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e535b963 | 1 | /* Typedefs for polynomial integers used in GCC. |
a945c346 | 2 | Copyright (C) 2016-2024 Free Software Foundation, Inc. |
e535b963 RS |
3 | |
4 | This file is part of GCC. | |
5 | ||
6 | GCC is free software; you can redistribute it and/or modify it under | |
7 | the terms of the GNU General Public License as published by the Free | |
8 | Software Foundation; either version 3, or (at your option) any later | |
9 | version. | |
10 | ||
11 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
12 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
14 | 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 | ||
20 | #ifndef HAVE_POLY_INT_TYPES_H | |
21 | #define HAVE_POLY_INT_TYPES_H | |
22 | ||
e535b963 RS |
23 | typedef poly_int<NUM_POLY_INT_COEFFS, unsigned short> poly_uint16; |
24 | typedef poly_int<NUM_POLY_INT_COEFFS, HOST_WIDE_INT> poly_int64; | |
25 | typedef poly_int<NUM_POLY_INT_COEFFS, unsigned HOST_WIDE_INT> poly_uint64; | |
26 | typedef poly_int<NUM_POLY_INT_COEFFS, offset_int> poly_offset_int; | |
27 | typedef poly_int<NUM_POLY_INT_COEFFS, wide_int> poly_wide_int; | |
28 | typedef poly_int<NUM_POLY_INT_COEFFS, wide_int_ref> poly_wide_int_ref; | |
29 | typedef poly_int<NUM_POLY_INT_COEFFS, widest_int> poly_widest_int; | |
30 | ||
31 | /* Divide bit quantity X by BITS_PER_UNIT and round down (towards -Inf). | |
32 | If X is a bit size, this gives the number of whole bytes spanned by X. | |
33 | ||
34 | This is safe because non-constant mode sizes must be a whole number | |
35 | of bytes in size. */ | |
36 | #define bits_to_bytes_round_down(X) force_align_down_and_div (X, BITS_PER_UNIT) | |
37 | ||
38 | /* Divide bit quantity X by BITS_PER_UNIT and round up (towards +Inf). | |
39 | If X is a bit size, this gives the number of whole or partial bytes | |
40 | spanned by X. | |
41 | ||
42 | This is safe because non-constant mode sizes must be a whole number | |
43 | of bytes in size. */ | |
44 | #define bits_to_bytes_round_up(X) force_align_up_and_div (X, BITS_PER_UNIT) | |
45 | ||
46 | /* Return the number of bits in bit quantity X that do not belong to | |
47 | whole bytes. This is equivalent to: | |
48 | ||
49 | X - bits_to_bytes_round_down (X) * BITS_PER_UNIT | |
50 | ||
51 | This is safe because non-constant mode sizes must be a whole number | |
52 | of bytes in size. */ | |
53 | #define num_trailing_bits(X) force_get_misalignment (X, BITS_PER_UNIT) | |
54 | ||
8a91d545 RS |
55 | /* Round bit quantity X down to the nearest byte boundary. |
56 | ||
57 | This is safe because non-constant mode sizes must be a whole number | |
58 | of bytes in size. */ | |
59 | #define round_down_to_byte_boundary(X) force_align_down (X, BITS_PER_UNIT) | |
60 | ||
61 | /* Round bit quantity X up the nearest byte boundary. | |
62 | ||
63 | This is safe because non-constant mode sizes must be a whole number | |
64 | of bytes in size. */ | |
65 | #define round_up_to_byte_boundary(X) force_align_up (X, BITS_PER_UNIT) | |
66 | ||
e535b963 RS |
67 | /* Return the size of an element in a vector of size SIZE, given that |
68 | the vector has NELTS elements. The return value is in the same units | |
69 | as SIZE (either bits or bytes). | |
70 | ||
71 | to_constant () is safe in this situation because vector elements are | |
72 | always constant-sized scalars. */ | |
73 | #define vector_element_size(SIZE, NELTS) \ | |
74 | (exact_div (SIZE, NELTS).to_constant ()) | |
75 | ||
abe93733 YY |
76 | /* Return the number of unroll times when a vector that has NELTS1 elements |
77 | is unrolled to vectors that have NELTS2 elements. | |
78 | ||
79 | to_constant () is safe in this situation because the multiples of the | |
80 | NELTS of two vectors are always constant-size scalars. */ | |
81 | #define vector_unroll_factor(NELTS1, NELTS2) \ | |
82 | (exact_div (NELTS1, NELTS2).to_constant ()) | |
83 | ||
e535b963 RS |
84 | /* Wrapper for poly_int arguments to target macros, so that if a target |
85 | doesn't need polynomial-sized modes, its header file can continue to | |
86 | treat the argument as a normal constant. This should go away once | |
87 | macros are moved to target hooks. It shouldn't be used in other | |
88 | contexts. */ | |
89 | #if NUM_POLY_INT_COEFFS == 1 | |
90 | #define MACRO_INT(X) ((X).to_constant ()) | |
91 | #else | |
92 | #define MACRO_INT(X) (X) | |
93 | #endif | |
94 | ||
95 | #endif |