1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
|
/* Copyright (C) 2012-2014 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
/* This file contains the definitions and documentation for the
builtins defined in the AVR part of the GNU compiler.
Befor including this file, define a macro
DEF_BUILTIN(NAME, N_ARGS, TYPE, ICODE, LIBNAME)
NAME: `__builtin_avr_name' will be the user-level name of the builtin.
`AVR_BUILTIN_NAME' will be the internal builtin's id.
N_ARGS: Number of input arguments. If special treatment is needed,
set to -1 and handle it by hand, see avr.c:avr_expand_builtin().
TYPE: A tree node describing the prototype of the built-in.
ICODE: Name of attached insn or expander. If special treatment in avr.c
is needed to expand the built-in, use `nothing'.
LIBNAME: Name of the attached implementation in libgcc which is used if
the builtin cannot be folded away and there is no insn. */
/* Mapped to respective instruction. */
DEF_BUILTIN (NOP, -1, void_ftype_void, nothing, NULL)
DEF_BUILTIN (SEI, 0, void_ftype_void, enable_interrupt, NULL)
DEF_BUILTIN (CLI, 0, void_ftype_void, disable_interrupt, NULL)
DEF_BUILTIN (WDR, 0, void_ftype_void, wdr, NULL)
DEF_BUILTIN (SLEEP, 0, void_ftype_void, sleep, NULL)
/* Mapped to respective instruction but might also be folded away
or emit as libgcc call if ISA does not provide the instruction. */
DEF_BUILTIN (SWAP, 1, uchar_ftype_uchar, rotlqi3_4, NULL)
DEF_BUILTIN (FMUL, 2, uint_ftype_uchar_uchar, fmul, NULL)
DEF_BUILTIN (FMULS, 2, int_ftype_char_char, fmuls, NULL)
DEF_BUILTIN (FMULSU, 2, int_ftype_char_uchar, fmulsu, NULL)
/* More complex stuff that cannot be mapped 1:1 to an instruction. */
DEF_BUILTIN (DELAY_CYCLES, -1, void_ftype_ulong, nothing, NULL)
DEF_BUILTIN (INSERT_BITS, 3, uchar_ftype_ulong_uchar_uchar, insert_bits, NULL)
DEF_BUILTIN (FLASH_SEGMENT, 1, char_ftype_const_memx_ptr, flash_segment, NULL)
/* ISO/IEC TR 18037 "Embedded C"
The following builtins are undocumented and used by stdfix.h. */
/* 7.18a.6 The fixed-point intrinsic functions. */
/* 7.18a.6.2 The fixed-point absolute value functions. */
DEF_BUILTIN (ABSHR, 1, hr_ftype_hr, ssabsqq2, "__ssabs_1")
DEF_BUILTIN (ABSR, 1, nr_ftype_nr, ssabshq2, "__ssabs_2")
DEF_BUILTIN (ABSLR, 1, lr_ftype_lr, ssabssq2, "__ssabs_4")
DEF_BUILTIN (ABSLLR, -1, llr_ftype_llr, nothing, "__ssabsdq2") // GCC extension
DEF_BUILTIN (ABSHK, 1, hk_ftype_hk, ssabsha2, "__ssabs_2")
DEF_BUILTIN (ABSK, 1, nk_ftype_nk, ssabssa2, "__ssabs_4")
DEF_BUILTIN (ABSLK, -1, lk_ftype_lk, nothing, "__ssabsda2")
DEF_BUILTIN (ABSLLK, -1, llk_ftype_llk, nothing, "__ssabsta2") // GCC extension
/* 7.18a.6.3 The fixed-point round functions. */
DEF_BUILTIN (ROUNDHR, 2, hr_ftype_hr_int, roundqq3, "__roundhr")
DEF_BUILTIN (ROUNDR, 2, nr_ftype_nr_int, roundhq3, "__roundr")
DEF_BUILTIN (ROUNDLR, 2, lr_ftype_lr_int, roundsq3, "__roundlr")
DEF_BUILTIN (ROUNDLLR, -1, llr_ftype_llr_int, nothing, "__rounddq3") // GCC extension
DEF_BUILTIN (ROUNDUHR, 2, uhr_ftype_uhr_int, rounduqq3, "__rounduhr")
DEF_BUILTIN (ROUNDUR, 2, unr_ftype_unr_int, rounduhq3, "__roundur")
DEF_BUILTIN (ROUNDULR, 2, ulr_ftype_ulr_int, roundusq3, "__roundulr")
DEF_BUILTIN (ROUNDULLR, -1, ullr_ftype_ullr_int, nothing, "__roundudq3") // GCC extension
DEF_BUILTIN (ROUNDHK, 2, hk_ftype_hk_int, roundha3, "__roundhk")
DEF_BUILTIN (ROUNDK, 2, nk_ftype_nk_int, roundsa3, "__roundk")
DEF_BUILTIN (ROUNDLK, -1, lk_ftype_lk_int, nothing, "__roundda3")
DEF_BUILTIN (ROUNDLLK, -1, llk_ftype_llk_int, nothing, "__roundta3") // GCC extension
DEF_BUILTIN (ROUNDUHK, 2, uhk_ftype_uhk_int, rounduha3, "__rounduhk")
DEF_BUILTIN (ROUNDUK, 2, unk_ftype_unk_int, roundusa3, "__rounduk")
DEF_BUILTIN (ROUNDULK, -1, ulk_ftype_ulk_int, nothing, "__rounduda3")
DEF_BUILTIN (ROUNDULLK, -1, ullk_ftype_ullk_int, nothing, "__rounduta3") // GCC extension
/* 7.18a.6.4 The fixed-point bit countls functions. */
DEF_BUILTIN (COUNTLSHR, -1, int_ftype_hr, nothing, "__countlsqi2")
DEF_BUILTIN (COUNTLSR, -1, int_ftype_nr, nothing, "__countlshi2")
DEF_BUILTIN (COUNTLSLR, -1, int_ftype_lr, nothing, "__countlssi2")
DEF_BUILTIN (COUNTLSLLR, -1, int_ftype_llr, nothing, "__countlsdi2") // GCC extension
DEF_BUILTIN (COUNTLSUHR, -1, int_ftype_uhr, nothing, "__countlsuqi2")
DEF_BUILTIN (COUNTLSUR, -1, int_ftype_unr, nothing, "__countlsuhi2")
DEF_BUILTIN (COUNTLSULR, -1, int_ftype_ulr, nothing, "__countlsusi2")
DEF_BUILTIN (COUNTLSULLR, -1, int_ftype_ullr, nothing, "__countlsudi2") // GCC extension
DEF_BUILTIN (COUNTLSHK, -1, int_ftype_hk, nothing, "__countlshi2")
DEF_BUILTIN (COUNTLSK, -1, int_ftype_nk, nothing, "__countlssi2")
DEF_BUILTIN (COUNTLSLK, -1, int_ftype_lk, nothing, "__countlsdi2")
DEF_BUILTIN (COUNTLSLLK, -1, int_ftype_llk, nothing, "__countlsdi2") // GCC extension
DEF_BUILTIN (COUNTLSUHK, -1, int_ftype_uhk, nothing, "__countlsuhi2")
DEF_BUILTIN (COUNTLSUK, -1, int_ftype_unk, nothing, "__countlsusi2")
DEF_BUILTIN (COUNTLSULK, -1, int_ftype_ulk, nothing, "__countlsudi2")
DEF_BUILTIN (COUNTLSULLK, -1, int_ftype_ullk, nothing, "__countlsudi2") // GCC extension
/* 7.18a.6.5 The bitwise fixed-point to integer conversion functions. */
DEF_BUILTIN (BITSHR, -1, inthr_ftype_hr, nothing, "__ret")
DEF_BUILTIN (BITSR, -1, intnr_ftype_nr, nothing, "__ret")
DEF_BUILTIN (BITSLR, -1, intlr_ftype_lr, nothing, "__ret")
DEF_BUILTIN (BITSLLR, -1, intllr_ftype_llr, nothing, "__ret") // GCC extension
DEF_BUILTIN (BITSUHR, -1, intuhr_ftype_uhr, nothing, "__ret")
DEF_BUILTIN (BITSUR, -1, intunr_ftype_unr, nothing, "__ret")
DEF_BUILTIN (BITSULR, -1, intulr_ftype_ulr, nothing, "__ret")
DEF_BUILTIN (BITSULLR, -1, intullr_ftype_ullr, nothing, "__ret") // GCC extension
DEF_BUILTIN (BITSHK, -1, inthk_ftype_hk, nothing, "__ret")
DEF_BUILTIN (BITSK, -1, intnk_ftype_nk, nothing, "__ret")
DEF_BUILTIN (BITSLK, -1, intlk_ftype_lk, nothing, "__ret")
DEF_BUILTIN (BITSLLK, -1, intllk_ftype_llk, nothing, "__ret") // GCC extension
DEF_BUILTIN (BITSUHK, -1, intuhk_ftype_uhk, nothing, "__ret")
DEF_BUILTIN (BITSUK, -1, intunk_ftype_unk, nothing, "__ret")
DEF_BUILTIN (BITSULK, -1, intulk_ftype_ulk, nothing, "__ret")
DEF_BUILTIN (BITSULLK, -1, intullk_ftype_ullk, nothing, "__ret") // GCC extension
/* 7.18a.6.6 The bitwise integer to fixed-point conversion functions. */
DEF_BUILTIN ( HRBITS, -1, hr_ftype_inthr, nothing, "__ret")
DEF_BUILTIN ( RBITS, -1, nr_ftype_intnr, nothing, "__ret")
DEF_BUILTIN ( LRBITS, -1, lr_ftype_intlr, nothing, "__ret")
DEF_BUILTIN ( LLRBITS, -1, llr_ftype_intllr, nothing, "__ret") // GCC extension
DEF_BUILTIN ( UHRBITS, -1, uhr_ftype_intuhr, nothing, "__ret")
DEF_BUILTIN ( URBITS, -1, unr_ftype_intunr, nothing, "__ret")
DEF_BUILTIN ( ULRBITS, -1, ulr_ftype_intulr, nothing, "__ret")
DEF_BUILTIN (ULLRBITS, -1, ullr_ftype_intullr, nothing, "__ret") // GCC extension
DEF_BUILTIN ( HKBITS, -1, hk_ftype_inthk, nothing, "__ret")
DEF_BUILTIN ( KBITS, -1, nk_ftype_intnk, nothing, "__ret")
DEF_BUILTIN ( LKBITS, -1, lk_ftype_intlk, nothing, "__ret")
DEF_BUILTIN ( LLKBITS, -1, llk_ftype_intllk, nothing, "__ret") // GCC extension
DEF_BUILTIN ( UHKBITS, -1, uhk_ftype_intuhk, nothing, "__ret")
DEF_BUILTIN ( UKBITS, -1, unk_ftype_intunk, nothing, "__ret")
DEF_BUILTIN ( ULKBITS, -1, ulk_ftype_intulk, nothing, "__ret")
DEF_BUILTIN (ULLKBITS, -1, ullk_ftype_intullk, nothing, "__ret") // GCC extension
/* Overloaded */
/* 7.18a.6.7 Type-generic fixed-point functions. */
DEF_BUILTIN (ABSFX, -1, void_ftype_void /* dummy */, nothing, NULL)
DEF_BUILTIN (ROUNDFX, -1, void_ftype_void /* dummy */, nothing, NULL)
DEF_BUILTIN (COUNTLSFX, -1, void_ftype_void /* dummy */, nothing, NULL)
|
