llvm-6502/include/llvm/PassManager.h
Chris Lattner d30efaf56e * Add a stub to FunctionPass so that subclasses can declare that they do not
modify the CFG.  It currently does nothing, but will in the future.
* Changes to make the public PassManager.h be MUCH smaller, and devoid of
  implementation details.  Now PassManager is just a Pimpl class that wraps
  PassManagerT<Module>, but lib/VMCore/Pass.cpp is now the only class that
  has to #include PassManagerT.h


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2383 91177308-0d34-0410-b5e6-96231b3b80d8
2002-04-28 20:46:05 +00:00

37 lines
1.2 KiB
C++

//===- llvm/PassManager.h - Container for Passes -----------------*- C++ -*--=//
//
// This file defines the PassManager class. This class is used to hold,
// maintain, and optimize execution of Pass's. The PassManager class ensures
// that analysis results are available before a pass runs, and that Pass's are
// destroyed when the PassManager is destroyed.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_PASSMANAGER_H
#define LLVM_PASSMANAGER_H
class Pass;
class Module;
template<class UnitType> class PassManagerT;
class PassManager {
PassManagerT<Module> *PM; // This is a straightforward Pimpl class
public:
PassManager();
~PassManager();
// add - Add a pass to the queue of passes to run. This passes ownership of
// the Pass to the PassManager. When the PassManager is destroyed, the pass
// will be destroyed as well, so there is no need to delete the pass. This
// implies that all passes MUST be allocated with 'new'.
//
void add(Pass *P);
// run - Execute all of the passes scheduled for execution. Keep track of
// whether any of the functions modifies the program, and if so, return true.
//
bool run(Module *M);
};
#endif