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Diffstat (limited to 'unittests/IR/LegacyPassManagerTest.cpp')
| -rw-r--r-- | unittests/IR/LegacyPassManagerTest.cpp | 559 |
1 files changed, 559 insertions, 0 deletions
diff --git a/unittests/IR/LegacyPassManagerTest.cpp b/unittests/IR/LegacyPassManagerTest.cpp new file mode 100644 index 0000000..11841bd --- /dev/null +++ b/unittests/IR/LegacyPassManagerTest.cpp @@ -0,0 +1,559 @@ +//===- llvm/unittest/IR/LegacyPassManager.cpp - Legacy PassManager tests --===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This unit test exercises the legacy pass manager infrastructure. We use the +// old names as well to ensure that the source-level compatibility wrapper +// works for out-of-tree code that expects to include llvm/PassManager.h and +// subclass the core pass classes. +// +//===----------------------------------------------------------------------===// + +#include "llvm/PassManager.h" +#include "llvm/ADT/SmallVector.h" +#include "llvm/Analysis/CallGraphSCCPass.h" +#include "llvm/Analysis/LoopInfo.h" +#include "llvm/Analysis/LoopPass.h" +#include "llvm/Analysis/Verifier.h" +#include "llvm/Assembly/PrintModulePass.h" +#include "llvm/IR/BasicBlock.h" +#include "llvm/IR/CallingConv.h" +#include "llvm/IR/Constants.h" +#include "llvm/IR/DataLayout.h" +#include "llvm/IR/DerivedTypes.h" +#include "llvm/IR/Function.h" +#include "llvm/IR/GlobalVariable.h" +#include "llvm/IR/InlineAsm.h" +#include "llvm/IR/Instructions.h" +#include "llvm/IR/LLVMContext.h" +#include "llvm/IR/Module.h" +#include "llvm/Pass.h" +#include "llvm/Support/MathExtras.h" +#include "llvm/Support/raw_ostream.h" +#include "gtest/gtest.h" + +using namespace llvm; + +namespace llvm { + void initializeModuleNDMPass(PassRegistry&); + void initializeFPassPass(PassRegistry&); + void initializeCGPassPass(PassRegistry&); + void initializeLPassPass(PassRegistry&); + void initializeBPassPass(PassRegistry&); + + namespace { + // ND = no deps + // NM = no modifications + struct ModuleNDNM: public ModulePass { + public: + static char run; + static char ID; + ModuleNDNM() : ModulePass(ID) { } + virtual bool runOnModule(Module &M) { + run++; + return false; + } + virtual void getAnalysisUsage(AnalysisUsage &AU) const { + AU.setPreservesAll(); + } + }; + char ModuleNDNM::ID=0; + char ModuleNDNM::run=0; + + struct ModuleNDM : public ModulePass { + public: + static char run; + static char ID; + ModuleNDM() : ModulePass(ID) {} + virtual bool runOnModule(Module &M) { + run++; + return true; + } + }; + char ModuleNDM::ID=0; + char ModuleNDM::run=0; + + struct ModuleNDM2 : public ModulePass { + public: + static char run; + static char ID; + ModuleNDM2() : ModulePass(ID) {} + virtual bool runOnModule(Module &M) { + run++; + return true; + } + }; + char ModuleNDM2::ID=0; + char ModuleNDM2::run=0; + + struct ModuleDNM : public ModulePass { + public: + static char run; + static char ID; + ModuleDNM() : ModulePass(ID) { + initializeModuleNDMPass(*PassRegistry::getPassRegistry()); + } + virtual bool runOnModule(Module &M) { + EXPECT_TRUE(getAnalysisIfAvailable<DataLayout>()); + run++; + return false; + } + virtual void getAnalysisUsage(AnalysisUsage &AU) const { + AU.addRequired<ModuleNDM>(); + AU.setPreservesAll(); + } + }; + char ModuleDNM::ID=0; + char ModuleDNM::run=0; + + template<typename P> + struct PassTestBase : public P { + protected: + static int runc; + static bool initialized; + static bool finalized; + int allocated; + void run() { + EXPECT_TRUE(initialized); + EXPECT_FALSE(finalized); + EXPECT_EQ(0, allocated); + allocated++; + runc++; + } + public: + static char ID; + static void finishedOK(int run) { + EXPECT_GT(runc, 0); + EXPECT_TRUE(initialized); + EXPECT_TRUE(finalized); + EXPECT_EQ(run, runc); + } + PassTestBase() : P(ID), allocated(0) { + initialized = false; + finalized = false; + runc = 0; + } + + virtual void releaseMemory() { + EXPECT_GT(runc, 0); + EXPECT_GT(allocated, 0); + allocated--; + } + }; + template<typename P> char PassTestBase<P>::ID; + template<typename P> int PassTestBase<P>::runc; + template<typename P> bool PassTestBase<P>::initialized; + template<typename P> bool PassTestBase<P>::finalized; + + template<typename T, typename P> + struct PassTest : public PassTestBase<P> { + public: +#ifndef _MSC_VER // MSVC complains that Pass is not base class. + using llvm::Pass::doInitialization; + using llvm::Pass::doFinalization; +#endif + virtual bool doInitialization(T &t) { + EXPECT_FALSE(PassTestBase<P>::initialized); + PassTestBase<P>::initialized = true; + return false; + } + virtual bool doFinalization(T &t) { + EXPECT_FALSE(PassTestBase<P>::finalized); + PassTestBase<P>::finalized = true; + EXPECT_EQ(0, PassTestBase<P>::allocated); + return false; + } + }; + + struct CGPass : public PassTest<CallGraph, CallGraphSCCPass> { + public: + CGPass() { + initializeCGPassPass(*PassRegistry::getPassRegistry()); + } + virtual bool runOnSCC(CallGraphSCC &SCMM) { + EXPECT_TRUE(getAnalysisIfAvailable<DataLayout>()); + run(); + return false; + } + }; + + struct FPass : public PassTest<Module, FunctionPass> { + public: + virtual bool runOnFunction(Function &F) { + // FIXME: PR4112 + // EXPECT_TRUE(getAnalysisIfAvailable<DataLayout>()); + run(); + return false; + } + }; + + struct LPass : public PassTestBase<LoopPass> { + private: + static int initcount; + static int fincount; + public: + LPass() { + initializeLPassPass(*PassRegistry::getPassRegistry()); + initcount = 0; fincount=0; + EXPECT_FALSE(initialized); + } + static void finishedOK(int run, int finalized) { + PassTestBase<LoopPass>::finishedOK(run); + EXPECT_EQ(run, initcount); + EXPECT_EQ(finalized, fincount); + } + using llvm::Pass::doInitialization; + using llvm::Pass::doFinalization; + virtual bool doInitialization(Loop* L, LPPassManager &LPM) { + initialized = true; + initcount++; + return false; + } + virtual bool runOnLoop(Loop *L, LPPassManager &LPM) { + EXPECT_TRUE(getAnalysisIfAvailable<DataLayout>()); + run(); + return false; + } + virtual bool doFinalization() { + fincount++; + finalized = true; + return false; + } + }; + int LPass::initcount=0; + int LPass::fincount=0; + + struct BPass : public PassTestBase<BasicBlockPass> { + private: + static int inited; + static int fin; + public: + static void finishedOK(int run, int N) { + PassTestBase<BasicBlockPass>::finishedOK(run); + EXPECT_EQ(inited, N); + EXPECT_EQ(fin, N); + } + BPass() { + inited = 0; + fin = 0; + } + virtual bool doInitialization(Module &M) { + EXPECT_FALSE(initialized); + initialized = true; + return false; + } + virtual bool doInitialization(Function &F) { + inited++; + return false; + } + virtual bool runOnBasicBlock(BasicBlock &BB) { + EXPECT_TRUE(getAnalysisIfAvailable<DataLayout>()); + run(); + return false; + } + virtual bool doFinalization(Function &F) { + fin++; + return false; + } + virtual bool doFinalization(Module &M) { + EXPECT_FALSE(finalized); + finalized = true; + EXPECT_EQ(0, allocated); + return false; + } + }; + int BPass::inited=0; + int BPass::fin=0; + + struct OnTheFlyTest: public ModulePass { + public: + static char ID; + OnTheFlyTest() : ModulePass(ID) { + initializeFPassPass(*PassRegistry::getPassRegistry()); + } + virtual bool runOnModule(Module &M) { + EXPECT_TRUE(getAnalysisIfAvailable<DataLayout>()); + for (Module::iterator I=M.begin(),E=M.end(); I != E; ++I) { + Function &F = *I; + { + SCOPED_TRACE("Running on the fly function pass"); + getAnalysis<FPass>(F); + } + } + return false; + } + virtual void getAnalysisUsage(AnalysisUsage &AU) const { + AU.addRequired<FPass>(); + } + }; + char OnTheFlyTest::ID=0; + + TEST(PassManager, RunOnce) { + Module M("test-once", getGlobalContext()); + struct ModuleNDNM *mNDNM = new ModuleNDNM(); + struct ModuleDNM *mDNM = new ModuleDNM(); + struct ModuleNDM *mNDM = new ModuleNDM(); + struct ModuleNDM2 *mNDM2 = new ModuleNDM2(); + + mNDM->run = mNDNM->run = mDNM->run = mNDM2->run = 0; + + PassManager Passes; + Passes.add(new DataLayout(&M)); + Passes.add(mNDM2); + Passes.add(mNDM); + Passes.add(mNDNM); + Passes.add(mDNM); + + Passes.run(M); + // each pass must be run exactly once, since nothing invalidates them + EXPECT_EQ(1, mNDM->run); + EXPECT_EQ(1, mNDNM->run); + EXPECT_EQ(1, mDNM->run); + EXPECT_EQ(1, mNDM2->run); + } + + TEST(PassManager, ReRun) { + Module M("test-rerun", getGlobalContext()); + struct ModuleNDNM *mNDNM = new ModuleNDNM(); + struct ModuleDNM *mDNM = new ModuleDNM(); + struct ModuleNDM *mNDM = new ModuleNDM(); + struct ModuleNDM2 *mNDM2 = new ModuleNDM2(); + + mNDM->run = mNDNM->run = mDNM->run = mNDM2->run = 0; + + PassManager Passes; + Passes.add(new DataLayout(&M)); + Passes.add(mNDM); + Passes.add(mNDNM); + Passes.add(mNDM2);// invalidates mNDM needed by mDNM + Passes.add(mDNM); + + Passes.run(M); + // Some passes must be rerun because a pass that modified the + // module/function was run in between + EXPECT_EQ(2, mNDM->run); + EXPECT_EQ(1, mNDNM->run); + EXPECT_EQ(1, mNDM2->run); + EXPECT_EQ(1, mDNM->run); + } + + Module* makeLLVMModule(); + + template<typename T> + void MemoryTestHelper(int run) { + OwningPtr<Module> M(makeLLVMModule()); + T *P = new T(); + PassManager Passes; + Passes.add(new DataLayout(M.get())); + Passes.add(P); + Passes.run(*M); + T::finishedOK(run); + } + + template<typename T> + void MemoryTestHelper(int run, int N) { + Module *M = makeLLVMModule(); + T *P = new T(); + PassManager Passes; + Passes.add(new DataLayout(M)); + Passes.add(P); + Passes.run(*M); + T::finishedOK(run, N); + delete M; + } + + TEST(PassManager, Memory) { + // SCC#1: test1->test2->test3->test1 + // SCC#2: test4 + // SCC#3: indirect call node + { + SCOPED_TRACE("Callgraph pass"); + MemoryTestHelper<CGPass>(3); + } + + { + SCOPED_TRACE("Function pass"); + MemoryTestHelper<FPass>(4);// 4 functions + } + + { + SCOPED_TRACE("Loop pass"); + MemoryTestHelper<LPass>(2, 1); //2 loops, 1 function + } + { + SCOPED_TRACE("Basic block pass"); + MemoryTestHelper<BPass>(7, 4); //9 basic blocks + } + + } + + TEST(PassManager, MemoryOnTheFly) { + Module *M = makeLLVMModule(); + { + SCOPED_TRACE("Running OnTheFlyTest"); + struct OnTheFlyTest *O = new OnTheFlyTest(); + PassManager Passes; + Passes.add(new DataLayout(M)); + Passes.add(O); + Passes.run(*M); + + FPass::finishedOK(4); + } + delete M; + } + + Module* makeLLVMModule() { + // Module Construction + Module* mod = new Module("test-mem", getGlobalContext()); + mod->setDataLayout("e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-" + "i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-" + "a0:0:64-s0:64:64-f80:128:128"); + mod->setTargetTriple("x86_64-unknown-linux-gnu"); + + // Type Definitions + std::vector<Type*>FuncTy_0_args; + FunctionType* FuncTy_0 = FunctionType::get( + /*Result=*/IntegerType::get(getGlobalContext(), 32), + /*Params=*/FuncTy_0_args, + /*isVarArg=*/false); + + std::vector<Type*>FuncTy_2_args; + FuncTy_2_args.push_back(IntegerType::get(getGlobalContext(), 1)); + FunctionType* FuncTy_2 = FunctionType::get( + /*Result=*/Type::getVoidTy(getGlobalContext()), + /*Params=*/FuncTy_2_args, + /*isVarArg=*/false); + + + // Function Declarations + + Function* func_test1 = Function::Create( + /*Type=*/FuncTy_0, + /*Linkage=*/GlobalValue::ExternalLinkage, + /*Name=*/"test1", mod); + func_test1->setCallingConv(CallingConv::C); + AttributeSet func_test1_PAL; + func_test1->setAttributes(func_test1_PAL); + + Function* func_test2 = Function::Create( + /*Type=*/FuncTy_0, + /*Linkage=*/GlobalValue::ExternalLinkage, + /*Name=*/"test2", mod); + func_test2->setCallingConv(CallingConv::C); + AttributeSet func_test2_PAL; + func_test2->setAttributes(func_test2_PAL); + + Function* func_test3 = Function::Create( + /*Type=*/FuncTy_0, + /*Linkage=*/GlobalValue::ExternalLinkage, + /*Name=*/"test3", mod); + func_test3->setCallingConv(CallingConv::C); + AttributeSet func_test3_PAL; + func_test3->setAttributes(func_test3_PAL); + + Function* func_test4 = Function::Create( + /*Type=*/FuncTy_2, + /*Linkage=*/GlobalValue::ExternalLinkage, + /*Name=*/"test4", mod); + func_test4->setCallingConv(CallingConv::C); + AttributeSet func_test4_PAL; + func_test4->setAttributes(func_test4_PAL); + + // Global Variable Declarations + + + // Constant Definitions + + // Global Variable Definitions + + // Function Definitions + + // Function: test1 (func_test1) + { + + BasicBlock* label_entry = BasicBlock::Create(getGlobalContext(), "entry",func_test1,0); + + // Block entry (label_entry) + CallInst* int32_3 = CallInst::Create(func_test2, "", label_entry); + int32_3->setCallingConv(CallingConv::C); + int32_3->setTailCall(false);AttributeSet int32_3_PAL; + int32_3->setAttributes(int32_3_PAL); + + ReturnInst::Create(getGlobalContext(), int32_3, label_entry); + + } + + // Function: test2 (func_test2) + { + + BasicBlock* label_entry_5 = BasicBlock::Create(getGlobalContext(), "entry",func_test2,0); + + // Block entry (label_entry_5) + CallInst* int32_6 = CallInst::Create(func_test3, "", label_entry_5); + int32_6->setCallingConv(CallingConv::C); + int32_6->setTailCall(false);AttributeSet int32_6_PAL; + int32_6->setAttributes(int32_6_PAL); + + ReturnInst::Create(getGlobalContext(), int32_6, label_entry_5); + + } + + // Function: test3 (func_test3) + { + + BasicBlock* label_entry_8 = BasicBlock::Create(getGlobalContext(), "entry",func_test3,0); + + // Block entry (label_entry_8) + CallInst* int32_9 = CallInst::Create(func_test1, "", label_entry_8); + int32_9->setCallingConv(CallingConv::C); + int32_9->setTailCall(false);AttributeSet int32_9_PAL; + int32_9->setAttributes(int32_9_PAL); + + ReturnInst::Create(getGlobalContext(), int32_9, label_entry_8); + + } + + // Function: test4 (func_test4) + { + Function::arg_iterator args = func_test4->arg_begin(); + Value* int1_f = args++; + int1_f->setName("f"); + + BasicBlock* label_entry_11 = BasicBlock::Create(getGlobalContext(), "entry",func_test4,0); + BasicBlock* label_bb = BasicBlock::Create(getGlobalContext(), "bb",func_test4,0); + BasicBlock* label_bb1 = BasicBlock::Create(getGlobalContext(), "bb1",func_test4,0); + BasicBlock* label_return = BasicBlock::Create(getGlobalContext(), "return",func_test4,0); + + // Block entry (label_entry_11) + BranchInst::Create(label_bb, label_entry_11); + + // Block bb (label_bb) + BranchInst::Create(label_bb, label_bb1, int1_f, label_bb); + + // Block bb1 (label_bb1) + BranchInst::Create(label_bb1, label_return, int1_f, label_bb1); + + // Block return (label_return) + ReturnInst::Create(getGlobalContext(), label_return); + + } + return mod; + } + + } +} + +INITIALIZE_PASS(ModuleNDM, "mndm", "mndm", false, false) +INITIALIZE_PASS_BEGIN(CGPass, "cgp","cgp", false, false) +INITIALIZE_PASS_DEPENDENCY(CallGraph) +INITIALIZE_PASS_END(CGPass, "cgp","cgp", false, false) +INITIALIZE_PASS(FPass, "fp","fp", false, false) +INITIALIZE_PASS_BEGIN(LPass, "lp","lp", false, false) +INITIALIZE_PASS_DEPENDENCY(LoopInfo) +INITIALIZE_PASS_END(LPass, "lp","lp", false, false) +INITIALIZE_PASS(BPass, "bp","bp", false, false) |