "An unsigned 16-bit immediate."
47  (and (match_code "const_int")
48       (match_test "ival >= 0 && ival <= 65535")))
49
50(define_constraint "N"
51  "An unsigned 5-bit immediate in shift instructions."
52  (and (match_code "const_int")
53       (match_test "ival >= 0 && ival <= 31")))
54
55(define_constraint "O"
56  "A signed 9-bit immediate for word multiply instructions."
57  (and (match_code "const_int")
58       (match_test "ival >= -255 && ival <= 255")))
59
60(define_constraint "P"
61  "@internal"
62  (and (match_code "const_int")
63       (match_test "0")))
64
65;; Floating-point constraints.
66(define_constraint "G"
67  "A zero of some form."
68  (and (match_code "const_double")
69       (ior (match_test "GET_MODE_CLASS (mode) == MODE_FLOAT")
70	    (match_test "GET_MODE_CLASS (mode) == MODE_INT"))
71       (match_test "op == CONST0_RTX (mode)")))
72
73(define_constraint "H"
74  "@internal"
75  (and (match_code "const_double")
76       (match_test "0")))
77
78;;; Extra constraints.
79(define_memory_constraint "Q"
80  "A memory address that does not contain a symbol address."
81  (and (match_code "mem")
82       (match_test "ep_memory_operand (op, mode, FALSE)")))
83
84(define_constraint "R"
85  "@internal"
86  (match_test "special_symbolref_operand (op, VOIDmode)"))
87
88(define_constraint "S"
89  "@internal"
90  (and (match_code "symbol_ref")
91       (match_test "!SYMBOL_REF_ZDA_P (op)")))
92
93(define_constraint "T"
94  "@internal"
95  (match_test "ep_memory_operand (op, mode, TRUE)"))
96
97(define_constraint "U"
98  "@internal"
99  (ior (and (match_code "symbol_ref")
100	    (match_test "SYMBOL_REF_ZDA_P (op)"))
101       (and (match_code "const")
102	    (match_test "GET_CODE (XEXP (op, 0)) == PLUS")
103	    (match_test "GET_CODE (XEXP (XEXP (op, 0), 0)) == SYMBOL_REF")
104	    (match_test "SYMBOL_REF_ZDA_P (XEXP (XEXP (op, 0), 0))"))))
105
106(define_constraint "W"
107  "@internal"
108  (match_test "disp23_operand (op, VOIDmode)"))
109