XCoreRegisterInfo.h revision 36b56886974eae4f9c5ebc96befd3e7bfe5de338 
1//===-- XCoreRegisterInfo.h - XCore Register Information Impl ---*- C++ -*-===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// This file contains the XCore implementation of the MRegisterInfo class.
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef XCOREREGISTERINFO_H
15#define XCOREREGISTERINFO_H
16
17#include "llvm/Target/TargetRegisterInfo.h"
18
19#define GET_REGINFO_HEADER
20#include "XCoreGenRegisterInfo.inc"
21
22namespace llvm {
23
24class TargetInstrInfo;
25
26struct XCoreRegisterInfo : public XCoreGenRegisterInfo {
27public:
28  XCoreRegisterInfo();
29
30  /// Code Generation virtual methods...
31
32  const uint16_t *getCalleeSavedRegs(const MachineFunction *MF = 0) const;
33
34  BitVector getReservedRegs(const MachineFunction &MF) const;
35
36  bool requiresRegisterScavenging(const MachineFunction &MF) const;
37
38  bool trackLivenessAfterRegAlloc(const MachineFunction &MF) const;
39
40  bool useFPForScavengingIndex(const MachineFunction &MF) const;
41
42  void eliminateFrameIndex(MachineBasicBlock::iterator II,
43                           int SPAdj, unsigned FIOperandNum,
44                           RegScavenger *RS = NULL) const;
45
46  // Debug information queries.
47  unsigned getFrameRegister(const MachineFunction &MF) const;
48
49  //! Return whether to emit frame moves
50  static bool needsFrameMoves(const MachineFunction &MF);
51};
52
53} // end namespace llvm
54
55#endif
56