PassManager.cpp revision 22a1cf9d3a5c829d260bcf44ffe6b34ecf16076c
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 15ab7752c1496c2913793305ba4b989a551c5617e1Devang Patel#include "llvm/PassManagers.h" 1645dc02d6f97447785ee7ffe08c36a34bc8921b0bDevang Patel#include "llvm/Support/CommandLine.h" 17c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel#include "llvm/Support/Timer.h" 1855fd43f90913676682487f89f27c756adb827f66Devang Patel#include "llvm/Module.h" 193799f97d539f6c288d169063e1b335917fafcffbDevang Patel#include "llvm/ModuleProvider.h" 208f487662869d10c866b9ebdccb8f6a7509d3ab56Bill Wendling#include "llvm/Support/Streams.h" 218e58a1b17bb57e6ffa187a0ec758f9a1bed7685bDevang Patel#include "llvm/Support/ManagedStatic.h" 22ca5183d445954a9b2a570d6bbba1bc2b00ad6442Jeff Cohen#include <algorithm> 2385d344b0c68048527f1ac46ba22bbc950870d3c5Devang Patel#include <vector> 24b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel#include <map> 25c2ff962bf97761a54c94d2dadb555060403d49c6Devang Patel 26ab7752c1496c2913793305ba4b989a551c5617e1Devang Patel// See PassManagers.h for Pass Manager infrastructure overview. 27e77242c3d5843a5a6484794254623c8552dc6a4fDevang Patel 2845dc02d6f97447785ee7ffe08c36a34bc8921b0bDevang Patelnamespace llvm { 2945dc02d6f97447785ee7ffe08c36a34bc8921b0bDevang Patel 3045dc02d6f97447785ee7ffe08c36a34bc8921b0bDevang Patel//===----------------------------------------------------------------------===// 3145dc02d6f97447785ee7ffe08c36a34bc8921b0bDevang Patel// Pass debugging information. Often it is useful to find out what pass is 3245dc02d6f97447785ee7ffe08c36a34bc8921b0bDevang Patel// running when a crash occurs in a utility. When this library is compiled with 3345dc02d6f97447785ee7ffe08c36a34bc8921b0bDevang Patel// debugging on, a command line option (--debug-pass) is enabled that causes the 3445dc02d6f97447785ee7ffe08c36a34bc8921b0bDevang Patel// pass name to be printed before it executes. 3545dc02d6f97447785ee7ffe08c36a34bc8921b0bDevang Patel// 3645dc02d6f97447785ee7ffe08c36a34bc8921b0bDevang Patel 37e8ff1ce7343c697ff90d940c8c5fa8fccc09220dDevang Patel// Different debug levels that can be enabled... 38e8ff1ce7343c697ff90d940c8c5fa8fccc09220dDevang Patelenum PassDebugLevel { 39e8ff1ce7343c697ff90d940c8c5fa8fccc09220dDevang Patel None, Arguments, Structure, Executions, Details 40e8ff1ce7343c697ff90d940c8c5fa8fccc09220dDevang Patel}; 41e8ff1ce7343c697ff90d940c8c5fa8fccc09220dDevang Patel 4245dc02d6f97447785ee7ffe08c36a34bc8921b0bDevang Patelstatic cl::opt<enum PassDebugLevel> 4326426949f33e5a77fbd2fa330f7df5626e8b177dDevang PatelPassDebugging("debug-pass", cl::Hidden, 4445dc02d6f97447785ee7ffe08c36a34bc8921b0bDevang Patel cl::desc("Print PassManager debugging information"), 4545dc02d6f97447785ee7ffe08c36a34bc8921b0bDevang Patel cl::values( 46e8ff1ce7343c697ff90d940c8c5fa8fccc09220dDevang Patel clEnumVal(None , "disable debug output"), 47e8ff1ce7343c697ff90d940c8c5fa8fccc09220dDevang Patel clEnumVal(Arguments , "print pass arguments to pass to 'opt'"), 48e8ff1ce7343c697ff90d940c8c5fa8fccc09220dDevang Patel clEnumVal(Structure , "print pass structure before run()"), 49e8ff1ce7343c697ff90d940c8c5fa8fccc09220dDevang Patel clEnumVal(Executions, "print pass name before it is executed"), 50e8ff1ce7343c697ff90d940c8c5fa8fccc09220dDevang Patel clEnumVal(Details , "print pass details when it is executed"), 5145dc02d6f97447785ee7ffe08c36a34bc8921b0bDevang Patel clEnumValEnd)); 5245dc02d6f97447785ee7ffe08c36a34bc8921b0bDevang Patel} // End of llvm namespace 5345dc02d6f97447785ee7ffe08c36a34bc8921b0bDevang Patel 54c2ff962bf97761a54c94d2dadb555060403d49c6Devang Patelnamespace { 551b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel 563f5d2b58b84cb12a9520dd33921ca556d539eb4dDevang Patel//===----------------------------------------------------------------------===// 575f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel// BBPassManager 587e601a70fcaf0a3090368425bbb339aab038d3e3Devang Patel// 595f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel/// BBPassManager manages BasicBlockPass. It batches all the 60c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// pass together and sequence them to process one basic block before 61c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// processing next basic block. 625f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patelclass VISIBILITY_HIDDEN BBPassManager : public PMDataManager, 635f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel public FunctionPass { 64c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 65c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelpublic: 665f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel BBPassManager(int Depth) : PMDataManager(Depth) { } 67c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 68c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// Execute all of the passes scheduled for execution. Keep track of 69c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// whether any of the passes modifies the function, and if so, return true. 70c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel bool runOnFunction(Function &F); 71c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 7266d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel /// Pass Manager itself does not invalidate any analysis info. 7366d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel void getAnalysisUsage(AnalysisUsage &Info) const { 7466d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel Info.setPreservesAll(); 7566d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel } 7666d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel 77964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel bool doInitialization(Module &M); 78964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel bool doInitialization(Function &F); 79964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel bool doFinalization(Module &M); 80964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel bool doFinalization(Function &F); 81964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 82e27ae7e44ea024ad4b73939820563373cca28228Devang Patel virtual const char *getPassName() const { 83e27ae7e44ea024ad4b73939820563373cca28228Devang Patel return "BasicBlock Pass Manager"; 84e27ae7e44ea024ad4b73939820563373cca28228Devang Patel } 85e27ae7e44ea024ad4b73939820563373cca28228Devang Patel 86ebc0922eeb5b728d33a68d4bea8128413f62e369Devang Patel // Print passes managed by this manager 87ebc0922eeb5b728d33a68d4bea8128413f62e369Devang Patel void dumpPassStructure(unsigned Offset) { 88c2ff962bf97761a54c94d2dadb555060403d49c6Devang Patel llvm::cerr << std::string(Offset*2, ' ') << "BasicBlockPass Manager\n"; 891554c8545651350569f08dc7370189da1a7e5814Devang Patel for (unsigned Index = 0; Index < getNumContainedPasses(); ++Index) { 901554c8545651350569f08dc7370189da1a7e5814Devang Patel BasicBlockPass *BP = getContainedPass(Index); 911554c8545651350569f08dc7370189da1a7e5814Devang Patel BP->dumpPassStructure(Offset + 1); 921554c8545651350569f08dc7370189da1a7e5814Devang Patel dumpLastUses(BP, Offset+1); 93ebc0922eeb5b728d33a68d4bea8128413f62e369Devang Patel } 94ebc0922eeb5b728d33a68d4bea8128413f62e369Devang Patel } 951554c8545651350569f08dc7370189da1a7e5814Devang Patel 961554c8545651350569f08dc7370189da1a7e5814Devang Patel BasicBlockPass *getContainedPass(unsigned N) { 971554c8545651350569f08dc7370189da1a7e5814Devang Patel assert ( N < PassVector.size() && "Pass number out of range!"); 981554c8545651350569f08dc7370189da1a7e5814Devang Patel BasicBlockPass *BP = static_cast<BasicBlockPass *>(PassVector[N]); 991554c8545651350569f08dc7370189da1a7e5814Devang Patel return BP; 1001554c8545651350569f08dc7370189da1a7e5814Devang Patel } 10125919cb7802f2682b159a040ba07c5bd12b54efaDevang Patel 10284da80d10b472332d079c58d21aa48b82e636274Devang Patel virtual PassManagerType getPassManagerType() const { 10325919cb7802f2682b159a040ba07c5bd12b54efaDevang Patel return PMT_BasicBlockPassManager; 10425919cb7802f2682b159a040ba07c5bd12b54efaDevang Patel } 105c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel}; 106c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 107ab7752c1496c2913793305ba4b989a551c5617e1Devang Patel} 1081554c8545651350569f08dc7370189da1a7e5814Devang Patel 109ab7752c1496c2913793305ba4b989a551c5617e1Devang Patelnamespace llvm { 1105f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel 1115f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel//===----------------------------------------------------------------------===// 1125f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel// FunctionPassManagerImpl 1135f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel// 1145f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel/// FunctionPassManagerImpl manages FPPassManagers 1155f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patelclass FunctionPassManagerImpl : public Pass, 11636bcb82c3f7acd7cc3a79f51102c5995db2fb723Devang Patel public PMDataManager, 11736bcb82c3f7acd7cc3a79f51102c5995db2fb723Devang Patel public PMTopLevelManager { 1185f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patelpublic: 1195f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel 1208f3f3d103a8b92bd0514ab5998865205e17ef550Devang Patel FunctionPassManagerImpl(int Depth) : PMDataManager(Depth), 1218f3f3d103a8b92bd0514ab5998865205e17ef550Devang Patel PMTopLevelManager(TLM_Function) { } 1225f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel 1235f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel /// add - Add a pass to the queue of passes to run. This passes ownership of 1245f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel /// the Pass to the PassManager. When the PassManager is destroyed, the pass 1255f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel /// will be destroyed as well, so there is no need to delete the pass. This 1265f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel /// implies that all passes MUST be allocated with 'new'. 1275f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel void add(Pass *P) { 1285f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel schedulePass(P); 1295f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel } 1305f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel 1315f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel /// run - Execute all of the passes scheduled for execution. Keep track of 1325f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel /// whether any of the passes modifies the module, and if so, return true. 1335f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel bool run(Function &F); 1345f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel 1355f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel /// doInitialization - Run all of the initializers for the function passes. 1365f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel /// 1375f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel bool doInitialization(Module &M); 1385f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel 1395f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel /// doFinalization - Run all of the initializers for the function passes. 1405f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel /// 1415f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel bool doFinalization(Module &M); 1425f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel 1435f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel /// Pass Manager itself does not invalidate any analysis info. 1445f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel void getAnalysisUsage(AnalysisUsage &Info) const { 1455f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel Info.setPreservesAll(); 1465f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel } 1475f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel 1485f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel inline void addTopLevelPass(Pass *P) { 1495f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel 1505f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel if (ImmutablePass *IP = dynamic_cast<ImmutablePass *> (P)) { 1515f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel 1525f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel // P is a immutable pass and it will be managed by this 1535f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel // top level manager. Set up analysis resolver to connect them. 154cde53d3c1e9d6a2add5de847b44818fbb1d69c20Devang Patel AnalysisResolver *AR = new AnalysisResolver(*this); 1555f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel P->setResolver(AR); 1565f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel initializeAnalysisImpl(P); 1575f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel addImmutablePass(IP); 1585f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel recordAvailableAnalysis(IP); 159a0dd987916b6e8dd445c35bdd456c55e7cd6fa3bDevang Patel } else { 160a0dd987916b6e8dd445c35bdd456c55e7cd6fa3bDevang Patel P->assignPassManager(activeStack); 1615f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel } 162a0dd987916b6e8dd445c35bdd456c55e7cd6fa3bDevang Patel 1635f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel } 1645f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel 1655f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel FPPassManager *getContainedManager(unsigned N) { 1665f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel assert ( N < PassManagers.size() && "Pass number out of range!"); 1675f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel FPPassManager *FP = static_cast<FPPassManager *>(PassManagers[N]); 1685f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel return FP; 1695f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel } 1705f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel 171c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel}; 172c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 1737e601a70fcaf0a3090368425bbb339aab038d3e3Devang Patel//===----------------------------------------------------------------------===// 1745f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel// MPPassManager 1757e601a70fcaf0a3090368425bbb339aab038d3e3Devang Patel// 1765f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel/// MPPassManager manages ModulePasses and function pass managers. 177c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// It batches all Module passes passes and function pass managers together and 178c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel/// sequence them to process one module. 1795f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patelclass MPPassManager : public Pass, public PMDataManager { 180c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 181c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patelpublic: 182a0dd987916b6e8dd445c35bdd456c55e7cd6fa3bDevang Patel MPPassManager(int Depth) : PMDataManager(Depth) { } 183c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 184c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// run - Execute all of the passes scheduled for execution. Keep track of 185c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel /// whether any of the passes modifies the module, and if so, return true. 186c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel bool runOnModule(Module &M); 187be6d515f481756ff549f355e32be1ac398e141d5Devang Patel 18866d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel /// Pass Manager itself does not invalidate any analysis info. 18966d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel void getAnalysisUsage(AnalysisUsage &Info) const { 19066d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel Info.setPreservesAll(); 19166d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel } 19266d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel 193e27ae7e44ea024ad4b73939820563373cca28228Devang Patel virtual const char *getPassName() const { 194e27ae7e44ea024ad4b73939820563373cca28228Devang Patel return "Module Pass Manager"; 195e27ae7e44ea024ad4b73939820563373cca28228Devang Patel } 196e27ae7e44ea024ad4b73939820563373cca28228Devang Patel 197ebc0922eeb5b728d33a68d4bea8128413f62e369Devang Patel // Print passes managed by this manager 198ebc0922eeb5b728d33a68d4bea8128413f62e369Devang Patel void dumpPassStructure(unsigned Offset) { 199ebc0922eeb5b728d33a68d4bea8128413f62e369Devang Patel llvm::cerr << std::string(Offset*2, ' ') << "ModulePass Manager\n"; 2001554c8545651350569f08dc7370189da1a7e5814Devang Patel for (unsigned Index = 0; Index < getNumContainedPasses(); ++Index) { 2011554c8545651350569f08dc7370189da1a7e5814Devang Patel ModulePass *MP = getContainedPass(Index); 2021554c8545651350569f08dc7370189da1a7e5814Devang Patel MP->dumpPassStructure(Offset + 1); 2031554c8545651350569f08dc7370189da1a7e5814Devang Patel dumpLastUses(MP, Offset+1); 204ebc0922eeb5b728d33a68d4bea8128413f62e369Devang Patel } 205ebc0922eeb5b728d33a68d4bea8128413f62e369Devang Patel } 206ebc0922eeb5b728d33a68d4bea8128413f62e369Devang Patel 2071554c8545651350569f08dc7370189da1a7e5814Devang Patel ModulePass *getContainedPass(unsigned N) { 2081554c8545651350569f08dc7370189da1a7e5814Devang Patel assert ( N < PassVector.size() && "Pass number out of range!"); 2091554c8545651350569f08dc7370189da1a7e5814Devang Patel ModulePass *MP = static_cast<ModulePass *>(PassVector[N]); 2101554c8545651350569f08dc7370189da1a7e5814Devang Patel return MP; 2111554c8545651350569f08dc7370189da1a7e5814Devang Patel } 2121554c8545651350569f08dc7370189da1a7e5814Devang Patel 21384da80d10b472332d079c58d21aa48b82e636274Devang Patel virtual PassManagerType getPassManagerType() const { 21484da80d10b472332d079c58d21aa48b82e636274Devang Patel return PMT_ModulePassManager; 21584da80d10b472332d079c58d21aa48b82e636274Devang Patel } 216c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel}; 217c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 2187e601a70fcaf0a3090368425bbb339aab038d3e3Devang Patel//===----------------------------------------------------------------------===// 2195f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel// PassManagerImpl 2207e601a70fcaf0a3090368425bbb339aab038d3e3Devang Patel// 2215f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel/// PassManagerImpl manages MPPassManagers 2225f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patelclass PassManagerImpl : public Pass, 22336bcb82c3f7acd7cc3a79f51102c5995db2fb723Devang Patel public PMDataManager, 22436bcb82c3f7acd7cc3a79f51102c5995db2fb723Devang Patel public PMTopLevelManager { 2255a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 2265a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patelpublic: 2275a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 2288f3f3d103a8b92bd0514ab5998865205e17ef550Devang Patel PassManagerImpl(int Depth) : PMDataManager(Depth), 2298f3f3d103a8b92bd0514ab5998865205e17ef550Devang Patel PMTopLevelManager(TLM_Pass) { } 230f72d29c540bf32b9c0e8914484cbbdeac70ee12aDevang Patel 2315a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// add - Add a pass to the queue of passes to run. This passes ownership of 2325a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// the Pass to the PassManager. When the PassManager is destroyed, the pass 2335a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// will be destroyed as well, so there is no need to delete the pass. This 2345a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// implies that all passes MUST be allocated with 'new'. 235877bfbb9ef75e7fe333d93abecaf0579780ccf54Devang Patel void add(Pass *P) { 236e61b7478e53cea3183d4aee3799a4f0977b850a0Devang Patel schedulePass(P); 237877bfbb9ef75e7fe333d93abecaf0579780ccf54Devang Patel } 2385a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 2395a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// run - Execute all of the passes scheduled for execution. Keep track of 2405a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel /// whether any of the passes modifies the module, and if so, return true. 2415a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel bool run(Module &M); 2425a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 24366d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel /// Pass Manager itself does not invalidate any analysis info. 24466d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel void getAnalysisUsage(AnalysisUsage &Info) const { 24566d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel Info.setPreservesAll(); 24666d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel } 24766d72e140bf7bdfe03383bfb4d3fe53a420d147bDevang Patel 248eb0d613ef6755f93610e08534a203c41ec14b56aDevang Patel inline void addTopLevelPass(Pass *P) { 249145e83dc12a3f962b999f348474ebb07a36a7b81Devang Patel 250c9a6293af7b433146d8f7ecf8fa494b530af9376Devang Patel if (ImmutablePass *IP = dynamic_cast<ImmutablePass *> (P)) { 251145e83dc12a3f962b999f348474ebb07a36a7b81Devang Patel 252145e83dc12a3f962b999f348474ebb07a36a7b81Devang Patel // P is a immutable pass and it will be managed by this 253145e83dc12a3f962b999f348474ebb07a36a7b81Devang Patel // top level manager. Set up analysis resolver to connect them. 254cde53d3c1e9d6a2add5de847b44818fbb1d69c20Devang Patel AnalysisResolver *AR = new AnalysisResolver(*this); 255145e83dc12a3f962b999f348474ebb07a36a7b81Devang Patel P->setResolver(AR); 256689c683bccbb28b4d18a3dbe1b1c28ee6b90b17aDevang Patel initializeAnalysisImpl(P); 257c9a6293af7b433146d8f7ecf8fa494b530af9376Devang Patel addImmutablePass(IP); 258689c683bccbb28b4d18a3dbe1b1c28ee6b90b17aDevang Patel recordAvailableAnalysis(IP); 259a0dd987916b6e8dd445c35bdd456c55e7cd6fa3bDevang Patel } else { 260a0dd987916b6e8dd445c35bdd456c55e7cd6fa3bDevang Patel P->assignPassManager(activeStack); 261145e83dc12a3f962b999f348474ebb07a36a7b81Devang Patel } 262a0dd987916b6e8dd445c35bdd456c55e7cd6fa3bDevang Patel 263eb0d613ef6755f93610e08534a203c41ec14b56aDevang Patel } 264eb0d613ef6755f93610e08534a203c41ec14b56aDevang Patel 2655f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel MPPassManager *getContainedManager(unsigned N) { 2665f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel assert ( N < PassManagers.size() && "Pass number out of range!"); 2675f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel MPPassManager *MP = static_cast<MPPassManager *>(PassManagers[N]); 2685f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel return MP; 2695f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel } 2705f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel 2715a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel}; 2725a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 273c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel} // End of llvm namespace 2748e58a1b17bb57e6ffa187a0ec758f9a1bed7685bDevang Patel 275c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patelnamespace { 276b05ef6a8eb4e06a4c3addb74d7d30eb2150049eaDevang Patel 277c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel//===----------------------------------------------------------------------===// 278c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel// TimingInfo Class - This class is used to calculate information about the 279c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel// amount of time each pass takes to execute. This only happens when 280c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel// -time-passes is enabled on the command line. 281c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel// 282c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel 283c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patelclass VISIBILITY_HIDDEN TimingInfo { 284c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel std::map<Pass*, Timer> TimingData; 285c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel TimerGroup TG; 286c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel 287c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patelpublic: 288c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel // Use 'create' member to get this. 289c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel TimingInfo() : TG("... Pass execution timing report ...") {} 290c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel 291c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel // TimingDtor - Print out information about timing information 292c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel ~TimingInfo() { 293c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel // Delete all of the timers... 294c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel TimingData.clear(); 295c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel // TimerGroup is deleted next, printing the report. 296c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel } 297c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel 298c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel // createTheTimeInfo - This method either initializes the TheTimeInfo pointer 299c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel // to a non null value (if the -time-passes option is enabled) or it leaves it 300c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel // null. It may be called multiple times. 301c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel static void createTheTimeInfo(); 302c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel 303c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel void passStarted(Pass *P) { 304c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel 305c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel if (dynamic_cast<PMDataManager *>(P)) 306c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel return; 307c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel 308c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel std::map<Pass*, Timer>::iterator I = TimingData.find(P); 309c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel if (I == TimingData.end()) 310c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel I=TimingData.insert(std::make_pair(P, Timer(P->getPassName(), TG))).first; 311c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel I->second.startTimer(); 312c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel } 313c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel void passEnded(Pass *P) { 314c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel 315c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel if (dynamic_cast<PMDataManager *>(P)) 316c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel return; 317c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel 318c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel std::map<Pass*, Timer>::iterator I = TimingData.find(P); 319c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel assert (I != TimingData.end() && "passStarted/passEnded not nested right!"); 320c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel I->second.stopTimer(); 321c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel } 322c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel}; 323c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel 324c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patelstatic TimingInfo *TheTimeInfo; 325c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel 326c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel} // End of anon namespace 327c67c938de2097f26dba71d9436e4707dd8a5012dDevang Patel 32806e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel//===----------------------------------------------------------------------===// 3291b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel// PMTopLevelManager implementation 3301b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel 3318f3f3d103a8b92bd0514ab5998865205e17ef550Devang Patel/// Initialize top level manager. Create first pass manager. 3328f3f3d103a8b92bd0514ab5998865205e17ef550Devang PatelPMTopLevelManager::PMTopLevelManager (enum TopLevelManagerType t) { 3338f3f3d103a8b92bd0514ab5998865205e17ef550Devang Patel 3348f3f3d103a8b92bd0514ab5998865205e17ef550Devang Patel if (t == TLM_Pass) { 3358f3f3d103a8b92bd0514ab5998865205e17ef550Devang Patel MPPassManager *MPP = new MPPassManager(1); 3368f3f3d103a8b92bd0514ab5998865205e17ef550Devang Patel MPP->setTopLevelManager(this); 3378f3f3d103a8b92bd0514ab5998865205e17ef550Devang Patel addPassManager(MPP); 3388f3f3d103a8b92bd0514ab5998865205e17ef550Devang Patel activeStack.push(MPP); 3398f3f3d103a8b92bd0514ab5998865205e17ef550Devang Patel } 3408f3f3d103a8b92bd0514ab5998865205e17ef550Devang Patel else if (t == TLM_Function) { 3418f3f3d103a8b92bd0514ab5998865205e17ef550Devang Patel FPPassManager *FPP = new FPPassManager(1); 3428f3f3d103a8b92bd0514ab5998865205e17ef550Devang Patel FPP->setTopLevelManager(this); 3438f3f3d103a8b92bd0514ab5998865205e17ef550Devang Patel addPassManager(FPP); 3448f3f3d103a8b92bd0514ab5998865205e17ef550Devang Patel activeStack.push(FPP); 3458f3f3d103a8b92bd0514ab5998865205e17ef550Devang Patel } 3468f3f3d103a8b92bd0514ab5998865205e17ef550Devang Patel} 3478f3f3d103a8b92bd0514ab5998865205e17ef550Devang Patel 3481b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel/// Set pass P as the last user of the given analysis passes. 3491b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patelvoid PMTopLevelManager::setLastUser(std::vector<Pass *> &AnalysisPasses, 3501b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel Pass *P) { 3511b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel 3521b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel for (std::vector<Pass *>::iterator I = AnalysisPasses.begin(), 3531b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel E = AnalysisPasses.end(); I != E; ++I) { 3541b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel Pass *AP = *I; 3551b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel LastUser[AP] = P; 3561b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel // If AP is the last user of other passes then make P last user of 3571b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel // such passes. 3581b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel for (std::map<Pass *, Pass *>::iterator LUI = LastUser.begin(), 3591b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel LUE = LastUser.end(); LUI != LUE; ++LUI) { 3601b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel if (LUI->second == AP) 3611b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel LastUser[LUI->first] = P; 3621b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel } 3631b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel } 3641b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel} 3651b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel 3661b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel/// Collect passes whose last user is P 3671b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patelvoid PMTopLevelManager::collectLastUses(std::vector<Pass *> &LastUses, 3681b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel Pass *P) { 36963925c831ae17a6f894744dbc153dbc9ed4c1902Chris Lattner for (std::map<Pass *, Pass *>::iterator LUI = LastUser.begin(), 37063925c831ae17a6f894744dbc153dbc9ed4c1902Chris Lattner LUE = LastUser.end(); LUI != LUE; ++LUI) 37163925c831ae17a6f894744dbc153dbc9ed4c1902Chris Lattner if (LUI->second == P) 37263925c831ae17a6f894744dbc153dbc9ed4c1902Chris Lattner LastUses.push_back(LUI->first); 3731b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel} 3741b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel 3751b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel/// Schedule pass P for execution. Make sure that passes required by 3761b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel/// P are run before P is run. Update analysis info maintained by 3771b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel/// the manager. Remove dead passes. This is a recursive function. 3781b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patelvoid PMTopLevelManager::schedulePass(Pass *P) { 3791b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel 3809d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel // TODO : Allocate function manager for this pass, other wise required set 3819d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel // may be inserted into previous function manager 3821b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel 38390f1ad7bf4d98a47b5919dc1e9fd66dc1c1905b4Devang Patel // If this Analysis is already requested by one of the previous pass 38490f1ad7bf4d98a47b5919dc1e9fd66dc1c1905b4Devang Patel // and it is still available then do not insert new pass in the queue again. 38590f1ad7bf4d98a47b5919dc1e9fd66dc1c1905b4Devang Patel if (findAnalysisPass(P->getPassInfo())) 38690f1ad7bf4d98a47b5919dc1e9fd66dc1c1905b4Devang Patel return; 38790f1ad7bf4d98a47b5919dc1e9fd66dc1c1905b4Devang Patel 38822a1cf9d3a5c829d260bcf44ffe6b34ecf16076cDevang Patel // Give pass a chance to prepare the stage. 38922a1cf9d3a5c829d260bcf44ffe6b34ecf16076cDevang Patel P->preparePassManager(activeStack); 39022a1cf9d3a5c829d260bcf44ffe6b34ecf16076cDevang Patel 3911b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel AnalysisUsage AnUsage; 3921b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel P->getAnalysisUsage(AnUsage); 3931b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel const std::vector<AnalysisID> &RequiredSet = AnUsage.getRequiredSet(); 3941b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel for (std::vector<AnalysisID>::const_iterator I = RequiredSet.begin(), 3951b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel E = RequiredSet.end(); I != E; ++I) { 3961b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel 3971b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel Pass *AnalysisPass = findAnalysisPass(*I); 3981b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel if (!AnalysisPass) { 3991b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel // Schedule this analysis run first. 4001b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel AnalysisPass = (*I)->createPass(); 4011b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel schedulePass(AnalysisPass); 4021b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel } 4031b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel } 4041b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel 4051b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel // Now all required passes are available. 4061b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel addTopLevelPass(P); 4071b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel} 4081b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel 4091b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel/// Find the pass that implements Analysis AID. Search immutable 4101b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel/// passes and all pass managers. If desired pass is not found 4111b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel/// then return NULL. 4121b8d015066dca364a1b11b6dbe5b80248b111cd5Devang PatelPass *PMTopLevelManager::findAnalysisPass(AnalysisID AID) { 4131b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel 4141b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel Pass *P = NULL; 415d0fa16c33615bb6f21685c4e4e3d948ac6780160Devang Patel // Check pass managers 416d0fa16c33615bb6f21685c4e4e3d948ac6780160Devang Patel for (std::vector<Pass *>::iterator I = PassManagers.begin(), 417d0fa16c33615bb6f21685c4e4e3d948ac6780160Devang Patel E = PassManagers.end(); P == NULL && I != E; ++I) { 418d0fa16c33615bb6f21685c4e4e3d948ac6780160Devang Patel PMDataManager *PMD = dynamic_cast<PMDataManager *>(*I); 419d0fa16c33615bb6f21685c4e4e3d948ac6780160Devang Patel assert(PMD && "This is not a PassManager"); 420d0fa16c33615bb6f21685c4e4e3d948ac6780160Devang Patel P = PMD->findAnalysisPass(AID, false); 421d0fa16c33615bb6f21685c4e4e3d948ac6780160Devang Patel } 422d0fa16c33615bb6f21685c4e4e3d948ac6780160Devang Patel 423d0fa16c33615bb6f21685c4e4e3d948ac6780160Devang Patel // Check other pass managers 424d0fa16c33615bb6f21685c4e4e3d948ac6780160Devang Patel for (std::vector<PMDataManager *>::iterator I = IndirectPassManagers.begin(), 425d0fa16c33615bb6f21685c4e4e3d948ac6780160Devang Patel E = IndirectPassManagers.end(); P == NULL && I != E; ++I) 426d0fa16c33615bb6f21685c4e4e3d948ac6780160Devang Patel P = (*I)->findAnalysisPass(AID, false); 427d0fa16c33615bb6f21685c4e4e3d948ac6780160Devang Patel 4281b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel for (std::vector<ImmutablePass *>::iterator I = ImmutablePasses.begin(), 4291b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel E = ImmutablePasses.end(); P == NULL && I != E; ++I) { 4301b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel const PassInfo *PI = (*I)->getPassInfo(); 4311b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel if (PI == AID) 4321b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel P = *I; 4331b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel 4341b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel // If Pass not found then check the interfaces implemented by Immutable Pass 4351b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel if (!P) { 4361a8038636c2998e37f2130b0ab89a3686d9c1f48Devang Patel const std::vector<const PassInfo*> &ImmPI = PI->getInterfacesImplemented(); 4371a8038636c2998e37f2130b0ab89a3686d9c1f48Devang Patel if (std::find(ImmPI.begin(), ImmPI.end(), AID) != ImmPI.end()) 4381a8038636c2998e37f2130b0ab89a3686d9c1f48Devang Patel P = *I; 4391b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel } 4401b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel } 4411b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel 4421b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel return P; 4431b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel} 4441b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel 445ebc0922eeb5b728d33a68d4bea8128413f62e369Devang Patel// Print passes managed by this top level manager. 446a52035a062edf9bfbf95c92c615219b647042c17Devang Patelvoid PMTopLevelManager::dumpPasses() const { 447ebc0922eeb5b728d33a68d4bea8128413f62e369Devang Patel 44826426949f33e5a77fbd2fa330f7df5626e8b177dDevang Patel if (PassDebugging < Structure) 4495f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel return; 4505f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel 451ebc0922eeb5b728d33a68d4bea8128413f62e369Devang Patel // Print out the immutable passes 452ebc0922eeb5b728d33a68d4bea8128413f62e369Devang Patel for (unsigned i = 0, e = ImmutablePasses.size(); i != e; ++i) { 453ebc0922eeb5b728d33a68d4bea8128413f62e369Devang Patel ImmutablePasses[i]->dumpPassStructure(0); 454ebc0922eeb5b728d33a68d4bea8128413f62e369Devang Patel } 455ebc0922eeb5b728d33a68d4bea8128413f62e369Devang Patel 456a52035a062edf9bfbf95c92c615219b647042c17Devang Patel for (std::vector<Pass *>::const_iterator I = PassManagers.begin(), 457ebc0922eeb5b728d33a68d4bea8128413f62e369Devang Patel E = PassManagers.end(); I != E; ++I) 458ebc0922eeb5b728d33a68d4bea8128413f62e369Devang Patel (*I)->dumpPassStructure(1); 459ebc0922eeb5b728d33a68d4bea8128413f62e369Devang Patel} 460ebc0922eeb5b728d33a68d4bea8128413f62e369Devang Patel 461a52035a062edf9bfbf95c92c615219b647042c17Devang Patelvoid PMTopLevelManager::dumpArguments() const { 462c32cf54101ecaf336d161fecd58667870149169cDevang Patel 46326426949f33e5a77fbd2fa330f7df5626e8b177dDevang Patel if (PassDebugging < Arguments) 464c32cf54101ecaf336d161fecd58667870149169cDevang Patel return; 465c32cf54101ecaf336d161fecd58667870149169cDevang Patel 466c32cf54101ecaf336d161fecd58667870149169cDevang Patel cerr << "Pass Arguments: "; 467a52035a062edf9bfbf95c92c615219b647042c17Devang Patel for (std::vector<Pass *>::const_iterator I = PassManagers.begin(), 468c32cf54101ecaf336d161fecd58667870149169cDevang Patel E = PassManagers.end(); I != E; ++I) { 469c32cf54101ecaf336d161fecd58667870149169cDevang Patel PMDataManager *PMD = dynamic_cast<PMDataManager *>(*I); 470c32cf54101ecaf336d161fecd58667870149169cDevang Patel assert(PMD && "This is not a PassManager"); 471c32cf54101ecaf336d161fecd58667870149169cDevang Patel PMD->dumpPassArguments(); 472c32cf54101ecaf336d161fecd58667870149169cDevang Patel } 473c32cf54101ecaf336d161fecd58667870149169cDevang Patel cerr << "\n"; 474c32cf54101ecaf336d161fecd58667870149169cDevang Patel} 475c32cf54101ecaf336d161fecd58667870149169cDevang Patel 4761336a6bf06e64a096217628d2cc9644e48a5d7d6Devang Patelvoid PMTopLevelManager::initializeAllAnalysisInfo() { 4771336a6bf06e64a096217628d2cc9644e48a5d7d6Devang Patel 4781336a6bf06e64a096217628d2cc9644e48a5d7d6Devang Patel for (std::vector<Pass *>::iterator I = PassManagers.begin(), 4791336a6bf06e64a096217628d2cc9644e48a5d7d6Devang Patel E = PassManagers.end(); I != E; ++I) { 4801336a6bf06e64a096217628d2cc9644e48a5d7d6Devang Patel PMDataManager *PMD = dynamic_cast<PMDataManager *>(*I); 4811336a6bf06e64a096217628d2cc9644e48a5d7d6Devang Patel assert(PMD && "This is not a PassManager"); 4821336a6bf06e64a096217628d2cc9644e48a5d7d6Devang Patel PMD->initializeAnalysisInfo(); 4831336a6bf06e64a096217628d2cc9644e48a5d7d6Devang Patel } 4841336a6bf06e64a096217628d2cc9644e48a5d7d6Devang Patel 4851336a6bf06e64a096217628d2cc9644e48a5d7d6Devang Patel // Initailize other pass managers 4861336a6bf06e64a096217628d2cc9644e48a5d7d6Devang Patel for (std::vector<PMDataManager *>::iterator I = IndirectPassManagers.begin(), 4871336a6bf06e64a096217628d2cc9644e48a5d7d6Devang Patel E = IndirectPassManagers.end(); I != E; ++I) 4881336a6bf06e64a096217628d2cc9644e48a5d7d6Devang Patel (*I)->initializeAnalysisInfo(); 4891336a6bf06e64a096217628d2cc9644e48a5d7d6Devang Patel} 4901336a6bf06e64a096217628d2cc9644e48a5d7d6Devang Patel 491ab7752c1496c2913793305ba4b989a551c5617e1Devang Patel/// Destructor 492ab7752c1496c2913793305ba4b989a551c5617e1Devang PatelPMTopLevelManager::~PMTopLevelManager() { 493ab7752c1496c2913793305ba4b989a551c5617e1Devang Patel for (std::vector<Pass *>::iterator I = PassManagers.begin(), 494ab7752c1496c2913793305ba4b989a551c5617e1Devang Patel E = PassManagers.end(); I != E; ++I) 495ab7752c1496c2913793305ba4b989a551c5617e1Devang Patel delete *I; 496ab7752c1496c2913793305ba4b989a551c5617e1Devang Patel 497ab7752c1496c2913793305ba4b989a551c5617e1Devang Patel for (std::vector<ImmutablePass *>::iterator 498ab7752c1496c2913793305ba4b989a551c5617e1Devang Patel I = ImmutablePasses.begin(), E = ImmutablePasses.end(); I != E; ++I) 499ab7752c1496c2913793305ba4b989a551c5617e1Devang Patel delete *I; 500ab7752c1496c2913793305ba4b989a551c5617e1Devang Patel 501ab7752c1496c2913793305ba4b989a551c5617e1Devang Patel PassManagers.clear(); 502ab7752c1496c2913793305ba4b989a551c5617e1Devang Patel} 503ab7752c1496c2913793305ba4b989a551c5617e1Devang Patel 5041b8d015066dca364a1b11b6dbe5b80248b111cd5Devang Patel//===----------------------------------------------------------------------===// 505419f0e95d698109541ad730cb45ba4caca78f458Devang Patel// PMDataManager implementation 506889739c4d188d28c167644bced9df0f3131317d7Devang Patel 5072c5d1851bbcb20adb79664ec16ab1f97b9142086Devang Patel/// Return true IFF pass P's required analysis set does not required new 508889739c4d188d28c167644bced9df0f3131317d7Devang Patel/// manager. 509419f0e95d698109541ad730cb45ba4caca78f458Devang Patelbool PMDataManager::manageablePass(Pass *P) { 510889739c4d188d28c167644bced9df0f3131317d7Devang Patel 5114045af1175509c81d6a4708df233f0b1abe888fcDevang Patel // TODO 5124045af1175509c81d6a4708df233f0b1abe888fcDevang Patel // If this pass is not preserving information that is required by a 5134045af1175509c81d6a4708df233f0b1abe888fcDevang Patel // pass maintained by higher level pass manager then do not insert 5144045af1175509c81d6a4708df233f0b1abe888fcDevang Patel // this pass into current manager. Use new manager. For example, 5154045af1175509c81d6a4708df233f0b1abe888fcDevang Patel // For example, If FunctionPass F is not preserving ModulePass Info M1 5164045af1175509c81d6a4708df233f0b1abe888fcDevang Patel // that is used by another ModulePass M2 then do not insert F in 5174045af1175509c81d6a4708df233f0b1abe888fcDevang Patel // current function pass manager. 518889739c4d188d28c167644bced9df0f3131317d7Devang Patel return true; 519889739c4d188d28c167644bced9df0f3131317d7Devang Patel} 520889739c4d188d28c167644bced9df0f3131317d7Devang Patel 521b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel/// Augement AvailableAnalysis by adding analysis made available by pass P. 522f32b4dd13e421b3ad4696f984cb2043ce64e19cbDevang Patelvoid PMDataManager::recordAvailableAnalysis(Pass *P) { 523b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel 524b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel if (const PassInfo *PI = P->getPassInfo()) { 525b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel AvailableAnalysis[PI] = P; 526b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel 527f32b4dd13e421b3ad4696f984cb2043ce64e19cbDevang Patel //This pass is the current implementation of all of the interfaces it 528f32b4dd13e421b3ad4696f984cb2043ce64e19cbDevang Patel //implements as well. 529f32b4dd13e421b3ad4696f984cb2043ce64e19cbDevang Patel const std::vector<const PassInfo*> &II = PI->getInterfacesImplemented(); 530f32b4dd13e421b3ad4696f984cb2043ce64e19cbDevang Patel for (unsigned i = 0, e = II.size(); i != e; ++i) 531f32b4dd13e421b3ad4696f984cb2043ce64e19cbDevang Patel AvailableAnalysis[II[i]] = P; 532b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel } 533b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel} 534b8526162551a3fbcf787e01d82ef44b69f879e01Devang Patel 535889739c4d188d28c167644bced9df0f3131317d7Devang Patel/// Remove Analyss not preserved by Pass P 536419f0e95d698109541ad730cb45ba4caca78f458Devang Patelvoid PMDataManager::removeNotPreservedAnalysis(Pass *P) { 53714d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel AnalysisUsage AnUsage; 53814d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel P->getAnalysisUsage(AnUsage); 53914d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel 54004b4e0595ffffab232a73a78d742e08efb6ebcfbDevang Patel if (AnUsage.getPreservesAll()) 54104b4e0595ffffab232a73a78d742e08efb6ebcfbDevang Patel return; 54204b4e0595ffffab232a73a78d742e08efb6ebcfbDevang Patel 54304b4e0595ffffab232a73a78d742e08efb6ebcfbDevang Patel const std::vector<AnalysisID> &PreservedSet = AnUsage.getPreservedSet(); 544b899eed1bc0a64f96fa7aff8d7c6f999cf85bdfeDevang Patel for (std::map<AnalysisID, Pass*>::iterator I = AvailableAnalysis.begin(), 54554e247d2d0c07544b3e638e80b816f352ec152c1Devang Patel E = AvailableAnalysis.end(); I != E; ) { 5461a8038636c2998e37f2130b0ab89a3686d9c1f48Devang Patel std::map<AnalysisID, Pass*>::iterator Info = I++; 5471a8038636c2998e37f2130b0ab89a3686d9c1f48Devang Patel if (std::find(PreservedSet.begin(), PreservedSet.end(), Info->first) == 54814d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel PreservedSet.end()) { 54914d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel // Remove this analysis 5501a8038636c2998e37f2130b0ab89a3686d9c1f48Devang Patel if (!dynamic_cast<ImmutablePass*>(Info->second)) 5511a8038636c2998e37f2130b0ab89a3686d9c1f48Devang Patel AvailableAnalysis.erase(Info); 5521a8038636c2998e37f2130b0ab89a3686d9c1f48Devang Patel } 55314d6581a7374bdb4a66ef6c30250efdc324f6ddeDevang Patel } 554889739c4d188d28c167644bced9df0f3131317d7Devang Patel} 555889739c4d188d28c167644bced9df0f3131317d7Devang Patel 556df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel/// Remove analysis passes that are not used any longer 5577f99761143cdf1ad23729708e3dcaa055b189406Devang Patelvoid PMDataManager::removeDeadPasses(Pass *P, std::string Msg, 5587f99761143cdf1ad23729708e3dcaa055b189406Devang Patel enum PassDebuggingString DBG_STR) { 559f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel 560f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel std::vector<Pass *> DeadPasses; 561f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel TPM->collectLastUses(DeadPasses, P); 562f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel 563f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel for (std::vector<Pass *>::iterator I = DeadPasses.begin(), 564f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel E = DeadPasses.end(); I != E; ++I) { 5654eeea774ce1b24fa55c06aac31e02016d5dd77d6Devang Patel 5667f99761143cdf1ad23729708e3dcaa055b189406Devang Patel dumpPassInfo(*I, FREEING_MSG, DBG_STR, Msg); 5674eeea774ce1b24fa55c06aac31e02016d5dd77d6Devang Patel 56855d5ac7b5bd2c89da52398cb4347552e94f2d06dDevang Patel if (TheTimeInfo) TheTimeInfo->passStarted(*I); 569f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel (*I)->releaseMemory(); 57055d5ac7b5bd2c89da52398cb4347552e94f2d06dDevang Patel if (TheTimeInfo) TheTimeInfo->passEnded(*I); 5718e58a1b17bb57e6ffa187a0ec758f9a1bed7685bDevang Patel 572f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel std::map<AnalysisID, Pass*>::iterator Pos = 573f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel AvailableAnalysis.find((*I)->getPassInfo()); 574f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel 575964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel // It is possible that pass is already removed from the AvailableAnalysis 576f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel if (Pos != AvailableAnalysis.end()) 577f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel AvailableAnalysis.erase(Pos); 578f9a60ae75d6fdc74160085323c14e92e7d3517d3Devang Patel } 579df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel} 580df1a10ece6a75f230d98c6fb001349eede90387aDevang Patel 5814045af1175509c81d6a4708df233f0b1abe888fcDevang Patel/// Add pass P into the PassVector. Update 582893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel/// AvailableAnalysis appropriately if ProcessAnalysis is true. 583e24e0e1244dc273016e541948086a89ffce1f7e4Devang Patelvoid PMDataManager::add(Pass *P, 58466eeb49d8fcfdfa4946c41fd92b8165c0086689dDevang Patel bool ProcessAnalysis) { 585e253385b108cd946b1ac150302f246d3b218be77Devang Patel 586145e83dc12a3f962b999f348474ebb07a36a7b81Devang Patel // This manager is going to manage pass P. Set up analysis resolver 587145e83dc12a3f962b999f348474ebb07a36a7b81Devang Patel // to connect them. 588cde53d3c1e9d6a2add5de847b44818fbb1d69c20Devang Patel AnalysisResolver *AR = new AnalysisResolver(*this); 589145e83dc12a3f962b999f348474ebb07a36a7b81Devang Patel P->setResolver(AR); 590145e83dc12a3f962b999f348474ebb07a36a7b81Devang Patel 591cf5fb2b614a7fea4565e405c81a3ae8037d78f7bDevang Patel // If a FunctionPass F is the last user of ModulePass info M 592cf5fb2b614a7fea4565e405c81a3ae8037d78f7bDevang Patel // then the F's manager, not F, records itself as a last user of M. 593cf5fb2b614a7fea4565e405c81a3ae8037d78f7bDevang Patel std::vector<Pass *> TransferLastUses; 594cf5fb2b614a7fea4565e405c81a3ae8037d78f7bDevang Patel 595893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel if (ProcessAnalysis) { 596e16634065021e36ae31f074f623a636924d6b8d1Devang Patel 597e16634065021e36ae31f074f623a636924d6b8d1Devang Patel // At the moment, this pass is the last user of all required passes. 598e16634065021e36ae31f074f623a636924d6b8d1Devang Patel std::vector<Pass *> LastUses; 599e16634065021e36ae31f074f623a636924d6b8d1Devang Patel std::vector<Pass *> RequiredPasses; 600e16634065021e36ae31f074f623a636924d6b8d1Devang Patel unsigned PDepth = this->getDepth(); 601e16634065021e36ae31f074f623a636924d6b8d1Devang Patel 602e16634065021e36ae31f074f623a636924d6b8d1Devang Patel collectRequiredAnalysisPasses(RequiredPasses, P); 603e16634065021e36ae31f074f623a636924d6b8d1Devang Patel for (std::vector<Pass *>::iterator I = RequiredPasses.begin(), 604e16634065021e36ae31f074f623a636924d6b8d1Devang Patel E = RequiredPasses.end(); I != E; ++I) { 605e16634065021e36ae31f074f623a636924d6b8d1Devang Patel Pass *PRequired = *I; 606e16634065021e36ae31f074f623a636924d6b8d1Devang Patel unsigned RDepth = 0; 607cd520b187a222bf99d4238590e6517e87666e39fDevang Patel 608cd520b187a222bf99d4238590e6517e87666e39fDevang Patel PMDataManager &DM = PRequired->getResolver()->getPMDataManager(); 609cd520b187a222bf99d4238590e6517e87666e39fDevang Patel RDepth = DM.getDepth(); 610cd520b187a222bf99d4238590e6517e87666e39fDevang Patel 611e16634065021e36ae31f074f623a636924d6b8d1Devang Patel if (PDepth == RDepth) 612e16634065021e36ae31f074f623a636924d6b8d1Devang Patel LastUses.push_back(PRequired); 613e16634065021e36ae31f074f623a636924d6b8d1Devang Patel else if (PDepth > RDepth) { 614e16634065021e36ae31f074f623a636924d6b8d1Devang Patel // Let the parent claim responsibility of last use 615ef89c5594aaa5b97f303ba0de99940b79f2c0e0eDevang Patel TransferLastUses.push_back(PRequired); 616e16634065021e36ae31f074f623a636924d6b8d1Devang Patel } else { 617e16634065021e36ae31f074f623a636924d6b8d1Devang Patel // Note : This feature is not yet implemented 618e16634065021e36ae31f074f623a636924d6b8d1Devang Patel assert (0 && 619e16634065021e36ae31f074f623a636924d6b8d1Devang Patel "Unable to handle Pass that requires lower level Analysis pass"); 620e16634065021e36ae31f074f623a636924d6b8d1Devang Patel } 621e16634065021e36ae31f074f623a636924d6b8d1Devang Patel } 622e16634065021e36ae31f074f623a636924d6b8d1Devang Patel 6233f5ecd7eb5526f75b4c36012b5b5194c69187a56Devang Patel // Set P as P's last user until someone starts using P. 6243f5ecd7eb5526f75b4c36012b5b5194c69187a56Devang Patel // However, if P is a Pass Manager then it does not need 6253f5ecd7eb5526f75b4c36012b5b5194c69187a56Devang Patel // to record its last user. 6268df87095fc33af80e12fb883a6ccf8463518b8e2Devang Patel if (!dynamic_cast<PMDataManager *>(P)) 6273f5ecd7eb5526f75b4c36012b5b5194c69187a56Devang Patel LastUses.push_back(P); 6288df87095fc33af80e12fb883a6ccf8463518b8e2Devang Patel TPM->setLastUser(LastUses, P); 629e16634065021e36ae31f074f623a636924d6b8d1Devang Patel 630cf5fb2b614a7fea4565e405c81a3ae8037d78f7bDevang Patel if (!TransferLastUses.empty()) { 631cf5fb2b614a7fea4565e405c81a3ae8037d78f7bDevang Patel Pass *My_PM = dynamic_cast<Pass *>(this); 632cf5fb2b614a7fea4565e405c81a3ae8037d78f7bDevang Patel TPM->setLastUser(TransferLastUses, My_PM); 633cf5fb2b614a7fea4565e405c81a3ae8037d78f7bDevang Patel TransferLastUses.clear(); 634cf5fb2b614a7fea4565e405c81a3ae8037d78f7bDevang Patel } 635cf5fb2b614a7fea4565e405c81a3ae8037d78f7bDevang Patel 6360ac961d9c1c511204abfb02f5c25c92da6b75eb6Devang Patel // Take a note of analysis required and made available by this pass. 637893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel // Remove the analysis not preserved by this pass 638893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel removeNotPreservedAnalysis(P); 6390ac961d9c1c511204abfb02f5c25c92da6b75eb6Devang Patel recordAvailableAnalysis(P); 640893a5a681585cdf3b5bfff7128ea522e8a47750aDevang Patel } 641e253385b108cd946b1ac150302f246d3b218be77Devang Patel 642e253385b108cd946b1ac150302f246d3b218be77Devang Patel // Add pass 643e253385b108cd946b1ac150302f246d3b218be77Devang Patel PassVector.push_back(P); 644e253385b108cd946b1ac150302f246d3b218be77Devang Patel} 645e253385b108cd946b1ac150302f246d3b218be77Devang Patel 646c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel/// Populate RequiredPasses with the analysis pass that are required by 647c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel/// pass P. 648c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patelvoid PMDataManager::collectRequiredAnalysisPasses(std::vector<Pass *> &RP, 649c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel Pass *P) { 650c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel AnalysisUsage AnUsage; 651c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel P->getAnalysisUsage(AnUsage); 652c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel const std::vector<AnalysisID> &RequiredSet = AnUsage.getRequiredSet(); 653c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel for (std::vector<AnalysisID>::const_iterator 654c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel I = RequiredSet.begin(), E = RequiredSet.end(); 655c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel I != E; ++I) { 65669867b511c732a7fac7301977bd6e880e46439f1Devang Patel Pass *AnalysisPass = findAnalysisPass(*I, true); 657c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel assert (AnalysisPass && "Analysis pass is not available"); 658c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel RP.push_back(AnalysisPass); 659c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel } 66027aaab2bd3c220d8466b34f6b959f74e1caac69bDevang Patel 66127aaab2bd3c220d8466b34f6b959f74e1caac69bDevang Patel const std::vector<AnalysisID> &IDs = AnUsage.getRequiredTransitiveSet(); 66227aaab2bd3c220d8466b34f6b959f74e1caac69bDevang Patel for (std::vector<AnalysisID>::const_iterator I = IDs.begin(), 66327aaab2bd3c220d8466b34f6b959f74e1caac69bDevang Patel E = IDs.end(); I != E; ++I) { 66427aaab2bd3c220d8466b34f6b959f74e1caac69bDevang Patel Pass *AnalysisPass = findAnalysisPass(*I, true); 66527aaab2bd3c220d8466b34f6b959f74e1caac69bDevang Patel assert (AnalysisPass && "Analysis pass is not available"); 66627aaab2bd3c220d8466b34f6b959f74e1caac69bDevang Patel RP.push_back(AnalysisPass); 66727aaab2bd3c220d8466b34f6b959f74e1caac69bDevang Patel } 668c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel} 669c17bbb6da7e17c06c1f0ae7baa2f151db0e966d9Devang Patel 6702f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel// All Required analyses should be available to the pass as it runs! Here 6712f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel// we fill in the AnalysisImpls member of the pass so that it can 6722f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel// successfully use the getAnalysis() method to retrieve the 6732f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel// implementations it needs. 6742f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel// 675419f0e95d698109541ad730cb45ba4caca78f458Devang Patelvoid PMDataManager::initializeAnalysisImpl(Pass *P) { 6763799f97d539f6c288d169063e1b335917fafcffbDevang Patel AnalysisUsage AnUsage; 6773799f97d539f6c288d169063e1b335917fafcffbDevang Patel P->getAnalysisUsage(AnUsage); 6782f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel 6792f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel for (std::vector<const PassInfo *>::const_iterator 6802f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel I = AnUsage.getRequiredSet().begin(), 6812f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel E = AnUsage.getRequiredSet().end(); I != E; ++I) { 68269867b511c732a7fac7301977bd6e880e46439f1Devang Patel Pass *Impl = findAnalysisPass(*I, true); 6832f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel if (Impl == 0) 6842f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel assert(0 && "Analysis used but not available!"); 685cde53d3c1e9d6a2add5de847b44818fbb1d69c20Devang Patel AnalysisResolver *AR = P->getResolver(); 686298feadd7a547d50eb943c9ea15f6345a024bc9aDevang Patel AR->addAnalysisImplsPair(*I, Impl); 6872f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel } 6882f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel} 6892f42ed6b0b5161296cdd7e573b49fe631599fc97Devang Patel 69069867b511c732a7fac7301977bd6e880e46439f1Devang Patel/// Find the pass that implements Analysis AID. If desired pass is not found 69169867b511c732a7fac7301977bd6e880e46439f1Devang Patel/// then return NULL. 69269867b511c732a7fac7301977bd6e880e46439f1Devang PatelPass *PMDataManager::findAnalysisPass(AnalysisID AID, bool SearchParent) { 69369867b511c732a7fac7301977bd6e880e46439f1Devang Patel 69469867b511c732a7fac7301977bd6e880e46439f1Devang Patel // Check if AvailableAnalysis map has one entry. 69569867b511c732a7fac7301977bd6e880e46439f1Devang Patel std::map<AnalysisID, Pass*>::const_iterator I = AvailableAnalysis.find(AID); 69669867b511c732a7fac7301977bd6e880e46439f1Devang Patel 69769867b511c732a7fac7301977bd6e880e46439f1Devang Patel if (I != AvailableAnalysis.end()) 69869867b511c732a7fac7301977bd6e880e46439f1Devang Patel return I->second; 69969867b511c732a7fac7301977bd6e880e46439f1Devang Patel 70069867b511c732a7fac7301977bd6e880e46439f1Devang Patel // Search Parents through TopLevelManager 70169867b511c732a7fac7301977bd6e880e46439f1Devang Patel if (SearchParent) 70269867b511c732a7fac7301977bd6e880e46439f1Devang Patel return TPM->findAnalysisPass(AID); 70369867b511c732a7fac7301977bd6e880e46439f1Devang Patel 7045b640e7edc606059717fb9c2ebcd85302c97fc21Devang Patel return NULL; 70569867b511c732a7fac7301977bd6e880e46439f1Devang Patel} 70669867b511c732a7fac7301977bd6e880e46439f1Devang Patel 707a52035a062edf9bfbf95c92c615219b647042c17Devang Patel// Print list of passes that are last used by P. 708a52035a062edf9bfbf95c92c615219b647042c17Devang Patelvoid PMDataManager::dumpLastUses(Pass *P, unsigned Offset) const{ 709a52035a062edf9bfbf95c92c615219b647042c17Devang Patel 710a52035a062edf9bfbf95c92c615219b647042c17Devang Patel std::vector<Pass *> LUses; 711a52035a062edf9bfbf95c92c615219b647042c17Devang Patel 712a52035a062edf9bfbf95c92c615219b647042c17Devang Patel assert (TPM && "Top Level Manager is missing"); 713a52035a062edf9bfbf95c92c615219b647042c17Devang Patel TPM->collectLastUses(LUses, P); 714a52035a062edf9bfbf95c92c615219b647042c17Devang Patel 715a52035a062edf9bfbf95c92c615219b647042c17Devang Patel for (std::vector<Pass *>::iterator I = LUses.begin(), 716a52035a062edf9bfbf95c92c615219b647042c17Devang Patel E = LUses.end(); I != E; ++I) { 717a52035a062edf9bfbf95c92c615219b647042c17Devang Patel llvm::cerr << "--" << std::string(Offset*2, ' '); 718a52035a062edf9bfbf95c92c615219b647042c17Devang Patel (*I)->dumpPassStructure(0); 719a52035a062edf9bfbf95c92c615219b647042c17Devang Patel } 720a52035a062edf9bfbf95c92c615219b647042c17Devang Patel} 721a52035a062edf9bfbf95c92c615219b647042c17Devang Patel 722a52035a062edf9bfbf95c92c615219b647042c17Devang Patelvoid PMDataManager::dumpPassArguments() const { 723a52035a062edf9bfbf95c92c615219b647042c17Devang Patel for(std::vector<Pass *>::const_iterator I = PassVector.begin(), 724a52035a062edf9bfbf95c92c615219b647042c17Devang Patel E = PassVector.end(); I != E; ++I) { 725a52035a062edf9bfbf95c92c615219b647042c17Devang Patel if (PMDataManager *PMD = dynamic_cast<PMDataManager *>(*I)) 726a52035a062edf9bfbf95c92c615219b647042c17Devang Patel PMD->dumpPassArguments(); 727a52035a062edf9bfbf95c92c615219b647042c17Devang Patel else 728a52035a062edf9bfbf95c92c615219b647042c17Devang Patel if (const PassInfo *PI = (*I)->getPassInfo()) 729a52035a062edf9bfbf95c92c615219b647042c17Devang Patel if (!PI->isAnalysisGroup()) 730a52035a062edf9bfbf95c92c615219b647042c17Devang Patel cerr << " -" << PI->getPassArgument(); 731a52035a062edf9bfbf95c92c615219b647042c17Devang Patel } 732a52035a062edf9bfbf95c92c615219b647042c17Devang Patel} 733a52035a062edf9bfbf95c92c615219b647042c17Devang Patel 7347f99761143cdf1ad23729708e3dcaa055b189406Devang Patelvoid PMDataManager:: dumpPassInfo(Pass *P, enum PassDebuggingString S1, 7357f99761143cdf1ad23729708e3dcaa055b189406Devang Patel enum PassDebuggingString S2, 7367f99761143cdf1ad23729708e3dcaa055b189406Devang Patel std::string Msg) { 73726426949f33e5a77fbd2fa330f7df5626e8b177dDevang Patel if (PassDebugging < Executions) 738a52035a062edf9bfbf95c92c615219b647042c17Devang Patel return; 739a52035a062edf9bfbf95c92c615219b647042c17Devang Patel cerr << (void*)this << std::string(getDepth()*2+1, ' '); 7407f99761143cdf1ad23729708e3dcaa055b189406Devang Patel switch (S1) { 7417f99761143cdf1ad23729708e3dcaa055b189406Devang Patel case EXECUTION_MSG: 7427f99761143cdf1ad23729708e3dcaa055b189406Devang Patel cerr << "Executing Pass '" << P->getPassName(); 7437f99761143cdf1ad23729708e3dcaa055b189406Devang Patel break; 7447f99761143cdf1ad23729708e3dcaa055b189406Devang Patel case MODIFICATION_MSG: 7457f99761143cdf1ad23729708e3dcaa055b189406Devang Patel cerr << "' Made Modification '" << P->getPassName(); 7467f99761143cdf1ad23729708e3dcaa055b189406Devang Patel break; 7477f99761143cdf1ad23729708e3dcaa055b189406Devang Patel case FREEING_MSG: 7487f99761143cdf1ad23729708e3dcaa055b189406Devang Patel cerr << " Freeing Pass '" << P->getPassName(); 7497f99761143cdf1ad23729708e3dcaa055b189406Devang Patel break; 7507f99761143cdf1ad23729708e3dcaa055b189406Devang Patel default: 7517f99761143cdf1ad23729708e3dcaa055b189406Devang Patel break; 7527f99761143cdf1ad23729708e3dcaa055b189406Devang Patel } 7537f99761143cdf1ad23729708e3dcaa055b189406Devang Patel switch (S2) { 7547f99761143cdf1ad23729708e3dcaa055b189406Devang Patel case ON_BASICBLOCK_MSG: 7557f99761143cdf1ad23729708e3dcaa055b189406Devang Patel cerr << "' on BasicBlock '" << Msg << "...\n"; 7567f99761143cdf1ad23729708e3dcaa055b189406Devang Patel break; 7577f99761143cdf1ad23729708e3dcaa055b189406Devang Patel case ON_FUNCTION_MSG: 7587f99761143cdf1ad23729708e3dcaa055b189406Devang Patel cerr << "' on Function '" << Msg << "...\n"; 7597f99761143cdf1ad23729708e3dcaa055b189406Devang Patel break; 7607f99761143cdf1ad23729708e3dcaa055b189406Devang Patel case ON_MODULE_MSG: 7617f99761143cdf1ad23729708e3dcaa055b189406Devang Patel cerr << "' on Module '" << Msg << "...\n"; 7627f99761143cdf1ad23729708e3dcaa055b189406Devang Patel break; 7637f99761143cdf1ad23729708e3dcaa055b189406Devang Patel case ON_LOOP_MSG: 7647f99761143cdf1ad23729708e3dcaa055b189406Devang Patel cerr << "' on Loop " << Msg << "...\n"; 7657f99761143cdf1ad23729708e3dcaa055b189406Devang Patel break; 7667f99761143cdf1ad23729708e3dcaa055b189406Devang Patel case ON_CG_MSG: 7677f99761143cdf1ad23729708e3dcaa055b189406Devang Patel cerr << "' on Call Graph " << Msg << "...\n"; 7687f99761143cdf1ad23729708e3dcaa055b189406Devang Patel break; 7697f99761143cdf1ad23729708e3dcaa055b189406Devang Patel default: 7707f99761143cdf1ad23729708e3dcaa055b189406Devang Patel break; 7717f99761143cdf1ad23729708e3dcaa055b189406Devang Patel } 772a52035a062edf9bfbf95c92c615219b647042c17Devang Patel} 773a52035a062edf9bfbf95c92c615219b647042c17Devang Patel 774a52035a062edf9bfbf95c92c615219b647042c17Devang Patelvoid PMDataManager::dumpAnalysisSetInfo(const char *Msg, Pass *P, 775a52035a062edf9bfbf95c92c615219b647042c17Devang Patel const std::vector<AnalysisID> &Set) 776a52035a062edf9bfbf95c92c615219b647042c17Devang Patel const { 77726426949f33e5a77fbd2fa330f7df5626e8b177dDevang Patel if (PassDebugging >= Details && !Set.empty()) { 778a52035a062edf9bfbf95c92c615219b647042c17Devang Patel cerr << (void*)P << std::string(getDepth()*2+3, ' ') << Msg << " Analyses:"; 779a52035a062edf9bfbf95c92c615219b647042c17Devang Patel for (unsigned i = 0; i != Set.size(); ++i) { 780a52035a062edf9bfbf95c92c615219b647042c17Devang Patel if (i) cerr << ","; 781a52035a062edf9bfbf95c92c615219b647042c17Devang Patel cerr << " " << Set[i]->getPassName(); 782a52035a062edf9bfbf95c92c615219b647042c17Devang Patel } 783a52035a062edf9bfbf95c92c615219b647042c17Devang Patel cerr << "\n"; 784a52035a062edf9bfbf95c92c615219b647042c17Devang Patel } 785a52035a062edf9bfbf95c92c615219b647042c17Devang Patel} 786f3dc6d9f95d4ba7756105154df4a8075bbbcf931Devang Patel 787ab7752c1496c2913793305ba4b989a551c5617e1Devang Patel// Destructor 788ab7752c1496c2913793305ba4b989a551c5617e1Devang PatelPMDataManager::~PMDataManager() { 789ab7752c1496c2913793305ba4b989a551c5617e1Devang Patel 790ab7752c1496c2913793305ba4b989a551c5617e1Devang Patel for (std::vector<Pass *>::iterator I = PassVector.begin(), 791ab7752c1496c2913793305ba4b989a551c5617e1Devang Patel E = PassVector.end(); I != E; ++I) 792ab7752c1496c2913793305ba4b989a551c5617e1Devang Patel delete *I; 793ab7752c1496c2913793305ba4b989a551c5617e1Devang Patel 794ab7752c1496c2913793305ba4b989a551c5617e1Devang Patel PassVector.clear(); 795ab7752c1496c2913793305ba4b989a551c5617e1Devang Patel} 796ab7752c1496c2913793305ba4b989a551c5617e1Devang Patel 797f3dc6d9f95d4ba7756105154df4a8075bbbcf931Devang Patel//===----------------------------------------------------------------------===// 798f3dc6d9f95d4ba7756105154df4a8075bbbcf931Devang Patel// NOTE: Is this the right place to define this method ? 799f3dc6d9f95d4ba7756105154df4a8075bbbcf931Devang Patel// getAnalysisToUpdate - Return an analysis result or null if it doesn't exist 800cde53d3c1e9d6a2add5de847b44818fbb1d69c20Devang PatelPass *AnalysisResolver::getAnalysisToUpdate(AnalysisID ID, bool dir) const { 801f3dc6d9f95d4ba7756105154df4a8075bbbcf931Devang Patel return PM.findAnalysisPass(ID, dir); 802f3dc6d9f95d4ba7756105154df4a8075bbbcf931Devang Patel} 803f3dc6d9f95d4ba7756105154df4a8075bbbcf931Devang Patel 80406e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel//===----------------------------------------------------------------------===// 8055f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel// BBPassManager implementation 80655fd43f90913676682487f89f27c756adb827f66Devang Patel 80755fd43f90913676682487f89f27c756adb827f66Devang Patel/// Execute all of the passes scheduled for execution by invoking 80855fd43f90913676682487f89f27c756adb827f66Devang Patel/// runOnBasicBlock method. Keep track of whether any of the passes modifies 80955fd43f90913676682487f89f27c756adb827f66Devang Patel/// the function, and if so, return true. 81055fd43f90913676682487f89f27c756adb827f66Devang Patelbool 8115f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang PatelBBPassManager::runOnFunction(Function &F) { 81255fd43f90913676682487f89f27c756adb827f66Devang Patel 8135cbf985dcbc89fba3208e7baf8b6f488b06d3ec9Reid Spencer if (F.isDeclaration()) 8141fbe2c9964d57b2a58235541175f069ae491a95eDevang Patel return false; 8151fbe2c9964d57b2a58235541175f069ae491a95eDevang Patel 8163b14fbe300b96c353a9abfadf481b64324f17375Devang Patel bool Changed = doInitialization(F); 817c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 81855fd43f90913676682487f89f27c756adb827f66Devang Patel for (Function::iterator I = F.begin(), E = F.end(); I != E; ++I) 8191554c8545651350569f08dc7370189da1a7e5814Devang Patel for (unsigned Index = 0; Index < getNumContainedPasses(); ++Index) { 8201554c8545651350569f08dc7370189da1a7e5814Devang Patel BasicBlockPass *BP = getContainedPass(Index); 821017b5d969b12119a88463fe2451f20ca9214c4ffDevang Patel AnalysisUsage AnUsage; 8221554c8545651350569f08dc7370189da1a7e5814Devang Patel BP->getAnalysisUsage(AnUsage); 823017b5d969b12119a88463fe2451f20ca9214c4ffDevang Patel 8247f99761143cdf1ad23729708e3dcaa055b189406Devang Patel dumpPassInfo(BP, EXECUTION_MSG, ON_BASICBLOCK_MSG, (*I).getName()); 8251554c8545651350569f08dc7370189da1a7e5814Devang Patel dumpAnalysisSetInfo("Required", BP, AnUsage.getRequiredSet()); 826017b5d969b12119a88463fe2451f20ca9214c4ffDevang Patel 8271554c8545651350569f08dc7370189da1a7e5814Devang Patel initializeAnalysisImpl(BP); 828693a74e4ee34e2058dab7121c17c98ec59258a8aDevang Patel 8291554c8545651350569f08dc7370189da1a7e5814Devang Patel if (TheTimeInfo) TheTimeInfo->passStarted(BP); 83055fd43f90913676682487f89f27c756adb827f66Devang Patel Changed |= BP->runOnBasicBlock(*I); 8311554c8545651350569f08dc7370189da1a7e5814Devang Patel if (TheTimeInfo) TheTimeInfo->passEnded(BP); 832693a74e4ee34e2058dab7121c17c98ec59258a8aDevang Patel 8337f99761143cdf1ad23729708e3dcaa055b189406Devang Patel if (Changed) 8347f99761143cdf1ad23729708e3dcaa055b189406Devang Patel dumpPassInfo(BP, MODIFICATION_MSG, ON_BASICBLOCK_MSG, (*I).getName()); 8351554c8545651350569f08dc7370189da1a7e5814Devang Patel dumpAnalysisSetInfo("Preserved", BP, AnUsage.getPreservedSet()); 836693a74e4ee34e2058dab7121c17c98ec59258a8aDevang Patel 8371554c8545651350569f08dc7370189da1a7e5814Devang Patel removeNotPreservedAnalysis(BP); 8381554c8545651350569f08dc7370189da1a7e5814Devang Patel recordAvailableAnalysis(BP); 8397f99761143cdf1ad23729708e3dcaa055b189406Devang Patel removeDeadPasses(BP, (*I).getName(), ON_BASICBLOCK_MSG); 8407f99761143cdf1ad23729708e3dcaa055b189406Devang Patel 84155fd43f90913676682487f89f27c756adb827f66Devang Patel } 8421a8038636c2998e37f2130b0ab89a3686d9c1f48Devang Patel return Changed |= doFinalization(F); 84355fd43f90913676682487f89f27c756adb827f66Devang Patel} 84455fd43f90913676682487f89f27c756adb827f66Devang Patel 845964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel// Implement doInitialization and doFinalization 8465f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patelinline bool BBPassManager::doInitialization(Module &M) { 847964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel bool Changed = false; 848964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 8491554c8545651350569f08dc7370189da1a7e5814Devang Patel for (unsigned Index = 0; Index < getNumContainedPasses(); ++Index) { 8501554c8545651350569f08dc7370189da1a7e5814Devang Patel BasicBlockPass *BP = getContainedPass(Index); 851964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel Changed |= BP->doInitialization(M); 852964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel } 853964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 854964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel return Changed; 855964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel} 856964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 8575f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patelinline bool BBPassManager::doFinalization(Module &M) { 858964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel bool Changed = false; 859964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 8601554c8545651350569f08dc7370189da1a7e5814Devang Patel for (unsigned Index = 0; Index < getNumContainedPasses(); ++Index) { 8611554c8545651350569f08dc7370189da1a7e5814Devang Patel BasicBlockPass *BP = getContainedPass(Index); 862964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel Changed |= BP->doFinalization(M); 863964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel } 864964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 865964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel return Changed; 866964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel} 867964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 8685f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patelinline bool BBPassManager::doInitialization(Function &F) { 869964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel bool Changed = false; 870964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 8711554c8545651350569f08dc7370189da1a7e5814Devang Patel for (unsigned Index = 0; Index < getNumContainedPasses(); ++Index) { 8721554c8545651350569f08dc7370189da1a7e5814Devang Patel BasicBlockPass *BP = getContainedPass(Index); 873964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel Changed |= BP->doInitialization(F); 874964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel } 875964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 876964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel return Changed; 877964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel} 878964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 8795f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patelinline bool BBPassManager::doFinalization(Function &F) { 880964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel bool Changed = false; 881964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 8821554c8545651350569f08dc7370189da1a7e5814Devang Patel for (unsigned Index = 0; Index < getNumContainedPasses(); ++Index) { 8831554c8545651350569f08dc7370189da1a7e5814Devang Patel BasicBlockPass *BP = getContainedPass(Index); 884964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel Changed |= BP->doFinalization(F); 885964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel } 886964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 887964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel return Changed; 888964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel} 889964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 890964e45e60769ccdb4ee0230a179f84f37f6c371aDevang Patel 89106e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel//===----------------------------------------------------------------------===// 8923162691f69f85f740bc28f3ddca39b166d35187cDevang Patel// FunctionPassManager implementation 89306e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel 894c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// Create new Function pass manager 8953162691f69f85f740bc28f3ddca39b166d35187cDevang PatelFunctionPassManager::FunctionPassManager(ModuleProvider *P) { 8965f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel FPM = new FunctionPassManagerImpl(0); 897dff33ef8e863241193463fd0129657c5ebce4d58Devang Patel // FPM is the top level manager. 898dff33ef8e863241193463fd0129657c5ebce4d58Devang Patel FPM->setTopLevelManager(FPM); 899b920bd85adba95553568cef6a7078ee2509ab804Devang Patel 900b920bd85adba95553568cef6a7078ee2509ab804Devang Patel PMDataManager *PMD = dynamic_cast<PMDataManager *>(FPM); 901cde53d3c1e9d6a2add5de847b44818fbb1d69c20Devang Patel AnalysisResolver *AR = new AnalysisResolver(*PMD); 902b920bd85adba95553568cef6a7078ee2509ab804Devang Patel FPM->setResolver(AR); 903b920bd85adba95553568cef6a7078ee2509ab804Devang Patel 904cc132cd9feef765fe70284183c0f997b4faa5483Devang Patel MP = P; 905cc132cd9feef765fe70284183c0f997b4faa5483Devang Patel} 906cc132cd9feef765fe70284183c0f997b4faa5483Devang Patel 9073162691f69f85f740bc28f3ddca39b166d35187cDevang PatelFunctionPassManager::~FunctionPassManager() { 90837a6f7966c39f69a92419d37949a94a758c29e90Devang Patel delete FPM; 90937a6f7966c39f69a92419d37949a94a758c29e90Devang Patel} 91037a6f7966c39f69a92419d37949a94a758c29e90Devang Patel 911c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// add - Add a pass to the queue of passes to run. This passes 912c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// ownership of the Pass to the PassManager. When the 913c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// PassManager_X is destroyed, the pass will be destroyed as well, so 914c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// there is no need to delete the pass. (TODO delete passes.) 915c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel/// This implies that all passes MUST be allocated with 'new'. 9163162691f69f85f740bc28f3ddca39b166d35187cDevang Patelvoid FunctionPassManager::add(Pass *P) { 917c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel FPM->add(P); 918c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel} 919c63592b19ecd54a1318a19d87b5c0bd85f172a4fDevang Patel 920214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel/// run - Execute all of the passes scheduled for execution. Keep 921214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel/// track of whether any of the passes modifies the function, and if 922214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel/// so, return true. 923214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel/// 9243162691f69f85f740bc28f3ddca39b166d35187cDevang Patelbool FunctionPassManager::run(Function &F) { 925214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel std::string errstr; 926214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel if (MP->materializeFunction(&F, &errstr)) { 927e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling cerr << "Error reading bytecode file: " << errstr << "\n"; 928214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel abort(); 929214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel } 930c475692c5ee2f9c0c6988b7ec28768ef6690bfb0Devang Patel return FPM->run(F); 931214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel} 932214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel 933214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel 9343799f97d539f6c288d169063e1b335917fafcffbDevang Patel/// doInitialization - Run all of the initializers for the function passes. 9353799f97d539f6c288d169063e1b335917fafcffbDevang Patel/// 9363162691f69f85f740bc28f3ddca39b166d35187cDevang Patelbool FunctionPassManager::doInitialization() { 9373799f97d539f6c288d169063e1b335917fafcffbDevang Patel return FPM->doInitialization(*MP->getModule()); 9383799f97d539f6c288d169063e1b335917fafcffbDevang Patel} 9393799f97d539f6c288d169063e1b335917fafcffbDevang Patel 9403799f97d539f6c288d169063e1b335917fafcffbDevang Patel/// doFinalization - Run all of the initializers for the function passes. 9413799f97d539f6c288d169063e1b335917fafcffbDevang Patel/// 9423162691f69f85f740bc28f3ddca39b166d35187cDevang Patelbool FunctionPassManager::doFinalization() { 9433799f97d539f6c288d169063e1b335917fafcffbDevang Patel return FPM->doFinalization(*MP->getModule()); 9443799f97d539f6c288d169063e1b335917fafcffbDevang Patel} 9453799f97d539f6c288d169063e1b335917fafcffbDevang Patel 94606e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel//===----------------------------------------------------------------------===// 9475f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel// FunctionPassManagerImpl implementation 9485f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel// 9495f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patelinline bool FunctionPassManagerImpl::doInitialization(Module &M) { 9505f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel bool Changed = false; 9515f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel 9525f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel for (unsigned Index = 0; Index < getNumContainedManagers(); ++Index) { 9535f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel FPPassManager *FP = getContainedManager(Index); 9545f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel Changed |= FP->doInitialization(M); 9555f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel } 9565f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel 9575f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel return Changed; 9585f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel} 9595f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel 9605f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patelinline bool FunctionPassManagerImpl::doFinalization(Module &M) { 9615f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel bool Changed = false; 9625f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel 9635f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel for (unsigned Index = 0; Index < getNumContainedManagers(); ++Index) { 9645f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel FPPassManager *FP = getContainedManager(Index); 9655f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel Changed |= FP->doFinalization(M); 9665f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel } 9675f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel 9685f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel return Changed; 9695f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel} 9705f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel 9715f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel// Execute all the passes managed by this top level manager. 9725f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel// Return true if any function is modified by a pass. 9735f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patelbool FunctionPassManagerImpl::run(Function &F) { 9745f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel 9755f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel bool Changed = false; 9765f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel 9775f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel TimingInfo::createTheTimeInfo(); 9785f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel 9795f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel dumpArguments(); 9805f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel dumpPasses(); 9815f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel 9821336a6bf06e64a096217628d2cc9644e48a5d7d6Devang Patel initializeAllAnalysisInfo(); 9835f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel for (unsigned Index = 0; Index < getNumContainedManagers(); ++Index) { 9845f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel FPPassManager *FP = getContainedManager(Index); 9855f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel Changed |= FP->runOnFunction(F); 9865f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel } 9875f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel return Changed; 9885f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel} 9895f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel 9905f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel//===----------------------------------------------------------------------===// 9915f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel// FPPassManager implementation 992448d27cd795dc273249f123444509403f4fa4facDevang Patel 993ab7752c1496c2913793305ba4b989a551c5617e1Devang Patel/// Print passes managed by this manager 994ab7752c1496c2913793305ba4b989a551c5617e1Devang Patelvoid FPPassManager::dumpPassStructure(unsigned Offset) { 995ab7752c1496c2913793305ba4b989a551c5617e1Devang Patel llvm::cerr << std::string(Offset*2, ' ') << "FunctionPass Manager\n"; 996ab7752c1496c2913793305ba4b989a551c5617e1Devang Patel for (unsigned Index = 0; Index < getNumContainedPasses(); ++Index) { 997ab7752c1496c2913793305ba4b989a551c5617e1Devang Patel FunctionPass *FP = getContainedPass(Index); 998ab7752c1496c2913793305ba4b989a551c5617e1Devang Patel FP->dumpPassStructure(Offset + 1); 999ab7752c1496c2913793305ba4b989a551c5617e1Devang Patel dumpLastUses(FP, Offset+1); 1000ab7752c1496c2913793305ba4b989a551c5617e1Devang Patel } 1001ab7752c1496c2913793305ba4b989a551c5617e1Devang Patel} 1002ab7752c1496c2913793305ba4b989a551c5617e1Devang Patel 1003ab7752c1496c2913793305ba4b989a551c5617e1Devang Patel 1004448d27cd795dc273249f123444509403f4fa4facDevang Patel/// Execute all of the passes scheduled for execution by invoking 1005448d27cd795dc273249f123444509403f4fa4facDevang Patel/// runOnFunction method. Keep track of whether any of the passes modifies 1006448d27cd795dc273249f123444509403f4fa4facDevang Patel/// the function, and if so, return true. 10075f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patelbool FPPassManager::runOnFunction(Function &F) { 1008214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel 1009214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel bool Changed = false; 10101fbe2c9964d57b2a58235541175f069ae491a95eDevang Patel 10115cbf985dcbc89fba3208e7baf8b6f488b06d3ec9Reid Spencer if (F.isDeclaration()) 10121fbe2c9964d57b2a58235541175f069ae491a95eDevang Patel return false; 10131fbe2c9964d57b2a58235541175f069ae491a95eDevang Patel 10141554c8545651350569f08dc7370189da1a7e5814Devang Patel for (unsigned Index = 0; Index < getNumContainedPasses(); ++Index) { 10151554c8545651350569f08dc7370189da1a7e5814Devang Patel FunctionPass *FP = getContainedPass(Index); 10161554c8545651350569f08dc7370189da1a7e5814Devang Patel 1017017b5d969b12119a88463fe2451f20ca9214c4ffDevang Patel AnalysisUsage AnUsage; 10181554c8545651350569f08dc7370189da1a7e5814Devang Patel FP->getAnalysisUsage(AnUsage); 1019693a74e4ee34e2058dab7121c17c98ec59258a8aDevang Patel 10207f99761143cdf1ad23729708e3dcaa055b189406Devang Patel dumpPassInfo(FP, EXECUTION_MSG, ON_FUNCTION_MSG, F.getName()); 10211554c8545651350569f08dc7370189da1a7e5814Devang Patel dumpAnalysisSetInfo("Required", FP, AnUsage.getRequiredSet()); 1022693a74e4ee34e2058dab7121c17c98ec59258a8aDevang Patel 10231554c8545651350569f08dc7370189da1a7e5814Devang Patel initializeAnalysisImpl(FP); 10248e58a1b17bb57e6ffa187a0ec758f9a1bed7685bDevang Patel 10251554c8545651350569f08dc7370189da1a7e5814Devang Patel if (TheTimeInfo) TheTimeInfo->passStarted(FP); 1026214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel Changed |= FP->runOnFunction(F); 10271554c8545651350569f08dc7370189da1a7e5814Devang Patel if (TheTimeInfo) TheTimeInfo->passEnded(FP); 1028693a74e4ee34e2058dab7121c17c98ec59258a8aDevang Patel 10297f99761143cdf1ad23729708e3dcaa055b189406Devang Patel if (Changed) 10307f99761143cdf1ad23729708e3dcaa055b189406Devang Patel dumpPassInfo(FP, MODIFICATION_MSG, ON_FUNCTION_MSG, F.getName()); 10311554c8545651350569f08dc7370189da1a7e5814Devang Patel dumpAnalysisSetInfo("Preserved", FP, AnUsage.getPreservedSet()); 1032693a74e4ee34e2058dab7121c17c98ec59258a8aDevang Patel 10331554c8545651350569f08dc7370189da1a7e5814Devang Patel removeNotPreservedAnalysis(FP); 10341554c8545651350569f08dc7370189da1a7e5814Devang Patel recordAvailableAnalysis(FP); 10357f99761143cdf1ad23729708e3dcaa055b189406Devang Patel removeDeadPasses(FP, F.getName(), ON_FUNCTION_MSG); 1036214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel } 1037214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel return Changed; 1038214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel} 1039214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel 10405f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patelbool FPPassManager::runOnModule(Module &M) { 1041214ca23aef8bd408c4ee4ce28ba93d57d2416587Devang Patel 10425f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel bool Changed = doInitialization(M); 10435f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel 10445f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel for(Module::iterator I = M.begin(), E = M.end(); I != E; ++I) 10455f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel this->runOnFunction(*I); 10465f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel 10475f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel return Changed |= doFinalization(M); 10485f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel} 10495f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel 10505f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patelinline bool FPPassManager::doInitialization(Module &M) { 10513799f97d539f6c288d169063e1b335917fafcffbDevang Patel bool Changed = false; 10523799f97d539f6c288d169063e1b335917fafcffbDevang Patel 10531554c8545651350569f08dc7370189da1a7e5814Devang Patel for (unsigned Index = 0; Index < getNumContainedPasses(); ++Index) { 10541554c8545651350569f08dc7370189da1a7e5814Devang Patel FunctionPass *FP = getContainedPass(Index); 10553799f97d539f6c288d169063e1b335917fafcffbDevang Patel Changed |= FP->doInitialization(M); 10563799f97d539f6c288d169063e1b335917fafcffbDevang Patel } 10573799f97d539f6c288d169063e1b335917fafcffbDevang Patel 10583799f97d539f6c288d169063e1b335917fafcffbDevang Patel return Changed; 10593799f97d539f6c288d169063e1b335917fafcffbDevang Patel} 10603799f97d539f6c288d169063e1b335917fafcffbDevang Patel 10615f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patelinline bool FPPassManager::doFinalization(Module &M) { 10623799f97d539f6c288d169063e1b335917fafcffbDevang Patel bool Changed = false; 10633799f97d539f6c288d169063e1b335917fafcffbDevang Patel 10641554c8545651350569f08dc7370189da1a7e5814Devang Patel for (unsigned Index = 0; Index < getNumContainedPasses(); ++Index) { 10651554c8545651350569f08dc7370189da1a7e5814Devang Patel FunctionPass *FP = getContainedPass(Index); 10663799f97d539f6c288d169063e1b335917fafcffbDevang Patel Changed |= FP->doFinalization(M); 10673799f97d539f6c288d169063e1b335917fafcffbDevang Patel } 10683799f97d539f6c288d169063e1b335917fafcffbDevang Patel 10693799f97d539f6c288d169063e1b335917fafcffbDevang Patel return Changed; 10703799f97d539f6c288d169063e1b335917fafcffbDevang Patel} 10713799f97d539f6c288d169063e1b335917fafcffbDevang Patel 107206e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel//===----------------------------------------------------------------------===// 10735f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel// MPPassManager implementation 107492c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 107592c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel/// Execute all of the passes scheduled for execution by invoking 107692c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel/// runOnModule method. Keep track of whether any of the passes modifies 107792c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel/// the module, and if so, return true. 107892c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patelbool 10795f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang PatelMPPassManager::runOnModule(Module &M) { 108092c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel bool Changed = false; 1081c1d6e1fc9c3a47529f417026df652f466ce67851Devang Patel 10821554c8545651350569f08dc7370189da1a7e5814Devang Patel for (unsigned Index = 0; Index < getNumContainedPasses(); ++Index) { 10831554c8545651350569f08dc7370189da1a7e5814Devang Patel ModulePass *MP = getContainedPass(Index); 10841554c8545651350569f08dc7370189da1a7e5814Devang Patel 1085017b5d969b12119a88463fe2451f20ca9214c4ffDevang Patel AnalysisUsage AnUsage; 10861554c8545651350569f08dc7370189da1a7e5814Devang Patel MP->getAnalysisUsage(AnUsage); 1087693a74e4ee34e2058dab7121c17c98ec59258a8aDevang Patel 10887f99761143cdf1ad23729708e3dcaa055b189406Devang Patel dumpPassInfo(MP, EXECUTION_MSG, ON_MODULE_MSG, M.getModuleIdentifier()); 10891554c8545651350569f08dc7370189da1a7e5814Devang Patel dumpAnalysisSetInfo("Required", MP, AnUsage.getRequiredSet()); 1090693a74e4ee34e2058dab7121c17c98ec59258a8aDevang Patel 10911554c8545651350569f08dc7370189da1a7e5814Devang Patel initializeAnalysisImpl(MP); 10928e58a1b17bb57e6ffa187a0ec758f9a1bed7685bDevang Patel 10931554c8545651350569f08dc7370189da1a7e5814Devang Patel if (TheTimeInfo) TheTimeInfo->passStarted(MP); 109492c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel Changed |= MP->runOnModule(M); 10951554c8545651350569f08dc7370189da1a7e5814Devang Patel if (TheTimeInfo) TheTimeInfo->passEnded(MP); 1096693a74e4ee34e2058dab7121c17c98ec59258a8aDevang Patel 10977f99761143cdf1ad23729708e3dcaa055b189406Devang Patel if (Changed) 10987f99761143cdf1ad23729708e3dcaa055b189406Devang Patel dumpPassInfo(MP, MODIFICATION_MSG, ON_MODULE_MSG, 10997f99761143cdf1ad23729708e3dcaa055b189406Devang Patel M.getModuleIdentifier()); 11001554c8545651350569f08dc7370189da1a7e5814Devang Patel dumpAnalysisSetInfo("Preserved", MP, AnUsage.getPreservedSet()); 1101017b5d969b12119a88463fe2451f20ca9214c4ffDevang Patel 11021554c8545651350569f08dc7370189da1a7e5814Devang Patel removeNotPreservedAnalysis(MP); 11031554c8545651350569f08dc7370189da1a7e5814Devang Patel recordAvailableAnalysis(MP); 11047f99761143cdf1ad23729708e3dcaa055b189406Devang Patel removeDeadPasses(MP, M.getModuleIdentifier(), ON_MODULE_MSG); 110592c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel } 110692c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel return Changed; 110792c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel} 110892c45eebf77de5d6ee84a3f18f560b83cb68e720Devang Patel 110906e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel//===----------------------------------------------------------------------===// 111006e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel// PassManagerImpl implementation 111137a6f7966c39f69a92419d37949a94a758c29e90Devang Patel// 1112b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel/// run - Execute all of the passes scheduled for execution. Keep track of 1113b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel/// whether any of the passes modifies the module, and if so, return true. 11145f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patelbool PassManagerImpl::run(Module &M) { 1115b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel 1116b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel bool Changed = false; 111745dc02d6f97447785ee7ffe08c36a34bc8921b0bDevang Patel 11188e58a1b17bb57e6ffa187a0ec758f9a1bed7685bDevang Patel TimingInfo::createTheTimeInfo(); 11198e58a1b17bb57e6ffa187a0ec758f9a1bed7685bDevang Patel 1120c32cf54101ecaf336d161fecd58667870149169cDevang Patel dumpArguments(); 11215f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel dumpPasses(); 112245dc02d6f97447785ee7ffe08c36a34bc8921b0bDevang Patel 11231336a6bf06e64a096217628d2cc9644e48a5d7d6Devang Patel initializeAllAnalysisInfo(); 11245f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel for (unsigned Index = 0; Index < getNumContainedManagers(); ++Index) { 11255f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel MPPassManager *MP = getContainedManager(Index); 1126a083e94f7971ddafb817b1bcd86992d9fc4d8f9eDevang Patel Changed |= MP->runOnModule(M); 1127b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel } 1128b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel return Changed; 1129b30803bc17a5be655b7c4ef356e75ae5524b0931Devang Patel} 11305a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 113106e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel//===----------------------------------------------------------------------===// 113206e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel// PassManager implementation 113306e86561a5261a59f5c391d5cc5cb4aa38dca83cDevang Patel 11345a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// Create new pass manager 11353162691f69f85f740bc28f3ddca39b166d35187cDevang PatelPassManager::PassManager() { 11365f4ddf517f29cfc91c327c33f6d3c0f157bc5bb5Devang Patel PM = new PassManagerImpl(0); 1137dff33ef8e863241193463fd0129657c5ebce4d58Devang Patel // PM is the top level manager 1138dff33ef8e863241193463fd0129657c5ebce4d58Devang Patel PM->setTopLevelManager(PM); 11395a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel} 11405a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 11413162691f69f85f740bc28f3ddca39b166d35187cDevang PatelPassManager::~PassManager() { 114237a6f7966c39f69a92419d37949a94a758c29e90Devang Patel delete PM; 114337a6f7966c39f69a92419d37949a94a758c29e90Devang Patel} 114437a6f7966c39f69a92419d37949a94a758c29e90Devang Patel 11455a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// add - Add a pass to the queue of passes to run. This passes ownership of 11465a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// the Pass to the PassManager. When the PassManager is destroyed, the pass 11475a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// will be destroyed as well, so there is no need to delete the pass. This 11485a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// implies that all passes MUST be allocated with 'new'. 11495a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patelvoid 11503162691f69f85f740bc28f3ddca39b166d35187cDevang PatelPassManager::add(Pass *P) { 11515a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel PM->add(P); 11525a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel} 11535a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 11545a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// run - Execute all of the passes scheduled for execution. Keep track of 11555a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel/// whether any of the passes modifies the module, and if so, return true. 11565a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patelbool 11573162691f69f85f740bc28f3ddca39b166d35187cDevang PatelPassManager::run(Module &M) { 11585a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel return PM->run(M); 11595a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel} 11605a39b2e8067450839a1a041a26e2f9d8dd07f40aDevang Patel 11618e58a1b17bb57e6ffa187a0ec758f9a1bed7685bDevang Patel//===----------------------------------------------------------------------===// 11628e58a1b17bb57e6ffa187a0ec758f9a1bed7685bDevang Patel// TimingInfo Class - This class is used to calculate information about the 11638e58a1b17bb57e6ffa187a0ec758f9a1bed7685bDevang Patel// amount of time each pass takes to execute. This only happens with 11648e58a1b17bb57e6ffa187a0ec758f9a1bed7685bDevang Patel// -time-passes is enabled on the command line. 11658e58a1b17bb57e6ffa187a0ec758f9a1bed7685bDevang Patel// 11668e58a1b17bb57e6ffa187a0ec758f9a1bed7685bDevang Patelbool llvm::TimePassesIsEnabled = false; 11678e58a1b17bb57e6ffa187a0ec758f9a1bed7685bDevang Patelstatic cl::opt<bool,true> 11688e58a1b17bb57e6ffa187a0ec758f9a1bed7685bDevang PatelEnableTiming("time-passes", cl::location(TimePassesIsEnabled), 11698e58a1b17bb57e6ffa187a0ec758f9a1bed7685bDevang Patel cl::desc("Time each pass, printing elapsed time for each on exit")); 11708e58a1b17bb57e6ffa187a0ec758f9a1bed7685bDevang Patel 11718e58a1b17bb57e6ffa187a0ec758f9a1bed7685bDevang Patel// createTheTimeInfo - This method either initializes the TheTimeInfo pointer to 11728e58a1b17bb57e6ffa187a0ec758f9a1bed7685bDevang Patel// a non null value (if the -time-passes option is enabled) or it leaves it 11738e58a1b17bb57e6ffa187a0ec758f9a1bed7685bDevang Patel// null. It may be called multiple times. 11748e58a1b17bb57e6ffa187a0ec758f9a1bed7685bDevang Patelvoid TimingInfo::createTheTimeInfo() { 11758e58a1b17bb57e6ffa187a0ec758f9a1bed7685bDevang Patel if (!TimePassesIsEnabled || TheTimeInfo) return; 11768e58a1b17bb57e6ffa187a0ec758f9a1bed7685bDevang Patel 11778e58a1b17bb57e6ffa187a0ec758f9a1bed7685bDevang Patel // Constructed the first time this is called, iff -time-passes is enabled. 11788e58a1b17bb57e6ffa187a0ec758f9a1bed7685bDevang Patel // This guarantees that the object will be constructed before static globals, 11798e58a1b17bb57e6ffa187a0ec758f9a1bed7685bDevang Patel // thus it will be destroyed before them. 11808e58a1b17bb57e6ffa187a0ec758f9a1bed7685bDevang Patel static ManagedStatic<TimingInfo> TTI; 11818e58a1b17bb57e6ffa187a0ec758f9a1bed7685bDevang Patel TheTimeInfo = &*TTI; 11828e58a1b17bb57e6ffa187a0ec758f9a1bed7685bDevang Patel} 11838e58a1b17bb57e6ffa187a0ec758f9a1bed7685bDevang Patel 1184c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel/// If TimingInfo is enabled then start pass timer. 1185c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patelvoid StartPassTimer(Pass *P) { 1186c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel if (TheTimeInfo) 1187c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel TheTimeInfo->passStarted(P); 1188c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel} 1189c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel 1190c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel/// If TimingInfo is enabled then stop pass timer. 1191c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patelvoid StopPassTimer(Pass *P) { 1192c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel if (TheTimeInfo) 1193c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel TheTimeInfo->passEnded(P); 1194c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel} 1195c874eb54ecf57f493c49934a327e0e4e49f0ff10Devang Patel 119609e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel//===----------------------------------------------------------------------===// 119709e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel// PMStack implementation 119809e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel// 119936bcb82c3f7acd7cc3a79f51102c5995db2fb723Devang Patel 120009e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel// Pop Pass Manager from the stack and clear its analysis info. 120109e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patelvoid PMStack::pop() { 120209e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel 120309e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel PMDataManager *Top = this->top(); 120409e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel Top->initializeAnalysisInfo(); 120509e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel 120609e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel S.pop_back(); 120709e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel} 120809e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel 120909e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel// Push PM on the stack and set its top level manager. 121097149737f27457b0411e49af3e4539688e29848fDevang Patelvoid PMStack::push(Pass *P) { 121109e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel 121297149737f27457b0411e49af3e4539688e29848fDevang Patel PMDataManager *Top = NULL; 121397149737f27457b0411e49af3e4539688e29848fDevang Patel PMDataManager *PM = dynamic_cast<PMDataManager *>(P); 121497149737f27457b0411e49af3e4539688e29848fDevang Patel assert (PM && "Unable to push. Pass Manager expected"); 121597149737f27457b0411e49af3e4539688e29848fDevang Patel 121697149737f27457b0411e49af3e4539688e29848fDevang Patel if (this->empty()) { 121797149737f27457b0411e49af3e4539688e29848fDevang Patel Top = PM; 121897149737f27457b0411e49af3e4539688e29848fDevang Patel } 121997149737f27457b0411e49af3e4539688e29848fDevang Patel else { 122097149737f27457b0411e49af3e4539688e29848fDevang Patel Top = this->top(); 122197149737f27457b0411e49af3e4539688e29848fDevang Patel PMTopLevelManager *TPM = Top->getTopLevelManager(); 122297149737f27457b0411e49af3e4539688e29848fDevang Patel 122397149737f27457b0411e49af3e4539688e29848fDevang Patel assert (TPM && "Unable to find top level manager"); 122497149737f27457b0411e49af3e4539688e29848fDevang Patel TPM->addIndirectPassManager(PM); 122597149737f27457b0411e49af3e4539688e29848fDevang Patel PM->setTopLevelManager(TPM); 122697149737f27457b0411e49af3e4539688e29848fDevang Patel } 122797149737f27457b0411e49af3e4539688e29848fDevang Patel 122897149737f27457b0411e49af3e4539688e29848fDevang Patel AnalysisResolver *AR = new AnalysisResolver(*Top); 122997149737f27457b0411e49af3e4539688e29848fDevang Patel P->setResolver(AR); 123097149737f27457b0411e49af3e4539688e29848fDevang Patel 123197149737f27457b0411e49af3e4539688e29848fDevang Patel S.push_back(PM); 123297149737f27457b0411e49af3e4539688e29848fDevang Patel} 123309e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel 123497149737f27457b0411e49af3e4539688e29848fDevang Patel// Dump content of the pass manager stack. 123597149737f27457b0411e49af3e4539688e29848fDevang Patelvoid PMStack::dump() { 123697149737f27457b0411e49af3e4539688e29848fDevang Patel for(std::deque<PMDataManager *>::iterator I = S.begin(), 123797149737f27457b0411e49af3e4539688e29848fDevang Patel E = S.end(); I != E; ++I) { 123897149737f27457b0411e49af3e4539688e29848fDevang Patel Pass *P = dynamic_cast<Pass *>(*I); 123997149737f27457b0411e49af3e4539688e29848fDevang Patel printf ("%s ", P->getPassName()); 124097149737f27457b0411e49af3e4539688e29848fDevang Patel } 124197149737f27457b0411e49af3e4539688e29848fDevang Patel if (!S.empty()) 124297149737f27457b0411e49af3e4539688e29848fDevang Patel printf ("\n"); 124309e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel} 124409e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel 124509e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel/// Find appropriate Module Pass Manager in the PM Stack and 124609e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel/// add self into that manager. 1247be1ffc6b8d3db7b1a9d512a1d53afd075d8e58c9Devang Patelvoid ModulePass::assignPassManager(PMStack &PMS, 1248be1ffc6b8d3db7b1a9d512a1d53afd075d8e58c9Devang Patel PassManagerType PreferredType) { 124909e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel 125009e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel // Find Module Pass Manager 125109e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel while(!PMS.empty()) { 125244b0d29802ea87d68648dec798fd564eb3cbaa32Devang Patel PassManagerType TopPMType = PMS.top()->getPassManagerType(); 125344b0d29802ea87d68648dec798fd564eb3cbaa32Devang Patel if (TopPMType == PreferredType) 125444b0d29802ea87d68648dec798fd564eb3cbaa32Devang Patel break; // We found desired pass manager 125544b0d29802ea87d68648dec798fd564eb3cbaa32Devang Patel else if (TopPMType > PMT_ModulePassManager) 125609e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel PMS.pop(); // Pop children pass managers 12576b9420e94392040fbe6b2af5e49adbcbc6b32615Devang Patel else 12586b9420e94392040fbe6b2af5e49adbcbc6b32615Devang Patel break; 125909e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel } 126009e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel 126144b0d29802ea87d68648dec798fd564eb3cbaa32Devang Patel PMS.top()->add(this); 126209e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel} 126309e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel 12649d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel/// Find appropriate Function Pass Manager or Call Graph Pass Manager 12659d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel/// in the PM Stack and add self into that manager. 1266be1ffc6b8d3db7b1a9d512a1d53afd075d8e58c9Devang Patelvoid FunctionPass::assignPassManager(PMStack &PMS, 1267be1ffc6b8d3db7b1a9d512a1d53afd075d8e58c9Devang Patel PassManagerType PreferredType) { 126809e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel 126997149737f27457b0411e49af3e4539688e29848fDevang Patel // Find Module Pass Manager (TODO : Or Call Graph Pass Manager) 127009e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel while(!PMS.empty()) { 12716b9420e94392040fbe6b2af5e49adbcbc6b32615Devang Patel if (PMS.top()->getPassManagerType() > PMT_FunctionPassManager) 12726b9420e94392040fbe6b2af5e49adbcbc6b32615Devang Patel PMS.pop(); 127309e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel else 12749d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel break; 127509e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel } 12769d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel FPPassManager *FPP = dynamic_cast<FPPassManager *>(PMS.top()); 127709e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel 12789d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel // Create new Function Pass Manager 12799d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel if (!FPP) { 12809d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel assert(!PMS.empty() && "Unable to create Function Pass Manager"); 12819d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel PMDataManager *PMD = PMS.top(); 128297149737f27457b0411e49af3e4539688e29848fDevang Patel 12839d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel // [1] Create new Function Pass Manager 12849d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel FPP = new FPPassManager(PMD->getDepth() + 1); 128597149737f27457b0411e49af3e4539688e29848fDevang Patel 12869d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel // [2] Set up new manager's top level manager 12879d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel PMTopLevelManager *TPM = PMD->getTopLevelManager(); 12889d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel TPM->addIndirectPassManager(FPP); 128997149737f27457b0411e49af3e4539688e29848fDevang Patel 12909d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel // [3] Assign manager to manage this new manager. This may create 12919d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel // and push new managers into PMS 12929d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel Pass *P = dynamic_cast<Pass *>(FPP); 1293be1ffc6b8d3db7b1a9d512a1d53afd075d8e58c9Devang Patel 1294be1ffc6b8d3db7b1a9d512a1d53afd075d8e58c9Devang Patel // If Call Graph Pass Manager is active then use it to manage 1295be1ffc6b8d3db7b1a9d512a1d53afd075d8e58c9Devang Patel // this new Function Pass manager. 1296be1ffc6b8d3db7b1a9d512a1d53afd075d8e58c9Devang Patel if (PMD->getPassManagerType() == PMT_CallGraphPassManager) 1297be1ffc6b8d3db7b1a9d512a1d53afd075d8e58c9Devang Patel P->assignPassManager(PMS, PMT_CallGraphPassManager); 1298be1ffc6b8d3db7b1a9d512a1d53afd075d8e58c9Devang Patel else 1299be1ffc6b8d3db7b1a9d512a1d53afd075d8e58c9Devang Patel P->assignPassManager(PMS); 13009d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel 13019d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel // [4] Push new manager into PMS 13029d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel PMS.push(FPP); 13039d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel } 130409e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel 13059d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel // Assign FPP as the manager of this pass. 13069d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel FPP->add(this); 130709e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel} 130809e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel 13099d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel/// Find appropriate Basic Pass Manager or Call Graph Pass Manager 13109d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel/// in the PM Stack and add self into that manager. 1311be1ffc6b8d3db7b1a9d512a1d53afd075d8e58c9Devang Patelvoid BasicBlockPass::assignPassManager(PMStack &PMS, 1312be1ffc6b8d3db7b1a9d512a1d53afd075d8e58c9Devang Patel PassManagerType PreferredType) { 131309e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel 131409e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel BBPassManager *BBP = NULL; 131509e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel 131697149737f27457b0411e49af3e4539688e29848fDevang Patel // Basic Pass Manager is a leaf pass manager. It does not handle 131797149737f27457b0411e49af3e4539688e29848fDevang Patel // any other pass manager. 131897149737f27457b0411e49af3e4539688e29848fDevang Patel if (!PMS.empty()) { 131909e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel BBP = dynamic_cast<BBPassManager *>(PMS.top()); 132009e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel } 132109e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel 13229d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel // If leaf manager is not Basic Block Pass manager then create new 13239d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel // basic Block Pass manager. 13249d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel 13259d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel if (!BBP) { 13269d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel assert(!PMS.empty() && "Unable to create BasicBlock Pass Manager"); 13279d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel PMDataManager *PMD = PMS.top(); 13289d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel 13299d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel // [1] Create new Basic Block Manager 13309d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel BBP = new BBPassManager(PMD->getDepth() + 1); 13319d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel 13329d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel // [2] Set up new manager's top level manager 13339d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel // Basic Block Pass Manager does not live by itself 13349d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel PMTopLevelManager *TPM = PMD->getTopLevelManager(); 13359d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel TPM->addIndirectPassManager(BBP); 133697149737f27457b0411e49af3e4539688e29848fDevang Patel 133797149737f27457b0411e49af3e4539688e29848fDevang Patel // [3] Assign manager to manage this new manager. This may create 133897149737f27457b0411e49af3e4539688e29848fDevang Patel // and push new managers into PMS 13399d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel Pass *P = dynamic_cast<Pass *>(BBP); 13409d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel P->assignPassManager(PMS); 1341531f01f878915fc51ccf5e1194a2dc8d73c207cdDevang Patel 13429d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel // [4] Push new manager into PMS 13439d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel PMS.push(BBP); 13449d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel } 134509e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel 13469d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel // Assign BBP as the manager of this pass. 13479d133e150faac44b8d8d1b53516cbad4d9bbf84aDevang Patel BBP->add(this); 134809e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel} 134909e6e4303f1aac10fea6860e7736c234fcbf56ccDevang Patel 1350cccd80dfa316019047f053c55f1b94f63b17c043Devang Patel 1351