PassManager.cpp revision 06e86561a5261a59f5c391d5cc5cb4aa38dca83c
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. 1093f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel void schedulePass(Pass *P, Pass *PM); 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 1213f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel virtual ~PMTopLevelManager() { 1223f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel PassManagers.clear(); 1233f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel } 1243f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel 1253f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patelprivate: 1263f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel 1273f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel /// Collection of pass managers 1283f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel std::vector<Pass *> PassManagers; 1293f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel 1303f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel // Map to keep track of last user of the analysis pass. 1313f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel // LastUser->second is the last user of Lastuser->first. 1323f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel std::map<Pass *, Pass *> LastUser; 1333f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel}; 1343f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel 1353f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel/// Set pass P as the last user of the given analysis passes. 1363f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patelvoid PMTopLevelManager::setLastUser(std::vector<Pass *> &AnalysisPasses, 1373f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel Pass *P) { 1383f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel 1393f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel for (std::vector<Pass *>::iterator I = AnalysisPasses.begin(), 1403f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel E = AnalysisPasses.end(); I != E; ++I) { 1413f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel Pass *AP = *I; 1423f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel LastUser[AP] = P; 1433f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel // If AP is the last user of other passes then make P last user of 1443f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel // such passes. 1453f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel for (std::map<Pass *, Pass *>::iterator LUI = LastUser.begin(), 1463f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel LUE = LastUser.end(); LUI != LUE; ++LUI) { 1473f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel if (LUI->second == AP) 1483f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel LastUser[LUI->first] = P; 1493f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel } 1503f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel } 1513f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel 1523f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel} 1533f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel 1543f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel/// Collect passes whose last user is P 1553f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patelvoid PMTopLevelManager::collectLastUses(std::vector<Pass *> &LastUses, 1563f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel Pass *P) { 1573f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel for (std::map<Pass *, Pass *>::iterator LUI = LastUser.begin(), 1583f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel LUE = LastUser.end(); LUI != LUE; ++LUI) 1593f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel if (LUI->second == P) 1603f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel LastUses.push_back(LUI->first); 1613f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel} 1623f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel 1633f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel 1643f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel 165419f0e95d698109541ad730cb45ba4caca78f458Devang Patel/// PMDataManager provides the common place to manage the analysis data 166419f0e95d698109541ad730cb45ba4caca78f458Devang Patel/// used by pass managers. 167419f0e95d698109541ad730cb45ba4caca78f458Devang Patelclass PMDataManager { 16885d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 16985d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patelpublic: 17085d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 17185d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel /// Return true IFF pass P's required analysis set does not required new 17285d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel /// manager. 17385d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel bool manageablePass(Pass *P); 17485d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 175b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel Pass *getAnalysisPass(AnalysisID AID) const { 176b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel 177b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel std::map<AnalysisID, Pass*>::const_iterator I = 178b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel AvailableAnalysis.find(AID); 179b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel 180b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel if (I != AvailableAnalysis.end()) 181b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel return NULL; 182b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel else 183b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel return I->second; 184be6d515f481756ff549f355e32be1ac398e141d5Devang Patel } 18585d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 18685d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel /// Augment AvailableAnalysis by adding analysis made available by pass P. 187f32b4dd13e421b3ad4696f984cb2043ce64e19cbDevang Patel void recordAvailableAnalysis(Pass *P); 18885d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 18985d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel /// Remove Analysis that is not preserved by the pass 19085d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel void removeNotPreservedAnalysis(Pass *P); 19185d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 19285d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel /// Remove dead passes 193df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel void removeDeadPasses(Pass *P); 19485d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 1954045af1175509c81d6a4708df233f0b1abe888fcDevang Patel /// Add pass P into the PassVector. Update 196893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel /// AvailableAnalysis appropriately if ProcessAnalysis is true. 197893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel void addPassToManager (Pass *P, bool ProcessAnalysis = true); 198e253385b108cd946b1ac150302f246d3b218be77Devang Patel 199cbfd29d0da5810949ba66701b91c1b954122077aDevang Patel // Initialize available analysis information. 200cbfd29d0da5810949ba66701b91c1b954122077aDevang Patel void initializeAnalysisInfo() { 201c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel AvailableAnalysis.clear(); 20203153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel LastUser.clear(); 203c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel } 204c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 205b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel // All Required analyses should be available to the pass as it runs! Here 206b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel // we fill in the AnalysisImpls member of the pass so that it can 207b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel // successfully use the getAnalysis() method to retrieve the 208b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel // implementations it needs. 209b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel // 2102f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel void initializeAnalysisImpl(Pass *P); 211b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel 212e253385b108cd946b1ac150302f246d3b218be77Devang Patel inline std::vector<Pass *>::iterator passVectorBegin() { 213e253385b108cd946b1ac150302f246d3b218be77Devang Patel return PassVector.begin(); 214e253385b108cd946b1ac150302f246d3b218be77Devang Patel } 215e253385b108cd946b1ac150302f246d3b218be77Devang Patel 216e253385b108cd946b1ac150302f246d3b218be77Devang Patel inline std::vector<Pass *>::iterator passVectorEnd() { 217e253385b108cd946b1ac150302f246d3b218be77Devang Patel return PassVector.end(); 218e253385b108cd946b1ac150302f246d3b218be77Devang Patel } 219e253385b108cd946b1ac150302f246d3b218be77Devang Patel 220861967815396df9f8b01327197fd2715d2c7555cDevang Patel inline void setLastUser(Pass *P, Pass *LU) { 2212f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel LastUser[P] = LU; 2222f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel // TODO : Check if pass P is available. 2232f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel } 22403153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel 22585d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patelprivate: 2265770c7cd52d6a3dfd9a5815cc9153d94afc6dd31Devang Patel // Set of available Analysis. This information is used while scheduling 2275770c7cd52d6a3dfd9a5815cc9153d94afc6dd31Devang Patel // pass. If a pass requires an analysis which is not not available then 2285770c7cd52d6a3dfd9a5815cc9153d94afc6dd31Devang Patel // equired analysis pass is scheduled to run before the pass itself is 2295770c7cd52d6a3dfd9a5815cc9153d94afc6dd31Devang Patel // scheduled to run. 230b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel std::map<AnalysisID, Pass*> AvailableAnalysis; 231e253385b108cd946b1ac150302f246d3b218be77Devang Patel 23203153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel // Map to keep track of last user of the analysis pass. 23303153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel // LastUser->second is the last user of Lastuser->first. 23403153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel std::map<Pass *, Pass *> LastUser; 23503153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel 236e253385b108cd946b1ac150302f246d3b218be77Devang Patel // Collection of pass that are managed by this manager 237e253385b108cd946b1ac150302f246d3b218be77Devang Patel std::vector<Pass *> PassVector; 23885d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel}; 23985d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 240c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// BasicBlockPassManager_New manages BasicBlockPass. It batches all the 241c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// pass together and sequence them to process one basic block before 242c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// processing next basic block. 243419f0e95d698109541ad730cb45ba4caca78f458Devang Patelclass BasicBlockPassManager_New : public PMDataManager, 244abb81054d1ac57014774b092ce3094c47effbddbDevang Patel public FunctionPass { 245c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 246c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelpublic: 247c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel BasicBlockPassManager_New() { } 248c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 249c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// Add a pass into a passmanager queue. 250c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel bool addPass(Pass *p); 251c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 252c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// Execute all of the passes scheduled for execution. Keep track of 253c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// whether any of the passes modifies the function, and if so, return true. 254c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel bool runOnFunction(Function &F); 255c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 256be6d515f481756ff549f355e32be1ac398e141d5Devang Patel /// Return true IFF AnalysisID AID is currently available. 25703153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel Pass *getAnalysisPassFromManager(AnalysisID AID); 258be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 259c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelprivate: 260c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel}; 261c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 262c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// FunctionPassManagerImpl_New manages FunctionPasses and BasicBlockPassManagers. 263c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// It batches all function passes and basic block pass managers together and 264c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// sequence them to process one function at a time before processing next 265c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// function. 266419f0e95d698109541ad730cb45ba4caca78f458Devang Patelclass FunctionPassManagerImpl_New : public PMDataManager, 267abb81054d1ac57014774b092ce3094c47effbddbDevang Patel public ModulePass { 268c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelpublic: 269c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel FunctionPassManagerImpl_New(ModuleProvider *P) { /* TODO */ } 270c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel FunctionPassManagerImpl_New() { 271c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel activeBBPassManager = NULL; 272c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel } 273c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel ~FunctionPassManagerImpl_New() { /* TODO */ }; 274c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 275c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// add - Add a pass to the queue of passes to run. This passes 276c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// ownership of the Pass to the PassManager. When the 277c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// PassManager_X is destroyed, the pass will be destroyed as well, so 278c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// there is no need to delete the pass. (TODO delete passes.) 279c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// This implies that all passes MUST be allocated with 'new'. 280c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel void add(Pass *P) { /* TODO*/ } 281c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 282c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// Add pass into the pass manager queue. 283c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel bool addPass(Pass *P); 284c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 285c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// Execute all of the passes scheduled for execution. Keep 286c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// track of whether any of the passes modifies the function, and if 287c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// so, return true. 288c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel bool runOnModule(Module &M); 289214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel bool runOnFunction(Function &F); 290c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 291be6d515f481756ff549f355e32be1ac398e141d5Devang Patel /// Return true IFF AnalysisID AID is currently available. 29203153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel Pass *getAnalysisPassFromManager(AnalysisID AID); 293be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 2943799f97d539f6c288d169063e1b335917fafcffbDevang Patel /// doInitialization - Run all of the initializers for the function passes. 2953799f97d539f6c288d169063e1b335917fafcffbDevang Patel /// 2963799f97d539f6c288d169063e1b335917fafcffbDevang Patel bool doInitialization(Module &M); 2973799f97d539f6c288d169063e1b335917fafcffbDevang Patel 2983799f97d539f6c288d169063e1b335917fafcffbDevang Patel /// doFinalization - Run all of the initializers for the function passes. 2993799f97d539f6c288d169063e1b335917fafcffbDevang Patel /// 3003799f97d539f6c288d169063e1b335917fafcffbDevang Patel bool doFinalization(Module &M); 301c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelprivate: 302c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel // Active Pass Managers 303c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel BasicBlockPassManager_New *activeBBPassManager; 304c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel}; 305c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 306c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// ModulePassManager_New manages ModulePasses and function pass managers. 307c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// It batches all Module passes passes and function pass managers together and 308c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// sequence them to process one module. 309419f0e95d698109541ad730cb45ba4caca78f458Devang Patelclass ModulePassManager_New : public PMDataManager { 310c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 311c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelpublic: 312c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel ModulePassManager_New() { activeFunctionPassManager = NULL; } 313c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 314c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// Add a pass into a passmanager queue. 315c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel bool addPass(Pass *p); 316c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 317c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// run - Execute all of the passes scheduled for execution. Keep track of 318c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// whether any of the passes modifies the module, and if so, return true. 319c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel bool runOnModule(Module &M); 320be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 321be6d515f481756ff549f355e32be1ac398e141d5Devang Patel /// Return true IFF AnalysisID AID is currently available. 32203153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel Pass *getAnalysisPassFromManager(AnalysisID AID); 323c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 324c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelprivate: 325c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel // Active Pass Manager 326c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel FunctionPassManagerImpl_New *activeFunctionPassManager; 327c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel}; 328c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 3295a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// PassManager_New manages ModulePassManagers 330419f0e95d698109541ad730cb45ba4caca78f458Devang Patelclass PassManagerImpl_New : public PMDataManager { 3315a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 3325a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patelpublic: 3335a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 3345a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// add - Add a pass to the queue of passes to run. This passes ownership of 3355a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// the Pass to the PassManager. When the PassManager is destroyed, the pass 3365a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// will be destroyed as well, so there is no need to delete the pass. This 3375a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// implies that all passes MUST be allocated with 'new'. 3385a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel void add(Pass *P); 3395a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 3405a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// run - Execute all of the passes scheduled for execution. Keep track of 3415a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// whether any of the passes modifies the module, and if so, return true. 3425a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel bool run(Module &M); 3435a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 344be6d515f481756ff549f355e32be1ac398e141d5Devang Patel /// Return true IFF AnalysisID AID is currently available. 34503153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel Pass *getAnalysisPassFromManager(AnalysisID AID); 346be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 3475a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patelprivate: 3485a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 3495a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// Add a pass into a passmanager queue. This is used by schedulePasses 3505a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel bool addPass(Pass *p); 3515a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 352f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel /// Schedule pass P for execution. Make sure that passes required by 353f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel /// P are run before P is run. Update analysis info maintained by 354f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel /// the manager. Remove dead passes. This is a recursive function. 355f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel void schedulePass(Pass *P); 356f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel 3575a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// Schedule all passes collected in pass queue using add(). Add all the 3585a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// schedule passes into various manager's queue using addPass(). 3595a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel void schedulePasses(); 3605a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 3615a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel // Collection of pass managers 3625a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel std::vector<ModulePassManager_New *> PassManagers; 3635a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 3645a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel // Active Pass Manager 3655a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel ModulePassManager_New *activeManager; 3665a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel}; 3675a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 368c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel} // End of llvm namespace 369c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 37006e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel//===----------------------------------------------------------------------===// 371419f0e95d698109541ad730cb45ba4caca78f458Devang Patel// PMDataManager implementation 372889739c4d188d28c167644bced9df0f3131317d7Devang Patel 3732c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel/// Return true IFF pass P's required analysis set does not required new 374889739c4d188d28c167644bced9df0f3131317d7Devang Patel/// manager. 375419f0e95d698109541ad730cb45ba4caca78f458Devang Patelbool PMDataManager::manageablePass(Pass *P) { 376889739c4d188d28c167644bced9df0f3131317d7Devang Patel 3774045af1175509c81d6a4708df233f0b1abe888fcDevang Patel // TODO 3784045af1175509c81d6a4708df233f0b1abe888fcDevang Patel // If this pass is not preserving information that is required by a 3794045af1175509c81d6a4708df233f0b1abe888fcDevang Patel // pass maintained by higher level pass manager then do not insert 3804045af1175509c81d6a4708df233f0b1abe888fcDevang Patel // this pass into current manager. Use new manager. For example, 3814045af1175509c81d6a4708df233f0b1abe888fcDevang Patel // For example, If FunctionPass F is not preserving ModulePass Info M1 3824045af1175509c81d6a4708df233f0b1abe888fcDevang Patel // that is used by another ModulePass M2 then do not insert F in 3834045af1175509c81d6a4708df233f0b1abe888fcDevang Patel // current function pass manager. 384889739c4d188d28c167644bced9df0f3131317d7Devang Patel return true; 385889739c4d188d28c167644bced9df0f3131317d7Devang Patel} 386889739c4d188d28c167644bced9df0f3131317d7Devang Patel 387b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel/// Augement AvailableAnalysis by adding analysis made available by pass P. 388f32b4dd13e421b3ad4696f984cb2043ce64e19cbDevang Patelvoid PMDataManager::recordAvailableAnalysis(Pass *P) { 389b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel 390b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel if (const PassInfo *PI = P->getPassInfo()) { 391b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel AvailableAnalysis[PI] = P; 392b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel 393f32b4dd13e421b3ad4696f984cb2043ce64e19cbDevang Patel //This pass is the current implementation of all of the interfaces it 394f32b4dd13e421b3ad4696f984cb2043ce64e19cbDevang Patel //implements as well. 395f32b4dd13e421b3ad4696f984cb2043ce64e19cbDevang Patel const std::vector<const PassInfo*> &II = PI->getInterfacesImplemented(); 396f32b4dd13e421b3ad4696f984cb2043ce64e19cbDevang Patel for (unsigned i = 0, e = II.size(); i != e; ++i) 397f32b4dd13e421b3ad4696f984cb2043ce64e19cbDevang Patel AvailableAnalysis[II[i]] = P; 398b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel } 399b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel} 400b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel 401889739c4d188d28c167644bced9df0f3131317d7Devang Patel/// Remove Analyss not preserved by Pass P 402419f0e95d698109541ad730cb45ba4caca78f458Devang Patelvoid PMDataManager::removeNotPreservedAnalysis(Pass *P) { 40314d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel AnalysisUsage AnUsage; 40414d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel P->getAnalysisUsage(AnUsage); 40514d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel const std::vector<AnalysisID> &PreservedSet = AnUsage.getPreservedSet(); 40614d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel 407b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel for (std::map<AnalysisID, Pass*>::iterator I = AvailableAnalysis.begin(), 40814d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel E = AvailableAnalysis.end(); I != E; ++I ) { 409b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel if (std::find(PreservedSet.begin(), PreservedSet.end(), I->first) == 41014d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel PreservedSet.end()) { 41114d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel // Remove this analysis 412b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel std::map<AnalysisID, Pass*>::iterator J = I++; 41314d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel AvailableAnalysis.erase(J); 41414d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel } 41514d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel } 416889739c4d188d28c167644bced9df0f3131317d7Devang Patel} 417889739c4d188d28c167644bced9df0f3131317d7Devang Patel 418df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel/// Remove analysis passes that are not used any longer 419419f0e95d698109541ad730cb45ba4caca78f458Devang Patelvoid PMDataManager::removeDeadPasses(Pass *P) { 420df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel 421df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel for (std::map<Pass *, Pass *>::iterator I = LastUser.begin(), 422df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel E = LastUser.end(); I !=E; ++I) { 423df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel if (I->second == P) { 424df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel Pass *deadPass = I->first; 425df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel deadPass->releaseMemory(); 426df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel 427df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel std::map<AnalysisID, Pass*>::iterator Pos = 428df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel AvailableAnalysis.find(deadPass->getPassInfo()); 429df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel 430df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel assert (Pos != AvailableAnalysis.end() && 431df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel "Pass is not available"); 432df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel AvailableAnalysis.erase(Pos); 433df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel } 434df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel } 435df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel} 436df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel 4374045af1175509c81d6a4708df233f0b1abe888fcDevang Patel/// Add pass P into the PassVector. Update 438893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel/// AvailableAnalysis appropriately if ProcessAnalysis is true. 439419f0e95d698109541ad730cb45ba4caca78f458Devang Patelvoid PMDataManager::addPassToManager (Pass *P, 440893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel bool ProcessAnalysis) { 441e253385b108cd946b1ac150302f246d3b218be77Devang Patel 442893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel if (ProcessAnalysis) { 443893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel // Take a note of analysis required and made available by this pass 4444045af1175509c81d6a4708df233f0b1abe888fcDevang Patel initializeAnalysisImpl(P); 445f32b4dd13e421b3ad4696f984cb2043ce64e19cbDevang Patel recordAvailableAnalysis(P); 446893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel 447893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel // Remove the analysis not preserved by this pass 448893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel removeNotPreservedAnalysis(P); 449893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel } 450e253385b108cd946b1ac150302f246d3b218be77Devang Patel 451e253385b108cd946b1ac150302f246d3b218be77Devang Patel // Add pass 452e253385b108cd946b1ac150302f246d3b218be77Devang Patel PassVector.push_back(P); 453e253385b108cd946b1ac150302f246d3b218be77Devang Patel} 454e253385b108cd946b1ac150302f246d3b218be77Devang Patel 4552f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel// All Required analyses should be available to the pass as it runs! Here 4562f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel// we fill in the AnalysisImpls member of the pass so that it can 4572f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel// successfully use the getAnalysis() method to retrieve the 4582f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel// implementations it needs. 4592f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel// 460419f0e95d698109541ad730cb45ba4caca78f458Devang Patelvoid PMDataManager::initializeAnalysisImpl(Pass *P) { 4613799f97d539f6c288d169063e1b335917fafcffbDevang Patel AnalysisUsage AnUsage; 4623799f97d539f6c288d169063e1b335917fafcffbDevang Patel P->getAnalysisUsage(AnUsage); 4632f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel 4642f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel for (std::vector<const PassInfo *>::const_iterator 4652f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel I = AnUsage.getRequiredSet().begin(), 4662f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel E = AnUsage.getRequiredSet().end(); I != E; ++I) { 4672f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel Pass *Impl = getAnalysisPass(*I); 4682f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel if (Impl == 0) 4692f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel assert(0 && "Analysis used but not available!"); 4702f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel // TODO: P->AnalysisImpls.push_back(std::make_pair(*I, Impl)); 4712f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel } 4722f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel} 4732f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel 47406e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel//===----------------------------------------------------------------------===// 47506e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel// BasicBlockPassManager_New implementation 47655fd43f90913676682487f89f27c756adb827f66Devang Patel 4772c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel/// Add pass P into PassVector and return true. If this pass is not 4782c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel/// manageable by this manager then return false. 47955fd43f90913676682487f89f27c756adb827f66Devang Patelbool 4802c5d1851bbcb20adb79664ec16ab1f97b9142086Devang PatelBasicBlockPassManager_New::addPass(Pass *P) { 48155fd43f90913676682487f89f27c756adb827f66Devang Patel 48255fd43f90913676682487f89f27c756adb827f66Devang Patel BasicBlockPass *BP = dynamic_cast<BasicBlockPass*>(P); 48355fd43f90913676682487f89f27c756adb827f66Devang Patel if (!BP) 48455fd43f90913676682487f89f27c756adb827f66Devang Patel return false; 48555fd43f90913676682487f89f27c756adb827f66Devang Patel 48653596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel // If this pass does not preserve anlysis that is used by other passes 48753596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel // managed by this manager than it is not a suiable pass for this manager. 4882c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel if (!manageablePass(P)) 48953596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel return false; 49053596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel 491e253385b108cd946b1ac150302f246d3b218be77Devang Patel addPassToManager (BP); 49214d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel 49355fd43f90913676682487f89f27c756adb827f66Devang Patel return true; 49455fd43f90913676682487f89f27c756adb827f66Devang Patel} 49555fd43f90913676682487f89f27c756adb827f66Devang Patel 49655fd43f90913676682487f89f27c756adb827f66Devang Patel/// Execute all of the passes scheduled for execution by invoking 49755fd43f90913676682487f89f27c756adb827f66Devang Patel/// runOnBasicBlock method. Keep track of whether any of the passes modifies 49855fd43f90913676682487f89f27c756adb827f66Devang Patel/// the function, and if so, return true. 49955fd43f90913676682487f89f27c756adb827f66Devang Patelbool 50055fd43f90913676682487f89f27c756adb827f66Devang PatelBasicBlockPassManager_New::runOnFunction(Function &F) { 50155fd43f90913676682487f89f27c756adb827f66Devang Patel 50255fd43f90913676682487f89f27c756adb827f66Devang Patel bool Changed = false; 503cbfd29d0da5810949ba66701b91c1b954122077aDevang Patel initializeAnalysisInfo(); 504c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 50555fd43f90913676682487f89f27c756adb827f66Devang Patel for (Function::iterator I = F.begin(), E = F.end(); I != E; ++I) 506e253385b108cd946b1ac150302f246d3b218be77Devang Patel for (std::vector<Pass *>::iterator itr = passVectorBegin(), 507e253385b108cd946b1ac150302f246d3b218be77Devang Patel e = passVectorEnd(); itr != e; ++itr) { 50855fd43f90913676682487f89f27c756adb827f66Devang Patel Pass *P = *itr; 509c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 510f32b4dd13e421b3ad4696f984cb2043ce64e19cbDevang Patel recordAvailableAnalysis(P); 51155fd43f90913676682487f89f27c756adb827f66Devang Patel BasicBlockPass *BP = dynamic_cast<BasicBlockPass*>(P); 51255fd43f90913676682487f89f27c756adb827f66Devang Patel Changed |= BP->runOnBasicBlock(*I); 513c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel removeNotPreservedAnalysis(P); 514df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel removeDeadPasses(P); 51555fd43f90913676682487f89f27c756adb827f66Devang Patel } 51655fd43f90913676682487f89f27c756adb827f66Devang Patel return Changed; 51755fd43f90913676682487f89f27c756adb827f66Devang Patel} 51855fd43f90913676682487f89f27c756adb827f66Devang Patel 519be6d515f481756ff549f355e32be1ac398e141d5Devang Patel/// Return true IFF AnalysisID AID is currently available. 52003153c70de080e4c184ad29f0d78e456019b9a4cDevang PatelPass * BasicBlockPassManager_New::getAnalysisPassFromManager(AnalysisID AID) { 52103153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel return getAnalysisPass(AID); 522be6d515f481756ff549f355e32be1ac398e141d5Devang Patel} 523be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 52406e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel//===----------------------------------------------------------------------===// 525448d27cd795dc273249f123444509403f4fa4facDevang Patel// FunctionPassManager_New implementation 52606e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel 527c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// Create new Function pass manager 528c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang PatelFunctionPassManager_New::FunctionPassManager_New() { 529c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel FPM = new FunctionPassManagerImpl_New(); 530c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel} 531c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel 532c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// add - Add a pass to the queue of passes to run. This passes 533c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// ownership of the Pass to the PassManager. When the 534c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// PassManager_X is destroyed, the pass will be destroyed as well, so 535c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// there is no need to delete the pass. (TODO delete passes.) 536c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// This implies that all passes MUST be allocated with 'new'. 537214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patelvoid FunctionPassManager_New::add(Pass *P) { 538c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel FPM->add(P); 539c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel} 540c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel 541c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// Execute all of the passes scheduled for execution. Keep 542c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// track of whether any of the passes modifies the function, and if 543c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// so, return true. 544214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patelbool FunctionPassManager_New::runOnModule(Module &M) { 545c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel return FPM->runOnModule(M); 546c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel} 547c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel 548214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel/// run - Execute all of the passes scheduled for execution. Keep 549214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel/// track of whether any of the passes modifies the function, and if 550214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel/// so, return true. 551214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel/// 552214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patelbool FunctionPassManager_New::run(Function &F) { 553214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel std::string errstr; 554214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel if (MP->materializeFunction(&F, &errstr)) { 555e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling cerr << "Error reading bytecode file: " << errstr << "\n"; 556214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel abort(); 557214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel } 558214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel return FPM->runOnFunction(F); 559214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel} 560214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel 561214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel 5623799f97d539f6c288d169063e1b335917fafcffbDevang Patel/// doInitialization - Run all of the initializers for the function passes. 5633799f97d539f6c288d169063e1b335917fafcffbDevang Patel/// 5643799f97d539f6c288d169063e1b335917fafcffbDevang Patelbool FunctionPassManager_New::doInitialization() { 5653799f97d539f6c288d169063e1b335917fafcffbDevang Patel return FPM->doInitialization(*MP->getModule()); 5663799f97d539f6c288d169063e1b335917fafcffbDevang Patel} 5673799f97d539f6c288d169063e1b335917fafcffbDevang Patel 5683799f97d539f6c288d169063e1b335917fafcffbDevang Patel/// doFinalization - Run all of the initializers for the function passes. 5693799f97d539f6c288d169063e1b335917fafcffbDevang Patel/// 5703799f97d539f6c288d169063e1b335917fafcffbDevang Patelbool FunctionPassManager_New::doFinalization() { 5713799f97d539f6c288d169063e1b335917fafcffbDevang Patel return FPM->doFinalization(*MP->getModule()); 5723799f97d539f6c288d169063e1b335917fafcffbDevang Patel} 5733799f97d539f6c288d169063e1b335917fafcffbDevang Patel 57406e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel//===----------------------------------------------------------------------===// 575c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel// FunctionPassManagerImpl_New implementation 576448d27cd795dc273249f123444509403f4fa4facDevang Patel 577448d27cd795dc273249f123444509403f4fa4facDevang Patel/// Add pass P into the pass manager queue. If P is a BasicBlockPass then 578448d27cd795dc273249f123444509403f4fa4facDevang Patel/// either use it into active basic block pass manager or create new basic 579448d27cd795dc273249f123444509403f4fa4facDevang Patel/// block pass manager to handle pass P. 580448d27cd795dc273249f123444509403f4fa4facDevang Patelbool 581c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang PatelFunctionPassManagerImpl_New::addPass(Pass *P) { 582448d27cd795dc273249f123444509403f4fa4facDevang Patel 583448d27cd795dc273249f123444509403f4fa4facDevang Patel // If P is a BasicBlockPass then use BasicBlockPassManager_New. 584448d27cd795dc273249f123444509403f4fa4facDevang Patel if (BasicBlockPass *BP = dynamic_cast<BasicBlockPass*>(P)) { 585448d27cd795dc273249f123444509403f4fa4facDevang Patel 586448d27cd795dc273249f123444509403f4fa4facDevang Patel if (!activeBBPassManager 587448d27cd795dc273249f123444509403f4fa4facDevang Patel || !activeBBPassManager->addPass(BP)) { 588448d27cd795dc273249f123444509403f4fa4facDevang Patel 589448d27cd795dc273249f123444509403f4fa4facDevang Patel activeBBPassManager = new BasicBlockPassManager_New(); 590893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel addPassToManager(activeBBPassManager, false); 5912c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel if (!activeBBPassManager->addPass(BP)) 5922c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel assert(0 && "Unable to add Pass"); 593448d27cd795dc273249f123444509403f4fa4facDevang Patel } 594448d27cd795dc273249f123444509403f4fa4facDevang Patel return true; 595448d27cd795dc273249f123444509403f4fa4facDevang Patel } 596448d27cd795dc273249f123444509403f4fa4facDevang Patel 597448d27cd795dc273249f123444509403f4fa4facDevang Patel FunctionPass *FP = dynamic_cast<FunctionPass *>(P); 598448d27cd795dc273249f123444509403f4fa4facDevang Patel if (!FP) 599448d27cd795dc273249f123444509403f4fa4facDevang Patel return false; 600448d27cd795dc273249f123444509403f4fa4facDevang Patel 60153596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel // If this pass does not preserve anlysis that is used by other passes 60253596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel // managed by this manager than it is not a suiable pass for this manager. 6032c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel if (!manageablePass(P)) 60453596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel return false; 60553596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel 606e253385b108cd946b1ac150302f246d3b218be77Devang Patel addPassToManager (FP); 607448d27cd795dc273249f123444509403f4fa4facDevang Patel activeBBPassManager = NULL; 608448d27cd795dc273249f123444509403f4fa4facDevang Patel return true; 609448d27cd795dc273249f123444509403f4fa4facDevang Patel} 610448d27cd795dc273249f123444509403f4fa4facDevang Patel 611448d27cd795dc273249f123444509403f4fa4facDevang Patel/// Execute all of the passes scheduled for execution by invoking 612448d27cd795dc273249f123444509403f4fa4facDevang Patel/// runOnFunction method. Keep track of whether any of the passes modifies 613448d27cd795dc273249f123444509403f4fa4facDevang Patel/// the function, and if so, return true. 614214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patelbool FunctionPassManagerImpl_New::runOnModule(Module &M) { 615448d27cd795dc273249f123444509403f4fa4facDevang Patel 616448d27cd795dc273249f123444509403f4fa4facDevang Patel bool Changed = false; 617cbfd29d0da5810949ba66701b91c1b954122077aDevang Patel initializeAnalysisInfo(); 618c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 619448d27cd795dc273249f123444509403f4fa4facDevang Patel for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I) 620e253385b108cd946b1ac150302f246d3b218be77Devang Patel for (std::vector<Pass *>::iterator itr = passVectorBegin(), 621e253385b108cd946b1ac150302f246d3b218be77Devang Patel e = passVectorEnd(); itr != e; ++itr) { 622448d27cd795dc273249f123444509403f4fa4facDevang Patel Pass *P = *itr; 623c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 624f32b4dd13e421b3ad4696f984cb2043ce64e19cbDevang Patel recordAvailableAnalysis(P); 625448d27cd795dc273249f123444509403f4fa4facDevang Patel FunctionPass *FP = dynamic_cast<FunctionPass*>(P); 626448d27cd795dc273249f123444509403f4fa4facDevang Patel Changed |= FP->runOnFunction(*I); 627c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel removeNotPreservedAnalysis(P); 628df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel removeDeadPasses(P); 629448d27cd795dc273249f123444509403f4fa4facDevang Patel } 630448d27cd795dc273249f123444509403f4fa4facDevang Patel return Changed; 631448d27cd795dc273249f123444509403f4fa4facDevang Patel} 632448d27cd795dc273249f123444509403f4fa4facDevang Patel 633214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel/// Execute all of the passes scheduled for execution by invoking 634214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel/// runOnFunction method. Keep track of whether any of the passes modifies 635214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel/// the function, and if so, return true. 636214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patelbool FunctionPassManagerImpl_New::runOnFunction(Function &F) { 637214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel 638214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel bool Changed = false; 639cbfd29d0da5810949ba66701b91c1b954122077aDevang Patel initializeAnalysisInfo(); 640214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel 641214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel for (std::vector<Pass *>::iterator itr = passVectorBegin(), 642214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel e = passVectorEnd(); itr != e; ++itr) { 643214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel Pass *P = *itr; 644214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel 645f32b4dd13e421b3ad4696f984cb2043ce64e19cbDevang Patel recordAvailableAnalysis(P); 646214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel FunctionPass *FP = dynamic_cast<FunctionPass*>(P); 647214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel Changed |= FP->runOnFunction(F); 648214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel removeNotPreservedAnalysis(P); 649214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel removeDeadPasses(P); 650214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel } 651214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel return Changed; 652214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel} 653214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel 654214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel 655be6d515f481756ff549f355e32be1ac398e141d5Devang Patel/// Return true IFF AnalysisID AID is currently available. 65603153c70de080e4c184ad29f0d78e456019b9a4cDevang PatelPass *FunctionPassManagerImpl_New::getAnalysisPassFromManager(AnalysisID AID) { 657be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 65803153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel Pass *P = getAnalysisPass(AID); 65903153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel if (P) 66003153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel return P; 661be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 662be6d515f481756ff549f355e32be1ac398e141d5Devang Patel if (activeBBPassManager && 663b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel activeBBPassManager->getAnalysisPass(AID) != 0) 66403153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel return activeBBPassManager->getAnalysisPass(AID); 665be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 666be6d515f481756ff549f355e32be1ac398e141d5Devang Patel // TODO : Check inactive managers 66703153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel return NULL; 668be6d515f481756ff549f355e32be1ac398e141d5Devang Patel} 669448d27cd795dc273249f123444509403f4fa4facDevang Patel 6703799f97d539f6c288d169063e1b335917fafcffbDevang Patelinline bool FunctionPassManagerImpl_New::doInitialization(Module &M) { 6713799f97d539f6c288d169063e1b335917fafcffbDevang Patel bool Changed = false; 6723799f97d539f6c288d169063e1b335917fafcffbDevang Patel 6733799f97d539f6c288d169063e1b335917fafcffbDevang Patel for (std::vector<Pass *>::iterator itr = passVectorBegin(), 6743799f97d539f6c288d169063e1b335917fafcffbDevang Patel e = passVectorEnd(); itr != e; ++itr) { 6753799f97d539f6c288d169063e1b335917fafcffbDevang Patel Pass *P = *itr; 6763799f97d539f6c288d169063e1b335917fafcffbDevang Patel 6773799f97d539f6c288d169063e1b335917fafcffbDevang Patel FunctionPass *FP = dynamic_cast<FunctionPass*>(P); 6783799f97d539f6c288d169063e1b335917fafcffbDevang Patel Changed |= FP->doInitialization(M); 6793799f97d539f6c288d169063e1b335917fafcffbDevang Patel } 6803799f97d539f6c288d169063e1b335917fafcffbDevang Patel 6813799f97d539f6c288d169063e1b335917fafcffbDevang Patel return Changed; 6823799f97d539f6c288d169063e1b335917fafcffbDevang Patel} 6833799f97d539f6c288d169063e1b335917fafcffbDevang Patel 6843799f97d539f6c288d169063e1b335917fafcffbDevang Patelinline bool FunctionPassManagerImpl_New::doFinalization(Module &M) { 6853799f97d539f6c288d169063e1b335917fafcffbDevang Patel bool Changed = false; 6863799f97d539f6c288d169063e1b335917fafcffbDevang Patel 6873799f97d539f6c288d169063e1b335917fafcffbDevang Patel for (std::vector<Pass *>::iterator itr = passVectorBegin(), 6883799f97d539f6c288d169063e1b335917fafcffbDevang Patel e = passVectorEnd(); itr != e; ++itr) { 6893799f97d539f6c288d169063e1b335917fafcffbDevang Patel Pass *P = *itr; 6903799f97d539f6c288d169063e1b335917fafcffbDevang Patel 6913799f97d539f6c288d169063e1b335917fafcffbDevang Patel FunctionPass *FP = dynamic_cast<FunctionPass*>(P); 6923799f97d539f6c288d169063e1b335917fafcffbDevang Patel Changed |= FP->doFinalization(M); 6933799f97d539f6c288d169063e1b335917fafcffbDevang Patel } 6943799f97d539f6c288d169063e1b335917fafcffbDevang Patel 6953799f97d539f6c288d169063e1b335917fafcffbDevang Patel 6963799f97d539f6c288d169063e1b335917fafcffbDevang Patel return Changed; 6973799f97d539f6c288d169063e1b335917fafcffbDevang Patel} 6983799f97d539f6c288d169063e1b335917fafcffbDevang Patel 69906e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel//===----------------------------------------------------------------------===// 70092c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel// ModulePassManager implementation 70192c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 70292c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel/// Add P into pass vector if it is manageble. If P is a FunctionPass 703c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// then use FunctionPassManagerImpl_New to manage it. Return false if P 70492c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel/// is not manageable by this manager. 70592c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patelbool 7062c5d1851bbcb20adb79664ec16ab1f97b9142086Devang PatelModulePassManager_New::addPass(Pass *P) { 70792c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 70892c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel // If P is FunctionPass then use function pass maanager. 70992c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel if (FunctionPass *FP = dynamic_cast<FunctionPass*>(P)) { 71092c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 71192c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel activeFunctionPassManager = NULL; 71292c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 71392c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel if (!activeFunctionPassManager 71492c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel || !activeFunctionPassManager->addPass(P)) { 71592c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 716c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel activeFunctionPassManager = new FunctionPassManagerImpl_New(); 717893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel addPassToManager(activeFunctionPassManager, false); 7182c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel if (!activeFunctionPassManager->addPass(FP)) 7192c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel assert(0 && "Unable to add pass"); 72092c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel } 72192c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel return true; 72292c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel } 72392c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 72492c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel ModulePass *MP = dynamic_cast<ModulePass *>(P); 72592c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel if (!MP) 72692c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel return false; 72792c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 72853596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel // If this pass does not preserve anlysis that is used by other passes 72953596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel // managed by this manager than it is not a suiable pass for this manager. 7302c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel if (!manageablePass(P)) 73153596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel return false; 73253596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel 733e253385b108cd946b1ac150302f246d3b218be77Devang Patel addPassToManager(MP); 73492c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel activeFunctionPassManager = NULL; 73592c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel return true; 73692c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel} 73792c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 73892c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 73992c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel/// Execute all of the passes scheduled for execution by invoking 74092c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel/// runOnModule method. Keep track of whether any of the passes modifies 74192c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel/// the module, and if so, return true. 74292c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patelbool 74392c45eebf77de5d6ee84a3f18f560b83cb68e720Devang PatelModulePassManager_New::runOnModule(Module &M) { 74492c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel bool Changed = false; 745cbfd29d0da5810949ba66701b91c1b954122077aDevang Patel initializeAnalysisInfo(); 746c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 747e253385b108cd946b1ac150302f246d3b218be77Devang Patel for (std::vector<Pass *>::iterator itr = passVectorBegin(), 748e253385b108cd946b1ac150302f246d3b218be77Devang Patel e = passVectorEnd(); itr != e; ++itr) { 74992c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel Pass *P = *itr; 750c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 751f32b4dd13e421b3ad4696f984cb2043ce64e19cbDevang Patel recordAvailableAnalysis(P); 75292c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel ModulePass *MP = dynamic_cast<ModulePass*>(P); 75392c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel Changed |= MP->runOnModule(M); 754c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel removeNotPreservedAnalysis(P); 755df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel removeDeadPasses(P); 75692c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel } 75792c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel return Changed; 75892c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel} 75992c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 760be6d515f481756ff549f355e32be1ac398e141d5Devang Patel/// Return true IFF AnalysisID AID is currently available. 76103153c70de080e4c184ad29f0d78e456019b9a4cDevang PatelPass *ModulePassManager_New::getAnalysisPassFromManager(AnalysisID AID) { 762be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 76303153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel 76403153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel Pass *P = getAnalysisPass(AID); 76503153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel if (P) 76603153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel return P; 767be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 768be6d515f481756ff549f355e32be1ac398e141d5Devang Patel if (activeFunctionPassManager && 769b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel activeFunctionPassManager->getAnalysisPass(AID) != 0) 77003153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel return activeFunctionPassManager->getAnalysisPass(AID); 771be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 772be6d515f481756ff549f355e32be1ac398e141d5Devang Patel // TODO : Check inactive managers 77303153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel return NULL; 774be6d515f481756ff549f355e32be1ac398e141d5Devang Patel} 775be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 77606e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel//===----------------------------------------------------------------------===// 77706e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel// PassManagerImpl implementation 77806e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel 779be6d515f481756ff549f355e32be1ac398e141d5Devang Patel/// Return true IFF AnalysisID AID is currently available. 78003153c70de080e4c184ad29f0d78e456019b9a4cDevang PatelPass *PassManagerImpl_New::getAnalysisPassFromManager(AnalysisID AID) { 781be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 78203153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel Pass *P = NULL; 7832718bfbaa6a1ecb37bb34483b09010cbb3563f83Devang Patel for (std::vector<ModulePassManager_New *>::iterator itr = PassManagers.begin(), 78403153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel e = PassManagers.end(); !P && itr != e; ++itr) 78503153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel P = (*itr)->getAnalysisPassFromManager(AID); 78603153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel return P; 787be6d515f481756ff549f355e32be1ac398e141d5Devang Patel} 788be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 789f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel/// Schedule pass P for execution. Make sure that passes required by 790f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel/// P are run before P is run. Update analysis info maintained by 791f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel/// the manager. Remove dead passes. This is a recursive function. 792f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patelvoid PassManagerImpl_New::schedulePass(Pass *P) { 793f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel 794f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel AnalysisUsage AnUsage; 795f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel P->getAnalysisUsage(AnUsage); 796f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel const std::vector<AnalysisID> &RequiredSet = AnUsage.getRequiredSet(); 797f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel for (std::vector<AnalysisID>::const_iterator I = RequiredSet.begin(), 798f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel E = RequiredSet.end(); I != E; ++I) { 799f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel 80003153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel Pass *AnalysisPass = getAnalysisPassFromManager(*I); 80103153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel if (!AnalysisPass) { 802f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel // Schedule this analysis run first. 80303153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel AnalysisPass = (*I)->createPass(); 80403153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel schedulePass(AnalysisPass); 805f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel } 80603153c70de080e4c184ad29f0d78e456019b9a4cDevang Patel setLastUser (AnalysisPass, P); 807861967815396df9f8b01327197fd2715d2c7555cDevang Patel 808861967815396df9f8b01327197fd2715d2c7555cDevang Patel // Prolong live range of analyses that are needed after an analysis pass 809861967815396df9f8b01327197fd2715d2c7555cDevang Patel // is destroyed, for querying by subsequent passes 810861967815396df9f8b01327197fd2715d2c7555cDevang Patel const std::vector<AnalysisID> &IDs = AnUsage.getRequiredTransitiveSet(); 811861967815396df9f8b01327197fd2715d2c7555cDevang Patel for (std::vector<AnalysisID>::const_iterator I = IDs.begin(), 812861967815396df9f8b01327197fd2715d2c7555cDevang Patel E = IDs.end(); I != E; ++I) { 813861967815396df9f8b01327197fd2715d2c7555cDevang Patel Pass *AP = getAnalysisPassFromManager(*I); 814861967815396df9f8b01327197fd2715d2c7555cDevang Patel assert (AP && "Analysis pass is not available"); 815861967815396df9f8b01327197fd2715d2c7555cDevang Patel setLastUser(AP, P); 816861967815396df9f8b01327197fd2715d2c7555cDevang Patel } 817f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel } 818f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel addPass(P); 819f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel} 820f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel 821b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel/// Schedule all passes from the queue by adding them in their 822b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel/// respective manager's queue. 823f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patelvoid PassManagerImpl_New::schedulePasses() { 824f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel for (std::vector<Pass *>::iterator I = passVectorBegin(), 825f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel E = passVectorEnd(); I != E; ++I) 826f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel schedulePass (*I); 827b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel} 828b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel 829b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel/// Add pass P to the queue of passes to run. 830f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patelvoid PassManagerImpl_New::add(Pass *P) { 831f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel // Do not process Analysis now. Analysis is process while scheduling 832f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel // the pass vector. 833fcb2d940a0f0c471069a65c57c48b847d1b6762eDevang Patel addPassToManager(P, false); 834b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel} 835b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel 836b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel// PassManager_New implementation 837b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel/// Add P into active pass manager or use new module pass manager to 838b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel/// manage it. 839f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patelbool PassManagerImpl_New::addPass(Pass *P) { 840b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel 841a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel if (!activeManager || !activeManager->addPass(P)) { 842b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel activeManager = new ModulePassManager_New(); 843b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel PassManagers.push_back(activeManager); 844b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel } 845b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel 846b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel return activeManager->addPass(P); 847b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel} 848b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel 849b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel/// run - Execute all of the passes scheduled for execution. Keep track of 850b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel/// whether any of the passes modifies the module, and if so, return true. 851f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patelbool PassManagerImpl_New::run(Module &M) { 852b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel 853b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel schedulePasses(); 854b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel bool Changed = false; 855b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel for (std::vector<ModulePassManager_New *>::iterator itr = PassManagers.begin(), 856b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel e = PassManagers.end(); itr != e; ++itr) { 857b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel ModulePassManager_New *pm = *itr; 858b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel Changed |= pm->runOnModule(M); 859b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel } 860b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel return Changed; 861b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel} 8625a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 86306e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel//===----------------------------------------------------------------------===// 86406e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel// PassManager implementation 86506e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel 8665a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// Create new pass manager 8675a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang PatelPassManager_New::PassManager_New() { 8685a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel PM = new PassManagerImpl_New(); 8695a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel} 8705a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 8715a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// add - Add a pass to the queue of passes to run. This passes ownership of 8725a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// the Pass to the PassManager. When the PassManager is destroyed, the pass 8735a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// will be destroyed as well, so there is no need to delete the pass. This 8745a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// implies that all passes MUST be allocated with 'new'. 8755a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patelvoid 8765a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang PatelPassManager_New::add(Pass *P) { 8775a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel PM->add(P); 8785a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel} 8795a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 8805a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// run - Execute all of the passes scheduled for execution. Keep track of 8815a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// whether any of the passes modifies the module, and if so, return true. 8825a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patelbool 8835a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang PatelPassManager_New::run(Module &M) { 8845a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel return PM->run(M); 8855a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel} 8865a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 887