X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FPassAnalysisSupport.h;h=a3342d51386be8dd055ac180d045e5ec8b64bae6;hb=35fcd6557f53aab69c2990b80fed4653fbaa3473;hp=f339481c1edea8ed5db3954643f1fb6f10d01bf2;hpb=8a261e44f71a433b7d9af373c3e3dfa6fea67146;p=oota-llvm.git diff --git a/include/llvm/PassAnalysisSupport.h b/include/llvm/PassAnalysisSupport.h index f339481c1ed..a3342d51386 100644 --- a/include/llvm/PassAnalysisSupport.h +++ b/include/llvm/PassAnalysisSupport.h @@ -19,15 +19,12 @@ #ifndef LLVM_PASS_ANALYSIS_SUPPORT_H #define LLVM_PASS_ANALYSIS_SUPPORT_H -#include #include "llvm/ADT/SmallVector.h" +#include "llvm/ADT/StringRef.h" +#include namespace llvm { -class StringRef; - -// No need to include Pass.h, we are being included by it! - //===----------------------------------------------------------------------===// // AnalysisUsage - Represent the analysis usage information of a pass. This // tracks analyses that the pass REQUIRES (must be available when the pass @@ -51,43 +48,37 @@ public: // addRequired - Add the specified ID to the required set of the usage info // for a pass. // - AnalysisUsage &addRequiredID(AnalysisID ID) { - assert(ID && "Pass class not registered!"); - Required.push_back(ID); - return *this; - } + AnalysisUsage &addRequiredID(const void *ID); + AnalysisUsage &addRequiredID(char &ID); template AnalysisUsage &addRequired() { - return addRequiredID(Pass::getClassPassInfo()); + return addRequiredID(PassClass::ID); } - AnalysisUsage &addRequiredTransitiveID(AnalysisID ID) { - assert(ID && "Pass class not registered!"); - Required.push_back(ID); - RequiredTransitive.push_back(ID); - return *this; - } + AnalysisUsage &addRequiredTransitiveID(char &ID); template AnalysisUsage &addRequiredTransitive() { - AnalysisID ID = Pass::getClassPassInfo(); - return addRequiredTransitiveID(ID); + return addRequiredTransitiveID(PassClass::ID); } // addPreserved - Add the specified ID to the set of analyses preserved by // this pass // - AnalysisUsage &addPreservedID(AnalysisID ID) { + AnalysisUsage &addPreservedID(const void *ID) { Preserved.push_back(ID); return *this; } + AnalysisUsage &addPreservedID(char &ID) { + Preserved.push_back(&ID); + return *this; + } // addPreserved - Add the specified Pass class to the set of analyses // preserved by this pass. // template AnalysisUsage &addPreserved() { - assert(Pass::getClassPassInfo() && "Pass class not registered!"); - Preserved.push_back(Pass::getClassPassInfo()); + Preserved.push_back(&PassClass::ID); return *this; } @@ -96,12 +87,7 @@ public: // This can be useful when a pass is trivially preserved, but may not be // linked in. Be careful about spelling! // - AnalysisUsage &addPreserved(const StringRef &Arg) { - const PassInfo *PI = Pass::lookupPassInfo(Arg); - // If the pass exists, preserve it. Otherwise silently do nothing. - if (PI) Preserved.push_back(PI); - return *this; - } + AnalysisUsage &addPreserved(StringRef Arg); // setPreservesAll - Set by analyses that do not transform their input at all void setPreservesAll() { PreservesAll = true; } @@ -141,7 +127,7 @@ public: inline PMDataManager &getPMDataManager() { return PM; } // Find pass that is implementing PI. - Pass *findImplPass(const PassInfo *PI) { + Pass *findImplPass(AnalysisID PI) { Pass *ResultPass = 0; for (unsigned i = 0; i < AnalysisImpls.size() ; ++i) { if (AnalysisImpls[i].first == PI) { @@ -153,10 +139,10 @@ public: } // Find pass that is implementing PI. Initialize pass for Function F. - Pass *findImplPass(Pass *P, const PassInfo *PI, Function &F); + Pass *findImplPass(Pass *P, AnalysisID PI, Function &F); - void addAnalysisImplsPair(const PassInfo *PI, Pass *P) { - std::pair pir = std::make_pair(PI,P); + void addAnalysisImplsPair(AnalysisID PI, Pass *P) { + std::pair pir = std::make_pair(PI,P); AnalysisImpls.push_back(pir); } @@ -169,11 +155,11 @@ public: // getAnalysisIfAvailable - Return analysis result or null if it doesn't exist Pass *getAnalysisIfAvailable(AnalysisID ID, bool Direction) const; +private: // AnalysisImpls - This keeps track of which passes implements the interfaces // that are required by the current pass (to implement getAnalysis()). - std::vector > AnalysisImpls; + std::vector > AnalysisImpls; -private: // PassManager that is used to resolve analysis info PMDataManager &PM; }; @@ -190,10 +176,16 @@ template AnalysisType *Pass::getAnalysisIfAvailable() const { assert(Resolver && "Pass not resident in a PassManager object!"); - const PassInfo *PI = getClassPassInfo(); - if (PI == 0) return 0; - return dynamic_cast - (Resolver->getAnalysisIfAvailable(PI, true)); + const void *PI = &AnalysisType::ID; + + Pass *ResultPass = Resolver->getAnalysisIfAvailable(PI, true); + if (ResultPass == 0) return 0; + + // Because the AnalysisType may not be a subclass of pass (for + // AnalysisGroups), we use getAdjustedAnalysisPointer here to potentially + // adjust the return pointer (because the class may multiply inherit, once + // from pass, once from AnalysisType). + return (AnalysisType*)ResultPass->getAdjustedAnalysisPointer(PI); } /// getAnalysis() - This function is used by subclasses to get @@ -202,13 +194,12 @@ AnalysisType *Pass::getAnalysisIfAvailable() const { /// template AnalysisType &Pass::getAnalysis() const { - assert(Resolver &&"Pass has not been inserted into a PassManager object!"); - - return getAnalysisID(getClassPassInfo()); + assert(Resolver && "Pass has not been inserted into a PassManager object!"); + return getAnalysisID(&AnalysisType::ID); } template -AnalysisType &Pass::getAnalysisID(const PassInfo *PI) const { +AnalysisType &Pass::getAnalysisID(AnalysisID PI) const { assert(PI && "getAnalysis for unregistered pass!"); assert(Resolver&&"Pass has not been inserted into a PassManager object!"); // PI *must* appear in AnalysisImpls. Because the number of passes used @@ -220,13 +211,10 @@ AnalysisType &Pass::getAnalysisID(const PassInfo *PI) const { "'required' by pass!"); // Because the AnalysisType may not be a subclass of pass (for - // AnalysisGroups), we must use dynamic_cast here to potentially adjust the - // return pointer (because the class may multiply inherit, once from pass, - // once from AnalysisType). - // - AnalysisType *Result = dynamic_cast(ResultPass); - assert(Result && "Pass does not implement interface required!"); - return *Result; + // AnalysisGroups), we use getAdjustedAnalysisPointer here to potentially + // adjust the return pointer (because the class may multiply inherit, once + // from pass, once from AnalysisType). + return *(AnalysisType*)ResultPass->getAdjustedAnalysisPointer(PI); } /// getAnalysis() - This function is used by subclasses to get @@ -237,27 +225,24 @@ template AnalysisType &Pass::getAnalysis(Function &F) { assert(Resolver &&"Pass has not been inserted into a PassManager object!"); - return getAnalysisID(getClassPassInfo(), F); + return getAnalysisID(&AnalysisType::ID, F); } template -AnalysisType &Pass::getAnalysisID(const PassInfo *PI, Function &F) { +AnalysisType &Pass::getAnalysisID(AnalysisID PI, Function &F) { assert(PI && "getAnalysis for unregistered pass!"); assert(Resolver && "Pass has not been inserted into a PassManager object!"); // PI *must* appear in AnalysisImpls. Because the number of passes used // should be a small number, we just do a linear search over a (dense) // vector. Pass *ResultPass = Resolver->findImplPass(this, PI, F); - assert (ResultPass && "Unable to find requested analysis info"); + assert(ResultPass && "Unable to find requested analysis info"); // Because the AnalysisType may not be a subclass of pass (for - // AnalysisGroups), we must use dynamic_cast here to potentially adjust the - // return pointer (because the class may multiply inherit, once from pass, - // once from AnalysisType). - // - AnalysisType *Result = dynamic_cast(ResultPass); - assert(Result && "Pass does not implement interface required!"); - return *Result; + // AnalysisGroups), we use getAdjustedAnalysisPointer here to potentially + // adjust the return pointer (because the class may multiply inherit, once + // from pass, once from AnalysisType). + return *(AnalysisType*)ResultPass->getAdjustedAnalysisPointer(PI); } } // End llvm namespace