ae60884dfe
This is part of the implementation of the dataflow analysis framework. See "[RFC] A dataflow analysis framework for Clang AST" on cfe-dev. Reviewed-by: ymandel, xazax.hun Differential Revision: https://reviews.llvm.org/D120711
94 lines
3.0 KiB
C++
94 lines
3.0 KiB
C++
//===- unittests/Analysis/FlowSensitive/DataflowAnalysisContextTest.cpp ---===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "clang/Analysis/FlowSensitive/DataflowAnalysisContext.h"
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#include "clang/Analysis/FlowSensitive/WatchedLiteralsSolver.h"
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#include "gmock/gmock.h"
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#include "gtest/gtest.h"
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#include <memory>
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namespace {
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using namespace clang;
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using namespace dataflow;
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class DataflowAnalysisContextTest : public ::testing::Test {
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protected:
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DataflowAnalysisContextTest()
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: Context(std::make_unique<WatchedLiteralsSolver>()) {}
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DataflowAnalysisContext Context;
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};
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TEST_F(DataflowAnalysisContextTest,
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CreateAtomicBoolValueReturnsDistinctValues) {
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auto &X = Context.createAtomicBoolValue();
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auto &Y = Context.createAtomicBoolValue();
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EXPECT_NE(&X, &Y);
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}
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TEST_F(DataflowAnalysisContextTest,
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GetOrCreateConjunctionValueReturnsSameExprGivenSameArgs) {
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auto &X = Context.createAtomicBoolValue();
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auto &XAndX = Context.getOrCreateConjunctionValue(X, X);
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EXPECT_EQ(&XAndX, &X);
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}
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TEST_F(DataflowAnalysisContextTest,
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GetOrCreateConjunctionValueReturnsSameExprOnSubsequentCalls) {
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auto &X = Context.createAtomicBoolValue();
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auto &Y = Context.createAtomicBoolValue();
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auto &XAndY1 = Context.getOrCreateConjunctionValue(X, Y);
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auto &XAndY2 = Context.getOrCreateConjunctionValue(X, Y);
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EXPECT_EQ(&XAndY1, &XAndY2);
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auto &YAndX = Context.getOrCreateConjunctionValue(Y, X);
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EXPECT_EQ(&XAndY1, &YAndX);
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auto &Z = Context.createAtomicBoolValue();
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auto &XAndZ = Context.getOrCreateConjunctionValue(X, Z);
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EXPECT_NE(&XAndY1, &XAndZ);
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}
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TEST_F(DataflowAnalysisContextTest,
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GetOrCreateDisjunctionValueReturnsSameExprGivenSameArgs) {
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auto &X = Context.createAtomicBoolValue();
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auto &XOrX = Context.getOrCreateDisjunctionValue(X, X);
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EXPECT_EQ(&XOrX, &X);
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}
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TEST_F(DataflowAnalysisContextTest,
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GetOrCreateDisjunctionValueReturnsSameExprOnSubsequentCalls) {
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auto &X = Context.createAtomicBoolValue();
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auto &Y = Context.createAtomicBoolValue();
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auto &XOrY1 = Context.getOrCreateDisjunctionValue(X, Y);
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auto &XOrY2 = Context.getOrCreateDisjunctionValue(X, Y);
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EXPECT_EQ(&XOrY1, &XOrY2);
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auto &YOrX = Context.getOrCreateDisjunctionValue(Y, X);
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EXPECT_EQ(&XOrY1, &YOrX);
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auto &Z = Context.createAtomicBoolValue();
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auto &XOrZ = Context.getOrCreateDisjunctionValue(X, Z);
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EXPECT_NE(&XOrY1, &XOrZ);
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}
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TEST_F(DataflowAnalysisContextTest,
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GetOrCreateNegationValueReturnsSameExprOnSubsequentCalls) {
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auto &X = Context.createAtomicBoolValue();
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auto &NotX1 = Context.getOrCreateNegationValue(X);
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auto &NotX2 = Context.getOrCreateNegationValue(X);
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EXPECT_EQ(&NotX1, &NotX2);
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auto &Y = Context.createAtomicBoolValue();
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auto &NotY = Context.getOrCreateNegationValue(Y);
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EXPECT_NE(&NotX1, &NotY);
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}
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} // namespace
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