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https://github.com/c64scene-ar/llvm-6502.git
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f19c6f5763
eliminateFrameIndex() has been reworked to handle both small & large frames with either a FP or SP. An additional Slot is required for Scavenging spills when not using FP for large frames. Reworked the handling of Register Scavenging. Whether we are using an FP or not, whether it is a large frame or not, and whether we are using a large code model or not are now independent. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196091 91177308-0d34-0410-b5e6-96231b3b80d8
56 lines
1.6 KiB
C++
56 lines
1.6 KiB
C++
//===-- XCoreRegisterInfo.h - XCore Register Information Impl ---*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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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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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains the XCore implementation of the MRegisterInfo class.
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//
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//===----------------------------------------------------------------------===//
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#ifndef XCOREREGISTERINFO_H
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#define XCOREREGISTERINFO_H
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#include "llvm/Target/TargetRegisterInfo.h"
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#define GET_REGINFO_HEADER
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#include "XCoreGenRegisterInfo.inc"
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namespace llvm {
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class TargetInstrInfo;
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struct XCoreRegisterInfo : public XCoreGenRegisterInfo {
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public:
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XCoreRegisterInfo();
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/// Code Generation virtual methods...
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const uint16_t *getCalleeSavedRegs(const MachineFunction *MF = 0) const;
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BitVector getReservedRegs(const MachineFunction &MF) const;
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bool requiresRegisterScavenging(const MachineFunction &MF) const;
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bool trackLivenessAfterRegAlloc(const MachineFunction &MF) const;
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bool useFPForScavengingIndex(const MachineFunction &MF) const;
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void eliminateFrameIndex(MachineBasicBlock::iterator II,
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int SPAdj, unsigned FIOperandNum,
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RegScavenger *RS = NULL) const;
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// Debug information queries.
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unsigned getFrameRegister(const MachineFunction &MF) const;
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//! Return whether to emit frame moves
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static bool needsFrameMoves(const MachineFunction &MF);
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};
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} // end namespace llvm
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#endif
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