#ifndef LLVM_CODEGEN_LIVEDEBUGVARIABLES_H
#define LLVM_CODEGEN_LIVEDEBUGVARIABLES_H
+#include "llvm/ADT/ArrayRef.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
namespace llvm {
+class LiveInterval;
+class VirtRegMap;
+
class LiveDebugVariables : public MachineFunctionPass {
void *pImpl;
public:
static char ID; // Pass identification, replacement for typeid
LiveDebugVariables();
+ ~LiveDebugVariables();
/// renameRegister - Move any user variables in OldReg to NewReg:SubIdx.
/// @param OldReg Old virtual register that is going away.
/// register.
void renameRegister(unsigned OldReg, unsigned NewReg, unsigned SubIdx);
+ /// splitRegister - Move any user variables in OldReg to the live ranges in
+ /// NewRegs where they are live. Mark the values as unavailable where no new
+ /// register is live.
+ void splitRegister(unsigned OldReg, ArrayRef<LiveInterval*> NewRegs);
+
/// emitDebugValues - Emit new DBG_VALUE instructions reflecting the changes
/// that happened during register allocation.
- void emitDebugValues();
+ /// @param VRM Rename virtual registers according to map.
+ void emitDebugValues(VirtRegMap *VRM);
+
+ /// dump - Print data structures to dbgs().
+ void dump();
private:
- /// runOnMachineFunction - Analyze and remove DBG_VALUE instructions.
virtual bool runOnMachineFunction(MachineFunction &);
-
+ virtual void releaseMemory();
virtual void getAnalysisUsage(AnalysisUsage &) const;
};