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7e8df044c6
Operand is just a tagged union of uint32_t, float and std::string. Use std::variant for this. Reduces memory size, and removes the need to always construct an empty string when the operand is float or int. Bug: tint:1383 Change-Id: I02fc10137d6fab410ea25a8d6c6e279b882b2287 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/88302 Kokoro: Kokoro <noreply+kokoro@google.com> Reviewed-by: Dan Sinclair <dsinclair@chromium.org> Commit-Queue: Ben Clayton <bclayton@google.com>
64 lines
1.7 KiB
C++
64 lines
1.7 KiB
C++
// Copyright 2020 The Tint Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "src/tint/writer/spirv/operand.h"
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#include "gtest/gtest.h"
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namespace tint::writer::spirv {
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namespace {
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using OperandTest = testing::Test;
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TEST_F(OperandTest, CreateFloat) {
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auto o = Operand(1.2f);
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ASSERT_TRUE(std::holds_alternative<float>(o));
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EXPECT_FLOAT_EQ(std::get<float>(o), 1.2f);
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}
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TEST_F(OperandTest, CreateInt) {
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auto o = Operand(1u);
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ASSERT_TRUE(std::holds_alternative<uint32_t>(o));
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EXPECT_EQ(std::get<uint32_t>(o), 1u);
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}
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TEST_F(OperandTest, CreateString) {
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auto o = Operand("my string");
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ASSERT_TRUE(std::holds_alternative<std::string>(o));
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EXPECT_EQ(std::get<std::string>(o), "my string");
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}
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TEST_F(OperandTest, Length_Float) {
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auto o = Operand(1.2f);
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EXPECT_EQ(OperandLength(o), 1u);
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}
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TEST_F(OperandTest, Length_Int) {
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auto o = U32Operand(1);
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EXPECT_EQ(OperandLength(o), 1u);
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}
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TEST_F(OperandTest, Length_String) {
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auto o = Operand("my string");
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EXPECT_EQ(OperandLength(o), 3u);
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}
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TEST_F(OperandTest, Length_String_Empty) {
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auto o = Operand("");
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EXPECT_EQ(OperandLength(o), 1u);
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}
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} // namespace
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} // namespace tint::writer::spirv
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