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LLVM 22.0.0git
Macros | Functions | Variables
MipsSEISelLowering.cpp File Reference
#include "MipsSEISelLowering.h"
#include "MipsMachineFunction.h"
#include "MipsRegisterInfo.h"
#include "MipsSubtarget.h"
#include "llvm/ADT/APInt.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/CodeGenTypes/MachineValueType.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/raw_ostream.h"
#include "llvm/TargetParser/Triple.h"
#include <algorithm>
#include <cassert>
#include <cstddef>
#include <cstdint>
#include <iterator>
#include <utility>

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, const bool isSPLATI, 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 52 of file MipsSEISelLowering.cpp.

Function Documentation

◆ extractLOHI()

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

Definition at line 1334 of file MipsSEISelLowering.cpp.

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

Referenced by lowerDSPIntr().

◆ fitsRegularPattern()

template<typename ValType>
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 2646 of file MipsSEISelLowering.cpp.

References I.

◆ genConstMult()

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

Definition at line 831 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()

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

Definition at line 1466 of file MipsSEISelLowering.cpp.

References AbstractManglingParser< Derived, Alloc >::Ops, llvm::ArrayRef(), DL, llvm::SelectionDAG::getBuildVector(), llvm::SelectionDAG::getConstant(), llvm::SelectionDAG::getNode(), llvm::EVT::getVectorNumElements(), llvm::ISD::SRL, std::swap(), and llvm::ISD::TRUNCATE.

Referenced by lowerMSABinaryBitImmIntr(), and truncateVecElts().

◆ initAccumulator()

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

Definition at line 1328 of file MipsSEISelLowering.cpp.

References DL, llvm::SelectionDAG::getNode(), llvm::MipsISD::MTLOHI, and llvm::SelectionDAG::SplitScalar().

Referenced by lowerDSPIntr().

◆ isBitwiseInverse()

bool isBitwiseInverse ( SDValue N,
SDValue OfNode )
static

Definition at line 616 of file MipsSEISelLowering.cpp.

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

Referenced by performORCombine().

◆ isConstantOrUndef()

bool isConstantOrUndef ( const SDValue Op)
static

Definition at line 2468 of file MipsSEISelLowering.cpp.

References llvm::isa().

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

◆ isConstantOrUndefBUILD_VECTOR()

bool isConstantOrUndefBUILD_VECTOR ( const BuildVectorSDNode * Op)
static

Definition at line 2478 of file MipsSEISelLowering.cpp.

References isConstantOrUndef().

◆ isLegalDSPCondCode()

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

Definition at line 988 of file MipsSEISelLowering.cpp.

References 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, and llvm::ISD::SETULT.

Referenced by performSETCCCombine().

◆ isVECTOR_SHUFFLE_SPLATI()

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

Definition at line 2673 of file MipsSEISelLowering.cpp.

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

◆ isVectorAllOnes()

bool isVectorAllOnes ( SDValue N)
static

Definition at line 592 of file MipsSEISelLowering.cpp.

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

Referenced by isBitwiseInverse().

◆ isVSplat()

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

Definition at line 572 of file MipsSEISelLowering.cpp.

References llvm::dyn_cast(), and N.

Referenced by performORCombine().

◆ lowerDSPIntr()

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

Definition at line 1352 of file MipsSEISelLowering.cpp.

References AbstractManglingParser< Derived, Alloc >::Ops, assert(), DL, extractLOHI(), llvm::SelectionDAG::getMergeValues(), llvm::SDValue::getNode(), llvm::SelectionDAG::getNode(), llvm::SDNode::getValueType(), llvm::SDValue::getValueType(), initAccumulator(), Opc, llvm::SmallVectorTemplateBase< T, bool >::push_back(), SDValue(), and llvm::ISD::TargetConstant.

◆ lowerMSABinaryBitImmIntr()

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

Definition at line 1502 of file MipsSEISelLowering.cpp.

References DL, llvm::dyn_cast(), llvm::SelectionDAG::getBuildVector(), getBuildVectorSplat(), llvm::SelectionDAG::getConstant(), llvm::SDValue::getNode(), llvm::SelectionDAG::getNode(), llvm::APInt::lshr(), Opc, llvm::ISD::SHL, std::swap(), llvm::APInt::trunc(), and llvm::ISD::ZERO_EXTEND.

◆ lowerMSABitClear()

SDValue lowerMSABitClear ( SDValue Op,
SelectionDAG & DAG )
static

Definition at line 1559 of file MipsSEISelLowering.cpp.

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

◆ lowerMSABitClearImm()

SDValue lowerMSABitClearImm ( SDValue Op,
SelectionDAG & DAG )
static

Definition at line 1569 of file MipsSEISelLowering.cpp.

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

◆ lowerMSACopyIntr()

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

Definition at line 1400 of file MipsSEISelLowering.cpp.

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

◆ lowerMSALoadIntr()

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

Definition at line 2332 of file MipsSEISelLowering.cpp.

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

◆ lowerMSASplatImm()

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

Definition at line 1457 of file MipsSEISelLowering.cpp.

References llvm::cast(), and llvm::SelectionDAG::getConstant().

◆ lowerMSASplatZExt()

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

Definition at line 1413 of file MipsSEISelLowering.cpp.

References AbstractManglingParser< Derived, Alloc >::Ops, llvm::ISD::AND, llvm::ArrayRef(), DL, llvm::SelectionDAG::getBuildVector(), llvm::SelectionDAG::getConstant(), llvm::SelectionDAG::getNode(), llvm::SelectionDAG::getSubtarget(), llvm::MCSubtargetInfo::getTargetTriple(), llvm::EVT::getVectorNumElements(), llvm::isa(), llvm::Triple::isLittleEndian(), and std::swap().

◆ lowerMSAStoreIntr()

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

Definition at line 2406 of file MipsSEISelLowering.cpp.

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

◆ lowerVECTOR_SHUFFLE_ILVEV()

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

Definition at line 2705 of file MipsSEISelLowering.cpp.

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

◆ lowerVECTOR_SHUFFLE_ILVL()

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

Definition at line 2845 of file MipsSEISelLowering.cpp.

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

◆ lowerVECTOR_SHUFFLE_ILVOD()

SDValue lowerVECTOR_SHUFFLE_ILVOD ( 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(), fitsRegularPattern(), llvm::SelectionDAG::getNode(), llvm::MipsISD::ILVOD, SDValue(), and llvm::SmallVectorTemplateCommon< T, typename >::size().

◆ lowerVECTOR_SHUFFLE_ILVR()

SDValue lowerVECTOR_SHUFFLE_ILVR ( 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(), fitsRegularPattern(), llvm::SelectionDAG::getNode(), llvm::MipsISD::ILVR, SDValue(), and llvm::SmallVectorTemplateCommon< T, typename >::size().

◆ lowerVECTOR_SHUFFLE_PCKEV()

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

Definition at line 2893 of file MipsSEISelLowering.cpp.

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

◆ lowerVECTOR_SHUFFLE_PCKOD()

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

Definition at line 2936 of file MipsSEISelLowering.cpp.

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

◆ lowerVECTOR_SHUFFLE_SHF()

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

Definition at line 2592 of file MipsSEISelLowering.cpp.

References DL, llvm::SelectionDAG::getNode(), llvm::SelectionDAG::getTargetConstant(), SDValue(), llvm::MipsISD::SHF, and llvm::SmallVectorTemplateCommon< T, typename >::size().

◆ lowerVECTOR_SHUFFLE_VSHF()

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

Definition at line 2977 of file MipsSEISelLowering.cpp.

References AbstractManglingParser< Derived, Alloc >::Ops, assert(), llvm::EVT::changeVectorElementTypeToInteger(), DL, llvm::SelectionDAG::getBuildVector(), llvm::SelectionDAG::getNode(), llvm::SelectionDAG::getTargetConstant(), llvm::EVT::getVectorElementType(), llvm::EVT::getVectorNumElements(), llvm_unreachable, llvm::SmallVectorTemplateCommon< T, typename >::size(), and llvm::MipsISD::VSHF.

◆ performANDCombine()

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

Definition at line 520 of file MipsSEISelLowering.cpp.

References AbstractManglingParser< Derived, Alloc >::Ops, llvm::cast(), llvm::dyn_cast(), llvm::SelectionDAG::getNode(), llvm::SDNode::getNumOperands(), llvm::SDNode::getOpcode(), llvm::SDNode::getOperand(), llvm::EVT::getSizeInBits(), llvm::SDNode::getVTList(), llvm::MipsSubtarget::hasMSA(), llvm::Log2(), N, SDValue(), llvm::MipsISD::VEXTRACT_SEXT_ELT, and llvm::MipsISD::VEXTRACT_ZEXT_ELT.

◆ performDSPShiftCombine()

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

Definition at line 883 of file MipsSEISelLowering.cpp.

References DL, llvm::dyn_cast(), llvm::SelectionDAG::getConstant(), llvm::SelectionDAG::getNode(), llvm::APInt::getZExtValue(), llvm::MipsSubtarget::hasDSP(), llvm::BuildVectorSDNode::isConstantSplat(), llvm::MipsSubtarget::isLittle(), N, Opc, and SDValue().

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

◆ performMULCombine()

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

Definition at line 867 of file MipsSEISelLowering.cpp.

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

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

◆ performORCombine()

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

Definition at line 635 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(), isBitwiseInverse(), llvm::MipsSubtarget::isLittle(), isVSplat(), N, SDValue(), and llvm::ISD::VSELECT.

◆ performSETCCCombine()

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

Definition at line 1006 of file MipsSEISelLowering.cpp.

References llvm::cast(), llvm::SelectionDAG::getNode(), isLegalDSPCondCode(), N, SDValue(), and llvm::MipsISD::SETCC_DSP.

◆ performSHLCombine()

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

Definition at line 908 of file MipsSEISelLowering.cpp.

References N, performDSPShiftCombine(), SDValue(), and llvm::MipsISD::SHLL_DSP.

◆ performSRACombine()

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

Definition at line 931 of file MipsSEISelLowering.cpp.

References AbstractManglingParser< Derived, Alloc >::Ops, llvm::cast(), llvm::dyn_cast(), 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(), SDValue(), llvm::ISD::SHL, llvm::MipsISD::SHRA_DSP, llvm::MipsISD::VEXTRACT_SEXT_ELT, and llvm::MipsISD::VEXTRACT_ZEXT_ELT.

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

◆ performSRLCombine()

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

Definition at line 977 of file MipsSEISelLowering.cpp.

References llvm::MipsSubtarget::hasDSPR2(), N, performDSPShiftCombine(), SDValue(), and llvm::MipsISD::SHRL_DSP.

◆ performVSELECTCombine()

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

Definition at line 1019 of file MipsSEISelLowering.cpp.

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

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

◆ performXORCombine()

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

Definition at line 1036 of file MipsSEISelLowering.cpp.

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

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

◆ shouldTransformMulToShiftsAddsSubs()

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

Definition at line 755 of file MipsSEISelLowering.cpp.

References llvm::BitWidth, llvm::CallingConv::C, llvm::SmallVectorTemplateCommon< T, typename >::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(), MaxSteps, llvm::SmallVectorImpl< T >::pop_back_val(), and llvm::SmallVectorTemplateBase< T, bool >::push_back().

Referenced by performMULCombine().

◆ truncateVecElts()

SDValue truncateVecElts ( SDValue Op,
SelectionDAG & DAG )
static

Definition at line 1546 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(), and llvm::Triple::isLittleEndian().

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
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