mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-15 04:30:12 +00:00
d04a8d4b33
Sooooo many of these had incorrect or strange main module includes. I have manually inspected all of these, and fixed the main module include to be the nearest plausible thing I could find. If you own or care about any of these source files, I encourage you to take some time and check that these edits were sensible. I can't have broken anything (I strictly added headers, and reordered them, never removed), but they may not be the headers you'd really like to identify as containing the API being implemented. Many forward declarations and missing includes were added to a header files to allow them to parse cleanly when included first. The main module rule does in fact have its merits. =] git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169131 91177308-0d34-0410-b5e6-96231b3b80d8
193 lines
6.3 KiB
C++
193 lines
6.3 KiB
C++
//===- MemDepPrinter.cpp - Printer for MemoryDependenceAnalysis -----------===//
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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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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Analysis/Passes.h"
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#include "llvm/ADT/SetVector.h"
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#include "llvm/Analysis/MemoryDependenceAnalysis.h"
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#include "llvm/Assembly/Writer.h"
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#include "llvm/LLVMContext.h"
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#include "llvm/Support/CallSite.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/InstIterator.h"
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#include "llvm/Support/raw_ostream.h"
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using namespace llvm;
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namespace {
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struct MemDepPrinter : public FunctionPass {
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const Function *F;
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enum DepType {
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Clobber = 0,
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Def,
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NonFuncLocal,
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Unknown
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};
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static const char *const DepTypeStr[];
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typedef PointerIntPair<const Instruction *, 2, DepType> InstTypePair;
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typedef std::pair<InstTypePair, const BasicBlock *> Dep;
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typedef SmallSetVector<Dep, 4> DepSet;
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typedef DenseMap<const Instruction *, DepSet> DepSetMap;
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DepSetMap Deps;
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static char ID; // Pass identifcation, replacement for typeid
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MemDepPrinter() : FunctionPass(ID) {
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initializeMemDepPrinterPass(*PassRegistry::getPassRegistry());
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}
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virtual bool runOnFunction(Function &F);
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void print(raw_ostream &OS, const Module * = 0) const;
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virtual void getAnalysisUsage(AnalysisUsage &AU) const {
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AU.addRequiredTransitive<AliasAnalysis>();
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AU.addRequiredTransitive<MemoryDependenceAnalysis>();
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AU.setPreservesAll();
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}
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virtual void releaseMemory() {
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Deps.clear();
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F = 0;
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}
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private:
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static InstTypePair getInstTypePair(MemDepResult dep) {
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if (dep.isClobber())
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return InstTypePair(dep.getInst(), Clobber);
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if (dep.isDef())
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return InstTypePair(dep.getInst(), Def);
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if (dep.isNonFuncLocal())
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return InstTypePair(dep.getInst(), NonFuncLocal);
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assert(dep.isUnknown() && "unexptected dependence type");
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return InstTypePair(dep.getInst(), Unknown);
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}
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static InstTypePair getInstTypePair(const Instruction* inst, DepType type) {
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return InstTypePair(inst, type);
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}
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};
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}
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char MemDepPrinter::ID = 0;
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INITIALIZE_PASS_BEGIN(MemDepPrinter, "print-memdeps",
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"Print MemDeps of function", false, true)
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INITIALIZE_PASS_DEPENDENCY(MemoryDependenceAnalysis)
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INITIALIZE_PASS_END(MemDepPrinter, "print-memdeps",
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"Print MemDeps of function", false, true)
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FunctionPass *llvm::createMemDepPrinter() {
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return new MemDepPrinter();
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}
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const char *const MemDepPrinter::DepTypeStr[]
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= {"Clobber", "Def", "NonFuncLocal", "Unknown"};
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bool MemDepPrinter::runOnFunction(Function &F) {
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this->F = &F;
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AliasAnalysis &AA = getAnalysis<AliasAnalysis>();
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MemoryDependenceAnalysis &MDA = getAnalysis<MemoryDependenceAnalysis>();
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// All this code uses non-const interfaces because MemDep is not
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// const-friendly, though nothing is actually modified.
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for (inst_iterator I = inst_begin(F), E = inst_end(F); I != E; ++I) {
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Instruction *Inst = &*I;
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if (!Inst->mayReadFromMemory() && !Inst->mayWriteToMemory())
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continue;
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MemDepResult Res = MDA.getDependency(Inst);
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if (!Res.isNonLocal()) {
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Deps[Inst].insert(std::make_pair(getInstTypePair(Res),
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static_cast<BasicBlock *>(0)));
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} else if (CallSite CS = cast<Value>(Inst)) {
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const MemoryDependenceAnalysis::NonLocalDepInfo &NLDI =
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MDA.getNonLocalCallDependency(CS);
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DepSet &InstDeps = Deps[Inst];
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for (MemoryDependenceAnalysis::NonLocalDepInfo::const_iterator
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I = NLDI.begin(), E = NLDI.end(); I != E; ++I) {
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const MemDepResult &Res = I->getResult();
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InstDeps.insert(std::make_pair(getInstTypePair(Res), I->getBB()));
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}
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} else {
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SmallVector<NonLocalDepResult, 4> NLDI;
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if (LoadInst *LI = dyn_cast<LoadInst>(Inst)) {
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if (!LI->isUnordered()) {
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// FIXME: Handle atomic/volatile loads.
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Deps[Inst].insert(std::make_pair(getInstTypePair(0, Unknown),
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static_cast<BasicBlock *>(0)));
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continue;
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}
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AliasAnalysis::Location Loc = AA.getLocation(LI);
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MDA.getNonLocalPointerDependency(Loc, true, LI->getParent(), NLDI);
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} else if (StoreInst *SI = dyn_cast<StoreInst>(Inst)) {
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if (!SI->isUnordered()) {
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// FIXME: Handle atomic/volatile stores.
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Deps[Inst].insert(std::make_pair(getInstTypePair(0, Unknown),
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static_cast<BasicBlock *>(0)));
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continue;
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}
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AliasAnalysis::Location Loc = AA.getLocation(SI);
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MDA.getNonLocalPointerDependency(Loc, false, SI->getParent(), NLDI);
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} else if (VAArgInst *VI = dyn_cast<VAArgInst>(Inst)) {
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AliasAnalysis::Location Loc = AA.getLocation(VI);
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MDA.getNonLocalPointerDependency(Loc, false, VI->getParent(), NLDI);
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} else {
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llvm_unreachable("Unknown memory instruction!");
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}
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DepSet &InstDeps = Deps[Inst];
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for (SmallVectorImpl<NonLocalDepResult>::const_iterator
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I = NLDI.begin(), E = NLDI.end(); I != E; ++I) {
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const MemDepResult &Res = I->getResult();
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InstDeps.insert(std::make_pair(getInstTypePair(Res), I->getBB()));
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}
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}
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}
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return false;
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}
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void MemDepPrinter::print(raw_ostream &OS, const Module *M) const {
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for (const_inst_iterator I = inst_begin(*F), E = inst_end(*F); I != E; ++I) {
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const Instruction *Inst = &*I;
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DepSetMap::const_iterator DI = Deps.find(Inst);
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if (DI == Deps.end())
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continue;
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const DepSet &InstDeps = DI->second;
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for (DepSet::const_iterator I = InstDeps.begin(), E = InstDeps.end();
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I != E; ++I) {
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const Instruction *DepInst = I->first.getPointer();
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DepType type = I->first.getInt();
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const BasicBlock *DepBB = I->second;
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OS << " ";
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OS << DepTypeStr[type];
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if (DepBB) {
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OS << " in block ";
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WriteAsOperand(OS, DepBB, /*PrintType=*/false, M);
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}
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if (DepInst) {
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OS << " from: ";
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DepInst->print(OS);
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}
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OS << "\n";
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}
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Inst->print(OS);
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OS << "\n\n";
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}
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}
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