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Now that pointers and integers have been disambiguated from irange, and all the pointer range temporaries use prange, we can reclaim value_range as a general purpose range container. This patch removes the typedef, in favor of int_range_max, thus providing slightly better ranges in places. I have also used int_range<1> or <2> when it's known ahead of time how big the range will be, thus saving a few words. In a follow-up patch I will rename the Value_Range temporary to value_range. No change in performance. gcc/ChangeLog: * builtins.cc (expand_builtin_strnlen): Replace value_range use with int_range_max or irange when appropriate. (determine_block_size): Same. * fold-const.cc (minmax_from_comparison): Same. * gimple-array-bounds.cc (check_out_of_bounds_and_warn): Same. (array_bounds_checker::check_array_ref): Same. * gimple-fold.cc (size_must_be_zero_p): Same. * gimple-predicate-analysis.cc (find_var_cmp_const): Same. * gimple-ssa-sprintf.cc (get_int_range): Same. (format_integer): Same. (try_substitute_return_value): Same. (handle_printf_call): Same. * gimple-ssa-warn-restrict.cc (builtin_memref::extend_offset_range): Same. * graphite-sese-to-poly.cc (add_param_constraints): Same. * internal-fn.cc (get_min_precision): Same. * match.pd: Same. * pointer-query.cc (get_size_range): Same. * range-op.cc (get_shift_range): Same. (operator_trunc_mod::op1_range): Same. (operator_trunc_mod::op2_range): Same. * range.cc (range_negatives): Same. * range.h (range_positives): Same. (range_negatives): Same. * tree-affine.cc (expr_to_aff_combination): Same. * tree-data-ref.cc (compute_distributive_range): Same. (nop_conversion_for_offset_p): Same. (split_constant_offset): Same. (split_constant_offset_1): Same. (dr_step_indicator): Same. * tree-dfa.cc (get_ref_base_and_extent): Same. * tree-scalar-evolution.cc (iv_can_overflow_p): Same. * tree-ssa-math-opts.cc (optimize_spaceship): Same. * tree-ssa-pre.cc (insert_into_preds_of_block): Same. * tree-ssa-reassoc.cc (optimize_range_tests_to_bit_test): Same. * tree-ssa-strlen.cc (compare_nonzero_chars): Same. (dump_strlen_info): Same. (get_range_strlen_dynamic): Same. (set_strlen_range): Same. (maybe_diag_stxncpy_trunc): Same. (strlen_pass::get_len_or_size): Same. (strlen_pass::handle_builtin_string_cmp): Same. (strlen_pass::count_nonzero_bytes_addr): Same. (strlen_pass::handle_integral_assign): Same. * tree-switch-conversion.cc (bit_test_cluster::emit): Same. * tree-vect-loop-manip.cc (vect_gen_vector_loop_niters): Same. (vect_do_peeling): Same. * tree-vect-patterns.cc (vect_get_range_info): Same. (vect_recog_divmod_pattern): Same. * tree.cc (get_range_pos_neg): Same. * value-range.cc (debug): Remove value_range variants. * value-range.h (value_range): Remove typedef. * vr-values.cc (simplify_using_ranges::op_with_boolean_value_range_p): Replace value_range use with int_range_max or irange when appropriate. (check_for_binary_op_overflow): Same. (simplify_using_ranges::legacy_fold_cond_overflow): Same. (find_case_label_ranges): Same. (simplify_using_ranges::simplify_abs_using_ranges): Same. (test_for_singularity): Same. (simplify_using_ranges::simplify_compare_using_ranges_1): Same. (simplify_using_ranges::simplify_casted_compare): Same. (simplify_using_ranges::simplify_switch_using_ranges): Same. (simplify_conversion_using_ranges): Same. (simplify_using_ranges::two_valued_val_range_p): Same.
57 lines
1.6 KiB
C++
57 lines
1.6 KiB
C++
/* Header file for misc range functions. -*- C++ -*-
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Copyright (C) 2017-2024 Free Software Foundation, Inc.
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Contributed by Aldy Hernandez <aldyh@redhat.com>.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#ifndef GCC_RANGE_H
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#define GCC_RANGE_H
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int_range<2> range_positives (tree type);
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int_range<2> range_negatives (tree type);
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// Return an irange instance that is a boolean TRUE.
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inline int_range<1>
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range_true (tree type = boolean_type_node)
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{
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unsigned prec = TYPE_PRECISION (type);
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return int_range<1> (type, wi::one (prec), wi::one (prec));
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}
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// Return an irange instance that is a boolean FALSE.
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inline int_range<1>
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range_false (tree type = boolean_type_node)
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{
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unsigned prec = TYPE_PRECISION (type);
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return int_range<1> (type, wi::zero (prec), wi::zero (prec));
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}
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// Return an irange that covers both true and false.
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inline int_range<1>
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range_true_and_false (tree type = boolean_type_node)
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{
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unsigned prec = TYPE_PRECISION (type);
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if (prec == 1)
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return int_range<1> (type);
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return int_range<1> (type, wi::zero (prec), wi::one (prec));
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}
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#endif // GCC_RANGE_H
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