
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.
58 lines
2.1 KiB
C++
58 lines
2.1 KiB
C++
//=- LoongArchMachineFunctionInfo.h - LoongArch machine function info -----===//
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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 LoongArch-specific per-machine-function information.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_LOONGARCH_LOONGARCHMACHINEFUNCTIONINFO_H
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#define LLVM_LIB_TARGET_LOONGARCH_LOONGARCHMACHINEFUNCTIONINFO_H
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#include "LoongArchSubtarget.h"
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#include "llvm/CodeGen/MachineFrameInfo.h"
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#include "llvm/CodeGen/MachineFunction.h"
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namespace llvm {
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/// LoongArchMachineFunctionInfo - This class is derived from
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/// MachineFunctionInfo and contains private LoongArch-specific information for
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/// each MachineFunction.
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class LoongArchMachineFunctionInfo : public MachineFunctionInfo {
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private:
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/// FrameIndex for start of varargs area
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int VarArgsFrameIndex = 0;
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/// Size of the save area used for varargs
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int VarArgsSaveSize = 0;
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/// Size of stack frame to save callee saved registers
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unsigned CalleeSavedStackSize = 0;
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public:
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LoongArchMachineFunctionInfo(const MachineFunction &MF) {}
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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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return DestMF.cloneInfo<LoongArchMachineFunctionInfo>(*this);
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}
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int getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
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void setVarArgsFrameIndex(int Index) { VarArgsFrameIndex = Index; }
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unsigned getVarArgsSaveSize() const { return VarArgsSaveSize; }
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void setVarArgsSaveSize(int Size) { VarArgsSaveSize = Size; }
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unsigned getCalleeSavedStackSize() const { return CalleeSavedStackSize; }
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void setCalleeSavedStackSize(unsigned Size) { CalleeSavedStackSize = Size; }
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};
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} // end namespace llvm
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#endif // LLVM_LIB_TARGET_LOONGARCH_LOONGARCHMACHINEFUNCTIONINFO_H
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