1 //===- llvm/PassManager.h - Container for Passes ----------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file was developed by the LLVM research group and is distributed under
6 // the University of Illinois Open Source License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file defines the PassManager class. This class is used to hold,
11 // maintain, and optimize execution of Passes. The PassManager class ensures
12 // that analysis results are available before a pass runs, and that Pass's are
13 // destroyed when the PassManager is destroyed.
15 //===----------------------------------------------------------------------===//
17 #ifndef LLVM_PASSMANAGER_H
18 #define LLVM_PASSMANAGER_H
20 #include "llvm/Pass.h"
29 class ModulePassManager;
30 class PassManagerImpl;
31 class FunctionPassManagerImpl;
33 /// PassManager manages ModulePassManagers
41 /// add - Add a pass to the queue of passes to run. This passes ownership of
42 /// the Pass to the PassManager. When the PassManager is destroyed, the pass
43 /// will be destroyed as well, so there is no need to delete the pass. This
44 /// implies that all passes MUST be allocated with 'new'.
47 /// run - Execute all of the passes scheduled for execution. Keep track of
48 /// whether any of the passes modifies the module, and if so, return true.
53 /// PassManagerImpl_New is the actual class. PassManager is just the
54 /// wraper to publish simple pass manager interface
59 /// FunctionPassManager manages FunctionPasses and BasicBlockPassManagers.
60 class FunctionPassManager {
62 explicit FunctionPassManager(ModuleProvider *P);
63 FunctionPassManager();
64 ~FunctionPassManager();
66 /// add - Add a pass to the queue of passes to run. This passes
67 /// ownership of the Pass to the PassManager. When the
68 /// PassManager_X is destroyed, the pass will be destroyed as well, so
69 /// there is no need to delete the pass. (TODO delete passes.)
70 /// This implies that all passes MUST be allocated with 'new'.
73 /// run - Execute all of the passes scheduled for execution. Keep
74 /// track of whether any of the passes modifies the function, and if
77 bool run(Function &F);
79 /// doInitialization - Run all of the initializers for the function passes.
81 bool doInitialization();
83 /// doFinalization - Run all of the initializers for the function passes.
85 bool doFinalization();
88 FunctionPassManagerImpl *FPM;
92 } // End llvm namespace