MipsISelLowering.cpp File Reference

#include "MipsISelLowering.h"
#include "MCTargetDesc/MipsBaseInfo.h"
#include "MCTargetDesc/MipsInstPrinter.h"
#include "MCTargetDesc/MipsMCTargetDesc.h"
#include "MipsCCState.h"
#include "MipsInstrInfo.h"
#include "MipsMachineFunction.h"
#include "MipsRegisterInfo.h"
#include "MipsSubtarget.h"
#include "MipsTargetMachine.h"
#include "MipsTargetObjectFile.h"
#include "llvm/ADT/APFloat.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/CodeGen/CallingConvLower.h"
#include "llvm/CodeGen/FunctionLoweringInfo.h"
#include "llvm/CodeGen/ISDOpcodes.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineJumpTableInfo.h"
#include "llvm/CodeGen/MachineMemOperand.h"
#include "llvm/CodeGen/MachineOperand.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/SelectionDAG.h"
#include "llvm/CodeGen/SelectionDAGNodes.h"
#include "llvm/CodeGen/TargetFrameLowering.h"
#include "llvm/CodeGen/TargetInstrInfo.h"
#include "llvm/CodeGen/TargetRegisterInfo.h"
#include "llvm/CodeGen/ValueTypes.h"
#include "llvm/CodeGenTypes/MachineValueType.h"
#include "llvm/IR/CallingConv.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/DebugLoc.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/GlobalValue.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/Type.h"
#include "llvm/IR/Value.h"
#include "llvm/MC/MCContext.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/CodeGen.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetOptions.h"
#include <algorithm>
#include <cassert>
#include <cctype>
#include <cstdint>
#include <deque>
#include <iterator>
#include <utility>
#include <vector>
#include "MipsGenCallingConv.inc"

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "mips-lower"

Functions
	STATISTIC (NumTailCalls, "Number of tail calls")
static SDValue	performDivRemCombine (SDNode *N, SelectionDAG &DAG, TargetLowering::DAGCombinerInfo &DCI, const MipsSubtarget &Subtarget)
static Mips::CondCode	condCodeToFCC (ISD::CondCode CC)
static bool	invertFPCondCodeUser (Mips::CondCode CC)
	This function returns true if the floating point conditional branches and conditional moves which use condition code CC should be inverted.
static SDValue	createFPCmp (SelectionDAG &DAG, const SDValue &Op)
static SDValue	createCMovFP (SelectionDAG &DAG, SDValue Cond, SDValue True, SDValue False, const SDLoc &DL)
static SDValue	performSELECTCombine (SDNode *N, SelectionDAG &DAG, TargetLowering::DAGCombinerInfo &DCI, const MipsSubtarget &Subtarget)
static SDValue	performCMovFPCombine (SDNode *N, SelectionDAG &DAG, TargetLowering::DAGCombinerInfo &DCI, const MipsSubtarget &Subtarget)
static SDValue	performANDCombine (SDNode *N, SelectionDAG &DAG, TargetLowering::DAGCombinerInfo &DCI, const MipsSubtarget &Subtarget)
static SDValue	performORCombine (SDNode *N, SelectionDAG &DAG, TargetLowering::DAGCombinerInfo &DCI, const MipsSubtarget &Subtarget)
static SDValue	performMADD_MSUBCombine (SDNode *ROOTNode, SelectionDAG &CurDAG, const MipsSubtarget &Subtarget)
static SDValue	performSUBCombine (SDNode *N, SelectionDAG &DAG, TargetLowering::DAGCombinerInfo &DCI, const MipsSubtarget &Subtarget)
static SDValue	performADDCombine (SDNode *N, SelectionDAG &DAG, TargetLowering::DAGCombinerInfo &DCI, const MipsSubtarget &Subtarget)
static SDValue	performSHLCombine (SDNode *N, SelectionDAG &DAG, TargetLowering::DAGCombinerInfo &DCI, const MipsSubtarget &Subtarget)
static unsigned	addLiveIn (MachineFunction &MF, unsigned PReg, const TargetRegisterClass *RC)
static MachineBasicBlock *	insertDivByZeroTrap (MachineInstr &MI, MachineBasicBlock &MBB, const TargetInstrInfo &TII, bool Is64Bit, bool IsMicroMips)
static SDValue	lowerFCOPYSIGN32 (SDValue Op, SelectionDAG &DAG, bool HasExtractInsert)
static SDValue	lowerFCOPYSIGN64 (SDValue Op, SelectionDAG &DAG, bool HasExtractInsert)
static SDValue	createLoadLR (unsigned Opc, SelectionDAG &DAG, LoadSDNode *LD, SDValue Chain, SDValue Src, unsigned Offset)
static SDValue	createStoreLR (unsigned Opc, SelectionDAG &DAG, StoreSDNode *SD, SDValue Chain, unsigned Offset)
static SDValue	lowerUnalignedIntStore (StoreSDNode *SD, SelectionDAG &DAG, bool IsLittle)
static SDValue	lowerFP_TO_SINT_STORE (StoreSDNode *SD, SelectionDAG &DAG, bool SingleFloat)
static bool	CC_MipsO32 (unsigned ValNo, MVT ValVT, MVT LocVT, CCValAssign::LocInfo LocInfo, ISD::ArgFlagsTy ArgFlags, CCState &State, ArrayRef< MCPhysReg > F64Regs)
static bool	CC_MipsO32_FP32 (unsigned ValNo, MVT ValVT, MVT LocVT, CCValAssign::LocInfo LocInfo, ISD::ArgFlagsTy ArgFlags, CCState &State)
static bool	CC_MipsO32_FP64 (unsigned ValNo, MVT ValVT, MVT LocVT, CCValAssign::LocInfo LocInfo, ISD::ArgFlagsTy ArgFlags, CCState &State)
static bool	CC_MipsO32 (unsigned ValNo, MVT ValVT, MVT LocVT, CCValAssign::LocInfo LocInfo, ISD::ArgFlagsTy ArgFlags, CCState &State) LLVM_ATTRIBUTE_UNUSED
static SDValue	UnpackFromArgumentSlot (SDValue Val, const CCValAssign &VA, EVT ArgVT, const SDLoc &DL, SelectionDAG &DAG)
static std::pair< bool, bool >	parsePhysicalReg (StringRef C, StringRef &Prefix, unsigned long long &Reg)
	This is a helper function to parse a physical register string and split it into non-numeric and numeric parts (Prefix and Reg).

Variables
static cl::opt< bool >	NoZeroDivCheck ("mno-check-zero-division", cl::Hidden, cl::desc("MIPS: Don't trap on integer division by zero."), cl::init(false))
cl::opt< bool >	EmitJalrReloc
static const MCPhysReg	Mips64DPRegs [8]

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "mips-lower"

Definition at line 80 of file MipsISelLowering.cpp.

Function Documentation

addLiveIn()

static unsigned addLiveIn ( MachineFunction &  MF, unsigned  PReg, const TargetRegisterClass *  RC  )

static

Definition at line 1323 of file MipsISelLowering.cpp.

References llvm::MachineRegisterInfo::addLiveIn(), llvm::MachineRegisterInfo::createVirtualRegister(), and llvm::MachineFunction::getRegInfo().

CC_MipsO32() [1/2]

static bool CC_MipsO32 ( unsigned  ValNo, MVT  ValVT, MVT  LocVT, CCValAssign::LocInfo  LocInfo, ISD::ArgFlagsTy  ArgFlags, CCState &  State  )

static

CC_MipsO32() [2/2]

static bool CC_MipsO32 ( unsigned  ValNo, MVT  ValVT, MVT  LocVT, CCValAssign::LocInfo  LocInfo, ISD::ArgFlagsTy  ArgFlags, CCState &  State, ArrayRef< MCPhysReg >  F64Regs  )

static

Definition at line 2949 of file MipsISelLowering.cpp.

References llvm::CCState::addLoc(), llvm::CCValAssign::AExt, llvm::CCValAssign::AExtUpper, llvm::CCState::AllocateReg(), llvm::CCState::AllocateStack(), assert(), F32Regs, llvm::CCValAssign::getCustomReg(), llvm::CCState::getFirstUnallocated(), llvm::CCState::getMachineFunction(), llvm::CCValAssign::getMem(), llvm::ISD::ArgFlagsTy::getNonZeroOrigAlign(), llvm::CCValAssign::getReg(), llvm::MVT::getStoreSize(), llvm::MachineFunction::getSubtarget(), IntRegs, llvm::ISD::ArgFlagsTy::isByVal(), llvm::MVT::isFloatingPoint(), llvm::ISD::ArgFlagsTy::isInReg(), llvm::MipsSubtarget::isLittle(), llvm::ISD::ArgFlagsTy::isSExt(), llvm::ISD::ArgFlagsTy::isSplit(), llvm::CCState::isVarArg(), llvm::ISD::ArgFlagsTy::isZExt(), llvm_unreachable, llvm::Offset, llvm::CCValAssign::SExt, llvm::CCValAssign::SExtUpper, llvm::MipsCCState::WasOriginalArgVectorFloat(), llvm::CCValAssign::ZExt, and llvm::CCValAssign::ZExtUpper.

Referenced by CC_MipsO32_FP32(), and CC_MipsO32_FP64().

CC_MipsO32_FP32()

static bool CC_MipsO32_FP32 ( unsigned  ValNo, MVT  ValVT, MVT  LocVT, CCValAssign::LocInfo  LocInfo, ISD::ArgFlagsTy  ArgFlags, CCState &  State  )

static

Definition at line 3071 of file MipsISelLowering.cpp.

References CC_MipsO32().

CC_MipsO32_FP64()

static bool CC_MipsO32_FP64 ( unsigned  ValNo, MVT  ValVT, MVT  LocVT, CCValAssign::LocInfo  LocInfo, ISD::ArgFlagsTy  ArgFlags, CCState &  State  )

static

Definition at line 3079 of file MipsISelLowering.cpp.

References CC_MipsO32().

condCodeToFCC()

static Mips::CondCode condCodeToFCC ( ISD::CondCode  CC )

static

Definition at line 615 of file MipsISelLowering.cpp.

References CC, llvm::Mips::FCOND_OEQ, llvm::Mips::FCOND_OGE, llvm::Mips::FCOND_OGT, llvm::Mips::FCOND_OLE, llvm::Mips::FCOND_OLT, llvm::Mips::FCOND_ONE, llvm::Mips::FCOND_OR, llvm::Mips::FCOND_UEQ, llvm::Mips::FCOND_UGE, llvm::Mips::FCOND_UGT, llvm::Mips::FCOND_ULE, llvm::Mips::FCOND_ULT, llvm::Mips::FCOND_UN, llvm::Mips::FCOND_UNE, llvm_unreachable, llvm::ISD::SETEQ, llvm::ISD::SETGE, llvm::ISD::SETGT, llvm::ISD::SETLE, llvm::ISD::SETLT, llvm::ISD::SETNE, llvm::ISD::SETO, llvm::ISD::SETOEQ, llvm::ISD::SETOGE, llvm::ISD::SETOGT, llvm::ISD::SETOLE, llvm::ISD::SETOLT, llvm::ISD::SETONE, llvm::ISD::SETUEQ, llvm::ISD::SETUGE, llvm::ISD::SETUGT, llvm::ISD::SETULE, llvm::ISD::SETULT, llvm::ISD::SETUNE, and llvm::ISD::SETUO.

Referenced by createFPCmp().

createCMovFP()

static SDValue createCMovFP ( SelectionDAG &  DAG, SDValue  Cond, SDValue  True, SDValue  False, const SDLoc &  DL  )

static

Definition at line 677 of file MipsISelLowering.cpp.

References CC, llvm::MipsISD::CMovFP_F, llvm::MipsISD::CMovFP_T, Cond, DL, llvm::SelectionDAG::getNode(), llvm::SelectionDAG::getRegister(), llvm::SDValue::getValueType(), and invertFPCondCodeUser().

createFPCmp()

static SDValue createFPCmp ( SelectionDAG &  DAG, const SDValue &  Op  )

static

Definition at line 655 of file MipsISelLowering.cpp.

References CC, condCodeToFCC(), DL, llvm::MipsISD::FPCmp, llvm::SelectionDAG::getConstant(), llvm::SelectionDAG::getNode(), LHS, RHS, and llvm::ISD::SETCC.

createLoadLR()

static SDValue createLoadLR ( unsigned  Opc, SelectionDAG &  DAG, LoadSDNode *  LD, SDValue  Chain, SDValue  Src, unsigned  Offset  )

static

Definition at line 2746 of file MipsISelLowering.cpp.

References llvm::ISD::ADD, DL, llvm::SelectionDAG::getConstant(), llvm::SelectionDAG::getMemIntrinsicNode(), llvm::SelectionDAG::getNode(), llvm::SelectionDAG::getVTList(), llvm::Offset, and Ptr.

Referenced by llvm::MipsTargetLowering::lowerLOAD().

createStoreLR()

static SDValue createStoreLR ( unsigned  Opc, SelectionDAG &  DAG, StoreSDNode *  SD, SDValue  Chain, unsigned  Offset  )

static

Definition at line 2828 of file MipsISelLowering.cpp.

References llvm::ISD::ADD, DL, llvm::StoreSDNode::getBasePtr(), llvm::SelectionDAG::getConstant(), llvm::SelectionDAG::getMemIntrinsicNode(), llvm::MemSDNode::getMemOperand(), llvm::MemSDNode::getMemoryVT(), llvm::SelectionDAG::getNode(), llvm::StoreSDNode::getValue(), llvm::SelectionDAG::getVTList(), llvm::Offset, and Ptr.

Referenced by lowerUnalignedIntStore().

insertDivByZeroTrap()

static MachineBasicBlock * insertDivByZeroTrap ( MachineInstr &  MI, MachineBasicBlock &  MBB, const TargetInstrInfo &  TII, bool  Is64Bit, bool  IsMicroMips  )

static

Definition at line 1330 of file MipsISelLowering.cpp.

References llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addReg(), llvm::BuildMI(), llvm::getKillRegState(), llvm::MachineInstr::getOperand(), llvm::MachineOperand::getReg(), I, llvm::MachineOperand::isKill(), MBB, MI, NoZeroDivCheck, llvm::MachineOperand::setIsKill(), llvm::MachineOperand::setSubReg(), and TII.

invertFPCondCodeUser()

static bool invertFPCondCodeUser ( Mips::CondCode  CC )

static

This function returns true if the floating point conditional branches and conditional moves which use condition code CC should be inverted.

Definition at line 643 of file MipsISelLowering.cpp.

References assert(), CC, llvm::Mips::FCOND_F, llvm::Mips::FCOND_GT, llvm::Mips::FCOND_NGT, and llvm::Mips::FCOND_T.

Referenced by createCMovFP().

lowerFCOPYSIGN32()

static SDValue lowerFCOPYSIGN32 ( SDValue  Op, SelectionDAG &  DAG, bool  HasExtractInsert  )

static

Definition at line 2393 of file MipsISelLowering.cpp.

References llvm::ISD::BITCAST, llvm::MipsISD::BuildPairF64, DL, llvm::MipsISD::Ext, llvm::MipsISD::ExtractElementF64, llvm::SelectionDAG::getConstant(), llvm::SelectionDAG::getNode(), llvm::MipsISD::Ins, llvm::ISD::OR, llvm::ISD::SHL, llvm::ISD::SRL, X, and Y.

lowerFCOPYSIGN64()

static SDValue lowerFCOPYSIGN64 ( SDValue  Op, SelectionDAG &  DAG, bool  HasExtractInsert  )

static

Definition at line 2440 of file MipsISelLowering.cpp.

References llvm::ISD::BITCAST, DL, llvm::MipsISD::Ext, llvm::SelectionDAG::getConstant(), llvm::MVT::getIntegerVT(), llvm::SelectionDAG::getNode(), I, llvm::MipsISD::Ins, llvm::Or, llvm::ISD::OR, llvm::ISD::SHL, llvm::ISD::SRL, llvm::ISD::TRUNCATE, X, Y, and llvm::ISD::ZERO_EXTEND.

lowerFP_TO_SINT_STORE()

static SDValue lowerFP_TO_SINT_STORE ( StoreSDNode *  SD, SelectionDAG &  DAG, bool  SingleFloat  )

static

Definition at line 2874 of file MipsISelLowering.cpp.

References llvm::ISD::FP_TO_SINT, llvm::MemSDNode::getAlign(), llvm::StoreSDNode::getBasePtr(), llvm::MemSDNode::getChain(), llvm::MachineMemOperand::getFlags(), llvm::EVT::getFloatingPointVT(), llvm::MemSDNode::getMemOperand(), llvm::SelectionDAG::getNode(), llvm::SDValue::getOpcode(), llvm::SDValue::getOperand(), llvm::MemSDNode::getPointerInfo(), llvm::SelectionDAG::getStore(), llvm::StoreSDNode::getValue(), llvm::SDValue::getValueSizeInBits(), and llvm::MipsISD::TruncIntFP.

Referenced by llvm::MipsTargetLowering::lowerSTORE().

lowerUnalignedIntStore()

static SDValue lowerUnalignedIntStore ( StoreSDNode *  SD, SelectionDAG &  DAG, bool  IsLittle  )

static

Definition at line 2845 of file MipsISelLowering.cpp.

References assert(), createStoreLR(), llvm::MemSDNode::getChain(), llvm::StoreSDNode::getValue(), llvm::StoreSDNode::isTruncatingStore(), llvm::MipsISD::SDL, llvm::MipsISD::SDR, llvm::MipsISD::SWL, and llvm::MipsISD::SWR.

Referenced by llvm::MipsTargetLowering::lowerSTORE().

parsePhysicalReg()

static std::pair< bool, bool > parsePhysicalReg ( StringRef  C, StringRef &  Prefix, unsigned long long &  Reg  )

static

This is a helper function to parse a physical register string and split it into non-numeric and numeric parts (Prefix and Reg).

The first boolean flag that is returned indicates whether parsing was successful. The second flag is true if the numeric part exists.

Definition at line 4093 of file MipsISelLowering.cpp.

References B, llvm::CallingConv::C, llvm::getAsUnsignedInteger(), and I.

performADDCombine()

static SDValue performADDCombine ( SDNode *  N, SelectionDAG &  DAG, TargetLowering::DAGCombinerInfo &  DCI, const MipsSubtarget &  Subtarget  )

static

Definition at line 1129 of file MipsISelLowering.cpp.

References llvm::Add, llvm::ISD::ADD, DL, llvm::SelectionDAG::getNode(), llvm::MipsSubtarget::hasMips32(), llvm::MipsSubtarget::hasMips32r6(), llvm::MipsSubtarget::inMips16Mode(), llvm::TargetLowering::DAGCombinerInfo::isBeforeLegalizeOps(), llvm::MipsISD::Lo, llvm::Lo, N, performMADD_MSUBCombine(), and llvm::ISD::TargetJumpTable.

Referenced by llvm::MipsTargetLowering::PerformDAGCombine(), and llvm::RISCVTargetLowering::PerformDAGCombine().

performANDCombine()

static SDValue performANDCombine ( SDNode *  N, SelectionDAG &  DAG, TargetLowering::DAGCombinerInfo &  DCI, const MipsSubtarget &  Subtarget  )

static

Definition at line 795 of file MipsISelLowering.cpp.

References llvm::MipsISD::CIns, DL, llvm::MipsISD::Ext, llvm::SelectionDAG::getConstant(), llvm::SelectionDAG::getNode(), llvm::SDValue::getOpcode(), llvm::SDValue::getOperand(), llvm::EVT::getSizeInBits(), llvm::ConstantSDNode::getZExtValue(), llvm::MipsSubtarget::hasCnMips(), llvm::MipsSubtarget::hasExtractInsert(), llvm::TargetLowering::DAGCombinerInfo::isBeforeLegalizeOps(), llvm::isShiftedMask_64(), N, llvm::ISD::SHL, llvm::ISD::SRA, and llvm::ISD::SRL.

performCMovFPCombine()

static SDValue performCMovFPCombine ( SDNode *  N, SelectionDAG &  DAG, TargetLowering::DAGCombinerInfo &  DCI, const MipsSubtarget &  Subtarget  )

static

Definition at line 768 of file MipsISelLowering.cpp.

References llvm::MipsISD::CMovFP_F, llvm::MipsISD::CMovFP_T, llvm::SelectionDAG::getNode(), llvm::ConstantSDNode::getZExtValue(), llvm::TargetLowering::DAGCombinerInfo::isBeforeLegalizeOps(), and N.

Referenced by llvm::MipsTargetLowering::PerformDAGCombine().

performDivRemCombine()

static SDValue performDivRemCombine ( SDNode *  N, SelectionDAG &  DAG, TargetLowering::DAGCombinerInfo &  DCI, const MipsSubtarget &  Subtarget  )

static

Definition at line 578 of file MipsISelLowering.cpp.

References llvm::MipsISD::DivRem16, llvm::MipsISD::DivRemU16, DL, llvm::SelectionDAG::getCopyFromReg(), llvm::SelectionDAG::getEntryNode(), llvm::SelectionDAG::getNode(), llvm::SDValue::getValue(), llvm::TargetLowering::DAGCombinerInfo::isBeforeLegalizeOps(), N, llvm::SelectionDAG::ReplaceAllUsesOfValueWith(), and llvm::ISD::SDIVREM.

Referenced by llvm::MipsTargetLowering::PerformDAGCombine().

performMADD_MSUBCombine()

static SDValue performMADD_MSUBCombine ( SDNode *  ROOTNode, SelectionDAG &  CurDAG, const MipsSubtarget &  Subtarget  )

static

Definition at line 1019 of file MipsISelLowering.cpp.

References llvm::ISD::ADD, llvm::ISD::BUILD_PAIR, DL, llvm::SelectionDAG::getNode(), llvm::SDValue::getOpcode(), llvm::SDNode::getOpcode(), llvm::SDNode::getOperand(), llvm::SDNode::getValueType(), llvm::MipsSubtarget::hasMips64(), llvm::EVT::isVector(), llvm::MipsISD::MAdd, llvm::MipsISD::MAddu, llvm::MipsISD::MFHI, llvm::MipsISD::MFLO, llvm::MipsISD::MSub, llvm::MipsISD::MSubu, llvm::MipsISD::MTLOHI, llvm::ISD::MUL, llvm::ISD::SIGN_EXTEND, llvm::SelectionDAG::SplitScalar(), llvm::ISD::SUB, llvm::ISD::TRUNCATE, and llvm::ISD::ZERO_EXTEND.

Referenced by performADDCombine(), and performSUBCombine().

performORCombine()

static SDValue performORCombine ( SDNode *  N, SelectionDAG &  DAG, TargetLowering::DAGCombinerInfo &  DCI, const MipsSubtarget &  Subtarget  )

static

Definition at line 878 of file MipsISelLowering.cpp.

References llvm::ISD::AND, assert(), DL, llvm::SelectionDAG::getConstant(), llvm::SelectionDAG::getNode(), llvm::SDValue::getOpcode(), llvm::SDValue::getOperand(), llvm::SDNode::getOperand(), llvm::ConstantSDNode::getSExtValue(), llvm::EVT::getSizeInBits(), llvm::ConstantSDNode::getZExtValue(), llvm::MipsSubtarget::hasExtractInsert(), llvm::MipsSubtarget::hasMips64r2(), llvm::MipsISD::Ins, llvm::TargetLowering::DAGCombinerInfo::isBeforeLegalizeOps(), llvm::isShiftedMask_64(), N, llvm::ISD::SHL, and llvm::ISD::SRL.

performSELECTCombine()

static SDValue performSELECTCombine ( SDNode *  N, SelectionDAG &  DAG, TargetLowering::DAGCombinerInfo &  DCI, const MipsSubtarget &  Subtarget  )

static

Definition at line 687 of file MipsISelLowering.cpp.

References llvm::ISD::ADD, CC, DL, llvm::SelectionDAG::getNode(), llvm::SDValue::getOpcode(), llvm::SDValue::getOperand(), llvm::SelectionDAG::getSetCC(), llvm::ISD::getSetCCInverse(), llvm::ConstantSDNode::getSExtValue(), llvm::SDValue::getValueType(), llvm::ConstantSDNode::getZExtValue(), llvm::TargetLowering::DAGCombinerInfo::isBeforeLegalizeOps(), llvm::EVT::isInteger(), N, llvm::ISD::SELECT, and llvm::ISD::SETCC.

Referenced by llvm::MipsTargetLowering::PerformDAGCombine(), and llvm::RISCVTargetLowering::PerformDAGCombine().

performSHLCombine()

static SDValue performSHLCombine ( SDNode *  N, SelectionDAG &  DAG, TargetLowering::DAGCombinerInfo &  DCI, const MipsSubtarget &  Subtarget  )

static

Definition at line 1161 of file MipsISelLowering.cpp.

References llvm::ISD::AND, llvm::MipsISD::CIns, DL, llvm::SelectionDAG::getConstant(), llvm::SelectionDAG::getNode(), llvm::SDValue::getOpcode(), llvm::SDValue::getOperand(), llvm::EVT::getSizeInBits(), llvm::ConstantSDNode::getZExtValue(), llvm::MipsSubtarget::hasCnMips(), llvm::TargetLowering::DAGCombinerInfo::isBeforeLegalizeOps(), llvm::isShiftedMask_64(), and N.

Referenced by llvm::MipsTargetLowering::PerformDAGCombine(), and llvm::MipsSETargetLowering::PerformDAGCombine().

performSUBCombine()

static SDValue performSUBCombine ( SDNode *  N, SelectionDAG &  DAG, TargetLowering::DAGCombinerInfo &  DCI, const MipsSubtarget &  Subtarget  )

static

Definition at line 1114 of file MipsISelLowering.cpp.

References llvm::MipsSubtarget::hasMips32(), llvm::MipsSubtarget::hasMips32r6(), llvm::MipsSubtarget::inMips16Mode(), llvm::TargetLowering::DAGCombinerInfo::isBeforeLegalizeOps(), N, and performMADD_MSUBCombine().

Referenced by llvm::MipsTargetLowering::PerformDAGCombine(), and llvm::RISCVTargetLowering::PerformDAGCombine().

STATISTIC()

STATISTIC	(	NumTailCalls	,
		"Number of tail calls"
	)

UnpackFromArgumentSlot()

static SDValue UnpackFromArgumentSlot ( SDValue  Val, const CCValAssign &  VA, EVT  ArgVT, const SDLoc &  DL, SelectionDAG &  DAG  )

static

Definition at line 3646 of file MipsISelLowering.cpp.

References llvm::CCValAssign::AExt, llvm::CCValAssign::AExtUpper, llvm::ISD::AssertSext, llvm::ISD::AssertZext, llvm::CCValAssign::BCvt, llvm::ISD::BITCAST, DL, llvm::CCValAssign::Full, llvm::SelectionDAG::getConstant(), llvm::CCValAssign::getLocInfo(), llvm::CCValAssign::getLocVT(), llvm::SelectionDAG::getNode(), llvm::EVT::getSizeInBits(), llvm::MVT::getSizeInBits(), llvm::SelectionDAG::getValueType(), llvm::CCValAssign::getValVT(), llvm_unreachable, llvm::CCValAssign::SExt, llvm::CCValAssign::SExtUpper, llvm::ISD::SRA, llvm::ISD::SRL, llvm::ISD::TRUNCATE, llvm::CCValAssign::ZExt, and llvm::CCValAssign::ZExtUpper.

Variable Documentation

EmitJalrReloc

cl::opt<bool> EmitJalrReloc

extern

Mips64DPRegs

const MCPhysReg Mips64DPRegs[8]

static

Initial value:

= {
  Mips::D12_64, Mips::D13_64, Mips::D14_64, Mips::D15_64,
  Mips::D16_64, Mips::D17_64, Mips::D18_64, Mips::D19_64
}

Definition at line 91 of file MipsISelLowering.cpp.

Referenced by llvm::MipsTargetLowering::HandleByVal().

NoZeroDivCheck

cl::opt< bool > NoZeroDivCheck("mno-check-zero-division", cl::Hidden, cl::desc("MIPS: Don't trap on integer division by zero."), cl::init(false)) ( "mno-check-zero-division"  , cl::Hidden  , cl::desc("MIPS: Don't trap on integer division by zero.")  , cl::init(false)    )

static

Referenced by insertDivByZeroTrap().