| // 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 <sstream> |
| |
| #include "src/tint/ir/instruction.h" |
| #include "src/tint/ir/test_helper.h" |
| |
| namespace tint::ir { |
| namespace { |
| |
| using namespace tint::number_suffixes; // NOLINT |
| // |
| using IR_InstructionTest = TestHelper; |
| |
| TEST_F(IR_InstructionTest, Bitcast) { |
| auto& b = CreateEmptyBuilder(); |
| |
| b.builder.next_temp_id = Temp::Id(42); |
| const auto* instr = |
| b.builder.Bitcast(b.builder.ir.types.Get<type::I32>(), b.builder.Constant(4_i)); |
| |
| ASSERT_TRUE(instr->Result()->Is<Temp>()); |
| EXPECT_EQ(Temp::Id(42), instr->Result()->As<Temp>()->AsId()); |
| ASSERT_NE(instr->Result()->Type(), nullptr); |
| |
| ASSERT_TRUE(instr->Val()->Is<Constant>()); |
| auto val = instr->Val()->As<Constant>()->value; |
| ASSERT_TRUE(val->Is<constant::Scalar<i32>>()); |
| EXPECT_EQ(4_i, val->As<constant::Scalar<i32>>()->ValueAs<i32>()); |
| |
| std::stringstream str; |
| instr->ToString(str, program->Symbols()); |
| EXPECT_EQ(str.str(), "%42 (i32) = bitcast(4)"); |
| } |
| |
| TEST_F(IR_InstructionTest, Bitcast_Usage) { |
| auto& b = CreateEmptyBuilder(); |
| |
| b.builder.next_temp_id = Temp::Id(42); |
| const auto* instr = |
| b.builder.Bitcast(b.builder.ir.types.Get<type::I32>(), b.builder.Constant(4_i)); |
| |
| ASSERT_NE(instr->Result(), nullptr); |
| ASSERT_EQ(instr->Result()->Usage().Length(), 1); |
| EXPECT_EQ(instr->Result()->Usage()[0], instr); |
| |
| ASSERT_NE(instr->Val(), nullptr); |
| ASSERT_EQ(instr->Val()->Usage().Length(), 1); |
| EXPECT_EQ(instr->Val()->Usage()[0], instr); |
| } |
| |
| } // namespace |
| } // namespace tint::ir |