1 /* LoongArch-specific code for C family languages.
2 Copyright (C) 2021-2022 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 #define IN_TARGET_CODE 1
22
23 #include "config.h"
24 #include "system.h"
25 #include "coretypes.h"
26 #include "tm.h"
27 #include "c-family/c-common.h"
28 #include "cpplib.h"
29
30 #define preprocessing_asm_p() (cpp_get_options (pfile)->lang == CLK_ASM)
31 #define builtin_define(TXT) cpp_define (pfile, TXT)
32 #define builtin_assert(TXT) cpp_assert (pfile, TXT)
33
34 /* Define preprocessor macros for the -march and -mtune options.
35 PREFIX is either _LOONGARCH_ARCH or _LOONGARCH_TUNE, INFO is
36 the selected processor. If INFO's canonical name is "foo",
37 define PREFIX to be "foo", and define an additional macro
38 PREFIX_FOO. */
39 #define LARCH_CPP_SET_PROCESSOR(PREFIX, CPU_TYPE) \
40 do \
41 { \
42 char *macro, *p; \
43 int cpu_type = (CPU_TYPE); \
44 \
45 macro = concat ((PREFIX), "_", \
46 loongarch_cpu_strings[cpu_type], NULL); \
47 for (p = macro; *p != 0; p++) \
48 *p = TOUPPER (*p); \
49 \
50 builtin_define (macro); \
51 builtin_define_with_value ((PREFIX), \
52 loongarch_cpu_strings[cpu_type], 1); \
53 free (macro); \
54 } \
55 while (0)
56
57 void
loongarch_cpu_cpp_builtins(cpp_reader * pfile)58 loongarch_cpu_cpp_builtins (cpp_reader *pfile)
59 {
60 builtin_assert ("machine=loongarch");
61 builtin_assert ("cpu=loongarch");
62 builtin_define ("__loongarch__");
63
64 LARCH_CPP_SET_PROCESSOR ("_LOONGARCH_ARCH", LARCH_ACTUAL_ARCH);
65 LARCH_CPP_SET_PROCESSOR ("_LOONGARCH_TUNE", LARCH_ACTUAL_TUNE);
66
67 /* Base architecture / ABI. */
68 if (TARGET_64BIT)
69 {
70 builtin_define ("__loongarch_grlen=64");
71 builtin_define ("__loongarch64");
72 }
73
74 if (TARGET_ABI_LP64)
75 {
76 builtin_define ("_ABILP64=3");
77 builtin_define ("_LOONGARCH_SIM=_ABILP64");
78 builtin_define ("__loongarch_lp64");
79 }
80
81 /* These defines reflect the ABI in use, not whether the
82 FPU is directly accessible. */
83 if (TARGET_DOUBLE_FLOAT_ABI)
84 builtin_define ("__loongarch_double_float=1");
85 else if (TARGET_SINGLE_FLOAT_ABI)
86 builtin_define ("__loongarch_single_float=1");
87
88 if (TARGET_DOUBLE_FLOAT_ABI || TARGET_SINGLE_FLOAT_ABI)
89 builtin_define ("__loongarch_hard_float=1");
90 else
91 builtin_define ("__loongarch_soft_float=1");
92
93
94 /* ISA Extensions. */
95 if (TARGET_DOUBLE_FLOAT)
96 builtin_define ("__loongarch_frlen=64");
97 else if (TARGET_SINGLE_FLOAT)
98 builtin_define ("__loongarch_frlen=32");
99 else
100 builtin_define ("__loongarch_frlen=0");
101
102 /* Native Data Sizes. */
103 builtin_define_with_int_value ("_LOONGARCH_SZINT", INT_TYPE_SIZE);
104 builtin_define_with_int_value ("_LOONGARCH_SZLONG", LONG_TYPE_SIZE);
105 builtin_define_with_int_value ("_LOONGARCH_SZPTR", POINTER_SIZE);
106 builtin_define_with_int_value ("_LOONGARCH_FPSET", 32);
107 builtin_define_with_int_value ("_LOONGARCH_SPFPSET", 32);
108
109 }
110