forked from OSchip/llvm-project
54 lines
1.5 KiB
C++
54 lines
1.5 KiB
C++
//===---- Mips16ISelDAGToDAG.h - A Dag to Dag Inst Selector for Mips ------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// Subclass of MipsDAGToDAGISel specialized for mips16.
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//
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//===----------------------------------------------------------------------===//
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#ifndef MIPS16ISELDAGTODAG_H
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#define MIPS16ISELDAGTODAG_H
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#include "MipsISelDAGToDAG.h"
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namespace llvm {
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class Mips16DAGToDAGISel : public MipsDAGToDAGISel {
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public:
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explicit Mips16DAGToDAGISel(MipsTargetMachine &TM) : MipsDAGToDAGISel(TM) {}
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private:
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std::pair<SDNode*, SDNode*> selectMULT(SDNode *N, unsigned Opc, SDLoc DL,
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EVT Ty, bool HasLo, bool HasHi);
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SDValue getMips16SPAliasReg();
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virtual bool runOnMachineFunction(MachineFunction &MF);
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void getMips16SPRefReg(SDNode *Parent, SDValue &AliasReg);
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virtual bool selectAddr16(SDNode *Parent, SDValue N, SDValue &Base,
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SDValue &Offset, SDValue &Alias);
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virtual std::pair<bool, SDNode*> selectNode(SDNode *Node);
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virtual void processFunctionAfterISel(MachineFunction &MF);
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// Insert instructions to initialize the global base register in the
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// first MBB of the function.
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void initGlobalBaseReg(MachineFunction &MF);
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void initMips16SPAliasReg(MachineFunction &MF);
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};
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FunctionPass *createMips16ISelDag(MipsTargetMachine &TM);
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}
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#endif
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