1 ;; Constraint definitions for GCN.
2 ;; Copyright (C) 2016-2019 Free Software Foundation, Inc.
4 ;; This file is part of GCC.
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)
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.
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/>.
20 (define_constraint "I"
21 "Inline integer constant"
22 (and (match_code "const_int")
23 (match_test "ival >= -16 && ival <= 64")))
25 (define_constraint "J"
26 "Signed integer 16-bit inline constant"
27 (and (match_code "const_int")
28 (match_test "((unsigned HOST_WIDE_INT) ival + 0x8000) < 0x10000")))
30 (define_constraint "Kf"
31 "Immeditate constant -1"
32 (and (match_code "const_int")
33 (match_test "ival == -1")))
35 (define_constraint "L"
36 "Unsigned integer 15-bit constant"
37 (and (match_code "const_int")
38 (match_test "((unsigned HOST_WIDE_INT) ival) < 0x8000")))
40 (define_constraint "A"
41 "Inline immediate parameter"
42 (and (match_code "const_int,const_double,const_vector")
43 (match_test "gcn_inline_constant_p (op)")))
45 (define_constraint "B"
46 "Immediate 32-bit parameter"
47 (and (match_code "const_int,const_double,const_vector")
48 (match_test "gcn_constant_p (op)")))
50 (define_constraint "C"
51 "Immediate 32-bit parameter zero-extended to 64-bits"
52 (and (match_code "const_int,const_double,const_vector")
53 (match_test "gcn_constant64_p (op)")))
55 (define_constraint "DA"
56 "Splittable inline immediate 64-bit parameter"
57 (and (match_code "const_int,const_double,const_vector")
58 (match_test "gcn_inline_constant64_p (op)")))
60 (define_constraint "DB"
61 "Splittable immediate 64-bit parameter"
62 (match_code "const_int,const_double,const_vector"))
64 (define_constraint "U"
66 (match_code "unspec"))
68 (define_constraint "Y"
69 "Symbol or label for relative calls"
70 (match_code "symbol_ref,label_ref"))
72 (define_register_constraint "v" "VGPR_REGS"
75 (define_register_constraint "Sg" "SGPR_REGS"
78 (define_register_constraint "SD" "SGPR_DST_REGS"
79 "registers useable as a destination of scalar operation")
81 (define_register_constraint "SS" "SGPR_SRC_REGS"
82 "registers useable as a source of scalar operation")
84 (define_register_constraint "Sm" "SGPR_MEM_SRC_REGS"
85 "registers useable as a source of scalar memory operation")
87 (define_register_constraint "Sv" "SGPR_VOP_SRC_REGS"
88 "registers useable as a source of VOP3A instruction")
90 (define_register_constraint "ca" "ALL_CONDITIONAL_REGS"
93 (define_register_constraint "cs" "SCC_CONDITIONAL_REG"
96 (define_register_constraint "cV" "VCC_CONDITIONAL_REG"
99 (define_register_constraint "e" "EXEC_MASK_REG"
102 (define_special_memory_constraint "RB"
103 "Buffer memory address to scratch memory."
104 (and (match_code "mem")
105 (match_test "AS_SCRATCH_P (MEM_ADDR_SPACE (op))")))
107 (define_special_memory_constraint "RF"
108 "Buffer memory address to flat memory."
109 (and (match_code "mem")
110 (match_test "AS_FLAT_P (MEM_ADDR_SPACE (op))
111 && gcn_flat_address_p (XEXP (op, 0), mode)")))
113 (define_special_memory_constraint "RS"
114 "Buffer memory address to scalar flat memory."
115 (and (match_code "mem")
116 (match_test "AS_SCALAR_FLAT_P (MEM_ADDR_SPACE (op))
117 && gcn_scalar_flat_mem_p (op)")))
119 (define_special_memory_constraint "RL"
120 "Buffer memory address to LDS memory."
121 (and (match_code "mem")
122 (match_test "AS_LDS_P (MEM_ADDR_SPACE (op))")))
124 (define_special_memory_constraint "RG"
125 "Buffer memory address to GDS memory."
126 (and (match_code "mem")
127 (match_test "AS_GDS_P (MEM_ADDR_SPACE (op))")))
129 (define_special_memory_constraint "RD"
130 "Buffer memory address to GDS or LDS memory."
131 (and (match_code "mem")
132 (ior (match_test "AS_GDS_P (MEM_ADDR_SPACE (op))")
133 (match_test "AS_LDS_P (MEM_ADDR_SPACE (op))"))))
135 (define_special_memory_constraint "RM"
136 "Memory address to global (main) memory."
137 (and (match_code "mem")
138 (match_test "AS_GLOBAL_P (MEM_ADDR_SPACE (op))
139 && gcn_global_address_p (XEXP (op, 0))")))