1 /* Unit tests for GIMPLE range related routines.
2 Copyright (C) 2021-2022 Free Software Foundation, Inc.
3
4 This file is part of GCC.
5
6 GCC is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3, or (at your option)
9 any later version.
10
11 GCC is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3. If not see
18 <http://www.gnu.org/licenses/>. */
19
20 #if CHECKING_P
21
22 #include "selftest.h"
23
24 namespace selftest {
25
26 // Test ranges of tree expressions.
27 class test_expr_eval : public gimple_ranger
28 {
29 public:
test_expr_eval()30 test_expr_eval ()
31 {
32 type = integer_type_node;
33 op0 = make_ssa_name (type);
34 op1 = make_ssa_name (type);
35
36 // [5,10] + [15,20] => [20, 30]
37 tree expr = fold_build2 (PLUS_EXPR, type, op0, op1);
38 int_range<2> expect (build_int_cst (type, 20), build_int_cst (type, 30));
39 int_range_max r;
40
41 ASSERT_TRUE (range_of_expr (r, expr));
42 ASSERT_TRUE (r == expect);
43 }
44
range_of_expr(irange & r,tree expr,gimple * =NULL)45 virtual bool range_of_expr (irange &r, tree expr, gimple * = NULL) OVERRIDE
46 {
47 if (expr == op0)
48 {
49 r.set (build_int_cst (type, 5), build_int_cst (type, 10));
50 return true;
51 }
52 if (expr == op1)
53 {
54 r.set (build_int_cst (type, 15), build_int_cst (type, 20));
55 return true;
56 }
57 return gimple_ranger::range_of_expr (r, expr);
58 }
59
60 private:
61 tree op0, op1, type;
62 };
63
64 void
gimple_range_tests()65 gimple_range_tests ()
66 {
67 test_expr_eval e;
68 }
69
70 } // namespace selftest
71
72 #endif // CHECKING_P
73