PassManager.cpp revision df1a10ece6a75f230d98c6fb001349eede90387a
155fd43f90913676682487f89f27c756adb827f66Devang Patel//===- PassManager.cpp - LLVM Pass Infrastructure Implementation ----------===// 255fd43f90913676682487f89f27c756adb827f66Devang Patel// 355fd43f90913676682487f89f27c756adb827f66Devang Patel// The LLVM Compiler Infrastructure 455fd43f90913676682487f89f27c756adb827f66Devang Patel// 5c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel// This file was developed by Devang Patel and is distributed under 655fd43f90913676682487f89f27c756adb827f66Devang Patel// the University of Illinois Open Source License. See LICENSE.TXT for details. 755fd43f90913676682487f89f27c756adb827f66Devang Patel// 855fd43f90913676682487f89f27c756adb827f66Devang Patel//===----------------------------------------------------------------------===// 955fd43f90913676682487f89f27c756adb827f66Devang Patel// 1055fd43f90913676682487f89f27c756adb827f66Devang Patel// This file implements the LLVM Pass Manager infrastructure. 1155fd43f90913676682487f89f27c756adb827f66Devang Patel// 1255fd43f90913676682487f89f27c756adb827f66Devang Patel//===----------------------------------------------------------------------===// 1355fd43f90913676682487f89f27c756adb827f66Devang Patel 1455fd43f90913676682487f89f27c756adb827f66Devang Patel 1555fd43f90913676682487f89f27c756adb827f66Devang Patel#include "llvm/PassManager.h" 1655fd43f90913676682487f89f27c756adb827f66Devang Patel#include "llvm/Module.h" 1785d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel#include <vector> 18b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel#include <map> 1955fd43f90913676682487f89f27c756adb827f66Devang Patel 2055fd43f90913676682487f89f27c756adb827f66Devang Patelusing namespace llvm; 2155fd43f90913676682487f89f27c756adb827f66Devang Patel 22c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelnamespace llvm { 23c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 2485d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel/// CommonPassManagerImpl helps pass manager analysis required by 2585d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel/// the managed passes. It provides methods to add/remove analysis 2685d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel/// available and query if certain analysis is available or not. 2785d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patelclass CommonPassManagerImpl : public Pass { 2885d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 2985d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patelpublic: 3085d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 3185d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel /// Return true IFF pass P's required analysis set does not required new 3285d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel /// manager. 3385d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel bool manageablePass(Pass *P); 3485d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 35b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel Pass *getAnalysisPass(AnalysisID AID) const { 36b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel 37b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel std::map<AnalysisID, Pass*>::const_iterator I = 38b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel AvailableAnalysis.find(AID); 39b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel 40b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel if (I != AvailableAnalysis.end()) 41b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel return NULL; 42b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel else 43b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel return I->second; 44be6d515f481756ff549f355e32be1ac398e141d5Devang Patel } 4585d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 4685d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel /// Augment RequiredAnalysis by adding analysis required by pass P. 4785d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel void noteDownRequiredAnalysis(Pass *P); 4885d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 4985d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel /// Augment AvailableAnalysis by adding analysis made available by pass P. 5085d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel void noteDownAvailableAnalysis(Pass *P); 5185d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 5285d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel /// Remove Analysis that is not preserved by the pass 5385d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel void removeNotPreservedAnalysis(Pass *P); 5485d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 5585d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel /// Remove dead passes 56df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel void removeDeadPasses(Pass *P); 5785d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 58e253385b108cd946b1ac150302f246d3b218be77Devang Patel /// Add pass P into the PassVector. Update RequiredAnalysis and 59893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel /// AvailableAnalysis appropriately if ProcessAnalysis is true. 60893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel void addPassToManager (Pass *P, bool ProcessAnalysis = true); 61e253385b108cd946b1ac150302f246d3b218be77Devang Patel 62c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel /// Clear analysis vectors RequiredAnalysis and AvailableAnalysis. 63c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel /// This is used before running passes managed by the manager. 64c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel void clearAnalysis() { 65c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel RequiredAnalysis.clear(); 66c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel AvailableAnalysis.clear(); 6703153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel LastUser.clear(); 68c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel } 69c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 70b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel // All Required analyses should be available to the pass as it runs! Here 71b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel // we fill in the AnalysisImpls member of the pass so that it can 72b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel // successfully use the getAnalysis() method to retrieve the 73b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel // implementations it needs. 74b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel // 75b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel inline void initializeAnalysisImpl(Pass *P) { /* TODO : Implement */ } 76b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel 77e253385b108cd946b1ac150302f246d3b218be77Devang Patel inline std::vector<Pass *>::iterator passVectorBegin() { 78e253385b108cd946b1ac150302f246d3b218be77Devang Patel return PassVector.begin(); 79e253385b108cd946b1ac150302f246d3b218be77Devang Patel } 80e253385b108cd946b1ac150302f246d3b218be77Devang Patel 81e253385b108cd946b1ac150302f246d3b218be77Devang Patel inline std::vector<Pass *>::iterator passVectorEnd() { 82e253385b108cd946b1ac150302f246d3b218be77Devang Patel return PassVector.end(); 83e253385b108cd946b1ac150302f246d3b218be77Devang Patel } 84e253385b108cd946b1ac150302f246d3b218be77Devang Patel 8503153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel inline void setLastUser(Pass *P, Pass *LU) { LastUser[P] = LU; } 8603153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel 8785d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patelprivate: 885770c7cd52d6a3dfd9a5815cc9153d94afc6dd31Devang Patel // Analysis required by the passes managed by this manager. This information 895770c7cd52d6a3dfd9a5815cc9153d94afc6dd31Devang Patel // used while selecting pass manager during addPass. If a pass does not 905770c7cd52d6a3dfd9a5815cc9153d94afc6dd31Devang Patel // preserve any analysis required by other passes managed by current 915770c7cd52d6a3dfd9a5815cc9153d94afc6dd31Devang Patel // pass manager then new pass manager is used. 9285d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel std::vector<AnalysisID> RequiredAnalysis; 9385d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 945770c7cd52d6a3dfd9a5815cc9153d94afc6dd31Devang Patel // Set of available Analysis. This information is used while scheduling 955770c7cd52d6a3dfd9a5815cc9153d94afc6dd31Devang Patel // pass. If a pass requires an analysis which is not not available then 965770c7cd52d6a3dfd9a5815cc9153d94afc6dd31Devang Patel // equired analysis pass is scheduled to run before the pass itself is 975770c7cd52d6a3dfd9a5815cc9153d94afc6dd31Devang Patel // scheduled to run. 98b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel std::map<AnalysisID, Pass*> AvailableAnalysis; 99e253385b108cd946b1ac150302f246d3b218be77Devang Patel 10003153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel // Map to keep track of last user of the analysis pass. 10103153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel // LastUser->second is the last user of Lastuser->first. 10203153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel std::map<Pass *, Pass *> LastUser; 10303153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel 104e253385b108cd946b1ac150302f246d3b218be77Devang Patel // Collection of pass that are managed by this manager 105e253385b108cd946b1ac150302f246d3b218be77Devang Patel std::vector<Pass *> PassVector; 10685d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel}; 10785d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 108c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// BasicBlockPassManager_New manages BasicBlockPass. It batches all the 109c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// pass together and sequence them to process one basic block before 110c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// processing next basic block. 11137a84c7d8bda439082b883e33be6ab88b4cce236Devang Patelclass BasicBlockPassManager_New : public CommonPassManagerImpl { 112c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 113c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelpublic: 114c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel BasicBlockPassManager_New() { } 115c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 116c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// Add a pass into a passmanager queue. 117c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel bool addPass(Pass *p); 118c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 119c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// Execute all of the passes scheduled for execution. Keep track of 120c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// whether any of the passes modifies the function, and if so, return true. 121c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel bool runOnFunction(Function &F); 122c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 123be6d515f481756ff549f355e32be1ac398e141d5Devang Patel /// Return true IFF AnalysisID AID is currently available. 12403153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel Pass *getAnalysisPassFromManager(AnalysisID AID); 125be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 126c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelprivate: 127c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel}; 128c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 129c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// FunctionPassManagerImpl_New manages FunctionPasses and BasicBlockPassManagers. 130c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// It batches all function passes and basic block pass managers together and 131c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// sequence them to process one function at a time before processing next 132c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// function. 13337a84c7d8bda439082b883e33be6ab88b4cce236Devang Patelclass FunctionPassManagerImpl_New : public CommonPassManagerImpl { 134c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelpublic: 135c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel FunctionPassManagerImpl_New(ModuleProvider *P) { /* TODO */ } 136c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel FunctionPassManagerImpl_New() { 137c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel activeBBPassManager = NULL; 138c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel } 139c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel ~FunctionPassManagerImpl_New() { /* TODO */ }; 140c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 141c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// add - Add a pass to the queue of passes to run. This passes 142c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// ownership of the Pass to the PassManager. When the 143c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// PassManager_X is destroyed, the pass will be destroyed as well, so 144c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// there is no need to delete the pass. (TODO delete passes.) 145c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// This implies that all passes MUST be allocated with 'new'. 146c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel void add(Pass *P) { /* TODO*/ } 147c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 148c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// Add pass into the pass manager queue. 149c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel bool addPass(Pass *P); 150c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 151c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// Execute all of the passes scheduled for execution. Keep 152c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// track of whether any of the passes modifies the function, and if 153c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// so, return true. 154c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel bool runOnModule(Module &M); 155c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 156be6d515f481756ff549f355e32be1ac398e141d5Devang Patel /// Return true IFF AnalysisID AID is currently available. 15703153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel Pass *getAnalysisPassFromManager(AnalysisID AID); 158be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 159c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelprivate: 160c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel // Active Pass Managers 161c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel BasicBlockPassManager_New *activeBBPassManager; 162c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel}; 163c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 164c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// ModulePassManager_New manages ModulePasses and function pass managers. 165c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// It batches all Module passes passes and function pass managers together and 166c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// sequence them to process one module. 16737a84c7d8bda439082b883e33be6ab88b4cce236Devang Patelclass ModulePassManager_New : public CommonPassManagerImpl { 168c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 169c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelpublic: 170c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel ModulePassManager_New() { activeFunctionPassManager = NULL; } 171c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 172c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// Add a pass into a passmanager queue. 173c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel bool addPass(Pass *p); 174c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 175c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// run - Execute all of the passes scheduled for execution. Keep track of 176c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// whether any of the passes modifies the module, and if so, return true. 177c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel bool runOnModule(Module &M); 178be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 179be6d515f481756ff549f355e32be1ac398e141d5Devang Patel /// Return true IFF AnalysisID AID is currently available. 18003153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel Pass *getAnalysisPassFromManager(AnalysisID AID); 181c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 182c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelprivate: 183c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel // Active Pass Manager 184c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel FunctionPassManagerImpl_New *activeFunctionPassManager; 185c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel}; 186c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 1875a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// PassManager_New manages ModulePassManagers 18837a84c7d8bda439082b883e33be6ab88b4cce236Devang Patelclass PassManagerImpl_New : public CommonPassManagerImpl { 1895a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 1905a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patelpublic: 1915a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 1925a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// add - Add a pass to the queue of passes to run. This passes ownership of 1935a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// the Pass to the PassManager. When the PassManager is destroyed, the pass 1945a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// will be destroyed as well, so there is no need to delete the pass. This 1955a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// implies that all passes MUST be allocated with 'new'. 1965a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel void add(Pass *P); 1975a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 1985a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// run - Execute all of the passes scheduled for execution. Keep track of 1995a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// whether any of the passes modifies the module, and if so, return true. 2005a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel bool run(Module &M); 2015a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 202be6d515f481756ff549f355e32be1ac398e141d5Devang Patel /// Return true IFF AnalysisID AID is currently available. 20303153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel Pass *getAnalysisPassFromManager(AnalysisID AID); 204be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 2055a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patelprivate: 2065a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 2075a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// Add a pass into a passmanager queue. This is used by schedulePasses 2085a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel bool addPass(Pass *p); 2095a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 210f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel /// Schedule pass P for execution. Make sure that passes required by 211f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel /// P are run before P is run. Update analysis info maintained by 212f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel /// the manager. Remove dead passes. This is a recursive function. 213f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel void schedulePass(Pass *P); 214f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel 2155a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// Schedule all passes collected in pass queue using add(). Add all the 2165a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// schedule passes into various manager's queue using addPass(). 2175a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel void schedulePasses(); 2185a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 2195a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel // Collection of pass managers 2205a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel std::vector<ModulePassManager_New *> PassManagers; 2215a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 2225a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel // Active Pass Manager 2235a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel ModulePassManager_New *activeManager; 2245a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel}; 2255a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 226c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel} // End of llvm namespace 227c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 22837a84c7d8bda439082b883e33be6ab88b4cce236Devang Patel// CommonPassManagerImpl implementation 229889739c4d188d28c167644bced9df0f3131317d7Devang Patel 2302c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel/// Return true IFF pass P's required analysis set does not required new 231889739c4d188d28c167644bced9df0f3131317d7Devang Patel/// manager. 23237a84c7d8bda439082b883e33be6ab88b4cce236Devang Patelbool CommonPassManagerImpl::manageablePass(Pass *P) { 233889739c4d188d28c167644bced9df0f3131317d7Devang Patel 234889739c4d188d28c167644bced9df0f3131317d7Devang Patel AnalysisUsage AnUsage; 235889739c4d188d28c167644bced9df0f3131317d7Devang Patel P->getAnalysisUsage(AnUsage); 236889739c4d188d28c167644bced9df0f3131317d7Devang Patel 237a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel // If this pass is not preserving information that is required by the other 238a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel // passes managed by this manager then use new manager 239a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel if (!AnUsage.getPreservesAll()) { 240a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel const std::vector<AnalysisID> &PreservedSet = AnUsage.getPreservedSet(); 241a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel for (std::vector<AnalysisID>::iterator I = RequiredAnalysis.begin(), 242a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel E = RequiredAnalysis.end(); I != E; ++I) { 243a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel if (std::find(PreservedSet.begin(), PreservedSet.end(), *I) == 244a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel PreservedSet.end()) 245a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel // This analysis is not preserved. Need new manager. 246a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel return false; 247a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel } 248a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel } 249889739c4d188d28c167644bced9df0f3131317d7Devang Patel return true; 250889739c4d188d28c167644bced9df0f3131317d7Devang Patel} 251889739c4d188d28c167644bced9df0f3131317d7Devang Patel 252b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel/// Augment RequiredAnalysis by adding analysis required by pass P. 25337a84c7d8bda439082b883e33be6ab88b4cce236Devang Patelvoid CommonPassManagerImpl::noteDownRequiredAnalysis(Pass *P) { 254a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel AnalysisUsage AnUsage; 255a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel P->getAnalysisUsage(AnUsage); 256a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel const std::vector<AnalysisID> &RequiredSet = AnUsage.getRequiredSet(); 257889739c4d188d28c167644bced9df0f3131317d7Devang Patel 258a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel // FIXME: What about duplicates ? 25914d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel RequiredAnalysis.insert(RequiredAnalysis.end(), RequiredSet.begin(), 26014d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel RequiredSet.end()); 261889739c4d188d28c167644bced9df0f3131317d7Devang Patel} 262889739c4d188d28c167644bced9df0f3131317d7Devang Patel 263b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel/// Augement AvailableAnalysis by adding analysis made available by pass P. 264b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patelvoid CommonPassManagerImpl::noteDownAvailableAnalysis(Pass *P) { 265b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel 266b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel if (const PassInfo *PI = P->getPassInfo()) { 267b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel AvailableAnalysis[PI] = P; 268b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel 269b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel //TODO This pass is the current implementation of all of the interfaces it 270b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel //TODO implements as well. 271b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel //TODO 272b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel //TODO const std::vector<const PassInfo*> &II = PI->getInterfacesImplemented(); 273b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel //TODO for (unsigned i = 0, e = II.size(); i != e; ++i) 274b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel //TODO CurrentAnalyses[II[i]] = P; 275b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel } 276b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel} 277b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel 278889739c4d188d28c167644bced9df0f3131317d7Devang Patel/// Remove Analyss not preserved by Pass P 27937a84c7d8bda439082b883e33be6ab88b4cce236Devang Patelvoid CommonPassManagerImpl::removeNotPreservedAnalysis(Pass *P) { 28014d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel AnalysisUsage AnUsage; 28114d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel P->getAnalysisUsage(AnUsage); 28214d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel const std::vector<AnalysisID> &PreservedSet = AnUsage.getPreservedSet(); 28314d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel 284b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel for (std::map<AnalysisID, Pass*>::iterator I = AvailableAnalysis.begin(), 28514d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel E = AvailableAnalysis.end(); I != E; ++I ) { 286b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel if (std::find(PreservedSet.begin(), PreservedSet.end(), I->first) == 28714d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel PreservedSet.end()) { 28814d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel // Remove this analysis 289b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel std::map<AnalysisID, Pass*>::iterator J = I++; 29014d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel AvailableAnalysis.erase(J); 29114d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel } 29214d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel } 293889739c4d188d28c167644bced9df0f3131317d7Devang Patel} 294889739c4d188d28c167644bced9df0f3131317d7Devang Patel 295df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel/// Remove analysis passes that are not used any longer 296df1a10ece6a75f230d98c6fb001349eede90387aDevang Patelvoid CommonPassManagerImpl::removeDeadPasses(Pass *P) { 297df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel 298df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel for (std::map<Pass *, Pass *>::iterator I = LastUser.begin(), 299df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel E = LastUser.end(); I !=E; ++I) { 300df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel if (I->second == P) { 301df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel Pass *deadPass = I->first; 302df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel deadPass->releaseMemory(); 303df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel 304df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel std::map<AnalysisID, Pass*>::iterator Pos = 305df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel AvailableAnalysis.find(deadPass->getPassInfo()); 306df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel 307df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel assert (Pos != AvailableAnalysis.end() && 308df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel "Pass is not available"); 309df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel AvailableAnalysis.erase(Pos); 310df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel } 311df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel } 312df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel} 313df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel 314e253385b108cd946b1ac150302f246d3b218be77Devang Patel/// Add pass P into the PassVector. Update RequiredAnalysis and 315893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel/// AvailableAnalysis appropriately if ProcessAnalysis is true. 316893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patelvoid CommonPassManagerImpl::addPassToManager (Pass *P, 317893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel bool ProcessAnalysis) { 318e253385b108cd946b1ac150302f246d3b218be77Devang Patel 319893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel if (ProcessAnalysis) { 320893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel // Take a note of analysis required and made available by this pass 321893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel noteDownRequiredAnalysis(P); 322893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel noteDownAvailableAnalysis(P); 323893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel 324893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel // Remove the analysis not preserved by this pass 325893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel removeNotPreservedAnalysis(P); 326893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel } 327e253385b108cd946b1ac150302f246d3b218be77Devang Patel 328e253385b108cd946b1ac150302f246d3b218be77Devang Patel // Add pass 329e253385b108cd946b1ac150302f246d3b218be77Devang Patel PassVector.push_back(P); 330e253385b108cd946b1ac150302f246d3b218be77Devang Patel} 331e253385b108cd946b1ac150302f246d3b218be77Devang Patel 33255fd43f90913676682487f89f27c756adb827f66Devang Patel/// BasicBlockPassManager implementation 33355fd43f90913676682487f89f27c756adb827f66Devang Patel 3342c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel/// Add pass P into PassVector and return true. If this pass is not 3352c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel/// manageable by this manager then return false. 33655fd43f90913676682487f89f27c756adb827f66Devang Patelbool 3372c5d1851bbcb20adb79664ec16ab1f97b9142086Devang PatelBasicBlockPassManager_New::addPass(Pass *P) { 33855fd43f90913676682487f89f27c756adb827f66Devang Patel 33955fd43f90913676682487f89f27c756adb827f66Devang Patel BasicBlockPass *BP = dynamic_cast<BasicBlockPass*>(P); 34055fd43f90913676682487f89f27c756adb827f66Devang Patel if (!BP) 34155fd43f90913676682487f89f27c756adb827f66Devang Patel return false; 34255fd43f90913676682487f89f27c756adb827f66Devang Patel 34353596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel // If this pass does not preserve anlysis that is used by other passes 34453596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel // managed by this manager than it is not a suiable pass for this manager. 3452c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel if (!manageablePass(P)) 34653596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel return false; 34753596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel 348e253385b108cd946b1ac150302f246d3b218be77Devang Patel addPassToManager (BP); 34914d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel 35055fd43f90913676682487f89f27c756adb827f66Devang Patel return true; 35155fd43f90913676682487f89f27c756adb827f66Devang Patel} 35255fd43f90913676682487f89f27c756adb827f66Devang Patel 35355fd43f90913676682487f89f27c756adb827f66Devang Patel/// Execute all of the passes scheduled for execution by invoking 35455fd43f90913676682487f89f27c756adb827f66Devang Patel/// runOnBasicBlock method. Keep track of whether any of the passes modifies 35555fd43f90913676682487f89f27c756adb827f66Devang Patel/// the function, and if so, return true. 35655fd43f90913676682487f89f27c756adb827f66Devang Patelbool 35755fd43f90913676682487f89f27c756adb827f66Devang PatelBasicBlockPassManager_New::runOnFunction(Function &F) { 35855fd43f90913676682487f89f27c756adb827f66Devang Patel 35955fd43f90913676682487f89f27c756adb827f66Devang Patel bool Changed = false; 360c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel clearAnalysis(); 361c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 36255fd43f90913676682487f89f27c756adb827f66Devang Patel for (Function::iterator I = F.begin(), E = F.end(); I != E; ++I) 363e253385b108cd946b1ac150302f246d3b218be77Devang Patel for (std::vector<Pass *>::iterator itr = passVectorBegin(), 364e253385b108cd946b1ac150302f246d3b218be77Devang Patel e = passVectorEnd(); itr != e; ++itr) { 36555fd43f90913676682487f89f27c756adb827f66Devang Patel Pass *P = *itr; 366c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 367c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel noteDownAvailableAnalysis(P); 36855fd43f90913676682487f89f27c756adb827f66Devang Patel BasicBlockPass *BP = dynamic_cast<BasicBlockPass*>(P); 36955fd43f90913676682487f89f27c756adb827f66Devang Patel Changed |= BP->runOnBasicBlock(*I); 370c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel removeNotPreservedAnalysis(P); 371df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel removeDeadPasses(P); 37255fd43f90913676682487f89f27c756adb827f66Devang Patel } 37355fd43f90913676682487f89f27c756adb827f66Devang Patel return Changed; 37455fd43f90913676682487f89f27c756adb827f66Devang Patel} 37555fd43f90913676682487f89f27c756adb827f66Devang Patel 376be6d515f481756ff549f355e32be1ac398e141d5Devang Patel/// Return true IFF AnalysisID AID is currently available. 37703153c70de080e4c184ad29f0d78e456019b9a4cDevang PatelPass * BasicBlockPassManager_New::getAnalysisPassFromManager(AnalysisID AID) { 37803153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel return getAnalysisPass(AID); 379be6d515f481756ff549f355e32be1ac398e141d5Devang Patel} 380be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 381448d27cd795dc273249f123444509403f4fa4facDevang Patel// FunctionPassManager_New implementation 382c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// Create new Function pass manager 383c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang PatelFunctionPassManager_New::FunctionPassManager_New() { 384c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel FPM = new FunctionPassManagerImpl_New(); 385c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel} 386c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel 387c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// add - Add a pass to the queue of passes to run. This passes 388c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// ownership of the Pass to the PassManager. When the 389c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// PassManager_X is destroyed, the pass will be destroyed as well, so 390c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// there is no need to delete the pass. (TODO delete passes.) 391c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// This implies that all passes MUST be allocated with 'new'. 392c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patelvoid 393c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang PatelFunctionPassManager_New::add(Pass *P) { 394c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel FPM->add(P); 395c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel} 396c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel 397c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// Execute all of the passes scheduled for execution. Keep 398c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// track of whether any of the passes modifies the function, and if 399c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// so, return true. 400c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patelbool 401c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang PatelFunctionPassManager_New::runOnModule(Module &M) { 402c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel return FPM->runOnModule(M); 403c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel} 404c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel 405c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel// FunctionPassManagerImpl_New implementation 406448d27cd795dc273249f123444509403f4fa4facDevang Patel 407448d27cd795dc273249f123444509403f4fa4facDevang Patel// FunctionPassManager 408448d27cd795dc273249f123444509403f4fa4facDevang Patel 409448d27cd795dc273249f123444509403f4fa4facDevang Patel/// Add pass P into the pass manager queue. If P is a BasicBlockPass then 410448d27cd795dc273249f123444509403f4fa4facDevang Patel/// either use it into active basic block pass manager or create new basic 411448d27cd795dc273249f123444509403f4fa4facDevang Patel/// block pass manager to handle pass P. 412448d27cd795dc273249f123444509403f4fa4facDevang Patelbool 413c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang PatelFunctionPassManagerImpl_New::addPass(Pass *P) { 414448d27cd795dc273249f123444509403f4fa4facDevang Patel 415448d27cd795dc273249f123444509403f4fa4facDevang Patel // If P is a BasicBlockPass then use BasicBlockPassManager_New. 416448d27cd795dc273249f123444509403f4fa4facDevang Patel if (BasicBlockPass *BP = dynamic_cast<BasicBlockPass*>(P)) { 417448d27cd795dc273249f123444509403f4fa4facDevang Patel 418448d27cd795dc273249f123444509403f4fa4facDevang Patel if (!activeBBPassManager 419448d27cd795dc273249f123444509403f4fa4facDevang Patel || !activeBBPassManager->addPass(BP)) { 420448d27cd795dc273249f123444509403f4fa4facDevang Patel 421448d27cd795dc273249f123444509403f4fa4facDevang Patel activeBBPassManager = new BasicBlockPassManager_New(); 422893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel addPassToManager(activeBBPassManager, false); 4232c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel if (!activeBBPassManager->addPass(BP)) 4242c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel assert(0 && "Unable to add Pass"); 425448d27cd795dc273249f123444509403f4fa4facDevang Patel } 426448d27cd795dc273249f123444509403f4fa4facDevang Patel return true; 427448d27cd795dc273249f123444509403f4fa4facDevang Patel } 428448d27cd795dc273249f123444509403f4fa4facDevang Patel 429448d27cd795dc273249f123444509403f4fa4facDevang Patel FunctionPass *FP = dynamic_cast<FunctionPass *>(P); 430448d27cd795dc273249f123444509403f4fa4facDevang Patel if (!FP) 431448d27cd795dc273249f123444509403f4fa4facDevang Patel return false; 432448d27cd795dc273249f123444509403f4fa4facDevang Patel 43353596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel // If this pass does not preserve anlysis that is used by other passes 43453596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel // managed by this manager than it is not a suiable pass for this manager. 4352c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel if (!manageablePass(P)) 43653596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel return false; 43753596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel 438e253385b108cd946b1ac150302f246d3b218be77Devang Patel addPassToManager (FP); 439448d27cd795dc273249f123444509403f4fa4facDevang Patel activeBBPassManager = NULL; 440448d27cd795dc273249f123444509403f4fa4facDevang Patel return true; 441448d27cd795dc273249f123444509403f4fa4facDevang Patel} 442448d27cd795dc273249f123444509403f4fa4facDevang Patel 443448d27cd795dc273249f123444509403f4fa4facDevang Patel/// Execute all of the passes scheduled for execution by invoking 444448d27cd795dc273249f123444509403f4fa4facDevang Patel/// runOnFunction method. Keep track of whether any of the passes modifies 445448d27cd795dc273249f123444509403f4fa4facDevang Patel/// the function, and if so, return true. 446448d27cd795dc273249f123444509403f4fa4facDevang Patelbool 447c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang PatelFunctionPassManagerImpl_New::runOnModule(Module &M) { 448448d27cd795dc273249f123444509403f4fa4facDevang Patel 449448d27cd795dc273249f123444509403f4fa4facDevang Patel bool Changed = false; 450c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel clearAnalysis(); 451c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 452448d27cd795dc273249f123444509403f4fa4facDevang Patel for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I) 453e253385b108cd946b1ac150302f246d3b218be77Devang Patel for (std::vector<Pass *>::iterator itr = passVectorBegin(), 454e253385b108cd946b1ac150302f246d3b218be77Devang Patel e = passVectorEnd(); itr != e; ++itr) { 455448d27cd795dc273249f123444509403f4fa4facDevang Patel Pass *P = *itr; 456c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 457c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel noteDownAvailableAnalysis(P); 458448d27cd795dc273249f123444509403f4fa4facDevang Patel FunctionPass *FP = dynamic_cast<FunctionPass*>(P); 459448d27cd795dc273249f123444509403f4fa4facDevang Patel Changed |= FP->runOnFunction(*I); 460c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel removeNotPreservedAnalysis(P); 461df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel removeDeadPasses(P); 462448d27cd795dc273249f123444509403f4fa4facDevang Patel } 463448d27cd795dc273249f123444509403f4fa4facDevang Patel return Changed; 464448d27cd795dc273249f123444509403f4fa4facDevang Patel} 465448d27cd795dc273249f123444509403f4fa4facDevang Patel 466be6d515f481756ff549f355e32be1ac398e141d5Devang Patel/// Return true IFF AnalysisID AID is currently available. 46703153c70de080e4c184ad29f0d78e456019b9a4cDevang PatelPass *FunctionPassManagerImpl_New::getAnalysisPassFromManager(AnalysisID AID) { 468be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 46903153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel Pass *P = getAnalysisPass(AID); 47003153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel if (P) 47103153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel return P; 472be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 473be6d515f481756ff549f355e32be1ac398e141d5Devang Patel if (activeBBPassManager && 474b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel activeBBPassManager->getAnalysisPass(AID) != 0) 47503153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel return activeBBPassManager->getAnalysisPass(AID); 476be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 477be6d515f481756ff549f355e32be1ac398e141d5Devang Patel // TODO : Check inactive managers 47803153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel return NULL; 479be6d515f481756ff549f355e32be1ac398e141d5Devang Patel} 480448d27cd795dc273249f123444509403f4fa4facDevang Patel 48192c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel// ModulePassManager implementation 48292c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 48392c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel/// Add P into pass vector if it is manageble. If P is a FunctionPass 484c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// then use FunctionPassManagerImpl_New to manage it. Return false if P 48592c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel/// is not manageable by this manager. 48692c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patelbool 4872c5d1851bbcb20adb79664ec16ab1f97b9142086Devang PatelModulePassManager_New::addPass(Pass *P) { 48892c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 48992c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel // If P is FunctionPass then use function pass maanager. 49092c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel if (FunctionPass *FP = dynamic_cast<FunctionPass*>(P)) { 49192c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 49292c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel activeFunctionPassManager = NULL; 49392c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 49492c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel if (!activeFunctionPassManager 49592c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel || !activeFunctionPassManager->addPass(P)) { 49692c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 497c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel activeFunctionPassManager = new FunctionPassManagerImpl_New(); 498893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel addPassToManager(activeFunctionPassManager, false); 4992c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel if (!activeFunctionPassManager->addPass(FP)) 5002c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel assert(0 && "Unable to add pass"); 50192c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel } 50292c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel return true; 50392c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel } 50492c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 50592c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel ModulePass *MP = dynamic_cast<ModulePass *>(P); 50692c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel if (!MP) 50792c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel return false; 50892c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 50953596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel // If this pass does not preserve anlysis that is used by other passes 51053596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel // managed by this manager than it is not a suiable pass for this manager. 5112c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel if (!manageablePass(P)) 51253596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel return false; 51353596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel 514e253385b108cd946b1ac150302f246d3b218be77Devang Patel addPassToManager(MP); 51592c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel activeFunctionPassManager = NULL; 51692c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel return true; 51792c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel} 51892c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 51992c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 52092c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel/// Execute all of the passes scheduled for execution by invoking 52192c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel/// runOnModule method. Keep track of whether any of the passes modifies 52292c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel/// the module, and if so, return true. 52392c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patelbool 52492c45eebf77de5d6ee84a3f18f560b83cb68e720Devang PatelModulePassManager_New::runOnModule(Module &M) { 52592c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel bool Changed = false; 526c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel clearAnalysis(); 527c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 528e253385b108cd946b1ac150302f246d3b218be77Devang Patel for (std::vector<Pass *>::iterator itr = passVectorBegin(), 529e253385b108cd946b1ac150302f246d3b218be77Devang Patel e = passVectorEnd(); itr != e; ++itr) { 53092c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel Pass *P = *itr; 531c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 532c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel noteDownAvailableAnalysis(P); 53392c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel ModulePass *MP = dynamic_cast<ModulePass*>(P); 53492c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel Changed |= MP->runOnModule(M); 535c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel removeNotPreservedAnalysis(P); 536df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel removeDeadPasses(P); 53792c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel } 53892c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel return Changed; 53992c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel} 54092c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 541be6d515f481756ff549f355e32be1ac398e141d5Devang Patel/// Return true IFF AnalysisID AID is currently available. 54203153c70de080e4c184ad29f0d78e456019b9a4cDevang PatelPass *ModulePassManager_New::getAnalysisPassFromManager(AnalysisID AID) { 543be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 54403153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel 54503153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel Pass *P = getAnalysisPass(AID); 54603153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel if (P) 54703153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel return P; 548be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 549be6d515f481756ff549f355e32be1ac398e141d5Devang Patel if (activeFunctionPassManager && 550b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel activeFunctionPassManager->getAnalysisPass(AID) != 0) 55103153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel return activeFunctionPassManager->getAnalysisPass(AID); 552be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 553be6d515f481756ff549f355e32be1ac398e141d5Devang Patel // TODO : Check inactive managers 55403153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel return NULL; 555be6d515f481756ff549f355e32be1ac398e141d5Devang Patel} 556be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 557be6d515f481756ff549f355e32be1ac398e141d5Devang Patel/// Return true IFF AnalysisID AID is currently available. 55803153c70de080e4c184ad29f0d78e456019b9a4cDevang PatelPass *PassManagerImpl_New::getAnalysisPassFromManager(AnalysisID AID) { 559be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 56003153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel Pass *P = NULL; 5612718bfbaa6a1ecb37bb34483b09010cbb3563f83Devang Patel for (std::vector<ModulePassManager_New *>::iterator itr = PassManagers.begin(), 56203153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel e = PassManagers.end(); !P && itr != e; ++itr) 56303153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel P = (*itr)->getAnalysisPassFromManager(AID); 56403153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel return P; 565be6d515f481756ff549f355e32be1ac398e141d5Devang Patel} 566be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 567f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel/// Schedule pass P for execution. Make sure that passes required by 568f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel/// P are run before P is run. Update analysis info maintained by 569f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel/// the manager. Remove dead passes. This is a recursive function. 570f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patelvoid PassManagerImpl_New::schedulePass(Pass *P) { 571f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel 572f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel AnalysisUsage AnUsage; 573f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel P->getAnalysisUsage(AnUsage); 574f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel const std::vector<AnalysisID> &RequiredSet = AnUsage.getRequiredSet(); 575f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel for (std::vector<AnalysisID>::const_iterator I = RequiredSet.begin(), 576f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel E = RequiredSet.end(); I != E; ++I) { 577f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel 57803153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel Pass *AnalysisPass = getAnalysisPassFromManager(*I); 57903153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel if (!AnalysisPass) { 580f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel // Schedule this analysis run first. 58103153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel AnalysisPass = (*I)->createPass(); 58203153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel schedulePass(AnalysisPass); 583f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel } 58403153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel setLastUser (AnalysisPass, P); 585f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel } 586f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel 587f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel addPass(P); 588f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel} 589f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel 590b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel/// Schedule all passes from the queue by adding them in their 591b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel/// respective manager's queue. 592f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patelvoid PassManagerImpl_New::schedulePasses() { 593f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel for (std::vector<Pass *>::iterator I = passVectorBegin(), 594f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel E = passVectorEnd(); I != E; ++I) 595f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel schedulePass (*I); 596b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel} 597b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel 598b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel/// Add pass P to the queue of passes to run. 599f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patelvoid PassManagerImpl_New::add(Pass *P) { 600f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel // Do not process Analysis now. Analysis is process while scheduling 601f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel // the pass vector. 602fcb2d940a0f0c471069a65c57c48b847d1b6762eDevang Patel addPassToManager(P, false); 603b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel} 604b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel 605b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel// PassManager_New implementation 606b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel/// Add P into active pass manager or use new module pass manager to 607b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel/// manage it. 608f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patelbool PassManagerImpl_New::addPass(Pass *P) { 609b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel 610a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel if (!activeManager || !activeManager->addPass(P)) { 611b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel activeManager = new ModulePassManager_New(); 612b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel PassManagers.push_back(activeManager); 613b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel } 614b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel 615b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel return activeManager->addPass(P); 616b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel} 617b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel 618b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel/// run - Execute all of the passes scheduled for execution. Keep track of 619b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel/// whether any of the passes modifies the module, and if so, return true. 620f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patelbool PassManagerImpl_New::run(Module &M) { 621b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel 622b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel schedulePasses(); 623b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel bool Changed = false; 624b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel for (std::vector<ModulePassManager_New *>::iterator itr = PassManagers.begin(), 625b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel e = PassManagers.end(); itr != e; ++itr) { 626b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel ModulePassManager_New *pm = *itr; 627b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel Changed |= pm->runOnModule(M); 628b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel } 629b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel return Changed; 630b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel} 6315a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 6325a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// Create new pass manager 6335a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang PatelPassManager_New::PassManager_New() { 6345a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel PM = new PassManagerImpl_New(); 6355a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel} 6365a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 6375a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// add - Add a pass to the queue of passes to run. This passes ownership of 6385a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// the Pass to the PassManager. When the PassManager is destroyed, the pass 6395a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// will be destroyed as well, so there is no need to delete the pass. This 6405a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// implies that all passes MUST be allocated with 'new'. 6415a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patelvoid 6425a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang PatelPassManager_New::add(Pass *P) { 6435a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel PM->add(P); 6445a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel} 6455a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 6465a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// run - Execute all of the passes scheduled for execution. Keep track of 6475a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// whether any of the passes modifies the module, and if so, return true. 6485a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patelbool 6495a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang PatelPassManager_New::run(Module &M) { 6505a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel return PM->run(M); 6515a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel} 6525a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 653