// Passes are designed this way so that it is possible to run passes in a cache
// and organizationally optimal order without having to specify it at the front
// end. This allows arbitrary passes to be strung together and have them
-// executed as effeciently as possible.
+// executed as efficiently as possible.
//
// Passes should extend one of the classes below, depending on the guarantees
// that it can make about what will be modified as it is run. For example, most
#ifndef LLVM_PASS_H
#define LLVM_PASS_H
-#include "llvm/System/DataTypes.h"
-
-#include <cassert>
#include <string>
-#include <utility>
-#include <vector>
namespace llvm {
class StringRef;
// AnalysisID - Use the PassInfo to identify a pass...
-typedef const PassInfo* AnalysisID;
+typedef const void* AnalysisID;
/// Different types of internal pass managers. External pass managers
/// (PassManager and FunctionPassManager) are not represented here.
PMT_CallGraphPassManager, ///< CGPassManager
PMT_FunctionPassManager, ///< FPPassManager
PMT_LoopPassManager, ///< LPPassManager
+ PMT_RegionPassManager, ///< RGPassManager
PMT_BasicBlockPassManager, ///< BBPassManager
PMT_Last
};
// Different types of passes.
enum PassKind {
PT_BasicBlock,
+ PT_Region,
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;
+ const void *PassID;
PassKind Kind;
void operator=(const Pass&); // DO NOT IMPLEMENT
Pass(const Pass &); // DO NOT IMPLEMENT
public:
- explicit Pass(PassKind K, intptr_t pid) : Resolver(0), PassID(pid), Kind(K) {
- assert(pid && "pid cannot be 0");
- }
- explicit Pass(PassKind K, const void *pid)
- : Resolver(0), PassID((intptr_t)pid), Kind(K) {
- assert(pid && "pid cannot be 0");
- }
+ explicit Pass(PassKind K, char &pid);
virtual ~Pass();
///
virtual const char *getPassName() const;
- /// getPassInfo - Return the PassInfo data structure that corresponds to this
- /// pass... If the pass has not been registered, this will return null.
- ///
- const PassInfo *getPassInfo() const;
+ /// getPassID - Return the PassID number that corresponds to this pass.
+ virtual AnalysisID getPassID() const {
+ return PassID;
+ }
/// 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
void dump() const; // dump - Print to stderr.
/// createPrinterPass - Get a Pass appropriate to print the IR this
- /// pass operates one (Module, Function or MachineFunction).
+ /// pass operates on (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) {}
+ PassManagerType) {}
/// Check if available pass managers are suitable for this pass or not.
virtual void preparePassManager(PMStack &);
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
/// 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 *) {
- return this;
- }
- virtual ImmutablePass *getAsImmutablePass() { return 0; }
- virtual PMDataManager *getAsPMDataManager() { return 0; }
+ virtual void *getAdjustedAnalysisPointer(AnalysisID ID);
+ virtual ImmutablePass *getAsImmutablePass();
+ virtual PMDataManager *getAsPMDataManager();
/// verifyAnalysis() - This member can be implemented by a analysis pass to
/// check state of analysis information.
// dumpPassStructure - Implement the -debug-passes=PassStructure option
virtual void dumpPassStructure(unsigned Offset = 0);
- template<typename AnalysisClass>
- static const PassInfo *getClassPassInfo() {
- return lookupPassInfo(intptr_t(&AnalysisClass::ID));
- }
-
// lookupPassInfo - Return the pass info object for the specified pass class,
// or null if it is not known.
- static const PassInfo *lookupPassInfo(intptr_t TI);
+ static const PassInfo *lookupPassInfo(const void *TI);
// lookupPassInfo - Return the pass info object for the pass with the given
// argument string, or null if it is not known.
/// don't have the class name available (use getAnalysisIfAvailable if you
/// do), but it can tell you if you need to preserve the pass at least.
///
- bool mustPreserveAnalysisID(const PassInfo *AnalysisID) const;
+ bool mustPreserveAnalysisID(char &AID) const;
/// getAnalysis<AnalysisType>() - This function is used by subclasses to get
/// to the analysis information that they claim to use by overriding the
AnalysisType &getAnalysis(Function &F); // Defined in PassAnalysisSupport.h
template<typename AnalysisType>
- AnalysisType &getAnalysisID(const PassInfo *PI) const;
+ AnalysisType &getAnalysisID(AnalysisID PI) const;
template<typename AnalysisType>
- AnalysisType &getAnalysisID(const PassInfo *PI, Function &F);
+ AnalysisType &getAnalysisID(AnalysisID PI, Function &F);
};
virtual bool runOnModule(Module &M) = 0;
virtual void assignPassManager(PMStack &PMS,
- PassManagerType T = PMT_ModulePassManager);
+ PassManagerType T);
/// Return what kind of Pass Manager can manage this pass.
virtual PassManagerType getPotentialPassManagerType() const;
- explicit ModulePass(intptr_t pid) : Pass(PT_Module, pid) {}
- explicit ModulePass(const void *pid) : Pass(PT_Module, pid) {}
+ explicit ModulePass(char &pid) : Pass(PT_Module, pid) {}
// Force out-of-line virtual method.
virtual ~ModulePass();
};
///
bool runOnModule(Module &) { return false; }
- explicit ImmutablePass(intptr_t pid) : ModulePass(pid) {}
- explicit ImmutablePass(const void *pid)
+ explicit ImmutablePass(char &pid)
: ModulePass(pid) {}
// Force out-of-line virtual method.
///
class FunctionPass : public Pass {
public:
- explicit FunctionPass(intptr_t pid) : Pass(PT_Function, pid) {}
- explicit FunctionPass(const void *pid) : Pass(PT_Function, pid) {}
+ explicit FunctionPass(char &pid) : Pass(PT_Function, pid) {}
/// createPrinterPass - Get a function printer pass.
Pass *createPrinterPass(raw_ostream &O, const std::string &Banner) const;
///
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
- /// finalizing.
- ///
- virtual bool runOnModule(Module &M);
-
- /// run - On a function, we simply initialize, run the function, then
- /// finalize.
- ///
- bool run(Function &F);
-
virtual void assignPassManager(PMStack &PMS,
- PassManagerType T = PMT_FunctionPassManager);
+ PassManagerType T);
/// Return what kind of Pass Manager can manage this pass.
virtual PassManagerType getPotentialPassManagerType() const;
///
class BasicBlockPass : public Pass {
public:
- explicit BasicBlockPass(intptr_t pid) : Pass(PT_BasicBlock, pid) {}
- explicit BasicBlockPass(const void *pid) : Pass(PT_BasicBlock, pid) {}
+ explicit BasicBlockPass(char &pid) : Pass(PT_BasicBlock, pid) {}
- /// createPrinterPass - Get a function printer pass.
+ /// createPrinterPass - Get a basic block printer pass.
Pass *createPrinterPass(raw_ostream &O, const std::string &Banner) const;
/// doInitialization - Virtual method overridden by subclasses to do
///
virtual bool doFinalization(Module &);
-
- // To run this pass on a function, we simply call runOnBasicBlock once for
- // each function.
- //
- bool runOnFunction(Function &F);
-
virtual void assignPassManager(PMStack &PMS,
- PassManagerType T = PMT_BasicBlockPassManager);
+ PassManagerType T);
/// Return what kind of Pass Manager can manage this pass.
virtual PassManagerType getPotentialPassManagerType() const;
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