MipsSEISelLowering.cpp File Reference

#include "MipsSEISelLowering.h"
#include "MipsMachineFunction.h"
#include "MipsRegisterInfo.h"
#include "MipsSubtarget.h"
#include "llvm/ADT/APInt.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/CodeGen/CallingConvLower.h"
#include "llvm/CodeGen/ISDOpcodes.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineMemOperand.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/SelectionDAG.h"
#include "llvm/CodeGen/SelectionDAGNodes.h"
#include "llvm/CodeGen/TargetInstrInfo.h"
#include "llvm/CodeGen/TargetSubtargetInfo.h"
#include "llvm/CodeGen/ValueTypes.h"
#include "llvm/IR/DebugLoc.h"
#include "llvm/IR/Intrinsics.h"
#include "llvm/IR/IntrinsicsMips.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/MachineValueType.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/TargetParser/Triple.h"
#include <algorithm>
#include <cassert>
#include <cstdint>
#include <iterator>
#include <utility>

Include dependency graph for MipsSEISelLowering.cpp:

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "mips-isel"

Functions
static SDValue	performANDCombine (SDNode *N, SelectionDAG &DAG, TargetLowering::DAGCombinerInfo &DCI, const MipsSubtarget &Subtarget)
static bool	isVSplat (SDValue N, APInt &Imm, bool IsLittleEndian)
static bool	isVectorAllOnes (SDValue N)
static bool	isBitwiseInverse (SDValue N, SDValue OfNode)
static SDValue	performORCombine (SDNode *N, SelectionDAG &DAG, TargetLowering::DAGCombinerInfo &DCI, const MipsSubtarget &Subtarget)
static bool	shouldTransformMulToShiftsAddsSubs (APInt C, EVT VT, SelectionDAG &DAG, const MipsSubtarget &Subtarget)
static SDValue	genConstMult (SDValue X, APInt C, const SDLoc &DL, EVT VT, EVT ShiftTy, SelectionDAG &DAG)
static SDValue	performMULCombine (SDNode *N, SelectionDAG &DAG, const TargetLowering::DAGCombinerInfo &DCI, const MipsSETargetLowering *TL, const MipsSubtarget &Subtarget)
static SDValue	performDSPShiftCombine (unsigned Opc, SDNode *N, EVT Ty, SelectionDAG &DAG, const MipsSubtarget &Subtarget)
static SDValue	performSHLCombine (SDNode *N, SelectionDAG &DAG, TargetLowering::DAGCombinerInfo &DCI, const MipsSubtarget &Subtarget)
static SDValue	performSRACombine (SDNode *N, SelectionDAG &DAG, TargetLowering::DAGCombinerInfo &DCI, const MipsSubtarget &Subtarget)
static SDValue	performSRLCombine (SDNode *N, SelectionDAG &DAG, TargetLowering::DAGCombinerInfo &DCI, const MipsSubtarget &Subtarget)
static bool	isLegalDSPCondCode (EVT Ty, ISD::CondCode CC)
static SDValue	performSETCCCombine (SDNode *N, SelectionDAG &DAG)
static SDValue	performVSELECTCombine (SDNode *N, SelectionDAG &DAG)
static SDValue	performXORCombine (SDNode *N, SelectionDAG &DAG, const MipsSubtarget &Subtarget)
static SDValue	initAccumulator (SDValue In, const SDLoc &DL, SelectionDAG &DAG)
static SDValue	extractLOHI (SDValue Op, const SDLoc &DL, SelectionDAG &DAG)
static SDValue	lowerDSPIntr (SDValue Op, SelectionDAG &DAG, unsigned Opc)
static SDValue	lowerMSACopyIntr (SDValue Op, SelectionDAG &DAG, unsigned Opc)
static SDValue	lowerMSASplatZExt (SDValue Op, unsigned OpNr, SelectionDAG &DAG)
static SDValue	lowerMSASplatImm (SDValue Op, unsigned ImmOp, SelectionDAG &DAG, bool IsSigned=false)
static SDValue	getBuildVectorSplat (EVT VecTy, SDValue SplatValue, bool BigEndian, SelectionDAG &DAG)
static SDValue	lowerMSABinaryBitImmIntr (SDValue Op, SelectionDAG &DAG, unsigned Opc, SDValue Imm, bool BigEndian)
static SDValue	truncateVecElts (SDValue Op, SelectionDAG &DAG)
static SDValue	lowerMSABitClear (SDValue Op, SelectionDAG &DAG)
static SDValue	lowerMSABitClearImm (SDValue Op, SelectionDAG &DAG)
static SDValue	lowerMSALoadIntr (SDValue Op, SelectionDAG &DAG, unsigned Intr, const MipsSubtarget &Subtarget)
static SDValue	lowerMSAStoreIntr (SDValue Op, SelectionDAG &DAG, unsigned Intr, const MipsSubtarget &Subtarget)
static bool	isConstantOrUndef (const SDValue Op)
static bool	isConstantOrUndefBUILD_VECTOR (const BuildVectorSDNode *Op)
static SDValue	lowerVECTOR_SHUFFLE_SHF (SDValue Op, EVT ResTy, SmallVector< int, 16 > Indices, SelectionDAG &DAG)
template<typename ValType >
static bool	fitsRegularPattern (typename SmallVectorImpl< ValType >::const_iterator Begin, unsigned CheckStride, typename SmallVectorImpl< ValType >::const_iterator End, ValType ExpectedIndex, unsigned ExpectedIndexStride)
	Determine whether a range fits a regular pattern of values.
static bool	isVECTOR_SHUFFLE_SPLATI (SDValue Op, EVT ResTy, SmallVector< int, 16 > Indices, SelectionDAG &DAG)
static SDValue	lowerVECTOR_SHUFFLE_ILVEV (SDValue Op, EVT ResTy, SmallVector< int, 16 > Indices, SelectionDAG &DAG)
static SDValue	lowerVECTOR_SHUFFLE_ILVOD (SDValue Op, EVT ResTy, SmallVector< int, 16 > Indices, SelectionDAG &DAG)
static SDValue	lowerVECTOR_SHUFFLE_ILVR (SDValue Op, EVT ResTy, SmallVector< int, 16 > Indices, SelectionDAG &DAG)
static SDValue	lowerVECTOR_SHUFFLE_ILVL (SDValue Op, EVT ResTy, SmallVector< int, 16 > Indices, SelectionDAG &DAG)
static SDValue	lowerVECTOR_SHUFFLE_PCKEV (SDValue Op, EVT ResTy, SmallVector< int, 16 > Indices, SelectionDAG &DAG)
static SDValue	lowerVECTOR_SHUFFLE_PCKOD (SDValue Op, EVT ResTy, SmallVector< int, 16 > Indices, SelectionDAG &DAG)
static SDValue	lowerVECTOR_SHUFFLE_VSHF (SDValue Op, EVT ResTy, const SmallVector< int, 16 > &Indices, SelectionDAG &DAG)

Variables
static cl::opt< bool >	UseMipsTailCalls ("mips-tail-calls", cl::Hidden, cl::desc("MIPS: permit tail calls."), cl::init(false))
static cl::opt< bool >	NoDPLoadStore ("mno-ldc1-sdc1", cl::init(false), cl::desc("Expand double precision loads and " "stores to their single precision " "counterparts"))

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "mips-isel"

Definition at line 53 of file MipsSEISelLowering.cpp.

Function Documentation

extractLOHI()

static SDValue extractLOHI ( SDValue  Op, const SDLoc &  DL, SelectionDAG &  DAG  )

static

Definition at line 1287 of file MipsSEISelLowering.cpp.

References llvm::ISD::BUILD_PAIR, DL, llvm::SelectionDAG::getNode(), llvm::Hi, llvm::MVT::i32, llvm::MVT::i64, llvm::Lo, llvm::MipsISD::MFHI, and llvm::MipsISD::MFLO.

Referenced by lowerDSPIntr().

fitsRegularPattern()

template<typename ValType >

static bool fitsRegularPattern ( typename SmallVectorImpl< ValType >::const_iterator  Begin, unsigned  CheckStride, typename SmallVectorImpl< ValType >::const_iterator  End, ValType  ExpectedIndex, unsigned  ExpectedIndexStride  )

static

Determine whether a range fits a regular pattern of values.

This function accounts for the possibility of jumping over the End iterator.

Definition at line 2599 of file MipsSEISelLowering.cpp.

References I.

genConstMult()

static SDValue genConstMult ( SDValue  X, APInt  C, const SDLoc &  DL, EVT  VT, EVT  ShiftTy, SelectionDAG &  DAG  )

static

Definition at line 786 of file MipsSEISelLowering.cpp.

References llvm::ISD::ADD, llvm::BitWidth, llvm::CallingConv::C, DL, genConstMult(), llvm::SelectionDAG::getConstant(), llvm::SelectionDAG::getNode(), llvm::ISD::SHL, llvm::ISD::SUB, and X.

Referenced by genConstMult(), and performMULCombine().

getBuildVectorSplat()

static SDValue getBuildVectorSplat ( EVT  VecTy, SDValue  SplatValue, bool  BigEndian, SelectionDAG &  DAG  )

static

Definition at line 1419 of file MipsSEISelLowering.cpp.

References llvm::ISD::BITCAST, DL, llvm::SelectionDAG::getBuildVector(), llvm::SelectionDAG::getConstant(), llvm::SelectionDAG::getNode(), llvm::EVT::getVectorNumElements(), llvm::MVT::i32, llvm::MVT::i64, llvm::ISD::SRL, std::swap(), llvm::ISD::TRUNCATE, llvm::MVT::v2i64, and llvm::MVT::v4i32.

Referenced by lowerMSABinaryBitImmIntr(), and truncateVecElts().

initAccumulator()

static SDValue initAccumulator ( SDValue  In, const SDLoc &  DL, SelectionDAG &  DAG  )

static

Definition at line 1279 of file MipsSEISelLowering.cpp.

References DL, llvm::ISD::EXTRACT_ELEMENT, llvm::SelectionDAG::getConstant(), llvm::SelectionDAG::getNode(), llvm::MVT::i32, llvm::MipsISD::MTLOHI, and llvm::MVT::Untyped.

Referenced by lowerDSPIntr().

isBitwiseInverse()

static bool isBitwiseInverse ( SDValue  N, SDValue  OfNode  )

static

Definition at line 571 of file MipsSEISelLowering.cpp.

References isVectorAllOnes(), N, and llvm::ISD::XOR.

Referenced by performORCombine().

isConstantOrUndef()

static bool isConstantOrUndef ( const SDValue  Op )

static

Definition at line 2421 of file MipsSEISelLowering.cpp.

Referenced by isConstantOrUndefBUILD_VECTOR(), isVMerge(), llvm::PPC::isVPKUDUMShuffleMask(), llvm::PPC::isVPKUHUMShuffleMask(), llvm::PPC::isVPKUWUMShuffleMask(), and llvm::PPC::isVSLDOIShuffleMask().

isConstantOrUndefBUILD_VECTOR()

static bool isConstantOrUndefBUILD_VECTOR ( const BuildVectorSDNode *  Op )

static

Definition at line 2431 of file MipsSEISelLowering.cpp.

References isConstantOrUndef().

isLegalDSPCondCode()

static bool isLegalDSPCondCode ( EVT  Ty, ISD::CondCode  CC  )

static

Definition at line 943 of file MipsSEISelLowering.cpp.

References CC, llvm::ISD::SETEQ, llvm::ISD::SETGE, llvm::ISD::SETGT, llvm::ISD::SETLE, llvm::ISD::SETLT, llvm::ISD::SETNE, llvm::ISD::SETUGE, llvm::ISD::SETUGT, llvm::ISD::SETULE, llvm::ISD::SETULT, and llvm::MVT::v2i16.

Referenced by performSETCCCombine().

isVECTOR_SHUFFLE_SPLATI()

static bool isVECTOR_SHUFFLE_SPLATI ( SDValue  Op, EVT  ResTy, SmallVector< int, 16 >  Indices, SelectionDAG &  DAG  )

static

Definition at line 2626 of file MipsSEISelLowering.cpp.

References assert(), llvm::SmallVectorTemplateCommon< T, typename >::begin(), llvm::SmallVectorTemplateCommon< T, typename >::end(), and llvm::SmallVectorBase< Size_T >::size().

isVectorAllOnes()

static bool isVectorAllOnes ( SDValue  N )

static

Definition at line 547 of file MipsSEISelLowering.cpp.

References llvm::ISD::BITCAST, llvm::APInt::isAllOnes(), llvm::BuildVectorSDNode::isConstantSplat(), and N.

Referenced by isBitwiseInverse().

isVSplat()

static bool isVSplat ( SDValue  N, APInt &  Imm, bool  IsLittleEndian  )

static

Definition at line 527 of file MipsSEISelLowering.cpp.

References N.

Referenced by performORCombine().

lowerDSPIntr()

static SDValue lowerDSPIntr ( SDValue  Op, SelectionDAG &  DAG, unsigned  Opc  )

static

Definition at line 1305 of file MipsSEISelLowering.cpp.

References assert(), DL, extractLOHI(), llvm::SelectionDAG::getMergeValues(), llvm::SDValue::getNode(), llvm::SelectionDAG::getNode(), llvm::SDValue::getValueType(), llvm::SDNode::getValueType(), llvm::MVT::i64, initAccumulator(), llvm::MVT::Other, llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::ISD::TargetConstant, and llvm::MVT::Untyped.

lowerMSABinaryBitImmIntr()

static SDValue lowerMSABinaryBitImmIntr ( SDValue  Op, SelectionDAG &  DAG, unsigned  Opc, SDValue  Imm, bool  BigEndian  )

static

Definition at line 1455 of file MipsSEISelLowering.cpp.

References llvm::ISD::BITCAST, DL, llvm::SelectionDAG::getBuildVector(), getBuildVectorSplat(), llvm::SelectionDAG::getConstant(), llvm::SDValue::getNode(), llvm::SelectionDAG::getNode(), llvm::MVT::i32, llvm::MVT::i64, llvm::APInt::lshr(), llvm::ISD::SHL, std::swap(), llvm::APInt::trunc(), llvm::MVT::v2i64, llvm::MVT::v4i32, and llvm::ISD::ZERO_EXTEND.

lowerMSABitClear()

static SDValue lowerMSABitClear ( SDValue  Op, SelectionDAG &  DAG  )

static

Definition at line 1512 of file MipsSEISelLowering.cpp.

References llvm::ISD::AND, DL, llvm::SelectionDAG::getConstant(), llvm::SelectionDAG::getNode(), llvm::SelectionDAG::getNOT(), llvm::ISD::SHL, and truncateVecElts().

lowerMSABitClearImm()

static SDValue lowerMSABitClearImm ( SDValue  Op, SelectionDAG &  DAG  )

static

Definition at line 1522 of file MipsSEISelLowering.cpp.

References llvm::ISD::AND, DL, llvm::SelectionDAG::getConstant(), llvm::SelectionDAG::getNode(), and llvm::EVT::getScalarSizeInBits().

lowerMSACopyIntr()

static SDValue lowerMSACopyIntr ( SDValue  Op, SelectionDAG &  DAG, unsigned  Opc  )

static

Definition at line 1353 of file MipsSEISelLowering.cpp.

References DL, llvm::SelectionDAG::getNode(), llvm::SelectionDAG::getValueType(), llvm::SDNode::getValueType(), llvm::EVT::getVectorElementType(), and Idx.

lowerMSALoadIntr()

static SDValue lowerMSALoadIntr ( SDValue  Op, SelectionDAG &  DAG, unsigned  Intr, const MipsSubtarget &  Subtarget  )

static

Definition at line 2285 of file MipsSEISelLowering.cpp.

References llvm::ISD::ADD, llvm::Address, DL, llvm::SelectionDAG::getLoad(), llvm::SelectionDAG::getNode(), llvm::MipsSubtarget::isABI_N64(), llvm::Offset, and llvm::ISD::SIGN_EXTEND.

lowerMSASplatImm()

static SDValue lowerMSASplatImm ( SDValue  Op, unsigned  ImmOp, SelectionDAG &  DAG, bool  IsSigned = false  )

static

Definition at line 1410 of file MipsSEISelLowering.cpp.

References llvm::SelectionDAG::getConstant().

lowerMSASplatZExt()

static SDValue lowerMSASplatZExt ( SDValue  Op, unsigned  OpNr, SelectionDAG &  DAG  )

static

Definition at line 1366 of file MipsSEISelLowering.cpp.

References llvm::ISD::AND, llvm::ISD::BITCAST, DL, llvm::SelectionDAG::getBuildVector(), llvm::SelectionDAG::getConstant(), llvm::SelectionDAG::getNode(), llvm::SelectionDAG::getSubtarget(), llvm::MCSubtargetInfo::getTargetTriple(), llvm::EVT::getVectorNumElements(), llvm::MVT::i32, llvm::Triple::isLittleEndian(), std::swap(), llvm::MVT::v2i64, and llvm::MVT::v4i32.

lowerMSAStoreIntr()

static SDValue lowerMSAStoreIntr ( SDValue  Op, SelectionDAG &  DAG, unsigned  Intr, const MipsSubtarget &  Subtarget  )

static

Definition at line 2359 of file MipsSEISelLowering.cpp.

References llvm::ISD::ADD, llvm::Address, DL, llvm::SelectionDAG::getNode(), llvm::SelectionDAG::getStore(), llvm::MipsSubtarget::isABI_N64(), llvm::Offset, and llvm::ISD::SIGN_EXTEND.

lowerVECTOR_SHUFFLE_ILVEV()

static SDValue lowerVECTOR_SHUFFLE_ILVEV ( SDValue  Op, EVT  ResTy, SmallVector< int, 16 >  Indices, SelectionDAG &  DAG  )

static

Definition at line 2658 of file MipsSEISelLowering.cpp.

References assert(), llvm::SmallVectorTemplateCommon< T, typename >::begin(), llvm::SmallVectorTemplateCommon< T, typename >::end(), llvm::SelectionDAG::getNode(), llvm::MipsISD::ILVEV, and llvm::SmallVectorBase< Size_T >::size().

lowerVECTOR_SHUFFLE_ILVL()

static SDValue lowerVECTOR_SHUFFLE_ILVL ( SDValue  Op, EVT  ResTy, SmallVector< int, 16 >  Indices, SelectionDAG &  DAG  )

static

Definition at line 2798 of file MipsSEISelLowering.cpp.

References assert(), llvm::SmallVectorTemplateCommon< T, typename >::begin(), llvm::SmallVectorTemplateCommon< T, typename >::end(), llvm::SelectionDAG::getNode(), llvm::MipsISD::ILVL, and llvm::SmallVectorBase< Size_T >::size().

lowerVECTOR_SHUFFLE_ILVOD()

static SDValue lowerVECTOR_SHUFFLE_ILVOD ( SDValue  Op, EVT  ResTy, SmallVector< int, 16 >  Indices, SelectionDAG &  DAG  )

static

Definition at line 2704 of file MipsSEISelLowering.cpp.

References assert(), llvm::SmallVectorTemplateCommon< T, typename >::begin(), llvm::SmallVectorTemplateCommon< T, typename >::end(), llvm::SelectionDAG::getNode(), llvm::MipsISD::ILVOD, and llvm::SmallVectorBase< Size_T >::size().

lowerVECTOR_SHUFFLE_ILVR()

static SDValue lowerVECTOR_SHUFFLE_ILVR ( SDValue  Op, EVT  ResTy, SmallVector< int, 16 >  Indices, SelectionDAG &  DAG  )

static

Definition at line 2751 of file MipsSEISelLowering.cpp.

References assert(), llvm::SmallVectorTemplateCommon< T, typename >::begin(), llvm::SmallVectorTemplateCommon< T, typename >::end(), llvm::SelectionDAG::getNode(), llvm::MipsISD::ILVR, and llvm::SmallVectorBase< Size_T >::size().

lowerVECTOR_SHUFFLE_PCKEV()

static SDValue lowerVECTOR_SHUFFLE_PCKEV ( SDValue  Op, EVT  ResTy, SmallVector< int, 16 >  Indices, SelectionDAG &  DAG  )

static

Definition at line 2846 of file MipsSEISelLowering.cpp.

References assert(), llvm::SmallVectorTemplateCommon< T, typename >::begin(), llvm::SmallVectorTemplateCommon< T, typename >::end(), llvm::SelectionDAG::getNode(), llvm::MipsISD::PCKEV, and llvm::SmallVectorBase< Size_T >::size().

lowerVECTOR_SHUFFLE_PCKOD()

static SDValue lowerVECTOR_SHUFFLE_PCKOD ( SDValue  Op, EVT  ResTy, SmallVector< int, 16 >  Indices, SelectionDAG &  DAG  )

static

Definition at line 2889 of file MipsSEISelLowering.cpp.

References assert(), llvm::SmallVectorTemplateCommon< T, typename >::begin(), llvm::SmallVectorTemplateCommon< T, typename >::end(), llvm::SelectionDAG::getNode(), llvm::MipsISD::PCKOD, and llvm::SmallVectorBase< Size_T >::size().

lowerVECTOR_SHUFFLE_SHF()

static SDValue lowerVECTOR_SHUFFLE_SHF ( SDValue  Op, EVT  ResTy, SmallVector< int, 16 >  Indices, SelectionDAG &  DAG  )

static

Definition at line 2545 of file MipsSEISelLowering.cpp.

References DL, llvm::SelectionDAG::getNode(), llvm::SelectionDAG::getTargetConstant(), llvm::MVT::i32, Idx, llvm::MipsISD::SHF, and llvm::SmallVectorBase< Size_T >::size().

lowerVECTOR_SHUFFLE_VSHF()

static SDValue lowerVECTOR_SHUFFLE_VSHF ( SDValue  Op, EVT  ResTy, const SmallVector< int, 16 > &  Indices, SelectionDAG &  DAG  )

static

Definition at line 2925 of file MipsSEISelLowering.cpp.

References llvm::EVT::changeVectorElementTypeToInteger(), DL, llvm::SelectionDAG::getBuildVector(), llvm::SelectionDAG::getNode(), llvm::SelectionDAG::getTargetConstant(), llvm::EVT::getVectorElementType(), llvm::EVT::getVectorNumElements(), Idx, llvm_unreachable, llvm::SmallVectorTemplateBase< T, bool >::push_back(), and llvm::MipsISD::VSHF.

performANDCombine()

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

static

Definition at line 475 of file MipsSEISelLowering.cpp.

References llvm::SelectionDAG::getNode(), llvm::SDNode::getNumOperands(), llvm::SDNode::getOpcode(), llvm::SDNode::getOperand(), llvm::EVT::getSizeInBits(), llvm::SDNode::getVTList(), llvm::MipsSubtarget::hasMSA(), llvm::Log2(), N, llvm::MipsISD::VEXTRACT_SEXT_ELT, and llvm::MipsISD::VEXTRACT_ZEXT_ELT.

performDSPShiftCombine()

static SDValue performDSPShiftCombine ( unsigned  Opc, SDNode *  N, EVT  Ty, SelectionDAG &  DAG, const MipsSubtarget &  Subtarget  )

static

Definition at line 838 of file MipsSEISelLowering.cpp.

References DL, llvm::SelectionDAG::getConstant(), llvm::SelectionDAG::getNode(), llvm::EVT::getScalarSizeInBits(), llvm::APInt::getZExtValue(), llvm::MipsSubtarget::hasDSP(), llvm::MVT::i32, llvm::BuildVectorSDNode::isConstantSplat(), llvm::MipsSubtarget::isLittle(), and N.

Referenced by performSHLCombine(), performSRACombine(), and performSRLCombine().

performMULCombine()

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

static

Definition at line 822 of file MipsSEISelLowering.cpp.

References llvm::CallingConv::C, genConstMult(), llvm::SelectionDAG::getDataLayout(), llvm::MipsTargetLowering::getScalarShiftAmountTy(), llvm::EVT::isVector(), N, and shouldTransformMulToShiftsAddsSubs().

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

performORCombine()

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

static

Definition at line 590 of file MipsSEISelLowering.cpp.

References llvm::ISD::AND, assert(), Cond, llvm::APInt::getBitWidth(), llvm::SDValue::getNode(), llvm::SelectionDAG::getNode(), llvm::SDNode::getOpcode(), llvm::SDNode::getOperand(), llvm::MipsSubtarget::hasMSA(), llvm::EVT::is128BitVector(), isBitwiseInverse(), llvm::MipsSubtarget::isLittle(), isVSplat(), N, and llvm::ISD::VSELECT.

performSETCCCombine()

static SDValue performSETCCCombine ( SDNode *  N, SelectionDAG &  DAG  )

static

Definition at line 961 of file MipsSEISelLowering.cpp.

References llvm::SelectionDAG::getNode(), isLegalDSPCondCode(), N, llvm::MipsISD::SETCC_DSP, llvm::MVT::v2i16, and llvm::MVT::v4i8.

performSHLCombine()

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

static

Definition at line 863 of file MipsSEISelLowering.cpp.

References N, performDSPShiftCombine(), llvm::MipsISD::SHLL_DSP, llvm::MVT::v2i16, and llvm::MVT::v4i8.

performSRACombine()

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

static

Definition at line 886 of file MipsSEISelLowering.cpp.

References llvm::SelectionDAG::getNode(), llvm::SDNode::getNumOperands(), llvm::SDNode::getOpcode(), llvm::SDNode::getOperand(), llvm::EVT::getSizeInBits(), llvm::SDNode::getVTList(), llvm::ConstantSDNode::getZExtValue(), llvm::MipsSubtarget::hasDSPR2(), llvm::MipsSubtarget::hasMSA(), N, performDSPShiftCombine(), llvm::ISD::SHL, llvm::MipsISD::SHRA_DSP, llvm::MVT::v2i16, llvm::MVT::v4i8, llvm::MipsISD::VEXTRACT_SEXT_ELT, and llvm::MipsISD::VEXTRACT_ZEXT_ELT.

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

performSRLCombine()

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

static

Definition at line 932 of file MipsSEISelLowering.cpp.

References llvm::MipsSubtarget::hasDSPR2(), N, performDSPShiftCombine(), llvm::MipsISD::SHRL_DSP, llvm::MVT::v2i16, and llvm::MVT::v4i8.

performVSELECTCombine()

static SDValue performVSELECTCombine ( SDNode *  N, SelectionDAG &  DAG  )

static

Definition at line 974 of file MipsSEISelLowering.cpp.

References llvm::SelectionDAG::getNode(), llvm::SDValue::getOpcode(), llvm::SDValue::getOperand(), N, llvm::MipsISD::SELECT_CC_DSP, llvm::MipsISD::SETCC_DSP, llvm::MVT::v2i16, and llvm::MVT::v4i8.

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

performXORCombine()

static SDValue performXORCombine ( SDNode *  N, SelectionDAG &  DAG, const MipsSubtarget &  Subtarget  )

static

Definition at line 991 of file MipsSEISelLowering.cpp.

References llvm::SDValue::getNode(), llvm::SelectionDAG::getNode(), llvm::SDNode::getOpcode(), llvm::SDNode::getOperand(), llvm::MipsSubtarget::hasMSA(), llvm::EVT::is128BitVector(), llvm::ISD::isBuildVectorAllOnes(), llvm::EVT::isInteger(), N, llvm::ISD::OR, and llvm::MipsISD::VNOR.

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

shouldTransformMulToShiftsAddsSubs()

static bool shouldTransformMulToShiftsAddsSubs ( APInt  C, EVT  VT, SelectionDAG &  DAG, const MipsSubtarget &  Subtarget  )

static

Definition at line 710 of file MipsSEISelLowering.cpp.

References llvm::BitWidth, llvm::CallingConv::C, llvm::SmallVectorBase< Size_T >::empty(), llvm::SelectionDAG::getContext(), llvm::TargetLoweringBase::getRegisterType(), llvm::EVT::getSizeInBits(), llvm::MVT::getSizeInBits(), llvm::SelectionDAG::getTargetLoweringInfo(), llvm::MipsSubtarget::isABI_O32(), llvm::APInt::isNegative(), llvm::APInt::isPowerOf2(), llvm::APInt::logBase2(), llvm::SmallVectorImpl< T >::pop_back_val(), and llvm::SmallVectorTemplateBase< T, bool >::push_back().

Referenced by performMULCombine().

truncateVecElts()

static SDValue truncateVecElts ( SDValue  Op, SelectionDAG &  DAG  )

static

Definition at line 1499 of file MipsSEISelLowering.cpp.

References llvm::ISD::AND, DL, getBuildVectorSplat(), llvm::SelectionDAG::getConstant(), llvm::SelectionDAG::getNode(), llvm::SDValue::getScalarValueSizeInBits(), llvm::SelectionDAG::getSubtarget(), llvm::MCSubtargetInfo::getTargetTriple(), llvm::MVT::i32, llvm::MVT::i64, llvm::Triple::isLittleEndian(), and llvm::MVT::v2i64.

Referenced by lowerMSABitClear().

Variable Documentation

NoDPLoadStore

cl::opt< bool > NoDPLoadStore("mno-ldc1-sdc1", cl::init(false), cl::desc("Expand double precision loads and " "stores to their single precision " "counterparts")) ( "mno-ldc1-sdc1"  , cl::init(false)  , cl::desc("Expand double precision loads and " "stores to their single precision " "counterparts")    )

static

Referenced by llvm::MipsSETargetLowering::MipsSETargetLowering().

UseMipsTailCalls

cl::opt< bool > UseMipsTailCalls("mips-tail-calls", cl::Hidden, cl::desc("MIPS: permit tail calls."), cl::init(false)) ( "mips-tail-calls"  , cl::Hidden  , cl::desc("MIPS: permit tail calls.")  , cl::init(false)    )

static