X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FPassAnalysisSupport.h;h=c6ed179af61f9a3516a562cede022d84d9752f42;hb=5eca075b74d62c621b160aa216b4cd50829a2cc7;hp=f591400d272a2decbc25460e93e557c54c66d267;hpb=cccd80dfa316019047f053c55f1b94f63b17c043;p=oota-llvm.git diff --git a/include/llvm/PassAnalysisSupport.h b/include/llvm/PassAnalysisSupport.h index f591400d272..c6ed179af61 100644 --- a/include/llvm/PassAnalysisSupport.h +++ b/include/llvm/PassAnalysisSupport.h @@ -2,8 +2,8 @@ // // 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 is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// // @@ -20,6 +20,7 @@ #define LLVM_PASS_ANALYSIS_SUPPORT_H #include +#include "llvm/ADT/SmallVector.h" namespace llvm { @@ -34,9 +35,14 @@ namespace llvm { // Pass infrastructure through the getAnalysisUsage virtual function. // class AnalysisUsage { +public: + typedef SmallVector VectorType; + +private: // Sets of analyses required and preserved by a pass - std::vector Required, RequiredTransitive, Preserved; + VectorType Required, RequiredTransitive, Preserved; bool PreservesAll; + public: AnalysisUsage() : PreservesAll(false) {} @@ -44,24 +50,26 @@ public: // for a pass. // AnalysisUsage &addRequiredID(AnalysisID ID) { + assert(ID && "Pass class not registered!"); Required.push_back(ID); return *this; } template AnalysisUsage &addRequired() { - assert(Pass::getClassPassInfo() && "Pass class not registered!"); - Required.push_back(Pass::getClassPassInfo()); - return *this; + return addRequiredID(Pass::getClassPassInfo()); } - template - AnalysisUsage &addRequiredTransitive() { - AnalysisID ID = Pass::getClassPassInfo(); + AnalysisUsage &addRequiredTransitiveID(AnalysisID ID) { assert(ID && "Pass class not registered!"); Required.push_back(ID); RequiredTransitive.push_back(ID); return *this; } + template + AnalysisUsage &addRequiredTransitive() { + AnalysisID ID = Pass::getClassPassInfo(); + return addRequiredTransitiveID(ID); + } // addPreserved - Add the specified ID to the set of analyses preserved by // this pass @@ -93,11 +101,11 @@ public: /// void setPreservesCFG(); - const std::vector &getRequiredSet() const { return Required; } - const std::vector &getRequiredTransitiveSet() const { + const VectorType &getRequiredSet() const { return Required; } + const VectorType &getRequiredTransitiveSet() const { return RequiredTransitive; } - const std::vector &getPreservedSet() const { return Preserved; } + const VectorType &getPreservedSet() const { return Preserved; } }; //===----------------------------------------------------------------------===// @@ -106,12 +114,12 @@ public: // the pass. // class PMDataManager; -class AnalysisResolver_New { +class AnalysisResolver { private: - AnalysisResolver_New(); // DO NOT IMPLEMENT + AnalysisResolver(); // DO NOT IMPLEMENT public: - AnalysisResolver_New(PMDataManager &P) : PM(P) { } + explicit AnalysisResolver(PMDataManager &P) : PM(P) { } inline PMDataManager &getPMDataManager() { return PM; } @@ -127,6 +135,9 @@ public: return ResultPass; } + // Find pass that is implementing PI. Initialize pass for Function F. + Pass *findImplPass(Pass *P, const PassInfo *PI, Function &F); + void addAnalysisImplsPair(const PassInfo *PI, Pass *P) { std::pair pir = std::make_pair(PI,P); AnalysisImpls.push_back(pir); @@ -137,7 +148,7 @@ public: // AnalysisImpls - This keeps track of which passes implements the interfaces // that are required by the current pass (to implement getAnalysis()). - // NOTE : Remove AnalysisImpls from class Pass, when AnalysisResolver_New + // NOTE : Remove AnalysisImpls from class Pass, when AnalysisResolver // replaces AnalysisResolver std::vector > AnalysisImpls; @@ -146,37 +157,6 @@ private: PMDataManager ± }; -//===----------------------------------------------------------------------===// -// AnalysisResolver - Simple interface implemented by PassManager objects that -// is used to pull analysis information out of them. -// -struct AnalysisResolver { - virtual ~AnalysisResolver(); - virtual Pass *getAnalysisOrNullUp(AnalysisID ID) const = 0; - virtual Pass *getAnalysisOrNullDown(AnalysisID ID) const = 0; - virtual void addPass(ImmutablePass *IP, AnalysisUsage &AU) = 0; - Pass *getAnalysis(AnalysisID ID) const { - Pass *Result = getAnalysisOrNullUp(ID); - assert(Result && "Pass has an incorrect analysis uses set!"); - return Result; - } - - // getAnalysisToUpdate - Return an analysis result or null if it doesn't exist - Pass *getAnalysisToUpdate(AnalysisID ID) const { - return getAnalysisOrNullUp(ID); - } - - // Methods for introspecting into pass manager objects... - virtual unsigned getDepth() const = 0; - virtual unsigned getNumContainedPasses() const = 0; - virtual const Pass *getContainedPass(unsigned N) const = 0; - - virtual void markPassUsed(AnalysisID P, Pass *User) = 0; - - void startPass(Pass *P) {} - void endPass(Pass *P) {} -}; - /// getAnalysisToUpdate() - This function is used by subclasses /// to get to the analysis information that might be around that needs to be /// updated. This is different than getAnalysis in that it can fail (ie the @@ -187,12 +167,12 @@ struct AnalysisResolver { /// template AnalysisType *Pass::getAnalysisToUpdate() const { - assert(Resolver_New && "Pass not resident in a PassManager object!"); + assert(Resolver && "Pass not resident in a PassManager object!"); const PassInfo *PI = getClassPassInfo(); if (PI == 0) return 0; return dynamic_cast - (Resolver_New->getAnalysisToUpdate(PI, true)); + (Resolver->getAnalysisToUpdate(PI, true)); } /// getAnalysis() - This function is used by subclasses to get @@ -201,7 +181,7 @@ AnalysisType *Pass::getAnalysisToUpdate() const { /// template AnalysisType &Pass::getAnalysis() const { - assert(Resolver_New &&"Pass has not been inserted into a PassManager object!"); + assert(Resolver &&"Pass has not been inserted into a PassManager object!"); return getAnalysisID(getClassPassInfo()); } @@ -209,11 +189,11 @@ AnalysisType &Pass::getAnalysis() const { template AnalysisType &Pass::getAnalysisID(const PassInfo *PI) const { assert(PI && "getAnalysis for unregistered pass!"); - assert(Resolver_New&&"Pass has not been inserted into a PassManager object!"); + 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_New->findImplPass(PI); + Pass *ResultPass = Resolver->findImplPass(PI); assert (ResultPass && "getAnalysis*() called on an analysis that was not " "'required' by pass!"); @@ -228,6 +208,39 @@ AnalysisType &Pass::getAnalysisID(const PassInfo *PI) const { return *Result; } +/// getAnalysis() - This function is used by subclasses to get +/// to the analysis information that they claim to use by overriding the +/// getAnalysisUsage function. +/// +template +AnalysisType &Pass::getAnalysis(Function &F) { + assert(Resolver &&"Pass has not been inserted into a PassManager object!"); + + return getAnalysisID(getClassPassInfo(), F); +} + +template +AnalysisType &Pass::getAnalysisID(const PassInfo *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 && + "getAnalysis*() called on an analysis that was not " + "'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; +} + } // End llvm namespace #endif