X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FPass.h;h=9dc8643343def079626982e93392a70a3f70502f;hb=81a038218171860ee4c382849c647d3dc841fe8b;hp=15381ac978b13a245bdf4898cf770ca98e12340a;hpb=3162691f69f85f740bc28f3ddca39b166d35187c;p=oota-llvm.git diff --git a/include/llvm/Pass.h b/include/llvm/Pass.h index 15381ac978b..9dc8643343d 100644 --- a/include/llvm/Pass.h +++ b/include/llvm/Pass.h @@ -29,15 +29,14 @@ #ifndef LLVM_PASS_H #define LLVM_PASS_H +#include "llvm/Support/DataTypes.h" #include "llvm/Support/Streams.h" #include +#include #include #include -#include #include -#define USE_OLD_PASSMANAGER 1 - namespace llvm { class Value; @@ -47,26 +46,36 @@ class Module; class AnalysisUsage; class PassInfo; class ImmutablePass; -template class PassManagerT; -class BasicBlockPassManager; -class FunctionPassManagerT; -class ModulePassManager; -struct AnalysisResolver; -class AnalysisResolver_New; +class PMStack; +class AnalysisResolver; +class PMDataManager; // AnalysisID - Use the PassInfo to identify a pass... typedef const PassInfo* AnalysisID; +/// Different types of internal pass managers. External pass managers +/// (PassManager and FunctionPassManager) are not represented here. +/// 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_Last +}; + +typedef enum PassManagerType PassManagerType; + //===----------------------------------------------------------------------===// /// Pass interface - Implemented by all 'passes'. Subclass this if you are an /// interprocedural optimization or you do not fit into any of the more /// constrained passes described below. /// class Pass { - friend struct AnalysisResolver; - AnalysisResolver *Resolver; // AnalysisResolver this pass is owned by... - AnalysisResolver_New *Resolver_New; // Used to resolve analysis - const PassInfo *PassInfoCache; + AnalysisResolver *Resolver; // Used to resolve analysis + intptr_t PassID; // AnalysisImpls - This keeps track of which passes implement the interfaces // that are required by the current pass (to implement getAnalysis()). @@ -76,8 +85,9 @@ class Pass { void operator=(const Pass&); // DO NOT IMPLEMENT Pass(const Pass &); // DO NOT IMPLEMENT public: - Pass() : Resolver(0), Resolver_New(0), PassInfoCache(0) {} - virtual ~Pass() {} // Destructor is virtual so we can be subclassed + explicit Pass(intptr_t pid) : Resolver(0), PassID(pid) {} + explicit Pass(const void *pid) : Resolver(0), PassID((intptr_t)pid) {} + virtual ~Pass(); /// getPassName - Return a nice clean name for a pass. This usually /// implemented in terms of the name that is registered by one of the @@ -105,15 +115,31 @@ public: /// provide the Module* in case the analysis doesn't need it it can just be /// ignored. /// - void print(OStream &O, const Module *M) const { - if (O.stream()) print(*O.stream(), M); - } virtual void print(std::ostream &O, const Module *M) const; + void print(std::ostream *O, const Module *M) const { if (O) print(*O, M); } void dump() const; // dump - call print(std::cerr, 0); - // Access AnalysisResolver_New - inline void setResolver(AnalysisResolver_New *AR) { Resolver_New = AR; } - inline AnalysisResolver_New *getResolver() { return Resolver_New; } + /// Each pass is responsible for assigning a pass manager to itself. + /// PMS is the stack of available pass manager. + virtual void assignPassManager(PMStack &PMS, + PassManagerType T = PMT_Unknown) {} + /// Check if available pass managers are suitable for this pass or not. + virtual void preparePassManager(PMStack &PMS) {} + + /// Return what kind of Pass Manager can manage this pass. + virtual PassManagerType getPotentialPassManagerType() const { + return PMT_Unknown; + } + + // Access AnalysisResolver + inline void setResolver(AnalysisResolver *AR) { + assert (!Resolver && "Resolver is already set"); + Resolver = AR; + } + inline AnalysisResolver *getResolver() { + assert (Resolver && "Resolver is not set"); + 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 @@ -137,19 +163,21 @@ public: /// virtual void releaseMemory() {} + /// verifyAnalysis() - This member can be implemented by a analysis pass to + /// check state of analysis information. + virtual void verifyAnalysis() const {} + // dumpPassStructure - Implement the -debug-passes=PassStructure option virtual void dumpPassStructure(unsigned Offset = 0); - - // getPassInfo - Static method to get the pass information from a class name. template static const PassInfo *getClassPassInfo() { - return lookupPassInfo(typeid(AnalysisClass)); + 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(const std::type_info &TI); + static const PassInfo *lookupPassInfo(intptr_t TI); /// getAnalysisToUpdate() - This function is used by subclasses /// to get to the analysis information that might be around that needs to be @@ -177,14 +205,14 @@ public: template AnalysisType &getAnalysis() const; // Defined in PassAnalysisSupport.h + template + AnalysisType &getAnalysis(Function &F); // Defined in PassanalysisSupport.h + template AnalysisType &getAnalysisID(const PassInfo *PI) const; - -private: - template friend class PassManagerT; - friend class ModulePassManager; - friend class FunctionPassManagerT; - friend class BasicBlockPassManager; + + template + AnalysisType &getAnalysisID(const PassInfo *PI, Function &F); }; inline std::ostream &operator<<(std::ostream &OS, const Pass &P) { @@ -205,9 +233,18 @@ public: virtual bool runPass(Module &M) { return runOnModule(M); } virtual bool runPass(BasicBlock&) { return false; } -#ifdef USE_OLD_PASSMANAGER - virtual void addToPassManager(ModulePassManager *PM, AnalysisUsage &AU); -#endif + virtual void assignPassManager(PMStack &PMS, + PassManagerType T = PMT_ModulePassManager); + + /// Return what kind of Pass Manager can manage this pass. + virtual PassManagerType getPotentialPassManagerType() const { + return PMT_ModulePassManager; + } + + explicit ModulePass(intptr_t pid) : Pass(pid) {} + explicit ModulePass(const void *pid) : Pass(pid) {} + // Force out-of-line virtual method. + virtual ~ModulePass(); }; @@ -228,14 +265,13 @@ public: /// ImmutablePasses are never run. /// - virtual bool runOnModule(Module &M) { return false; } + bool runOnModule(Module &M) { return false; } -#ifdef USE_OLD_PASSMANAGER -private: - template friend class PassManagerT; - friend class ModulePassManager; - virtual void addToPassManager(ModulePassManager *PM, AnalysisUsage &AU); -#endif + explicit ImmutablePass(intptr_t pid) : ModulePass(pid) {} + explicit ImmutablePass(const void *pid) : ModulePass(pid) {} + + // Force out-of-line virtual method. + virtual ~ImmutablePass(); }; //===----------------------------------------------------------------------===// @@ -247,8 +283,11 @@ private: /// 2. Optimizing a function does not cause the addition or removal of any /// functions in the module /// -class FunctionPass : public ModulePass { +class FunctionPass : public Pass { public: + explicit FunctionPass(intptr_t pid) : Pass(pid) {} + explicit FunctionPass(const void *pid) : Pass(pid) {} + /// doInitialization - Virtual method overridden by subclasses to do /// any necessary per-module initialization. /// @@ -275,15 +314,13 @@ public: /// bool run(Function &F); -#ifdef USE_OLD_PASSMANAGER -protected: - template friend class PassManagerT; - friend class ModulePassManager; - friend class FunctionPassManagerT; - friend class BasicBlockPassManager; - virtual void addToPassManager(ModulePassManager *PM, AnalysisUsage &AU); - virtual void addToPassManager(FunctionPassManagerT *PM, AnalysisUsage &AU); -#endif + virtual void assignPassManager(PMStack &PMS, + PassManagerType T = PMT_FunctionPassManager); + + /// Return what kind of Pass Manager can manage this pass. + virtual PassManagerType getPotentialPassManagerType() const { + return PMT_FunctionPassManager; + } }; @@ -298,8 +335,11 @@ protected: /// other basic block in the function. /// 3. Optimizations conform to all of the constraints of FunctionPasses. /// -class BasicBlockPass : public FunctionPass { +class BasicBlockPass : public Pass { public: + explicit BasicBlockPass(intptr_t pid) : Pass(pid) {} + explicit BasicBlockPass(const void *pid) : Pass(pid) {} + /// doInitialization - Virtual method overridden by subclasses to do /// any necessary per-module initialization. /// @@ -337,19 +377,42 @@ public: virtual bool runPass(Module &M) { return false; } virtual bool runPass(BasicBlock &BB); -#ifdef USE_OLD_PASSMANAGER -private: - template friend class PassManagerT; - friend class FunctionPassManagerT; - friend class BasicBlockPassManager; - virtual void addToPassManager(ModulePassManager *PM, AnalysisUsage &AU) { - FunctionPass::addToPassManager(PM, AU); + virtual void assignPassManager(PMStack &PMS, + PassManagerType T = PMT_BasicBlockPassManager); + + /// Return what kind of Pass Manager can manage this pass. + virtual PassManagerType getPotentialPassManagerType() const { + return PMT_BasicBlockPassManager; } - virtual void addToPassManager(FunctionPassManagerT *PM, AnalysisUsage &AU); - virtual void addToPassManager(BasicBlockPassManager *PM,AnalysisUsage &AU); -#endif }; +/// PMStack +/// Top level pass manager (see PasManager.cpp) maintains active Pass Managers +/// using PMStack. Each Pass implements assignPassManager() to connect itself +/// with appropriate manager. assignPassManager() walks PMStack to find +/// suitable manager. +/// +/// PMStack is just a wrapper around standard deque that overrides pop() and +/// push() methods. +class PMStack { +public: + typedef std::deque::reverse_iterator iterator; + iterator begin() { return S.rbegin(); } + iterator end() { return S.rend(); } + + void handleLastUserOverflow(); + + void pop(); + inline PMDataManager *top() { return S.back(); } + void push(Pass *P); + inline bool empty() { return S.empty(); } + + void dump(); +private: + std::deque S; +}; + + /// If the user specifies the -time-passes argument on an LLVM tool command line /// then the value of this boolean will be true, otherwise false. /// @brief This is the storage for the -time-passes option.