#include "llvm/Pass.h"
#include "llvm/PassManager.h"
+#include "llvm/PassRegistry.h"
#include "llvm/Module.h"
-#include "llvm/ModuleProvider.h"
#include "llvm/ADT/STLExtras.h"
+#include "llvm/ADT/StringMap.h"
+#include "llvm/Assembly/PrintModulePass.h"
+#include "llvm/Support/Debug.h"
#include "llvm/Support/ManagedStatic.h"
+#include "llvm/Support/PassNameParser.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/System/Atomic.h"
#include "llvm/System/Mutex.h"
// Pass Implementation
//
+Pass::Pass(PassKind K, intptr_t pid) : Resolver(0), PassID(pid), Kind(K) {
+ assert(pid && "pid cannot be 0");
+}
+
+Pass::Pass(PassKind K, const void *pid)
+ : Resolver(0), PassID((intptr_t)pid), Kind(K) {
+ assert(pid && "pid cannot be 0");
+}
+
// 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(const PassInfo *AnalysisID) const {
return Resolver->getAnalysisIfAvailable(AnalysisID, true) != 0;
}
// dumpPassStructure - Implement the -debug-passes=Structure option
void Pass::dumpPassStructure(unsigned Offset) {
- errs().indent(Offset*2) << getPassName() << "\n";
+ dbgs().indent(Offset*2) << getPassName() << "\n";
}
/// getPassName - Return a nice clean name for a pass. This usually
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(const PassInfo *) {
+ 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.
// dump - call print(cerr);
void Pass::dump() const {
- print(errs(), 0);
+ print(dbgs(), 0);
}
//===----------------------------------------------------------------------===//
// 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);
+}
+
// run - On a module, we run this pass by initializing, runOnFunction'ing once
// for every function in the module, then by finalizing.
//
return Changed | doFinalization(*F.getParent());
}
+bool FunctionPass::doInitialization(Module &) {
+ // By default, don't do anything.
+ return false;
+}
+
+bool FunctionPass::doFinalization(Module &) {
+ // By default, don't do anything.
+ return false;
+}
+
+PassManagerType FunctionPass::getPotentialPassManagerType() const {
+ return PMT_FunctionPassManager;
+}
+
//===----------------------------------------------------------------------===//
// BasicBlockPass Implementation
//
+Pass *BasicBlockPass::createPrinterPass(raw_ostream &O,
+ const std::string &Banner) const {
+
+ llvm_unreachable("BasicBlockPass printing unsupported.");
+ return 0;
+}
+
// To run this pass on a function, we simply call runOnBasicBlock once for each
// function.
//
return Changed | doFinalization(F);
}
+bool BasicBlockPass::doInitialization(Module &) {
+ // By default, don't do anything.
+ return false;
+}
+
+bool BasicBlockPass::doInitialization(Function &) {
+ // By default, don't do anything.
+ return false;
+}
+
+bool BasicBlockPass::doFinalization(Function &) {
+ // By default, don't do anything.
+ return false;
+}
+
+bool BasicBlockPass::doFinalization(Module &) {
+ // By default, don't do anything.
+ return false;
+}
+
+PassManagerType BasicBlockPass::getPotentialPassManagerType() const {
+ return PMT_BasicBlockPassManager;
+}
+
//===----------------------------------------------------------------------===//
// Pass Registration mechanism
//
-namespace {
-class PassRegistrar {
- /// PassInfoMap - Keep track of the passinfo object for each registered llvm
- /// pass.
- typedef std::map<intptr_t, const PassInfo*> MapType;
- MapType PassInfoMap;
-
- /// AnalysisGroupInfo - Keep track of information for each analysis group.
- struct AnalysisGroupInfo {
- const PassInfo *DefaultImpl;
- std::set<const PassInfo *> Implementations;
- AnalysisGroupInfo() : DefaultImpl(0) {}
- };
-
- /// AnalysisGroupInfoMap - Information for each analysis group.
- std::map<const PassInfo *, AnalysisGroupInfo> AnalysisGroupInfoMap;
-
-public:
-
- const PassInfo *GetPassInfo(intptr_t TI) const {
- MapType::const_iterator I = PassInfoMap.find(TI);
- return I != PassInfoMap.end() ? I->second : 0;
- }
-
- void RegisterPass(const PassInfo &PI) {
- bool Inserted =
- PassInfoMap.insert(std::make_pair(PI.getTypeInfo(),&PI)).second;
- assert(Inserted && "Pass registered multiple times!"); Inserted=Inserted;
- }
-
- void UnregisterPass(const PassInfo &PI) {
- MapType::iterator I = PassInfoMap.find(PI.getTypeInfo());
- assert(I != PassInfoMap.end() && "Pass registered but not in map!");
-
- // Remove pass from the map.
- PassInfoMap.erase(I);
- }
-
- void EnumerateWith(PassRegistrationListener *L) {
- for (MapType::const_iterator I = PassInfoMap.begin(),
- E = PassInfoMap.end(); I != E; ++I)
- L->passEnumerate(I->second);
- }
-
-
- /// Analysis Group Mechanisms.
- void RegisterAnalysisGroup(PassInfo *InterfaceInfo,
- const PassInfo *ImplementationInfo,
- bool isDefault) {
- AnalysisGroupInfo &AGI = AnalysisGroupInfoMap[InterfaceInfo];
- assert(AGI.Implementations.count(ImplementationInfo) == 0 &&
- "Cannot add a pass to the same analysis group more than once!");
- AGI.Implementations.insert(ImplementationInfo);
- if (isDefault) {
- assert(AGI.DefaultImpl == 0 && InterfaceInfo->getNormalCtor() == 0 &&
- "Default implementation for analysis group already specified!");
- assert(ImplementationInfo->getNormalCtor() &&
- "Cannot specify pass as default if it does not have a default ctor");
- AGI.DefaultImpl = ImplementationInfo;
- InterfaceInfo->setNormalCtor(ImplementationInfo->getNormalCtor());
- }
- }
-};
-}
static std::vector<PassRegistrationListener*> *Listeners = 0;
static sys::SmartMutex<true> ListenersLock;
-// FIXME: This should use ManagedStatic to manage the pass registrar.
-// Unfortunately, we can't do this, because passes are registered with static
-// ctors, and having llvm_shutdown clear this map prevents successful
-// ressurection after llvm_shutdown is run.
-static PassRegistrar *getPassRegistrar() {
- static PassRegistrar *PassRegistrarObj = 0;
-
- // Use double-checked locking to safely initialize the registrar when
- // we're running in multithreaded mode.
- PassRegistrar* tmp = PassRegistrarObj;
- if (llvm_is_multithreaded()) {
- sys::MemoryFence();
- if (!tmp) {
- llvm_acquire_global_lock();
- tmp = PassRegistrarObj;
- if (!tmp) {
- tmp = new PassRegistrar();
- sys::MemoryFence();
- PassRegistrarObj = tmp;
- }
- llvm_release_global_lock();
- }
- } else if (!tmp) {
- PassRegistrarObj = new PassRegistrar();
- }
-
- return PassRegistrarObj;
-}
-
// getPassInfo - Return the PassInfo data structure that corresponds to this
// pass...
const PassInfo *Pass::getPassInfo() const {
}
const PassInfo *Pass::lookupPassInfo(intptr_t TI) {
- return getPassRegistrar()->GetPassInfo(TI);
+ return PassRegistry::getPassRegistry()->getPassInfo(TI);
+}
+
+const PassInfo *Pass::lookupPassInfo(StringRef Arg) {
+ return PassRegistry::getPassRegistry()->getPassInfo(Arg);
}
void PassInfo::registerPass() {
- getPassRegistrar()->RegisterPass(*this);
+ PassRegistry::getPassRegistry()->registerPass(*this);
// Notify any listeners.
sys::SmartScopedLock<true> Lock(ListenersLock);
}
void PassInfo::unregisterPass() {
- getPassRegistrar()->UnregisterPass(*this);
+ PassRegistry::getPassRegistry()->unregisterPass(*this);
+}
+
+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();
}
//===----------------------------------------------------------------------===//
//
RegisterAGBase::RegisterAGBase(const char *Name, intptr_t InterfaceID,
intptr_t PassID, bool isDefault)
- : PassInfo(Name, InterfaceID),
- ImplementationInfo(0), isDefaultImplementation(isDefault) {
+ : PassInfo(Name, InterfaceID) {
- InterfaceInfo = const_cast<PassInfo*>(Pass::lookupPassInfo(InterfaceID));
+ PassInfo *InterfaceInfo =
+ const_cast<PassInfo*>(Pass::lookupPassInfo(InterfaceID));
if (InterfaceInfo == 0) {
// First reference to Interface, register it now.
registerPass();
"Trying to join an analysis group that is a normal pass!");
if (PassID) {
- ImplementationInfo = Pass::lookupPassInfo(PassID);
+ const PassInfo *ImplementationInfo = Pass::lookupPassInfo(PassID);
assert(ImplementationInfo &&
"Must register pass before adding to AnalysisGroup!");
PassInfo *IIPI = const_cast<PassInfo*>(ImplementationInfo);
IIPI->addInterfaceImplemented(InterfaceInfo);
- getPassRegistrar()->RegisterAnalysisGroup(InterfaceInfo, IIPI, isDefault);
+ PassRegistry::getPassRegistry()->registerAnalysisGroup(InterfaceInfo, IIPI, isDefault);
}
}
// passEnumerate callback on each PassInfo object.
//
void PassRegistrationListener::enumeratePasses() {
- getPassRegistrar()->EnumerateWith(this);
+ PassRegistry::getPassRegistry()->enumerateWith(this);
}
+PassNameParser::~PassNameParser() {}
+
//===----------------------------------------------------------------------===//
// AnalysisUsage Class Implementation
//
GetCFGOnlyPasses(Preserved).enumeratePasses();
}
+AnalysisUsage &AnalysisUsage::addRequiredID(AnalysisID ID) {
+ assert(ID && "Pass class not registered!");
+ Required.push_back(ID);
+ return *this;
+}
+AnalysisUsage &AnalysisUsage::addRequiredTransitiveID(AnalysisID ID) {
+ assert(ID && "Pass class not registered!");
+ Required.push_back(ID);
+ RequiredTransitive.push_back(ID);
+ return *this;
+}
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