Mercurial > hg > CbC > CbC_gcc
diff gcc/int-vector-builder.h @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
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date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | |
children | 1830386684a0 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gcc/int-vector-builder.h Thu Oct 25 07:37:49 2018 +0900 @@ -0,0 +1,90 @@ +/* A class for building vector integer constants. + Copyright (C) 2017-2018 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 GCC_INT_VECTOR_BUILDER_H +#define GCC_INT_VECTOR_BUILDER_H 1 + +#include "vector-builder.h" + +/* This class is used to build vectors of integer type T using the same + encoding as tree and rtx constants. See vector_builder for more + details. */ +template<typename T> +class int_vector_builder : public vector_builder<T, int_vector_builder<T> > +{ + typedef vector_builder<T, int_vector_builder> parent; + friend class vector_builder<T, int_vector_builder>; + +public: + int_vector_builder () {} + int_vector_builder (poly_uint64, unsigned int, unsigned int); + + using parent::new_vector; + +private: + bool equal_p (T, T) const; + bool allow_steps_p () const { return true; } + bool integral_p (T) const { return true; } + T step (T, T) const; + T apply_step (T, unsigned int, T) const; + bool can_elide_p (T) const { return true; } + void note_representative (T *, T) {} +}; + +/* Create a new builder for a vector with FULL_NELTS elements. + Initially encode the value as NPATTERNS interleaved patterns with + NELTS_PER_PATTERN elements each. */ + +template<typename T> +inline +int_vector_builder<T>::int_vector_builder (poly_uint64 full_nelts, + unsigned int npatterns, + unsigned int nelts_per_pattern) +{ + new_vector (full_nelts, npatterns, nelts_per_pattern); +} + +/* Return true if elements ELT1 and ELT2 are equal. */ + +template<typename T> +inline bool +int_vector_builder<T>::equal_p (T elt1, T elt2) const +{ + return known_eq (elt1, elt2); +} + +/* Return the value of element ELT2 minus the value of element ELT1. */ + +template<typename T> +inline T +int_vector_builder<T>::step (T elt1, T elt2) const +{ + return elt2 - elt1; +} + +/* Return a vector element with the value BASE + FACTOR * STEP. */ + +template<typename T> +inline T +int_vector_builder<T>::apply_step (T base, unsigned int factor, T step) const +{ + return base + factor * step; +} + +#endif