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comparison gcc/config/msp430/constraints.md @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
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children 84e7813d76e9
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68:561a7518be6b 111:04ced10e8804
1 ;; Machine Description for TI MSP43* processors
2 ;; Copyright (C) 2013-2017 Free Software Foundation, Inc.
3 ;; Contributed by Red Hat.
4
5 ;; This file is part of GCC.
6
7 ;; GCC is free software; you can redistribute it and/or modify
8 ;; it under the terms of the GNU General Public License as published by
9 ;; the Free Software Foundation; either version 3, or (at your option)
10 ;; any later version.
11
12 ;; GCC is distributed in the hope that it will be useful,
13 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
14 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 ;; GNU General Public License for more details.
16
17 ;; You should have received a copy of the GNU General Public License
18 ;; along with GCC; see the file COPYING3. If not see
19 ;; <http://www.gnu.org/licenses/>.
20
21 (define_register_constraint "R12" "R12_REGS"
22 "Register R12.")
23
24 (define_register_constraint "R13" "R13_REGS"
25 "Register R13.")
26
27 (define_constraint "K"
28 "Integer constant 1."
29 (and (match_code "const_int")
30 (match_test "IN_RANGE (ival, 1, 1)")))
31
32 (define_constraint "L"
33 "Integer constant -1^20..1^19."
34 (and (match_code "const_int")
35 (match_test "IN_RANGE (ival, HOST_WIDE_INT_M1U << 20, 1 << 19)")))
36
37 (define_constraint "M"
38 "Integer constant 1-4."
39 (and (match_code "const_int")
40 (match_test "IN_RANGE (ival, 1, 4)")))
41
42 (define_constraint "N"
43 "Integer constant 0-255."
44 (and (match_code "const_int")
45 (match_test "IN_RANGE (ival, 0, 255)")))
46
47 (define_constraint "O"
48 "Integer constant 256-65535."
49 (and (match_code "const_int")
50 (match_test "IN_RANGE (ival, 256, 65535)")))
51
52 ;; We do not allow arbitrary constants, eg symbols or labels,
53 ;; because their address may be above the 16-bit address limit
54 ;; supported by the offset used in the MOVA instruction.
55 (define_constraint "Ya"
56 "Memory reference, any type, but restricted range of constants"
57 (and (match_code "mem")
58 (ior (match_code "reg" "0")
59 (and (match_code "plus" "0")
60 (match_code "reg" "00")
61 (match_test ("CONST_INT_P (XEXP (XEXP (op, 0), 1))")))
62 (match_test "CONSTANT_P (XEXP (op, 0))")
63 )))
64
65 (define_constraint "Yl"
66 "Memory reference, labels only."
67 (and (match_code "mem")
68 (match_code "label_ref" "0")))
69
70
71 ;; These are memory references that are safe to use without the X suffix,
72 ;; because we know/assume they need not index across the 64k boundary.
73 (define_constraint "Ys"
74 "Memory reference, stack only."
75 (and (match_code "mem")
76 (ior
77 (and (match_code "plus" "0")
78 (and (match_code "reg" "00")
79 (match_test ("CONST_INT_P (XEXP (XEXP (op, 0), 1))"))
80 (match_test ("IN_RANGE (INTVAL (XEXP (XEXP (op, 0), 1)), HOST_WIDE_INT_M1U << 15, (1 << 15)-1)"))))
81 (match_code "reg" "0")
82 )))
83
84 (define_constraint "Yc"
85 "Memory reference, for CALL - we can't use SP."
86 (and (match_code "mem")
87 (match_code "mem" "0")
88 (not (ior
89 (and (match_code "plus" "00")
90 (and (match_code "reg" "000")
91 (match_test ("REGNO (XEXP (XEXP (op, 0), 0)) != SP_REGNO"))))
92 (and (match_code "reg" "0")
93 (match_test ("REGNO (XEXP (XEXP (op, 0), 0)) != SP_REGNO")))
94 ))))
95