PassManager.cpp revision c475692c5ee2f9c0c6988b7ec28768ef6690bfb0
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 140a083e94f7971ddafb817b1bcd86992d9fc4d8f9eDevang Patel void addPassManager(Pass *Manager) { 141a083e94f7971ddafb817b1bcd86992d9fc4d8f9eDevang Patel PassManagers.push_back(Manager); 142a083e94f7971ddafb817b1bcd86992d9fc4d8f9eDevang Patel } 143a083e94f7971ddafb817b1bcd86992d9fc4d8f9eDevang Patel 1443f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patelprivate: 1453f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel 1463f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel /// Collection of pass managers 1473f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel std::vector<Pass *> PassManagers; 1483f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel 1493f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel // Map to keep track of last user of the analysis pass. 1503f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel // LastUser->second is the last user of Lastuser->first. 1513f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel std::map<Pass *, Pass *> LastUser; 1523e44559d0137f2c3e3bf7a0c1e0004e0a5c81137Devang Patel 1533e44559d0137f2c3e3bf7a0c1e0004e0a5c81137Devang Patel /// Immutable passes are managed by top level manager. 1543e44559d0137f2c3e3bf7a0c1e0004e0a5c81137Devang Patel std::vector<ImmutablePass *> ImmutablePasses; 1553f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel}; 1563f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel 1573f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel/// Set pass P as the last user of the given analysis passes. 1583f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patelvoid PMTopLevelManager::setLastUser(std::vector<Pass *> &AnalysisPasses, 1593f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel Pass *P) { 1603f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel 1613f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel for (std::vector<Pass *>::iterator I = AnalysisPasses.begin(), 1623f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel E = AnalysisPasses.end(); I != E; ++I) { 1633f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel Pass *AP = *I; 1643f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel LastUser[AP] = P; 1653f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel // If AP is the last user of other passes then make P last user of 1663f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel // such passes. 1673f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel for (std::map<Pass *, Pass *>::iterator LUI = LastUser.begin(), 1683f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel LUE = LastUser.end(); LUI != LUE; ++LUI) { 1693f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel if (LUI->second == AP) 1703f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel LastUser[LUI->first] = P; 1713f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel } 1723f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel } 1733f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel 1743f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel} 1753f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel 1763f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel/// Collect passes whose last user is P 1773f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patelvoid PMTopLevelManager::collectLastUses(std::vector<Pass *> &LastUses, 1783f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel Pass *P) { 1793f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel for (std::map<Pass *, Pass *>::iterator LUI = LastUser.begin(), 1803f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel LUE = LastUser.end(); LUI != LUE; ++LUI) 1813f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel if (LUI->second == P) 1823f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel LastUses.push_back(LUI->first); 1833f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel} 1843f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel 1851209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel/// Schedule pass P for execution. Make sure that passes required by 1861209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel/// P are run before P is run. Update analysis info maintained by 1871209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel/// the manager. Remove dead passes. This is a recursive function. 188e61b7478e53cea3183d4aee3799a4f0977b850a0Devang Patelvoid PMTopLevelManager::schedulePass(Pass *P) { 1891209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel 1901209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel // TODO : Allocate function manager for this pass, other wise required set 1911209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel // may be inserted into previous function manager 1921209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel 1931209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel AnalysisUsage AnUsage; 1941209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel P->getAnalysisUsage(AnUsage); 1951209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel const std::vector<AnalysisID> &RequiredSet = AnUsage.getRequiredSet(); 1961209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel for (std::vector<AnalysisID>::const_iterator I = RequiredSet.begin(), 1971209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel E = RequiredSet.end(); I != E; ++I) { 1981209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel 19969867b511c732a7fac7301977bd6e880e46439f1Devang Patel Pass *AnalysisPass = findAnalysisPass(*I); 2001209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel if (!AnalysisPass) { 2011209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel // Schedule this analysis run first. 2021209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel AnalysisPass = (*I)->createPass(); 203e61b7478e53cea3183d4aee3799a4f0977b850a0Devang Patel schedulePass(AnalysisPass); 2041209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel } 2051209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel } 2061209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel 2071209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel // Now all required passes are available. 2081209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel addTopLevelPass(P); 2091209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel} 2101209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel 21169867b511c732a7fac7301977bd6e880e46439f1Devang Patel/// Find the pass that implements Analysis AID. Search immutable 21269867b511c732a7fac7301977bd6e880e46439f1Devang Patel/// passes and all pass managers. If desired pass is not found 21369867b511c732a7fac7301977bd6e880e46439f1Devang Patel/// then return NULL. 21469867b511c732a7fac7301977bd6e880e46439f1Devang PatelPass *PMTopLevelManager::findAnalysisPass(AnalysisID AID) { 21569867b511c732a7fac7301977bd6e880e46439f1Devang Patel 21669867b511c732a7fac7301977bd6e880e46439f1Devang Patel Pass *P = NULL; 21769867b511c732a7fac7301977bd6e880e46439f1Devang Patel for (std::vector<ImmutablePass *>::iterator I = ImmutablePasses.begin(), 21869867b511c732a7fac7301977bd6e880e46439f1Devang Patel E = ImmutablePasses.end(); P == NULL && I != E; ++I) { 21969867b511c732a7fac7301977bd6e880e46439f1Devang Patel const PassInfo *PI = (*I)->getPassInfo(); 22069867b511c732a7fac7301977bd6e880e46439f1Devang Patel if (PI == AID) 22169867b511c732a7fac7301977bd6e880e46439f1Devang Patel P = *I; 22269867b511c732a7fac7301977bd6e880e46439f1Devang Patel 22369867b511c732a7fac7301977bd6e880e46439f1Devang Patel // If Pass not found then check the interfaces implemented by Immutable Pass 22469867b511c732a7fac7301977bd6e880e46439f1Devang Patel if (!P) { 22569867b511c732a7fac7301977bd6e880e46439f1Devang Patel const std::vector<const PassInfo*> &ImmPI = 22669867b511c732a7fac7301977bd6e880e46439f1Devang Patel PI->getInterfacesImplemented(); 22769867b511c732a7fac7301977bd6e880e46439f1Devang Patel for (unsigned Index = 0, End = ImmPI.size(); 22869867b511c732a7fac7301977bd6e880e46439f1Devang Patel P == NULL && Index != End; ++Index) 22969867b511c732a7fac7301977bd6e880e46439f1Devang Patel if (ImmPI[Index] == AID) 23069867b511c732a7fac7301977bd6e880e46439f1Devang Patel P = *I; 23169867b511c732a7fac7301977bd6e880e46439f1Devang Patel } 23269867b511c732a7fac7301977bd6e880e46439f1Devang Patel } 23369867b511c732a7fac7301977bd6e880e46439f1Devang Patel 23469867b511c732a7fac7301977bd6e880e46439f1Devang Patel if (P) 23569867b511c732a7fac7301977bd6e880e46439f1Devang Patel return P; 23669867b511c732a7fac7301977bd6e880e46439f1Devang Patel 23769867b511c732a7fac7301977bd6e880e46439f1Devang Patel // Check pass managers; 23869867b511c732a7fac7301977bd6e880e46439f1Devang Patel for (std::vector<Pass *>::iterator I = PassManagers.begin(), 23969867b511c732a7fac7301977bd6e880e46439f1Devang Patel E = PassManagers.end(); P == NULL && I != E; ++I) 24069867b511c732a7fac7301977bd6e880e46439f1Devang Patel P = NULL; // FIXME: (*I)->findAnalysisPass(AID, false /* Search downward */); 24169867b511c732a7fac7301977bd6e880e46439f1Devang Patel 24269867b511c732a7fac7301977bd6e880e46439f1Devang Patel return P; 24369867b511c732a7fac7301977bd6e880e46439f1Devang Patel} 24469867b511c732a7fac7301977bd6e880e46439f1Devang Patel 245dc48f203cdc5a0b8f79d28bab6219161061fd73bDevang Patel//===----------------------------------------------------------------------===// 246dc48f203cdc5a0b8f79d28bab6219161061fd73bDevang Patel// PMDataManager 2473f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel 248419f0e95d698109541ad730cb45ba4caca78f458Devang Patel/// PMDataManager provides the common place to manage the analysis data 249419f0e95d698109541ad730cb45ba4caca78f458Devang Patel/// used by pass managers. 250419f0e95d698109541ad730cb45ba4caca78f458Devang Patelclass PMDataManager { 25185d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 25285d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patelpublic: 25385d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 254f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel PMDataManager(int D) : TPM(NULL), Depth(D) { 255dc48f203cdc5a0b8f79d28bab6219161061fd73bDevang Patel initializeAnalysisInfo(); 256dc48f203cdc5a0b8f79d28bab6219161061fd73bDevang Patel } 257dc48f203cdc5a0b8f79d28bab6219161061fd73bDevang Patel 25885d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel /// Return true IFF pass P's required analysis set does not required new 25985d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel /// manager. 26085d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel bool manageablePass(Pass *P); 26185d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 26285d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel /// Augment AvailableAnalysis by adding analysis made available by pass P. 263f32b4dd13e421b3ad4696f984cb2043ce64e19cbDevang Patel void recordAvailableAnalysis(Pass *P); 26485d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 26585d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel /// Remove Analysis that is not preserved by the pass 26685d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel void removeNotPreservedAnalysis(Pass *P); 26785d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 26885d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel /// Remove dead passes 269df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel void removeDeadPasses(Pass *P); 27085d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 2714045af1175509c81d6a4708df233f0b1abe888fcDevang Patel /// Add pass P into the PassVector. Update 272893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel /// AvailableAnalysis appropriately if ProcessAnalysis is true. 273893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel void addPassToManager (Pass *P, bool ProcessAnalysis = true); 274e253385b108cd946b1ac150302f246d3b218be77Devang Patel 275c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel /// Initialize available analysis information. 276cbfd29d0da5810949ba66701b91c1b954122077aDevang Patel void initializeAnalysisInfo() { 277e16634065021e36ae31f074f623a636924d6b8d1Devang Patel ForcedLastUses.clear(); 278c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel AvailableAnalysis.clear(); 2791b17033bc741814777988b56f5e958355ceb0096Devang Patel 2801b17033bc741814777988b56f5e958355ceb0096Devang Patel // Include immutable passes into AvailableAnalysis vector. 2811b17033bc741814777988b56f5e958355ceb0096Devang Patel std::vector<ImmutablePass *> &ImmutablePasses = TPM->getImmutablePasses(); 2821b17033bc741814777988b56f5e958355ceb0096Devang Patel for (std::vector<ImmutablePass *>::iterator I = ImmutablePasses.begin(), 2831b17033bc741814777988b56f5e958355ceb0096Devang Patel E = ImmutablePasses.end(); I != E; ++I) 2841b17033bc741814777988b56f5e958355ceb0096Devang Patel recordAvailableAnalysis(*I); 285c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel } 286c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 287c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel /// Populate RequiredPasses with the analysis pass that are required by 288c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel /// pass P. 289c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel void collectRequiredAnalysisPasses(std::vector<Pass *> &RequiredPasses, 290c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel Pass *P); 291c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel 292c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel /// All Required analyses should be available to the pass as it runs! Here 293c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel /// we fill in the AnalysisImpls member of the pass so that it can 294c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel /// successfully use the getAnalysis() method to retrieve the 295c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel /// implementations it needs. 296c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel void initializeAnalysisImpl(Pass *P); 297b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel 29869867b511c732a7fac7301977bd6e880e46439f1Devang Patel /// Find the pass that implements Analysis AID. If desired pass is not found 29969867b511c732a7fac7301977bd6e880e46439f1Devang Patel /// then return NULL. 30069867b511c732a7fac7301977bd6e880e46439f1Devang Patel Pass *findAnalysisPass(AnalysisID AID, bool Direction); 30169867b511c732a7fac7301977bd6e880e46439f1Devang Patel 302e253385b108cd946b1ac150302f246d3b218be77Devang Patel inline std::vector<Pass *>::iterator passVectorBegin() { 303e253385b108cd946b1ac150302f246d3b218be77Devang Patel return PassVector.begin(); 304e253385b108cd946b1ac150302f246d3b218be77Devang Patel } 305e253385b108cd946b1ac150302f246d3b218be77Devang Patel 306e253385b108cd946b1ac150302f246d3b218be77Devang Patel inline std::vector<Pass *>::iterator passVectorEnd() { 307e253385b108cd946b1ac150302f246d3b218be77Devang Patel return PassVector.end(); 308e253385b108cd946b1ac150302f246d3b218be77Devang Patel } 309e253385b108cd946b1ac150302f246d3b218be77Devang Patel 310dc48f203cdc5a0b8f79d28bab6219161061fd73bDevang Patel // Access toplevel manager 311dc48f203cdc5a0b8f79d28bab6219161061fd73bDevang Patel PMTopLevelManager *getTopLevelManager() { return TPM; } 312dc48f203cdc5a0b8f79d28bab6219161061fd73bDevang Patel void setTopLevelManager(PMTopLevelManager *T) { TPM = T; } 313dc48f203cdc5a0b8f79d28bab6219161061fd73bDevang Patel 314f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel unsigned getDepth() { return Depth; } 315f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel 316e16634065021e36ae31f074f623a636924d6b8d1Devang Patelprotected: 317e16634065021e36ae31f074f623a636924d6b8d1Devang Patel 318e16634065021e36ae31f074f623a636924d6b8d1Devang Patel // Collection of pass whose last user asked this manager to claim 319e16634065021e36ae31f074f623a636924d6b8d1Devang Patel // last use. If a FunctionPass F is the last user of ModulePass info M 320e16634065021e36ae31f074f623a636924d6b8d1Devang Patel // then the F's manager, not F, records itself as a last user of M. 321e16634065021e36ae31f074f623a636924d6b8d1Devang Patel std::vector<Pass *> ForcedLastUses; 322e16634065021e36ae31f074f623a636924d6b8d1Devang Patel 323e16634065021e36ae31f074f623a636924d6b8d1Devang Patel // Top level manager. 324e16634065021e36ae31f074f623a636924d6b8d1Devang Patel // TODO : Make it a reference. 325e16634065021e36ae31f074f623a636924d6b8d1Devang Patel PMTopLevelManager *TPM; 326e16634065021e36ae31f074f623a636924d6b8d1Devang Patel 32785d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patelprivate: 3285770c7cd52d6a3dfd9a5815cc9153d94afc6dd31Devang Patel // Set of available Analysis. This information is used while scheduling 3295770c7cd52d6a3dfd9a5815cc9153d94afc6dd31Devang Patel // pass. If a pass requires an analysis which is not not available then 3305770c7cd52d6a3dfd9a5815cc9153d94afc6dd31Devang Patel // equired analysis pass is scheduled to run before the pass itself is 3315770c7cd52d6a3dfd9a5815cc9153d94afc6dd31Devang Patel // scheduled to run. 332b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel std::map<AnalysisID, Pass*> AvailableAnalysis; 333e253385b108cd946b1ac150302f246d3b218be77Devang Patel 334e253385b108cd946b1ac150302f246d3b218be77Devang Patel // Collection of pass that are managed by this manager 335e253385b108cd946b1ac150302f246d3b218be77Devang Patel std::vector<Pass *> PassVector; 336dc48f203cdc5a0b8f79d28bab6219161061fd73bDevang Patel 337f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel unsigned Depth; 33885d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel}; 33985d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 340c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// BasicBlockPassManager_New manages BasicBlockPass. It batches all the 341c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// pass together and sequence them to process one basic block before 342c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// processing next basic block. 343419f0e95d698109541ad730cb45ba4caca78f458Devang Patelclass BasicBlockPassManager_New : public PMDataManager, 344abb81054d1ac57014774b092ce3094c47effbddbDevang Patel public FunctionPass { 345c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 346c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelpublic: 347f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel BasicBlockPassManager_New(int D) : PMDataManager(D) { } 348c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 349c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// Add a pass into a passmanager queue. 350c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel bool addPass(Pass *p); 351c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 352c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// Execute all of the passes scheduled for execution. Keep track of 353c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// whether any of the passes modifies the function, and if so, return true. 354c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel bool runOnFunction(Function &F); 355c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 35666d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel /// Pass Manager itself does not invalidate any analysis info. 35766d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel void getAnalysisUsage(AnalysisUsage &Info) const { 35866d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel Info.setPreservesAll(); 35966d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel } 36066d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel 361964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel bool doInitialization(Module &M); 362964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel bool doInitialization(Function &F); 363964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel bool doFinalization(Module &M); 364964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel bool doFinalization(Function &F); 365964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 366c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel}; 367c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 368c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// FunctionPassManagerImpl_New manages FunctionPasses and BasicBlockPassManagers. 369c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// It batches all function passes and basic block pass managers together and 370c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// sequence them to process one function at a time before processing next 371c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// function. 372eb0d613ef6755f93610e08534a203c41ec14b56aDevang Patelclass FunctionPassManagerImpl_New : public ModulePass, 373eb0d613ef6755f93610e08534a203c41ec14b56aDevang Patel public PMDataManager, 374eb0d613ef6755f93610e08534a203c41ec14b56aDevang Patel public PMTopLevelManager { 375c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelpublic: 376f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel FunctionPassManagerImpl_New(ModuleProvider *P, int D) : 377f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel PMDataManager(D) { /* TODO */ } 378f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel FunctionPassManagerImpl_New(int D) : PMDataManager(D) { 379c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel activeBBPassManager = NULL; 380c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel } 381c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel ~FunctionPassManagerImpl_New() { /* TODO */ }; 382c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 383eb0d613ef6755f93610e08534a203c41ec14b56aDevang Patel inline void addTopLevelPass(Pass *P) { 384eb0d613ef6755f93610e08534a203c41ec14b56aDevang Patel addPass(P); 385eb0d613ef6755f93610e08534a203c41ec14b56aDevang Patel } 386eb0d613ef6755f93610e08534a203c41ec14b56aDevang Patel 387c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// add - Add a pass to the queue of passes to run. This passes 388c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// ownership of the Pass to the PassManager. When the 389c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// PassManager_X is destroyed, the pass will be destroyed as well, so 390c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// there is no need to delete the pass. (TODO delete passes.) 391c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// This implies that all passes MUST be allocated with 'new'. 392877bfbb9ef75e7fe333d93abecaf0579780ccf54Devang Patel void add(Pass *P) { 393e61b7478e53cea3183d4aee3799a4f0977b850a0Devang Patel schedulePass(P); 394877bfbb9ef75e7fe333d93abecaf0579780ccf54Devang Patel } 395c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 396c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// Add pass into the pass manager queue. 397c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel bool addPass(Pass *P); 398c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 399c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// Execute all of the passes scheduled for execution. Keep 400c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// track of whether any of the passes modifies the function, and if 401c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// so, return true. 402c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel bool runOnModule(Module &M); 403214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel bool runOnFunction(Function &F); 404c475692c5ee2f9c0c6988b7ec28768ef6690bfb0Devang Patel bool run(Function &F); 405c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 4063799f97d539f6c288d169063e1b335917fafcffbDevang Patel /// doInitialization - Run all of the initializers for the function passes. 4073799f97d539f6c288d169063e1b335917fafcffbDevang Patel /// 4083799f97d539f6c288d169063e1b335917fafcffbDevang Patel bool doInitialization(Module &M); 4093799f97d539f6c288d169063e1b335917fafcffbDevang Patel 4103799f97d539f6c288d169063e1b335917fafcffbDevang Patel /// doFinalization - Run all of the initializers for the function passes. 4113799f97d539f6c288d169063e1b335917fafcffbDevang Patel /// 4123799f97d539f6c288d169063e1b335917fafcffbDevang Patel bool doFinalization(Module &M); 41366d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel 41466d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel /// Pass Manager itself does not invalidate any analysis info. 41566d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel void getAnalysisUsage(AnalysisUsage &Info) const { 41666d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel Info.setPreservesAll(); 41766d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel } 41866d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel 419c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelprivate: 420c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel // Active Pass Managers 421c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel BasicBlockPassManager_New *activeBBPassManager; 422c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel}; 423c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 424c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// ModulePassManager_New manages ModulePasses and function pass managers. 425c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// It batches all Module passes passes and function pass managers together and 426c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// sequence them to process one module. 427e16634065021e36ae31f074f623a636924d6b8d1Devang Patelclass ModulePassManager_New : public Pass, 428e16634065021e36ae31f074f623a636924d6b8d1Devang Patel public PMDataManager { 429c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 430c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelpublic: 431f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel ModulePassManager_New(int D) : PMDataManager(D) { 432f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel activeFunctionPassManager = NULL; 433f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel } 434c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 435c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// Add a pass into a passmanager queue. 436c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel bool addPass(Pass *p); 437c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 438c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// run - Execute all of the passes scheduled for execution. Keep track of 439c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// whether any of the passes modifies the module, and if so, return true. 440c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel bool runOnModule(Module &M); 441be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 44266d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel /// Pass Manager itself does not invalidate any analysis info. 44366d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel void getAnalysisUsage(AnalysisUsage &Info) const { 44466d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel Info.setPreservesAll(); 44566d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel } 44666d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel 447c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelprivate: 448c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel // Active Pass Manager 449c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel FunctionPassManagerImpl_New *activeFunctionPassManager; 450c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel}; 451c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 4525a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// PassManager_New manages ModulePassManagers 453877bfbb9ef75e7fe333d93abecaf0579780ccf54Devang Patelclass PassManagerImpl_New : public Pass, 454877bfbb9ef75e7fe333d93abecaf0579780ccf54Devang Patel public PMDataManager, 455eb0d613ef6755f93610e08534a203c41ec14b56aDevang Patel public PMTopLevelManager { 4565a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 4575a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patelpublic: 4585a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 459f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel PassManagerImpl_New(int D) : PMDataManager(D) {} 460f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel 4615a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// add - Add a pass to the queue of passes to run. This passes ownership of 4625a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// the Pass to the PassManager. When the PassManager is destroyed, the pass 4635a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// will be destroyed as well, so there is no need to delete the pass. This 4645a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// implies that all passes MUST be allocated with 'new'. 465877bfbb9ef75e7fe333d93abecaf0579780ccf54Devang Patel void add(Pass *P) { 466e61b7478e53cea3183d4aee3799a4f0977b850a0Devang Patel schedulePass(P); 467877bfbb9ef75e7fe333d93abecaf0579780ccf54Devang Patel } 4685a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 4695a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// run - Execute all of the passes scheduled for execution. Keep track of 4705a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// whether any of the passes modifies the module, and if so, return true. 4715a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel bool run(Module &M); 4725a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 47366d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel /// Pass Manager itself does not invalidate any analysis info. 47466d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel void getAnalysisUsage(AnalysisUsage &Info) const { 47566d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel Info.setPreservesAll(); 47666d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel } 47766d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel 478eb0d613ef6755f93610e08534a203c41ec14b56aDevang Patel inline void addTopLevelPass(Pass *P) { 479eb0d613ef6755f93610e08534a203c41ec14b56aDevang Patel addPass(P); 480eb0d613ef6755f93610e08534a203c41ec14b56aDevang Patel } 481eb0d613ef6755f93610e08534a203c41ec14b56aDevang Patel 4825a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patelprivate: 4835a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 4841209f416cf2f2ec0f335d91a7c115e3b0a37d603Devang Patel /// Add a pass into a passmanager queue. 4855a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel bool addPass(Pass *p); 4865a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 4875a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel // Active Pass Manager 4885a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel ModulePassManager_New *activeManager; 4895a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel}; 4905a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 491c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel} // End of llvm namespace 492c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 49306e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel//===----------------------------------------------------------------------===// 494419f0e95d698109541ad730cb45ba4caca78f458Devang Patel// PMDataManager implementation 495889739c4d188d28c167644bced9df0f3131317d7Devang Patel 4962c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel/// Return true IFF pass P's required analysis set does not required new 497889739c4d188d28c167644bced9df0f3131317d7Devang Patel/// manager. 498419f0e95d698109541ad730cb45ba4caca78f458Devang Patelbool PMDataManager::manageablePass(Pass *P) { 499889739c4d188d28c167644bced9df0f3131317d7Devang Patel 5004045af1175509c81d6a4708df233f0b1abe888fcDevang Patel // TODO 5014045af1175509c81d6a4708df233f0b1abe888fcDevang Patel // If this pass is not preserving information that is required by a 5024045af1175509c81d6a4708df233f0b1abe888fcDevang Patel // pass maintained by higher level pass manager then do not insert 5034045af1175509c81d6a4708df233f0b1abe888fcDevang Patel // this pass into current manager. Use new manager. For example, 5044045af1175509c81d6a4708df233f0b1abe888fcDevang Patel // For example, If FunctionPass F is not preserving ModulePass Info M1 5054045af1175509c81d6a4708df233f0b1abe888fcDevang Patel // that is used by another ModulePass M2 then do not insert F in 5064045af1175509c81d6a4708df233f0b1abe888fcDevang Patel // current function pass manager. 507889739c4d188d28c167644bced9df0f3131317d7Devang Patel return true; 508889739c4d188d28c167644bced9df0f3131317d7Devang Patel} 509889739c4d188d28c167644bced9df0f3131317d7Devang Patel 510b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel/// Augement AvailableAnalysis by adding analysis made available by pass P. 511f32b4dd13e421b3ad4696f984cb2043ce64e19cbDevang Patelvoid PMDataManager::recordAvailableAnalysis(Pass *P) { 512b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel 513b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel if (const PassInfo *PI = P->getPassInfo()) { 514b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel AvailableAnalysis[PI] = P; 515b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel 516f32b4dd13e421b3ad4696f984cb2043ce64e19cbDevang Patel //This pass is the current implementation of all of the interfaces it 517f32b4dd13e421b3ad4696f984cb2043ce64e19cbDevang Patel //implements as well. 518f32b4dd13e421b3ad4696f984cb2043ce64e19cbDevang Patel const std::vector<const PassInfo*> &II = PI->getInterfacesImplemented(); 519f32b4dd13e421b3ad4696f984cb2043ce64e19cbDevang Patel for (unsigned i = 0, e = II.size(); i != e; ++i) 520f32b4dd13e421b3ad4696f984cb2043ce64e19cbDevang Patel AvailableAnalysis[II[i]] = P; 521b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel } 522b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel} 523b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel 524889739c4d188d28c167644bced9df0f3131317d7Devang Patel/// Remove Analyss not preserved by Pass P 525419f0e95d698109541ad730cb45ba4caca78f458Devang Patelvoid PMDataManager::removeNotPreservedAnalysis(Pass *P) { 52614d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel AnalysisUsage AnUsage; 52714d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel P->getAnalysisUsage(AnUsage); 52814d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel 52904b4e0595ffffab232a73a78d742e08efb6ebcfbDevang Patel if (AnUsage.getPreservesAll()) 53004b4e0595ffffab232a73a78d742e08efb6ebcfbDevang Patel return; 53104b4e0595ffffab232a73a78d742e08efb6ebcfbDevang Patel 53204b4e0595ffffab232a73a78d742e08efb6ebcfbDevang Patel const std::vector<AnalysisID> &PreservedSet = AnUsage.getPreservedSet(); 533b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel for (std::map<AnalysisID, Pass*>::iterator I = AvailableAnalysis.begin(), 53414d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel E = AvailableAnalysis.end(); I != E; ++I ) { 535b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel if (std::find(PreservedSet.begin(), PreservedSet.end(), I->first) == 53614d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel PreservedSet.end()) { 53714d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel // Remove this analysis 538b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel std::map<AnalysisID, Pass*>::iterator J = I++; 53914d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel AvailableAnalysis.erase(J); 54014d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel } 54114d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel } 542889739c4d188d28c167644bced9df0f3131317d7Devang Patel} 543889739c4d188d28c167644bced9df0f3131317d7Devang Patel 544df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel/// Remove analysis passes that are not used any longer 545419f0e95d698109541ad730cb45ba4caca78f458Devang Patelvoid PMDataManager::removeDeadPasses(Pass *P) { 546f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel 547f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel std::vector<Pass *> DeadPasses; 548f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel TPM->collectLastUses(DeadPasses, P); 549f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel 550f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel for (std::vector<Pass *>::iterator I = DeadPasses.begin(), 551f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel E = DeadPasses.end(); I != E; ++I) { 552f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel (*I)->releaseMemory(); 553f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel 554f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel std::map<AnalysisID, Pass*>::iterator Pos = 555f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel AvailableAnalysis.find((*I)->getPassInfo()); 556f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel 557964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel // It is possible that pass is already removed from the AvailableAnalysis 558f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel if (Pos != AvailableAnalysis.end()) 559f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel AvailableAnalysis.erase(Pos); 560f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel } 561df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel} 562df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel 5634045af1175509c81d6a4708df233f0b1abe888fcDevang Patel/// Add pass P into the PassVector. Update 564893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel/// AvailableAnalysis appropriately if ProcessAnalysis is true. 56504b4e0595ffffab232a73a78d742e08efb6ebcfbDevang Patelvoid PMDataManager::addPassToManager(Pass *P, 56604b4e0595ffffab232a73a78d742e08efb6ebcfbDevang Patel bool ProcessAnalysis) { 567e253385b108cd946b1ac150302f246d3b218be77Devang Patel 568893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel if (ProcessAnalysis) { 569e16634065021e36ae31f074f623a636924d6b8d1Devang Patel 570e16634065021e36ae31f074f623a636924d6b8d1Devang Patel // At the moment, this pass is the last user of all required passes. 571e16634065021e36ae31f074f623a636924d6b8d1Devang Patel std::vector<Pass *> LastUses; 572e16634065021e36ae31f074f623a636924d6b8d1Devang Patel std::vector<Pass *> RequiredPasses; 573e16634065021e36ae31f074f623a636924d6b8d1Devang Patel unsigned PDepth = this->getDepth(); 574e16634065021e36ae31f074f623a636924d6b8d1Devang Patel 575e16634065021e36ae31f074f623a636924d6b8d1Devang Patel collectRequiredAnalysisPasses(RequiredPasses, P); 576e16634065021e36ae31f074f623a636924d6b8d1Devang Patel for (std::vector<Pass *>::iterator I = RequiredPasses.begin(), 577e16634065021e36ae31f074f623a636924d6b8d1Devang Patel E = RequiredPasses.end(); I != E; ++I) { 578e16634065021e36ae31f074f623a636924d6b8d1Devang Patel Pass *PRequired = *I; 579e16634065021e36ae31f074f623a636924d6b8d1Devang Patel unsigned RDepth = 0; 580e16634065021e36ae31f074f623a636924d6b8d1Devang Patel //FIXME: RDepth = PRequired->getResolver()->getDepth(); 581e16634065021e36ae31f074f623a636924d6b8d1Devang Patel if (PDepth == RDepth) 582e16634065021e36ae31f074f623a636924d6b8d1Devang Patel LastUses.push_back(PRequired); 583e16634065021e36ae31f074f623a636924d6b8d1Devang Patel else if (PDepth > RDepth) { 584e16634065021e36ae31f074f623a636924d6b8d1Devang Patel // Let the parent claim responsibility of last use 585e16634065021e36ae31f074f623a636924d6b8d1Devang Patel ForcedLastUses.push_back(PRequired); 586e16634065021e36ae31f074f623a636924d6b8d1Devang Patel } else { 587e16634065021e36ae31f074f623a636924d6b8d1Devang Patel // Note : This feature is not yet implemented 588e16634065021e36ae31f074f623a636924d6b8d1Devang Patel assert (0 && 589e16634065021e36ae31f074f623a636924d6b8d1Devang Patel "Unable to handle Pass that requires lower level Analysis pass"); 590e16634065021e36ae31f074f623a636924d6b8d1Devang Patel } 591e16634065021e36ae31f074f623a636924d6b8d1Devang Patel } 592e16634065021e36ae31f074f623a636924d6b8d1Devang Patel 593e16634065021e36ae31f074f623a636924d6b8d1Devang Patel if (!LastUses.empty()) 594e16634065021e36ae31f074f623a636924d6b8d1Devang Patel TPM->setLastUser(LastUses, P); 595e16634065021e36ae31f074f623a636924d6b8d1Devang Patel 5960ac961d9c1c511204abfb02f5c25c92da6b75eb6Devang Patel // Take a note of analysis required and made available by this pass. 597893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel // Remove the analysis not preserved by this pass 5980ac961d9c1c511204abfb02f5c25c92da6b75eb6Devang Patel initializeAnalysisImpl(P); 599893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel removeNotPreservedAnalysis(P); 6000ac961d9c1c511204abfb02f5c25c92da6b75eb6Devang Patel recordAvailableAnalysis(P); 601893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel } 602e253385b108cd946b1ac150302f246d3b218be77Devang Patel 603e253385b108cd946b1ac150302f246d3b218be77Devang Patel // Add pass 604e253385b108cd946b1ac150302f246d3b218be77Devang Patel PassVector.push_back(P); 605e253385b108cd946b1ac150302f246d3b218be77Devang Patel} 606e253385b108cd946b1ac150302f246d3b218be77Devang Patel 607c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel/// Populate RequiredPasses with the analysis pass that are required by 608c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel/// pass P. 609c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patelvoid PMDataManager::collectRequiredAnalysisPasses(std::vector<Pass *> &RP, 610c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel Pass *P) { 611c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel AnalysisUsage AnUsage; 612c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel P->getAnalysisUsage(AnUsage); 613c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel const std::vector<AnalysisID> &RequiredSet = AnUsage.getRequiredSet(); 614c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel for (std::vector<AnalysisID>::const_iterator 615c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel I = RequiredSet.begin(), E = RequiredSet.end(); 616c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel I != E; ++I) { 61769867b511c732a7fac7301977bd6e880e46439f1Devang Patel Pass *AnalysisPass = findAnalysisPass(*I, true); 618c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel assert (AnalysisPass && "Analysis pass is not available"); 619c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel RP.push_back(AnalysisPass); 620c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel } 621c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel} 622c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel 6232f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel// All Required analyses should be available to the pass as it runs! Here 6242f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel// we fill in the AnalysisImpls member of the pass so that it can 6252f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel// successfully use the getAnalysis() method to retrieve the 6262f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel// implementations it needs. 6272f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel// 628419f0e95d698109541ad730cb45ba4caca78f458Devang Patelvoid PMDataManager::initializeAnalysisImpl(Pass *P) { 6293799f97d539f6c288d169063e1b335917fafcffbDevang Patel AnalysisUsage AnUsage; 6303799f97d539f6c288d169063e1b335917fafcffbDevang Patel P->getAnalysisUsage(AnUsage); 6312f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel 6322f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel for (std::vector<const PassInfo *>::const_iterator 6332f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel I = AnUsage.getRequiredSet().begin(), 6342f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel E = AnUsage.getRequiredSet().end(); I != E; ++I) { 63569867b511c732a7fac7301977bd6e880e46439f1Devang Patel Pass *Impl = findAnalysisPass(*I, true); 6362f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel if (Impl == 0) 6372f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel assert(0 && "Analysis used but not available!"); 6382f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel // TODO: P->AnalysisImpls.push_back(std::make_pair(*I, Impl)); 6392f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel } 6402f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel} 6412f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel 64269867b511c732a7fac7301977bd6e880e46439f1Devang Patel/// Find the pass that implements Analysis AID. If desired pass is not found 64369867b511c732a7fac7301977bd6e880e46439f1Devang Patel/// then return NULL. 64469867b511c732a7fac7301977bd6e880e46439f1Devang PatelPass *PMDataManager::findAnalysisPass(AnalysisID AID, bool SearchParent) { 64569867b511c732a7fac7301977bd6e880e46439f1Devang Patel 64669867b511c732a7fac7301977bd6e880e46439f1Devang Patel // Check if AvailableAnalysis map has one entry. 64769867b511c732a7fac7301977bd6e880e46439f1Devang Patel std::map<AnalysisID, Pass*>::const_iterator I = AvailableAnalysis.find(AID); 64869867b511c732a7fac7301977bd6e880e46439f1Devang Patel 64969867b511c732a7fac7301977bd6e880e46439f1Devang Patel if (I != AvailableAnalysis.end()) 65069867b511c732a7fac7301977bd6e880e46439f1Devang Patel return I->second; 65169867b511c732a7fac7301977bd6e880e46439f1Devang Patel 65269867b511c732a7fac7301977bd6e880e46439f1Devang Patel // Search Parents through TopLevelManager 65369867b511c732a7fac7301977bd6e880e46439f1Devang Patel if (SearchParent) 65469867b511c732a7fac7301977bd6e880e46439f1Devang Patel return TPM->findAnalysisPass(AID); 65569867b511c732a7fac7301977bd6e880e46439f1Devang Patel 65669867b511c732a7fac7301977bd6e880e46439f1Devang Patel // FIXME : This is expensive and requires. Need to check only managers not all passes. 65769867b511c732a7fac7301977bd6e880e46439f1Devang Patel // One solution is to collect managers in advance at TPM level. 65869867b511c732a7fac7301977bd6e880e46439f1Devang Patel Pass *P = NULL; 65969867b511c732a7fac7301977bd6e880e46439f1Devang Patel for(std::vector<Pass *>::iterator I = passVectorBegin(), 66069867b511c732a7fac7301977bd6e880e46439f1Devang Patel E = passVectorEnd(); P == NULL && I!= E; ++I ) 66169867b511c732a7fac7301977bd6e880e46439f1Devang Patel P = NULL; // FIXME : P = (*I)->getResolver()->getAnalysisToUpdate(AID, false /* Do not search parents again */); 66269867b511c732a7fac7301977bd6e880e46439f1Devang Patel 66369867b511c732a7fac7301977bd6e880e46439f1Devang Patel return P; 66469867b511c732a7fac7301977bd6e880e46439f1Devang Patel} 66569867b511c732a7fac7301977bd6e880e46439f1Devang Patel 66606e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel//===----------------------------------------------------------------------===// 66706e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel// BasicBlockPassManager_New implementation 66855fd43f90913676682487f89f27c756adb827f66Devang Patel 6692c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel/// Add pass P into PassVector and return true. If this pass is not 6702c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel/// manageable by this manager then return false. 67155fd43f90913676682487f89f27c756adb827f66Devang Patelbool 6722c5d1851bbcb20adb79664ec16ab1f97b9142086Devang PatelBasicBlockPassManager_New::addPass(Pass *P) { 67355fd43f90913676682487f89f27c756adb827f66Devang Patel 67455fd43f90913676682487f89f27c756adb827f66Devang Patel BasicBlockPass *BP = dynamic_cast<BasicBlockPass*>(P); 67555fd43f90913676682487f89f27c756adb827f66Devang Patel if (!BP) 67655fd43f90913676682487f89f27c756adb827f66Devang Patel return false; 67755fd43f90913676682487f89f27c756adb827f66Devang Patel 67853596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel // If this pass does not preserve anlysis that is used by other passes 67953596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel // managed by this manager than it is not a suiable pass for this manager. 6802c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel if (!manageablePass(P)) 68153596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel return false; 68253596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel 683e253385b108cd946b1ac150302f246d3b218be77Devang Patel addPassToManager (BP); 68414d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel 68555fd43f90913676682487f89f27c756adb827f66Devang Patel return true; 68655fd43f90913676682487f89f27c756adb827f66Devang Patel} 68755fd43f90913676682487f89f27c756adb827f66Devang Patel 68855fd43f90913676682487f89f27c756adb827f66Devang Patel/// Execute all of the passes scheduled for execution by invoking 68955fd43f90913676682487f89f27c756adb827f66Devang Patel/// runOnBasicBlock method. Keep track of whether any of the passes modifies 69055fd43f90913676682487f89f27c756adb827f66Devang Patel/// the function, and if so, return true. 69155fd43f90913676682487f89f27c756adb827f66Devang Patelbool 69255fd43f90913676682487f89f27c756adb827f66Devang PatelBasicBlockPassManager_New::runOnFunction(Function &F) { 69355fd43f90913676682487f89f27c756adb827f66Devang Patel 6943b14fbe300b96c353a9abfadf481b64324f17375Devang Patel bool Changed = doInitialization(F); 695cbfd29d0da5810949ba66701b91c1b954122077aDevang Patel initializeAnalysisInfo(); 696c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 69755fd43f90913676682487f89f27c756adb827f66Devang Patel for (Function::iterator I = F.begin(), E = F.end(); I != E; ++I) 698e253385b108cd946b1ac150302f246d3b218be77Devang Patel for (std::vector<Pass *>::iterator itr = passVectorBegin(), 699e253385b108cd946b1ac150302f246d3b218be77Devang Patel e = passVectorEnd(); itr != e; ++itr) { 70055fd43f90913676682487f89f27c756adb827f66Devang Patel Pass *P = *itr; 701c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 70255fd43f90913676682487f89f27c756adb827f66Devang Patel BasicBlockPass *BP = dynamic_cast<BasicBlockPass*>(P); 70355fd43f90913676682487f89f27c756adb827f66Devang Patel Changed |= BP->runOnBasicBlock(*I); 704c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel removeNotPreservedAnalysis(P); 7050ac961d9c1c511204abfb02f5c25c92da6b75eb6Devang Patel recordAvailableAnalysis(P); 706df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel removeDeadPasses(P); 70755fd43f90913676682487f89f27c756adb827f66Devang Patel } 7083b14fbe300b96c353a9abfadf481b64324f17375Devang Patel return Changed | doFinalization(F); 70955fd43f90913676682487f89f27c756adb827f66Devang Patel} 71055fd43f90913676682487f89f27c756adb827f66Devang Patel 711964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel// Implement doInitialization and doFinalization 712964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patelinline bool BasicBlockPassManager_New::doInitialization(Module &M) { 713964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel bool Changed = false; 714964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 715964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel for (std::vector<Pass *>::iterator itr = passVectorBegin(), 716964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel e = passVectorEnd(); itr != e; ++itr) { 717964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel Pass *P = *itr; 718964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel BasicBlockPass *BP = dynamic_cast<BasicBlockPass*>(P); 719964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel Changed |= BP->doInitialization(M); 720964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel } 721964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 722964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel return Changed; 723964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel} 724964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 725964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patelinline bool BasicBlockPassManager_New::doFinalization(Module &M) { 726964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel bool Changed = false; 727964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 728964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel for (std::vector<Pass *>::iterator itr = passVectorBegin(), 729964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel e = passVectorEnd(); itr != e; ++itr) { 730964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel Pass *P = *itr; 731964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel BasicBlockPass *BP = dynamic_cast<BasicBlockPass*>(P); 732964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel Changed |= BP->doFinalization(M); 733964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel } 734964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 735964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel return Changed; 736964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel} 737964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 738964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patelinline bool BasicBlockPassManager_New::doInitialization(Function &F) { 739964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel bool Changed = false; 740964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 741964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel for (std::vector<Pass *>::iterator itr = passVectorBegin(), 742964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel e = passVectorEnd(); itr != e; ++itr) { 743964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel Pass *P = *itr; 744964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel BasicBlockPass *BP = dynamic_cast<BasicBlockPass*>(P); 745964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel Changed |= BP->doInitialization(F); 746964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel } 747964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 748964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel return Changed; 749964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel} 750964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 751964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patelinline bool BasicBlockPassManager_New::doFinalization(Function &F) { 752964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel bool Changed = false; 753964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 754964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel for (std::vector<Pass *>::iterator itr = passVectorBegin(), 755964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel e = passVectorEnd(); itr != e; ++itr) { 756964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel Pass *P = *itr; 757964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel BasicBlockPass *BP = dynamic_cast<BasicBlockPass*>(P); 758964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel Changed |= BP->doFinalization(F); 759964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel } 760964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 761964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel return Changed; 762964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel} 763964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 764964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 76506e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel//===----------------------------------------------------------------------===// 766448d27cd795dc273249f123444509403f4fa4facDevang Patel// FunctionPassManager_New implementation 76706e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel 768c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// Create new Function pass manager 769c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang PatelFunctionPassManager_New::FunctionPassManager_New() { 770f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel FPM = new FunctionPassManagerImpl_New(0); 771c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel} 772c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel 773cc132cd9feef765fe70284183c0f997b4faa5483Devang PatelFunctionPassManager_New::FunctionPassManager_New(ModuleProvider *P) { 774cc132cd9feef765fe70284183c0f997b4faa5483Devang Patel FPM = new FunctionPassManagerImpl_New(0); 775cc132cd9feef765fe70284183c0f997b4faa5483Devang Patel MP = P; 776cc132cd9feef765fe70284183c0f997b4faa5483Devang Patel} 777cc132cd9feef765fe70284183c0f997b4faa5483Devang Patel 778c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// add - Add a pass to the queue of passes to run. This passes 779c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// ownership of the Pass to the PassManager. When the 780c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// PassManager_X is destroyed, the pass will be destroyed as well, so 781c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// there is no need to delete the pass. (TODO delete passes.) 782c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// This implies that all passes MUST be allocated with 'new'. 783214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patelvoid FunctionPassManager_New::add(Pass *P) { 784c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel FPM->add(P); 785c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel} 786c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel 787c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// Execute all of the passes scheduled for execution. Keep 788c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// track of whether any of the passes modifies the function, and if 789c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// so, return true. 790214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patelbool FunctionPassManager_New::runOnModule(Module &M) { 791c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel return FPM->runOnModule(M); 792c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel} 793c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel 794214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel/// run - Execute all of the passes scheduled for execution. Keep 795214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel/// track of whether any of the passes modifies the function, and if 796214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel/// so, return true. 797214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel/// 798214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patelbool FunctionPassManager_New::run(Function &F) { 799214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel std::string errstr; 800214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel if (MP->materializeFunction(&F, &errstr)) { 801e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling cerr << "Error reading bytecode file: " << errstr << "\n"; 802214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel abort(); 803214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel } 804c475692c5ee2f9c0c6988b7ec28768ef6690bfb0Devang Patel return FPM->run(F); 805214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel} 806214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel 807214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel 8083799f97d539f6c288d169063e1b335917fafcffbDevang Patel/// doInitialization - Run all of the initializers for the function passes. 8093799f97d539f6c288d169063e1b335917fafcffbDevang Patel/// 8103799f97d539f6c288d169063e1b335917fafcffbDevang Patelbool FunctionPassManager_New::doInitialization() { 8113799f97d539f6c288d169063e1b335917fafcffbDevang Patel return FPM->doInitialization(*MP->getModule()); 8123799f97d539f6c288d169063e1b335917fafcffbDevang Patel} 8133799f97d539f6c288d169063e1b335917fafcffbDevang Patel 8143799f97d539f6c288d169063e1b335917fafcffbDevang Patel/// doFinalization - Run all of the initializers for the function passes. 8153799f97d539f6c288d169063e1b335917fafcffbDevang Patel/// 8163799f97d539f6c288d169063e1b335917fafcffbDevang Patelbool FunctionPassManager_New::doFinalization() { 8173799f97d539f6c288d169063e1b335917fafcffbDevang Patel return FPM->doFinalization(*MP->getModule()); 8183799f97d539f6c288d169063e1b335917fafcffbDevang Patel} 8193799f97d539f6c288d169063e1b335917fafcffbDevang Patel 82006e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel//===----------------------------------------------------------------------===// 821c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel// FunctionPassManagerImpl_New implementation 822448d27cd795dc273249f123444509403f4fa4facDevang Patel 823448d27cd795dc273249f123444509403f4fa4facDevang Patel/// Add pass P into the pass manager queue. If P is a BasicBlockPass then 824448d27cd795dc273249f123444509403f4fa4facDevang Patel/// either use it into active basic block pass manager or create new basic 825448d27cd795dc273249f123444509403f4fa4facDevang Patel/// block pass manager to handle pass P. 826448d27cd795dc273249f123444509403f4fa4facDevang Patelbool 827c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang PatelFunctionPassManagerImpl_New::addPass(Pass *P) { 828448d27cd795dc273249f123444509403f4fa4facDevang Patel 829448d27cd795dc273249f123444509403f4fa4facDevang Patel // If P is a BasicBlockPass then use BasicBlockPassManager_New. 830448d27cd795dc273249f123444509403f4fa4facDevang Patel if (BasicBlockPass *BP = dynamic_cast<BasicBlockPass*>(P)) { 831448d27cd795dc273249f123444509403f4fa4facDevang Patel 832badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel if (!activeBBPassManager || !activeBBPassManager->addPass(BP)) { 833448d27cd795dc273249f123444509403f4fa4facDevang Patel 834badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel // If active manager exists then clear its analysis info. 835badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel if (activeBBPassManager) 836badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel activeBBPassManager->initializeAnalysisInfo(); 837b917e38c84fa9c7c434762a0e587af63eec939e5Devang Patel 838badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel // Create and add new manager 839f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel activeBBPassManager = 840f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel new BasicBlockPassManager_New(getDepth() + 1); 841893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel addPassToManager(activeBBPassManager, false); 842badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel 843badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel // Add pass into new manager. This time it must succeed. 8442c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel if (!activeBBPassManager->addPass(BP)) 8452c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel assert(0 && "Unable to add Pass"); 846448d27cd795dc273249f123444509403f4fa4facDevang Patel } 847e16634065021e36ae31f074f623a636924d6b8d1Devang Patel 848e16634065021e36ae31f074f623a636924d6b8d1Devang Patel if (!ForcedLastUses.empty()) 849e16634065021e36ae31f074f623a636924d6b8d1Devang Patel TPM->setLastUser(ForcedLastUses, this); 850e16634065021e36ae31f074f623a636924d6b8d1Devang Patel 851448d27cd795dc273249f123444509403f4fa4facDevang Patel return true; 852448d27cd795dc273249f123444509403f4fa4facDevang Patel } 853448d27cd795dc273249f123444509403f4fa4facDevang Patel 854448d27cd795dc273249f123444509403f4fa4facDevang Patel FunctionPass *FP = dynamic_cast<FunctionPass *>(P); 855448d27cd795dc273249f123444509403f4fa4facDevang Patel if (!FP) 856448d27cd795dc273249f123444509403f4fa4facDevang Patel return false; 857448d27cd795dc273249f123444509403f4fa4facDevang Patel 85853596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel // If this pass does not preserve anlysis that is used by other passes 85953596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel // managed by this manager than it is not a suiable pass for this manager. 8602c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel if (!manageablePass(P)) 86153596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel return false; 86253596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel 863e253385b108cd946b1ac150302f246d3b218be77Devang Patel addPassToManager (FP); 864badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel 865badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel // If active manager exists then clear its analysis info. 866badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel if (activeBBPassManager) { 867badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel activeBBPassManager->initializeAnalysisInfo(); 868badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel activeBBPassManager = NULL; 869badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel } 870badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel 871448d27cd795dc273249f123444509403f4fa4facDevang Patel return true; 872448d27cd795dc273249f123444509403f4fa4facDevang Patel} 873448d27cd795dc273249f123444509403f4fa4facDevang Patel 874448d27cd795dc273249f123444509403f4fa4facDevang Patel/// Execute all of the passes scheduled for execution by invoking 875448d27cd795dc273249f123444509403f4fa4facDevang Patel/// runOnFunction method. Keep track of whether any of the passes modifies 876448d27cd795dc273249f123444509403f4fa4facDevang Patel/// the function, and if so, return true. 877214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patelbool FunctionPassManagerImpl_New::runOnModule(Module &M) { 878448d27cd795dc273249f123444509403f4fa4facDevang Patel 8794d9a186b10dacf1d702ef32c2638e9016d8f483bDevang Patel bool Changed = doInitialization(M); 880cbfd29d0da5810949ba66701b91c1b954122077aDevang Patel initializeAnalysisInfo(); 881c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 882448d27cd795dc273249f123444509403f4fa4facDevang Patel for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I) 88397856ceeab2297e09c46c2390f7b3d818df6f1f7Devang Patel this->runOnFunction(*I); 88497856ceeab2297e09c46c2390f7b3d818df6f1f7Devang Patel 8854d9a186b10dacf1d702ef32c2638e9016d8f483bDevang Patel return Changed | doFinalization(M); 886448d27cd795dc273249f123444509403f4fa4facDevang Patel} 887448d27cd795dc273249f123444509403f4fa4facDevang Patel 888214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel/// Execute all of the passes scheduled for execution by invoking 889214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel/// runOnFunction method. Keep track of whether any of the passes modifies 890214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel/// the function, and if so, return true. 891214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patelbool FunctionPassManagerImpl_New::runOnFunction(Function &F) { 892214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel 893214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel bool Changed = false; 894cbfd29d0da5810949ba66701b91c1b954122077aDevang Patel initializeAnalysisInfo(); 895214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel 896214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel for (std::vector<Pass *>::iterator itr = passVectorBegin(), 897214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel e = passVectorEnd(); itr != e; ++itr) { 898214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel Pass *P = *itr; 899214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel 900214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel FunctionPass *FP = dynamic_cast<FunctionPass*>(P); 901214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel Changed |= FP->runOnFunction(F); 902214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel removeNotPreservedAnalysis(P); 9030ac961d9c1c511204abfb02f5c25c92da6b75eb6Devang Patel recordAvailableAnalysis(P); 904214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel removeDeadPasses(P); 905214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel } 906214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel return Changed; 907214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel} 908214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel 909214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel 9103799f97d539f6c288d169063e1b335917fafcffbDevang Patelinline bool FunctionPassManagerImpl_New::doInitialization(Module &M) { 9113799f97d539f6c288d169063e1b335917fafcffbDevang Patel bool Changed = false; 9123799f97d539f6c288d169063e1b335917fafcffbDevang Patel 9133799f97d539f6c288d169063e1b335917fafcffbDevang Patel for (std::vector<Pass *>::iterator itr = passVectorBegin(), 9143799f97d539f6c288d169063e1b335917fafcffbDevang Patel e = passVectorEnd(); itr != e; ++itr) { 9153799f97d539f6c288d169063e1b335917fafcffbDevang Patel Pass *P = *itr; 9163799f97d539f6c288d169063e1b335917fafcffbDevang Patel 9173799f97d539f6c288d169063e1b335917fafcffbDevang Patel FunctionPass *FP = dynamic_cast<FunctionPass*>(P); 9183799f97d539f6c288d169063e1b335917fafcffbDevang Patel Changed |= FP->doInitialization(M); 9193799f97d539f6c288d169063e1b335917fafcffbDevang Patel } 9203799f97d539f6c288d169063e1b335917fafcffbDevang Patel 9213799f97d539f6c288d169063e1b335917fafcffbDevang Patel return Changed; 9223799f97d539f6c288d169063e1b335917fafcffbDevang Patel} 9233799f97d539f6c288d169063e1b335917fafcffbDevang Patel 9243799f97d539f6c288d169063e1b335917fafcffbDevang Patelinline bool FunctionPassManagerImpl_New::doFinalization(Module &M) { 9253799f97d539f6c288d169063e1b335917fafcffbDevang Patel bool Changed = false; 9263799f97d539f6c288d169063e1b335917fafcffbDevang Patel 9273799f97d539f6c288d169063e1b335917fafcffbDevang Patel for (std::vector<Pass *>::iterator itr = passVectorBegin(), 9283799f97d539f6c288d169063e1b335917fafcffbDevang Patel e = passVectorEnd(); itr != e; ++itr) { 9293799f97d539f6c288d169063e1b335917fafcffbDevang Patel Pass *P = *itr; 9303799f97d539f6c288d169063e1b335917fafcffbDevang Patel 9313799f97d539f6c288d169063e1b335917fafcffbDevang Patel FunctionPass *FP = dynamic_cast<FunctionPass*>(P); 9323799f97d539f6c288d169063e1b335917fafcffbDevang Patel Changed |= FP->doFinalization(M); 9333799f97d539f6c288d169063e1b335917fafcffbDevang Patel } 9343799f97d539f6c288d169063e1b335917fafcffbDevang Patel 9353799f97d539f6c288d169063e1b335917fafcffbDevang Patel return Changed; 9363799f97d539f6c288d169063e1b335917fafcffbDevang Patel} 9373799f97d539f6c288d169063e1b335917fafcffbDevang Patel 938c475692c5ee2f9c0c6988b7ec28768ef6690bfb0Devang Patel// Execute all the passes managed by this top level manager. 939c475692c5ee2f9c0c6988b7ec28768ef6690bfb0Devang Patel// Return true if any function is modified by a pass. 940c475692c5ee2f9c0c6988b7ec28768ef6690bfb0Devang Patelbool FunctionPassManagerImpl_New::run(Function &F) { 941c475692c5ee2f9c0c6988b7ec28768ef6690bfb0Devang Patel 942c475692c5ee2f9c0c6988b7ec28768ef6690bfb0Devang Patel bool Changed = false; 943c475692c5ee2f9c0c6988b7ec28768ef6690bfb0Devang Patel for (std::vector<Pass *>::iterator I = passManagersBegin(), 944c475692c5ee2f9c0c6988b7ec28768ef6690bfb0Devang Patel E = passManagersEnd(); I != E; ++I) { 945c475692c5ee2f9c0c6988b7ec28768ef6690bfb0Devang Patel FunctionPass *FP = dynamic_cast<FunctionPass *>(*I); 946c475692c5ee2f9c0c6988b7ec28768ef6690bfb0Devang Patel Changed |= FP->runOnFunction(F); 947c475692c5ee2f9c0c6988b7ec28768ef6690bfb0Devang Patel } 948c475692c5ee2f9c0c6988b7ec28768ef6690bfb0Devang Patel return Changed; 949c475692c5ee2f9c0c6988b7ec28768ef6690bfb0Devang Patel} 950c475692c5ee2f9c0c6988b7ec28768ef6690bfb0Devang Patel 95106e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel//===----------------------------------------------------------------------===// 95292c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel// ModulePassManager implementation 95392c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 95492c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel/// Add P into pass vector if it is manageble. If P is a FunctionPass 955c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// then use FunctionPassManagerImpl_New to manage it. Return false if P 95692c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel/// is not manageable by this manager. 95792c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patelbool 9582c5d1851bbcb20adb79664ec16ab1f97b9142086Devang PatelModulePassManager_New::addPass(Pass *P) { 95992c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 96092c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel // If P is FunctionPass then use function pass maanager. 96192c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel if (FunctionPass *FP = dynamic_cast<FunctionPass*>(P)) { 96292c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 96369867b511c732a7fac7301977bd6e880e46439f1Devang Patel if (!activeFunctionPassManager || !activeFunctionPassManager->addPass(P)) { 96492c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 965badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel // If active manager exists then clear its analysis info. 966badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel if (activeFunctionPassManager) 967badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel activeFunctionPassManager->initializeAnalysisInfo(); 968b917e38c84fa9c7c434762a0e587af63eec939e5Devang Patel 969badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel // Create and add new manager 970f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel activeFunctionPassManager = 971f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel new FunctionPassManagerImpl_New(getDepth() + 1); 972893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel addPassToManager(activeFunctionPassManager, false); 973badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel 974badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel // Add pass into new manager. This time it must succeed. 9752c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel if (!activeFunctionPassManager->addPass(FP)) 9762c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel assert(0 && "Unable to add pass"); 97792c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel } 978e16634065021e36ae31f074f623a636924d6b8d1Devang Patel 979e16634065021e36ae31f074f623a636924d6b8d1Devang Patel if (!ForcedLastUses.empty()) 980e16634065021e36ae31f074f623a636924d6b8d1Devang Patel TPM->setLastUser(ForcedLastUses, this); 981e16634065021e36ae31f074f623a636924d6b8d1Devang Patel 98292c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel return true; 98392c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel } 98492c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 98592c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel ModulePass *MP = dynamic_cast<ModulePass *>(P); 98692c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel if (!MP) 98792c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel return false; 98892c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 98953596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel // If this pass does not preserve anlysis that is used by other passes 99053596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel // managed by this manager than it is not a suiable pass for this manager. 9912c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel if (!manageablePass(P)) 99253596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel return false; 99353596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel 994e253385b108cd946b1ac150302f246d3b218be77Devang Patel addPassToManager(MP); 995badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel // If active manager exists then clear its analysis info. 996badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel if (activeFunctionPassManager) { 997badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel activeFunctionPassManager->initializeAnalysisInfo(); 998badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel activeFunctionPassManager = NULL; 999badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel } 1000badc4fae531cc0fdaa8e58f481c3b1d23ea7dd56Devang Patel 100192c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel return true; 100292c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel} 100392c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 100492c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 100592c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel/// Execute all of the passes scheduled for execution by invoking 100692c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel/// runOnModule method. Keep track of whether any of the passes modifies 100792c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel/// the module, and if so, return true. 100892c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patelbool 100992c45eebf77de5d6ee84a3f18f560b83cb68e720Devang PatelModulePassManager_New::runOnModule(Module &M) { 101092c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel bool Changed = false; 1011cbfd29d0da5810949ba66701b91c1b954122077aDevang Patel initializeAnalysisInfo(); 1012c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 1013e253385b108cd946b1ac150302f246d3b218be77Devang Patel for (std::vector<Pass *>::iterator itr = passVectorBegin(), 1014e253385b108cd946b1ac150302f246d3b218be77Devang Patel e = passVectorEnd(); itr != e; ++itr) { 101592c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel Pass *P = *itr; 1016c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 101792c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel ModulePass *MP = dynamic_cast<ModulePass*>(P); 101892c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel Changed |= MP->runOnModule(M); 1019c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel removeNotPreservedAnalysis(P); 10200ac961d9c1c511204abfb02f5c25c92da6b75eb6Devang Patel recordAvailableAnalysis(P); 1021df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel removeDeadPasses(P); 102292c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel } 102392c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel return Changed; 102492c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel} 102592c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 102606e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel//===----------------------------------------------------------------------===// 102706e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel// PassManagerImpl implementation 102806e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel 1029b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel// PassManager_New implementation 1030b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel/// Add P into active pass manager or use new module pass manager to 1031b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel/// manage it. 1032f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patelbool PassManagerImpl_New::addPass(Pass *P) { 1033b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel 1034a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel if (!activeManager || !activeManager->addPass(P)) { 1035f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel activeManager = new ModulePassManager_New(getDepth() + 1); 1036a083e94f7971ddafb817b1bcd86992d9fc4d8f9eDevang Patel addPassManager(activeManager); 1037502f19e0f8ba47b5916a7e9d445f4ee071cdf132Devang Patel return activeManager->addPass(P); 1038b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel } 1039502f19e0f8ba47b5916a7e9d445f4ee071cdf132Devang Patel return true; 1040b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel} 1041b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel 1042b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel/// run - Execute all of the passes scheduled for execution. Keep track of 1043b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel/// whether any of the passes modifies the module, and if so, return true. 1044f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patelbool PassManagerImpl_New::run(Module &M) { 1045b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel 1046b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel bool Changed = false; 1047a083e94f7971ddafb817b1bcd86992d9fc4d8f9eDevang Patel for (std::vector<Pass *>::iterator I = passManagersBegin(), 1048a083e94f7971ddafb817b1bcd86992d9fc4d8f9eDevang Patel E = passManagersEnd(); I != E; ++I) { 1049a083e94f7971ddafb817b1bcd86992d9fc4d8f9eDevang Patel ModulePassManager_New *MP = dynamic_cast<ModulePassManager_New *>(*I); 1050a083e94f7971ddafb817b1bcd86992d9fc4d8f9eDevang Patel Changed |= MP->runOnModule(M); 1051b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel } 1052b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel return Changed; 1053b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel} 10545a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 105506e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel//===----------------------------------------------------------------------===// 105606e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel// PassManager implementation 105706e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel 10585a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// Create new pass manager 10595a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang PatelPassManager_New::PassManager_New() { 1060f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel PM = new PassManagerImpl_New(0); 10615a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel} 10625a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 10635a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// add - Add a pass to the queue of passes to run. This passes ownership of 10645a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// the Pass to the PassManager. When the PassManager is destroyed, the pass 10655a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// will be destroyed as well, so there is no need to delete the pass. This 10665a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// implies that all passes MUST be allocated with 'new'. 10675a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patelvoid 10685a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang PatelPassManager_New::add(Pass *P) { 10695a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel PM->add(P); 10705a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel} 10715a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 10725a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// run - Execute all of the passes scheduled for execution. Keep track of 10735a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// whether any of the passes modifies the module, and if so, return true. 10745a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patelbool 10755a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang PatelPassManager_New::run(Module &M) { 10765a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel return PM->run(M); 10775a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel} 10785a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 1079