73 lines
2.5 KiB
C++
73 lines
2.5 KiB
C++
//=== W65816MachineFunctionInfo.h - W65816 machine function info -*- C++ -*-==//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file declares W65816-specific per-machine-function information.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_W65816_W65816MACHINEFUNCTIONINFO_H
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#define LLVM_LIB_TARGET_W65816_W65816MACHINEFUNCTIONINFO_H
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#include "llvm/CodeGen/MachineFunction.h"
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namespace llvm {
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/// W65816MachineFunctionInfo - per-MachineFunction private target-specific
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/// information for the W65816.
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class W65816MachineFunctionInfo : public MachineFunctionInfo {
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virtual void anchor();
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/// Size of the callee-saved register portion of the stack frame in bytes.
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unsigned CalleeSavedFrameSize = 0;
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/// FrameIndex for the return-address slot.
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int ReturnAddrIndex = 0;
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/// FrameIndex for the start of the varargs area.
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int VarArgsFrameIndex = 0;
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/// Virtual register holding the struct-return pointer for sret returns.
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Register SRetReturnReg;
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/// True iff the function's prologue chose 8-bit M (SEP #$20). Pure-i8
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/// functions run with M=1; everything else runs with M=0. AsmPrinter
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/// reads this when expanding pseudos whose width depends on M (e.g.
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/// STA8abs needs an SEP/REP wrap in M=0 to avoid a 2-byte store).
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bool UsesAcc8 = false;
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public:
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W65816MachineFunctionInfo() = default;
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W65816MachineFunctionInfo(const Function &F, const TargetSubtargetInfo *STI) {
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}
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MachineFunctionInfo *
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clone(BumpPtrAllocator &Allocator, MachineFunction &DestMF,
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const DenseMap<MachineBasicBlock *, MachineBasicBlock *> &Src2DstMBB)
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const override;
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unsigned getCalleeSavedFrameSize() const { return CalleeSavedFrameSize; }
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void setCalleeSavedFrameSize(unsigned Bytes) { CalleeSavedFrameSize = Bytes; }
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Register getSRetReturnReg() const { return SRetReturnReg; }
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void setSRetReturnReg(Register Reg) { SRetReturnReg = Reg; }
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int getRAIndex() const { return ReturnAddrIndex; }
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void setRAIndex(int Index) { ReturnAddrIndex = Index; }
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int getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
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void setVarArgsFrameIndex(int Index) { VarArgsFrameIndex = Index; }
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bool getUsesAcc8() const { return UsesAcc8; }
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void setUsesAcc8(bool V) { UsesAcc8 = V; }
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};
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} // namespace llvm
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#endif
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