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.
101 lines
3.1 KiB
C++
101 lines
3.1 KiB
C++
//===- XCoreMachineFunctionInfo.h - XCore 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 XCore-specific per-machine-function information.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_XCORE_XCOREMACHINEFUNCTIONINFO_H
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#define LLVM_LIB_TARGET_XCORE_XCOREMACHINEFUNCTIONINFO_H
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#include "llvm/CodeGen/MachineBasicBlock.h"
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#include "llvm/CodeGen/MachineFrameInfo.h"
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#include "llvm/CodeGen/MachineFunction.h"
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#include <cassert>
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#include <utility>
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#include <vector>
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namespace llvm {
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/// XCoreFunctionInfo - This class is derived from MachineFunction private
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/// XCore target-specific information for each MachineFunction.
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class XCoreFunctionInfo : public MachineFunctionInfo {
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bool LRSpillSlotSet = false;
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int LRSpillSlot;
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bool FPSpillSlotSet = false;
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int FPSpillSlot;
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bool EHSpillSlotSet = false;
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int EHSpillSlot[2];
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unsigned ReturnStackOffset;
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bool ReturnStackOffsetSet = false;
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int VarArgsFrameIndex = 0;
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mutable int CachedEStackSize = -1;
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std::vector<std::pair<MachineBasicBlock::iterator, CalleeSavedInfo>>
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SpillLabels;
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virtual void anchor();
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public:
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XCoreFunctionInfo() = default;
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explicit XCoreFunctionInfo(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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~XCoreFunctionInfo() override = default;
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void setVarArgsFrameIndex(int off) { VarArgsFrameIndex = off; }
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int getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
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int createLRSpillSlot(MachineFunction &MF);
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bool hasLRSpillSlot() { return LRSpillSlotSet; }
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int getLRSpillSlot() const {
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assert(LRSpillSlotSet && "LR Spill slot not set");
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return LRSpillSlot;
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}
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int createFPSpillSlot(MachineFunction &MF);
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bool hasFPSpillSlot() { return FPSpillSlotSet; }
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int getFPSpillSlot() const {
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assert(FPSpillSlotSet && "FP Spill slot not set");
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return FPSpillSlot;
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}
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const int* createEHSpillSlot(MachineFunction &MF);
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bool hasEHSpillSlot() { return EHSpillSlotSet; }
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const int* getEHSpillSlot() const {
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assert(EHSpillSlotSet && "EH Spill slot not set");
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return EHSpillSlot;
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}
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void setReturnStackOffset(unsigned value) {
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assert(!ReturnStackOffsetSet && "Return stack offset set twice");
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ReturnStackOffset = value;
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ReturnStackOffsetSet = true;
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}
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unsigned getReturnStackOffset() const {
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assert(ReturnStackOffsetSet && "Return stack offset not set");
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return ReturnStackOffset;
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}
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bool isLargeFrame(const MachineFunction &MF) const;
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std::vector<std::pair<MachineBasicBlock::iterator, CalleeSavedInfo>> &
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getSpillLabels() {
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return SpillLabels;
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}
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};
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} // end namespace llvm
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#endif // LLVM_LIB_TARGET_XCORE_XCOREMACHINEFUNCTIONINFO_H
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