| /* Support routines for Value Range Propagation (VRP). |
| Copyright (C) 2016-2021 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_TREE_VRP_H |
| #define GCC_TREE_VRP_H |
| |
| #include "value-range.h" |
| |
| struct assert_info |
| { |
| /* Predicate code for the ASSERT_EXPR. Must be COMPARISON_CLASS_P. */ |
| enum tree_code comp_code; |
| |
| /* Name to register the assert for. */ |
| tree name; |
| |
| /* Value being compared against. */ |
| tree val; |
| |
| /* Expression to compare. */ |
| tree expr; |
| }; |
| |
| extern void register_edge_assert_for (tree, edge, enum tree_code, |
| tree, tree, vec<assert_info> &); |
| extern bool stmt_interesting_for_vrp (gimple *); |
| extern bool infer_value_range (gimple *, tree, tree_code *, tree *); |
| |
| extern bool range_int_cst_p (const value_range *); |
| |
| extern int compare_values (tree, tree); |
| extern int compare_values_warnv (tree, tree, bool *); |
| extern int operand_less_p (tree, tree); |
| |
| void range_fold_unary_expr (value_range *, enum tree_code, tree type, |
| const value_range *, tree op0_type); |
| void range_fold_binary_expr (value_range *, enum tree_code, tree type, |
| const value_range *, const value_range *); |
| |
| extern enum value_range_kind intersect_range_with_nonzero_bits |
| (enum value_range_kind, wide_int *, wide_int *, const wide_int &, signop); |
| |
| extern bool find_case_label_range (gswitch *, tree, tree, size_t *, size_t *); |
| extern tree find_case_label_range (gswitch *, const irange *vr); |
| extern bool find_case_label_index (gswitch *, size_t, tree, size_t *); |
| extern bool overflow_comparison_p (tree_code, tree, tree, bool, tree *); |
| extern tree get_single_symbol (tree, bool *, tree *); |
| extern void maybe_set_nonzero_bits (edge, tree); |
| extern value_range_kind determine_value_range (tree, wide_int *, wide_int *); |
| extern wide_int masked_increment (const wide_int &val_in, const wide_int &mask, |
| const wide_int &sgnbit, unsigned int prec); |
| |
| #endif /* GCC_TREE_VRP_H */ |