PassManager.cpp revision c1d6e1fc9c3a47529f417026df652f466ce67851
155fd43f90913676682487f89f27c756adb827f66Devang Patel//===- PassManager.cpp - LLVM Pass Infrastructure Implementation ----------===// 255fd43f90913676682487f89f27c756adb827f66Devang Patel// 355fd43f90913676682487f89f27c756adb827f66Devang Patel// The LLVM Compiler Infrastructure 455fd43f90913676682487f89f27c756adb827f66Devang Patel// 5c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel// This file was developed by Devang Patel and is distributed under 655fd43f90913676682487f89f27c756adb827f66Devang Patel// the University of Illinois Open Source License. See LICENSE.TXT for details. 755fd43f90913676682487f89f27c756adb827f66Devang Patel// 855fd43f90913676682487f89f27c756adb827f66Devang Patel//===----------------------------------------------------------------------===// 955fd43f90913676682487f89f27c756adb827f66Devang Patel// 1055fd43f90913676682487f89f27c756adb827f66Devang Patel// This file implements the LLVM Pass Manager infrastructure. 1155fd43f90913676682487f89f27c756adb827f66Devang Patel// 1255fd43f90913676682487f89f27c756adb827f66Devang Patel//===----------------------------------------------------------------------===// 1355fd43f90913676682487f89f27c756adb827f66Devang Patel 1455fd43f90913676682487f89f27c756adb827f66Devang Patel 1555fd43f90913676682487f89f27c756adb827f66Devang Patel#include "llvm/PassManager.h" 1655fd43f90913676682487f89f27c756adb827f66Devang Patel#include "llvm/Module.h" 1785d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel#include <vector> 1885d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel#include <set> 1955fd43f90913676682487f89f27c756adb827f66Devang Patel 2055fd43f90913676682487f89f27c756adb827f66Devang Patelusing namespace llvm; 2155fd43f90913676682487f89f27c756adb827f66Devang Patel 22c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelnamespace llvm { 23c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 2485d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel/// CommonPassManagerImpl helps pass manager analysis required by 2585d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel/// the managed passes. It provides methods to add/remove analysis 2685d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel/// available and query if certain analysis is available or not. 2785d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patelclass CommonPassManagerImpl : public Pass { 2885d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 2985d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patelpublic: 3085d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 3185d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel /// Return true IFF pass P's required analysis set does not required new 3285d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel /// manager. 3385d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel bool manageablePass(Pass *P); 3485d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 3585d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel /// Return true IFF AnalysisID AID is currently available. 36be6d515f481756ff549f355e32be1ac398e141d5Devang Patel bool isAnalysisAvailable(AnalysisID AID) { 37be6d515f481756ff549f355e32be1ac398e141d5Devang Patel return (AvailableAnalysis.count(AID) != 0); 38be6d515f481756ff549f355e32be1ac398e141d5Devang Patel } 3985d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 4085d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel /// Augment RequiredAnalysis by adding analysis required by pass P. 4185d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel void noteDownRequiredAnalysis(Pass *P); 4285d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 4385d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel /// Augment AvailableAnalysis by adding analysis made available by pass P. 4485d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel void noteDownAvailableAnalysis(Pass *P); 4585d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 4685d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel /// Remove Analysis that is not preserved by the pass 4785d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel void removeNotPreservedAnalysis(Pass *P); 4885d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 4985d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel /// Remove dead passes 5085d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel void removeDeadPasses() { /* TODO : Implement */ } 5185d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 52e253385b108cd946b1ac150302f246d3b218be77Devang Patel /// Add pass P into the PassVector. Update RequiredAnalysis and 53893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel /// AvailableAnalysis appropriately if ProcessAnalysis is true. 54893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel void addPassToManager (Pass *P, bool ProcessAnalysis = true); 55e253385b108cd946b1ac150302f246d3b218be77Devang Patel 56c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel /// Clear analysis vectors RequiredAnalysis and AvailableAnalysis. 57c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel /// This is used before running passes managed by the manager. 58c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel void clearAnalysis() { 59c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel RequiredAnalysis.clear(); 60c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel AvailableAnalysis.clear(); 61c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel } 62c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 63e253385b108cd946b1ac150302f246d3b218be77Devang Patel inline std::vector<Pass *>::iterator passVectorBegin() { 64e253385b108cd946b1ac150302f246d3b218be77Devang Patel return PassVector.begin(); 65e253385b108cd946b1ac150302f246d3b218be77Devang Patel } 66e253385b108cd946b1ac150302f246d3b218be77Devang Patel 67e253385b108cd946b1ac150302f246d3b218be77Devang Patel inline std::vector<Pass *>::iterator passVectorEnd() { 68e253385b108cd946b1ac150302f246d3b218be77Devang Patel return PassVector.end(); 69e253385b108cd946b1ac150302f246d3b218be77Devang Patel } 70e253385b108cd946b1ac150302f246d3b218be77Devang Patel 7185d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patelprivate: 725770c7cd52d6a3dfd9a5815cc9153d94afc6dd31Devang Patel // Analysis required by the passes managed by this manager. This information 735770c7cd52d6a3dfd9a5815cc9153d94afc6dd31Devang Patel // used while selecting pass manager during addPass. If a pass does not 745770c7cd52d6a3dfd9a5815cc9153d94afc6dd31Devang Patel // preserve any analysis required by other passes managed by current 755770c7cd52d6a3dfd9a5815cc9153d94afc6dd31Devang Patel // pass manager then new pass manager is used. 7685d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel std::vector<AnalysisID> RequiredAnalysis; 7785d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 785770c7cd52d6a3dfd9a5815cc9153d94afc6dd31Devang Patel // Set of available Analysis. This information is used while scheduling 795770c7cd52d6a3dfd9a5815cc9153d94afc6dd31Devang Patel // pass. If a pass requires an analysis which is not not available then 805770c7cd52d6a3dfd9a5815cc9153d94afc6dd31Devang Patel // equired analysis pass is scheduled to run before the pass itself is 815770c7cd52d6a3dfd9a5815cc9153d94afc6dd31Devang Patel // scheduled to run. 8285d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel std::set<AnalysisID> AvailableAnalysis; 83e253385b108cd946b1ac150302f246d3b218be77Devang Patel 84e253385b108cd946b1ac150302f246d3b218be77Devang Patel // Collection of pass that are managed by this manager 85e253385b108cd946b1ac150302f246d3b218be77Devang Patel std::vector<Pass *> PassVector; 8685d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel}; 8785d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel 88c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// BasicBlockPassManager_New manages BasicBlockPass. It batches all the 89c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// pass together and sequence them to process one basic block before 90c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// processing next basic block. 9137a84c7d8bda439082b883e33be6ab88b4cce236Devang Patelclass BasicBlockPassManager_New : public CommonPassManagerImpl { 92c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 93c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelpublic: 94c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel BasicBlockPassManager_New() { } 95c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 96c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// Add a pass into a passmanager queue. 97c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel bool addPass(Pass *p); 98c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 99c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// Execute all of the passes scheduled for execution. Keep track of 100c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// whether any of the passes modifies the function, and if so, return true. 101c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel bool runOnFunction(Function &F); 102c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 103be6d515f481756ff549f355e32be1ac398e141d5Devang Patel /// Return true IFF AnalysisID AID is currently available. 104be6d515f481756ff549f355e32be1ac398e141d5Devang Patel bool analysisCurrentlyAvailable(AnalysisID AID); 105be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 106c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelprivate: 107c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel}; 108c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 109c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// FunctionPassManagerImpl_New manages FunctionPasses and BasicBlockPassManagers. 110c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// It batches all function passes and basic block pass managers together and 111c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// sequence them to process one function at a time before processing next 112c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// function. 11337a84c7d8bda439082b883e33be6ab88b4cce236Devang Patelclass FunctionPassManagerImpl_New : public CommonPassManagerImpl { 114c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelpublic: 115c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel FunctionPassManagerImpl_New(ModuleProvider *P) { /* TODO */ } 116c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel FunctionPassManagerImpl_New() { 117c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel activeBBPassManager = NULL; 118c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel } 119c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel ~FunctionPassManagerImpl_New() { /* TODO */ }; 120c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 121c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// add - Add a pass to the queue of passes to run. This passes 122c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// ownership of the Pass to the PassManager. When the 123c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// PassManager_X is destroyed, the pass will be destroyed as well, so 124c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// there is no need to delete the pass. (TODO delete passes.) 125c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// This implies that all passes MUST be allocated with 'new'. 126c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel void add(Pass *P) { /* TODO*/ } 127c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 128c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// Add pass into the pass manager queue. 129c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel bool addPass(Pass *P); 130c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 131c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// Execute all of the passes scheduled for execution. Keep 132c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// track of whether any of the passes modifies the function, and if 133c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// so, return true. 134c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel bool runOnModule(Module &M); 135c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 136be6d515f481756ff549f355e32be1ac398e141d5Devang Patel /// Return true IFF AnalysisID AID is currently available. 137be6d515f481756ff549f355e32be1ac398e141d5Devang Patel bool analysisCurrentlyAvailable(AnalysisID AID); 138be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 139c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelprivate: 140c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel // Active Pass Managers 141c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel BasicBlockPassManager_New *activeBBPassManager; 142c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel}; 143c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 144c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// ModulePassManager_New manages ModulePasses and function pass managers. 145c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// It batches all Module passes passes and function pass managers together and 146c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// sequence them to process one module. 14737a84c7d8bda439082b883e33be6ab88b4cce236Devang Patelclass ModulePassManager_New : public CommonPassManagerImpl { 148c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 149c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelpublic: 150c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel ModulePassManager_New() { activeFunctionPassManager = NULL; } 151c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 152c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// Add a pass into a passmanager queue. 153c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel bool addPass(Pass *p); 154c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 155c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// run - Execute all of the passes scheduled for execution. Keep track of 156c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// whether any of the passes modifies the module, and if so, return true. 157c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel bool runOnModule(Module &M); 158be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 159be6d515f481756ff549f355e32be1ac398e141d5Devang Patel /// Return true IFF AnalysisID AID is currently available. 160be6d515f481756ff549f355e32be1ac398e141d5Devang Patel bool analysisCurrentlyAvailable(AnalysisID AID); 161c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 162c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelprivate: 163c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel // Active Pass Manager 164c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel FunctionPassManagerImpl_New *activeFunctionPassManager; 165c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel}; 166c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 1675a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// PassManager_New manages ModulePassManagers 16837a84c7d8bda439082b883e33be6ab88b4cce236Devang Patelclass PassManagerImpl_New : public CommonPassManagerImpl { 1695a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 1705a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patelpublic: 1715a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 1725a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// add - Add a pass to the queue of passes to run. This passes ownership of 1735a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// the Pass to the PassManager. When the PassManager is destroyed, the pass 1745a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// will be destroyed as well, so there is no need to delete the pass. This 1755a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// implies that all passes MUST be allocated with 'new'. 1765a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel void add(Pass *P); 1775a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 1785a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// run - Execute all of the passes scheduled for execution. Keep track of 1795a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// whether any of the passes modifies the module, and if so, return true. 1805a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel bool run(Module &M); 1815a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 182be6d515f481756ff549f355e32be1ac398e141d5Devang Patel /// Return true IFF AnalysisID AID is currently available. 183be6d515f481756ff549f355e32be1ac398e141d5Devang Patel bool analysisCurrentlyAvailable(AnalysisID AID); 184be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 1855a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patelprivate: 1865a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 1875a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// Add a pass into a passmanager queue. This is used by schedulePasses 1885a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel bool addPass(Pass *p); 1895a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 190f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel /// Schedule pass P for execution. Make sure that passes required by 191f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel /// P are run before P is run. Update analysis info maintained by 192f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel /// the manager. Remove dead passes. This is a recursive function. 193f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel void schedulePass(Pass *P); 194f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel 1955a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// Schedule all passes collected in pass queue using add(). Add all the 1965a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// schedule passes into various manager's queue using addPass(). 1975a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel void schedulePasses(); 1985a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 1995a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel // Collection of pass managers 2005a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel std::vector<ModulePassManager_New *> PassManagers; 2015a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 2025a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel // Active Pass Manager 2035a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel ModulePassManager_New *activeManager; 2045a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel}; 2055a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 206c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel} // End of llvm namespace 207c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 20837a84c7d8bda439082b883e33be6ab88b4cce236Devang Patel// CommonPassManagerImpl implementation 209889739c4d188d28c167644bced9df0f3131317d7Devang Patel 2102c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel/// Return true IFF pass P's required analysis set does not required new 211889739c4d188d28c167644bced9df0f3131317d7Devang Patel/// manager. 21237a84c7d8bda439082b883e33be6ab88b4cce236Devang Patelbool CommonPassManagerImpl::manageablePass(Pass *P) { 213889739c4d188d28c167644bced9df0f3131317d7Devang Patel 214889739c4d188d28c167644bced9df0f3131317d7Devang Patel AnalysisUsage AnUsage; 215889739c4d188d28c167644bced9df0f3131317d7Devang Patel P->getAnalysisUsage(AnUsage); 216889739c4d188d28c167644bced9df0f3131317d7Devang Patel 217a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel // If this pass is not preserving information that is required by the other 218a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel // passes managed by this manager then use new manager 219a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel if (!AnUsage.getPreservesAll()) { 220a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel const std::vector<AnalysisID> &PreservedSet = AnUsage.getPreservedSet(); 221a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel for (std::vector<AnalysisID>::iterator I = RequiredAnalysis.begin(), 222a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel E = RequiredAnalysis.end(); I != E; ++I) { 223a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel if (std::find(PreservedSet.begin(), PreservedSet.end(), *I) == 224a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel PreservedSet.end()) 225a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel // This analysis is not preserved. Need new manager. 226a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel return false; 227a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel } 228a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel } 229889739c4d188d28c167644bced9df0f3131317d7Devang Patel return true; 230889739c4d188d28c167644bced9df0f3131317d7Devang Patel} 231889739c4d188d28c167644bced9df0f3131317d7Devang Patel 232b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel/// Augment RequiredAnalysis by adding analysis required by pass P. 23337a84c7d8bda439082b883e33be6ab88b4cce236Devang Patelvoid CommonPassManagerImpl::noteDownRequiredAnalysis(Pass *P) { 234a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel AnalysisUsage AnUsage; 235a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel P->getAnalysisUsage(AnUsage); 236a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel const std::vector<AnalysisID> &RequiredSet = AnUsage.getRequiredSet(); 237889739c4d188d28c167644bced9df0f3131317d7Devang Patel 238a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel // FIXME: What about duplicates ? 23914d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel RequiredAnalysis.insert(RequiredAnalysis.end(), RequiredSet.begin(), 24014d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel RequiredSet.end()); 241889739c4d188d28c167644bced9df0f3131317d7Devang Patel} 242889739c4d188d28c167644bced9df0f3131317d7Devang Patel 243b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel/// Augement AvailableAnalysis by adding analysis made available by pass P. 244b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patelvoid CommonPassManagerImpl::noteDownAvailableAnalysis(Pass *P) { 245b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel 246b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel if (const PassInfo *PI = P->getPassInfo()) { 247b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel AvailableAnalysis.insert(PI); 248b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel 249b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel //TODO This pass is the current implementation of all of the interfaces it 250b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel //TODO implements as well. 251b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel //TODO 252b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel //TODO const std::vector<const PassInfo*> &II = PI->getInterfacesImplemented(); 253b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel //TODO for (unsigned i = 0, e = II.size(); i != e; ++i) 254b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel //TODO CurrentAnalyses[II[i]] = P; 255b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel } 256b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel} 257b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel 258889739c4d188d28c167644bced9df0f3131317d7Devang Patel/// Remove Analyss not preserved by Pass P 25937a84c7d8bda439082b883e33be6ab88b4cce236Devang Patelvoid CommonPassManagerImpl::removeNotPreservedAnalysis(Pass *P) { 26014d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel AnalysisUsage AnUsage; 26114d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel P->getAnalysisUsage(AnUsage); 26214d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel const std::vector<AnalysisID> &PreservedSet = AnUsage.getPreservedSet(); 26314d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel 26414d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel for (std::set<AnalysisID>::iterator I = AvailableAnalysis.begin(), 26514d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel E = AvailableAnalysis.end(); I != E; ++I ) { 26614d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel if (std::find(PreservedSet.begin(), PreservedSet.end(), *I) == 26714d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel PreservedSet.end()) { 26814d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel // Remove this analysis 26914d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel std::set<AnalysisID>::iterator J = I++; 27014d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel AvailableAnalysis.erase(J); 27114d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel } 27214d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel } 273889739c4d188d28c167644bced9df0f3131317d7Devang Patel} 274889739c4d188d28c167644bced9df0f3131317d7Devang Patel 275e253385b108cd946b1ac150302f246d3b218be77Devang Patel/// Add pass P into the PassVector. Update RequiredAnalysis and 276893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel/// AvailableAnalysis appropriately if ProcessAnalysis is true. 277893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patelvoid CommonPassManagerImpl::addPassToManager (Pass *P, 278893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel bool ProcessAnalysis) { 279e253385b108cd946b1ac150302f246d3b218be77Devang Patel 280893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel if (ProcessAnalysis) { 281893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel // Take a note of analysis required and made available by this pass 282893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel noteDownRequiredAnalysis(P); 283893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel noteDownAvailableAnalysis(P); 284893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel 285893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel // Remove the analysis not preserved by this pass 286893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel removeNotPreservedAnalysis(P); 287893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel } 288e253385b108cd946b1ac150302f246d3b218be77Devang Patel 289e253385b108cd946b1ac150302f246d3b218be77Devang Patel // Add pass 290e253385b108cd946b1ac150302f246d3b218be77Devang Patel PassVector.push_back(P); 291e253385b108cd946b1ac150302f246d3b218be77Devang Patel} 292e253385b108cd946b1ac150302f246d3b218be77Devang Patel 29355fd43f90913676682487f89f27c756adb827f66Devang Patel/// BasicBlockPassManager implementation 29455fd43f90913676682487f89f27c756adb827f66Devang Patel 2952c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel/// Add pass P into PassVector and return true. If this pass is not 2962c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel/// manageable by this manager then return false. 29755fd43f90913676682487f89f27c756adb827f66Devang Patelbool 2982c5d1851bbcb20adb79664ec16ab1f97b9142086Devang PatelBasicBlockPassManager_New::addPass(Pass *P) { 29955fd43f90913676682487f89f27c756adb827f66Devang Patel 30055fd43f90913676682487f89f27c756adb827f66Devang Patel BasicBlockPass *BP = dynamic_cast<BasicBlockPass*>(P); 30155fd43f90913676682487f89f27c756adb827f66Devang Patel if (!BP) 30255fd43f90913676682487f89f27c756adb827f66Devang Patel return false; 30355fd43f90913676682487f89f27c756adb827f66Devang Patel 30453596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel // If this pass does not preserve anlysis that is used by other passes 30553596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel // managed by this manager than it is not a suiable pass for this manager. 3062c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel if (!manageablePass(P)) 30753596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel return false; 30853596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel 309e253385b108cd946b1ac150302f246d3b218be77Devang Patel addPassToManager (BP); 31014d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel 31155fd43f90913676682487f89f27c756adb827f66Devang Patel return true; 31255fd43f90913676682487f89f27c756adb827f66Devang Patel} 31355fd43f90913676682487f89f27c756adb827f66Devang Patel 31455fd43f90913676682487f89f27c756adb827f66Devang Patel/// Execute all of the passes scheduled for execution by invoking 31555fd43f90913676682487f89f27c756adb827f66Devang Patel/// runOnBasicBlock method. Keep track of whether any of the passes modifies 31655fd43f90913676682487f89f27c756adb827f66Devang Patel/// the function, and if so, return true. 31755fd43f90913676682487f89f27c756adb827f66Devang Patelbool 31855fd43f90913676682487f89f27c756adb827f66Devang PatelBasicBlockPassManager_New::runOnFunction(Function &F) { 31955fd43f90913676682487f89f27c756adb827f66Devang Patel 32055fd43f90913676682487f89f27c756adb827f66Devang Patel bool Changed = false; 321c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel clearAnalysis(); 322c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 32355fd43f90913676682487f89f27c756adb827f66Devang Patel for (Function::iterator I = F.begin(), E = F.end(); I != E; ++I) 324e253385b108cd946b1ac150302f246d3b218be77Devang Patel for (std::vector<Pass *>::iterator itr = passVectorBegin(), 325e253385b108cd946b1ac150302f246d3b218be77Devang Patel e = passVectorEnd(); itr != e; ++itr) { 32655fd43f90913676682487f89f27c756adb827f66Devang Patel Pass *P = *itr; 327c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 328c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel noteDownAvailableAnalysis(P); 32955fd43f90913676682487f89f27c756adb827f66Devang Patel BasicBlockPass *BP = dynamic_cast<BasicBlockPass*>(P); 33055fd43f90913676682487f89f27c756adb827f66Devang Patel Changed |= BP->runOnBasicBlock(*I); 331c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel removeNotPreservedAnalysis(P); 332c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel removeDeadPasses(); 33355fd43f90913676682487f89f27c756adb827f66Devang Patel } 33455fd43f90913676682487f89f27c756adb827f66Devang Patel return Changed; 33555fd43f90913676682487f89f27c756adb827f66Devang Patel} 33655fd43f90913676682487f89f27c756adb827f66Devang Patel 337be6d515f481756ff549f355e32be1ac398e141d5Devang Patel/// Return true IFF AnalysisID AID is currently available. 338be6d515f481756ff549f355e32be1ac398e141d5Devang Patelbool BasicBlockPassManager_New::analysisCurrentlyAvailable(AnalysisID AID) { 339be6d515f481756ff549f355e32be1ac398e141d5Devang Patel return isAnalysisAvailable(AID); 340be6d515f481756ff549f355e32be1ac398e141d5Devang Patel} 341be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 342448d27cd795dc273249f123444509403f4fa4facDevang Patel// FunctionPassManager_New implementation 343c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// Create new Function pass manager 344c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang PatelFunctionPassManager_New::FunctionPassManager_New() { 345c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel FPM = new FunctionPassManagerImpl_New(); 346c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel} 347c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel 348c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// add - Add a pass to the queue of passes to run. This passes 349c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// ownership of the Pass to the PassManager. When the 350c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// PassManager_X is destroyed, the pass will be destroyed as well, so 351c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// there is no need to delete the pass. (TODO delete passes.) 352c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// This implies that all passes MUST be allocated with 'new'. 353c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patelvoid 354c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang PatelFunctionPassManager_New::add(Pass *P) { 355c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel FPM->add(P); 356c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel} 357c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel 358c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// Execute all of the passes scheduled for execution. Keep 359c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// track of whether any of the passes modifies the function, and if 360c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// so, return true. 361c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patelbool 362c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang PatelFunctionPassManager_New::runOnModule(Module &M) { 363c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel return FPM->runOnModule(M); 364c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel} 365c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel 366c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel// FunctionPassManagerImpl_New implementation 367448d27cd795dc273249f123444509403f4fa4facDevang Patel 368448d27cd795dc273249f123444509403f4fa4facDevang Patel// FunctionPassManager 369448d27cd795dc273249f123444509403f4fa4facDevang Patel 370448d27cd795dc273249f123444509403f4fa4facDevang Patel/// Add pass P into the pass manager queue. If P is a BasicBlockPass then 371448d27cd795dc273249f123444509403f4fa4facDevang Patel/// either use it into active basic block pass manager or create new basic 372448d27cd795dc273249f123444509403f4fa4facDevang Patel/// block pass manager to handle pass P. 373448d27cd795dc273249f123444509403f4fa4facDevang Patelbool 374c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang PatelFunctionPassManagerImpl_New::addPass(Pass *P) { 375448d27cd795dc273249f123444509403f4fa4facDevang Patel 376448d27cd795dc273249f123444509403f4fa4facDevang Patel // If P is a BasicBlockPass then use BasicBlockPassManager_New. 377448d27cd795dc273249f123444509403f4fa4facDevang Patel if (BasicBlockPass *BP = dynamic_cast<BasicBlockPass*>(P)) { 378448d27cd795dc273249f123444509403f4fa4facDevang Patel 379448d27cd795dc273249f123444509403f4fa4facDevang Patel if (!activeBBPassManager 380448d27cd795dc273249f123444509403f4fa4facDevang Patel || !activeBBPassManager->addPass(BP)) { 381448d27cd795dc273249f123444509403f4fa4facDevang Patel 382448d27cd795dc273249f123444509403f4fa4facDevang Patel activeBBPassManager = new BasicBlockPassManager_New(); 383893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel addPassToManager(activeBBPassManager, false); 3842c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel if (!activeBBPassManager->addPass(BP)) 3852c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel assert(0 && "Unable to add Pass"); 386448d27cd795dc273249f123444509403f4fa4facDevang Patel } 387448d27cd795dc273249f123444509403f4fa4facDevang Patel return true; 388448d27cd795dc273249f123444509403f4fa4facDevang Patel } 389448d27cd795dc273249f123444509403f4fa4facDevang Patel 390448d27cd795dc273249f123444509403f4fa4facDevang Patel FunctionPass *FP = dynamic_cast<FunctionPass *>(P); 391448d27cd795dc273249f123444509403f4fa4facDevang Patel if (!FP) 392448d27cd795dc273249f123444509403f4fa4facDevang Patel return false; 393448d27cd795dc273249f123444509403f4fa4facDevang Patel 39453596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel // If this pass does not preserve anlysis that is used by other passes 39553596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel // managed by this manager than it is not a suiable pass for this manager. 3962c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel if (!manageablePass(P)) 39753596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel return false; 39853596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel 399e253385b108cd946b1ac150302f246d3b218be77Devang Patel addPassToManager (FP); 400448d27cd795dc273249f123444509403f4fa4facDevang Patel activeBBPassManager = NULL; 401448d27cd795dc273249f123444509403f4fa4facDevang Patel return true; 402448d27cd795dc273249f123444509403f4fa4facDevang Patel} 403448d27cd795dc273249f123444509403f4fa4facDevang Patel 404448d27cd795dc273249f123444509403f4fa4facDevang Patel/// Execute all of the passes scheduled for execution by invoking 405448d27cd795dc273249f123444509403f4fa4facDevang Patel/// runOnFunction method. Keep track of whether any of the passes modifies 406448d27cd795dc273249f123444509403f4fa4facDevang Patel/// the function, and if so, return true. 407448d27cd795dc273249f123444509403f4fa4facDevang Patelbool 408c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang PatelFunctionPassManagerImpl_New::runOnModule(Module &M) { 409448d27cd795dc273249f123444509403f4fa4facDevang Patel 410448d27cd795dc273249f123444509403f4fa4facDevang Patel bool Changed = false; 411c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel clearAnalysis(); 412c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 413448d27cd795dc273249f123444509403f4fa4facDevang Patel for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I) 414e253385b108cd946b1ac150302f246d3b218be77Devang Patel for (std::vector<Pass *>::iterator itr = passVectorBegin(), 415e253385b108cd946b1ac150302f246d3b218be77Devang Patel e = passVectorEnd(); itr != e; ++itr) { 416448d27cd795dc273249f123444509403f4fa4facDevang Patel Pass *P = *itr; 417c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 418c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel noteDownAvailableAnalysis(P); 419448d27cd795dc273249f123444509403f4fa4facDevang Patel FunctionPass *FP = dynamic_cast<FunctionPass*>(P); 420448d27cd795dc273249f123444509403f4fa4facDevang Patel Changed |= FP->runOnFunction(*I); 421c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel removeNotPreservedAnalysis(P); 422c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel removeDeadPasses(); 423448d27cd795dc273249f123444509403f4fa4facDevang Patel } 424448d27cd795dc273249f123444509403f4fa4facDevang Patel return Changed; 425448d27cd795dc273249f123444509403f4fa4facDevang Patel} 426448d27cd795dc273249f123444509403f4fa4facDevang Patel 427be6d515f481756ff549f355e32be1ac398e141d5Devang Patel/// Return true IFF AnalysisID AID is currently available. 428be6d515f481756ff549f355e32be1ac398e141d5Devang Patelbool FunctionPassManagerImpl_New::analysisCurrentlyAvailable(AnalysisID AID) { 429be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 430be6d515f481756ff549f355e32be1ac398e141d5Devang Patel if (isAnalysisAvailable(AID)) 431be6d515f481756ff549f355e32be1ac398e141d5Devang Patel return true; 432be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 433be6d515f481756ff549f355e32be1ac398e141d5Devang Patel if (activeBBPassManager && 434be6d515f481756ff549f355e32be1ac398e141d5Devang Patel activeBBPassManager->isAnalysisAvailable(AID)) 435be6d515f481756ff549f355e32be1ac398e141d5Devang Patel return true; 436be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 437be6d515f481756ff549f355e32be1ac398e141d5Devang Patel // TODO : Check inactive managers 438be6d515f481756ff549f355e32be1ac398e141d5Devang Patel return false; 439be6d515f481756ff549f355e32be1ac398e141d5Devang Patel} 440448d27cd795dc273249f123444509403f4fa4facDevang Patel 44192c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel// ModulePassManager implementation 44292c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 44392c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel/// Add P into pass vector if it is manageble. If P is a FunctionPass 444c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// then use FunctionPassManagerImpl_New to manage it. Return false if P 44592c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel/// is not manageable by this manager. 44692c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patelbool 4472c5d1851bbcb20adb79664ec16ab1f97b9142086Devang PatelModulePassManager_New::addPass(Pass *P) { 44892c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 44992c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel // If P is FunctionPass then use function pass maanager. 45092c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel if (FunctionPass *FP = dynamic_cast<FunctionPass*>(P)) { 45192c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 45292c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel activeFunctionPassManager = NULL; 45392c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 45492c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel if (!activeFunctionPassManager 45592c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel || !activeFunctionPassManager->addPass(P)) { 45692c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 457c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel activeFunctionPassManager = new FunctionPassManagerImpl_New(); 458893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel addPassToManager(activeFunctionPassManager, false); 4592c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel if (!activeFunctionPassManager->addPass(FP)) 4602c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel assert(0 && "Unable to add pass"); 46192c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel } 46292c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel return true; 46392c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel } 46492c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 46592c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel ModulePass *MP = dynamic_cast<ModulePass *>(P); 46692c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel if (!MP) 46792c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel return false; 46892c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 46953596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel // If this pass does not preserve anlysis that is used by other passes 47053596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel // managed by this manager than it is not a suiable pass for this manager. 4712c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel if (!manageablePass(P)) 47253596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel return false; 47353596b6ba5d3199621e5a6e0cdbfcde3ee710397Devang Patel 474e253385b108cd946b1ac150302f246d3b218be77Devang Patel addPassToManager(MP); 47592c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel activeFunctionPassManager = NULL; 47692c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel return true; 47792c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel} 47892c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 47992c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 48092c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel/// Execute all of the passes scheduled for execution by invoking 48192c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel/// runOnModule method. Keep track of whether any of the passes modifies 48292c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel/// the module, and if so, return true. 48392c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patelbool 48492c45eebf77de5d6ee84a3f18f560b83cb68e720Devang PatelModulePassManager_New::runOnModule(Module &M) { 48592c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel bool Changed = false; 486c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel clearAnalysis(); 487c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 488e253385b108cd946b1ac150302f246d3b218be77Devang Patel for (std::vector<Pass *>::iterator itr = passVectorBegin(), 489e253385b108cd946b1ac150302f246d3b218be77Devang Patel e = passVectorEnd(); itr != e; ++itr) { 49092c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel Pass *P = *itr; 491c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 492c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel noteDownAvailableAnalysis(P); 49392c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel ModulePass *MP = dynamic_cast<ModulePass*>(P); 49492c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel Changed |= MP->runOnModule(M); 495c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel removeNotPreservedAnalysis(P); 496c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel removeDeadPasses(); 49792c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel } 49892c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel return Changed; 49992c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel} 50092c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 501be6d515f481756ff549f355e32be1ac398e141d5Devang Patel/// Return true IFF AnalysisID AID is currently available. 502be6d515f481756ff549f355e32be1ac398e141d5Devang Patelbool ModulePassManager_New::analysisCurrentlyAvailable(AnalysisID AID) { 503be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 504be6d515f481756ff549f355e32be1ac398e141d5Devang Patel if (isAnalysisAvailable(AID)) 505be6d515f481756ff549f355e32be1ac398e141d5Devang Patel return true; 506be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 507be6d515f481756ff549f355e32be1ac398e141d5Devang Patel if (activeFunctionPassManager && 508be6d515f481756ff549f355e32be1ac398e141d5Devang Patel activeFunctionPassManager->isAnalysisAvailable(AID)) 509be6d515f481756ff549f355e32be1ac398e141d5Devang Patel return true; 510be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 511be6d515f481756ff549f355e32be1ac398e141d5Devang Patel // TODO : Check inactive managers 512be6d515f481756ff549f355e32be1ac398e141d5Devang Patel return false; 513be6d515f481756ff549f355e32be1ac398e141d5Devang Patel} 514be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 515be6d515f481756ff549f355e32be1ac398e141d5Devang Patel/// Return true IFF AnalysisID AID is currently available. 516be6d515f481756ff549f355e32be1ac398e141d5Devang Patelbool PassManagerImpl_New::analysisCurrentlyAvailable(AnalysisID AID) { 517be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 5182718bfbaa6a1ecb37bb34483b09010cbb3563f83Devang Patel bool available = false; 5192718bfbaa6a1ecb37bb34483b09010cbb3563f83Devang Patel for (std::vector<ModulePassManager_New *>::iterator itr = PassManagers.begin(), 5202718bfbaa6a1ecb37bb34483b09010cbb3563f83Devang Patel e = PassManagers.end(); !available && itr != e; ++itr) 5212718bfbaa6a1ecb37bb34483b09010cbb3563f83Devang Patel available = (*itr)->analysisCurrentlyAvailable(AID); 5222718bfbaa6a1ecb37bb34483b09010cbb3563f83Devang Patel return available; 523be6d515f481756ff549f355e32be1ac398e141d5Devang Patel} 524be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 525f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel/// Schedule pass P for execution. Make sure that passes required by 526f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel/// P are run before P is run. Update analysis info maintained by 527f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel/// the manager. Remove dead passes. This is a recursive function. 528f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patelvoid PassManagerImpl_New::schedulePass(Pass *P) { 529f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel 530f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel AnalysisUsage AnUsage; 531f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel P->getAnalysisUsage(AnUsage); 532f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel const std::vector<AnalysisID> &RequiredSet = AnUsage.getRequiredSet(); 533f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel for (std::vector<AnalysisID>::const_iterator I = RequiredSet.begin(), 534f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel E = RequiredSet.end(); I != E; ++I) { 535f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel 536be6d515f481756ff549f355e32be1ac398e141d5Devang Patel if (!analysisCurrentlyAvailable(*I)) { 537f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel // Schedule this analysis run first. 538f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel Pass *AP = (*I)->createPass(); 539f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel schedulePass(AP); 540f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel } 541f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel } 542f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel 543f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel addPass(P); 544f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel} 545f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel 546b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel/// Schedule all passes from the queue by adding them in their 547b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel/// respective manager's queue. 548f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patelvoid PassManagerImpl_New::schedulePasses() { 549f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel for (std::vector<Pass *>::iterator I = passVectorBegin(), 550f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel E = passVectorEnd(); I != E; ++I) 551f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel schedulePass (*I); 552b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel} 553b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel 554b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel/// Add pass P to the queue of passes to run. 555f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patelvoid PassManagerImpl_New::add(Pass *P) { 556f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel // Do not process Analysis now. Analysis is process while scheduling 557f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patel // the pass vector. 558fcb2d940a0f0c471069a65c57c48b847d1b6762eDevang Patel addPassToManager(P, false); 559b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel} 560b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel 561b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel// PassManager_New implementation 562b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel/// Add P into active pass manager or use new module pass manager to 563b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel/// manage it. 564f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patelbool PassManagerImpl_New::addPass(Pass *P) { 565b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel 566a363a0bdefd2e798a83acd8998591b5b07c4256eDevang Patel if (!activeManager || !activeManager->addPass(P)) { 567b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel activeManager = new ModulePassManager_New(); 568b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel PassManagers.push_back(activeManager); 569b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel } 570b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel 571b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel return activeManager->addPass(P); 572b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel} 573b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel 574b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel/// run - Execute all of the passes scheduled for execution. Keep track of 575b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel/// whether any of the passes modifies the module, and if so, return true. 576f8af6f0ec15d117cfe47bf32dd4e46ab52d42254Devang Patelbool PassManagerImpl_New::run(Module &M) { 577b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel 578b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel schedulePasses(); 579b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel bool Changed = false; 580b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel for (std::vector<ModulePassManager_New *>::iterator itr = PassManagers.begin(), 581b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel e = PassManagers.end(); itr != e; ++itr) { 582b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel ModulePassManager_New *pm = *itr; 583b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel Changed |= pm->runOnModule(M); 584b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel } 585b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel return Changed; 586b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel} 5875a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 5885a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// Create new pass manager 5895a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang PatelPassManager_New::PassManager_New() { 5905a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel PM = new PassManagerImpl_New(); 5915a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel} 5925a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 5935a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// add - Add a pass to the queue of passes to run. This passes ownership of 5945a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// the Pass to the PassManager. When the PassManager is destroyed, the pass 5955a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// will be destroyed as well, so there is no need to delete the pass. This 5965a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// implies that all passes MUST be allocated with 'new'. 5975a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patelvoid 5985a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang PatelPassManager_New::add(Pass *P) { 5995a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel PM->add(P); 6005a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel} 6015a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 6025a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// run - Execute all of the passes scheduled for execution. Keep track of 6035a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// whether any of the passes modifies the module, and if so, return true. 6045a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patelbool 6055a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang PatelPassManager_New::run(Module &M) { 6065a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel return PM->run(M); 6075a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel} 6085a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 609