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https://github.com/c64scene-ar/llvm-6502.git
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de5df29556
a LoopInfoWrapperPass to wire the object up to the legacy pass manager. This switches all the clients of LoopInfo over and paves the way to port LoopInfo to the new pass manager. No functionality change is intended with this iteration. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226373 91177308-0d34-0410-b5e6-96231b3b80d8
560 lines
16 KiB
C++
560 lines
16 KiB
C++
//===- llvm/unittest/IR/LegacyPassManager.cpp - Legacy 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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//
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// This unit test exercises the legacy pass manager infrastructure. We use the
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// old names as well to ensure that the source-level compatibility wrapper
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// works for out-of-tree code that expects to include llvm/PassManager.h and
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// subclass the core pass classes.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/PassManager.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/Analysis/CallGraphSCCPass.h"
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#include "llvm/Analysis/LoopInfo.h"
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#include "llvm/Analysis/LoopPass.h"
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#include "llvm/IR/BasicBlock.h"
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#include "llvm/IR/CallingConv.h"
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#include "llvm/IR/Constants.h"
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#include "llvm/IR/DataLayout.h"
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#include "llvm/IR/DerivedTypes.h"
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#include "llvm/IR/Function.h"
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#include "llvm/IR/GlobalVariable.h"
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#include "llvm/IR/IRPrintingPasses.h"
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#include "llvm/IR/InlineAsm.h"
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#include "llvm/IR/Instructions.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/IR/Verifier.h"
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#include "llvm/Pass.h"
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#include "llvm/Support/MathExtras.h"
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#include "llvm/Support/raw_ostream.h"
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#include "gtest/gtest.h"
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using namespace llvm;
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namespace llvm {
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void initializeModuleNDMPass(PassRegistry&);
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void initializeFPassPass(PassRegistry&);
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void initializeCGPassPass(PassRegistry&);
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void initializeLPassPass(PassRegistry&);
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void initializeBPassPass(PassRegistry&);
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namespace {
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// ND = no deps
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// NM = no modifications
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struct ModuleNDNM: public ModulePass {
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public:
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static char run;
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static char ID;
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ModuleNDNM() : ModulePass(ID) { }
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bool runOnModule(Module &M) override {
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run++;
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return false;
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}
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void getAnalysisUsage(AnalysisUsage &AU) const override {
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AU.setPreservesAll();
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}
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};
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char ModuleNDNM::ID=0;
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char ModuleNDNM::run=0;
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struct ModuleNDM : public ModulePass {
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public:
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static char run;
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static char ID;
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ModuleNDM() : ModulePass(ID) {}
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bool runOnModule(Module &M) override {
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run++;
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return true;
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}
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};
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char ModuleNDM::ID=0;
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char ModuleNDM::run=0;
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struct ModuleNDM2 : public ModulePass {
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public:
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static char run;
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static char ID;
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ModuleNDM2() : ModulePass(ID) {}
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bool runOnModule(Module &M) override {
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run++;
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return true;
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}
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};
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char ModuleNDM2::ID=0;
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char ModuleNDM2::run=0;
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struct ModuleDNM : public ModulePass {
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public:
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static char run;
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static char ID;
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ModuleDNM() : ModulePass(ID) {
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initializeModuleNDMPass(*PassRegistry::getPassRegistry());
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}
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bool runOnModule(Module &M) override {
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EXPECT_TRUE(getAnalysisIfAvailable<DataLayoutPass>());
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run++;
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return false;
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}
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void getAnalysisUsage(AnalysisUsage &AU) const override {
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AU.addRequired<ModuleNDM>();
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AU.setPreservesAll();
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}
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};
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char ModuleDNM::ID=0;
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char ModuleDNM::run=0;
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template<typename P>
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struct PassTestBase : public P {
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protected:
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static int runc;
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static bool initialized;
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static bool finalized;
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int allocated;
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void run() {
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EXPECT_TRUE(initialized);
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EXPECT_FALSE(finalized);
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EXPECT_EQ(0, allocated);
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allocated++;
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runc++;
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}
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public:
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static char ID;
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static void finishedOK(int run) {
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EXPECT_GT(runc, 0);
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EXPECT_TRUE(initialized);
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EXPECT_TRUE(finalized);
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EXPECT_EQ(run, runc);
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}
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PassTestBase() : P(ID), allocated(0) {
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initialized = false;
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finalized = false;
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runc = 0;
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}
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void releaseMemory() override {
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EXPECT_GT(runc, 0);
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EXPECT_GT(allocated, 0);
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allocated--;
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}
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};
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template<typename P> char PassTestBase<P>::ID;
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template<typename P> int PassTestBase<P>::runc;
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template<typename P> bool PassTestBase<P>::initialized;
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template<typename P> bool PassTestBase<P>::finalized;
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template<typename T, typename P>
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struct PassTest : public PassTestBase<P> {
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public:
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#ifndef _MSC_VER // MSVC complains that Pass is not base class.
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using llvm::Pass::doInitialization;
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using llvm::Pass::doFinalization;
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#endif
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bool doInitialization(T &t) override {
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EXPECT_FALSE(PassTestBase<P>::initialized);
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PassTestBase<P>::initialized = true;
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return false;
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}
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bool doFinalization(T &t) override {
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EXPECT_FALSE(PassTestBase<P>::finalized);
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PassTestBase<P>::finalized = true;
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EXPECT_EQ(0, PassTestBase<P>::allocated);
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return false;
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}
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};
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struct CGPass : public PassTest<CallGraph, CallGraphSCCPass> {
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public:
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CGPass() {
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initializeCGPassPass(*PassRegistry::getPassRegistry());
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}
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bool runOnSCC(CallGraphSCC &SCMM) override {
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EXPECT_TRUE(getAnalysisIfAvailable<DataLayoutPass>());
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run();
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return false;
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}
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};
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struct FPass : public PassTest<Module, FunctionPass> {
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public:
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bool runOnFunction(Function &F) override {
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// FIXME: PR4112
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// EXPECT_TRUE(getAnalysisIfAvailable<DataLayout>());
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run();
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return false;
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}
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};
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struct LPass : public PassTestBase<LoopPass> {
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private:
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static int initcount;
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static int fincount;
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public:
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LPass() {
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initializeLPassPass(*PassRegistry::getPassRegistry());
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initcount = 0; fincount=0;
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EXPECT_FALSE(initialized);
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}
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static void finishedOK(int run, int finalized) {
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PassTestBase<LoopPass>::finishedOK(run);
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EXPECT_EQ(run, initcount);
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EXPECT_EQ(finalized, fincount);
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}
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using llvm::Pass::doInitialization;
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using llvm::Pass::doFinalization;
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bool doInitialization(Loop* L, LPPassManager &LPM) override {
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initialized = true;
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initcount++;
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return false;
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}
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bool runOnLoop(Loop *L, LPPassManager &LPM) override {
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EXPECT_TRUE(getAnalysisIfAvailable<DataLayoutPass>());
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run();
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return false;
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}
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bool doFinalization() override {
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fincount++;
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finalized = true;
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return false;
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}
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};
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int LPass::initcount=0;
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int LPass::fincount=0;
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struct BPass : public PassTestBase<BasicBlockPass> {
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private:
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static int inited;
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static int fin;
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public:
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static void finishedOK(int run, int N) {
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PassTestBase<BasicBlockPass>::finishedOK(run);
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EXPECT_EQ(inited, N);
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EXPECT_EQ(fin, N);
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}
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BPass() {
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inited = 0;
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fin = 0;
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}
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bool doInitialization(Module &M) override {
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EXPECT_FALSE(initialized);
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initialized = true;
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return false;
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}
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bool doInitialization(Function &F) override {
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inited++;
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return false;
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}
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bool runOnBasicBlock(BasicBlock &BB) override {
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EXPECT_TRUE(getAnalysisIfAvailable<DataLayoutPass>());
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run();
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return false;
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}
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bool doFinalization(Function &F) override {
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fin++;
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return false;
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}
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bool doFinalization(Module &M) override {
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EXPECT_FALSE(finalized);
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finalized = true;
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EXPECT_EQ(0, allocated);
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return false;
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}
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};
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int BPass::inited=0;
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int BPass::fin=0;
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struct OnTheFlyTest: public ModulePass {
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public:
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static char ID;
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OnTheFlyTest() : ModulePass(ID) {
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initializeFPassPass(*PassRegistry::getPassRegistry());
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}
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bool runOnModule(Module &M) override {
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EXPECT_TRUE(getAnalysisIfAvailable<DataLayoutPass>());
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for (Module::iterator I=M.begin(),E=M.end(); I != E; ++I) {
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Function &F = *I;
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{
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SCOPED_TRACE("Running on the fly function pass");
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getAnalysis<FPass>(F);
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}
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}
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return false;
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}
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void getAnalysisUsage(AnalysisUsage &AU) const override {
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AU.addRequired<FPass>();
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}
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};
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char OnTheFlyTest::ID=0;
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TEST(PassManager, RunOnce) {
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Module M("test-once", getGlobalContext());
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struct ModuleNDNM *mNDNM = new ModuleNDNM();
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struct ModuleDNM *mDNM = new ModuleDNM();
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struct ModuleNDM *mNDM = new ModuleNDM();
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struct ModuleNDM2 *mNDM2 = new ModuleNDM2();
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mNDM->run = mNDNM->run = mDNM->run = mNDM2->run = 0;
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PassManager Passes;
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Passes.add(new DataLayoutPass());
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Passes.add(mNDM2);
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Passes.add(mNDM);
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Passes.add(mNDNM);
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Passes.add(mDNM);
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Passes.run(M);
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// each pass must be run exactly once, since nothing invalidates them
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EXPECT_EQ(1, mNDM->run);
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EXPECT_EQ(1, mNDNM->run);
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EXPECT_EQ(1, mDNM->run);
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EXPECT_EQ(1, mNDM2->run);
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}
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TEST(PassManager, ReRun) {
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Module M("test-rerun", getGlobalContext());
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struct ModuleNDNM *mNDNM = new ModuleNDNM();
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struct ModuleDNM *mDNM = new ModuleDNM();
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struct ModuleNDM *mNDM = new ModuleNDM();
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struct ModuleNDM2 *mNDM2 = new ModuleNDM2();
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mNDM->run = mNDNM->run = mDNM->run = mNDM2->run = 0;
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PassManager Passes;
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Passes.add(new DataLayoutPass());
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Passes.add(mNDM);
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Passes.add(mNDNM);
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Passes.add(mNDM2);// invalidates mNDM needed by mDNM
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Passes.add(mDNM);
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Passes.run(M);
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// Some passes must be rerun because a pass that modified the
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// module/function was run in between
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EXPECT_EQ(2, mNDM->run);
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EXPECT_EQ(1, mNDNM->run);
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EXPECT_EQ(1, mNDM2->run);
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EXPECT_EQ(1, mDNM->run);
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}
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Module* makeLLVMModule();
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template<typename T>
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void MemoryTestHelper(int run) {
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std::unique_ptr<Module> M(makeLLVMModule());
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T *P = new T();
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PassManager Passes;
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Passes.add(new DataLayoutPass());
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Passes.add(P);
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Passes.run(*M);
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T::finishedOK(run);
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}
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template<typename T>
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void MemoryTestHelper(int run, int N) {
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Module *M = makeLLVMModule();
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T *P = new T();
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PassManager Passes;
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Passes.add(new DataLayoutPass());
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Passes.add(P);
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Passes.run(*M);
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T::finishedOK(run, N);
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delete M;
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}
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TEST(PassManager, Memory) {
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// SCC#1: test1->test2->test3->test1
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// SCC#2: test4
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// SCC#3: indirect call node
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{
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SCOPED_TRACE("Callgraph pass");
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MemoryTestHelper<CGPass>(3);
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}
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{
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SCOPED_TRACE("Function pass");
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MemoryTestHelper<FPass>(4);// 4 functions
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}
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{
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SCOPED_TRACE("Loop pass");
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MemoryTestHelper<LPass>(2, 1); //2 loops, 1 function
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}
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{
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SCOPED_TRACE("Basic block pass");
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MemoryTestHelper<BPass>(7, 4); //9 basic blocks
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}
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}
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TEST(PassManager, MemoryOnTheFly) {
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Module *M = makeLLVMModule();
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{
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SCOPED_TRACE("Running OnTheFlyTest");
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struct OnTheFlyTest *O = new OnTheFlyTest();
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PassManager Passes;
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Passes.add(new DataLayoutPass());
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Passes.add(O);
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Passes.run(*M);
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FPass::finishedOK(4);
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}
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delete M;
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}
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Module* makeLLVMModule() {
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// Module Construction
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Module* mod = new Module("test-mem", getGlobalContext());
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mod->setDataLayout("e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-"
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"i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-"
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"a:0:64-s:64:64-f80:128:128");
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mod->setTargetTriple("x86_64-unknown-linux-gnu");
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// Type Definitions
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std::vector<Type*>FuncTy_0_args;
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FunctionType* FuncTy_0 = FunctionType::get(
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/*Result=*/IntegerType::get(getGlobalContext(), 32),
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/*Params=*/FuncTy_0_args,
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/*isVarArg=*/false);
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std::vector<Type*>FuncTy_2_args;
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FuncTy_2_args.push_back(IntegerType::get(getGlobalContext(), 1));
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FunctionType* FuncTy_2 = FunctionType::get(
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/*Result=*/Type::getVoidTy(getGlobalContext()),
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/*Params=*/FuncTy_2_args,
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/*isVarArg=*/false);
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// Function Declarations
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Function* func_test1 = Function::Create(
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/*Type=*/FuncTy_0,
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/*Linkage=*/GlobalValue::ExternalLinkage,
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/*Name=*/"test1", mod);
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func_test1->setCallingConv(CallingConv::C);
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AttributeSet func_test1_PAL;
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func_test1->setAttributes(func_test1_PAL);
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Function* func_test2 = Function::Create(
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/*Type=*/FuncTy_0,
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/*Linkage=*/GlobalValue::ExternalLinkage,
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/*Name=*/"test2", mod);
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func_test2->setCallingConv(CallingConv::C);
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AttributeSet func_test2_PAL;
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func_test2->setAttributes(func_test2_PAL);
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Function* func_test3 = Function::Create(
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/*Type=*/FuncTy_0,
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/*Linkage=*/GlobalValue::ExternalLinkage,
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/*Name=*/"test3", mod);
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func_test3->setCallingConv(CallingConv::C);
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AttributeSet func_test3_PAL;
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func_test3->setAttributes(func_test3_PAL);
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Function* func_test4 = Function::Create(
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/*Type=*/FuncTy_2,
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/*Linkage=*/GlobalValue::ExternalLinkage,
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/*Name=*/"test4", mod);
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func_test4->setCallingConv(CallingConv::C);
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AttributeSet func_test4_PAL;
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func_test4->setAttributes(func_test4_PAL);
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// Global Variable Declarations
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// Constant Definitions
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// Global Variable Definitions
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// Function Definitions
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// Function: test1 (func_test1)
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{
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BasicBlock* label_entry = BasicBlock::Create(getGlobalContext(), "entry",func_test1,nullptr);
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// Block entry (label_entry)
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CallInst* int32_3 = CallInst::Create(func_test2, "", label_entry);
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int32_3->setCallingConv(CallingConv::C);
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int32_3->setTailCall(false);AttributeSet int32_3_PAL;
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int32_3->setAttributes(int32_3_PAL);
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ReturnInst::Create(getGlobalContext(), int32_3, label_entry);
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}
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// Function: test2 (func_test2)
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{
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BasicBlock* label_entry_5 = BasicBlock::Create(getGlobalContext(), "entry",func_test2,nullptr);
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// Block entry (label_entry_5)
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CallInst* int32_6 = CallInst::Create(func_test3, "", label_entry_5);
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int32_6->setCallingConv(CallingConv::C);
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int32_6->setTailCall(false);AttributeSet int32_6_PAL;
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int32_6->setAttributes(int32_6_PAL);
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ReturnInst::Create(getGlobalContext(), int32_6, label_entry_5);
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}
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// Function: test3 (func_test3)
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{
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BasicBlock* label_entry_8 = BasicBlock::Create(getGlobalContext(), "entry",func_test3,nullptr);
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// Block entry (label_entry_8)
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CallInst* int32_9 = CallInst::Create(func_test1, "", label_entry_8);
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int32_9->setCallingConv(CallingConv::C);
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int32_9->setTailCall(false);AttributeSet int32_9_PAL;
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int32_9->setAttributes(int32_9_PAL);
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ReturnInst::Create(getGlobalContext(), int32_9, label_entry_8);
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}
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// Function: test4 (func_test4)
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{
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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,nullptr);
|
|
BasicBlock* label_bb = BasicBlock::Create(getGlobalContext(), "bb",func_test4,nullptr);
|
|
BasicBlock* label_bb1 = BasicBlock::Create(getGlobalContext(), "bb1",func_test4,nullptr);
|
|
BasicBlock* label_return = BasicBlock::Create(getGlobalContext(), "return",func_test4,nullptr);
|
|
|
|
// 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(CallGraphWrapperPass)
|
|
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(LoopInfoWrapperPass)
|
|
INITIALIZE_PASS_END(LPass, "lp","lp", false, false)
|
|
INITIALIZE_PASS(BPass, "bp","bp", false, false)
|