2012-02-18 13:03:15 +01:00
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//===-- PPCRegisterInfo.h - PowerPC Register Information Impl ---*- C++ -*-===//
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2005-04-22 01:30:14 +02:00
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//
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2004-08-17 06:55:41 +02:00
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// The LLVM Compiler Infrastructure
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//
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2007-12-29 21:36:04 +01:00
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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2005-04-22 01:30:14 +02:00
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//
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2004-08-17 06:55:41 +02:00
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//===----------------------------------------------------------------------===//
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//
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2008-02-10 19:45:23 +01:00
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// This file contains the PowerPC implementation of the TargetRegisterInfo
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// class.
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2004-08-17 06:55:41 +02:00
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//
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//===----------------------------------------------------------------------===//
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#ifndef POWERPC32_REGISTERINFO_H
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#define POWERPC32_REGISTERINFO_H
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2005-10-15 01:51:18 +02:00
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#include "PPC.h"
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2004-08-17 06:55:41 +02:00
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#include <map>
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2011-06-27 20:32:37 +02:00
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#define GET_REGINFO_HEADER
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#include "PPCGenRegisterInfo.inc"
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2004-08-17 06:55:41 +02:00
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namespace llvm {
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2006-07-11 02:48:23 +02:00
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class PPCSubtarget;
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2006-11-28 00:37:22 +01:00
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class TargetInstrInfo;
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2004-08-17 06:55:41 +02:00
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class Type;
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2005-10-16 07:39:50 +02:00
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class PPCRegisterInfo : public PPCGenRegisterInfo {
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2004-08-17 06:55:41 +02:00
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std::map<unsigned, unsigned> ImmToIdxMap;
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2006-07-11 02:48:23 +02:00
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const PPCSubtarget &Subtarget;
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2006-11-14 00:36:35 +01:00
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const TargetInstrInfo &TII;
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2004-08-17 06:55:41 +02:00
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public:
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2006-11-14 00:36:35 +01:00
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PPCRegisterInfo(const PPCSubtarget &SubTarget, const TargetInstrInfo &tii);
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2006-04-17 23:07:20 +02:00
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2009-02-06 18:43:24 +01:00
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/// getPointerRegClass - Return the register class to use to hold pointers.
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/// This is used for addressing modes.
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2012-05-08 00:10:26 +02:00
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virtual const TargetRegisterClass *
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getPointerRegClass(const MachineFunction &MF, unsigned Kind=0) const;
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2009-02-06 18:43:24 +01:00
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2011-11-22 17:21:04 +01:00
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unsigned getRegPressureLimit(const TargetRegisterClass *RC,
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MachineFunction &MF) const;
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2004-08-17 06:55:41 +02:00
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/// Code Generation virtual methods...
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2012-03-04 04:33:22 +01:00
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const uint16_t *getCalleeSavedRegs(const MachineFunction* MF = 0) const;
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2012-03-06 17:41:49 +01:00
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const unsigned *getCallPreservedMask(CallingConv::ID CC) const;
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2006-05-18 02:12:58 +02:00
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2007-02-19 22:49:54 +01:00
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BitVector getReservedRegs(const MachineFunction &MF) const;
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2012-06-19 15:57:17 +02:00
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virtual bool avoidWriteAfterWrite(const TargetRegisterClass *RC) const;
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2008-03-03 23:19:16 +01:00
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/// requiresRegisterScavenging - We require a register scavenger.
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/// FIXME (64-bit): Should be inlined.
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bool requiresRegisterScavenging(const MachineFunction &MF) const;
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2012-04-23 23:39:35 +02:00
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bool trackLivenessAfterRegAlloc(const MachineFunction &MF) const;
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2004-08-17 06:55:41 +02:00
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void eliminateCallFramePseudoInstr(MachineFunction &MF,
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MachineBasicBlock &MBB,
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MachineBasicBlock::iterator I) const;
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2008-03-03 23:19:16 +01:00
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void lowerDynamicAlloc(MachineBasicBlock::iterator II,
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int SPAdj, RegScavenger *RS) const;
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void lowerCRSpilling(MachineBasicBlock::iterator II, unsigned FrameIndex,
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int SPAdj, RegScavenger *RS) const;
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2011-12-06 21:55:36 +01:00
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void lowerCRRestore(MachineBasicBlock::iterator II, unsigned FrameIndex,
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int SPAdj, RegScavenger *RS) const;
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2010-08-27 01:32:16 +02:00
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void eliminateFrameIndex(MachineBasicBlock::iterator II,
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int SPAdj, RegScavenger *RS = NULL) const;
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2004-08-17 06:55:41 +02:00
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2006-03-28 15:48:33 +02:00
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// Debug information queries.
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2009-11-12 22:00:03 +01:00
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unsigned getFrameRegister(const MachineFunction &MF) const;
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2007-02-21 23:54:50 +01:00
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// Exception handling queries.
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unsigned getEHExceptionRegister() const;
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unsigned getEHHandlerRegister() const;
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2004-08-17 06:55:41 +02:00
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};
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} // end namespace llvm
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#endif
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