CSKYISelLowering.cpp File Reference

#include "CSKYISelLowering.h"
#include "CSKYCallingConv.h"
#include "CSKYConstantPoolValue.h"
#include "CSKYMachineFunctionInfo.h"
#include "CSKYRegisterInfo.h"
#include "CSKYSubtarget.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/CodeGen/CallingConvLower.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineJumpTableInfo.h"
#include "llvm/Support/Debug.h"
#include "CSKYGenCallingConv.inc"

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "csky-isel-lowering"

Functions
	STATISTIC (NumTailCalls, "Number of tail calls")
static SDValue	convertValVTToLocVT (SelectionDAG &DAG, SDValue Val, const CCValAssign &VA, const SDLoc &DL)
static SDValue	convertLocVTToValVT (SelectionDAG &DAG, SDValue Val, const CCValAssign &VA, const SDLoc &DL)
static SDValue	unpackFromRegLoc (const CSKYSubtarget &Subtarget, SelectionDAG &DAG, SDValue Chain, const CCValAssign &VA, const SDLoc &DL)
static SDValue	unpackFromMemLoc (SelectionDAG &DAG, SDValue Chain, const CCValAssign &VA, const SDLoc &DL)
static SDValue	unpack64 (SelectionDAG &DAG, SDValue Chain, const CCValAssign &VA, const SDLoc &DL)
static CSKYCP::CSKYCPModifier	getModifier (unsigned Flags)
static MachineBasicBlock *	emitSelectPseudo (MachineInstr &MI, MachineBasicBlock *BB, unsigned Opcode)

Variables
static const MCPhysReg	GPRArgRegs [] = {CSKY::R0, CSKY::R1, CSKY::R2, CSKY::R3}

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "csky-isel-lowering"

Definition at line 28 of file CSKYISelLowering.cpp.

Function Documentation

convertLocVTToValVT()

static SDValue convertLocVTToValVT ( SelectionDAG &  DAG, SDValue  Val, const CCValAssign &  VA, const SDLoc &  DL  )

static

Definition at line 210 of file CSKYISelLowering.cpp.

References llvm::CCValAssign::BCvt, llvm::ISD::BITCAST, DL, llvm::CCValAssign::Full, llvm::CCValAssign::getLocInfo(), llvm::SelectionDAG::getNode(), llvm::CCValAssign::getValVT(), and llvm_unreachable.

Referenced by llvm::SystemZTargetLowering::LowerCall(), llvm::LoongArchTargetLowering::LowerCall(), llvm::RISCVTargetLowering::LowerCall(), llvm::SystemZTargetLowering::LowerFormalArguments(), and unpackFromRegLoc().

convertValVTToLocVT()

static SDValue convertValVTToLocVT ( SelectionDAG &  DAG, SDValue  Val, const CCValAssign &  VA, const SDLoc &  DL  )

static

Definition at line 194 of file CSKYISelLowering.cpp.

References llvm::CCValAssign::BCvt, llvm::ISD::BITCAST, DL, llvm::CCValAssign::Full, llvm::CCValAssign::getLocInfo(), llvm::CCValAssign::getLocVT(), llvm::SelectionDAG::getNode(), and llvm_unreachable.

Referenced by llvm::SystemZTargetLowering::LowerCall(), llvm::LoongArchTargetLowering::LowerCall(), llvm::RISCVTargetLowering::LowerCall(), llvm::LoongArchTargetLowering::LowerReturn(), llvm::RISCVTargetLowering::LowerReturn(), and llvm::SystemZTargetLowering::LowerReturn().

emitSelectPseudo()

static MachineBasicBlock * emitSelectPseudo ( MachineInstr &  MI, MachineBasicBlock *  BB, unsigned  Opcode  )

static

Definition at line 959 of file CSKYISelLowering.cpp.

References llvm::MachineInstrBuilder::addMBB(), llvm::MachineInstrBuilder::addReg(), llvm::MachineBasicBlock::addSuccessor(), llvm::MachineBasicBlock::begin(), llvm::BuildMI(), DL, llvm::MachineBasicBlock::end(), F, llvm::MachineBasicBlock::getBasicBlock(), llvm::TargetSubtargetInfo::getInstrInfo(), llvm::ilist_node_impl< OptionsT >::getIterator(), llvm::MachineBasicBlock::getParent(), llvm::MachineFunction::getSubtarget(), MI, llvm::MachineBasicBlock::splice(), TII, and llvm::MachineBasicBlock::transferSuccessorsAndUpdatePHIs().

Referenced by llvm::RISCVTargetLowering::EmitInstrWithCustomInserter().

getModifier()

static CSKYCP::CSKYCPModifier getModifier ( unsigned  Flags )

static

Definition at line 762 of file CSKYISelLowering.cpp.

References llvm::CSKYCP::ADDR, assert(), Flags, llvm::CSKYCP::GOT, llvm::CSKYCP::GOTOFF, llvm::CSKYII::MO_ADDR32, llvm::CSKYII::MO_GOT32, llvm::CSKYII::MO_GOTOFF, llvm::CSKYII::MO_None, llvm::CSKYII::MO_PLT32, llvm::CSKYCP::NO_MOD, and llvm::CSKYCP::PLT.

STATISTIC()

STATISTIC	(	NumTailCalls	,
		"Number of tail calls"
	)

unpack64()

static SDValue unpack64 ( SelectionDAG &  DAG, SDValue  Chain, const CCValAssign &  VA, const SDLoc &  DL  )

static

Definition at line 283 of file CSKYISelLowering.cpp.

References assert(), llvm::CSKYISD::BITCAST_FROM_LOHI, llvm::MachineFrameInfo::CreateFixedObject(), DL, llvm::SelectionDAG::getCopyFromReg(), llvm::MachinePointerInfo::getFixedStack(), llvm::SelectionDAG::getFrameIndex(), llvm::MachineFunction::getFrameInfo(), llvm::SelectionDAG::getLoad(), llvm::CCValAssign::getLocMemOffset(), llvm::CCValAssign::getLocReg(), llvm::CCValAssign::getLocVT(), llvm::SelectionDAG::getMachineFunction(), llvm::SelectionDAG::getNode(), llvm::MachineFunction::getRegInfo(), llvm::CCValAssign::getValVT(), llvm::Hi, llvm::CCValAssign::isMemLoc(), llvm::CCValAssign::isRegLoc(), and llvm::Lo.

unpackFromMemLoc()

static SDValue unpackFromMemLoc ( SelectionDAG &  DAG, SDValue  Chain, const CCValAssign &  VA, const SDLoc &  DL  )

static

Definition at line 256 of file CSKYISelLowering.cpp.

References llvm::CCValAssign::BCvt, llvm::MachineFrameInfo::CreateFixedObject(), DL, llvm::CCValAssign::Full, llvm::SelectionDAG::getDataLayout(), llvm::SelectionDAG::getExtLoad(), llvm::MachinePointerInfo::getFixedStack(), llvm::SelectionDAG::getFrameIndex(), llvm::MachineFunction::getFrameInfo(), llvm::MVT::getIntegerVT(), llvm::CCValAssign::getLocInfo(), llvm::CCValAssign::getLocMemOffset(), llvm::CCValAssign::getLocVT(), llvm::SelectionDAG::getMachineFunction(), llvm::DataLayout::getPointerSizeInBits(), llvm::EVT::getSizeInBits(), llvm::CCValAssign::getValVT(), llvm_unreachable, and llvm::ISD::NON_EXTLOAD.

Referenced by llvm::LoongArchTargetLowering::LowerFormalArguments(), and llvm::RISCVTargetLowering::LowerFormalArguments().

unpackFromRegLoc()

static SDValue unpackFromRegLoc ( const CSKYSubtarget &  Subtarget, SelectionDAG &  DAG, SDValue  Chain, const CCValAssign &  VA, const SDLoc &  DL  )

static

Definition at line 224 of file CSKYISelLowering.cpp.

References convertLocVTToValVT(), DL, llvm::SelectionDAG::getCopyFromReg(), llvm::CCValAssign::getLocReg(), llvm::CCValAssign::getLocVT(), llvm::SelectionDAG::getMachineFunction(), llvm::MachineFunction::getRegInfo(), llvm::EVT::getSimpleVT(), llvm::CSKYSubtarget::hasFPUv2DoubleFloat(), llvm::CSKYSubtarget::hasFPUv2SingleFloat(), llvm_unreachable, and llvm::MVT::SimpleTy.

Referenced by llvm::LoongArchTargetLowering::LowerFormalArguments(), and llvm::RISCVTargetLowering::LowerFormalArguments().

Variable Documentation

GPRArgRegs

const MCPhysReg GPRArgRegs[] = {CSKY::R0, CSKY::R1, CSKY::R2, CSKY::R3}

static

Definition at line 34 of file CSKYISelLowering.cpp.