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/* Typedefs for polynomial integers used in GCC.
Copyright (C) 2016-2018 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/>. */
#ifndef HAVE_POLY_INT_TYPES_H
#define HAVE_POLY_INT_TYPES_H
typedef poly_int_pod<NUM_POLY_INT_COEFFS, unsigned short> poly_uint16_pod;
typedef poly_int_pod<NUM_POLY_INT_COEFFS, HOST_WIDE_INT> poly_int64_pod;
typedef poly_int_pod<NUM_POLY_INT_COEFFS,
unsigned HOST_WIDE_INT> poly_uint64_pod;
typedef poly_int_pod<NUM_POLY_INT_COEFFS, offset_int> poly_offset_int_pod;
typedef poly_int_pod<NUM_POLY_INT_COEFFS, wide_int> poly_wide_int_pod;
typedef poly_int_pod<NUM_POLY_INT_COEFFS, widest_int> poly_widest_int_pod;
typedef poly_int<NUM_POLY_INT_COEFFS, unsigned short> poly_uint16;
typedef poly_int<NUM_POLY_INT_COEFFS, HOST_WIDE_INT> poly_int64;
typedef poly_int<NUM_POLY_INT_COEFFS, unsigned HOST_WIDE_INT> poly_uint64;
typedef poly_int<NUM_POLY_INT_COEFFS, offset_int> poly_offset_int;
typedef poly_int<NUM_POLY_INT_COEFFS, wide_int> poly_wide_int;
typedef poly_int<NUM_POLY_INT_COEFFS, wide_int_ref> poly_wide_int_ref;
typedef poly_int<NUM_POLY_INT_COEFFS, widest_int> poly_widest_int;
/* Divide bit quantity X by BITS_PER_UNIT and round down (towards -Inf).
If X is a bit size, this gives the number of whole bytes spanned by X.
This is safe because non-constant mode sizes must be a whole number
of bytes in size. */
#define bits_to_bytes_round_down(X) force_align_down_and_div (X, BITS_PER_UNIT)
/* Divide bit quantity X by BITS_PER_UNIT and round up (towards +Inf).
If X is a bit size, this gives the number of whole or partial bytes
spanned by X.
This is safe because non-constant mode sizes must be a whole number
of bytes in size. */
#define bits_to_bytes_round_up(X) force_align_up_and_div (X, BITS_PER_UNIT)
/* Return the number of bits in bit quantity X that do not belong to
whole bytes. This is equivalent to:
X - bits_to_bytes_round_down (X) * BITS_PER_UNIT
This is safe because non-constant mode sizes must be a whole number
of bytes in size. */
#define num_trailing_bits(X) force_get_misalignment (X, BITS_PER_UNIT)
/* Round bit quantity X down to the nearest byte boundary.
This is safe because non-constant mode sizes must be a whole number
of bytes in size. */
#define round_down_to_byte_boundary(X) force_align_down (X, BITS_PER_UNIT)
/* Round bit quantity X up the nearest byte boundary.
This is safe because non-constant mode sizes must be a whole number
of bytes in size. */
#define round_up_to_byte_boundary(X) force_align_up (X, BITS_PER_UNIT)
/* Return the size of an element in a vector of size SIZE, given that
the vector has NELTS elements. The return value is in the same units
as SIZE (either bits or bytes).
to_constant () is safe in this situation because vector elements are
always constant-sized scalars. */
#define vector_element_size(SIZE, NELTS) \
(exact_div (SIZE, NELTS).to_constant ())
/* Wrapper for poly_int arguments to target macros, so that if a target
doesn't need polynomial-sized modes, its header file can continue to
treat the argument as a normal constant. This should go away once
macros are moved to target hooks. It shouldn't be used in other
contexts. */
#if NUM_POLY_INT_COEFFS == 1
#define MACRO_INT(X) ((X).to_constant ())
#else
#define MACRO_INT(X) (X)
#endif
#endif