1 /* LoongArch static properties.
2 Copyright (C) 2021-2023 Free Software Foundation, Inc.
3 Contributed by Loongson Ltd.
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 #include "loongarch-def.h"
22 #include "loongarch-str.h"
23
24 /* Default RTX cost initializer. */
25 #define COSTS_N_INSNS(N) ((N) * 4)
26 #define DEFAULT_COSTS \
27 .fp_add = COSTS_N_INSNS (1), \
28 .fp_mult_sf = COSTS_N_INSNS (2), \
29 .fp_mult_df = COSTS_N_INSNS (4), \
30 .fp_div_sf = COSTS_N_INSNS (6), \
31 .fp_div_df = COSTS_N_INSNS (8), \
32 .int_mult_si = COSTS_N_INSNS (1), \
33 .int_mult_di = COSTS_N_INSNS (1), \
34 .int_div_si = COSTS_N_INSNS (4), \
35 .int_div_di = COSTS_N_INSNS (6), \
36 .branch_cost = 2, \
37 .memory_latency = 4
38
39 /* CPU property tables. */
40 const char*
41 loongarch_cpu_strings[N_TUNE_TYPES] = {
42 [CPU_NATIVE] = STR_CPU_NATIVE,
43 [CPU_LOONGARCH64] = STR_CPU_LOONGARCH64,
44 [CPU_LA464] = STR_CPU_LA464,
45 };
46
47 struct loongarch_isa
48 loongarch_cpu_default_isa[N_ARCH_TYPES] = {
49 [CPU_LOONGARCH64] = {
50 .base = ISA_BASE_LA64V100,
51 .fpu = ISA_EXT_FPU64,
52 },
53 [CPU_LA464] = {
54 .base = ISA_BASE_LA64V100,
55 .fpu = ISA_EXT_FPU64,
56 },
57 };
58
59 struct loongarch_cache
60 loongarch_cpu_cache[N_TUNE_TYPES] = {
61 [CPU_LOONGARCH64] = {
62 .l1d_line_size = 64,
63 .l1d_size = 64,
64 .l2d_size = 256,
65 .simultaneous_prefetches = 4,
66 },
67 [CPU_LA464] = {
68 .l1d_line_size = 64,
69 .l1d_size = 64,
70 .l2d_size = 256,
71 .simultaneous_prefetches = 4,
72 },
73 };
74
75 /* The following properties cannot be looked up directly using "cpucfg".
76 So it is necessary to provide a default value for "unknown native"
77 tune targets (i.e. -mtune=native while PRID does not correspond to
78 any known "-mtune" type). */
79
80 struct loongarch_rtx_cost_data
81 loongarch_cpu_rtx_cost_data[N_TUNE_TYPES] = {
82 [CPU_NATIVE] = {
83 DEFAULT_COSTS
84 },
85 [CPU_LOONGARCH64] = {
86 DEFAULT_COSTS
87 },
88 [CPU_LA464] = {
89 DEFAULT_COSTS
90 },
91 };
92
93 /* RTX costs to use when optimizing for size. */
94 extern const struct loongarch_rtx_cost_data
95 loongarch_rtx_cost_optimize_size = {
96 .fp_add = 4,
97 .fp_mult_sf = 4,
98 .fp_mult_df = 4,
99 .fp_div_sf = 4,
100 .fp_div_df = 4,
101 .int_mult_si = 4,
102 .int_mult_di = 4,
103 .int_div_si = 4,
104 .int_div_di = 4,
105 .branch_cost = 2,
106 .memory_latency = 4,
107 };
108
109 int
110 loongarch_cpu_issue_rate[N_TUNE_TYPES] = {
111 [CPU_NATIVE] = 4,
112 [CPU_LOONGARCH64] = 4,
113 [CPU_LA464] = 4,
114 };
115
116 int
117 loongarch_cpu_multipass_dfa_lookahead[N_TUNE_TYPES] = {
118 [CPU_NATIVE] = 4,
119 [CPU_LOONGARCH64] = 4,
120 [CPU_LA464] = 4,
121 };
122
123 /* Wiring string definitions from loongarch-str.h to global arrays
124 with standard index values from loongarch-opts.h, so we can
125 print config-related messages and do ABI self-spec filtering
126 from the driver in a self-consistent manner. */
127
128 const char*
129 loongarch_isa_base_strings[N_ISA_BASE_TYPES] = {
130 [ISA_BASE_LA64V100] = STR_ISA_BASE_LA64V100,
131 };
132
133 const char*
134 loongarch_isa_ext_strings[N_ISA_EXT_TYPES] = {
135 [ISA_EXT_FPU64] = STR_ISA_EXT_FPU64,
136 [ISA_EXT_FPU32] = STR_ISA_EXT_FPU32,
137 [ISA_EXT_NOFPU] = STR_ISA_EXT_NOFPU,
138 };
139
140 const char*
141 loongarch_abi_base_strings[N_ABI_BASE_TYPES] = {
142 [ABI_BASE_LP64D] = STR_ABI_BASE_LP64D,
143 [ABI_BASE_LP64F] = STR_ABI_BASE_LP64F,
144 [ABI_BASE_LP64S] = STR_ABI_BASE_LP64S,
145 };
146
147 const char*
148 loongarch_abi_ext_strings[N_ABI_EXT_TYPES] = {
149 [ABI_EXT_BASE] = STR_ABI_EXT_BASE,
150 };
151
152 const char*
153 loongarch_cmodel_strings[] = {
154 [CMODEL_NORMAL] = STR_CMODEL_NORMAL,
155 [CMODEL_TINY] = STR_CMODEL_TINY,
156 [CMODEL_TINY_STATIC] = STR_CMODEL_TS,
157 [CMODEL_MEDIUM] = STR_CMODEL_MEDIUM,
158 [CMODEL_LARGE] = STR_CMODEL_LARGE,
159 [CMODEL_EXTREME] = STR_CMODEL_EXTREME,
160 };
161
162 const char*
163 loongarch_switch_strings[] = {
164 [SW_SOFT_FLOAT] = OPTSTR_SOFT_FLOAT,
165 [SW_SINGLE_FLOAT] = OPTSTR_SINGLE_FLOAT,
166 [SW_DOUBLE_FLOAT] = OPTSTR_DOUBLE_FLOAT,
167 };
168
169
170 /* ABI-related definitions. */
171 const struct loongarch_isa
172 abi_minimal_isa[N_ABI_BASE_TYPES][N_ABI_EXT_TYPES] = {
173 [ABI_BASE_LP64D] = {
174 [ABI_EXT_BASE] = {.base = ISA_BASE_LA64V100, .fpu = ISA_EXT_FPU64},
175 },
176 [ABI_BASE_LP64F] = {
177 [ABI_EXT_BASE] = {.base = ISA_BASE_LA64V100, .fpu = ISA_EXT_FPU32},
178 },
179 [ABI_BASE_LP64S] = {
180 [ABI_EXT_BASE] = {.base = ISA_BASE_LA64V100, .fpu = ISA_EXT_NOFPU},
181 },
182 };