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llvm-mirror/lib/Target/Mips/Mips16ISelDAGToDAG.h
Chandler Carruth ae65e281f3 Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636
2019-01-19 08:50:56 +00:00

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