diff options
| -rw-r--r-- | lib/VMCore/PassManager.cpp | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/lib/VMCore/PassManager.cpp b/lib/VMCore/PassManager.cpp index c3af45e8a6..25742f1be1 100644 --- a/lib/VMCore/PassManager.cpp +++ b/lib/VMCore/PassManager.cpp @@ -53,6 +53,13 @@ public: /// AvailableAnalysis appropriately if ProcessAnalysis is true. void addPassToManager (Pass *P, bool ProcessAnalysis = true); + /// Clear analysis vectors RequiredAnalysis and AvailableAnalysis. + /// This is used before running passes managed by the manager. + void clearAnalysis() { + RequiredAnalysis.clear(); + AvailableAnalysis.clear(); + } + inline std::vector<Pass *>::iterator passVectorBegin() { return PassVector.begin(); } @@ -311,12 +318,18 @@ bool BasicBlockPassManager_New::runOnFunction(Function &F) { bool Changed = false; + clearAnalysis(); + for (Function::iterator I = F.begin(), E = F.end(); I != E; ++I) for (std::vector<Pass *>::iterator itr = passVectorBegin(), e = passVectorEnd(); itr != e; ++itr) { Pass *P = *itr; + + noteDownAvailableAnalysis(P); BasicBlockPass *BP = dynamic_cast<BasicBlockPass*>(P); Changed |= BP->runOnBasicBlock(*I); + removeNotPreservedAnalysis(P); + removeDeadPasses(); } return Changed; } @@ -395,12 +408,18 @@ bool FunctionPassManagerImpl_New::runOnModule(Module &M) { bool Changed = false; + clearAnalysis(); + for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I) for (std::vector<Pass *>::iterator itr = passVectorBegin(), e = passVectorEnd(); itr != e; ++itr) { Pass *P = *itr; + + noteDownAvailableAnalysis(P); FunctionPass *FP = dynamic_cast<FunctionPass*>(P); Changed |= FP->runOnFunction(*I); + removeNotPreservedAnalysis(P); + removeDeadPasses(); } return Changed; } @@ -464,11 +483,17 @@ ModulePassManager_New::addPass(Pass *P) { bool ModulePassManager_New::runOnModule(Module &M) { bool Changed = false; + clearAnalysis(); + for (std::vector<Pass *>::iterator itr = passVectorBegin(), e = passVectorEnd(); itr != e; ++itr) { Pass *P = *itr; + + noteDownAvailableAnalysis(P); ModulePass *MP = dynamic_cast<ModulePass*>(P); Changed |= MP->runOnModule(M); + removeNotPreservedAnalysis(P); + removeDeadPasses(); } return Changed; } |