Members/tobaru/cbc/CbC_llvm: lib/IR/Pass.cpp comparison

comparison lib/IR/Pass.cpp @ 3:9ad51c7bc036

1st commit. remove git dir and add all files.

author	Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date	Wed, 15 May 2013 06:43:32 +0900
parents
children	54457678186b

comparison

equal deleted inserted replaced

--1:000000000000
+:9ad51c7bc036
+//===- Pass.cpp - LLVM Pass Infrastructure Implementation -----------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the LLVM Pass infrastructure.  It is primarily
+// responsible with ensuring that passes are executed and batched together
+// optimally.
+//
+//===----------------------------------------------------------------------===//
+#include "llvm/Pass.h"
+#include "llvm/Assembly/PrintModulePass.h"
+#include "llvm/PassRegistry.h"
+#include "llvm/Support/Debug.h"
+#include "llvm/Support/PassNameParser.h"
+#include "llvm/Support/raw_ostream.h"
+using namespace llvm;
+//===----------------------------------------------------------------------===//
+// Pass Implementation
+//
+// Force out-of-line virtual method.
+Pass::~Pass() {
+delete Resolver;
+}
+// Force out-of-line virtual method.
+ModulePass::~ModulePass() { }
+Pass *ModulePass::createPrinterPass(raw_ostream &O,
+const std::string &Banner) const {
+return createPrintModulePass(&O, false, Banner);
+}
+PassManagerType ModulePass::getPotentialPassManagerType() const {
+return PMT_ModulePassManager;
+}
+bool Pass::mustPreserveAnalysisID(char &AID) const {
+return Resolver->getAnalysisIfAvailable(&AID, true) != 0;
+}
+// dumpPassStructure - Implement the -debug-pass=Structure option
+void Pass::dumpPassStructure(unsigned Offset) {
+dbgs().indent(Offset*2) << getPassName() << "\n";
+}
+/// getPassName - Return a nice clean name for a pass.  This usually
+/// implemented in terms of the name that is registered by one of the
+/// Registration templates, but can be overloaded directly.
+///
+const char *Pass::getPassName() const {
+AnalysisID AID =  getPassID();
+const PassInfo *PI = PassRegistry::getPassRegistry()->getPassInfo(AID);
+if (PI)
+return PI->getPassName();
+return "Unnamed pass: implement Pass::getPassName()";
+}
+void Pass::preparePassManager(PMStack &) {
+// By default, don't do anything.
+}
+PassManagerType Pass::getPotentialPassManagerType() const {
+// Default implementation.
+return PMT_Unknown;
+}
+void Pass::getAnalysisUsage(AnalysisUsage &) const {
+// By default, no analysis results are used, all are invalidated.
+}
+void Pass::releaseMemory() {
+// By default, don't do anything.
+}
+void Pass::verifyAnalysis() const {
+// By default, don't do anything.
+}
+void *Pass::getAdjustedAnalysisPointer(AnalysisID AID) {
+return this;
+}
+ImmutablePass *Pass::getAsImmutablePass() {
+return 0;
+}
+PMDataManager *Pass::getAsPMDataManager() {
+return 0;
+}
+void Pass::setResolver(AnalysisResolver *AR) {
+assert(!Resolver && "Resolver is already set");
+Resolver = AR;
+}
+// print - Print out the internal state of the pass.  This is called by Analyze
+// to print out the contents of an analysis.  Otherwise it is not necessary to
+// implement this method.
+//
+void Pass::print(raw_ostream &O,const Module*) const {
+O << "Pass::print not implemented for pass: '" << getPassName() << "'!\n";
+}
+// dump - call print(cerr);
+void Pass::dump() const {
+print(dbgs(), 0);
+}
+//===----------------------------------------------------------------------===//
+// ImmutablePass Implementation
+//
+// Force out-of-line virtual method.
+ImmutablePass::~ImmutablePass() { }
+void ImmutablePass::initializePass() {
+// By default, don't do anything.
+}
+//===----------------------------------------------------------------------===//
+// FunctionPass Implementation
+//
+Pass *FunctionPass::createPrinterPass(raw_ostream &O,
+const std::string &Banner) const {
+return createPrintFunctionPass(Banner, &O);
+}
+PassManagerType FunctionPass::getPotentialPassManagerType() const {
+return PMT_FunctionPassManager;
+}
+//===----------------------------------------------------------------------===//
+// BasicBlockPass Implementation
+//
+Pass *BasicBlockPass::createPrinterPass(raw_ostream &O,
+const std::string &Banner) const {
+return createPrintBasicBlockPass(&O, false, Banner);
+}
+bool BasicBlockPass::doInitialization(Function &) {
+// By default, don't do anything.
+return false;
+}
+bool BasicBlockPass::doFinalization(Function &) {
+// By default, don't do anything.
+return false;
+}
+PassManagerType BasicBlockPass::getPotentialPassManagerType() const {
+return PMT_BasicBlockPassManager;
+}
+const PassInfo *Pass::lookupPassInfo(const void *TI) {
+return PassRegistry::getPassRegistry()->getPassInfo(TI);
+}
+const PassInfo *Pass::lookupPassInfo(StringRef Arg) {
+return PassRegistry::getPassRegistry()->getPassInfo(Arg);
+}
+Pass *Pass::createPass(AnalysisID ID) {
+const PassInfo *PI = PassRegistry::getPassRegistry()->getPassInfo(ID);
+if (!PI)
+return NULL;
+return PI->createPass();
+}
+Pass *PassInfo::createPass() const {
+assert((!isAnalysisGroup() || NormalCtor) &&
+"No default implementation found for analysis group!");
+assert(NormalCtor &&
+"Cannot call createPass on PassInfo without default ctor!");
+return NormalCtor();
+}
+//===----------------------------------------------------------------------===//
+//                  Analysis Group Implementation Code
+//===----------------------------------------------------------------------===//
+// RegisterAGBase implementation
+//
+RegisterAGBase::RegisterAGBase(const char *Name, const void *InterfaceID,
+const void *PassID, bool isDefault)
+: PassInfo(Name, InterfaceID) {
+PassRegistry::getPassRegistry()->registerAnalysisGroup(InterfaceID, PassID,
+*this, isDefault);
+}
+//===----------------------------------------------------------------------===//
+// PassRegistrationListener implementation
+//
+// PassRegistrationListener ctor - Add the current object to the list of
+// PassRegistrationListeners...
+PassRegistrationListener::PassRegistrationListener() {
+PassRegistry::getPassRegistry()->addRegistrationListener(this);
+}
+// dtor - Remove object from list of listeners...
+PassRegistrationListener::~PassRegistrationListener() {
+PassRegistry::getPassRegistry()->removeRegistrationListener(this);
+}
+// enumeratePasses - Iterate over the registered passes, calling the
+// passEnumerate callback on each PassInfo object.
+//
+void PassRegistrationListener::enumeratePasses() {
+PassRegistry::getPassRegistry()->enumerateWith(this);
+}
+PassNameParser::~PassNameParser() {}
+//===----------------------------------------------------------------------===//
+//   AnalysisUsage Class Implementation
+//
+namespace {
+struct GetCFGOnlyPasses : public PassRegistrationListener {
+typedef AnalysisUsage::VectorType VectorType;
+VectorType &CFGOnlyList;
+GetCFGOnlyPasses(VectorType &L) : CFGOnlyList(L) {}
+void passEnumerate(const PassInfo *P) {
+if (P->isCFGOnlyPass())
+CFGOnlyList.push_back(P->getTypeInfo());
+}
+};
+}
+// setPreservesCFG - This function should be called to by the pass, iff they do
+// not:
+//
+//  1. Add or remove basic blocks from the function
+//  2. Modify terminator instructions in any way.
+//
+// This function annotates the AnalysisUsage info object to say that analyses
+// that only depend on the CFG are preserved by this pass.
+//
+void AnalysisUsage::setPreservesCFG() {
+// Since this transformation doesn't modify the CFG, it preserves all analyses
+// that only depend on the CFG (like dominators, loop info, etc...)
+GetCFGOnlyPasses(Preserved).enumeratePasses();
+}
+AnalysisUsage &AnalysisUsage::addPreserved(StringRef Arg) {
+const PassInfo *PI = Pass::lookupPassInfo(Arg);
+// If the pass exists, preserve it. Otherwise silently do nothing.
+if (PI) Preserved.push_back(PI->getTypeInfo());
+return *this;
+}
+AnalysisUsage &AnalysisUsage::addRequiredID(const void *ID) {
+Required.push_back(ID);
+return *this;
+}
+AnalysisUsage &AnalysisUsage::addRequiredID(char &ID) {
+Required.push_back(&ID);
+return *this;
+}
+AnalysisUsage &AnalysisUsage::addRequiredTransitiveID(char &ID) {
+Required.push_back(&ID);
+RequiredTransitive.push_back(&ID);
+return *this;
+}

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comparison lib/IR/Pass.cpp @ 3:9ad51c7bc036