1;; Constraints for Vitesse IQ2000 processors
2;; Copyright (C) 2011-2016 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;; Register constraints.
21(define_register_constraint "b" "ALL_REGS"
22  "@internal")
23
24(define_register_constraint "d" "GR_REGS"
25  "@internal")
26
27(define_register_constraint "y" "GR_REGS"
28  "@internal")
29
30;; Integer constraints.
31(define_constraint "I"
32  "A 16-bit signed integer."
33  (and (match_code "const_int")
34       (match_test "IN_RANGE (ival, -32768, 32767)")))
35
36(define_constraint "J"
37  "Zero."
38  (and (match_code "const_int")
39       (match_test "ival == 0")))
40
41(define_constraint "K"
42  "A 16-bit unsigned integer"
43  (and (match_code "const_int")
44       (match_test "IN_RANGE (ival, 0, 65535)")))
45
46(define_constraint "L"
47  "A 32-bit constant whose bottom 16 bits are zero."
48  (and (match_code "const_int")
49      (ior (match_test "(ival | 0x7fff0000) == 0x7fff0000")
50	   (match_test "(ival | 0x7fff0000) + 0x10000 == 0"))))
51
52(define_constraint "M"
53  "Any constant not matched by 'I', 'K', or 'L'."
54  (and (match_code "const_int")
55       (match_test "!insn_const_int_ok_for_constraint (ival, CONSTRAINT_I)")
56       (match_test "!insn_const_int_ok_for_constraint (ival, CONSTRAINT_K)")
57       (match_test "!insn_const_int_ok_for_constraint (ival, CONSTRAINT_L)")))
58
59(define_constraint "N"
60  "Any constant whose lower or upper 16 bits are 0xffff."
61  (and (match_code "const_int")
62       (ior (match_test "(ival & 0xffff) == 0xffff")
63	    (match_test "(ival & 0xffff0000) == 0xffff0000"))))
64
65(define_constraint "O"
66  "A 5-bit signed integer."
67  (and (match_code "const_int")
68       (match_test "IN_RANGE (ival, -31, 31)")))
69
70;; Floating-point constraints.
71(define_constraint "G"
72  "Floating-point zero."
73  (and (match_code "const_double")
74       (match_test "op == CONST0_RTX (mode)")))
75
76;; Extra constraints.
77(define_constraint "R"
78  "A memory reference which takes one word for the instruction."
79  (match_test "simple_memory_operand (op, mode)"))
80