| // Copyright 2023 The Tint Authors. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include "gmock/gmock.h" |
| #include "gtest/gtest-spi.h" |
| #include "src/tint/lang/core/ir/builder.h" |
| #include "src/tint/lang/core/ir/constant.h" |
| #include "src/tint/lang/core/ir/instruction.h" |
| #include "src/tint/lang/core/ir/ir_test_helper.h" |
| |
| namespace tint::ir { |
| namespace { |
| |
| using namespace tint::number_suffixes; // NOLINT |
| |
| using IR_BitcastTest = IRTestHelper; |
| |
| TEST_F(IR_BitcastTest, Bitcast) { |
| auto* inst = b.Bitcast(mod.Types().i32(), 4_i); |
| |
| ASSERT_TRUE(inst->Is<ir::Bitcast>()); |
| ASSERT_NE(inst->Result()->Type(), nullptr); |
| |
| auto args = inst->Args(); |
| ASSERT_EQ(args.Length(), 1u); |
| ASSERT_TRUE(args[0]->Is<Constant>()); |
| auto val = args[0]->As<Constant>()->Value(); |
| ASSERT_TRUE(val->Is<constant::Scalar<i32>>()); |
| EXPECT_EQ(4_i, val->As<constant::Scalar<i32>>()->ValueAs<i32>()); |
| } |
| |
| TEST_F(IR_BitcastTest, Result) { |
| auto* a = b.Bitcast(mod.Types().i32(), 4_i); |
| |
| EXPECT_TRUE(a->HasResults()); |
| EXPECT_FALSE(a->HasMultiResults()); |
| EXPECT_TRUE(a->Result()->Is<InstructionResult>()); |
| EXPECT_EQ(a, a->Result()->Source()); |
| } |
| |
| TEST_F(IR_BitcastTest, Bitcast_Usage) { |
| auto* inst = b.Bitcast(mod.Types().i32(), 4_i); |
| |
| auto args = inst->Args(); |
| ASSERT_EQ(args.Length(), 1u); |
| ASSERT_NE(args[0], nullptr); |
| EXPECT_THAT(args[0]->Usages(), testing::UnorderedElementsAre(Usage{inst, 0u})); |
| } |
| |
| TEST_F(IR_BitcastTest, Fail_NullType) { |
| EXPECT_FATAL_FAILURE( |
| { |
| Module mod; |
| Builder b{mod}; |
| b.Bitcast(nullptr, 1_i); |
| }, |
| ""); |
| } |
| |
| } // namespace |
| } // namespace tint::ir |