cc5a1b3dd9
MIR support is totally unusable for AMDGPU without this, since the set of reserved registers is set from fields here. Add a clone method to MachineFunctionInfo. This is a subtle variant of the copy constructor that is required if there are any MIR constructs that use pointers. Specifically, at minimum fields that reference MachineBasicBlocks or the MachineFunction need to be adjusted to the values in the new function.
67 lines
2.4 KiB
C++
67 lines
2.4 KiB
C++
//=== MSP430MachineFunctionInfo.h - MSP430 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 MSP430-specific per-machine-function information.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_MSP430_MSP430MACHINEFUNCTIONINFO_H
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#define LLVM_LIB_TARGET_MSP430_MSP430MACHINEFUNCTIONINFO_H
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#include "llvm/CodeGen/MachineFunction.h"
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namespace llvm {
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/// MSP430MachineFunctionInfo - This class is derived from MachineFunction and
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/// contains private MSP430 target-specific information for each MachineFunction.
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class MSP430MachineFunctionInfo : public MachineFunctionInfo {
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virtual void anchor();
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/// CalleeSavedFrameSize - Size of the callee-saved register portion of the
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/// stack frame in bytes.
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unsigned CalleeSavedFrameSize = 0;
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/// ReturnAddrIndex - FrameIndex for return slot.
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int ReturnAddrIndex = 0;
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/// VarArgsFrameIndex - FrameIndex for start of varargs area.
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int VarArgsFrameIndex = 0;
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/// SRetReturnReg - Some subtargets require that sret lowering includes
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/// returning the value of the returned struct in a register. This field
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/// holds the virtual register into which the sret argument is passed.
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Register SRetReturnReg;
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public:
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MSP430MachineFunctionInfo() = default;
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explicit MSP430MachineFunctionInfo(MachineFunction &MF)
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: CalleeSavedFrameSize(0), ReturnAddrIndex(0), SRetReturnReg(0) {}
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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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};
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} // End llvm namespace
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#endif
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