PassManager.cpp revision 2f42ed6b0b5161296cdd7e573b49fe631599fc97
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 // 752f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel void initializeAnalysisImpl(Pass *P); 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 852f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel inline void setLastUser(Pass *P, Pass *LU) { 862f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel LastUser[P] = LU; 872f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel // TODO : Check if pass P is available. 882f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel 892f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel // Prolong live range of analyses that are needed after an analysis pass 902f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel // is destroyed, for querying by subsequent passes 912f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel AnalysisUsage AnUsage; 922f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel P->getAnalysisUsage(AnUsage); 932f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel const std::vector<AnalysisID> &IDs = AnUsage.getRequiredTransitiveSet(); 942f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel for (std::vector<AnalysisID>::const_iterator I = IDs.begin(), 952f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel E = IDs.end(); I != E; ++I) { 962f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel Pass *AnalysisPass = getAnalysisPass(*I); // getAnalysisPassFromManager(*I); 972f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel assert (AnalysisPass && "Analysis pass is not available"); 982f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel setLastUser(AnalysisPass, LU); 992f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel } 1002f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel 1012f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel } 10203153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel 10385d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patelprivate: 1045770c7cd52d6a3dfd9a5815cc9153d94afc6dd31Devang Patel // Analysis required by the passes managed by this manager. This information 1055770c7cd52d6a3dfd9a5815cc9153d94afc6dd31Devang Patel // used while selecting pass manager during addPass. If a pass does not 1065770c7cd52d6a3dfd9a5815cc9153d94afc6dd31Devang Patel // preserve any analysis required by other passes managed by current 1075770c7cd52d6a3dfd9a5815cc9153d94afc6dd31Devang Patel // pass manager then new pass manager is used. 10885d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel std::vector<AnalysisID> RequiredAnalysis; 10985d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 1105770c7cd52d6a3dfd9a5815cc9153d94afc6dd31Devang Patel // Set of available Analysis. This information is used while scheduling 1115770c7cd52d6a3dfd9a5815cc9153d94afc6dd31Devang Patel // pass. If a pass requires an analysis which is not not available then 1125770c7cd52d6a3dfd9a5815cc9153d94afc6dd31Devang Patel // equired analysis pass is scheduled to run before the pass itself is 1135770c7cd52d6a3dfd9a5815cc9153d94afc6dd31Devang Patel // scheduled to run. 114b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel std::map<AnalysisID, Pass*> AvailableAnalysis; 115e253385b108cd946b1ac150302f246d3b218be77Devang Patel 11603153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel // Map to keep track of last user of the analysis pass. 11703153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel // LastUser->second is the last user of Lastuser->first. 11803153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel std::map<Pass *, Pass *> LastUser; 11903153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel 120e253385b108cd946b1ac150302f246d3b218be77Devang Patel // Collection of pass that are managed by this manager 121e253385b108cd946b1ac150302f246d3b218be77Devang Patel std::vector<Pass *> PassVector; 12285d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel}; 12385d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 124c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// BasicBlockPassManager_New manages BasicBlockPass. It batches all the 125c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// pass together and sequence them to process one basic block before 126c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// processing next basic block. 12737a84c7d8bda439082b883e33be6ab88b4cce236Devang Patelclass BasicBlockPassManager_New : public CommonPassManagerImpl { 128c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 129c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelpublic: 130c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel BasicBlockPassManager_New() { } 131c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 132c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// Add a pass into a passmanager queue. 133c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel bool addPass(Pass *p); 134c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 135c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// Execute all of the passes scheduled for execution. Keep track of 136c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// whether any of the passes modifies the function, and if so, return true. 137c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel bool runOnFunction(Function &F); 138c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 139be6d515f481756ff549f355e32be1ac398e141d5Devang Patel /// Return true IFF AnalysisID AID is currently available. 14003153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel Pass *getAnalysisPassFromManager(AnalysisID AID); 141be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 142c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelprivate: 143c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel}; 144c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 145c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// FunctionPassManagerImpl_New manages FunctionPasses and BasicBlockPassManagers. 146c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// It batches all function passes and basic block pass managers together and 147c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// sequence them to process one function at a time before processing next 148c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// function. 14937a84c7d8bda439082b883e33be6ab88b4cce236Devang Patelclass FunctionPassManagerImpl_New : public CommonPassManagerImpl { 150c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelpublic: 151c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel FunctionPassManagerImpl_New(ModuleProvider *P) { /* TODO */ } 152c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel FunctionPassManagerImpl_New() { 153c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel activeBBPassManager = NULL; 154c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel } 155c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel ~FunctionPassManagerImpl_New() { /* TODO */ }; 156c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 157c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// add - Add a pass to the queue of passes to run. This passes 158c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// ownership of the Pass to the PassManager. When the 159c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// PassManager_X is destroyed, the pass will be destroyed as well, so 160c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// there is no need to delete the pass. (TODO delete passes.) 161c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// This implies that all passes MUST be allocated with 'new'. 162c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel void add(Pass *P) { /* TODO*/ } 163c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 164c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// Add pass into the pass manager queue. 165c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel bool addPass(Pass *P); 166c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 167c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// Execute all of the passes scheduled for execution. Keep 168c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// track of whether any of the passes modifies the function, and if 169c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// so, return true. 170c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel bool runOnModule(Module &M); 171c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 172be6d515f481756ff549f355e32be1ac398e141d5Devang Patel /// Return true IFF AnalysisID AID is currently available. 17303153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel Pass *getAnalysisPassFromManager(AnalysisID AID); 174be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 175c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelprivate: 176c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel // Active Pass Managers 177c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel BasicBlockPassManager_New *activeBBPassManager; 178c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel}; 179c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 180c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// ModulePassManager_New manages ModulePasses and function pass managers. 181c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// It batches all Module passes passes and function pass managers together and 182c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// sequence them to process one module. 18337a84c7d8bda439082b883e33be6ab88b4cce236Devang Patelclass ModulePassManager_New : public CommonPassManagerImpl { 184c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 185c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelpublic: 186c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel ModulePassManager_New() { activeFunctionPassManager = NULL; } 187c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 188c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// Add a pass into a passmanager queue. 189c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel bool addPass(Pass *p); 190c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 191c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// run - Execute all of the passes scheduled for execution. Keep track of 192c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// whether any of the passes modifies the module, and if so, return true. 193c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel bool runOnModule(Module &M); 194be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 195be6d515f481756ff549f355e32be1ac398e141d5Devang Patel /// Return true IFF AnalysisID AID is currently available. 19603153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel Pass *getAnalysisPassFromManager(AnalysisID AID); 197c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 198c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelprivate: 199c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel // Active Pass Manager 200c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel FunctionPassManagerImpl_New *activeFunctionPassManager; 201c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel}; 202c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 2035a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// PassManager_New manages ModulePassManagers 20437a84c7d8bda439082b883e33be6ab88b4cce236Devang Patelclass PassManagerImpl_New : public CommonPassManagerImpl { 2055a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 2065a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patelpublic: 2075a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 2085a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// add - Add a pass to the queue of passes to run. This passes ownership of 2095a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// the Pass to the PassManager. When the PassManager is destroyed, the pass 2105a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// will be destroyed as well, so there is no need to delete the pass. This 2115a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// implies that all passes MUST be allocated with 'new'. 2125a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel void add(Pass *P); 2135a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 2145a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// run - Execute all of the passes scheduled for execution. Keep track of 2155a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// whether any of the passes modifies the module, and if so, return true. 2165a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel bool run(Module &M); 2175a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 218be6d515f481756ff549f355e32be1ac398e141d5Devang Patel /// Return true IFF AnalysisID AID is currently available. 21903153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel Pass *getAnalysisPassFromManager(AnalysisID AID); 220be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 2215a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patelprivate: 2225a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 2235a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// Add a pass into a passmanager queue. This is used by schedulePasses 2245a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel bool addPass(Pass *p); 2255a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 226f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel /// Schedule pass P for execution. Make sure that passes required by 227f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel /// P are run before P is run. Update analysis info maintained by 228f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel /// the manager. Remove dead passes. This is a recursive function. 229f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel void schedulePass(Pass *P); 230f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel 2315a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// Schedule all passes collected in pass queue using add(). Add all the 2325a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// schedule passes into various manager's queue using addPass(). 2335a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel void schedulePasses(); 2345a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 2355a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel // Collection of pass managers 2365a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel std::vector<ModulePassManager_New *> PassManagers; 2375a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 2385a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel // Active Pass Manager 2395a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel ModulePassManager_New *activeManager; 2405a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel}; 2415a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 242c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel} // End of llvm namespace 243c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 24437a84c7d8bda439082b883e33be6ab88b4cce236Devang Patel// CommonPassManagerImpl implementation 245889739c4d188d28c167644bced9df0f3131317d7Devang Patel 2462c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel/// Return true IFF pass P's required analysis set does not required new 247889739c4d188d28c167644bced9df0f3131317d7Devang Patel/// manager. 24837a84c7d8bda439082b883e33be6ab88b4cce236Devang Patelbool CommonPassManagerImpl::manageablePass(Pass *P) { 249889739c4d188d28c167644bced9df0f3131317d7Devang Patel 250889739c4d188d28c167644bced9df0f3131317d7Devang Patel AnalysisUsage AnUsage; 251889739c4d188d28c167644bced9df0f3131317d7Devang Patel P->getAnalysisUsage(AnUsage); 252889739c4d188d28c167644bced9df0f3131317d7Devang Patel 253a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel // If this pass is not preserving information that is required by the other 254a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel // passes managed by this manager then use new manager 255a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel if (!AnUsage.getPreservesAll()) { 256a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel const std::vector<AnalysisID> &PreservedSet = AnUsage.getPreservedSet(); 257a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel for (std::vector<AnalysisID>::iterator I = RequiredAnalysis.begin(), 258a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel E = RequiredAnalysis.end(); I != E; ++I) { 259a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel if (std::find(PreservedSet.begin(), PreservedSet.end(), *I) == 260a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel PreservedSet.end()) 261a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel // This analysis is not preserved. Need new manager. 262a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel return false; 263a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel } 264a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel } 265889739c4d188d28c167644bced9df0f3131317d7Devang Patel return true; 266889739c4d188d28c167644bced9df0f3131317d7Devang Patel} 267889739c4d188d28c167644bced9df0f3131317d7Devang Patel 268b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel/// Augment RequiredAnalysis by adding analysis required by pass P. 26937a84c7d8bda439082b883e33be6ab88b4cce236Devang Patelvoid CommonPassManagerImpl::noteDownRequiredAnalysis(Pass *P) { 270a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel AnalysisUsage AnUsage; 271a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel P->getAnalysisUsage(AnUsage); 272a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel const std::vector<AnalysisID> &RequiredSet = AnUsage.getRequiredSet(); 273889739c4d188d28c167644bced9df0f3131317d7Devang Patel 274a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel // FIXME: What about duplicates ? 27514d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel RequiredAnalysis.insert(RequiredAnalysis.end(), RequiredSet.begin(), 27614d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel RequiredSet.end()); 2772f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel 2782f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel initializeAnalysisImpl(P); 279889739c4d188d28c167644bced9df0f3131317d7Devang Patel} 280889739c4d188d28c167644bced9df0f3131317d7Devang Patel 281b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel/// Augement AvailableAnalysis by adding analysis made available by pass P. 282b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patelvoid CommonPassManagerImpl::noteDownAvailableAnalysis(Pass *P) { 283b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel 284b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel if (const PassInfo *PI = P->getPassInfo()) { 285b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel AvailableAnalysis[PI] = P; 286b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel 287b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel //TODO This pass is the current implementation of all of the interfaces it 288b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel //TODO implements as well. 289b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel //TODO 290b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel //TODO const std::vector<const PassInfo*> &II = PI->getInterfacesImplemented(); 291b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel //TODO for (unsigned i = 0, e = II.size(); i != e; ++i) 292b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel //TODO CurrentAnalyses[II[i]] = P; 293b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel } 294b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel} 295b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel 296889739c4d188d28c167644bced9df0f3131317d7Devang Patel/// Remove Analyss not preserved by Pass P 29737a84c7d8bda439082b883e33be6ab88b4cce236Devang Patelvoid CommonPassManagerImpl::removeNotPreservedAnalysis(Pass *P) { 29814d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel AnalysisUsage AnUsage; 29914d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel P->getAnalysisUsage(AnUsage); 30014d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel const std::vector<AnalysisID> &PreservedSet = AnUsage.getPreservedSet(); 30114d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel 302b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel for (std::map<AnalysisID, Pass*>::iterator I = AvailableAnalysis.begin(), 30314d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel E = AvailableAnalysis.end(); I != E; ++I ) { 304b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel if (std::find(PreservedSet.begin(), PreservedSet.end(), I->first) == 30514d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel PreservedSet.end()) { 30614d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel // Remove this analysis 307b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel std::map<AnalysisID, Pass*>::iterator J = I++; 30814d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel AvailableAnalysis.erase(J); 30914d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel } 31014d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel } 311889739c4d188d28c167644bced9df0f3131317d7Devang Patel} 312889739c4d188d28c167644bced9df0f3131317d7Devang Patel 313df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel/// Remove analysis passes that are not used any longer 314df1a10ece6a75f230d98c6fb001349eede90387aDevang Patelvoid CommonPassManagerImpl::removeDeadPasses(Pass *P) { 315df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel 316df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel for (std::map<Pass *, Pass *>::iterator I = LastUser.begin(), 317df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel E = LastUser.end(); I !=E; ++I) { 318df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel if (I->second == P) { 319df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel Pass *deadPass = I->first; 320df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel deadPass->releaseMemory(); 321df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel 322df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel std::map<AnalysisID, Pass*>::iterator Pos = 323df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel AvailableAnalysis.find(deadPass->getPassInfo()); 324df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel 325df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel assert (Pos != AvailableAnalysis.end() && 326df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel "Pass is not available"); 327df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel AvailableAnalysis.erase(Pos); 328df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel } 329df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel } 330df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel} 331df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel 332e253385b108cd946b1ac150302f246d3b218be77Devang Patel/// Add pass P into the PassVector. Update RequiredAnalysis and 333893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel/// AvailableAnalysis appropriately if ProcessAnalysis is true. 334893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patelvoid CommonPassManagerImpl::addPassToManager (Pass *P, 335893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel bool ProcessAnalysis) { 336e253385b108cd946b1ac150302f246d3b218be77Devang Patel 337893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel if (ProcessAnalysis) { 338893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel // Take a note of analysis required and made available by this pass 339893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel noteDownRequiredAnalysis(P); 340893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel noteDownAvailableAnalysis(P); 341893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel 342893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel // Remove the analysis not preserved by this pass 343893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel removeNotPreservedAnalysis(P); 344893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel } 345e253385b108cd946b1ac150302f246d3b218be77Devang Patel 346e253385b108cd946b1ac150302f246d3b218be77Devang Patel // Add pass 347e253385b108cd946b1ac150302f246d3b218be77Devang Patel PassVector.push_back(P); 348e253385b108cd946b1ac150302f246d3b218be77Devang Patel} 349e253385b108cd946b1ac150302f246d3b218be77Devang Patel 3502f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel// All Required analyses should be available to the pass as it runs! Here 3512f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel// we fill in the AnalysisImpls member of the pass so that it can 3522f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel// successfully use the getAnalysis() method to retrieve the 3532f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel// implementations it needs. 3542f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel// 3552f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patelvoid CommonPassManagerImpl::initializeAnalysisImpl(Pass *P) { 3562f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel AnalysisUsage AnUsage; 3572f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel P->getAnalysisUsage(AnUsage); 3582f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel 3592f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel for (std::vector<const PassInfo *>::const_iterator 3602f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel I = AnUsage.getRequiredSet().begin(), 3612f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel E = AnUsage.getRequiredSet().end(); I != E; ++I) { 3622f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel Pass *Impl = getAnalysisPass(*I); 3632f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel if (Impl == 0) 3642f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel assert(0 && "Analysis used but not available!"); 3652f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel // TODO: P->AnalysisImpls.push_back(std::make_pair(*I, Impl)); 3662f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel } 3672f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel} 3682f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel 36955fd43f90913676682487f89f27c756adb827f66Devang Patel/// BasicBlockPassManager implementation 37055fd43f90913676682487f89f27c756adb827f66Devang Patel 3712c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel/// Add pass P into PassVector and return true. If this pass is not 3722c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel/// manageable by this manager then return false. 37355fd43f90913676682487f89f27c756adb827f66Devang Patelbool 3742c5d1851bbcb20adb79664ec16ab1f97b9142086Devang PatelBasicBlockPassManager_New::addPass(Pass *P) { 37555fd43f90913676682487f89f27c756adb827f66Devang Patel 37655fd43f90913676682487f89f27c756adb827f66Devang Patel BasicBlockPass *BP = dynamic_cast<BasicBlockPass*>(P); 37755fd43f90913676682487f89f27c756adb827f66Devang Patel if (!BP) 37855fd43f90913676682487f89f27c756adb827f66Devang Patel return false; 37955fd43f90913676682487f89f27c756adb827f66Devang Patel 38053596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel // If this pass does not preserve anlysis that is used by other passes 38153596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel // managed by this manager than it is not a suiable pass for this manager. 3822c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel if (!manageablePass(P)) 38353596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel return false; 38453596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel 385e253385b108cd946b1ac150302f246d3b218be77Devang Patel addPassToManager (BP); 38614d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel 38755fd43f90913676682487f89f27c756adb827f66Devang Patel return true; 38855fd43f90913676682487f89f27c756adb827f66Devang Patel} 38955fd43f90913676682487f89f27c756adb827f66Devang Patel 39055fd43f90913676682487f89f27c756adb827f66Devang Patel/// Execute all of the passes scheduled for execution by invoking 39155fd43f90913676682487f89f27c756adb827f66Devang Patel/// runOnBasicBlock method. Keep track of whether any of the passes modifies 39255fd43f90913676682487f89f27c756adb827f66Devang Patel/// the function, and if so, return true. 39355fd43f90913676682487f89f27c756adb827f66Devang Patelbool 39455fd43f90913676682487f89f27c756adb827f66Devang PatelBasicBlockPassManager_New::runOnFunction(Function &F) { 39555fd43f90913676682487f89f27c756adb827f66Devang Patel 39655fd43f90913676682487f89f27c756adb827f66Devang Patel bool Changed = false; 397c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel clearAnalysis(); 398c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 39955fd43f90913676682487f89f27c756adb827f66Devang Patel for (Function::iterator I = F.begin(), E = F.end(); I != E; ++I) 400e253385b108cd946b1ac150302f246d3b218be77Devang Patel for (std::vector<Pass *>::iterator itr = passVectorBegin(), 401e253385b108cd946b1ac150302f246d3b218be77Devang Patel e = passVectorEnd(); itr != e; ++itr) { 40255fd43f90913676682487f89f27c756adb827f66Devang Patel Pass *P = *itr; 403c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 404c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel noteDownAvailableAnalysis(P); 40555fd43f90913676682487f89f27c756adb827f66Devang Patel BasicBlockPass *BP = dynamic_cast<BasicBlockPass*>(P); 40655fd43f90913676682487f89f27c756adb827f66Devang Patel Changed |= BP->runOnBasicBlock(*I); 407c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel removeNotPreservedAnalysis(P); 408df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel removeDeadPasses(P); 40955fd43f90913676682487f89f27c756adb827f66Devang Patel } 41055fd43f90913676682487f89f27c756adb827f66Devang Patel return Changed; 41155fd43f90913676682487f89f27c756adb827f66Devang Patel} 41255fd43f90913676682487f89f27c756adb827f66Devang Patel 413be6d515f481756ff549f355e32be1ac398e141d5Devang Patel/// Return true IFF AnalysisID AID is currently available. 41403153c70de080e4c184ad29f0d78e456019b9a4cDevang PatelPass * BasicBlockPassManager_New::getAnalysisPassFromManager(AnalysisID AID) { 41503153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel return getAnalysisPass(AID); 416be6d515f481756ff549f355e32be1ac398e141d5Devang Patel} 417be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 418448d27cd795dc273249f123444509403f4fa4facDevang Patel// FunctionPassManager_New implementation 419c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// Create new Function pass manager 420c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang PatelFunctionPassManager_New::FunctionPassManager_New() { 421c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel FPM = new FunctionPassManagerImpl_New(); 422c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel} 423c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel 424c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// add - Add a pass to the queue of passes to run. This passes 425c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// ownership of the Pass to the PassManager. When the 426c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// PassManager_X is destroyed, the pass will be destroyed as well, so 427c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// there is no need to delete the pass. (TODO delete passes.) 428c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// This implies that all passes MUST be allocated with 'new'. 429c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patelvoid 430c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang PatelFunctionPassManager_New::add(Pass *P) { 431c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel FPM->add(P); 432c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel} 433c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel 434c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// Execute all of the passes scheduled for execution. Keep 435c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// track of whether any of the passes modifies the function, and if 436c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// so, return true. 437c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patelbool 438c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang PatelFunctionPassManager_New::runOnModule(Module &M) { 439c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel return FPM->runOnModule(M); 440c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel} 441c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel 442c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel// FunctionPassManagerImpl_New implementation 443448d27cd795dc273249f123444509403f4fa4facDevang Patel 444448d27cd795dc273249f123444509403f4fa4facDevang Patel// FunctionPassManager 445448d27cd795dc273249f123444509403f4fa4facDevang Patel 446448d27cd795dc273249f123444509403f4fa4facDevang Patel/// Add pass P into the pass manager queue. If P is a BasicBlockPass then 447448d27cd795dc273249f123444509403f4fa4facDevang Patel/// either use it into active basic block pass manager or create new basic 448448d27cd795dc273249f123444509403f4fa4facDevang Patel/// block pass manager to handle pass P. 449448d27cd795dc273249f123444509403f4fa4facDevang Patelbool 450c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang PatelFunctionPassManagerImpl_New::addPass(Pass *P) { 451448d27cd795dc273249f123444509403f4fa4facDevang Patel 452448d27cd795dc273249f123444509403f4fa4facDevang Patel // If P is a BasicBlockPass then use BasicBlockPassManager_New. 453448d27cd795dc273249f123444509403f4fa4facDevang Patel if (BasicBlockPass *BP = dynamic_cast<BasicBlockPass*>(P)) { 454448d27cd795dc273249f123444509403f4fa4facDevang Patel 455448d27cd795dc273249f123444509403f4fa4facDevang Patel if (!activeBBPassManager 456448d27cd795dc273249f123444509403f4fa4facDevang Patel || !activeBBPassManager->addPass(BP)) { 457448d27cd795dc273249f123444509403f4fa4facDevang Patel 458448d27cd795dc273249f123444509403f4fa4facDevang Patel activeBBPassManager = new BasicBlockPassManager_New(); 459893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel addPassToManager(activeBBPassManager, false); 4602c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel if (!activeBBPassManager->addPass(BP)) 4612c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel assert(0 && "Unable to add Pass"); 462448d27cd795dc273249f123444509403f4fa4facDevang Patel } 463448d27cd795dc273249f123444509403f4fa4facDevang Patel return true; 464448d27cd795dc273249f123444509403f4fa4facDevang Patel } 465448d27cd795dc273249f123444509403f4fa4facDevang Patel 466448d27cd795dc273249f123444509403f4fa4facDevang Patel FunctionPass *FP = dynamic_cast<FunctionPass *>(P); 467448d27cd795dc273249f123444509403f4fa4facDevang Patel if (!FP) 468448d27cd795dc273249f123444509403f4fa4facDevang Patel return false; 469448d27cd795dc273249f123444509403f4fa4facDevang Patel 47053596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel // If this pass does not preserve anlysis that is used by other passes 47153596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel // managed by this manager than it is not a suiable pass for this manager. 4722c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel if (!manageablePass(P)) 47353596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel return false; 47453596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel 475e253385b108cd946b1ac150302f246d3b218be77Devang Patel addPassToManager (FP); 476448d27cd795dc273249f123444509403f4fa4facDevang Patel activeBBPassManager = NULL; 477448d27cd795dc273249f123444509403f4fa4facDevang Patel return true; 478448d27cd795dc273249f123444509403f4fa4facDevang Patel} 479448d27cd795dc273249f123444509403f4fa4facDevang Patel 480448d27cd795dc273249f123444509403f4fa4facDevang Patel/// Execute all of the passes scheduled for execution by invoking 481448d27cd795dc273249f123444509403f4fa4facDevang Patel/// runOnFunction method. Keep track of whether any of the passes modifies 482448d27cd795dc273249f123444509403f4fa4facDevang Patel/// the function, and if so, return true. 483448d27cd795dc273249f123444509403f4fa4facDevang Patelbool 484c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang PatelFunctionPassManagerImpl_New::runOnModule(Module &M) { 485448d27cd795dc273249f123444509403f4fa4facDevang Patel 486448d27cd795dc273249f123444509403f4fa4facDevang Patel bool Changed = false; 487c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel clearAnalysis(); 488c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 489448d27cd795dc273249f123444509403f4fa4facDevang Patel for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I) 490e253385b108cd946b1ac150302f246d3b218be77Devang Patel for (std::vector<Pass *>::iterator itr = passVectorBegin(), 491e253385b108cd946b1ac150302f246d3b218be77Devang Patel e = passVectorEnd(); itr != e; ++itr) { 492448d27cd795dc273249f123444509403f4fa4facDevang Patel Pass *P = *itr; 493c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 494c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel noteDownAvailableAnalysis(P); 495448d27cd795dc273249f123444509403f4fa4facDevang Patel FunctionPass *FP = dynamic_cast<FunctionPass*>(P); 496448d27cd795dc273249f123444509403f4fa4facDevang Patel Changed |= FP->runOnFunction(*I); 497c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel removeNotPreservedAnalysis(P); 498df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel removeDeadPasses(P); 499448d27cd795dc273249f123444509403f4fa4facDevang Patel } 500448d27cd795dc273249f123444509403f4fa4facDevang Patel return Changed; 501448d27cd795dc273249f123444509403f4fa4facDevang Patel} 502448d27cd795dc273249f123444509403f4fa4facDevang Patel 503be6d515f481756ff549f355e32be1ac398e141d5Devang Patel/// Return true IFF AnalysisID AID is currently available. 50403153c70de080e4c184ad29f0d78e456019b9a4cDevang PatelPass *FunctionPassManagerImpl_New::getAnalysisPassFromManager(AnalysisID AID) { 505be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 50603153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel Pass *P = getAnalysisPass(AID); 50703153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel if (P) 50803153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel return P; 509be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 510be6d515f481756ff549f355e32be1ac398e141d5Devang Patel if (activeBBPassManager && 511b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel activeBBPassManager->getAnalysisPass(AID) != 0) 51203153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel return activeBBPassManager->getAnalysisPass(AID); 513be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 514be6d515f481756ff549f355e32be1ac398e141d5Devang Patel // TODO : Check inactive managers 51503153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel return NULL; 516be6d515f481756ff549f355e32be1ac398e141d5Devang Patel} 517448d27cd795dc273249f123444509403f4fa4facDevang Patel 51892c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel// ModulePassManager implementation 51992c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 52092c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel/// Add P into pass vector if it is manageble. If P is a FunctionPass 521c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// then use FunctionPassManagerImpl_New to manage it. Return false if P 52292c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel/// is not manageable by this manager. 52392c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patelbool 5242c5d1851bbcb20adb79664ec16ab1f97b9142086Devang PatelModulePassManager_New::addPass(Pass *P) { 52592c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 52692c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel // If P is FunctionPass then use function pass maanager. 52792c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel if (FunctionPass *FP = dynamic_cast<FunctionPass*>(P)) { 52892c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 52992c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel activeFunctionPassManager = NULL; 53092c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 53192c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel if (!activeFunctionPassManager 53292c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel || !activeFunctionPassManager->addPass(P)) { 53392c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 534c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel activeFunctionPassManager = new FunctionPassManagerImpl_New(); 535893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel addPassToManager(activeFunctionPassManager, false); 5362c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel if (!activeFunctionPassManager->addPass(FP)) 5372c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel assert(0 && "Unable to add pass"); 53892c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel } 53992c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel return true; 54092c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel } 54192c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 54292c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel ModulePass *MP = dynamic_cast<ModulePass *>(P); 54392c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel if (!MP) 54492c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel return false; 54592c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 54653596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel // If this pass does not preserve anlysis that is used by other passes 54753596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel // managed by this manager than it is not a suiable pass for this manager. 5482c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel if (!manageablePass(P)) 54953596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel return false; 55053596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel 551e253385b108cd946b1ac150302f246d3b218be77Devang Patel addPassToManager(MP); 55292c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel activeFunctionPassManager = NULL; 55392c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel return true; 55492c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel} 55592c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 55692c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 55792c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel/// Execute all of the passes scheduled for execution by invoking 55892c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel/// runOnModule method. Keep track of whether any of the passes modifies 55992c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel/// the module, and if so, return true. 56092c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patelbool 56192c45eebf77de5d6ee84a3f18f560b83cb68e720Devang PatelModulePassManager_New::runOnModule(Module &M) { 56292c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel bool Changed = false; 563c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel clearAnalysis(); 564c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 565e253385b108cd946b1ac150302f246d3b218be77Devang Patel for (std::vector<Pass *>::iterator itr = passVectorBegin(), 566e253385b108cd946b1ac150302f246d3b218be77Devang Patel e = passVectorEnd(); itr != e; ++itr) { 56792c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel Pass *P = *itr; 568c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 569c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel noteDownAvailableAnalysis(P); 57092c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel ModulePass *MP = dynamic_cast<ModulePass*>(P); 57192c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel Changed |= MP->runOnModule(M); 572c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel removeNotPreservedAnalysis(P); 573df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel removeDeadPasses(P); 57492c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel } 57592c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel return Changed; 57692c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel} 57792c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 578be6d515f481756ff549f355e32be1ac398e141d5Devang Patel/// Return true IFF AnalysisID AID is currently available. 57903153c70de080e4c184ad29f0d78e456019b9a4cDevang PatelPass *ModulePassManager_New::getAnalysisPassFromManager(AnalysisID AID) { 580be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 58103153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel 58203153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel Pass *P = getAnalysisPass(AID); 58303153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel if (P) 58403153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel return P; 585be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 586be6d515f481756ff549f355e32be1ac398e141d5Devang Patel if (activeFunctionPassManager && 587b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel activeFunctionPassManager->getAnalysisPass(AID) != 0) 58803153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel return activeFunctionPassManager->getAnalysisPass(AID); 589be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 590be6d515f481756ff549f355e32be1ac398e141d5Devang Patel // TODO : Check inactive managers 59103153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel return NULL; 592be6d515f481756ff549f355e32be1ac398e141d5Devang Patel} 593be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 594be6d515f481756ff549f355e32be1ac398e141d5Devang Patel/// Return true IFF AnalysisID AID is currently available. 59503153c70de080e4c184ad29f0d78e456019b9a4cDevang PatelPass *PassManagerImpl_New::getAnalysisPassFromManager(AnalysisID AID) { 596be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 59703153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel Pass *P = NULL; 5982718bfbaa6a1ecb37bb34483b09010cbb3563f83Devang Patel for (std::vector<ModulePassManager_New *>::iterator itr = PassManagers.begin(), 59903153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel e = PassManagers.end(); !P && itr != e; ++itr) 60003153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel P = (*itr)->getAnalysisPassFromManager(AID); 60103153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel return P; 602be6d515f481756ff549f355e32be1ac398e141d5Devang Patel} 603be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 604f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel/// Schedule pass P for execution. Make sure that passes required by 605f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel/// P are run before P is run. Update analysis info maintained by 606f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel/// the manager. Remove dead passes. This is a recursive function. 607f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patelvoid PassManagerImpl_New::schedulePass(Pass *P) { 608f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel 609f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel AnalysisUsage AnUsage; 610f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel P->getAnalysisUsage(AnUsage); 611f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel const std::vector<AnalysisID> &RequiredSet = AnUsage.getRequiredSet(); 612f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel for (std::vector<AnalysisID>::const_iterator I = RequiredSet.begin(), 613f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel E = RequiredSet.end(); I != E; ++I) { 614f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel 61503153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel Pass *AnalysisPass = getAnalysisPassFromManager(*I); 61603153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel if (!AnalysisPass) { 617f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel // Schedule this analysis run first. 61803153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel AnalysisPass = (*I)->createPass(); 61903153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel schedulePass(AnalysisPass); 620f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel } 62103153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel setLastUser (AnalysisPass, P); 622f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel } 623f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel 624f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel addPass(P); 625f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel} 626f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel 627b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel/// Schedule all passes from the queue by adding them in their 628b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel/// respective manager's queue. 629f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patelvoid PassManagerImpl_New::schedulePasses() { 630f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel for (std::vector<Pass *>::iterator I = passVectorBegin(), 631f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel E = passVectorEnd(); I != E; ++I) 632f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel schedulePass (*I); 633b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel} 634b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel 635b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel/// Add pass P to the queue of passes to run. 636f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patelvoid PassManagerImpl_New::add(Pass *P) { 637f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel // Do not process Analysis now. Analysis is process while scheduling 638f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel // the pass vector. 639fcb2d940a0f0c471069a65c57c48b847d1b6762eDevang Patel addPassToManager(P, false); 640b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel} 641b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel 642b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel// PassManager_New implementation 643b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel/// Add P into active pass manager or use new module pass manager to 644b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel/// manage it. 645f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patelbool PassManagerImpl_New::addPass(Pass *P) { 646b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel 647a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel if (!activeManager || !activeManager->addPass(P)) { 648b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel activeManager = new ModulePassManager_New(); 649b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel PassManagers.push_back(activeManager); 650b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel } 651b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel 652b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel return activeManager->addPass(P); 653b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel} 654b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel 655b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel/// run - Execute all of the passes scheduled for execution. Keep track of 656b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel/// whether any of the passes modifies the module, and if so, return true. 657f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patelbool PassManagerImpl_New::run(Module &M) { 658b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel 659b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel schedulePasses(); 660b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel bool Changed = false; 661b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel for (std::vector<ModulePassManager_New *>::iterator itr = PassManagers.begin(), 662b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel e = PassManagers.end(); itr != e; ++itr) { 663b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel ModulePassManager_New *pm = *itr; 664b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel Changed |= pm->runOnModule(M); 665b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel } 666b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel return Changed; 667b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel} 6685a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 6695a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// Create new pass manager 6705a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang PatelPassManager_New::PassManager_New() { 6715a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel PM = new PassManagerImpl_New(); 6725a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel} 6735a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 6745a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// add - Add a pass to the queue of passes to run. This passes ownership of 6755a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// the Pass to the PassManager. When the PassManager is destroyed, the pass 6765a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// will be destroyed as well, so there is no need to delete the pass. This 6775a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// implies that all passes MUST be allocated with 'new'. 6785a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patelvoid 6795a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang PatelPassManager_New::add(Pass *P) { 6805a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel PM->add(P); 6815a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel} 6825a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 6835a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// run - Execute all of the passes scheduled for execution. Keep track of 6845a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// whether any of the passes modifies the module, and if so, return true. 6855a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patelbool 6865a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang PatelPassManager_New::run(Module &M) { 6875a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel return PM->run(M); 6885a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel} 6895a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 690