#define LLVM_PASS_H
#include "llvm/System/DataTypes.h"
-#include <cassert>
+
+#include <string>
#include <utility>
#include <vector>
/// Ordering of pass manager types is important here.
enum PassManagerType {
PMT_Unknown = 0,
- PMT_ModulePassManager = 1, /// MPPassManager
- PMT_CallGraphPassManager, /// CGPassManager
- PMT_FunctionPassManager, /// FPPassManager
- PMT_LoopPassManager, /// LPPassManager
- PMT_BasicBlockPassManager, /// BBPassManager
+ PMT_ModulePassManager = 1, ///< MPPassManager
+ PMT_CallGraphPassManager, ///< CGPassManager
+ PMT_FunctionPassManager, ///< FPPassManager
+ PMT_LoopPassManager, ///< LPPassManager
+ PMT_BasicBlockPassManager, ///< BBPassManager
PMT_Last
};
+// Different types of passes.
+enum PassKind {
+ PT_BasicBlock,
+ PT_Loop,
+ PT_Function,
+ PT_CallGraphSCC,
+ PT_Module,
+ PT_PassManager
+};
+
//===----------------------------------------------------------------------===//
/// Pass interface - Implemented by all 'passes'. Subclass this if you are an
/// interprocedural optimization or you do not fit into any of the more
class Pass {
AnalysisResolver *Resolver; // Used to resolve analysis
intptr_t PassID;
-
+ PassKind Kind;
void operator=(const Pass&); // DO NOT IMPLEMENT
Pass(const Pass &); // DO NOT IMPLEMENT
public:
- explicit Pass(intptr_t pid) : Resolver(0), PassID(pid) {
- assert(pid && "pid cannot be 0");
- }
- explicit Pass(const void *pid) : Resolver(0), PassID((intptr_t)pid) {
- assert(pid && "pid cannot be 0");
- }
+ explicit Pass(PassKind K, intptr_t pid);
+ explicit Pass(PassKind K, const void *pid);
virtual ~Pass();
+
+ PassKind getPassKind() const { return Kind; }
+
/// 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.
virtual void print(raw_ostream &O, const Module *M) const;
void dump() const; // dump - Print to stderr.
+ /// createPrinterPass - Get a Pass appropriate to print the IR this
+ /// pass operates one (Module, Function or MachineFunction).
+ virtual Pass *createPrinterPass(raw_ostream &O,
+ const std::string &Banner) const = 0;
+
/// Each pass is responsible for assigning a pass manager to itself.
/// PMS is the stack of available pass manager.
virtual void assignPassManager(PMStack &,
PassManagerType = PMT_Unknown) {}
/// Check if available pass managers are suitable for this pass or not.
- virtual void preparePassManager(PMStack &) {}
+ virtual void preparePassManager(PMStack &);
/// Return what kind of Pass Manager can manage this pass.
- virtual PassManagerType getPotentialPassManagerType() const {
- return PMT_Unknown;
- }
+ virtual PassManagerType getPotentialPassManagerType() const;
// Access AnalysisResolver
- inline void setResolver(AnalysisResolver *AR) {
- assert (!Resolver && "Resolver is already set");
- Resolver = AR;
- }
- inline AnalysisResolver *getResolver() {
- return Resolver;
- }
+ void setResolver(AnalysisResolver *AR);
+ AnalysisResolver *getResolver() const { return Resolver; }
/// getAnalysisUsage - This function should be overriden by passes that need
/// analysis information to do their job. If a pass specifies that it uses a
/// particular analysis result to this function, it can then use the
/// getAnalysis<AnalysisType>() function, below.
///
- virtual void getAnalysisUsage(AnalysisUsage &) const {
- // By default, no analysis results are used, all are invalidated.
- }
+ virtual void getAnalysisUsage(AnalysisUsage &) const;
/// releaseMemory() - This member can be implemented by a pass if it wants to
/// be able to release its memory when it is no longer needed. The default
/// Optionally implement this function to release pass memory when it is no
/// longer used.
///
- virtual void releaseMemory() {}
-
+ virtual void releaseMemory();
+
+ /// getAdjustedAnalysisPointer - This method is used when a pass implements
+ /// an analysis interface through multiple inheritance. If needed, it should
+ /// override this to adjust the this pointer as needed for the specified pass
+ /// info.
+ virtual void *getAdjustedAnalysisPointer(const PassInfo *);
+ virtual ImmutablePass *getAsImmutablePass();
+ virtual PMDataManager *getAsPMDataManager();
+
/// verifyAnalysis() - This member can be implemented by a analysis pass to
/// check state of analysis information.
- virtual void verifyAnalysis() const {}
+ virtual void verifyAnalysis() const;
// dumpPassStructure - Implement the -debug-passes=PassStructure option
virtual void dumpPassStructure(unsigned Offset = 0);
///
class ModulePass : public Pass {
public:
+ /// createPrinterPass - Get a module printer pass.
+ Pass *createPrinterPass(raw_ostream &O, const std::string &Banner) const;
+
/// runOnModule - Virtual method overriden by subclasses to process the module
/// being operated on.
virtual bool runOnModule(Module &M) = 0;
PassManagerType T = PMT_ModulePassManager);
/// Return what kind of Pass Manager can manage this pass.
- virtual PassManagerType getPotentialPassManagerType() const {
- return PMT_ModulePassManager;
- }
+ virtual PassManagerType getPotentialPassManagerType() const;
- explicit ModulePass(intptr_t pid) : Pass(pid) {}
- explicit ModulePass(const void *pid) : Pass(pid) {}
+ explicit ModulePass(intptr_t pid) : Pass(PT_Module, pid) {}
+ explicit ModulePass(const void *pid) : Pass(PT_Module, pid) {}
// Force out-of-line virtual method.
virtual ~ModulePass();
};
/// and if it does, the overloaded version of initializePass may get access to
/// these passes with getAnalysis<>.
///
- virtual void initializePass() {}
+ virtual void initializePass();
+
+ virtual ImmutablePass *getAsImmutablePass() { return this; }
/// ImmutablePasses are never run.
///
///
class FunctionPass : public Pass {
public:
- explicit FunctionPass(intptr_t pid) : Pass(pid) {}
- explicit FunctionPass(const void *pid) : Pass(pid) {}
+ explicit FunctionPass(intptr_t pid) : Pass(PT_Function, pid) {}
+ explicit FunctionPass(const void *pid) : Pass(PT_Function, pid) {}
+
+ /// createPrinterPass - Get a function printer pass.
+ Pass *createPrinterPass(raw_ostream &O, const std::string &Banner) const;
/// doInitialization - Virtual method overridden by subclasses to do
/// any necessary per-module initialization.
///
- virtual bool doInitialization(Module &) { return false; }
+ virtual bool doInitialization(Module &);
/// runOnFunction - Virtual method overriden by subclasses to do the
/// per-function processing of the pass.
/// doFinalization - Virtual method overriden by subclasses to do any post
/// processing needed after all passes have run.
///
- virtual bool doFinalization(Module &) { return false; }
+ virtual bool doFinalization(Module &);
/// runOnModule - On a module, we run this pass by initializing,
/// ronOnFunction'ing once for every function in the module, then by
PassManagerType T = PMT_FunctionPassManager);
/// Return what kind of Pass Manager can manage this pass.
- virtual PassManagerType getPotentialPassManagerType() const {
- return PMT_FunctionPassManager;
- }
+ virtual PassManagerType getPotentialPassManagerType() const;
};
///
class BasicBlockPass : public Pass {
public:
- explicit BasicBlockPass(intptr_t pid) : Pass(pid) {}
- explicit BasicBlockPass(const void *pid) : Pass(pid) {}
+ explicit BasicBlockPass(intptr_t pid) : Pass(PT_BasicBlock, pid) {}
+ explicit BasicBlockPass(const void *pid) : Pass(PT_BasicBlock, pid) {}
+
+ /// createPrinterPass - Get a function printer pass.
+ Pass *createPrinterPass(raw_ostream &O, const std::string &Banner) const;
/// doInitialization - Virtual method overridden by subclasses to do
/// any necessary per-module initialization.
///
- virtual bool doInitialization(Module &) { return false; }
+ virtual bool doInitialization(Module &);
/// doInitialization - Virtual method overridden by BasicBlockPass subclasses
/// to do any necessary per-function initialization.
///
- virtual bool doInitialization(Function &) { return false; }
+ virtual bool doInitialization(Function &);
/// runOnBasicBlock - Virtual method overriden by subclasses to do the
/// per-basicblock processing of the pass.
/// doFinalization - Virtual method overriden by BasicBlockPass subclasses to
/// do any post processing needed after all passes have run.
///
- virtual bool doFinalization(Function &) { return false; }
+ virtual bool doFinalization(Function &);
/// doFinalization - Virtual method overriden by subclasses to do any post
/// processing needed after all passes have run.
///
- virtual bool doFinalization(Module &) { return false; }
+ virtual bool doFinalization(Module &);
// To run this pass on a function, we simply call runOnBasicBlock once for
PassManagerType T = PMT_BasicBlockPassManager);
/// Return what kind of Pass Manager can manage this pass.
- virtual PassManagerType getPotentialPassManagerType() const {
- return PMT_BasicBlockPassManager;
- }
+ virtual PassManagerType getPotentialPassManagerType() const;
};
/// If the user specifies the -time-passes argument on an LLVM tool command line