/* 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 |