mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-20 11:33:24 +02:00
6e80950911
This is a mechanical change to make TargetLowering API take MachineInstr& (instead of MachineInstr*), since the argument is expected to be a valid MachineInstr. In one case, changed a parameter from MachineInstr* to MachineBasicBlock::iterator, since it was used as an insertion point. As a side effect, this removes a bunch of MachineInstr* to MachineBasicBlock::iterator implicit conversions, a necessary step toward fixing PR26753. llvm-svn: 274287
94 lines
3.3 KiB
C++
94 lines
3.3 KiB
C++
//===-- BPFISelLowering.h - BPF DAG Lowering Interface ----------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file defines the interfaces that BPF uses to lower LLVM code into a
|
|
// selection DAG.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_LIB_TARGET_BPF_BPFISELLOWERING_H
|
|
#define LLVM_LIB_TARGET_BPF_BPFISELLOWERING_H
|
|
|
|
#include "BPF.h"
|
|
#include "llvm/CodeGen/SelectionDAG.h"
|
|
#include "llvm/Target/TargetLowering.h"
|
|
|
|
namespace llvm {
|
|
class BPFSubtarget;
|
|
namespace BPFISD {
|
|
enum NodeType : unsigned {
|
|
FIRST_NUMBER = ISD::BUILTIN_OP_END,
|
|
RET_FLAG,
|
|
CALL,
|
|
SELECT_CC,
|
|
BR_CC,
|
|
Wrapper
|
|
};
|
|
}
|
|
|
|
class BPFTargetLowering : public TargetLowering {
|
|
public:
|
|
explicit BPFTargetLowering(const TargetMachine &TM, const BPFSubtarget &STI);
|
|
|
|
// Provide custom lowering hooks for some operations.
|
|
SDValue LowerOperation(SDValue Op, SelectionDAG &DAG) const override;
|
|
|
|
// This method returns the name of a target specific DAG node.
|
|
const char *getTargetNodeName(unsigned Opcode) const override;
|
|
|
|
MachineBasicBlock *
|
|
EmitInstrWithCustomInserter(MachineInstr &MI,
|
|
MachineBasicBlock *BB) const override;
|
|
|
|
private:
|
|
SDValue LowerBR_CC(SDValue Op, SelectionDAG &DAG) const;
|
|
SDValue LowerSELECT_CC(SDValue Op, SelectionDAG &DAG) const;
|
|
SDValue LowerGlobalAddress(SDValue Op, SelectionDAG &DAG) const;
|
|
|
|
// Lower the result values of a call, copying them out of physregs into vregs
|
|
SDValue LowerCallResult(SDValue Chain, SDValue InFlag,
|
|
CallingConv::ID CallConv, bool IsVarArg,
|
|
const SmallVectorImpl<ISD::InputArg> &Ins,
|
|
const SDLoc &DL, SelectionDAG &DAG,
|
|
SmallVectorImpl<SDValue> &InVals) const;
|
|
|
|
// Maximum number of arguments to a call
|
|
static const unsigned MaxArgs;
|
|
|
|
// Lower a call into CALLSEQ_START - BPFISD:CALL - CALLSEQ_END chain
|
|
SDValue LowerCall(TargetLowering::CallLoweringInfo &CLI,
|
|
SmallVectorImpl<SDValue> &InVals) const override;
|
|
|
|
// Lower incoming arguments, copy physregs into vregs
|
|
SDValue LowerFormalArguments(SDValue Chain, CallingConv::ID CallConv,
|
|
bool IsVarArg,
|
|
const SmallVectorImpl<ISD::InputArg> &Ins,
|
|
const SDLoc &DL, SelectionDAG &DAG,
|
|
SmallVectorImpl<SDValue> &InVals) const override;
|
|
|
|
SDValue LowerReturn(SDValue Chain, CallingConv::ID CallConv, bool IsVarArg,
|
|
const SmallVectorImpl<ISD::OutputArg> &Outs,
|
|
const SmallVectorImpl<SDValue> &OutVals, const SDLoc &DL,
|
|
SelectionDAG &DAG) const override;
|
|
|
|
EVT getOptimalMemOpType(uint64_t Size, unsigned DstAlign, unsigned SrcAlign,
|
|
bool IsMemset, bool ZeroMemset, bool MemcpyStrSrc,
|
|
MachineFunction &MF) const override {
|
|
return Size >= 8 ? MVT::i64 : MVT::i32;
|
|
}
|
|
|
|
bool shouldConvertConstantLoadToIntImm(const APInt &Imm,
|
|
Type *Ty) const override {
|
|
return true;
|
|
}
|
|
};
|
|
}
|
|
|
|
#endif
|