lib/Target/ARM/Thumb2RegisterInfo.h

   1 //===- Thumb2RegisterInfo.h - Thumb-2 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 Thumb-2 implementation of the TargetRegisterInfo class.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #ifndef THUMB2REGISTERINFO_H
  15 #define THUMB2REGISTERINFO_H
  16
  17 #include "ARM.h"
  18 #include "ARMRegisterInfo.h"
  19 #include "llvm/Target/TargetRegisterInfo.h"
  20
  21 namespace llvm {
  22   class ARMSubtarget;
  23   class ARMBaseInstrInfo;
  24   class Type;
  25
  26 struct Thumb2RegisterInfo : public ARMBaseRegisterInfo {
  27 public:
  28   Thumb2RegisterInfo(const ARMBaseInstrInfo &tii, const ARMSubtarget &STI);
  29
  30   /// emitLoadConstPool - Emits a load from constpool to materialize the
  31   /// specified immediate.
  32   void emitLoadConstPool(MachineBasicBlock &MBB,
  33                          MachineBasicBlock::iterator &MBBI,
  34                          DebugLoc dl,
  35                          unsigned DestReg, unsigned SubIdx, int Val,
  36                          ARMCC::CondCodes Pred = ARMCC::AL,
  37                          unsigned PredReg = 0) const;
  38
  39   bool requiresRegisterScavenging(const MachineFunction &MF) const;
  40 };
  41 }
  42
  43 #endif // THUMB2REGISTERINFO_H