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.
61 lines
2.1 KiB
C++
61 lines
2.1 KiB
C++
//===- SparcMachineFunctionInfo.h - Sparc 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 Sparc specific per-machine-function information.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_SPARC_SPARCMACHINEFUNCTIONINFO_H
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#define LLVM_LIB_TARGET_SPARC_SPARCMACHINEFUNCTIONINFO_H
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#include "llvm/CodeGen/MachineFunction.h"
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namespace llvm {
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class SparcMachineFunctionInfo : public MachineFunctionInfo {
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virtual void anchor();
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private:
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Register GlobalBaseReg;
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/// VarArgsFrameOffset - Frame offset to start of varargs area.
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int VarArgsFrameOffset;
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/// SRetReturnReg - Holds the virtual register into which the sret
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/// argument is passed.
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Register SRetReturnReg;
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/// IsLeafProc - True if the function is a leaf procedure.
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bool IsLeafProc;
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public:
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SparcMachineFunctionInfo()
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: GlobalBaseReg(0), VarArgsFrameOffset(0), SRetReturnReg(0),
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IsLeafProc(false) {}
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explicit SparcMachineFunctionInfo(MachineFunction &MF)
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: GlobalBaseReg(0), VarArgsFrameOffset(0), SRetReturnReg(0),
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IsLeafProc(false) {}
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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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Register getGlobalBaseReg() const { return GlobalBaseReg; }
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void setGlobalBaseReg(Register Reg) { GlobalBaseReg = Reg; }
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int getVarArgsFrameOffset() const { return VarArgsFrameOffset; }
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void setVarArgsFrameOffset(int Offset) { VarArgsFrameOffset = Offset; }
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Register getSRetReturnReg() const { return SRetReturnReg; }
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void setSRetReturnReg(Register Reg) { SRetReturnReg = Reg; }
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void setLeafProc(bool rhs) { IsLeafProc = rhs; }
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bool isLeafProc() const { return IsLeafProc; }
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};
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}
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#endif
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