LLVM  4.0.0
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RegisterScavenging.h File Reference

This file declares the machine register scavenger class. More...

#include "llvm/ADT/BitVector.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
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Classes

class  llvm::RegScavenger
 

Namespaces

 llvm
 Compute iterated dominance frontiers using a linear time algorithm.
 

Detailed Description

This file declares the machine register scavenger class.

It can provide information such as unused register at any point in a machine basic block. It also provides a mechanism to make registers available by evicting them to spill slots.

Definition in file RegisterScavenging.h.