-//===- Pass.cpp - LLVM Pass Infrastructure Impementation ------------------===//
+//===- Pass.cpp - LLVM Pass Infrastructure Implementation -----------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and 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
#include "llvm/PassManager.h"
#include "PassManagerT.h" // PassManagerT implementation
#include "llvm/Module.h"
-#include "Support/STLExtras.h"
-#include "Support/TypeInfo.h"
-#include <stdio.h>
-#include <sys/resource.h>
-#include <sys/time.h>
-#include <sys/unistd.h>
+#include "llvm/ModuleProvider.h"
+#include "llvm/ADT/STLExtras.h"
+#include "llvm/Support/TypeInfo.h"
+#include <iostream>
#include <set>
-
-// IncludeFile - Stub function used to help linking out.
-IncludeFile::IncludeFile(void*) {}
+using namespace llvm;
//===----------------------------------------------------------------------===//
// AnalysisID Class Implementation
//
-static std::vector<const PassInfo*> CFGOnlyAnalyses;
+// getCFGOnlyAnalyses - A wrapper around the CFGOnlyAnalyses which make it
+// initializer order independent.
+static std::vector<const PassInfo*> &getCFGOnlyAnalyses() {
+ static std::vector<const PassInfo*> CFGOnlyAnalyses;
+ return CFGOnlyAnalyses;
+}
-void RegisterPassBase::setPreservesCFG() {
- CFGOnlyAnalyses.push_back(PIObj);
+void RegisterPassBase::setOnlyUsesCFG() {
+ getCFGOnlyAnalyses().push_back(&PIObj);
}
//===----------------------------------------------------------------------===//
// AnalysisResolver Class Implementation
//
+AnalysisResolver::~AnalysisResolver() {
+}
void AnalysisResolver::setAnalysisResolver(Pass *P, AnalysisResolver *AR) {
assert(P->Resolver == 0 && "Pass already in a PassManager!");
P->Resolver = AR;
// that only depend on the CFG (like dominators, loop info, etc...)
//
Preserved.insert(Preserved.end(),
- CFGOnlyAnalyses.begin(), CFGOnlyAnalyses.end());
+ getCFGOnlyAnalyses().begin(), getCFGOnlyAnalyses().end());
}
// PassManager implementation - The PassManager class is a simple Pimpl class
// that wraps the PassManagerT template.
//
-PassManager::PassManager() : PM(new PassManagerT<Module>()) {}
+PassManager::PassManager() : PM(new ModulePassManager()) {}
PassManager::~PassManager() { delete PM; }
-void PassManager::add(Pass *P) { PM->add(P); }
-bool PassManager::run(Module &M) { return PM->run(M); }
+void PassManager::add(Pass *P) {
+ ModulePass *MP = dynamic_cast<ModulePass*>(P);
+ assert(MP && "Not a modulepass?");
+ PM->add(MP);
+}
+bool PassManager::run(Module &M) { return PM->runOnModule(M); }
+
+//===----------------------------------------------------------------------===//
+// FunctionPassManager implementation - The FunctionPassManager class
+// is a simple Pimpl class that wraps the PassManagerT template. It
+// is like PassManager, but only deals in FunctionPasses.
+//
+FunctionPassManager::FunctionPassManager(ModuleProvider *P) :
+ PM(new FunctionPassManagerT()), MP(P) {}
+FunctionPassManager::~FunctionPassManager() { delete PM; }
+void FunctionPassManager::add(FunctionPass *P) { PM->add(P); }
+void FunctionPassManager::add(ImmutablePass *IP) { PM->add(IP); }
+bool FunctionPassManager::run(Function &F) {
+ try {
+ MP->materializeFunction(&F);
+ } catch (std::string& errstr) {
+ std::cerr << "Error reading bytecode file: " << errstr << "\n";
+ abort();
+ } catch (...) {
+ std::cerr << "Error reading bytecode file!\n";
+ abort();
+ }
+ return PM->run(F);
+}
//===----------------------------------------------------------------------===//
// amount of time each pass takes to execute. This only happens with
// -time-passes is enabled on the command line.
//
-static cl::opt<bool>
-EnableTiming("time-passes",
+bool llvm::TimePassesIsEnabled = false;
+static cl::opt<bool,true>
+EnableTiming("time-passes", cl::location(TimePassesIsEnabled),
cl::desc("Time each pass, printing elapsed time for each on exit"));
-// Create method. If Timing is enabled, this creates and returns a new timing
-// object, otherwise it returns null.
-//
-TimingInfo *TimingInfo::create() {
- return EnableTiming ? new TimingInfo() : 0;
+// createTheTimeInfo - This method either initializes the TheTimeInfo pointer to
+// a non null value (if the -time-passes option is enabled) or it leaves it
+// null. It may be called multiple times.
+void TimingInfo::createTheTimeInfo() {
+ if (!TimePassesIsEnabled || TheTimeInfo) return;
+
+ // Constructed the first time this is called, iff -time-passes is enabled.
+ // This guarantees that the object will be constructed before static globals,
+ // thus it will be destroyed before them.
+ static TimingInfo TTI;
+ TheTimeInfo = &TTI;
}
void PMDebug::PrintArgumentInformation(const Pass *P) {
}
void PMDebug::PrintPassInformation(unsigned Depth, const char *Action,
- Pass *P, Annotable *V) {
+ Pass *P, Module *M) {
if (PassDebugging >= Executions) {
- std::cerr << (void*)P << std::string(Depth*2+1, ' ') << Action << " '"
+ std::cerr << (void*)P << std::string(Depth*2+1, ' ') << Action << " '"
<< P->getPassName();
- if (V) {
- std::cerr << "' on ";
-
- if (dynamic_cast<Module*>(V)) {
- std::cerr << "Module\n"; return;
- } else if (Function *F = dynamic_cast<Function*>(V))
- std::cerr << "Function '" << F->getName();
- else if (BasicBlock *BB = dynamic_cast<BasicBlock*>(V))
- std::cerr << "BasicBlock '" << BB->getName();
- else if (Value *Val = dynamic_cast<Value*>(V))
- std::cerr << typeid(*Val).name() << " '" << Val->getName();
- }
+ if (M) std::cerr << "' on Module '" << M->getModuleIdentifier() << "'\n";
+ std::cerr << "'...\n";
+ }
+}
+
+void PMDebug::PrintPassInformation(unsigned Depth, const char *Action,
+ Pass *P, Function *F) {
+ if (PassDebugging >= Executions) {
+ std::cerr << (void*)P << std::string(Depth*2+1, ' ') << Action << " '"
+ << P->getPassName();
+ if (F) std::cerr << "' on Function '" << F->getName();
+ std::cerr << "'...\n";
+ }
+}
+
+void PMDebug::PrintPassInformation(unsigned Depth, const char *Action,
+ Pass *P, BasicBlock *BB) {
+ if (PassDebugging >= Executions) {
+ std::cerr << (void*)P << std::string(Depth*2+1, ' ') << Action << " '"
+ << P->getPassName();
+ if (BB) std::cerr << "' on BasicBlock '" << BB->getName();
std::cerr << "'...\n";
}
}
// Pass Implementation
//
-void Pass::addToPassManager(PassManagerT<Module> *PM, AnalysisUsage &AU) {
+void ModulePass::addToPassManager(ModulePassManager *PM, AnalysisUsage &AU) {
PM->addPass(this, AU);
}
+bool Pass::mustPreserveAnalysisID(const PassInfo *AnalysisID) const {
+ return Resolver->getAnalysisToUpdate(AnalysisID) != 0;
+}
+
// dumpPassStructure - Implement the -debug-passes=Structure option
void Pass::dumpPassStructure(unsigned Offset) {
std::cerr << std::string(Offset*2, ' ') << getPassName() << "\n";
}
-// getPassName - Use C++ RTTI to get a SOMEWHAT intelligable name for the pass.
+// getPassName - Use C++ RTTI to get a SOMEWHAT intelligible name for the pass.
//
const char *Pass::getPassName() const {
if (const PassInfo *PI = getPassInfo())
return typeid(*this).name();
}
-// print - Print out the internal state of the pass. This is called by Analyse
-// to print out the contents of an analysis. Otherwise it is not neccesary to
+// 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(std::ostream &O) const {
+void Pass::print(std::ostream &O,const Module*) const {
O << "Pass::print not implemented for pass: '" << getPassName() << "'!\n";
}
//===----------------------------------------------------------------------===//
// ImmutablePass Implementation
//
-void ImmutablePass::addToPassManager(PassManagerT<Module> *PM,
+void ImmutablePass::addToPassManager(ModulePassManager *PM,
AnalysisUsage &AU) {
PM->addPass(this, AU);
}
// run - On a module, we run this pass by initializing, runOnFunction'ing once
// for every function in the module, then by finalizing.
//
-bool FunctionPass::run(Module &M) {
+bool FunctionPass::runOnModule(Module &M) {
bool Changed = doInitialization(M);
-
+
for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I)
if (!I->isExternal()) // Passes are not run on external functions!
Changed |= runOnFunction(*I);
-
+
return Changed | doFinalization(M);
}
bool FunctionPass::run(Function &F) {
if (F.isExternal()) return false;// Passes are not run on external functions!
- return doInitialization(*F.getParent()) | runOnFunction(F)
- | doFinalization(*F.getParent());
+ bool Changed = doInitialization(*F.getParent());
+ Changed |= runOnFunction(F);
+ return Changed | doFinalization(*F.getParent());
}
-void FunctionPass::addToPassManager(PassManagerT<Module> *PM,
+void FunctionPass::addToPassManager(ModulePassManager *PM,
AnalysisUsage &AU) {
PM->addPass(this, AU);
}
-void FunctionPass::addToPassManager(PassManagerT<Function> *PM,
+void FunctionPass::addToPassManager(FunctionPassManagerT *PM,
AnalysisUsage &AU) {
PM->addPass(this, AU);
}
// To run directly on the basic block, we initialize, runOnBasicBlock, then
// finalize.
//
-bool BasicBlockPass::run(BasicBlock &BB) {
+bool BasicBlockPass::runPass(BasicBlock &BB) {
Function &F = *BB.getParent();
Module &M = *F.getParent();
- return doInitialization(M) | doInitialization(F) | runOnBasicBlock(BB) |
- doFinalization(F) | doFinalization(M);
+ bool Changed = doInitialization(M);
+ Changed |= doInitialization(F);
+ Changed |= runOnBasicBlock(BB);
+ Changed |= doFinalization(F);
+ Changed |= doFinalization(M);
+ return Changed;
}
-void BasicBlockPass::addToPassManager(PassManagerT<Function> *PM,
+void BasicBlockPass::addToPassManager(FunctionPassManagerT *PM,
AnalysisUsage &AU) {
PM->addPass(this, AU);
}
-void BasicBlockPass::addToPassManager(PassManagerT<BasicBlock> *PM,
+void BasicBlockPass::addToPassManager(BasicBlockPassManager *PM,
AnalysisUsage &AU) {
PM->addPass(this, AU);
}
return (I != PassInfoMap->end()) ? I->second : 0;
}
-void RegisterPassBase::registerPass(PassInfo *PI) {
+void RegisterPassBase::registerPass() {
if (PassInfoMap == 0)
PassInfoMap = new std::map<TypeInfo, PassInfo*>();
- assert(PassInfoMap->find(PI->getTypeInfo()) == PassInfoMap->end() &&
+ assert(PassInfoMap->find(PIObj.getTypeInfo()) == PassInfoMap->end() &&
"Pass already registered!");
- PIObj = PI;
- PassInfoMap->insert(std::make_pair(TypeInfo(PI->getTypeInfo()), PI));
+ PassInfoMap->insert(std::make_pair(TypeInfo(PIObj.getTypeInfo()), &PIObj));
// Notify any listeners...
if (Listeners)
for (std::vector<PassRegistrationListener*>::iterator
I = Listeners->begin(), E = Listeners->end(); I != E; ++I)
- (*I)->passRegistered(PI);
+ (*I)->passRegistered(&PIObj);
}
-void RegisterPassBase::unregisterPass(PassInfo *PI) {
+void RegisterPassBase::unregisterPass() {
assert(PassInfoMap && "Pass registered but not in map!");
std::map<TypeInfo, PassInfo*>::iterator I =
- PassInfoMap->find(PI->getTypeInfo());
+ PassInfoMap->find(PIObj.getTypeInfo());
assert(I != PassInfoMap->end() && "Pass registered but not in map!");
// Remove pass from the map...
if (Listeners)
for (std::vector<PassRegistrationListener*>::iterator
I = Listeners->begin(), E = Listeners->end(); I != E; ++I)
- (*I)->passUnregistered(PI);
-
- // Delete the PassInfo object itself...
- delete PI;
+ (*I)->passUnregistered(&PIObj);
}
//===----------------------------------------------------------------------===//
//
RegisterAGBase::RegisterAGBase(const std::type_info &Interface,
const std::type_info *Pass, bool isDefault)
- : ImplementationInfo(0), isDefaultImplementation(isDefault) {
+ : RegisterPassBase(Interface, PassInfo::AnalysisGroup),
+ ImplementationInfo(0), isDefaultImplementation(isDefault) {
InterfaceInfo = const_cast<PassInfo*>(Pass::lookupPassInfo(Interface));
- if (InterfaceInfo == 0) { // First reference to Interface, add it now.
- InterfaceInfo = // Create the new PassInfo for the interface...
- new PassInfo("", "", Interface, PassInfo::AnalysisGroup, 0, 0);
- registerPass(InterfaceInfo);
- PIObj = 0;
+ if (InterfaceInfo == 0) {
+ // First reference to Interface, register it now.
+ registerPass();
+ InterfaceInfo = &PIObj;
}
assert(InterfaceInfo->getPassType() == PassInfo::AnalysisGroup &&
"Trying to join an analysis group that is a normal pass!");
if (AGI.DefaultImpl == ImplementationInfo)
AGI.DefaultImpl = 0;
-
+
AGI.Implementations.erase(ImplementationInfo);
// Last member of this analysis group? Unregister PassInfo, delete map entry
delete AnalysisGroupInfoMap;
AnalysisGroupInfoMap = 0;
}
-
- unregisterPass(InterfaceInfo);
}
}
+
+ if (InterfaceInfo == &PIObj)
+ unregisterPass();
}
E = PassInfoMap->end(); I != E; ++I)
passEnumerate(I->second);
}
+
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