1 ;; Constraint definitions for Tilera TILE-Gx.
2 ;; Copyright (C) 2011-2016 Free Software Foundation, Inc.
3 ;; Contributed by Walter Lee (walt@tilera.com)
5 ;; This file is part of GCC.
7 ;; GCC is free software; you can redistribute it and/or modify it
8 ;; under the terms of the GNU General Public License as published
9 ;; by the Free Software Foundation; either version 3, or (at your
10 ;; option) any later version.
12 ;; GCC is distributed in the hope that it will be useful, but WITHOUT
13 ;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 ;; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
15 ;; License for more details.
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/>.
21 (define_register_constraint "R00" "R0_REGS" "r0")
22 (define_register_constraint "R01" "R1_REGS" "r1")
23 (define_register_constraint "R02" "R2_REGS" "r2")
24 (define_register_constraint "R03" "R3_REGS" "r3")
25 (define_register_constraint "R04" "R4_REGS" "r4")
26 (define_register_constraint "R05" "R5_REGS" "r5")
27 (define_register_constraint "R06" "R6_REGS" "r6")
28 (define_register_constraint "R07" "R7_REGS" "r7")
29 (define_register_constraint "R08" "R8_REGS" "r8")
30 (define_register_constraint "R09" "R9_REGS" "r9")
31 (define_register_constraint "R10" "R10_REGS" "r10")
33 (define_constraint "I"
34 "A signed 8 bit constant"
35 (and (match_code "const_int")
36 (match_test "ival >= -128 && ival <= 127")))
38 (define_constraint "J"
39 "Signed 16-bit integer constant"
40 (and (match_code "const_int")
41 (match_test "ival >= -32768 && ival <= 32767")))
43 (define_constraint "K"
44 "Unsigned 16-bit integer constant"
45 (and (match_code "const_int")
46 (match_test "(ival >= 0 && ival <= 65535)")))
48 (define_constraint "L"
49 "Integer constant that fits in one signed byte when incremented"
50 (and (match_code "const_int")
51 (match_test "ival >= -129 && ival <= 126")))
53 (define_constraint "M"
54 "A bit mask suitable for 'bfins'"
55 (and (match_code "const_int")
56 (match_test "tilegx_bitfield_operand_p (ival, NULL, NULL)")))
58 (define_constraint "N"
59 "Integer constant that is a byte tiled out eight times"
60 (and (match_code "const_int")
61 (match_test "(ival == (ival & 0xFF) * 0x0101010101010101LL)")))
63 (define_constraint "O"
64 "The integer zero constant"
65 (and (match_code "const_int")
66 (match_test "ival == 0")))
68 (define_constraint "P"
69 "Integer constant that is a sign-extended byte tiled out as four shorts"
70 (and (match_code "const_int")
72 == ((trunc_int_for_mode (ival, QImode) & 0xFFFF)
73 * 0x0001000100010001LL))")))
75 (define_constraint "Q"
76 "Integer constant that fits in one signed byte when incremented, but not -1"
77 (and (match_code "const_int")
78 (match_test "ival >= -129 && ival <= 126 && ival != -1")))
80 (define_constraint "S"
81 "Integer constant that has all 1 bits consecutive and starting at bit 0"
82 (and (match_code "const_int")
83 (match_test "ival != 0 && (ival & (ival + 1)) == 0")))
85 (define_constraint "T"
86 "An unspec wrapper for a symbolc operand"
87 (ior (match_operand 0 "const_last_symbolic_operand")
88 (match_operand 0 "const_symbolic_operand")))
90 (define_memory_constraint "U"
91 "Non-auto-incrementing memory"
92 (and (match_code "mem")
93 (match_test "GET_RTX_CLASS (GET_CODE (XEXP (op, 0))) != RTX_AUTOINC")))
95 (define_constraint "W"
96 "An 8-element vector constant with identical elements"
97 (and (match_code "const_vector")
98 (match_test "CONST_VECTOR_NUNITS (op) == 8")
99 (match_test "const_vec_duplicate_p (op)")))
101 (define_constraint "Y"
102 "A 4-element vector constant with identical elements"
103 (and (match_code "const_vector")
104 (match_test "CONST_VECTOR_NUNITS (op) == 4")
105 (match_test "const_vec_duplicate_p (op)")))
107 (define_constraint "Z0"
108 "The integer constant 0xffffffff"
109 (and (match_code "const_int")
110 (match_test "ival == 0xffffffff")))
112 (define_constraint "Z1"
113 "The integer constant 0xffffffff00000000"
114 (and (match_code "const_int")
115 (match_test "ival == (HOST_WIDE_INT)0xffffffff00000000LL")))