| 1 | /* Unit tests for GIMPLE range related routines. |
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| 2 | Copyright (C) 2021-2023 Free Software Foundation, Inc. |
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| 3 | |
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| 4 | This file is part of GCC. |
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| 5 | |
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| 6 | GCC is free software; you can redistribute it and/or modify |
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| 7 | it under the terms of the GNU General Public License as published by |
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| 8 | the Free Software Foundation; either version 3, or (at your option) |
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| 9 | any later version. |
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| 10 | |
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| 11 | GCC is distributed in the hope that it will be useful, |
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| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 14 | GNU General Public License for more details. |
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| 15 | |
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| 16 | You should have received a copy of the GNU General Public License |
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| 17 | along with GCC; see the file COPYING3. If not see |
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| 18 | <http://www.gnu.org/licenses/>. */ |
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| 19 | |
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| 20 | #if CHECKING_P |
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| 21 | |
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| 22 | #include "selftest.h" |
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| 23 | |
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| 24 | namespace selftest { |
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| 25 | |
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| 26 | // Test ranges of tree expressions. |
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| 27 | class test_expr_eval : public gimple_ranger |
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| 28 | { |
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| 29 | public: |
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| 30 | test_expr_eval () |
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| 31 | { |
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| 32 | type = integer_type_node; |
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| 33 | op0 = make_ssa_name (var: type); |
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| 34 | op1 = make_ssa_name (var: type); |
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| 35 | |
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| 36 | // [5,10] + [15,20] => [20, 30] |
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| 37 | tree expr = fold_build2 (PLUS_EXPR, type, op0, op1); |
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| 38 | int_range<1> expect (type, |
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| 39 | wi::shwi (val: 20, TYPE_PRECISION (type)), |
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| 40 | wi::shwi (val: 30, TYPE_PRECISION (type))); |
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| 41 | int_range_max r; |
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| 42 | |
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| 43 | ASSERT_TRUE (range_of_expr (r, expr)); |
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| 44 | ASSERT_TRUE (r == expect); |
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| 45 | } |
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| 46 | |
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| 47 | virtual bool range_of_expr (vrange &v, tree expr, gimple * = NULL) override |
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| 48 | { |
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| 49 | irange &r = as_a <irange> (v); |
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| 50 | unsigned prec = TYPE_PRECISION (type); |
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| 51 | if (expr == op0) |
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| 52 | { |
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| 53 | r.set (type, wi::shwi (val: 5, precision: prec), wi::shwi (val: 10, precision: prec)); |
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| 54 | return true; |
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| 55 | } |
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| 56 | if (expr == op1) |
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| 57 | { |
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| 58 | r.set (type, wi::shwi (val: 15, precision: prec), wi::shwi (val: 20, precision: prec)); |
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| 59 | return true; |
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| 60 | } |
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| 61 | return gimple_ranger::range_of_expr (r, name: expr); |
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| 62 | } |
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| 63 | |
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| 64 | private: |
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| 65 | tree op0, op1, type; |
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| 66 | }; |
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| 67 | |
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| 68 | void |
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| 69 | gimple_range_tests () |
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| 70 | { |
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| 71 | test_expr_eval e; |
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| 72 | } |
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| 73 | |
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| 74 | } // namespace selftest |
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| 75 | |
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| 76 | #endif // CHECKING_P |
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| 77 | |
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