55 lines
1.8 KiB
C
55 lines
1.8 KiB
C
|
//===---- Mips16ISelDAGToDAG.h - A Dag to Dag Inst Selector for Mips ------===//
|
||
|
|
//
|
||
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
||
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
||
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
||
|
|
//
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
//
|
||
|
|
// Subclass of MipsDAGToDAGISel specialized for mips16.
|
||
|
|
//
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
|
||
|
|
#ifndef LLVM_LIB_TARGET_MIPS_MIPS16ISELDAGTODAG_H
|
||
|
|
#define LLVM_LIB_TARGET_MIPS_MIPS16ISELDAGTODAG_H
|
||
|
|
|
||
|
|
#include "MipsISelDAGToDAG.h"
|
||
|
|
|
||
|
|
namespace llvm {
|
||
|
|
|
||
|
|
class Mips16DAGToDAGISel : public MipsDAGToDAGISel {
|
||
|
|
public:
|
||
|
|
explicit Mips16DAGToDAGISel(MipsTargetMachine &TM, CodeGenOpt::Level OL)
|
||
|
|
: MipsDAGToDAGISel(TM, OL) {}
|
||
|
|
|
||
|
|
private:
|
||
|
|
std::pair<SDNode *, SDNode *> selectMULT(SDNode *N, unsigned Opc,
|
||
|
|
const SDLoc &DL, EVT Ty, bool HasLo,
|
||
|
|
bool HasHi);
|
||
|
|
|
||
|
|
bool runOnMachineFunction(MachineFunction &MF) override;
|
||
|
|
|
||
|
|
bool selectAddr(bool SPAllowed, SDValue Addr, SDValue &Base,
|
||
|
|
SDValue &Offset);
|
||
|
|
bool selectAddr16(SDValue Addr, SDValue &Base,
|
||
|
|
SDValue &Offset) override;
|
||
|
|
bool selectAddr16SP(SDValue Addr, SDValue &Base,
|
||
|
|
SDValue &Offset) override;
|
||
|
|
|
||
|
|
bool trySelect(SDNode *Node) override;
|
||
|
|
|
||
|
|
void processFunctionAfterISel(MachineFunction &MF) override;
|
||
|
|
|
||
|
|
// Insert instructions to initialize the global base register in the
|
||
|
|
// first MBB of the function.
|
||
|
|
void initGlobalBaseReg(MachineFunction &MF);
|
||
|
|
|
||
|
|
void initMips16SPAliasReg(MachineFunction &MF);
|
||
|
|
};
|
||
|
|
|
||
|
|
FunctionPass *createMips16ISelDag(MipsTargetMachine &TM,
|
||
|
|
CodeGenOpt::Level OptLevel);
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|