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https://github.com/RPCS3/llvm-mirror.git
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36d470ca31
function template to simplify building a quick object with a set marked as preserved. llvm-svn: 307493
776 lines
29 KiB
C++
776 lines
29 KiB
C++
//===- llvm/unittest/IR/PassManager.cpp - PassManager tests ---------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/IR/PassManager.h"
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#include "llvm/AsmParser/Parser.h"
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#include "llvm/IR/Function.h"
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#include "llvm/IR/LLVMContext.h"
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#include "llvm/IR/Module.h"
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#include "llvm/Support/SourceMgr.h"
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#include "gtest/gtest.h"
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using namespace llvm;
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namespace {
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class TestFunctionAnalysis : public AnalysisInfoMixin<TestFunctionAnalysis> {
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public:
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struct Result {
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Result(int Count) : InstructionCount(Count) {}
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int InstructionCount;
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};
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TestFunctionAnalysis(int &Runs) : Runs(Runs) {}
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/// \brief Run the analysis pass over the function and return a result.
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Result run(Function &F, FunctionAnalysisManager &AM) {
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++Runs;
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int Count = 0;
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for (Function::iterator BBI = F.begin(), BBE = F.end(); BBI != BBE; ++BBI)
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for (BasicBlock::iterator II = BBI->begin(), IE = BBI->end(); II != IE;
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++II)
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++Count;
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return Result(Count);
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}
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private:
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friend AnalysisInfoMixin<TestFunctionAnalysis>;
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static AnalysisKey Key;
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int &Runs;
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};
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AnalysisKey TestFunctionAnalysis::Key;
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class TestModuleAnalysis : public AnalysisInfoMixin<TestModuleAnalysis> {
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public:
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struct Result {
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Result(int Count) : FunctionCount(Count) {}
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int FunctionCount;
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};
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TestModuleAnalysis(int &Runs) : Runs(Runs) {}
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Result run(Module &M, ModuleAnalysisManager &AM) {
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++Runs;
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int Count = 0;
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for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I)
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++Count;
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return Result(Count);
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}
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private:
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friend AnalysisInfoMixin<TestModuleAnalysis>;
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static AnalysisKey Key;
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int &Runs;
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};
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AnalysisKey TestModuleAnalysis::Key;
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struct TestModulePass : PassInfoMixin<TestModulePass> {
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TestModulePass(int &RunCount) : RunCount(RunCount) {}
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PreservedAnalyses run(Module &M, ModuleAnalysisManager &) {
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++RunCount;
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return PreservedAnalyses::none();
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}
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int &RunCount;
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};
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struct TestPreservingModulePass : PassInfoMixin<TestPreservingModulePass> {
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PreservedAnalyses run(Module &M, ModuleAnalysisManager &) {
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return PreservedAnalyses::all();
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}
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};
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struct TestFunctionPass : PassInfoMixin<TestFunctionPass> {
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TestFunctionPass(int &RunCount, int &AnalyzedInstrCount,
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int &AnalyzedFunctionCount,
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bool OnlyUseCachedResults = false)
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: RunCount(RunCount), AnalyzedInstrCount(AnalyzedInstrCount),
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AnalyzedFunctionCount(AnalyzedFunctionCount),
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OnlyUseCachedResults(OnlyUseCachedResults) {}
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PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM) {
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++RunCount;
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const ModuleAnalysisManager &MAM =
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AM.getResult<ModuleAnalysisManagerFunctionProxy>(F).getManager();
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if (TestModuleAnalysis::Result *TMA =
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MAM.getCachedResult<TestModuleAnalysis>(*F.getParent()))
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AnalyzedFunctionCount += TMA->FunctionCount;
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if (OnlyUseCachedResults) {
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// Hack to force the use of the cached interface.
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if (TestFunctionAnalysis::Result *AR =
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AM.getCachedResult<TestFunctionAnalysis>(F))
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AnalyzedInstrCount += AR->InstructionCount;
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} else {
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// Typical path just runs the analysis as needed.
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TestFunctionAnalysis::Result &AR = AM.getResult<TestFunctionAnalysis>(F);
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AnalyzedInstrCount += AR.InstructionCount;
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}
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return PreservedAnalyses::all();
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}
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int &RunCount;
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int &AnalyzedInstrCount;
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int &AnalyzedFunctionCount;
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bool OnlyUseCachedResults;
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};
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// A test function pass that invalidates all function analyses for a function
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// with a specific name.
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struct TestInvalidationFunctionPass
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: PassInfoMixin<TestInvalidationFunctionPass> {
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TestInvalidationFunctionPass(StringRef FunctionName) : Name(FunctionName) {}
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PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM) {
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return F.getName() == Name ? PreservedAnalyses::none()
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: PreservedAnalyses::all();
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}
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StringRef Name;
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};
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std::unique_ptr<Module> parseIR(LLVMContext &Context, const char *IR) {
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SMDiagnostic Err;
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return parseAssemblyString(IR, Err, Context);
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}
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class PassManagerTest : public ::testing::Test {
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protected:
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LLVMContext Context;
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std::unique_ptr<Module> M;
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public:
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PassManagerTest()
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: M(parseIR(Context, "define void @f() {\n"
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"entry:\n"
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" call void @g()\n"
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" call void @h()\n"
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" ret void\n"
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"}\n"
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"define void @g() {\n"
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" ret void\n"
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"}\n"
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"define void @h() {\n"
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" ret void\n"
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"}\n")) {}
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};
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TEST(PreservedAnalysesTest, Basic) {
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PreservedAnalyses PA1 = PreservedAnalyses();
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{
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auto PAC = PA1.getChecker<TestFunctionAnalysis>();
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EXPECT_FALSE(PAC.preserved());
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EXPECT_FALSE(PAC.preservedSet<AllAnalysesOn<Function>>());
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}
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{
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auto PAC = PA1.getChecker<TestModuleAnalysis>();
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EXPECT_FALSE(PAC.preserved());
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EXPECT_FALSE(PAC.preservedSet<AllAnalysesOn<Module>>());
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}
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auto PA2 = PreservedAnalyses::none();
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{
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auto PAC = PA2.getChecker<TestFunctionAnalysis>();
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EXPECT_FALSE(PAC.preserved());
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EXPECT_FALSE(PAC.preservedSet<AllAnalysesOn<Function>>());
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}
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auto PA3 = PreservedAnalyses::all();
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{
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auto PAC = PA3.getChecker<TestFunctionAnalysis>();
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EXPECT_TRUE(PAC.preserved());
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EXPECT_TRUE(PAC.preservedSet<AllAnalysesOn<Function>>());
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}
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PreservedAnalyses PA4 = PA1;
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{
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auto PAC = PA4.getChecker<TestFunctionAnalysis>();
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EXPECT_FALSE(PAC.preserved());
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EXPECT_FALSE(PAC.preservedSet<AllAnalysesOn<Function>>());
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}
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PA4 = PA3;
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{
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auto PAC = PA4.getChecker<TestFunctionAnalysis>();
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EXPECT_TRUE(PAC.preserved());
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EXPECT_TRUE(PAC.preservedSet<AllAnalysesOn<Function>>());
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}
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PA4 = std::move(PA2);
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{
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auto PAC = PA4.getChecker<TestFunctionAnalysis>();
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EXPECT_FALSE(PAC.preserved());
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EXPECT_FALSE(PAC.preservedSet<AllAnalysesOn<Function>>());
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}
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auto PA5 = PreservedAnalyses::allInSet<AllAnalysesOn<Function>>();
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{
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auto PAC = PA5.getChecker<TestFunctionAnalysis>();
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EXPECT_FALSE(PAC.preserved());
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EXPECT_TRUE(PAC.preservedSet<AllAnalysesOn<Function>>());
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EXPECT_FALSE(PAC.preservedSet<AllAnalysesOn<Module>>());
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}
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}
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TEST(PreservedAnalysesTest, Preserve) {
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auto PA = PreservedAnalyses::none();
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PA.preserve<TestFunctionAnalysis>();
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EXPECT_TRUE(PA.getChecker<TestFunctionAnalysis>().preserved());
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EXPECT_FALSE(PA.getChecker<TestModuleAnalysis>().preserved());
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PA.preserve<TestModuleAnalysis>();
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EXPECT_TRUE(PA.getChecker<TestFunctionAnalysis>().preserved());
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EXPECT_TRUE(PA.getChecker<TestModuleAnalysis>().preserved());
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// Redundant calls are fine.
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PA.preserve<TestFunctionAnalysis>();
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EXPECT_TRUE(PA.getChecker<TestFunctionAnalysis>().preserved());
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EXPECT_TRUE(PA.getChecker<TestModuleAnalysis>().preserved());
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}
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TEST(PreservedAnalysesTest, PreserveSets) {
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auto PA = PreservedAnalyses::none();
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PA.preserveSet<AllAnalysesOn<Function>>();
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EXPECT_TRUE(PA.getChecker<TestFunctionAnalysis>()
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.preservedSet<AllAnalysesOn<Function>>());
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EXPECT_FALSE(PA.getChecker<TestModuleAnalysis>()
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.preservedSet<AllAnalysesOn<Module>>());
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PA.preserveSet<AllAnalysesOn<Module>>();
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EXPECT_TRUE(PA.getChecker<TestFunctionAnalysis>()
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.preservedSet<AllAnalysesOn<Function>>());
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EXPECT_TRUE(PA.getChecker<TestModuleAnalysis>()
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.preservedSet<AllAnalysesOn<Module>>());
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// Mixing is fine.
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PA.preserve<TestFunctionAnalysis>();
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EXPECT_TRUE(PA.getChecker<TestFunctionAnalysis>()
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.preservedSet<AllAnalysesOn<Function>>());
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EXPECT_TRUE(PA.getChecker<TestModuleAnalysis>()
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.preservedSet<AllAnalysesOn<Module>>());
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// Redundant calls are fine.
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PA.preserveSet<AllAnalysesOn<Module>>();
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EXPECT_TRUE(PA.getChecker<TestFunctionAnalysis>()
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.preservedSet<AllAnalysesOn<Function>>());
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EXPECT_TRUE(PA.getChecker<TestModuleAnalysis>()
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.preservedSet<AllAnalysesOn<Module>>());
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}
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TEST(PreservedAnalysisTest, Intersect) {
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// Setup the initial sets.
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auto PA1 = PreservedAnalyses::none();
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PA1.preserve<TestFunctionAnalysis>();
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PA1.preserveSet<AllAnalysesOn<Module>>();
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auto PA2 = PreservedAnalyses::none();
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PA2.preserve<TestFunctionAnalysis>();
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PA2.preserveSet<AllAnalysesOn<Function>>();
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PA2.preserve<TestModuleAnalysis>();
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PA2.preserveSet<AllAnalysesOn<Module>>();
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auto PA3 = PreservedAnalyses::none();
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PA3.preserve<TestModuleAnalysis>();
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PA3.preserveSet<AllAnalysesOn<Function>>();
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// Self intersection is a no-op.
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auto Intersected = PA1;
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Intersected.intersect(PA1);
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EXPECT_TRUE(Intersected.getChecker<TestFunctionAnalysis>().preserved());
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EXPECT_FALSE(Intersected.getChecker<TestFunctionAnalysis>()
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.preservedSet<AllAnalysesOn<Function>>());
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EXPECT_FALSE(Intersected.getChecker<TestModuleAnalysis>().preserved());
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EXPECT_TRUE(Intersected.getChecker<TestModuleAnalysis>()
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.preservedSet<AllAnalysesOn<Module>>());
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// Intersecting with all is a no-op.
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Intersected.intersect(PreservedAnalyses::all());
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EXPECT_TRUE(Intersected.getChecker<TestFunctionAnalysis>().preserved());
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EXPECT_FALSE(Intersected.getChecker<TestFunctionAnalysis>()
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.preservedSet<AllAnalysesOn<Function>>());
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EXPECT_FALSE(Intersected.getChecker<TestModuleAnalysis>().preserved());
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EXPECT_TRUE(Intersected.getChecker<TestModuleAnalysis>()
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.preservedSet<AllAnalysesOn<Module>>());
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// Intersecting a narrow set with a more broad set is the narrow set.
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Intersected.intersect(PA2);
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EXPECT_TRUE(Intersected.getChecker<TestFunctionAnalysis>().preserved());
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EXPECT_FALSE(Intersected.getChecker<TestFunctionAnalysis>()
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.preservedSet<AllAnalysesOn<Function>>());
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EXPECT_FALSE(Intersected.getChecker<TestModuleAnalysis>().preserved());
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EXPECT_TRUE(Intersected.getChecker<TestModuleAnalysis>()
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.preservedSet<AllAnalysesOn<Module>>());
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// Intersecting a broad set with a more narrow set is the narrow set.
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Intersected = PA2;
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Intersected.intersect(PA1);
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EXPECT_TRUE(Intersected.getChecker<TestFunctionAnalysis>().preserved());
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EXPECT_FALSE(Intersected.getChecker<TestFunctionAnalysis>()
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.preservedSet<AllAnalysesOn<Function>>());
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EXPECT_FALSE(Intersected.getChecker<TestModuleAnalysis>().preserved());
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EXPECT_TRUE(Intersected.getChecker<TestModuleAnalysis>()
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.preservedSet<AllAnalysesOn<Module>>());
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// Intersecting with empty clears.
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Intersected.intersect(PreservedAnalyses::none());
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EXPECT_FALSE(Intersected.getChecker<TestFunctionAnalysis>().preserved());
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EXPECT_FALSE(Intersected.getChecker<TestFunctionAnalysis>()
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.preservedSet<AllAnalysesOn<Function>>());
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EXPECT_FALSE(Intersected.getChecker<TestModuleAnalysis>().preserved());
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EXPECT_FALSE(Intersected.getChecker<TestModuleAnalysis>()
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.preservedSet<AllAnalysesOn<Module>>());
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// Intersecting non-overlapping clears.
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Intersected = PA1;
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Intersected.intersect(PA3);
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EXPECT_FALSE(Intersected.getChecker<TestFunctionAnalysis>().preserved());
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EXPECT_FALSE(Intersected.getChecker<TestFunctionAnalysis>()
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.preservedSet<AllAnalysesOn<Function>>());
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EXPECT_FALSE(Intersected.getChecker<TestModuleAnalysis>().preserved());
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EXPECT_FALSE(Intersected.getChecker<TestModuleAnalysis>()
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.preservedSet<AllAnalysesOn<Module>>());
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// Intersecting with moves works in when there is storage on both sides.
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Intersected = PA1;
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auto Tmp = PA2;
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Intersected.intersect(std::move(Tmp));
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EXPECT_TRUE(Intersected.getChecker<TestFunctionAnalysis>().preserved());
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EXPECT_FALSE(Intersected.getChecker<TestFunctionAnalysis>()
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.preservedSet<AllAnalysesOn<Function>>());
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EXPECT_FALSE(Intersected.getChecker<TestModuleAnalysis>().preserved());
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EXPECT_TRUE(Intersected.getChecker<TestModuleAnalysis>()
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.preservedSet<AllAnalysesOn<Module>>());
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// Intersecting with move works for incoming all and existing all.
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auto Tmp2 = PreservedAnalyses::all();
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Intersected.intersect(std::move(Tmp2));
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EXPECT_TRUE(Intersected.getChecker<TestFunctionAnalysis>().preserved());
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EXPECT_FALSE(Intersected.getChecker<TestFunctionAnalysis>()
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.preservedSet<AllAnalysesOn<Function>>());
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EXPECT_FALSE(Intersected.getChecker<TestModuleAnalysis>().preserved());
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EXPECT_TRUE(Intersected.getChecker<TestModuleAnalysis>()
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.preservedSet<AllAnalysesOn<Module>>());
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Intersected = PreservedAnalyses::all();
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auto Tmp3 = PA1;
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Intersected.intersect(std::move(Tmp3));
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EXPECT_TRUE(Intersected.getChecker<TestFunctionAnalysis>().preserved());
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EXPECT_FALSE(Intersected.getChecker<TestFunctionAnalysis>()
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.preservedSet<AllAnalysesOn<Function>>());
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EXPECT_FALSE(Intersected.getChecker<TestModuleAnalysis>().preserved());
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EXPECT_TRUE(Intersected.getChecker<TestModuleAnalysis>()
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.preservedSet<AllAnalysesOn<Module>>());
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}
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TEST(PreservedAnalysisTest, Abandon) {
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auto PA = PreservedAnalyses::none();
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// We can abandon things after they are preserved.
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PA.preserve<TestFunctionAnalysis>();
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PA.abandon<TestFunctionAnalysis>();
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EXPECT_FALSE(PA.getChecker<TestFunctionAnalysis>().preserved());
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// Repeated is fine, and abandoning if they were never preserved is fine.
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PA.abandon<TestFunctionAnalysis>();
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EXPECT_FALSE(PA.getChecker<TestFunctionAnalysis>().preserved());
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PA.abandon<TestModuleAnalysis>();
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EXPECT_FALSE(PA.getChecker<TestModuleAnalysis>().preserved());
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// Even if the sets are preserved, the abandoned analyses' checker won't
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// return true for those sets.
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PA.preserveSet<AllAnalysesOn<Function>>();
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PA.preserveSet<AllAnalysesOn<Module>>();
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EXPECT_FALSE(PA.getChecker<TestFunctionAnalysis>()
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.preservedSet<AllAnalysesOn<Function>>());
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EXPECT_FALSE(PA.getChecker<TestModuleAnalysis>()
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.preservedSet<AllAnalysesOn<Module>>());
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// But an arbitrary (opaque) analysis will still observe the sets as
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// preserved. This also checks that we can use an explicit ID rather than
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// a type.
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AnalysisKey FakeKey, *FakeID = &FakeKey;
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EXPECT_TRUE(PA.getChecker(FakeID).preservedSet<AllAnalysesOn<Function>>());
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EXPECT_TRUE(PA.getChecker(FakeID).preservedSet<AllAnalysesOn<Module>>());
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}
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TEST_F(PassManagerTest, Basic) {
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FunctionAnalysisManager FAM(/*DebugLogging*/ true);
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int FunctionAnalysisRuns = 0;
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FAM.registerPass([&] { return TestFunctionAnalysis(FunctionAnalysisRuns); });
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ModuleAnalysisManager MAM(/*DebugLogging*/ true);
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int ModuleAnalysisRuns = 0;
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MAM.registerPass([&] { return TestModuleAnalysis(ModuleAnalysisRuns); });
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MAM.registerPass([&] { return FunctionAnalysisManagerModuleProxy(FAM); });
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FAM.registerPass([&] { return ModuleAnalysisManagerFunctionProxy(MAM); });
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ModulePassManager MPM;
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// Count the runs over a Function.
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int FunctionPassRunCount1 = 0;
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int AnalyzedInstrCount1 = 0;
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int AnalyzedFunctionCount1 = 0;
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{
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// Pointless scoped copy to test move assignment.
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ModulePassManager NestedMPM(/*DebugLogging*/ true);
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FunctionPassManager FPM;
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{
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// Pointless scope to test move assignment.
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FunctionPassManager NestedFPM(/*DebugLogging*/ true);
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NestedFPM.addPass(TestFunctionPass(
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FunctionPassRunCount1, AnalyzedInstrCount1, AnalyzedFunctionCount1));
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FPM = std::move(NestedFPM);
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}
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NestedMPM.addPass(createModuleToFunctionPassAdaptor(std::move(FPM)));
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MPM = std::move(NestedMPM);
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}
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// Count the runs over a module.
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int ModulePassRunCount = 0;
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MPM.addPass(TestModulePass(ModulePassRunCount));
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// Count the runs over a Function in a separate manager.
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int FunctionPassRunCount2 = 0;
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int AnalyzedInstrCount2 = 0;
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int AnalyzedFunctionCount2 = 0;
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{
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FunctionPassManager FPM(/*DebugLogging*/ true);
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FPM.addPass(TestFunctionPass(FunctionPassRunCount2, AnalyzedInstrCount2,
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AnalyzedFunctionCount2));
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MPM.addPass(createModuleToFunctionPassAdaptor(std::move(FPM)));
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}
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// A third function pass manager but with only preserving intervening passes
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// and with a function pass that invalidates exactly one analysis.
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MPM.addPass(TestPreservingModulePass());
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int FunctionPassRunCount3 = 0;
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int AnalyzedInstrCount3 = 0;
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int AnalyzedFunctionCount3 = 0;
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{
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FunctionPassManager FPM(/*DebugLogging*/ true);
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FPM.addPass(TestFunctionPass(FunctionPassRunCount3, AnalyzedInstrCount3,
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AnalyzedFunctionCount3));
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FPM.addPass(TestInvalidationFunctionPass("f"));
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MPM.addPass(createModuleToFunctionPassAdaptor(std::move(FPM)));
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}
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// A fourth function pass manager but with only preserving intervening
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// passes but triggering the module analysis.
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MPM.addPass(RequireAnalysisPass<TestModuleAnalysis, Module>());
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int FunctionPassRunCount4 = 0;
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int AnalyzedInstrCount4 = 0;
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int AnalyzedFunctionCount4 = 0;
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{
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FunctionPassManager FPM;
|
|
FPM.addPass(TestFunctionPass(FunctionPassRunCount4, AnalyzedInstrCount4,
|
|
AnalyzedFunctionCount4));
|
|
MPM.addPass(createModuleToFunctionPassAdaptor(std::move(FPM)));
|
|
}
|
|
|
|
// A fifth function pass manager which invalidates one function first but
|
|
// uses only cached results.
|
|
int FunctionPassRunCount5 = 0;
|
|
int AnalyzedInstrCount5 = 0;
|
|
int AnalyzedFunctionCount5 = 0;
|
|
{
|
|
FunctionPassManager FPM(/*DebugLogging*/ true);
|
|
FPM.addPass(TestInvalidationFunctionPass("f"));
|
|
FPM.addPass(TestFunctionPass(FunctionPassRunCount5, AnalyzedInstrCount5,
|
|
AnalyzedFunctionCount5,
|
|
/*OnlyUseCachedResults=*/true));
|
|
MPM.addPass(createModuleToFunctionPassAdaptor(std::move(FPM)));
|
|
}
|
|
|
|
MPM.run(*M, MAM);
|
|
|
|
// Validate module pass counters.
|
|
EXPECT_EQ(1, ModulePassRunCount);
|
|
|
|
// Validate all function pass counter sets are the same.
|
|
EXPECT_EQ(3, FunctionPassRunCount1);
|
|
EXPECT_EQ(5, AnalyzedInstrCount1);
|
|
EXPECT_EQ(0, AnalyzedFunctionCount1);
|
|
EXPECT_EQ(3, FunctionPassRunCount2);
|
|
EXPECT_EQ(5, AnalyzedInstrCount2);
|
|
EXPECT_EQ(0, AnalyzedFunctionCount2);
|
|
EXPECT_EQ(3, FunctionPassRunCount3);
|
|
EXPECT_EQ(5, AnalyzedInstrCount3);
|
|
EXPECT_EQ(0, AnalyzedFunctionCount3);
|
|
EXPECT_EQ(3, FunctionPassRunCount4);
|
|
EXPECT_EQ(5, AnalyzedInstrCount4);
|
|
EXPECT_EQ(9, AnalyzedFunctionCount4);
|
|
EXPECT_EQ(3, FunctionPassRunCount5);
|
|
EXPECT_EQ(2, AnalyzedInstrCount5); // Only 'g' and 'h' were cached.
|
|
EXPECT_EQ(9, AnalyzedFunctionCount5);
|
|
|
|
// Validate the analysis counters:
|
|
// first run over 3 functions, then module pass invalidates
|
|
// second run over 3 functions, nothing invalidates
|
|
// third run over 0 functions, but 1 function invalidated
|
|
// fourth run over 1 function
|
|
// fifth run invalidates 1 function first, but runs over 0 functions
|
|
EXPECT_EQ(7, FunctionAnalysisRuns);
|
|
|
|
EXPECT_EQ(1, ModuleAnalysisRuns);
|
|
}
|
|
|
|
// A customized pass manager that passes extra arguments through the
|
|
// infrastructure.
|
|
typedef AnalysisManager<Function, int> CustomizedAnalysisManager;
|
|
typedef PassManager<Function, CustomizedAnalysisManager, int, int &>
|
|
CustomizedPassManager;
|
|
|
|
class CustomizedAnalysis : public AnalysisInfoMixin<CustomizedAnalysis> {
|
|
public:
|
|
struct Result {
|
|
Result(int I) : I(I) {}
|
|
int I;
|
|
};
|
|
|
|
Result run(Function &F, CustomizedAnalysisManager &AM, int I) {
|
|
return Result(I);
|
|
}
|
|
|
|
private:
|
|
friend AnalysisInfoMixin<CustomizedAnalysis>;
|
|
static AnalysisKey Key;
|
|
};
|
|
|
|
AnalysisKey CustomizedAnalysis::Key;
|
|
|
|
struct CustomizedPass : PassInfoMixin<CustomizedPass> {
|
|
std::function<void(CustomizedAnalysis::Result &, int &)> Callback;
|
|
|
|
template <typename CallbackT>
|
|
CustomizedPass(CallbackT Callback) : Callback(Callback) {}
|
|
|
|
PreservedAnalyses run(Function &F, CustomizedAnalysisManager &AM, int I,
|
|
int &O) {
|
|
Callback(AM.getResult<CustomizedAnalysis>(F, I), O);
|
|
return PreservedAnalyses::none();
|
|
}
|
|
};
|
|
|
|
TEST_F(PassManagerTest, CustomizedPassManagerArgs) {
|
|
CustomizedAnalysisManager AM;
|
|
AM.registerPass([&] { return CustomizedAnalysis(); });
|
|
|
|
CustomizedPassManager PM;
|
|
|
|
// Add an instance of the customized pass that just accumulates the input
|
|
// after it is round-tripped through the analysis.
|
|
int Result = 0;
|
|
PM.addPass(
|
|
CustomizedPass([](CustomizedAnalysis::Result &R, int &O) { O += R.I; }));
|
|
|
|
// Run this over every function with the input of 42.
|
|
for (Function &F : *M)
|
|
PM.run(F, AM, 42, Result);
|
|
|
|
// And ensure that we accumulated the correct result.
|
|
EXPECT_EQ(42 * (int)M->size(), Result);
|
|
}
|
|
|
|
/// A test analysis pass which caches in its result another analysis pass and
|
|
/// uses it to serve queries. This requires the result to invalidate itself
|
|
/// when its dependency is invalidated.
|
|
struct TestIndirectFunctionAnalysis
|
|
: public AnalysisInfoMixin<TestIndirectFunctionAnalysis> {
|
|
struct Result {
|
|
Result(TestFunctionAnalysis::Result &FDep, TestModuleAnalysis::Result &MDep)
|
|
: FDep(FDep), MDep(MDep) {}
|
|
TestFunctionAnalysis::Result &FDep;
|
|
TestModuleAnalysis::Result &MDep;
|
|
|
|
bool invalidate(Function &F, const PreservedAnalyses &PA,
|
|
FunctionAnalysisManager::Invalidator &Inv) {
|
|
auto PAC = PA.getChecker<TestIndirectFunctionAnalysis>();
|
|
return !(PAC.preserved() ||
|
|
PAC.preservedSet<AllAnalysesOn<Function>>()) ||
|
|
Inv.invalidate<TestFunctionAnalysis>(F, PA);
|
|
}
|
|
};
|
|
|
|
TestIndirectFunctionAnalysis(int &Runs) : Runs(Runs) {}
|
|
|
|
/// Run the analysis pass over the function and return a result.
|
|
Result run(Function &F, FunctionAnalysisManager &AM) {
|
|
++Runs;
|
|
auto &FDep = AM.getResult<TestFunctionAnalysis>(F);
|
|
auto &Proxy = AM.getResult<ModuleAnalysisManagerFunctionProxy>(F);
|
|
const ModuleAnalysisManager &MAM = Proxy.getManager();
|
|
// For the test, we insist that the module analysis starts off in the
|
|
// cache.
|
|
auto &MDep = *MAM.getCachedResult<TestModuleAnalysis>(*F.getParent());
|
|
// And register the dependency as module analysis dependencies have to be
|
|
// pre-registered on the proxy.
|
|
Proxy.registerOuterAnalysisInvalidation<TestModuleAnalysis,
|
|
TestIndirectFunctionAnalysis>();
|
|
return Result(FDep, MDep);
|
|
}
|
|
|
|
private:
|
|
friend AnalysisInfoMixin<TestIndirectFunctionAnalysis>;
|
|
static AnalysisKey Key;
|
|
|
|
int &Runs;
|
|
};
|
|
|
|
AnalysisKey TestIndirectFunctionAnalysis::Key;
|
|
|
|
/// A test analysis pass which chaches in its result the result from the above
|
|
/// indirect analysis pass.
|
|
///
|
|
/// This allows us to ensure that whenever an analysis pass is invalidated due
|
|
/// to dependencies (especially dependencies across IR units that trigger
|
|
/// asynchronous invalidation) we correctly detect that this may in turn cause
|
|
/// other analysis to be invalidated.
|
|
struct TestDoublyIndirectFunctionAnalysis
|
|
: public AnalysisInfoMixin<TestDoublyIndirectFunctionAnalysis> {
|
|
struct Result {
|
|
Result(TestIndirectFunctionAnalysis::Result &IDep) : IDep(IDep) {}
|
|
TestIndirectFunctionAnalysis::Result &IDep;
|
|
|
|
bool invalidate(Function &F, const PreservedAnalyses &PA,
|
|
FunctionAnalysisManager::Invalidator &Inv) {
|
|
auto PAC = PA.getChecker<TestDoublyIndirectFunctionAnalysis>();
|
|
return !(PAC.preserved() ||
|
|
PAC.preservedSet<AllAnalysesOn<Function>>()) ||
|
|
Inv.invalidate<TestIndirectFunctionAnalysis>(F, PA);
|
|
}
|
|
};
|
|
|
|
TestDoublyIndirectFunctionAnalysis(int &Runs) : Runs(Runs) {}
|
|
|
|
/// Run the analysis pass over the function and return a result.
|
|
Result run(Function &F, FunctionAnalysisManager &AM) {
|
|
++Runs;
|
|
auto &IDep = AM.getResult<TestIndirectFunctionAnalysis>(F);
|
|
return Result(IDep);
|
|
}
|
|
|
|
private:
|
|
friend AnalysisInfoMixin<TestDoublyIndirectFunctionAnalysis>;
|
|
static AnalysisKey Key;
|
|
|
|
int &Runs;
|
|
};
|
|
|
|
AnalysisKey TestDoublyIndirectFunctionAnalysis::Key;
|
|
|
|
struct LambdaPass : public PassInfoMixin<LambdaPass> {
|
|
using FuncT = std::function<PreservedAnalyses(Function &, FunctionAnalysisManager &)>;
|
|
|
|
LambdaPass(FuncT Func) : Func(std::move(Func)) {}
|
|
|
|
PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM) {
|
|
return Func(F, AM);
|
|
}
|
|
|
|
FuncT Func;
|
|
};
|
|
|
|
TEST_F(PassManagerTest, IndirectAnalysisInvalidation) {
|
|
FunctionAnalysisManager FAM(/*DebugLogging*/ true);
|
|
int FunctionAnalysisRuns = 0, ModuleAnalysisRuns = 0,
|
|
IndirectAnalysisRuns = 0, DoublyIndirectAnalysisRuns = 0;
|
|
FAM.registerPass([&] { return TestFunctionAnalysis(FunctionAnalysisRuns); });
|
|
FAM.registerPass(
|
|
[&] { return TestIndirectFunctionAnalysis(IndirectAnalysisRuns); });
|
|
FAM.registerPass([&] {
|
|
return TestDoublyIndirectFunctionAnalysis(DoublyIndirectAnalysisRuns);
|
|
});
|
|
|
|
ModuleAnalysisManager MAM(/*DebugLogging*/ true);
|
|
MAM.registerPass([&] { return TestModuleAnalysis(ModuleAnalysisRuns); });
|
|
MAM.registerPass([&] { return FunctionAnalysisManagerModuleProxy(FAM); });
|
|
FAM.registerPass([&] { return ModuleAnalysisManagerFunctionProxy(MAM); });
|
|
|
|
int InstrCount = 0, FunctionCount = 0;
|
|
ModulePassManager MPM(/*DebugLogging*/ true);
|
|
FunctionPassManager FPM(/*DebugLogging*/ true);
|
|
// First just use the analysis to get the instruction count, and preserve
|
|
// everything.
|
|
FPM.addPass(LambdaPass([&](Function &F, FunctionAnalysisManager &AM) {
|
|
auto &DoublyIndirectResult =
|
|
AM.getResult<TestDoublyIndirectFunctionAnalysis>(F);
|
|
auto &IndirectResult = DoublyIndirectResult.IDep;
|
|
InstrCount += IndirectResult.FDep.InstructionCount;
|
|
FunctionCount += IndirectResult.MDep.FunctionCount;
|
|
return PreservedAnalyses::all();
|
|
}));
|
|
// Next, invalidate
|
|
// - both analyses for "f",
|
|
// - just the underlying (indirect) analysis for "g", and
|
|
// - just the direct analysis for "h".
|
|
FPM.addPass(LambdaPass([&](Function &F, FunctionAnalysisManager &AM) {
|
|
auto &DoublyIndirectResult =
|
|
AM.getResult<TestDoublyIndirectFunctionAnalysis>(F);
|
|
auto &IndirectResult = DoublyIndirectResult.IDep;
|
|
InstrCount += IndirectResult.FDep.InstructionCount;
|
|
FunctionCount += IndirectResult.MDep.FunctionCount;
|
|
auto PA = PreservedAnalyses::none();
|
|
if (F.getName() == "g")
|
|
PA.preserve<TestFunctionAnalysis>();
|
|
else if (F.getName() == "h")
|
|
PA.preserve<TestIndirectFunctionAnalysis>();
|
|
return PA;
|
|
}));
|
|
// Finally, use the analysis again on each function, forcing re-computation
|
|
// for all of them.
|
|
FPM.addPass(LambdaPass([&](Function &F, FunctionAnalysisManager &AM) {
|
|
auto &DoublyIndirectResult =
|
|
AM.getResult<TestDoublyIndirectFunctionAnalysis>(F);
|
|
auto &IndirectResult = DoublyIndirectResult.IDep;
|
|
InstrCount += IndirectResult.FDep.InstructionCount;
|
|
FunctionCount += IndirectResult.MDep.FunctionCount;
|
|
return PreservedAnalyses::all();
|
|
}));
|
|
|
|
// Create a second function pass manager. This will cause the module-level
|
|
// invalidation to occur, which will force yet another invalidation of the
|
|
// indirect function-level analysis as the module analysis it depends on gets
|
|
// invalidated.
|
|
FunctionPassManager FPM2(/*DebugLogging*/ true);
|
|
FPM2.addPass(LambdaPass([&](Function &F, FunctionAnalysisManager &AM) {
|
|
auto &DoublyIndirectResult =
|
|
AM.getResult<TestDoublyIndirectFunctionAnalysis>(F);
|
|
auto &IndirectResult = DoublyIndirectResult.IDep;
|
|
InstrCount += IndirectResult.FDep.InstructionCount;
|
|
FunctionCount += IndirectResult.MDep.FunctionCount;
|
|
return PreservedAnalyses::all();
|
|
}));
|
|
|
|
// Add a requires pass to populate the module analysis and then our function
|
|
// pass pipeline.
|
|
MPM.addPass(RequireAnalysisPass<TestModuleAnalysis, Module>());
|
|
MPM.addPass(createModuleToFunctionPassAdaptor(std::move(FPM)));
|
|
// Now require the module analysis again (it will have been invalidated once)
|
|
// and then use it again from a function pass manager.
|
|
MPM.addPass(RequireAnalysisPass<TestModuleAnalysis, Module>());
|
|
MPM.addPass(createModuleToFunctionPassAdaptor(std::move(FPM2)));
|
|
MPM.run(*M, MAM);
|
|
|
|
// There are generally two possible runs for each of the three functions. But
|
|
// for one function, we only invalidate the indirect analysis so the base one
|
|
// only gets run five times.
|
|
EXPECT_EQ(5, FunctionAnalysisRuns);
|
|
// The module analysis pass should be run twice here.
|
|
EXPECT_EQ(2, ModuleAnalysisRuns);
|
|
// The indirect analysis is invalidated for each function (either directly or
|
|
// indirectly) and run twice for each.
|
|
EXPECT_EQ(9, IndirectAnalysisRuns);
|
|
EXPECT_EQ(9, DoublyIndirectAnalysisRuns);
|
|
|
|
// There are five instructions in the module and we add the count four
|
|
// times.
|
|
EXPECT_EQ(5 * 4, InstrCount);
|
|
|
|
// There are three functions and we count them four times for each of the
|
|
// three functions.
|
|
EXPECT_EQ(3 * 4 * 3, FunctionCount);
|
|
}
|
|
}
|