//===- CallGraphSCCPass.h - Pass that operates BU on call graph -*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
//
// This file defines the CallGraphSCCPass class, which is used for passes which
// are implemented as bottom-up traversals on the call graph. Because there may
#include "llvm/Pass.h"
+namespace llvm {
+
class CallGraphNode;
+class CallGraph;
-struct CallGraphSCCPass : public Pass {
+struct CallGraphSCCPass : public ModulePass {
+
+ /// doInitialization - This method is called before the SCC's of the program
+ /// has been processed, allowing the pass to do initialization as necessary.
+ virtual bool doInitialization(CallGraph &CG) {
+ return false;
+ }
/// runOnSCC - This method should be implemented by the subclass to perform
/// whatever action is necessary for the specified SCC. Note that
///
virtual bool runOnSCC(const std::vector<CallGraphNode *> &SCC) = 0;
+ /// doFinalization - This method is called after the SCC's of the program has
+ /// been processed, allowing the pass to do final cleanup as necessary.
+ virtual bool doFinalization(CallGraph &CG) {
+ return false;
+ }
+
/// run - Run this pass, returning true if a modification was made to the
/// module argument. This is implemented in terms of the runOnSCC method.
///
- virtual bool run(Module &M);
+ virtual bool runOnModule(Module &M);
/// getAnalysisUsage - For this class, we declare that we require and preserve
virtual void getAnalysisUsage(AnalysisUsage &Info) const;
};
+} // End llvm namespace
+
#endif