|
111
|
1 /* Target-specific code for C family languages.
|
|
131
|
2 Copyright (C) 2015-2018 Free Software Foundation, Inc.
|
|
111
|
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
|
|
131
|
20 #define IN_TARGET_CODE 1
|
|
|
21
|
|
111
|
22 #include "config.h"
|
|
|
23 #include "system.h"
|
|
|
24 #include "coretypes.h"
|
|
|
25 #include "tm.h"
|
|
|
26 #include "input.h"
|
|
|
27 #include "memmodel.h"
|
|
|
28 #include "tm_p.h"
|
|
|
29 #include "flags.h"
|
|
|
30 #include "c-family/c-common.h"
|
|
|
31 #include "cpplib.h"
|
|
|
32 #include "c-family/c-pragma.h"
|
|
|
33 #include "langhooks.h"
|
|
|
34 #include "target.h"
|
|
|
35
|
|
|
36
|
|
|
37 #define builtin_define(TXT) cpp_define (pfile, TXT)
|
|
|
38 #define builtin_assert(TXT) cpp_assert (pfile, TXT)
|
|
|
39
|
|
|
40
|
|
|
41 static void
|
|
|
42 aarch64_def_or_undef (bool def_p, const char *macro, cpp_reader *pfile)
|
|
|
43 {
|
|
|
44 if (def_p)
|
|
|
45 cpp_define (pfile, macro);
|
|
|
46 else
|
|
|
47 cpp_undef (pfile, macro);
|
|
|
48 }
|
|
|
49
|
|
|
50 /* Define the macros that we always expect to have on AArch64. */
|
|
|
51
|
|
|
52 static void
|
|
|
53 aarch64_define_unconditional_macros (cpp_reader *pfile)
|
|
|
54 {
|
|
|
55 builtin_define ("__aarch64__");
|
|
|
56 builtin_define ("__ARM_64BIT_STATE");
|
|
|
57
|
|
|
58 builtin_define ("__ARM_ARCH_ISA_A64");
|
|
|
59 builtin_define_with_int_value ("__ARM_ALIGN_MAX_PWR", 28);
|
|
|
60 builtin_define_with_int_value ("__ARM_ALIGN_MAX_STACK_PWR", 16);
|
|
|
61
|
|
|
62 /* __ARM_ARCH_8A is not mandated by ACLE but we define it unconditionally
|
|
|
63 as interoperability with the same arm macro. */
|
|
|
64 builtin_define ("__ARM_ARCH_8A");
|
|
|
65
|
|
|
66 builtin_define_with_int_value ("__ARM_ARCH_PROFILE", 'A');
|
|
|
67 builtin_define ("__ARM_FEATURE_CLZ");
|
|
|
68 builtin_define ("__ARM_FEATURE_IDIV");
|
|
|
69 builtin_define ("__ARM_FEATURE_UNALIGNED");
|
|
|
70 builtin_define ("__ARM_PCS_AAPCS64");
|
|
|
71 builtin_define_with_int_value ("__ARM_SIZEOF_WCHAR_T", WCHAR_TYPE_SIZE / 8);
|
|
|
72 }
|
|
|
73
|
|
|
74 /* Undefine/redefine macros that depend on the current backend state and may
|
|
|
75 need to change when a target pragma modifies the backend state. */
|
|
|
76
|
|
|
77 static void
|
|
|
78 aarch64_update_cpp_builtins (cpp_reader *pfile)
|
|
|
79 {
|
|
|
80 aarch64_def_or_undef (flag_unsafe_math_optimizations, "__ARM_FP_FAST", pfile);
|
|
|
81
|
|
|
82 builtin_define_with_int_value ("__ARM_ARCH", aarch64_architecture_version);
|
|
|
83
|
|
|
84 builtin_define_with_int_value ("__ARM_SIZEOF_MINIMAL_ENUM",
|
|
|
85 flag_short_enums ? 1 : 4);
|
|
|
86 aarch64_def_or_undef (TARGET_BIG_END, "__AARCH64EB__", pfile);
|
|
|
87 aarch64_def_or_undef (TARGET_BIG_END, "__ARM_BIG_ENDIAN", pfile);
|
|
|
88 aarch64_def_or_undef (!TARGET_BIG_END, "__AARCH64EL__", pfile);
|
|
|
89
|
|
|
90 aarch64_def_or_undef (TARGET_FLOAT, "__ARM_FEATURE_FMA", pfile);
|
|
|
91
|
|
|
92 if (TARGET_FLOAT || TARGET_SIMD)
|
|
|
93 {
|
|
|
94 builtin_define_with_int_value ("__ARM_FP", 0x0E);
|
|
|
95 builtin_define ("__ARM_FP16_FORMAT_IEEE");
|
|
|
96 builtin_define ("__ARM_FP16_ARGS");
|
|
|
97 }
|
|
|
98 else
|
|
|
99 cpp_undef (pfile, "__ARM_FP");
|
|
|
100
|
|
|
101 aarch64_def_or_undef (TARGET_FP_F16INST,
|
|
|
102 "__ARM_FEATURE_FP16_SCALAR_ARITHMETIC", pfile);
|
|
|
103 aarch64_def_or_undef (TARGET_SIMD_F16INST,
|
|
|
104 "__ARM_FEATURE_FP16_VECTOR_ARITHMETIC", pfile);
|
|
|
105
|
|
|
106 aarch64_def_or_undef (TARGET_SIMD, "__ARM_FEATURE_NUMERIC_MAXMIN", pfile);
|
|
|
107 aarch64_def_or_undef (TARGET_SIMD, "__ARM_NEON", pfile);
|
|
|
108
|
|
|
109
|
|
|
110 aarch64_def_or_undef (TARGET_CRC32, "__ARM_FEATURE_CRC32", pfile);
|
|
|
111 aarch64_def_or_undef (TARGET_DOTPROD, "__ARM_FEATURE_DOTPROD", pfile);
|
|
|
112
|
|
|
113 cpp_undef (pfile, "__AARCH64_CMODEL_TINY__");
|
|
|
114 cpp_undef (pfile, "__AARCH64_CMODEL_SMALL__");
|
|
|
115 cpp_undef (pfile, "__AARCH64_CMODEL_LARGE__");
|
|
|
116
|
|
|
117 switch (aarch64_cmodel)
|
|
|
118 {
|
|
|
119 case AARCH64_CMODEL_TINY:
|
|
|
120 case AARCH64_CMODEL_TINY_PIC:
|
|
|
121 builtin_define ("__AARCH64_CMODEL_TINY__");
|
|
|
122 break;
|
|
|
123 case AARCH64_CMODEL_SMALL:
|
|
|
124 case AARCH64_CMODEL_SMALL_PIC:
|
|
|
125 builtin_define ("__AARCH64_CMODEL_SMALL__");
|
|
|
126 break;
|
|
|
127 case AARCH64_CMODEL_LARGE:
|
|
|
128 builtin_define ("__AARCH64_CMODEL_LARGE__");
|
|
|
129 break;
|
|
|
130 default:
|
|
|
131 break;
|
|
|
132 }
|
|
|
133
|
|
|
134 aarch64_def_or_undef (TARGET_ILP32, "_ILP32", pfile);
|
|
|
135 aarch64_def_or_undef (TARGET_ILP32, "__ILP32__", pfile);
|
|
|
136
|
|
|
137 aarch64_def_or_undef (TARGET_CRYPTO, "__ARM_FEATURE_CRYPTO", pfile);
|
|
|
138 aarch64_def_or_undef (TARGET_SIMD_RDMA, "__ARM_FEATURE_QRDMX", pfile);
|
|
131
|
139 aarch64_def_or_undef (TARGET_SVE, "__ARM_FEATURE_SVE", pfile);
|
|
|
140 cpp_undef (pfile, "__ARM_FEATURE_SVE_BITS");
|
|
|
141 if (TARGET_SVE)
|
|
|
142 {
|
|
|
143 int bits;
|
|
|
144 if (!BITS_PER_SVE_VECTOR.is_constant (&bits))
|
|
|
145 bits = 0;
|
|
|
146 builtin_define_with_int_value ("__ARM_FEATURE_SVE_BITS", bits);
|
|
|
147 }
|
|
|
148
|
|
|
149 aarch64_def_or_undef (TARGET_AES, "__ARM_FEATURE_AES", pfile);
|
|
|
150 aarch64_def_or_undef (TARGET_SHA2, "__ARM_FEATURE_SHA2", pfile);
|
|
|
151 aarch64_def_or_undef (TARGET_SHA3, "__ARM_FEATURE_SHA3", pfile);
|
|
|
152 aarch64_def_or_undef (TARGET_SHA3, "__ARM_FEATURE_SHA512", pfile);
|
|
|
153 aarch64_def_or_undef (TARGET_SM4, "__ARM_FEATURE_SM3", pfile);
|
|
|
154 aarch64_def_or_undef (TARGET_SM4, "__ARM_FEATURE_SM4", pfile);
|
|
|
155 aarch64_def_or_undef (TARGET_F16FML, "__ARM_FEATURE_FP16_FML", pfile);
|
|
111
|
156
|
|
|
157 /* Not for ACLE, but required to keep "float.h" correct if we switch
|
|
|
158 target between implementations that do or do not support ARMv8.2-A
|
|
|
159 16-bit floating-point extensions. */
|
|
|
160 cpp_undef (pfile, "__FLT_EVAL_METHOD__");
|
|
|
161 builtin_define_with_int_value ("__FLT_EVAL_METHOD__",
|
|
|
162 c_flt_eval_method (true));
|
|
|
163 cpp_undef (pfile, "__FLT_EVAL_METHOD_C99__");
|
|
|
164 builtin_define_with_int_value ("__FLT_EVAL_METHOD_C99__",
|
|
|
165 c_flt_eval_method (false));
|
|
|
166 }
|
|
|
167
|
|
|
168 /* Implement TARGET_CPU_CPP_BUILTINS. */
|
|
|
169
|
|
|
170 void
|
|
|
171 aarch64_cpu_cpp_builtins (cpp_reader *pfile)
|
|
|
172 {
|
|
|
173 aarch64_define_unconditional_macros (pfile);
|
|
|
174 aarch64_update_cpp_builtins (pfile);
|
|
|
175 }
|
|
|
176
|
|
|
177 /* Hook to validate the current #pragma GCC target and set the state, and
|
|
|
178 update the macros based on what was changed. If ARGS is NULL, then
|
|
|
179 POP_TARGET is used to reset the options. */
|
|
|
180
|
|
|
181 static bool
|
|
|
182 aarch64_pragma_target_parse (tree args, tree pop_target)
|
|
|
183 {
|
|
|
184 /* If args is not NULL then process it and setup the target-specific
|
|
|
185 information that it specifies. */
|
|
|
186 if (args)
|
|
|
187 {
|
|
131
|
188 if (!aarch64_process_target_attr (args))
|
|
111
|
189 return false;
|
|
|
190
|
|
|
191 aarch64_override_options_internal (&global_options);
|
|
|
192 }
|
|
|
193
|
|
|
194 /* args is NULL, restore to the state described in pop_target. */
|
|
|
195 else
|
|
|
196 {
|
|
|
197 pop_target = pop_target ? pop_target : target_option_default_node;
|
|
|
198 cl_target_option_restore (&global_options,
|
|
|
199 TREE_TARGET_OPTION (pop_target));
|
|
|
200 }
|
|
|
201
|
|
|
202 target_option_current_node
|
|
|
203 = build_target_option_node (&global_options);
|
|
|
204
|
|
|
205 aarch64_reset_previous_fndecl ();
|
|
|
206 /* For the definitions, ensure all newly defined macros are considered
|
|
|
207 as used for -Wunused-macros. There is no point warning about the
|
|
|
208 compiler predefined macros. */
|
|
|
209 cpp_options *cpp_opts = cpp_get_options (parse_in);
|
|
|
210 unsigned char saved_warn_unused_macros = cpp_opts->warn_unused_macros;
|
|
|
211 cpp_opts->warn_unused_macros = 0;
|
|
|
212
|
|
|
213 aarch64_update_cpp_builtins (parse_in);
|
|
|
214
|
|
|
215 cpp_opts->warn_unused_macros = saved_warn_unused_macros;
|
|
|
216
|
|
|
217 /* If we're popping or reseting make sure to update the globals so that
|
|
|
218 the optab availability predicates get recomputed. */
|
|
|
219 if (pop_target)
|
|
|
220 aarch64_save_restore_target_globals (pop_target);
|
|
|
221
|
|
|
222 /* Initialize SIMD builtins if we haven't already.
|
|
|
223 Set current_target_pragma to NULL for the duration so that
|
|
|
224 the builtin initialization code doesn't try to tag the functions
|
|
|
225 being built with the attributes specified by any current pragma, thus
|
|
|
226 going into an infinite recursion. */
|
|
|
227 if (TARGET_SIMD)
|
|
|
228 {
|
|
|
229 tree saved_current_target_pragma = current_target_pragma;
|
|
|
230 current_target_pragma = NULL;
|
|
|
231 aarch64_init_simd_builtins ();
|
|
|
232 current_target_pragma = saved_current_target_pragma;
|
|
|
233 }
|
|
|
234
|
|
|
235 return true;
|
|
|
236 }
|
|
|
237
|
|
|
238 /* Implement REGISTER_TARGET_PRAGMAS. */
|
|
|
239
|
|
|
240 void
|
|
|
241 aarch64_register_pragmas (void)
|
|
|
242 {
|
|
|
243 /* Update pragma hook to allow parsing #pragma GCC target. */
|
|
|
244 targetm.target_option.pragma_parse = aarch64_pragma_target_parse;
|
|
|
245 }
|
