//===----------------------------------------------------------------------===//
#include "llvm/Pass.h"
-#include "llvm/PassManager.h"
#include "llvm/PassRegistry.h"
-#include "llvm/Module.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"
-#include "llvm/System/Threading.h"
-#include <algorithm>
-#include <map>
-#include <set>
using namespace llvm;
//===----------------------------------------------------------------------===//
// 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");
-}
+Pass::Pass(PassKind K, char &pid) : Resolver(0), PassID(&pid), Kind(K) { }
// Force out-of-line virtual method.
Pass::~Pass() {
return PMT_ModulePassManager;
}
-bool Pass::mustPreserveAnalysisID(const PassInfo *AnalysisID) const {
- return Resolver->getAnalysisIfAvailable(AnalysisID, true) != 0;
+bool Pass::mustPreserveAnalysisID(char &AID) const {
+ return Resolver->getAnalysisIfAvailable(&AID, true) != 0;
}
// dumpPassStructure - Implement the -debug-passes=Structure option
/// Registration templates, but can be overloaded directly.
///
const char *Pass::getPassName() const {
- if (const PassInfo *PI = getPassInfo())
+ AnalysisID AID = getPassID();
+ const PassInfo *PI = PassRegistry::getPassRegistry()->getPassInfo(AID);
+ if (PI)
return PI->getPassName();
return "Unnamed pass: implement Pass::getPassName()";
}
// By default, don't do anything.
}
-void *Pass::getAdjustedAnalysisPointer(const PassInfo *) {
+void *Pass::getAdjustedAnalysisPointer(AnalysisID AID) {
return this;
}
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.
-//
-bool FunctionPass::runOnModule(Module &M) {
- bool Changed = doInitialization(M);
-
- for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I)
- if (!I->isDeclaration()) // Passes are not run on external functions!
- Changed |= runOnFunction(*I);
-
- return Changed | doFinalization(M);
-}
-
-// run - On a function, we simply initialize, run the function, then finalize.
-//
-bool FunctionPass::run(Function &F) {
- // Passes are not run on external functions!
- if (F.isDeclaration()) return false;
-
- bool Changed = doInitialization(*F.getParent());
- Changed |= runOnFunction(F);
- return Changed | doFinalization(*F.getParent());
-}
-
bool FunctionPass::doInitialization(Module &) {
// By default, don't do anything.
return false;
return 0;
}
-// To run this pass on a function, we simply call runOnBasicBlock once for each
-// function.
-//
-bool BasicBlockPass::runOnFunction(Function &F) {
- bool Changed = doInitialization(F);
- for (Function::iterator I = F.begin(), E = F.end(); I != E; ++I)
- Changed |= runOnBasicBlock(*I);
- return Changed | doFinalization(F);
-}
-
bool BasicBlockPass::doInitialization(Module &) {
// By default, don't do anything.
return false;
return PMT_BasicBlockPassManager;
}
-//===----------------------------------------------------------------------===//
-// Pass Registration mechanism
-//
-
-static std::vector<PassRegistrationListener*> *Listeners = 0;
-static sys::SmartMutex<true> ListenersLock;
-
-// getPassInfo - Return the PassInfo data structure that corresponds to this
-// pass...
-const PassInfo *Pass::getPassInfo() const {
- return lookupPassInfo(PassID);
-}
-
-const PassInfo *Pass::lookupPassInfo(intptr_t TI) {
+const PassInfo *Pass::lookupPassInfo(const void *TI) {
return PassRegistry::getPassRegistry()->getPassInfo(TI);
}
return PassRegistry::getPassRegistry()->getPassInfo(Arg);
}
-void PassInfo::registerPass() {
- PassRegistry::getPassRegistry()->registerPass(*this);
-
- // Notify any listeners.
- sys::SmartScopedLock<true> Lock(ListenersLock);
- if (Listeners)
- for (std::vector<PassRegistrationListener*>::iterator
- I = Listeners->begin(), E = Listeners->end(); I != E; ++I)
- (*I)->passRegistered(this);
-}
-
-void PassInfo::unregisterPass() {
- PassRegistry::getPassRegistry()->unregisterPass(*this);
-}
-
Pass *PassInfo::createPass() const {
assert((!isAnalysisGroup() || NormalCtor) &&
"No default implementation found for analysis group!");
// RegisterAGBase implementation
//
-RegisterAGBase::RegisterAGBase(const char *Name, intptr_t InterfaceID,
- intptr_t PassID, bool isDefault)
- : PassInfo(Name, InterfaceID) {
-
- PassInfo *InterfaceInfo =
- const_cast<PassInfo*>(Pass::lookupPassInfo(InterfaceID));
- if (InterfaceInfo == 0) {
- // First reference to Interface, register it now.
- registerPass();
- InterfaceInfo = this;
- }
- assert(isAnalysisGroup() &&
- "Trying to join an analysis group that is a normal pass!");
-
- if (PassID) {
- const PassInfo *ImplementationInfo = Pass::lookupPassInfo(PassID);
- assert(ImplementationInfo &&
- "Must register pass before adding to AnalysisGroup!");
-
- // Make sure we keep track of the fact that the implementation implements
- // the interface.
- PassInfo *IIPI = const_cast<PassInfo*>(ImplementationInfo);
- IIPI->addInterfaceImplemented(InterfaceInfo);
-
- PassRegistry::getPassRegistry()->registerAnalysisGroup(InterfaceInfo, IIPI, isDefault);
- }
+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() {
- sys::SmartScopedLock<true> Lock(ListenersLock);
- if (!Listeners) Listeners = new std::vector<PassRegistrationListener*>();
- Listeners->push_back(this);
+ PassRegistry::getPassRegistry()->addRegistrationListener(this);
}
// dtor - Remove object from list of listeners...
PassRegistrationListener::~PassRegistrationListener() {
- sys::SmartScopedLock<true> Lock(ListenersLock);
- std::vector<PassRegistrationListener*>::iterator I =
- std::find(Listeners->begin(), Listeners->end(), this);
- assert(Listeners && I != Listeners->end() &&
- "PassRegistrationListener not registered!");
- Listeners->erase(I);
-
- if (Listeners->empty()) {
- delete Listeners;
- Listeners = 0;
- }
+ PassRegistry::getPassRegistry()->removeRegistrationListener(this);
}
// enumeratePasses - Iterate over the registered passes, calling the
void passEnumerate(const PassInfo *P) {
if (P->isCFGOnlyPass())
- CFGOnlyList.push_back(P);
+ CFGOnlyList.push_back(P->getTypeInfo());
}
};
}
GetCFGOnlyPasses(Preserved).enumeratePasses();
}
-AnalysisUsage &AnalysisUsage::addRequiredID(AnalysisID ID) {
- assert(ID && "Pass class not registered!");
- Required.push_back(ID);
+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::addRequiredTransitiveID(AnalysisID ID) {
- assert(ID && "Pass class not registered!");
+AnalysisUsage &AnalysisUsage::addRequiredID(const void *ID) {
Required.push_back(ID);
- RequiredTransitive.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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