llvm-6502/lib/Target/PTX/PTXRegisterInfo.h
Justin Holewinski 6b8990df42 PTX: Handle FrameIndex nodes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140532 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-26 16:20:25 +00:00

58 lines
1.7 KiB
C++

//===- PTXRegisterInfo.h - PTX Register Information Impl --------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains the PTX implementation of the MRegisterInfo class.
//
//===----------------------------------------------------------------------===//
#ifndef PTX_REGISTER_INFO_H
#define PTX_REGISTER_INFO_H
#include "llvm/Support/ErrorHandling.h"
#include "llvm/ADT/BitVector.h"
#define GET_REGINFO_HEADER
#include "PTXGenRegisterInfo.inc"
namespace llvm {
class PTXTargetMachine;
class MachineFunction;
struct PTXRegisterInfo : public PTXGenRegisterInfo {
private:
const TargetInstrInfo &TII;
public:
PTXRegisterInfo(PTXTargetMachine &TM,
const TargetInstrInfo &tii);
virtual const unsigned
*getCalleeSavedRegs(const MachineFunction *MF = 0) const {
static const unsigned CalleeSavedRegs[] = { 0 };
return CalleeSavedRegs; // save nothing
}
virtual BitVector getReservedRegs(const MachineFunction &MF) const {
BitVector Reserved(getNumRegs());
return Reserved; // reserve no regs
}
virtual void eliminateFrameIndex(MachineBasicBlock::iterator II,
int SPAdj,
RegScavenger *RS = NULL) const;
virtual unsigned getFrameRegister(const MachineFunction &MF) const {
llvm_unreachable("PTX does not have a frame register");
return 0;
}
}; // struct PTXRegisterInfo
} // namespace llvm
#endif // PTX_REGISTER_INFO_H