blob: 91c5c4bd5ea4bbba6098bab1643682bad15f84d4 [file] [log] [blame] [edit]
// 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