std::vector<Pass *> PassVector;
};
+/// FunctionPassManager_New manages FunctionPasses and BasicBlockPassManagers.
+/// It batches all function passes and basic block pass managers together and
+/// sequence them to process one function at a time before processing next
+/// function.
+class FunctionPassManager_New:public Pass {
+public:
+ FunctionPassManager_New(ModuleProvider *P) { /* TODO */ }
+ FunctionPassManager_New() {
+ activeBBPassManager = NULL;
+ }
+ ~FunctionPassManager_New() { /* TODO */ };
+
+ /// add - Add a pass to the queue of passes to run. This passes
+ /// ownership of the Pass to the PassManager. When the
+ /// PassManager_X is destroyed, the pass will be destroyed as well, so
+ /// there is no need to delete the pass. (TODO delete passes.)
+ /// This implies that all passes MUST be allocated with 'new'.
+ void add(Pass *P) { /* TODO*/ }
+
+ /// Add pass into the pass manager queue.
+ bool addPass(Pass *P);
+
+ /// Execute all of the passes scheduled for execution. Keep
+ /// track of whether any of the passes modifies the function, and if
+ /// so, return true.
+ bool runOnModule(Module &M);
+
+private:
+ // Collection of pass that are not yet scheduled
+ std::vector<Pass *> PassVector;
+
+ // Active Pass Managers
+ BasicBlockPassManager_New *activeBBPassManager;
+};
+
} // End llvm namespace
#endif
return Changed;
}
+// FunctionPassManager_New implementation
+
+///////////////////////////////////////////////////////////////////////////////
+// FunctionPassManager
+
+/// Add pass P into the pass manager queue. If P is a BasicBlockPass then
+/// either use it into active basic block pass manager or create new basic
+/// block pass manager to handle pass P.
+bool
+FunctionPassManager_New::addPass (Pass *P) {
+
+ // If P is a BasicBlockPass then use BasicBlockPassManager_New.
+ if (BasicBlockPass *BP = dynamic_cast<BasicBlockPass*>(P)) {
+
+ if (!activeBBPassManager
+ || !activeBBPassManager->addPass(BP)) {
+
+ activeBBPassManager = new BasicBlockPassManager_New();
+
+ PassVector.push_back(activeBBPassManager);
+ assert (!activeBBPassManager->addPass(BP) &&
+ "Unable to add Pass");
+ }
+ return true;
+ }
+
+ FunctionPass *FP = dynamic_cast<FunctionPass *>(P);
+ if (!FP)
+ return false;
+
+ // TODO: Check if it suitable to manage P using this FunctionPassManager
+ // or we need another instance of BasicBlockPassManager
+
+ PassVector.push_back(FP);
+ activeBBPassManager = NULL;
+ return true;
+}
+
+/// Execute all of the passes scheduled for execution by invoking
+/// runOnFunction method. Keep track of whether any of the passes modifies
+/// the function, and if so, return true.
+bool
+FunctionPassManager_New::runOnModule(Module &M) {
+
+ bool Changed = false;
+ for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I)
+ for (std::vector<Pass *>::iterator itr = PassVector.begin(),
+ e = PassVector.end(); itr != e; ++itr) {
+ Pass *P = *itr;
+ FunctionPass *FP = dynamic_cast<FunctionPass*>(P);
+ Changed |= FP->runOnFunction(*I);
+ }
+ return Changed;
+}
+
+