PassManager.cpp revision e61b7478e53cea3183d4aee3799a4f0977b850a0
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" 173799f97d539f6c288d169063e1b335917fafcffbDevang Patel#include "llvm/ModuleProvider.h" 188f487662869d10c866b9ebdccb8f6a7509d3ab56Bill Wendling#include "llvm/Support/Streams.h" 1985d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel#include <vector> 20b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel#include <map> 2155fd43f90913676682487f89f27c756adb827f66Devang Patelusing namespace llvm; 2255fd43f90913676682487f89f27c756adb827f66Devang Patel 23e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel//===----------------------------------------------------------------------===// 24e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// Overview: 25e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// The Pass Manager Infrastructure manages passes. It's responsibilities are: 26e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// 27e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// o Manage optimization pass execution order 28e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// o Make required Analysis information available before pass P is run 29e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// o Release memory occupied by dead passes 30e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// o If Analysis information is dirtied by a pass then regenerate Analysis 31e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// information before it is consumed by another pass. 32e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// 33e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// Pass Manager Infrastructure uses multipe pass managers. They are PassManager, 34e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// FunctionPassManager, ModulePassManager, BasicBlockPassManager. This class 35e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// hierarcy uses multiple inheritance but pass managers do not derive from 36e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// another pass manager. 37e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// 38e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// PassManager and FunctionPassManager are two top level pass manager that 39e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// represents the external interface of this entire pass manager infrastucture. 40e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// 41e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// Important classes : 42e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// 43e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// [o] class PMTopLevelManager; 44e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// 45e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// Two top level managers, PassManager and FunctionPassManager, derive from 46e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// PMTopLevelManager. PMTopLevelManager manages information used by top level 47e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// managers such as last user info. 48e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// 49e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// [o] class PMDataManager; 50e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// 51e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// PMDataManager manages information, e.g. list of available analysis info, 52e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// used by a pass manager to manage execution order of passes. It also provides 53e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// a place to implement common pass manager APIs. All pass managers derive from 54e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// PMDataManager. 55e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// 56e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// [o] class BasicBlockPassManager : public FunctionPass, public PMDataManager; 57e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// 58e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// BasicBlockPassManager manages BasicBlockPasses. 59e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// 60e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// [o] class FunctionPassManager; 61e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// 62e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// This is a external interface used by JIT to manage FunctionPasses. This 63e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// interface relies on FunctionPassManagerImpl to do all the tasks. 64e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// 65e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// [o] class FunctionPassManagerImpl : public ModulePass, PMDataManager, 66e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// public PMTopLevelManager; 67e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// 68e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// FunctionPassManagerImpl is a top level manager. It manages FunctionPasses 69e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// and BasicBlockPassManagers. 70e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// 71e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// [o] class ModulePassManager : public Pass, public PMDataManager; 72e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// 73e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// ModulePassManager manages ModulePasses and FunctionPassManagerImpls. 74e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// 75e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// [o] class PassManager; 76e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// 77e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// This is a external interface used by various tools to manages passes. It 78e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// relies on PassManagerImpl to do all the tasks. 79e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// 80e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// [o] class PassManagerImpl : public Pass, public PMDataManager, 81e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// public PMDTopLevelManager 82e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// 83e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// PassManagerImpl is a top level pass manager responsible for managing 84e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel// ModulePassManagers. 85e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel//===----------------------------------------------------------------------===// 86e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel 87c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelnamespace llvm { 88c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 893f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel//===----------------------------------------------------------------------===// 903f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel// PMTopLevelManager 913f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel// 923f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel/// PMTopLevelManager manages LastUser info and collects common APIs used by 933f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel/// top level pass managers. 943f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patelclass PMTopLevelManager { 953f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel 963f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patelpublic: 973f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel 983f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel inline std::vector<Pass *>::iterator passManagersBegin() { 993f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel return PassManagers.begin(); 1003f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel } 1013f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel 1023f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel inline std::vector<Pass *>::iterator passManagersEnd() { 1033f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel return PassManagers.end(); 1043f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel } 1053f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel 1063f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel /// Schedule pass P for execution. Make sure that passes required by 1073f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel /// P are run before P is run. Update analysis info maintained by 1083f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel /// the manager. Remove dead passes. This is a recursive function. 109e61b7478e53cea3183d4aee3799a4f0977b850a0Devang Patel void schedulePass(Pass *P); 1103f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel 1113f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel /// This is implemented by top level pass manager and used by 1123f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel /// schedulePass() to add analysis info passes that are not available. 1133f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel virtual void addTopLevelPass(Pass *P) = 0; 1143f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel 1153f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel /// Set pass P as the last user of the given analysis passes. 1163f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel void setLastUser(std::vector<Pass *> &AnalysisPasses, Pass *P); 1173f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel 1183f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel /// Collect passes whose last user is P 1193f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel void collectLastUses(std::vector<Pass *> &LastUses, Pass *P); 1203f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel 12169867b511c732a7fac7301977bd6e880e46439f1Devang Patel /// Find the pass that implements Analysis AID. Search immutable 12269867b511c732a7fac7301977bd6e880e46439f1Devang Patel /// passes and all pass managers. If desired pass is not found 12369867b511c732a7fac7301977bd6e880e46439f1Devang Patel /// then return NULL. 12469867b511c732a7fac7301977bd6e880e46439f1Devang Patel Pass *findAnalysisPass(AnalysisID AID); 12569867b511c732a7fac7301977bd6e880e46439f1Devang Patel 1263f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel virtual ~PMTopLevelManager() { 1273f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel PassManagers.clear(); 1283f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel } 1293f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel 1303e44559d0137f2c3e3bf7a0c1e0004e0a5c81137Devang Patel /// Add immutable pass and initialize it. 1313e44559d0137f2c3e3bf7a0c1e0004e0a5c81137Devang Patel inline void addImmutablePass(ImmutablePass *P) { 1323e44559d0137f2c3e3bf7a0c1e0004e0a5c81137Devang Patel P->initializePass(); 1333e44559d0137f2c3e3bf7a0c1e0004e0a5c81137Devang Patel ImmutablePasses.push_back(P); 1343e44559d0137f2c3e3bf7a0c1e0004e0a5c81137Devang Patel } 1353e44559d0137f2c3e3bf7a0c1e0004e0a5c81137Devang Patel 1363e44559d0137f2c3e3bf7a0c1e0004e0a5c81137Devang Patel inline std::vector<ImmutablePass *>& getImmutablePasses() { 1373e44559d0137f2c3e3bf7a0c1e0004e0a5c81137Devang Patel return ImmutablePasses; 1383e44559d0137f2c3e3bf7a0c1e0004e0a5c81137Devang Patel } 1393e44559d0137f2c3e3bf7a0c1e0004e0a5c81137Devang Patel 1403f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patelprivate: 1413f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel 1423f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel /// Collection of pass managers 1433f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel std::vector<Pass *> PassManagers; 1443f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel 1453f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel // Map to keep track of last user of the analysis pass. 1463f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel // LastUser->second is the last user of Lastuser->first. 1473f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel std::map<Pass *, Pass *> LastUser; 1483e44559d0137f2c3e3bf7a0c1e0004e0a5c81137Devang Patel 1493e44559d0137f2c3e3bf7a0c1e0004e0a5c81137Devang Patel /// Immutable passes are managed by top level manager. 1503e44559d0137f2c3e3bf7a0c1e0004e0a5c81137Devang Patel std::vector<ImmutablePass *> ImmutablePasses; 1513f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel}; 1523f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel 1533f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel/// Set pass P as the last user of the given analysis passes. 1543f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patelvoid PMTopLevelManager::setLastUser(std::vector<Pass *> &AnalysisPasses, 1553f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel Pass *P) { 1563f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel 1573f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel for (std::vector<Pass *>::iterator I = AnalysisPasses.begin(), 1583f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel E = AnalysisPasses.end(); I != E; ++I) { 1593f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel Pass *AP = *I; 1603f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel LastUser[AP] = P; 1613f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel // If AP is the last user of other passes then make P last user of 1623f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel // such passes. 1633f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel for (std::map<Pass *, Pass *>::iterator LUI = LastUser.begin(), 1643f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel LUE = LastUser.end(); LUI != LUE; ++LUI) { 1653f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel if (LUI->second == AP) 1663f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel LastUser[LUI->first] = P; 1673f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel } 1683f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel } 1693f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel 1703f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel} 1713f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel 1723f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel/// Collect passes whose last user is P 1733f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patelvoid PMTopLevelManager::collectLastUses(std::vector<Pass *> &LastUses, 1743f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel Pass *P) { 1753f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel for (std::map<Pass *, Pass *>::iterator LUI = LastUser.begin(), 1763f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel LUE = LastUser.end(); LUI != LUE; ++LUI) 1773f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel if (LUI->second == P) 1783f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel LastUses.push_back(LUI->first); 1793f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel} 1803f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel 1811209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel/// Schedule pass P for execution. Make sure that passes required by 1821209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel/// P are run before P is run. Update analysis info maintained by 1831209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel/// the manager. Remove dead passes. This is a recursive function. 184e61b7478e53cea3183d4aee3799a4f0977b850a0Devang Patelvoid PMTopLevelManager::schedulePass(Pass *P) { 1851209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel 1861209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel // TODO : Allocate function manager for this pass, other wise required set 1871209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel // may be inserted into previous function manager 1881209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel 1891209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel AnalysisUsage AnUsage; 1901209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel P->getAnalysisUsage(AnUsage); 1911209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel const std::vector<AnalysisID> &RequiredSet = AnUsage.getRequiredSet(); 1921209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel for (std::vector<AnalysisID>::const_iterator I = RequiredSet.begin(), 1931209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel E = RequiredSet.end(); I != E; ++I) { 1941209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel 19569867b511c732a7fac7301977bd6e880e46439f1Devang Patel Pass *AnalysisPass = findAnalysisPass(*I); 1961209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel if (!AnalysisPass) { 1971209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel // Schedule this analysis run first. 1981209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel AnalysisPass = (*I)->createPass(); 199e61b7478e53cea3183d4aee3799a4f0977b850a0Devang Patel schedulePass(AnalysisPass); 2001209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel } 2011209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel } 2021209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel 2031209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel // Now all required passes are available. 2041209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel addTopLevelPass(P); 2051209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel} 2061209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel 20769867b511c732a7fac7301977bd6e880e46439f1Devang Patel/// Find the pass that implements Analysis AID. Search immutable 20869867b511c732a7fac7301977bd6e880e46439f1Devang Patel/// passes and all pass managers. If desired pass is not found 20969867b511c732a7fac7301977bd6e880e46439f1Devang Patel/// then return NULL. 21069867b511c732a7fac7301977bd6e880e46439f1Devang PatelPass *PMTopLevelManager::findAnalysisPass(AnalysisID AID) { 21169867b511c732a7fac7301977bd6e880e46439f1Devang Patel 21269867b511c732a7fac7301977bd6e880e46439f1Devang Patel Pass *P = NULL; 21369867b511c732a7fac7301977bd6e880e46439f1Devang Patel for (std::vector<ImmutablePass *>::iterator I = ImmutablePasses.begin(), 21469867b511c732a7fac7301977bd6e880e46439f1Devang Patel E = ImmutablePasses.end(); P == NULL && I != E; ++I) { 21569867b511c732a7fac7301977bd6e880e46439f1Devang Patel const PassInfo *PI = (*I)->getPassInfo(); 21669867b511c732a7fac7301977bd6e880e46439f1Devang Patel if (PI == AID) 21769867b511c732a7fac7301977bd6e880e46439f1Devang Patel P = *I; 21869867b511c732a7fac7301977bd6e880e46439f1Devang Patel 21969867b511c732a7fac7301977bd6e880e46439f1Devang Patel // If Pass not found then check the interfaces implemented by Immutable Pass 22069867b511c732a7fac7301977bd6e880e46439f1Devang Patel if (!P) { 22169867b511c732a7fac7301977bd6e880e46439f1Devang Patel const std::vector<const PassInfo*> &ImmPI = 22269867b511c732a7fac7301977bd6e880e46439f1Devang Patel PI->getInterfacesImplemented(); 22369867b511c732a7fac7301977bd6e880e46439f1Devang Patel for (unsigned Index = 0, End = ImmPI.size(); 22469867b511c732a7fac7301977bd6e880e46439f1Devang Patel P == NULL && Index != End; ++Index) 22569867b511c732a7fac7301977bd6e880e46439f1Devang Patel if (ImmPI[Index] == AID) 22669867b511c732a7fac7301977bd6e880e46439f1Devang Patel P = *I; 22769867b511c732a7fac7301977bd6e880e46439f1Devang Patel } 22869867b511c732a7fac7301977bd6e880e46439f1Devang Patel } 22969867b511c732a7fac7301977bd6e880e46439f1Devang Patel 23069867b511c732a7fac7301977bd6e880e46439f1Devang Patel if (P) 23169867b511c732a7fac7301977bd6e880e46439f1Devang Patel return P; 23269867b511c732a7fac7301977bd6e880e46439f1Devang Patel 23369867b511c732a7fac7301977bd6e880e46439f1Devang Patel // Check pass managers; 23469867b511c732a7fac7301977bd6e880e46439f1Devang Patel for (std::vector<Pass *>::iterator I = PassManagers.begin(), 23569867b511c732a7fac7301977bd6e880e46439f1Devang Patel E = PassManagers.end(); P == NULL && I != E; ++I) 23669867b511c732a7fac7301977bd6e880e46439f1Devang Patel P = NULL; // FIXME: (*I)->findAnalysisPass(AID, false /* Search downward */); 23769867b511c732a7fac7301977bd6e880e46439f1Devang Patel 23869867b511c732a7fac7301977bd6e880e46439f1Devang Patel return P; 23969867b511c732a7fac7301977bd6e880e46439f1Devang Patel} 24069867b511c732a7fac7301977bd6e880e46439f1Devang Patel 241dc48f203cdc5a0b8f79d28bab6219161061fd73bDevang Patel//===----------------------------------------------------------------------===// 242dc48f203cdc5a0b8f79d28bab6219161061fd73bDevang Patel// PMDataManager 2433f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel 244419f0e95d698109541ad730cb45ba4caca78f458Devang Patel/// PMDataManager provides the common place to manage the analysis data 245419f0e95d698109541ad730cb45ba4caca78f458Devang Patel/// used by pass managers. 246419f0e95d698109541ad730cb45ba4caca78f458Devang Patelclass PMDataManager { 24785d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 24885d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patelpublic: 24985d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 250f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel PMDataManager(int D) : TPM(NULL), Depth(D) { 251dc48f203cdc5a0b8f79d28bab6219161061fd73bDevang Patel initializeAnalysisInfo(); 252dc48f203cdc5a0b8f79d28bab6219161061fd73bDevang Patel } 253dc48f203cdc5a0b8f79d28bab6219161061fd73bDevang Patel 25485d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel /// Return true IFF pass P's required analysis set does not required new 25585d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel /// manager. 25685d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel bool manageablePass(Pass *P); 25785d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 25885d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel /// Augment AvailableAnalysis by adding analysis made available by pass P. 259f32b4dd13e421b3ad4696f984cb2043ce64e19cbDevang Patel void recordAvailableAnalysis(Pass *P); 26085d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 26185d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel /// Remove Analysis that is not preserved by the pass 26285d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel void removeNotPreservedAnalysis(Pass *P); 26385d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 26485d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel /// Remove dead passes 265df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel void removeDeadPasses(Pass *P); 26685d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 2674045af1175509c81d6a4708df233f0b1abe888fcDevang Patel /// Add pass P into the PassVector. Update 268893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel /// AvailableAnalysis appropriately if ProcessAnalysis is true. 269893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel void addPassToManager (Pass *P, bool ProcessAnalysis = true); 270e253385b108cd946b1ac150302f246d3b218be77Devang Patel 271c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel /// Initialize available analysis information. 272cbfd29d0da5810949ba66701b91c1b954122077aDevang Patel void initializeAnalysisInfo() { 273e16634065021e36ae31f074f623a636924d6b8d1Devang Patel ForcedLastUses.clear(); 274c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel AvailableAnalysis.clear(); 2751b17033bc741814777988b56f5e958355ceb0096Devang Patel 2761b17033bc741814777988b56f5e958355ceb0096Devang Patel // Include immutable passes into AvailableAnalysis vector. 2771b17033bc741814777988b56f5e958355ceb0096Devang Patel std::vector<ImmutablePass *> &ImmutablePasses = TPM->getImmutablePasses(); 2781b17033bc741814777988b56f5e958355ceb0096Devang Patel for (std::vector<ImmutablePass *>::iterator I = ImmutablePasses.begin(), 2791b17033bc741814777988b56f5e958355ceb0096Devang Patel E = ImmutablePasses.end(); I != E; ++I) 2801b17033bc741814777988b56f5e958355ceb0096Devang Patel recordAvailableAnalysis(*I); 281c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel } 282c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 283c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel /// Populate RequiredPasses with the analysis pass that are required by 284c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel /// pass P. 285c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel void collectRequiredAnalysisPasses(std::vector<Pass *> &RequiredPasses, 286c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel Pass *P); 287c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel 288c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel /// All Required analyses should be available to the pass as it runs! Here 289c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel /// we fill in the AnalysisImpls member of the pass so that it can 290c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel /// successfully use the getAnalysis() method to retrieve the 291c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel /// implementations it needs. 292c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel void initializeAnalysisImpl(Pass *P); 293b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel 29469867b511c732a7fac7301977bd6e880e46439f1Devang Patel /// Find the pass that implements Analysis AID. If desired pass is not found 29569867b511c732a7fac7301977bd6e880e46439f1Devang Patel /// then return NULL. 29669867b511c732a7fac7301977bd6e880e46439f1Devang Patel Pass *findAnalysisPass(AnalysisID AID, bool Direction); 29769867b511c732a7fac7301977bd6e880e46439f1Devang Patel 298e253385b108cd946b1ac150302f246d3b218be77Devang Patel inline std::vector<Pass *>::iterator passVectorBegin() { 299e253385b108cd946b1ac150302f246d3b218be77Devang Patel return PassVector.begin(); 300e253385b108cd946b1ac150302f246d3b218be77Devang Patel } 301e253385b108cd946b1ac150302f246d3b218be77Devang Patel 302e253385b108cd946b1ac150302f246d3b218be77Devang Patel inline std::vector<Pass *>::iterator passVectorEnd() { 303e253385b108cd946b1ac150302f246d3b218be77Devang Patel return PassVector.end(); 304e253385b108cd946b1ac150302f246d3b218be77Devang Patel } 305e253385b108cd946b1ac150302f246d3b218be77Devang Patel 306dc48f203cdc5a0b8f79d28bab6219161061fd73bDevang Patel // Access toplevel manager 307dc48f203cdc5a0b8f79d28bab6219161061fd73bDevang Patel PMTopLevelManager *getTopLevelManager() { return TPM; } 308dc48f203cdc5a0b8f79d28bab6219161061fd73bDevang Patel void setTopLevelManager(PMTopLevelManager *T) { TPM = T; } 309dc48f203cdc5a0b8f79d28bab6219161061fd73bDevang Patel 310f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel unsigned getDepth() { return Depth; } 311f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel 312e16634065021e36ae31f074f623a636924d6b8d1Devang Patelprotected: 313e16634065021e36ae31f074f623a636924d6b8d1Devang Patel 314e16634065021e36ae31f074f623a636924d6b8d1Devang Patel // Collection of pass whose last user asked this manager to claim 315e16634065021e36ae31f074f623a636924d6b8d1Devang Patel // last use. If a FunctionPass F is the last user of ModulePass info M 316e16634065021e36ae31f074f623a636924d6b8d1Devang Patel // then the F's manager, not F, records itself as a last user of M. 317e16634065021e36ae31f074f623a636924d6b8d1Devang Patel std::vector<Pass *> ForcedLastUses; 318e16634065021e36ae31f074f623a636924d6b8d1Devang Patel 319e16634065021e36ae31f074f623a636924d6b8d1Devang Patel // Top level manager. 320e16634065021e36ae31f074f623a636924d6b8d1Devang Patel // TODO : Make it a reference. 321e16634065021e36ae31f074f623a636924d6b8d1Devang Patel PMTopLevelManager *TPM; 322e16634065021e36ae31f074f623a636924d6b8d1Devang Patel 32385d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patelprivate: 3245770c7cd52d6a3dfd9a5815cc9153d94afc6dd31Devang Patel // Set of available Analysis. This information is used while scheduling 3255770c7cd52d6a3dfd9a5815cc9153d94afc6dd31Devang Patel // pass. If a pass requires an analysis which is not not available then 3265770c7cd52d6a3dfd9a5815cc9153d94afc6dd31Devang Patel // equired analysis pass is scheduled to run before the pass itself is 3275770c7cd52d6a3dfd9a5815cc9153d94afc6dd31Devang Patel // scheduled to run. 328b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel std::map<AnalysisID, Pass*> AvailableAnalysis; 329e253385b108cd946b1ac150302f246d3b218be77Devang Patel 330e253385b108cd946b1ac150302f246d3b218be77Devang Patel // Collection of pass that are managed by this manager 331e253385b108cd946b1ac150302f246d3b218be77Devang Patel std::vector<Pass *> PassVector; 332dc48f203cdc5a0b8f79d28bab6219161061fd73bDevang Patel 333f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel unsigned Depth; 33485d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel}; 33585d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 336c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// BasicBlockPassManager_New manages BasicBlockPass. It batches all the 337c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// pass together and sequence them to process one basic block before 338c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// processing next basic block. 339419f0e95d698109541ad730cb45ba4caca78f458Devang Patelclass BasicBlockPassManager_New : public PMDataManager, 340abb81054d1ac57014774b092ce3094c47effbddbDevang Patel public FunctionPass { 341c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 342c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelpublic: 343f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel BasicBlockPassManager_New(int D) : PMDataManager(D) { } 344c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 345c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// Add a pass into a passmanager queue. 346c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel bool addPass(Pass *p); 347c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 348c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// Execute all of the passes scheduled for execution. Keep track of 349c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// whether any of the passes modifies the function, and if so, return true. 350c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel bool runOnFunction(Function &F); 351c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 35266d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel /// Pass Manager itself does not invalidate any analysis info. 35366d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel void getAnalysisUsage(AnalysisUsage &Info) const { 35466d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel Info.setPreservesAll(); 35566d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel } 35666d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel 357964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel bool doInitialization(Module &M); 358964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel bool doInitialization(Function &F); 359964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel bool doFinalization(Module &M); 360964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel bool doFinalization(Function &F); 361964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 362c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel}; 363c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 364c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// FunctionPassManagerImpl_New manages FunctionPasses and BasicBlockPassManagers. 365c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// It batches all function passes and basic block pass managers together and 366c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// sequence them to process one function at a time before processing next 367c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// function. 368eb0d613ef6755f93610e08534a203c41ec14b56aDevang Patelclass FunctionPassManagerImpl_New : public ModulePass, 369eb0d613ef6755f93610e08534a203c41ec14b56aDevang Patel public PMDataManager, 370eb0d613ef6755f93610e08534a203c41ec14b56aDevang Patel public PMTopLevelManager { 371c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelpublic: 372f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel FunctionPassManagerImpl_New(ModuleProvider *P, int D) : 373f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel PMDataManager(D) { /* TODO */ } 374f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel FunctionPassManagerImpl_New(int D) : PMDataManager(D) { 375c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel activeBBPassManager = NULL; 376c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel } 377c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel ~FunctionPassManagerImpl_New() { /* TODO */ }; 378c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 379eb0d613ef6755f93610e08534a203c41ec14b56aDevang Patel inline void addTopLevelPass(Pass *P) { 380eb0d613ef6755f93610e08534a203c41ec14b56aDevang Patel addPass(P); 381eb0d613ef6755f93610e08534a203c41ec14b56aDevang Patel } 382eb0d613ef6755f93610e08534a203c41ec14b56aDevang Patel 383c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// add - Add a pass to the queue of passes to run. This passes 384c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// ownership of the Pass to the PassManager. When the 385c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// PassManager_X is destroyed, the pass will be destroyed as well, so 386c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// there is no need to delete the pass. (TODO delete passes.) 387c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// This implies that all passes MUST be allocated with 'new'. 388877bfbb9ef75e7fe333d93abecaf0579780ccf54Devang Patel void add(Pass *P) { 389e61b7478e53cea3183d4aee3799a4f0977b850a0Devang Patel schedulePass(P); 390877bfbb9ef75e7fe333d93abecaf0579780ccf54Devang Patel } 391c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 392c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// Add pass into the pass manager queue. 393c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel bool addPass(Pass *P); 394c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 395c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// Execute all of the passes scheduled for execution. Keep 396c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// track of whether any of the passes modifies the function, and if 397c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// so, return true. 398c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel bool runOnModule(Module &M); 399214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel bool runOnFunction(Function &F); 400c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 4013799f97d539f6c288d169063e1b335917fafcffbDevang Patel /// doInitialization - Run all of the initializers for the function passes. 4023799f97d539f6c288d169063e1b335917fafcffbDevang Patel /// 4033799f97d539f6c288d169063e1b335917fafcffbDevang Patel bool doInitialization(Module &M); 4043799f97d539f6c288d169063e1b335917fafcffbDevang Patel 4053799f97d539f6c288d169063e1b335917fafcffbDevang Patel /// doFinalization - Run all of the initializers for the function passes. 4063799f97d539f6c288d169063e1b335917fafcffbDevang Patel /// 4073799f97d539f6c288d169063e1b335917fafcffbDevang Patel bool doFinalization(Module &M); 40866d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel 40966d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel /// Pass Manager itself does not invalidate any analysis info. 41066d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel void getAnalysisUsage(AnalysisUsage &Info) const { 41166d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel Info.setPreservesAll(); 41266d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel } 41366d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel 414c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelprivate: 415c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel // Active Pass Managers 416c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel BasicBlockPassManager_New *activeBBPassManager; 417c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel}; 418c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 419c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// ModulePassManager_New manages ModulePasses and function pass managers. 420c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// It batches all Module passes passes and function pass managers together and 421c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// sequence them to process one module. 422e16634065021e36ae31f074f623a636924d6b8d1Devang Patelclass ModulePassManager_New : public Pass, 423e16634065021e36ae31f074f623a636924d6b8d1Devang Patel public PMDataManager { 424c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 425c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelpublic: 426f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel ModulePassManager_New(int D) : PMDataManager(D) { 427f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel activeFunctionPassManager = NULL; 428f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel } 429c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 430c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// Add a pass into a passmanager queue. 431c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel bool addPass(Pass *p); 432c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 433c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// run - Execute all of the passes scheduled for execution. Keep track of 434c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// whether any of the passes modifies the module, and if so, return true. 435c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel bool runOnModule(Module &M); 436be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 43766d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel /// Pass Manager itself does not invalidate any analysis info. 43866d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel void getAnalysisUsage(AnalysisUsage &Info) const { 43966d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel Info.setPreservesAll(); 44066d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel } 44166d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel 442c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelprivate: 443c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel // Active Pass Manager 444c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel FunctionPassManagerImpl_New *activeFunctionPassManager; 445c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel}; 446c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 4475a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// PassManager_New manages ModulePassManagers 448877bfbb9ef75e7fe333d93abecaf0579780ccf54Devang Patelclass PassManagerImpl_New : public Pass, 449877bfbb9ef75e7fe333d93abecaf0579780ccf54Devang Patel public PMDataManager, 450eb0d613ef6755f93610e08534a203c41ec14b56aDevang Patel public PMTopLevelManager { 4515a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 4525a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patelpublic: 4535a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 454f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel PassManagerImpl_New(int D) : PMDataManager(D) {} 455f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel 4565a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// add - Add a pass to the queue of passes to run. This passes ownership of 4575a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// the Pass to the PassManager. When the PassManager is destroyed, the pass 4585a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// will be destroyed as well, so there is no need to delete the pass. This 4595a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// implies that all passes MUST be allocated with 'new'. 460877bfbb9ef75e7fe333d93abecaf0579780ccf54Devang Patel void add(Pass *P) { 461e61b7478e53cea3183d4aee3799a4f0977b850a0Devang Patel schedulePass(P); 462877bfbb9ef75e7fe333d93abecaf0579780ccf54Devang Patel } 4635a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 4645a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// run - Execute all of the passes scheduled for execution. Keep track of 4655a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// whether any of the passes modifies the module, and if so, return true. 4665a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel bool run(Module &M); 4675a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 46866d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel /// Pass Manager itself does not invalidate any analysis info. 46966d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel void getAnalysisUsage(AnalysisUsage &Info) const { 47066d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel Info.setPreservesAll(); 47166d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel } 47266d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel 473eb0d613ef6755f93610e08534a203c41ec14b56aDevang Patel inline void addTopLevelPass(Pass *P) { 474eb0d613ef6755f93610e08534a203c41ec14b56aDevang Patel addPass(P); 475eb0d613ef6755f93610e08534a203c41ec14b56aDevang Patel } 476eb0d613ef6755f93610e08534a203c41ec14b56aDevang Patel 4775a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patelprivate: 4785a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 4791209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel /// Add a pass into a passmanager queue. 4805a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel bool addPass(Pass *p); 4815a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 4825a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel // Collection of pass managers 4835a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel std::vector<ModulePassManager_New *> PassManagers; 4845a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 4855a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel // Active Pass Manager 4865a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel ModulePassManager_New *activeManager; 4875a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel}; 4885a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 489c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel} // End of llvm namespace 490c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 49106e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel//===----------------------------------------------------------------------===// 492419f0e95d698109541ad730cb45ba4caca78f458Devang Patel// PMDataManager implementation 493889739c4d188d28c167644bced9df0f3131317d7Devang Patel 4942c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel/// Return true IFF pass P's required analysis set does not required new 495889739c4d188d28c167644bced9df0f3131317d7Devang Patel/// manager. 496419f0e95d698109541ad730cb45ba4caca78f458Devang Patelbool PMDataManager::manageablePass(Pass *P) { 497889739c4d188d28c167644bced9df0f3131317d7Devang Patel 4984045af1175509c81d6a4708df233f0b1abe888fcDevang Patel // TODO 4994045af1175509c81d6a4708df233f0b1abe888fcDevang Patel // If this pass is not preserving information that is required by a 5004045af1175509c81d6a4708df233f0b1abe888fcDevang Patel // pass maintained by higher level pass manager then do not insert 5014045af1175509c81d6a4708df233f0b1abe888fcDevang Patel // this pass into current manager. Use new manager. For example, 5024045af1175509c81d6a4708df233f0b1abe888fcDevang Patel // For example, If FunctionPass F is not preserving ModulePass Info M1 5034045af1175509c81d6a4708df233f0b1abe888fcDevang Patel // that is used by another ModulePass M2 then do not insert F in 5044045af1175509c81d6a4708df233f0b1abe888fcDevang Patel // current function pass manager. 505889739c4d188d28c167644bced9df0f3131317d7Devang Patel return true; 506889739c4d188d28c167644bced9df0f3131317d7Devang Patel} 507889739c4d188d28c167644bced9df0f3131317d7Devang Patel 508b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel/// Augement AvailableAnalysis by adding analysis made available by pass P. 509f32b4dd13e421b3ad4696f984cb2043ce64e19cbDevang Patelvoid PMDataManager::recordAvailableAnalysis(Pass *P) { 510b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel 511b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel if (const PassInfo *PI = P->getPassInfo()) { 512b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel AvailableAnalysis[PI] = P; 513b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel 514f32b4dd13e421b3ad4696f984cb2043ce64e19cbDevang Patel //This pass is the current implementation of all of the interfaces it 515f32b4dd13e421b3ad4696f984cb2043ce64e19cbDevang Patel //implements as well. 516f32b4dd13e421b3ad4696f984cb2043ce64e19cbDevang Patel const std::vector<const PassInfo*> &II = PI->getInterfacesImplemented(); 517f32b4dd13e421b3ad4696f984cb2043ce64e19cbDevang Patel for (unsigned i = 0, e = II.size(); i != e; ++i) 518f32b4dd13e421b3ad4696f984cb2043ce64e19cbDevang Patel AvailableAnalysis[II[i]] = P; 519b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel } 520b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel} 521b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel 522889739c4d188d28c167644bced9df0f3131317d7Devang Patel/// Remove Analyss not preserved by Pass P 523419f0e95d698109541ad730cb45ba4caca78f458Devang Patelvoid PMDataManager::removeNotPreservedAnalysis(Pass *P) { 52414d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel AnalysisUsage AnUsage; 52514d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel P->getAnalysisUsage(AnUsage); 52614d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel 52704b4e0595ffffab232a73a78d742e08efb6ebcfbDevang Patel if (AnUsage.getPreservesAll()) 52804b4e0595ffffab232a73a78d742e08efb6ebcfbDevang Patel return; 52904b4e0595ffffab232a73a78d742e08efb6ebcfbDevang Patel 53004b4e0595ffffab232a73a78d742e08efb6ebcfbDevang Patel const std::vector<AnalysisID> &PreservedSet = AnUsage.getPreservedSet(); 531b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel for (std::map<AnalysisID, Pass*>::iterator I = AvailableAnalysis.begin(), 53214d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel E = AvailableAnalysis.end(); I != E; ++I ) { 533b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel if (std::find(PreservedSet.begin(), PreservedSet.end(), I->first) == 53414d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel PreservedSet.end()) { 53514d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel // Remove this analysis 536b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel std::map<AnalysisID, Pass*>::iterator J = I++; 53714d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel AvailableAnalysis.erase(J); 53814d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel } 53914d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel } 540889739c4d188d28c167644bced9df0f3131317d7Devang Patel} 541889739c4d188d28c167644bced9df0f3131317d7Devang Patel 542df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel/// Remove analysis passes that are not used any longer 543419f0e95d698109541ad730cb45ba4caca78f458Devang Patelvoid PMDataManager::removeDeadPasses(Pass *P) { 544f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel 545f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel std::vector<Pass *> DeadPasses; 546f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel TPM->collectLastUses(DeadPasses, P); 547f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel 548f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel for (std::vector<Pass *>::iterator I = DeadPasses.begin(), 549f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel E = DeadPasses.end(); I != E; ++I) { 550f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel (*I)->releaseMemory(); 551f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel 552f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel std::map<AnalysisID, Pass*>::iterator Pos = 553f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel AvailableAnalysis.find((*I)->getPassInfo()); 554f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel 555964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel // It is possible that pass is already removed from the AvailableAnalysis 556f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel if (Pos != AvailableAnalysis.end()) 557f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel AvailableAnalysis.erase(Pos); 558f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel } 559df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel} 560df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel 5614045af1175509c81d6a4708df233f0b1abe888fcDevang Patel/// Add pass P into the PassVector. Update 562893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel/// AvailableAnalysis appropriately if ProcessAnalysis is true. 56304b4e0595ffffab232a73a78d742e08efb6ebcfbDevang Patelvoid PMDataManager::addPassToManager(Pass *P, 56404b4e0595ffffab232a73a78d742e08efb6ebcfbDevang Patel bool ProcessAnalysis) { 565e253385b108cd946b1ac150302f246d3b218be77Devang Patel 566893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel if (ProcessAnalysis) { 567e16634065021e36ae31f074f623a636924d6b8d1Devang Patel 568e16634065021e36ae31f074f623a636924d6b8d1Devang Patel // At the moment, this pass is the last user of all required passes. 569e16634065021e36ae31f074f623a636924d6b8d1Devang Patel std::vector<Pass *> LastUses; 570e16634065021e36ae31f074f623a636924d6b8d1Devang Patel std::vector<Pass *> RequiredPasses; 571e16634065021e36ae31f074f623a636924d6b8d1Devang Patel unsigned PDepth = this->getDepth(); 572e16634065021e36ae31f074f623a636924d6b8d1Devang Patel 573e16634065021e36ae31f074f623a636924d6b8d1Devang Patel collectRequiredAnalysisPasses(RequiredPasses, P); 574e16634065021e36ae31f074f623a636924d6b8d1Devang Patel for (std::vector<Pass *>::iterator I = RequiredPasses.begin(), 575e16634065021e36ae31f074f623a636924d6b8d1Devang Patel E = RequiredPasses.end(); I != E; ++I) { 576e16634065021e36ae31f074f623a636924d6b8d1Devang Patel Pass *PRequired = *I; 577e16634065021e36ae31f074f623a636924d6b8d1Devang Patel unsigned RDepth = 0; 578e16634065021e36ae31f074f623a636924d6b8d1Devang Patel //FIXME: RDepth = PRequired->getResolver()->getDepth(); 579e16634065021e36ae31f074f623a636924d6b8d1Devang Patel if (PDepth == RDepth) 580e16634065021e36ae31f074f623a636924d6b8d1Devang Patel LastUses.push_back(PRequired); 581e16634065021e36ae31f074f623a636924d6b8d1Devang Patel else if (PDepth > RDepth) { 582e16634065021e36ae31f074f623a636924d6b8d1Devang Patel // Let the parent claim responsibility of last use 583e16634065021e36ae31f074f623a636924d6b8d1Devang Patel ForcedLastUses.push_back(PRequired); 584e16634065021e36ae31f074f623a636924d6b8d1Devang Patel } else { 585e16634065021e36ae31f074f623a636924d6b8d1Devang Patel // Note : This feature is not yet implemented 586e16634065021e36ae31f074f623a636924d6b8d1Devang Patel assert (0 && 587e16634065021e36ae31f074f623a636924d6b8d1Devang Patel "Unable to handle Pass that requires lower level Analysis pass"); 588e16634065021e36ae31f074f623a636924d6b8d1Devang Patel } 589e16634065021e36ae31f074f623a636924d6b8d1Devang Patel } 590e16634065021e36ae31f074f623a636924d6b8d1Devang Patel 591e16634065021e36ae31f074f623a636924d6b8d1Devang Patel if (!LastUses.empty()) 592e16634065021e36ae31f074f623a636924d6b8d1Devang Patel TPM->setLastUser(LastUses, P); 593e16634065021e36ae31f074f623a636924d6b8d1Devang Patel 5940ac961d9c1c511204abfb02f5c25c92da6b75eb6Devang Patel // Take a note of analysis required and made available by this pass. 595893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel // Remove the analysis not preserved by this pass 5960ac961d9c1c511204abfb02f5c25c92da6b75eb6Devang Patel initializeAnalysisImpl(P); 597893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel removeNotPreservedAnalysis(P); 5980ac961d9c1c511204abfb02f5c25c92da6b75eb6Devang Patel recordAvailableAnalysis(P); 599893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel } 600e253385b108cd946b1ac150302f246d3b218be77Devang Patel 601e253385b108cd946b1ac150302f246d3b218be77Devang Patel // Add pass 602e253385b108cd946b1ac150302f246d3b218be77Devang Patel PassVector.push_back(P); 603e253385b108cd946b1ac150302f246d3b218be77Devang Patel} 604e253385b108cd946b1ac150302f246d3b218be77Devang Patel 605c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel/// Populate RequiredPasses with the analysis pass that are required by 606c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel/// pass P. 607c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patelvoid PMDataManager::collectRequiredAnalysisPasses(std::vector<Pass *> &RP, 608c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel Pass *P) { 609c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel AnalysisUsage AnUsage; 610c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel P->getAnalysisUsage(AnUsage); 611c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel const std::vector<AnalysisID> &RequiredSet = AnUsage.getRequiredSet(); 612c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel for (std::vector<AnalysisID>::const_iterator 613c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel I = RequiredSet.begin(), E = RequiredSet.end(); 614c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel I != E; ++I) { 61569867b511c732a7fac7301977bd6e880e46439f1Devang Patel Pass *AnalysisPass = findAnalysisPass(*I, true); 616c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel assert (AnalysisPass && "Analysis pass is not available"); 617c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel RP.push_back(AnalysisPass); 618c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel } 619c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel} 620c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel 6212f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel// All Required analyses should be available to the pass as it runs! Here 6222f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel// we fill in the AnalysisImpls member of the pass so that it can 6232f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel// successfully use the getAnalysis() method to retrieve the 6242f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel// implementations it needs. 6252f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel// 626419f0e95d698109541ad730cb45ba4caca78f458Devang Patelvoid PMDataManager::initializeAnalysisImpl(Pass *P) { 6273799f97d539f6c288d169063e1b335917fafcffbDevang Patel AnalysisUsage AnUsage; 6283799f97d539f6c288d169063e1b335917fafcffbDevang Patel P->getAnalysisUsage(AnUsage); 6292f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel 6302f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel for (std::vector<const PassInfo *>::const_iterator 6312f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel I = AnUsage.getRequiredSet().begin(), 6322f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel E = AnUsage.getRequiredSet().end(); I != E; ++I) { 63369867b511c732a7fac7301977bd6e880e46439f1Devang Patel Pass *Impl = findAnalysisPass(*I, true); 6342f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel if (Impl == 0) 6352f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel assert(0 && "Analysis used but not available!"); 6362f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel // TODO: P->AnalysisImpls.push_back(std::make_pair(*I, Impl)); 6372f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel } 6382f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel} 6392f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel 64069867b511c732a7fac7301977bd6e880e46439f1Devang Patel/// Find the pass that implements Analysis AID. If desired pass is not found 64169867b511c732a7fac7301977bd6e880e46439f1Devang Patel/// then return NULL. 64269867b511c732a7fac7301977bd6e880e46439f1Devang PatelPass *PMDataManager::findAnalysisPass(AnalysisID AID, bool SearchParent) { 64369867b511c732a7fac7301977bd6e880e46439f1Devang Patel 64469867b511c732a7fac7301977bd6e880e46439f1Devang Patel // Check if AvailableAnalysis map has one entry. 64569867b511c732a7fac7301977bd6e880e46439f1Devang Patel std::map<AnalysisID, Pass*>::const_iterator I = AvailableAnalysis.find(AID); 64669867b511c732a7fac7301977bd6e880e46439f1Devang Patel 64769867b511c732a7fac7301977bd6e880e46439f1Devang Patel if (I != AvailableAnalysis.end()) 64869867b511c732a7fac7301977bd6e880e46439f1Devang Patel return I->second; 64969867b511c732a7fac7301977bd6e880e46439f1Devang Patel 65069867b511c732a7fac7301977bd6e880e46439f1Devang Patel // Search Parents through TopLevelManager 65169867b511c732a7fac7301977bd6e880e46439f1Devang Patel if (SearchParent) 65269867b511c732a7fac7301977bd6e880e46439f1Devang Patel return TPM->findAnalysisPass(AID); 65369867b511c732a7fac7301977bd6e880e46439f1Devang Patel 65469867b511c732a7fac7301977bd6e880e46439f1Devang Patel // FIXME : This is expensive and requires. Need to check only managers not all passes. 65569867b511c732a7fac7301977bd6e880e46439f1Devang Patel // One solution is to collect managers in advance at TPM level. 65669867b511c732a7fac7301977bd6e880e46439f1Devang Patel Pass *P = NULL; 65769867b511c732a7fac7301977bd6e880e46439f1Devang Patel for(std::vector<Pass *>::iterator I = passVectorBegin(), 65869867b511c732a7fac7301977bd6e880e46439f1Devang Patel E = passVectorEnd(); P == NULL && I!= E; ++I ) 65969867b511c732a7fac7301977bd6e880e46439f1Devang Patel P = NULL; // FIXME : P = (*I)->getResolver()->getAnalysisToUpdate(AID, false /* Do not search parents again */); 66069867b511c732a7fac7301977bd6e880e46439f1Devang Patel 66169867b511c732a7fac7301977bd6e880e46439f1Devang Patel return P; 66269867b511c732a7fac7301977bd6e880e46439f1Devang Patel} 66369867b511c732a7fac7301977bd6e880e46439f1Devang Patel 66406e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel//===----------------------------------------------------------------------===// 66506e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel// BasicBlockPassManager_New implementation 66655fd43f90913676682487f89f27c756adb827f66Devang Patel 6672c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel/// Add pass P into PassVector and return true. If this pass is not 6682c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel/// manageable by this manager then return false. 66955fd43f90913676682487f89f27c756adb827f66Devang Patelbool 6702c5d1851bbcb20adb79664ec16ab1f97b9142086Devang PatelBasicBlockPassManager_New::addPass(Pass *P) { 67155fd43f90913676682487f89f27c756adb827f66Devang Patel 67255fd43f90913676682487f89f27c756adb827f66Devang Patel BasicBlockPass *BP = dynamic_cast<BasicBlockPass*>(P); 67355fd43f90913676682487f89f27c756adb827f66Devang Patel if (!BP) 67455fd43f90913676682487f89f27c756adb827f66Devang Patel return false; 67555fd43f90913676682487f89f27c756adb827f66Devang Patel 67653596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel // If this pass does not preserve anlysis that is used by other passes 67753596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel // managed by this manager than it is not a suiable pass for this manager. 6782c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel if (!manageablePass(P)) 67953596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel return false; 68053596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel 681e253385b108cd946b1ac150302f246d3b218be77Devang Patel addPassToManager (BP); 68214d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel 68355fd43f90913676682487f89f27c756adb827f66Devang Patel return true; 68455fd43f90913676682487f89f27c756adb827f66Devang Patel} 68555fd43f90913676682487f89f27c756adb827f66Devang Patel 68655fd43f90913676682487f89f27c756adb827f66Devang Patel/// Execute all of the passes scheduled for execution by invoking 68755fd43f90913676682487f89f27c756adb827f66Devang Patel/// runOnBasicBlock method. Keep track of whether any of the passes modifies 68855fd43f90913676682487f89f27c756adb827f66Devang Patel/// the function, and if so, return true. 68955fd43f90913676682487f89f27c756adb827f66Devang Patelbool 69055fd43f90913676682487f89f27c756adb827f66Devang PatelBasicBlockPassManager_New::runOnFunction(Function &F) { 69155fd43f90913676682487f89f27c756adb827f66Devang Patel 6923b14fbe300b96c353a9abfadf481b64324f17375Devang Patel bool Changed = doInitialization(F); 693cbfd29d0da5810949ba66701b91c1b954122077aDevang Patel initializeAnalysisInfo(); 694c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 69555fd43f90913676682487f89f27c756adb827f66Devang Patel for (Function::iterator I = F.begin(), E = F.end(); I != E; ++I) 696e253385b108cd946b1ac150302f246d3b218be77Devang Patel for (std::vector<Pass *>::iterator itr = passVectorBegin(), 697e253385b108cd946b1ac150302f246d3b218be77Devang Patel e = passVectorEnd(); itr != e; ++itr) { 69855fd43f90913676682487f89f27c756adb827f66Devang Patel Pass *P = *itr; 699c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 70055fd43f90913676682487f89f27c756adb827f66Devang Patel BasicBlockPass *BP = dynamic_cast<BasicBlockPass*>(P); 70155fd43f90913676682487f89f27c756adb827f66Devang Patel Changed |= BP->runOnBasicBlock(*I); 702c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel removeNotPreservedAnalysis(P); 7030ac961d9c1c511204abfb02f5c25c92da6b75eb6Devang Patel recordAvailableAnalysis(P); 704df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel removeDeadPasses(P); 70555fd43f90913676682487f89f27c756adb827f66Devang Patel } 7063b14fbe300b96c353a9abfadf481b64324f17375Devang Patel return Changed | doFinalization(F); 70755fd43f90913676682487f89f27c756adb827f66Devang Patel} 70855fd43f90913676682487f89f27c756adb827f66Devang Patel 709964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel// Implement doInitialization and doFinalization 710964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patelinline bool BasicBlockPassManager_New::doInitialization(Module &M) { 711964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel bool Changed = false; 712964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 713964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel for (std::vector<Pass *>::iterator itr = passVectorBegin(), 714964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel e = passVectorEnd(); itr != e; ++itr) { 715964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel Pass *P = *itr; 716964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel BasicBlockPass *BP = dynamic_cast<BasicBlockPass*>(P); 717964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel Changed |= BP->doInitialization(M); 718964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel } 719964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 720964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel return Changed; 721964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel} 722964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 723964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patelinline bool BasicBlockPassManager_New::doFinalization(Module &M) { 724964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel bool Changed = false; 725964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 726964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel for (std::vector<Pass *>::iterator itr = passVectorBegin(), 727964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel e = passVectorEnd(); itr != e; ++itr) { 728964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel Pass *P = *itr; 729964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel BasicBlockPass *BP = dynamic_cast<BasicBlockPass*>(P); 730964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel Changed |= BP->doFinalization(M); 731964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel } 732964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 733964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel return Changed; 734964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel} 735964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 736964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patelinline bool BasicBlockPassManager_New::doInitialization(Function &F) { 737964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel bool Changed = false; 738964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 739964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel for (std::vector<Pass *>::iterator itr = passVectorBegin(), 740964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel e = passVectorEnd(); itr != e; ++itr) { 741964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel Pass *P = *itr; 742964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel BasicBlockPass *BP = dynamic_cast<BasicBlockPass*>(P); 743964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel Changed |= BP->doInitialization(F); 744964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel } 745964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 746964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel return Changed; 747964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel} 748964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 749964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patelinline bool BasicBlockPassManager_New::doFinalization(Function &F) { 750964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel bool Changed = false; 751964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 752964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel for (std::vector<Pass *>::iterator itr = passVectorBegin(), 753964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel e = passVectorEnd(); itr != e; ++itr) { 754964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel Pass *P = *itr; 755964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel BasicBlockPass *BP = dynamic_cast<BasicBlockPass*>(P); 756964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel Changed |= BP->doFinalization(F); 757964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel } 758964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 759964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel return Changed; 760964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel} 761964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 762964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 76306e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel//===----------------------------------------------------------------------===// 764448d27cd795dc273249f123444509403f4fa4facDevang Patel// FunctionPassManager_New implementation 76506e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel 766c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// Create new Function pass manager 767c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang PatelFunctionPassManager_New::FunctionPassManager_New() { 768f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel FPM = new FunctionPassManagerImpl_New(0); 769c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel} 770c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel 771cc132cd9feef765fe70284183c0f997b4faa5483Devang PatelFunctionPassManager_New::FunctionPassManager_New(ModuleProvider *P) { 772cc132cd9feef765fe70284183c0f997b4faa5483Devang Patel FPM = new FunctionPassManagerImpl_New(0); 773cc132cd9feef765fe70284183c0f997b4faa5483Devang Patel MP = P; 774cc132cd9feef765fe70284183c0f997b4faa5483Devang Patel} 775cc132cd9feef765fe70284183c0f997b4faa5483Devang Patel 776c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// add - Add a pass to the queue of passes to run. This passes 777c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// ownership of the Pass to the PassManager. When the 778c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// PassManager_X is destroyed, the pass will be destroyed as well, so 779c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// there is no need to delete the pass. (TODO delete passes.) 780c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// This implies that all passes MUST be allocated with 'new'. 781214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patelvoid FunctionPassManager_New::add(Pass *P) { 782c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel FPM->add(P); 783c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel} 784c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel 785c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// Execute all of the passes scheduled for execution. Keep 786c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// track of whether any of the passes modifies the function, and if 787c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// so, return true. 788214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patelbool FunctionPassManager_New::runOnModule(Module &M) { 789c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel return FPM->runOnModule(M); 790c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel} 791c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel 792214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel/// run - Execute all of the passes scheduled for execution. Keep 793214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel/// track of whether any of the passes modifies the function, and if 794214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel/// so, return true. 795214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel/// 796214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patelbool FunctionPassManager_New::run(Function &F) { 797214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel std::string errstr; 798214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel if (MP->materializeFunction(&F, &errstr)) { 799e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling cerr << "Error reading bytecode file: " << errstr << "\n"; 800214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel abort(); 801214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel } 802214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel return FPM->runOnFunction(F); 803214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel} 804214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel 805214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel 8063799f97d539f6c288d169063e1b335917fafcffbDevang Patel/// doInitialization - Run all of the initializers for the function passes. 8073799f97d539f6c288d169063e1b335917fafcffbDevang Patel/// 8083799f97d539f6c288d169063e1b335917fafcffbDevang Patelbool FunctionPassManager_New::doInitialization() { 8093799f97d539f6c288d169063e1b335917fafcffbDevang Patel return FPM->doInitialization(*MP->getModule()); 8103799f97d539f6c288d169063e1b335917fafcffbDevang Patel} 8113799f97d539f6c288d169063e1b335917fafcffbDevang Patel 8123799f97d539f6c288d169063e1b335917fafcffbDevang Patel/// doFinalization - Run all of the initializers for the function passes. 8133799f97d539f6c288d169063e1b335917fafcffbDevang Patel/// 8143799f97d539f6c288d169063e1b335917fafcffbDevang Patelbool FunctionPassManager_New::doFinalization() { 8153799f97d539f6c288d169063e1b335917fafcffbDevang Patel return FPM->doFinalization(*MP->getModule()); 8163799f97d539f6c288d169063e1b335917fafcffbDevang Patel} 8173799f97d539f6c288d169063e1b335917fafcffbDevang Patel 81806e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel//===----------------------------------------------------------------------===// 819c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel// FunctionPassManagerImpl_New implementation 820448d27cd795dc273249f123444509403f4fa4facDevang Patel 821448d27cd795dc273249f123444509403f4fa4facDevang Patel/// Add pass P into the pass manager queue. If P is a BasicBlockPass then 822448d27cd795dc273249f123444509403f4fa4facDevang Patel/// either use it into active basic block pass manager or create new basic 823448d27cd795dc273249f123444509403f4fa4facDevang Patel/// block pass manager to handle pass P. 824448d27cd795dc273249f123444509403f4fa4facDevang Patelbool 825c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang PatelFunctionPassManagerImpl_New::addPass(Pass *P) { 826448d27cd795dc273249f123444509403f4fa4facDevang Patel 827448d27cd795dc273249f123444509403f4fa4facDevang Patel // If P is a BasicBlockPass then use BasicBlockPassManager_New. 828448d27cd795dc273249f123444509403f4fa4facDevang Patel if (BasicBlockPass *BP = dynamic_cast<BasicBlockPass*>(P)) { 829448d27cd795dc273249f123444509403f4fa4facDevang Patel 830badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel if (!activeBBPassManager || !activeBBPassManager->addPass(BP)) { 831448d27cd795dc273249f123444509403f4fa4facDevang Patel 832badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel // If active manager exists then clear its analysis info. 833badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel if (activeBBPassManager) 834badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel activeBBPassManager->initializeAnalysisInfo(); 835b917e38c84fa9c7c434762a0e587af63eec939e5Devang Patel 836badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel // Create and add new manager 837f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel activeBBPassManager = 838f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel new BasicBlockPassManager_New(getDepth() + 1); 839893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel addPassToManager(activeBBPassManager, false); 840badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel 841badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel // Add pass into new manager. This time it must succeed. 8422c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel if (!activeBBPassManager->addPass(BP)) 8432c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel assert(0 && "Unable to add Pass"); 844448d27cd795dc273249f123444509403f4fa4facDevang Patel } 845e16634065021e36ae31f074f623a636924d6b8d1Devang Patel 846e16634065021e36ae31f074f623a636924d6b8d1Devang Patel if (!ForcedLastUses.empty()) 847e16634065021e36ae31f074f623a636924d6b8d1Devang Patel TPM->setLastUser(ForcedLastUses, this); 848e16634065021e36ae31f074f623a636924d6b8d1Devang Patel 849448d27cd795dc273249f123444509403f4fa4facDevang Patel return true; 850448d27cd795dc273249f123444509403f4fa4facDevang Patel } 851448d27cd795dc273249f123444509403f4fa4facDevang Patel 852448d27cd795dc273249f123444509403f4fa4facDevang Patel FunctionPass *FP = dynamic_cast<FunctionPass *>(P); 853448d27cd795dc273249f123444509403f4fa4facDevang Patel if (!FP) 854448d27cd795dc273249f123444509403f4fa4facDevang Patel return false; 855448d27cd795dc273249f123444509403f4fa4facDevang Patel 85653596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel // If this pass does not preserve anlysis that is used by other passes 85753596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel // managed by this manager than it is not a suiable pass for this manager. 8582c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel if (!manageablePass(P)) 85953596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel return false; 86053596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel 861e253385b108cd946b1ac150302f246d3b218be77Devang Patel addPassToManager (FP); 862badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel 863badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel // If active manager exists then clear its analysis info. 864badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel if (activeBBPassManager) { 865badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel activeBBPassManager->initializeAnalysisInfo(); 866badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel activeBBPassManager = NULL; 867badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel } 868badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel 869448d27cd795dc273249f123444509403f4fa4facDevang Patel return true; 870448d27cd795dc273249f123444509403f4fa4facDevang Patel} 871448d27cd795dc273249f123444509403f4fa4facDevang Patel 872448d27cd795dc273249f123444509403f4fa4facDevang Patel/// Execute all of the passes scheduled for execution by invoking 873448d27cd795dc273249f123444509403f4fa4facDevang Patel/// runOnFunction method. Keep track of whether any of the passes modifies 874448d27cd795dc273249f123444509403f4fa4facDevang Patel/// the function, and if so, return true. 875214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patelbool FunctionPassManagerImpl_New::runOnModule(Module &M) { 876448d27cd795dc273249f123444509403f4fa4facDevang Patel 8774d9a186b10dacf1d702ef32c2638e9016d8f483bDevang Patel bool Changed = doInitialization(M); 878cbfd29d0da5810949ba66701b91c1b954122077aDevang Patel initializeAnalysisInfo(); 879c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 880448d27cd795dc273249f123444509403f4fa4facDevang Patel for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I) 88197856ceeab2297e09c46c2390f7b3d818df6f1f7Devang Patel this->runOnFunction(*I); 88297856ceeab2297e09c46c2390f7b3d818df6f1f7Devang Patel 8834d9a186b10dacf1d702ef32c2638e9016d8f483bDevang Patel return Changed | doFinalization(M); 884448d27cd795dc273249f123444509403f4fa4facDevang Patel} 885448d27cd795dc273249f123444509403f4fa4facDevang Patel 886214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel/// Execute all of the passes scheduled for execution by invoking 887214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel/// runOnFunction method. Keep track of whether any of the passes modifies 888214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel/// the function, and if so, return true. 889214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patelbool FunctionPassManagerImpl_New::runOnFunction(Function &F) { 890214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel 891214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel bool Changed = false; 892cbfd29d0da5810949ba66701b91c1b954122077aDevang Patel initializeAnalysisInfo(); 893214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel 894214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel for (std::vector<Pass *>::iterator itr = passVectorBegin(), 895214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel e = passVectorEnd(); itr != e; ++itr) { 896214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel Pass *P = *itr; 897214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel 898214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel FunctionPass *FP = dynamic_cast<FunctionPass*>(P); 899214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel Changed |= FP->runOnFunction(F); 900214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel removeNotPreservedAnalysis(P); 9010ac961d9c1c511204abfb02f5c25c92da6b75eb6Devang Patel recordAvailableAnalysis(P); 902214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel removeDeadPasses(P); 903214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel } 904214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel return Changed; 905214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel} 906214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel 907214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel 9083799f97d539f6c288d169063e1b335917fafcffbDevang Patelinline bool FunctionPassManagerImpl_New::doInitialization(Module &M) { 9093799f97d539f6c288d169063e1b335917fafcffbDevang Patel bool Changed = false; 9103799f97d539f6c288d169063e1b335917fafcffbDevang Patel 9113799f97d539f6c288d169063e1b335917fafcffbDevang Patel for (std::vector<Pass *>::iterator itr = passVectorBegin(), 9123799f97d539f6c288d169063e1b335917fafcffbDevang Patel e = passVectorEnd(); itr != e; ++itr) { 9133799f97d539f6c288d169063e1b335917fafcffbDevang Patel Pass *P = *itr; 9143799f97d539f6c288d169063e1b335917fafcffbDevang Patel 9153799f97d539f6c288d169063e1b335917fafcffbDevang Patel FunctionPass *FP = dynamic_cast<FunctionPass*>(P); 9163799f97d539f6c288d169063e1b335917fafcffbDevang Patel Changed |= FP->doInitialization(M); 9173799f97d539f6c288d169063e1b335917fafcffbDevang Patel } 9183799f97d539f6c288d169063e1b335917fafcffbDevang Patel 9193799f97d539f6c288d169063e1b335917fafcffbDevang Patel return Changed; 9203799f97d539f6c288d169063e1b335917fafcffbDevang Patel} 9213799f97d539f6c288d169063e1b335917fafcffbDevang Patel 9223799f97d539f6c288d169063e1b335917fafcffbDevang Patelinline bool FunctionPassManagerImpl_New::doFinalization(Module &M) { 9233799f97d539f6c288d169063e1b335917fafcffbDevang Patel bool Changed = false; 9243799f97d539f6c288d169063e1b335917fafcffbDevang Patel 9253799f97d539f6c288d169063e1b335917fafcffbDevang Patel for (std::vector<Pass *>::iterator itr = passVectorBegin(), 9263799f97d539f6c288d169063e1b335917fafcffbDevang Patel e = passVectorEnd(); itr != e; ++itr) { 9273799f97d539f6c288d169063e1b335917fafcffbDevang Patel Pass *P = *itr; 9283799f97d539f6c288d169063e1b335917fafcffbDevang Patel 9293799f97d539f6c288d169063e1b335917fafcffbDevang Patel FunctionPass *FP = dynamic_cast<FunctionPass*>(P); 9303799f97d539f6c288d169063e1b335917fafcffbDevang Patel Changed |= FP->doFinalization(M); 9313799f97d539f6c288d169063e1b335917fafcffbDevang Patel } 9323799f97d539f6c288d169063e1b335917fafcffbDevang Patel 9333799f97d539f6c288d169063e1b335917fafcffbDevang Patel return Changed; 9343799f97d539f6c288d169063e1b335917fafcffbDevang Patel} 9353799f97d539f6c288d169063e1b335917fafcffbDevang Patel 93606e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel//===----------------------------------------------------------------------===// 93792c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel// ModulePassManager implementation 93892c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 93992c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel/// Add P into pass vector if it is manageble. If P is a FunctionPass 940c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// then use FunctionPassManagerImpl_New to manage it. Return false if P 94192c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel/// is not manageable by this manager. 94292c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patelbool 9432c5d1851bbcb20adb79664ec16ab1f97b9142086Devang PatelModulePassManager_New::addPass(Pass *P) { 94492c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 94592c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel // If P is FunctionPass then use function pass maanager. 94692c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel if (FunctionPass *FP = dynamic_cast<FunctionPass*>(P)) { 94792c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 94869867b511c732a7fac7301977bd6e880e46439f1Devang Patel if (!activeFunctionPassManager || !activeFunctionPassManager->addPass(P)) { 94992c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 950badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel // If active manager exists then clear its analysis info. 951badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel if (activeFunctionPassManager) 952badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel activeFunctionPassManager->initializeAnalysisInfo(); 953b917e38c84fa9c7c434762a0e587af63eec939e5Devang Patel 954badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel // Create and add new manager 955f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel activeFunctionPassManager = 956f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel new FunctionPassManagerImpl_New(getDepth() + 1); 957893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel addPassToManager(activeFunctionPassManager, false); 958badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel 959badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel // Add pass into new manager. This time it must succeed. 9602c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel if (!activeFunctionPassManager->addPass(FP)) 9612c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel assert(0 && "Unable to add pass"); 96292c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel } 963e16634065021e36ae31f074f623a636924d6b8d1Devang Patel 964e16634065021e36ae31f074f623a636924d6b8d1Devang Patel if (!ForcedLastUses.empty()) 965e16634065021e36ae31f074f623a636924d6b8d1Devang Patel TPM->setLastUser(ForcedLastUses, this); 966e16634065021e36ae31f074f623a636924d6b8d1Devang Patel 96792c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel return true; 96892c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel } 96992c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 97092c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel ModulePass *MP = dynamic_cast<ModulePass *>(P); 97192c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel if (!MP) 97292c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel return false; 97392c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 97453596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel // If this pass does not preserve anlysis that is used by other passes 97553596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel // managed by this manager than it is not a suiable pass for this manager. 9762c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel if (!manageablePass(P)) 97753596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel return false; 97853596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel 979e253385b108cd946b1ac150302f246d3b218be77Devang Patel addPassToManager(MP); 980badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel // If active manager exists then clear its analysis info. 981badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel if (activeFunctionPassManager) { 982badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel activeFunctionPassManager->initializeAnalysisInfo(); 983badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel activeFunctionPassManager = NULL; 984badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel } 985badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel 98692c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel return true; 98792c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel} 98892c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 98992c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 99092c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel/// Execute all of the passes scheduled for execution by invoking 99192c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel/// runOnModule method. Keep track of whether any of the passes modifies 99292c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel/// the module, and if so, return true. 99392c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patelbool 99492c45eebf77de5d6ee84a3f18f560b83cb68e720Devang PatelModulePassManager_New::runOnModule(Module &M) { 99592c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel bool Changed = false; 996cbfd29d0da5810949ba66701b91c1b954122077aDevang Patel initializeAnalysisInfo(); 997c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 998e253385b108cd946b1ac150302f246d3b218be77Devang Patel for (std::vector<Pass *>::iterator itr = passVectorBegin(), 999e253385b108cd946b1ac150302f246d3b218be77Devang Patel e = passVectorEnd(); itr != e; ++itr) { 100092c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel Pass *P = *itr; 1001c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 100292c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel ModulePass *MP = dynamic_cast<ModulePass*>(P); 100392c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel Changed |= MP->runOnModule(M); 1004c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel removeNotPreservedAnalysis(P); 10050ac961d9c1c511204abfb02f5c25c92da6b75eb6Devang Patel recordAvailableAnalysis(P); 1006df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel removeDeadPasses(P); 100792c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel } 100892c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel return Changed; 100992c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel} 101092c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 101106e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel//===----------------------------------------------------------------------===// 101206e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel// PassManagerImpl implementation 101306e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel 1014b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel// PassManager_New implementation 1015b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel/// Add P into active pass manager or use new module pass manager to 1016b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel/// manage it. 1017f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patelbool PassManagerImpl_New::addPass(Pass *P) { 1018b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel 1019a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel if (!activeManager || !activeManager->addPass(P)) { 1020f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel activeManager = new ModulePassManager_New(getDepth() + 1); 1021b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel PassManagers.push_back(activeManager); 1022502f19e0f8ba47b5916a7e9d445f4ee071cdf132Devang Patel return activeManager->addPass(P); 1023b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel } 1024502f19e0f8ba47b5916a7e9d445f4ee071cdf132Devang Patel return true; 1025b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel} 1026b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel 1027b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel/// run - Execute all of the passes scheduled for execution. Keep track of 1028b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel/// whether any of the passes modifies the module, and if so, return true. 1029f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patelbool PassManagerImpl_New::run(Module &M) { 1030b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel 1031b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel bool Changed = false; 1032b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel for (std::vector<ModulePassManager_New *>::iterator itr = PassManagers.begin(), 1033b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel e = PassManagers.end(); itr != e; ++itr) { 1034b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel ModulePassManager_New *pm = *itr; 1035b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel Changed |= pm->runOnModule(M); 1036b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel } 1037b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel return Changed; 1038b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel} 10395a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 104006e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel//===----------------------------------------------------------------------===// 104106e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel// PassManager implementation 104206e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel 10435a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// Create new pass manager 10445a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang PatelPassManager_New::PassManager_New() { 1045f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel PM = new PassManagerImpl_New(0); 10465a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel} 10475a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 10485a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// add - Add a pass to the queue of passes to run. This passes ownership of 10495a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// the Pass to the PassManager. When the PassManager is destroyed, the pass 10505a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// will be destroyed as well, so there is no need to delete the pass. This 10515a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// implies that all passes MUST be allocated with 'new'. 10525a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patelvoid 10535a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang PatelPassManager_New::add(Pass *P) { 10545a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel PM->add(P); 10555a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel} 10565a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 10575a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// run - Execute all of the passes scheduled for execution. Keep track of 10585a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// whether any of the passes modifies the module, and if so, return true. 10595a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patelbool 10605a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang PatelPassManager_New::run(Module &M) { 10615a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel return PM->run(M); 10625a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel} 10635a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 1064