| /* Copyright 2016-2017 Tobias Grosser |
| * |
| * Use of this software is governed by the MIT license |
| * |
| * Written by Tobias Grosser, Weststrasse 47, CH-8003, Zurich |
| */ |
| |
| #ifndef IS_TRUE |
| #define IS_TRUE(b) (b) |
| #endif |
| |
| /* Test the pointer interface for interaction between isl C and C++ types. |
| * |
| * This tests: |
| * - construction from an isl C object |
| * - check that constructed objects are non-null |
| * - get a non-owned C pointer from an isl C++ object usable in __isl_keep |
| * methods |
| * - use copy to get an owned C pointer from an isl C++ object which is usable |
| * in __isl_take methods. Verify that the original C++ object retains a valid |
| * pointer. |
| * - use release to get an owned C pointer from an isl C++ object which is |
| * usable in __isl_take methods. Verify that the original C++ object gave up |
| * its pointer and now is null. |
| */ |
| void test_pointer(isl::ctx ctx) |
| { |
| isl_set *c_empty = isl_set_read_from_str(ctx.get(), "{ : false }"); |
| isl::set empty = isl::manage(c_empty); |
| assert(IS_TRUE(empty.is_empty())); |
| assert(isl_set_is_empty(empty.get())); |
| |
| assert(!empty.is_null()); |
| isl_set_free(empty.copy()); |
| assert(!empty.is_null()); |
| isl_set_free(empty.release()); |
| assert(empty.is_null()); |
| } |
| |
| /* Test that isl objects can be constructed. |
| * |
| * This tests: |
| * - construction of a null object |
| * - construction from a string |
| * - construction from an integer |
| * - static constructor without a parameter |
| * - conversion construction (implicit) |
| * - conversion construction (explicit) |
| * |
| * The tests to construct from integers and strings cover functionality that |
| * is also tested in the parameter type tests, but here we verify that |
| * multiple overloaded constructors are available and that overload resolution |
| * works as expected. |
| * |
| * Construction from an isl C pointer is tested in test_pointer. |
| */ |
| void test_constructors(isl::ctx ctx) |
| { |
| isl::val null; |
| assert(null.is_null()); |
| |
| isl::val zero_from_str = isl::val(ctx, "0"); |
| assert(IS_TRUE(zero_from_str.is_zero())); |
| |
| isl::val zero_int_con = isl::val(ctx, 0); |
| assert(IS_TRUE(zero_int_con.is_zero())); |
| |
| isl::val zero_static_con = isl::val::zero(ctx); |
| assert(IS_TRUE(zero_static_con.is_zero())); |
| |
| isl::basic_set bs(ctx, "{ [1] }"); |
| isl::set result(ctx, "{ [1] }"); |
| isl::set s = bs; |
| assert(IS_TRUE(s.is_equal(result))); |
| isl::set s2(bs); |
| assert(IS_TRUE(s.unite(s2).is_equal(result))); |
| } |
| |
| /* Test integer function parameters. |
| * |
| * Verify that extreme values and zero work. |
| */ |
| void test_parameters_int(isl::ctx ctx) |
| { |
| isl::val long_max_str(ctx, std::to_string(LONG_MAX)); |
| isl::val long_max_int(ctx, LONG_MAX); |
| assert(IS_TRUE(long_max_str.eq(long_max_int))); |
| |
| isl::val long_min_str(ctx, std::to_string(LONG_MIN)); |
| isl::val long_min_int(ctx, LONG_MIN); |
| assert(IS_TRUE(long_min_str.eq(long_min_int))); |
| |
| isl::val long_zero_str = isl::val(ctx, std::to_string(0)); |
| isl::val long_zero_int = isl::val(ctx, 0); |
| assert(IS_TRUE(long_zero_str.eq(long_zero_int))); |
| } |
| |
| /* Test isl objects parameters. |
| * |
| * Verify that isl objects can be passed as lvalue and rvalue parameters. |
| * Also verify that isl object parameters are automatically type converted if |
| * there is an inheritance relation. Finally, test function calls without |
| * any additional parameters, apart from the isl object on which |
| * the method is called. |
| */ |
| void test_parameters_obj(isl::ctx ctx) |
| { |
| isl::set a(ctx, "{ [0] }"); |
| isl::set b(ctx, "{ [1] }"); |
| isl::set c(ctx, "{ [2] }"); |
| isl::set expected(ctx, "{ [i] : 0 <= i <= 2 }"); |
| |
| isl::set tmp = a.unite(b); |
| isl::set res_lvalue_param = tmp.unite(c); |
| assert(IS_TRUE(res_lvalue_param.is_equal(expected))); |
| |
| isl::set res_rvalue_param = a.unite(b).unite(c); |
| assert(IS_TRUE(res_rvalue_param.is_equal(expected))); |
| |
| isl::basic_set a2(ctx, "{ [0] }"); |
| assert(IS_TRUE(a.is_equal(a2))); |
| |
| isl::val two(ctx, 2); |
| isl::val half(ctx, "1/2"); |
| isl::val res_only_this_param = two.inv(); |
| assert(IS_TRUE(res_only_this_param.eq(half))); |
| } |
| |
| /* Test different kinds of parameters to be passed to functions. |
| * |
| * This includes integer and isl C++ object parameters. |
| */ |
| void test_parameters(isl::ctx ctx) |
| { |
| test_parameters_int(ctx); |
| test_parameters_obj(ctx); |
| } |
| |
| /* Test that isl objects are returned correctly. |
| * |
| * This only tests that after combining two objects, the result is successfully |
| * returned. |
| */ |
| void test_return_obj(isl::ctx ctx) |
| { |
| isl::val one(ctx, "1"); |
| isl::val two(ctx, "2"); |
| isl::val three(ctx, "3"); |
| |
| isl::val res = one.add(two); |
| |
| assert(IS_TRUE(res.eq(three))); |
| } |
| |
| /* Test that integer values are returned correctly. |
| */ |
| void test_return_int(isl::ctx ctx) |
| { |
| isl::val one(ctx, "1"); |
| isl::val neg_one(ctx, "-1"); |
| isl::val zero(ctx, "0"); |
| |
| assert(one.sgn() > 0); |
| assert(neg_one.sgn() < 0); |
| assert(zero.sgn() == 0); |
| } |
| |
| /* Test that strings are returned correctly. |
| * Do so by calling overloaded isl::ast_build::from_expr methods. |
| */ |
| void test_return_string(isl::ctx ctx) |
| { |
| isl::set context(ctx, "[n] -> { : }"); |
| isl::ast_build build = isl::ast_build::from_context(context); |
| isl::pw_aff pw_aff(ctx, "[n] -> { [n] }"); |
| isl::set set(ctx, "[n] -> { : n >= 0 }"); |
| |
| isl::ast_expr expr = build.expr_from(pw_aff); |
| const char *expected_string = "n"; |
| assert(expected_string == expr.to_C_str()); |
| |
| expr = build.expr_from(set); |
| expected_string = "n >= 0"; |
| assert(expected_string == expr.to_C_str()); |
| } |