diff options
Diffstat (limited to 'llvm/lib/CodeGen/GlobalISel/MachineIRBuilder.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/GlobalISel/MachineIRBuilder.cpp | 1180 | 
1 files changed, 1180 insertions, 0 deletions
| diff --git a/llvm/lib/CodeGen/GlobalISel/MachineIRBuilder.cpp b/llvm/lib/CodeGen/GlobalISel/MachineIRBuilder.cpp new file mode 100644 index 000000000000..df770f6664ca --- /dev/null +++ b/llvm/lib/CodeGen/GlobalISel/MachineIRBuilder.cpp @@ -0,0 +1,1180 @@ +//===-- llvm/CodeGen/GlobalISel/MachineIRBuilder.cpp - MIBuilder--*- C++ -*-==// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// +/// \file +/// This file implements the MachineIRBuidler class. +//===----------------------------------------------------------------------===// +#include "llvm/CodeGen/GlobalISel/MachineIRBuilder.h" +#include "llvm/CodeGen/GlobalISel/GISelChangeObserver.h" + +#include "llvm/CodeGen/MachineFunction.h" +#include "llvm/CodeGen/MachineInstr.h" +#include "llvm/CodeGen/MachineInstrBuilder.h" +#include "llvm/CodeGen/MachineRegisterInfo.h" +#include "llvm/CodeGen/TargetInstrInfo.h" +#include "llvm/CodeGen/TargetLowering.h" +#include "llvm/CodeGen/TargetOpcodes.h" +#include "llvm/CodeGen/TargetSubtargetInfo.h" +#include "llvm/IR/DebugInfo.h" + +using namespace llvm; + +void MachineIRBuilder::setMF(MachineFunction &MF) { +  State.MF = &MF; +  State.MBB = nullptr; +  State.MRI = &MF.getRegInfo(); +  State.TII = MF.getSubtarget().getInstrInfo(); +  State.DL = DebugLoc(); +  State.II = MachineBasicBlock::iterator(); +  State.Observer = nullptr; +} + +void MachineIRBuilder::setMBB(MachineBasicBlock &MBB) { +  State.MBB = &MBB; +  State.II = MBB.end(); +  assert(&getMF() == MBB.getParent() && +         "Basic block is in a different function"); +} + +void MachineIRBuilder::setInstr(MachineInstr &MI) { +  assert(MI.getParent() && "Instruction is not part of a basic block"); +  setMBB(*MI.getParent()); +  State.II = MI.getIterator(); +} + +void MachineIRBuilder::setCSEInfo(GISelCSEInfo *Info) { State.CSEInfo = Info; } + +void MachineIRBuilder::setInsertPt(MachineBasicBlock &MBB, +                                   MachineBasicBlock::iterator II) { +  assert(MBB.getParent() == &getMF() && +         "Basic block is in a different function"); +  State.MBB = &MBB; +  State.II = II; +} + +void MachineIRBuilder::recordInsertion(MachineInstr *InsertedInstr) const { +  if (State.Observer) +    State.Observer->createdInstr(*InsertedInstr); +} + +void MachineIRBuilder::setChangeObserver(GISelChangeObserver &Observer) { +  State.Observer = &Observer; +} + +void MachineIRBuilder::stopObservingChanges() { State.Observer = nullptr; } + +//------------------------------------------------------------------------------ +// Build instruction variants. +//------------------------------------------------------------------------------ + +MachineInstrBuilder MachineIRBuilder::buildInstr(unsigned Opcode) { +  return insertInstr(buildInstrNoInsert(Opcode)); +} + +MachineInstrBuilder MachineIRBuilder::buildInstrNoInsert(unsigned Opcode) { +  MachineInstrBuilder MIB = BuildMI(getMF(), getDL(), getTII().get(Opcode)); +  return MIB; +} + +MachineInstrBuilder MachineIRBuilder::insertInstr(MachineInstrBuilder MIB) { +  getMBB().insert(getInsertPt(), MIB); +  recordInsertion(MIB); +  return MIB; +} + +MachineInstrBuilder +MachineIRBuilder::buildDirectDbgValue(Register Reg, const MDNode *Variable, +                                      const MDNode *Expr) { +  assert(isa<DILocalVariable>(Variable) && "not a variable"); +  assert(cast<DIExpression>(Expr)->isValid() && "not an expression"); +  assert( +      cast<DILocalVariable>(Variable)->isValidLocationForIntrinsic(getDL()) && +      "Expected inlined-at fields to agree"); +  return insertInstr(BuildMI(getMF(), getDL(), +                             getTII().get(TargetOpcode::DBG_VALUE), +                             /*IsIndirect*/ false, Reg, Variable, Expr)); +} + +MachineInstrBuilder +MachineIRBuilder::buildIndirectDbgValue(Register Reg, const MDNode *Variable, +                                        const MDNode *Expr) { +  assert(isa<DILocalVariable>(Variable) && "not a variable"); +  assert(cast<DIExpression>(Expr)->isValid() && "not an expression"); +  assert( +      cast<DILocalVariable>(Variable)->isValidLocationForIntrinsic(getDL()) && +      "Expected inlined-at fields to agree"); +  // DBG_VALUE insts now carry IR-level indirection in their DIExpression +  // rather than encoding it in the instruction itself. +  const DIExpression *DIExpr = cast<DIExpression>(Expr); +  DIExpr = DIExpression::append(DIExpr, {dwarf::DW_OP_deref}); +  return insertInstr(BuildMI(getMF(), getDL(), +                             getTII().get(TargetOpcode::DBG_VALUE), +                             /*IsIndirect*/ false, Reg, Variable, DIExpr)); +} + +MachineInstrBuilder MachineIRBuilder::buildFIDbgValue(int FI, +                                                      const MDNode *Variable, +                                                      const MDNode *Expr) { +  assert(isa<DILocalVariable>(Variable) && "not a variable"); +  assert(cast<DIExpression>(Expr)->isValid() && "not an expression"); +  assert( +      cast<DILocalVariable>(Variable)->isValidLocationForIntrinsic(getDL()) && +      "Expected inlined-at fields to agree"); +  // DBG_VALUE insts now carry IR-level indirection in their DIExpression +  // rather than encoding it in the instruction itself. +  const DIExpression *DIExpr = cast<DIExpression>(Expr); +  DIExpr = DIExpression::append(DIExpr, {dwarf::DW_OP_deref}); +  return buildInstr(TargetOpcode::DBG_VALUE) +      .addFrameIndex(FI) +      .addReg(0) +      .addMetadata(Variable) +      .addMetadata(DIExpr); +} + +MachineInstrBuilder MachineIRBuilder::buildConstDbgValue(const Constant &C, +                                                         const MDNode *Variable, +                                                         const MDNode *Expr) { +  assert(isa<DILocalVariable>(Variable) && "not a variable"); +  assert(cast<DIExpression>(Expr)->isValid() && "not an expression"); +  assert( +      cast<DILocalVariable>(Variable)->isValidLocationForIntrinsic(getDL()) && +      "Expected inlined-at fields to agree"); +  auto MIB = buildInstr(TargetOpcode::DBG_VALUE); +  if (auto *CI = dyn_cast<ConstantInt>(&C)) { +    if (CI->getBitWidth() > 64) +      MIB.addCImm(CI); +    else +      MIB.addImm(CI->getZExtValue()); +  } else if (auto *CFP = dyn_cast<ConstantFP>(&C)) { +    MIB.addFPImm(CFP); +  } else { +    // Insert %noreg if we didn't find a usable constant and had to drop it. +    MIB.addReg(0U); +  } + +  return MIB.addReg(0).addMetadata(Variable).addMetadata(Expr); +} + +MachineInstrBuilder MachineIRBuilder::buildDbgLabel(const MDNode *Label) { +  assert(isa<DILabel>(Label) && "not a label"); +  assert(cast<DILabel>(Label)->isValidLocationForIntrinsic(State.DL) && +         "Expected inlined-at fields to agree"); +  auto MIB = buildInstr(TargetOpcode::DBG_LABEL); + +  return MIB.addMetadata(Label); +} + +MachineInstrBuilder MachineIRBuilder::buildDynStackAlloc(const DstOp &Res, +                                                         const SrcOp &Size, +                                                         unsigned Align) { +  assert(Res.getLLTTy(*getMRI()).isPointer() && "expected ptr dst type"); +  auto MIB = buildInstr(TargetOpcode::G_DYN_STACKALLOC); +  Res.addDefToMIB(*getMRI(), MIB); +  Size.addSrcToMIB(MIB); +  MIB.addImm(Align); +  return MIB; +} + +MachineInstrBuilder MachineIRBuilder::buildFrameIndex(const DstOp &Res, +                                                      int Idx) { +  assert(Res.getLLTTy(*getMRI()).isPointer() && "invalid operand type"); +  auto MIB = buildInstr(TargetOpcode::G_FRAME_INDEX); +  Res.addDefToMIB(*getMRI(), MIB); +  MIB.addFrameIndex(Idx); +  return MIB; +} + +MachineInstrBuilder MachineIRBuilder::buildGlobalValue(const DstOp &Res, +                                                       const GlobalValue *GV) { +  assert(Res.getLLTTy(*getMRI()).isPointer() && "invalid operand type"); +  assert(Res.getLLTTy(*getMRI()).getAddressSpace() == +             GV->getType()->getAddressSpace() && +         "address space mismatch"); + +  auto MIB = buildInstr(TargetOpcode::G_GLOBAL_VALUE); +  Res.addDefToMIB(*getMRI(), MIB); +  MIB.addGlobalAddress(GV); +  return MIB; +} + +MachineInstrBuilder MachineIRBuilder::buildJumpTable(const LLT PtrTy, +                                                     unsigned JTI) { +  return buildInstr(TargetOpcode::G_JUMP_TABLE, {PtrTy}, {}) +      .addJumpTableIndex(JTI); +} + +void MachineIRBuilder::validateBinaryOp(const LLT &Res, const LLT &Op0, +                                        const LLT &Op1) { +  assert((Res.isScalar() || Res.isVector()) && "invalid operand type"); +  assert((Res == Op0 && Res == Op1) && "type mismatch"); +} + +void MachineIRBuilder::validateShiftOp(const LLT &Res, const LLT &Op0, +                                       const LLT &Op1) { +  assert((Res.isScalar() || Res.isVector()) && "invalid operand type"); +  assert((Res == Op0) && "type mismatch"); +} + +MachineInstrBuilder MachineIRBuilder::buildGEP(const DstOp &Res, +                                               const SrcOp &Op0, +                                               const SrcOp &Op1) { +  assert(Res.getLLTTy(*getMRI()).isPointer() && +         Res.getLLTTy(*getMRI()) == Op0.getLLTTy(*getMRI()) && "type mismatch"); +  assert(Op1.getLLTTy(*getMRI()).isScalar() && "invalid offset type"); + +  return buildInstr(TargetOpcode::G_GEP, {Res}, {Op0, Op1}); +} + +Optional<MachineInstrBuilder> +MachineIRBuilder::materializeGEP(Register &Res, Register Op0, +                                 const LLT &ValueTy, uint64_t Value) { +  assert(Res == 0 && "Res is a result argument"); +  assert(ValueTy.isScalar()  && "invalid offset type"); + +  if (Value == 0) { +    Res = Op0; +    return None; +  } + +  Res = getMRI()->createGenericVirtualRegister(getMRI()->getType(Op0)); +  auto Cst = buildConstant(ValueTy, Value); +  return buildGEP(Res, Op0, Cst.getReg(0)); +} + +MachineInstrBuilder MachineIRBuilder::buildPtrMask(const DstOp &Res, +                                                   const SrcOp &Op0, +                                                   uint32_t NumBits) { +  assert(Res.getLLTTy(*getMRI()).isPointer() && +         Res.getLLTTy(*getMRI()) == Op0.getLLTTy(*getMRI()) && "type mismatch"); + +  auto MIB = buildInstr(TargetOpcode::G_PTR_MASK); +  Res.addDefToMIB(*getMRI(), MIB); +  Op0.addSrcToMIB(MIB); +  MIB.addImm(NumBits); +  return MIB; +} + +MachineInstrBuilder MachineIRBuilder::buildBr(MachineBasicBlock &Dest) { +  return buildInstr(TargetOpcode::G_BR).addMBB(&Dest); +} + +MachineInstrBuilder MachineIRBuilder::buildBrIndirect(Register Tgt) { +  assert(getMRI()->getType(Tgt).isPointer() && "invalid branch destination"); +  return buildInstr(TargetOpcode::G_BRINDIRECT).addUse(Tgt); +} + +MachineInstrBuilder MachineIRBuilder::buildBrJT(Register TablePtr, +                                                unsigned JTI, +                                                Register IndexReg) { +  assert(getMRI()->getType(TablePtr).isPointer() && +         "Table reg must be a pointer"); +  return buildInstr(TargetOpcode::G_BRJT) +      .addUse(TablePtr) +      .addJumpTableIndex(JTI) +      .addUse(IndexReg); +} + +MachineInstrBuilder MachineIRBuilder::buildCopy(const DstOp &Res, +                                                const SrcOp &Op) { +  return buildInstr(TargetOpcode::COPY, Res, Op); +} + +MachineInstrBuilder MachineIRBuilder::buildConstant(const DstOp &Res, +                                                    const ConstantInt &Val) { +  LLT Ty = Res.getLLTTy(*getMRI()); +  LLT EltTy = Ty.getScalarType(); +  assert(EltTy.getScalarSizeInBits() == Val.getBitWidth() && +         "creating constant with the wrong size"); + +  if (Ty.isVector()) { +    auto Const = buildInstr(TargetOpcode::G_CONSTANT) +    .addDef(getMRI()->createGenericVirtualRegister(EltTy)) +    .addCImm(&Val); +    return buildSplatVector(Res, Const); +  } + +  auto Const = buildInstr(TargetOpcode::G_CONSTANT); +  Res.addDefToMIB(*getMRI(), Const); +  Const.addCImm(&Val); +  return Const; +} + +MachineInstrBuilder MachineIRBuilder::buildConstant(const DstOp &Res, +                                                    int64_t Val) { +  auto IntN = IntegerType::get(getMF().getFunction().getContext(), +                               Res.getLLTTy(*getMRI()).getScalarSizeInBits()); +  ConstantInt *CI = ConstantInt::get(IntN, Val, true); +  return buildConstant(Res, *CI); +} + +MachineInstrBuilder MachineIRBuilder::buildFConstant(const DstOp &Res, +                                                     const ConstantFP &Val) { +  LLT Ty = Res.getLLTTy(*getMRI()); +  LLT EltTy = Ty.getScalarType(); + +  assert(APFloat::getSizeInBits(Val.getValueAPF().getSemantics()) +         == EltTy.getSizeInBits() && +         "creating fconstant with the wrong size"); + +  assert(!Ty.isPointer() && "invalid operand type"); + +  if (Ty.isVector()) { +    auto Const = buildInstr(TargetOpcode::G_FCONSTANT) +    .addDef(getMRI()->createGenericVirtualRegister(EltTy)) +    .addFPImm(&Val); + +    return buildSplatVector(Res, Const); +  } + +  auto Const = buildInstr(TargetOpcode::G_FCONSTANT); +  Res.addDefToMIB(*getMRI(), Const); +  Const.addFPImm(&Val); +  return Const; +} + +MachineInstrBuilder MachineIRBuilder::buildConstant(const DstOp &Res, +                                                    const APInt &Val) { +  ConstantInt *CI = ConstantInt::get(getMF().getFunction().getContext(), Val); +  return buildConstant(Res, *CI); +} + +MachineInstrBuilder MachineIRBuilder::buildFConstant(const DstOp &Res, +                                                     double Val) { +  LLT DstTy = Res.getLLTTy(*getMRI()); +  auto &Ctx = getMF().getFunction().getContext(); +  auto *CFP = +      ConstantFP::get(Ctx, getAPFloatFromSize(Val, DstTy.getScalarSizeInBits())); +  return buildFConstant(Res, *CFP); +} + +MachineInstrBuilder MachineIRBuilder::buildFConstant(const DstOp &Res, +                                                     const APFloat &Val) { +  auto &Ctx = getMF().getFunction().getContext(); +  auto *CFP = ConstantFP::get(Ctx, Val); +  return buildFConstant(Res, *CFP); +} + +MachineInstrBuilder MachineIRBuilder::buildBrCond(Register Tst, +                                                  MachineBasicBlock &Dest) { +  assert(getMRI()->getType(Tst).isScalar() && "invalid operand type"); + +  return buildInstr(TargetOpcode::G_BRCOND).addUse(Tst).addMBB(&Dest); +} + +MachineInstrBuilder MachineIRBuilder::buildLoad(const DstOp &Res, +                                                const SrcOp &Addr, +                                                MachineMemOperand &MMO) { +  return buildLoadInstr(TargetOpcode::G_LOAD, Res, Addr, MMO); +} + +MachineInstrBuilder MachineIRBuilder::buildLoadInstr(unsigned Opcode, +                                                     const DstOp &Res, +                                                     const SrcOp &Addr, +                                                     MachineMemOperand &MMO) { +  assert(Res.getLLTTy(*getMRI()).isValid() && "invalid operand type"); +  assert(Addr.getLLTTy(*getMRI()).isPointer() && "invalid operand type"); + +  auto MIB = buildInstr(Opcode); +  Res.addDefToMIB(*getMRI(), MIB); +  Addr.addSrcToMIB(MIB); +  MIB.addMemOperand(&MMO); +  return MIB; +} + +MachineInstrBuilder MachineIRBuilder::buildStore(const SrcOp &Val, +                                                 const SrcOp &Addr, +                                                 MachineMemOperand &MMO) { +  assert(Val.getLLTTy(*getMRI()).isValid() && "invalid operand type"); +  assert(Addr.getLLTTy(*getMRI()).isPointer() && "invalid operand type"); + +  auto MIB = buildInstr(TargetOpcode::G_STORE); +  Val.addSrcToMIB(MIB); +  Addr.addSrcToMIB(MIB); +  MIB.addMemOperand(&MMO); +  return MIB; +} + +MachineInstrBuilder MachineIRBuilder::buildUAddo(const DstOp &Res, +                                                 const DstOp &CarryOut, +                                                 const SrcOp &Op0, +                                                 const SrcOp &Op1) { +  return buildInstr(TargetOpcode::G_UADDO, {Res, CarryOut}, {Op0, Op1}); +} + +MachineInstrBuilder MachineIRBuilder::buildUAdde(const DstOp &Res, +                                                 const DstOp &CarryOut, +                                                 const SrcOp &Op0, +                                                 const SrcOp &Op1, +                                                 const SrcOp &CarryIn) { +  return buildInstr(TargetOpcode::G_UADDE, {Res, CarryOut}, +                    {Op0, Op1, CarryIn}); +} + +MachineInstrBuilder MachineIRBuilder::buildAnyExt(const DstOp &Res, +                                                  const SrcOp &Op) { +  return buildInstr(TargetOpcode::G_ANYEXT, Res, Op); +} + +MachineInstrBuilder MachineIRBuilder::buildSExt(const DstOp &Res, +                                                const SrcOp &Op) { +  return buildInstr(TargetOpcode::G_SEXT, Res, Op); +} + +MachineInstrBuilder MachineIRBuilder::buildZExt(const DstOp &Res, +                                                const SrcOp &Op) { +  return buildInstr(TargetOpcode::G_ZEXT, Res, Op); +} + +unsigned MachineIRBuilder::getBoolExtOp(bool IsVec, bool IsFP) const { +  const auto *TLI = getMF().getSubtarget().getTargetLowering(); +  switch (TLI->getBooleanContents(IsVec, IsFP)) { +  case TargetLoweringBase::ZeroOrNegativeOneBooleanContent: +    return TargetOpcode::G_SEXT; +  case TargetLoweringBase::ZeroOrOneBooleanContent: +    return TargetOpcode::G_ZEXT; +  default: +    return TargetOpcode::G_ANYEXT; +  } +} + +MachineInstrBuilder MachineIRBuilder::buildBoolExt(const DstOp &Res, +                                                   const SrcOp &Op, +                                                   bool IsFP) { +  unsigned ExtOp = getBoolExtOp(getMRI()->getType(Op.getReg()).isVector(), IsFP); +  return buildInstr(ExtOp, Res, Op); +} + +MachineInstrBuilder MachineIRBuilder::buildExtOrTrunc(unsigned ExtOpc, +                                                      const DstOp &Res, +                                                      const SrcOp &Op) { +  assert((TargetOpcode::G_ANYEXT == ExtOpc || TargetOpcode::G_ZEXT == ExtOpc || +          TargetOpcode::G_SEXT == ExtOpc) && +         "Expecting Extending Opc"); +  assert(Res.getLLTTy(*getMRI()).isScalar() || +         Res.getLLTTy(*getMRI()).isVector()); +  assert(Res.getLLTTy(*getMRI()).isScalar() == +         Op.getLLTTy(*getMRI()).isScalar()); + +  unsigned Opcode = TargetOpcode::COPY; +  if (Res.getLLTTy(*getMRI()).getSizeInBits() > +      Op.getLLTTy(*getMRI()).getSizeInBits()) +    Opcode = ExtOpc; +  else if (Res.getLLTTy(*getMRI()).getSizeInBits() < +           Op.getLLTTy(*getMRI()).getSizeInBits()) +    Opcode = TargetOpcode::G_TRUNC; +  else +    assert(Res.getLLTTy(*getMRI()) == Op.getLLTTy(*getMRI())); + +  return buildInstr(Opcode, Res, Op); +} + +MachineInstrBuilder MachineIRBuilder::buildSExtOrTrunc(const DstOp &Res, +                                                       const SrcOp &Op) { +  return buildExtOrTrunc(TargetOpcode::G_SEXT, Res, Op); +} + +MachineInstrBuilder MachineIRBuilder::buildZExtOrTrunc(const DstOp &Res, +                                                       const SrcOp &Op) { +  return buildExtOrTrunc(TargetOpcode::G_ZEXT, Res, Op); +} + +MachineInstrBuilder MachineIRBuilder::buildAnyExtOrTrunc(const DstOp &Res, +                                                         const SrcOp &Op) { +  return buildExtOrTrunc(TargetOpcode::G_ANYEXT, Res, Op); +} + +MachineInstrBuilder MachineIRBuilder::buildCast(const DstOp &Dst, +                                                const SrcOp &Src) { +  LLT SrcTy = Src.getLLTTy(*getMRI()); +  LLT DstTy = Dst.getLLTTy(*getMRI()); +  if (SrcTy == DstTy) +    return buildCopy(Dst, Src); + +  unsigned Opcode; +  if (SrcTy.isPointer() && DstTy.isScalar()) +    Opcode = TargetOpcode::G_PTRTOINT; +  else if (DstTy.isPointer() && SrcTy.isScalar()) +    Opcode = TargetOpcode::G_INTTOPTR; +  else { +    assert(!SrcTy.isPointer() && !DstTy.isPointer() && "n G_ADDRCAST yet"); +    Opcode = TargetOpcode::G_BITCAST; +  } + +  return buildInstr(Opcode, Dst, Src); +} + +MachineInstrBuilder MachineIRBuilder::buildExtract(const DstOp &Dst, +                                                   const SrcOp &Src, +                                                   uint64_t Index) { +  LLT SrcTy = Src.getLLTTy(*getMRI()); +  LLT DstTy = Dst.getLLTTy(*getMRI()); + +#ifndef NDEBUG +  assert(SrcTy.isValid() && "invalid operand type"); +  assert(DstTy.isValid() && "invalid operand type"); +  assert(Index + DstTy.getSizeInBits() <= SrcTy.getSizeInBits() && +         "extracting off end of register"); +#endif + +  if (DstTy.getSizeInBits() == SrcTy.getSizeInBits()) { +    assert(Index == 0 && "insertion past the end of a register"); +    return buildCast(Dst, Src); +  } + +  auto Extract = buildInstr(TargetOpcode::G_EXTRACT); +  Dst.addDefToMIB(*getMRI(), Extract); +  Src.addSrcToMIB(Extract); +  Extract.addImm(Index); +  return Extract; +} + +void MachineIRBuilder::buildSequence(Register Res, ArrayRef<Register> Ops, +                                     ArrayRef<uint64_t> Indices) { +#ifndef NDEBUG +  assert(Ops.size() == Indices.size() && "incompatible args"); +  assert(!Ops.empty() && "invalid trivial sequence"); +  assert(std::is_sorted(Indices.begin(), Indices.end()) && +         "sequence offsets must be in ascending order"); + +  assert(getMRI()->getType(Res).isValid() && "invalid operand type"); +  for (auto Op : Ops) +    assert(getMRI()->getType(Op).isValid() && "invalid operand type"); +#endif + +  LLT ResTy = getMRI()->getType(Res); +  LLT OpTy = getMRI()->getType(Ops[0]); +  unsigned OpSize = OpTy.getSizeInBits(); +  bool MaybeMerge = true; +  for (unsigned i = 0; i < Ops.size(); ++i) { +    if (getMRI()->getType(Ops[i]) != OpTy || Indices[i] != i * OpSize) { +      MaybeMerge = false; +      break; +    } +  } + +  if (MaybeMerge && Ops.size() * OpSize == ResTy.getSizeInBits()) { +    buildMerge(Res, Ops); +    return; +  } + +  Register ResIn = getMRI()->createGenericVirtualRegister(ResTy); +  buildUndef(ResIn); + +  for (unsigned i = 0; i < Ops.size(); ++i) { +    Register ResOut = i + 1 == Ops.size() +                          ? Res +                          : getMRI()->createGenericVirtualRegister(ResTy); +    buildInsert(ResOut, ResIn, Ops[i], Indices[i]); +    ResIn = ResOut; +  } +} + +MachineInstrBuilder MachineIRBuilder::buildUndef(const DstOp &Res) { +  return buildInstr(TargetOpcode::G_IMPLICIT_DEF, {Res}, {}); +} + +MachineInstrBuilder MachineIRBuilder::buildMerge(const DstOp &Res, +                                                 ArrayRef<Register> Ops) { +  // Unfortunately to convert from ArrayRef<LLT> to ArrayRef<SrcOp>, +  // we need some temporary storage for the DstOp objects. Here we use a +  // sufficiently large SmallVector to not go through the heap. +  SmallVector<SrcOp, 8> TmpVec(Ops.begin(), Ops.end()); +  assert(TmpVec.size() > 1); +  return buildInstr(TargetOpcode::G_MERGE_VALUES, Res, TmpVec); +} + +MachineInstrBuilder MachineIRBuilder::buildUnmerge(ArrayRef<LLT> Res, +                                                   const SrcOp &Op) { +  // Unfortunately to convert from ArrayRef<LLT> to ArrayRef<DstOp>, +  // we need some temporary storage for the DstOp objects. Here we use a +  // sufficiently large SmallVector to not go through the heap. +  SmallVector<DstOp, 8> TmpVec(Res.begin(), Res.end()); +  assert(TmpVec.size() > 1); +  return buildInstr(TargetOpcode::G_UNMERGE_VALUES, TmpVec, Op); +} + +MachineInstrBuilder MachineIRBuilder::buildUnmerge(LLT Res, +                                                   const SrcOp &Op) { +  unsigned NumReg = Op.getLLTTy(*getMRI()).getSizeInBits() / Res.getSizeInBits(); +  SmallVector<Register, 8> TmpVec; +  for (unsigned I = 0; I != NumReg; ++I) +    TmpVec.push_back(getMRI()->createGenericVirtualRegister(Res)); +  return buildUnmerge(TmpVec, Op); +} + +MachineInstrBuilder MachineIRBuilder::buildUnmerge(ArrayRef<Register> Res, +                                                   const SrcOp &Op) { +  // Unfortunately to convert from ArrayRef<Register> to ArrayRef<DstOp>, +  // we need some temporary storage for the DstOp objects. Here we use a +  // sufficiently large SmallVector to not go through the heap. +  SmallVector<DstOp, 8> TmpVec(Res.begin(), Res.end()); +  assert(TmpVec.size() > 1); +  return buildInstr(TargetOpcode::G_UNMERGE_VALUES, TmpVec, Op); +} + +MachineInstrBuilder MachineIRBuilder::buildBuildVector(const DstOp &Res, +                                                       ArrayRef<Register> Ops) { +  // Unfortunately to convert from ArrayRef<Register> to ArrayRef<SrcOp>, +  // we need some temporary storage for the DstOp objects. Here we use a +  // sufficiently large SmallVector to not go through the heap. +  SmallVector<SrcOp, 8> TmpVec(Ops.begin(), Ops.end()); +  return buildInstr(TargetOpcode::G_BUILD_VECTOR, Res, TmpVec); +} + +MachineInstrBuilder MachineIRBuilder::buildSplatVector(const DstOp &Res, +                                                       const SrcOp &Src) { +  SmallVector<SrcOp, 8> TmpVec(Res.getLLTTy(*getMRI()).getNumElements(), Src); +  return buildInstr(TargetOpcode::G_BUILD_VECTOR, Res, TmpVec); +} + +MachineInstrBuilder +MachineIRBuilder::buildBuildVectorTrunc(const DstOp &Res, +                                        ArrayRef<Register> Ops) { +  // Unfortunately to convert from ArrayRef<Register> to ArrayRef<SrcOp>, +  // we need some temporary storage for the DstOp objects. Here we use a +  // sufficiently large SmallVector to not go through the heap. +  SmallVector<SrcOp, 8> TmpVec(Ops.begin(), Ops.end()); +  return buildInstr(TargetOpcode::G_BUILD_VECTOR_TRUNC, Res, TmpVec); +} + +MachineInstrBuilder +MachineIRBuilder::buildConcatVectors(const DstOp &Res, ArrayRef<Register> Ops) { +  // Unfortunately to convert from ArrayRef<Register> to ArrayRef<SrcOp>, +  // we need some temporary storage for the DstOp objects. Here we use a +  // sufficiently large SmallVector to not go through the heap. +  SmallVector<SrcOp, 8> TmpVec(Ops.begin(), Ops.end()); +  return buildInstr(TargetOpcode::G_CONCAT_VECTORS, Res, TmpVec); +} + +MachineInstrBuilder MachineIRBuilder::buildInsert(Register Res, Register Src, +                                                  Register Op, unsigned Index) { +  assert(Index + getMRI()->getType(Op).getSizeInBits() <= +             getMRI()->getType(Res).getSizeInBits() && +         "insertion past the end of a register"); + +  if (getMRI()->getType(Res).getSizeInBits() == +      getMRI()->getType(Op).getSizeInBits()) { +    return buildCast(Res, Op); +  } + +  return buildInstr(TargetOpcode::G_INSERT) +      .addDef(Res) +      .addUse(Src) +      .addUse(Op) +      .addImm(Index); +} + +MachineInstrBuilder MachineIRBuilder::buildIntrinsic(Intrinsic::ID ID, +                                                     ArrayRef<Register> ResultRegs, +                                                     bool HasSideEffects) { +  auto MIB = +      buildInstr(HasSideEffects ? TargetOpcode::G_INTRINSIC_W_SIDE_EFFECTS +                                : TargetOpcode::G_INTRINSIC); +  for (unsigned ResultReg : ResultRegs) +    MIB.addDef(ResultReg); +  MIB.addIntrinsicID(ID); +  return MIB; +} + +MachineInstrBuilder MachineIRBuilder::buildIntrinsic(Intrinsic::ID ID, +                                                     ArrayRef<DstOp> Results, +                                                     bool HasSideEffects) { +  auto MIB = +      buildInstr(HasSideEffects ? TargetOpcode::G_INTRINSIC_W_SIDE_EFFECTS +                                : TargetOpcode::G_INTRINSIC); +  for (DstOp Result : Results) +    Result.addDefToMIB(*getMRI(), MIB); +  MIB.addIntrinsicID(ID); +  return MIB; +} + +MachineInstrBuilder MachineIRBuilder::buildTrunc(const DstOp &Res, +                                                 const SrcOp &Op) { +  return buildInstr(TargetOpcode::G_TRUNC, Res, Op); +} + +MachineInstrBuilder MachineIRBuilder::buildFPTrunc(const DstOp &Res, +                                                   const SrcOp &Op) { +  return buildInstr(TargetOpcode::G_FPTRUNC, Res, Op); +} + +MachineInstrBuilder MachineIRBuilder::buildICmp(CmpInst::Predicate Pred, +                                                const DstOp &Res, +                                                const SrcOp &Op0, +                                                const SrcOp &Op1) { +  return buildInstr(TargetOpcode::G_ICMP, Res, {Pred, Op0, Op1}); +} + +MachineInstrBuilder MachineIRBuilder::buildFCmp(CmpInst::Predicate Pred, +                                                const DstOp &Res, +                                                const SrcOp &Op0, +                                                const SrcOp &Op1, +                                                Optional<unsigned> Flags) { + +  return buildInstr(TargetOpcode::G_FCMP, Res, {Pred, Op0, Op1}, Flags); +} + +MachineInstrBuilder MachineIRBuilder::buildSelect(const DstOp &Res, +                                                  const SrcOp &Tst, +                                                  const SrcOp &Op0, +                                                  const SrcOp &Op1, +                                                  Optional<unsigned> Flags) { + +  return buildInstr(TargetOpcode::G_SELECT, {Res}, {Tst, Op0, Op1}, Flags); +} + +MachineInstrBuilder +MachineIRBuilder::buildInsertVectorElement(const DstOp &Res, const SrcOp &Val, +                                           const SrcOp &Elt, const SrcOp &Idx) { +  return buildInstr(TargetOpcode::G_INSERT_VECTOR_ELT, Res, {Val, Elt, Idx}); +} + +MachineInstrBuilder +MachineIRBuilder::buildExtractVectorElement(const DstOp &Res, const SrcOp &Val, +                                            const SrcOp &Idx) { +  return buildInstr(TargetOpcode::G_EXTRACT_VECTOR_ELT, Res, {Val, Idx}); +} + +MachineInstrBuilder MachineIRBuilder::buildAtomicCmpXchgWithSuccess( +    Register OldValRes, Register SuccessRes, Register Addr, Register CmpVal, +    Register NewVal, MachineMemOperand &MMO) { +#ifndef NDEBUG +  LLT OldValResTy = getMRI()->getType(OldValRes); +  LLT SuccessResTy = getMRI()->getType(SuccessRes); +  LLT AddrTy = getMRI()->getType(Addr); +  LLT CmpValTy = getMRI()->getType(CmpVal); +  LLT NewValTy = getMRI()->getType(NewVal); +  assert(OldValResTy.isScalar() && "invalid operand type"); +  assert(SuccessResTy.isScalar() && "invalid operand type"); +  assert(AddrTy.isPointer() && "invalid operand type"); +  assert(CmpValTy.isValid() && "invalid operand type"); +  assert(NewValTy.isValid() && "invalid operand type"); +  assert(OldValResTy == CmpValTy && "type mismatch"); +  assert(OldValResTy == NewValTy && "type mismatch"); +#endif + +  return buildInstr(TargetOpcode::G_ATOMIC_CMPXCHG_WITH_SUCCESS) +      .addDef(OldValRes) +      .addDef(SuccessRes) +      .addUse(Addr) +      .addUse(CmpVal) +      .addUse(NewVal) +      .addMemOperand(&MMO); +} + +MachineInstrBuilder +MachineIRBuilder::buildAtomicCmpXchg(Register OldValRes, Register Addr, +                                     Register CmpVal, Register NewVal, +                                     MachineMemOperand &MMO) { +#ifndef NDEBUG +  LLT OldValResTy = getMRI()->getType(OldValRes); +  LLT AddrTy = getMRI()->getType(Addr); +  LLT CmpValTy = getMRI()->getType(CmpVal); +  LLT NewValTy = getMRI()->getType(NewVal); +  assert(OldValResTy.isScalar() && "invalid operand type"); +  assert(AddrTy.isPointer() && "invalid operand type"); +  assert(CmpValTy.isValid() && "invalid operand type"); +  assert(NewValTy.isValid() && "invalid operand type"); +  assert(OldValResTy == CmpValTy && "type mismatch"); +  assert(OldValResTy == NewValTy && "type mismatch"); +#endif + +  return buildInstr(TargetOpcode::G_ATOMIC_CMPXCHG) +      .addDef(OldValRes) +      .addUse(Addr) +      .addUse(CmpVal) +      .addUse(NewVal) +      .addMemOperand(&MMO); +} + +MachineInstrBuilder MachineIRBuilder::buildAtomicRMW( +  unsigned Opcode, const DstOp &OldValRes, +  const SrcOp &Addr, const SrcOp &Val, +  MachineMemOperand &MMO) { + +#ifndef NDEBUG +  LLT OldValResTy = OldValRes.getLLTTy(*getMRI()); +  LLT AddrTy = Addr.getLLTTy(*getMRI()); +  LLT ValTy = Val.getLLTTy(*getMRI()); +  assert(OldValResTy.isScalar() && "invalid operand type"); +  assert(AddrTy.isPointer() && "invalid operand type"); +  assert(ValTy.isValid() && "invalid operand type"); +  assert(OldValResTy == ValTy && "type mismatch"); +  assert(MMO.isAtomic() && "not atomic mem operand"); +#endif + +  auto MIB = buildInstr(Opcode); +  OldValRes.addDefToMIB(*getMRI(), MIB); +  Addr.addSrcToMIB(MIB); +  Val.addSrcToMIB(MIB); +  MIB.addMemOperand(&MMO); +  return MIB; +} + +MachineInstrBuilder +MachineIRBuilder::buildAtomicRMWXchg(Register OldValRes, Register Addr, +                                     Register Val, MachineMemOperand &MMO) { +  return buildAtomicRMW(TargetOpcode::G_ATOMICRMW_XCHG, OldValRes, Addr, Val, +                        MMO); +} +MachineInstrBuilder +MachineIRBuilder::buildAtomicRMWAdd(Register OldValRes, Register Addr, +                                    Register Val, MachineMemOperand &MMO) { +  return buildAtomicRMW(TargetOpcode::G_ATOMICRMW_ADD, OldValRes, Addr, Val, +                        MMO); +} +MachineInstrBuilder +MachineIRBuilder::buildAtomicRMWSub(Register OldValRes, Register Addr, +                                    Register Val, MachineMemOperand &MMO) { +  return buildAtomicRMW(TargetOpcode::G_ATOMICRMW_SUB, OldValRes, Addr, Val, +                        MMO); +} +MachineInstrBuilder +MachineIRBuilder::buildAtomicRMWAnd(Register OldValRes, Register Addr, +                                    Register Val, MachineMemOperand &MMO) { +  return buildAtomicRMW(TargetOpcode::G_ATOMICRMW_AND, OldValRes, Addr, Val, +                        MMO); +} +MachineInstrBuilder +MachineIRBuilder::buildAtomicRMWNand(Register OldValRes, Register Addr, +                                     Register Val, MachineMemOperand &MMO) { +  return buildAtomicRMW(TargetOpcode::G_ATOMICRMW_NAND, OldValRes, Addr, Val, +                        MMO); +} +MachineInstrBuilder MachineIRBuilder::buildAtomicRMWOr(Register OldValRes, +                                                       Register Addr, +                                                       Register Val, +                                                       MachineMemOperand &MMO) { +  return buildAtomicRMW(TargetOpcode::G_ATOMICRMW_OR, OldValRes, Addr, Val, +                        MMO); +} +MachineInstrBuilder +MachineIRBuilder::buildAtomicRMWXor(Register OldValRes, Register Addr, +                                    Register Val, MachineMemOperand &MMO) { +  return buildAtomicRMW(TargetOpcode::G_ATOMICRMW_XOR, OldValRes, Addr, Val, +                        MMO); +} +MachineInstrBuilder +MachineIRBuilder::buildAtomicRMWMax(Register OldValRes, Register Addr, +                                    Register Val, MachineMemOperand &MMO) { +  return buildAtomicRMW(TargetOpcode::G_ATOMICRMW_MAX, OldValRes, Addr, Val, +                        MMO); +} +MachineInstrBuilder +MachineIRBuilder::buildAtomicRMWMin(Register OldValRes, Register Addr, +                                    Register Val, MachineMemOperand &MMO) { +  return buildAtomicRMW(TargetOpcode::G_ATOMICRMW_MIN, OldValRes, Addr, Val, +                        MMO); +} +MachineInstrBuilder +MachineIRBuilder::buildAtomicRMWUmax(Register OldValRes, Register Addr, +                                     Register Val, MachineMemOperand &MMO) { +  return buildAtomicRMW(TargetOpcode::G_ATOMICRMW_UMAX, OldValRes, Addr, Val, +                        MMO); +} +MachineInstrBuilder +MachineIRBuilder::buildAtomicRMWUmin(Register OldValRes, Register Addr, +                                     Register Val, MachineMemOperand &MMO) { +  return buildAtomicRMW(TargetOpcode::G_ATOMICRMW_UMIN, OldValRes, Addr, Val, +                        MMO); +} + +MachineInstrBuilder +MachineIRBuilder::buildAtomicRMWFAdd( +  const DstOp &OldValRes, const SrcOp &Addr, const SrcOp &Val, +  MachineMemOperand &MMO) { +  return buildAtomicRMW(TargetOpcode::G_ATOMICRMW_FADD, OldValRes, Addr, Val, +                        MMO); +} + +MachineInstrBuilder +MachineIRBuilder::buildAtomicRMWFSub(const DstOp &OldValRes, const SrcOp &Addr, const SrcOp &Val, +                                     MachineMemOperand &MMO) { +  return buildAtomicRMW(TargetOpcode::G_ATOMICRMW_FSUB, OldValRes, Addr, Val, +                        MMO); +} + +MachineInstrBuilder +MachineIRBuilder::buildFence(unsigned Ordering, unsigned Scope) { +  return buildInstr(TargetOpcode::G_FENCE) +    .addImm(Ordering) +    .addImm(Scope); +} + +MachineInstrBuilder +MachineIRBuilder::buildBlockAddress(Register Res, const BlockAddress *BA) { +#ifndef NDEBUG +  assert(getMRI()->getType(Res).isPointer() && "invalid res type"); +#endif + +  return buildInstr(TargetOpcode::G_BLOCK_ADDR).addDef(Res).addBlockAddress(BA); +} + +void MachineIRBuilder::validateTruncExt(const LLT &DstTy, const LLT &SrcTy, +                                        bool IsExtend) { +#ifndef NDEBUG +  if (DstTy.isVector()) { +    assert(SrcTy.isVector() && "mismatched cast between vector and non-vector"); +    assert(SrcTy.getNumElements() == DstTy.getNumElements() && +           "different number of elements in a trunc/ext"); +  } else +    assert(DstTy.isScalar() && SrcTy.isScalar() && "invalid extend/trunc"); + +  if (IsExtend) +    assert(DstTy.getSizeInBits() > SrcTy.getSizeInBits() && +           "invalid narrowing extend"); +  else +    assert(DstTy.getSizeInBits() < SrcTy.getSizeInBits() && +           "invalid widening trunc"); +#endif +} + +void MachineIRBuilder::validateSelectOp(const LLT &ResTy, const LLT &TstTy, +                                        const LLT &Op0Ty, const LLT &Op1Ty) { +#ifndef NDEBUG +  assert((ResTy.isScalar() || ResTy.isVector() || ResTy.isPointer()) && +         "invalid operand type"); +  assert((ResTy == Op0Ty && ResTy == Op1Ty) && "type mismatch"); +  if (ResTy.isScalar() || ResTy.isPointer()) +    assert(TstTy.isScalar() && "type mismatch"); +  else +    assert((TstTy.isScalar() || +            (TstTy.isVector() && +             TstTy.getNumElements() == Op0Ty.getNumElements())) && +           "type mismatch"); +#endif +} + +MachineInstrBuilder MachineIRBuilder::buildInstr(unsigned Opc, +                                                 ArrayRef<DstOp> DstOps, +                                                 ArrayRef<SrcOp> SrcOps, +                                                 Optional<unsigned> Flags) { +  switch (Opc) { +  default: +    break; +  case TargetOpcode::G_SELECT: { +    assert(DstOps.size() == 1 && "Invalid select"); +    assert(SrcOps.size() == 3 && "Invalid select"); +    validateSelectOp( +        DstOps[0].getLLTTy(*getMRI()), SrcOps[0].getLLTTy(*getMRI()), +        SrcOps[1].getLLTTy(*getMRI()), SrcOps[2].getLLTTy(*getMRI())); +    break; +  } +  case TargetOpcode::G_ADD: +  case TargetOpcode::G_AND: +  case TargetOpcode::G_MUL: +  case TargetOpcode::G_OR: +  case TargetOpcode::G_SUB: +  case TargetOpcode::G_XOR: +  case TargetOpcode::G_UDIV: +  case TargetOpcode::G_SDIV: +  case TargetOpcode::G_UREM: +  case TargetOpcode::G_SREM: +  case TargetOpcode::G_SMIN: +  case TargetOpcode::G_SMAX: +  case TargetOpcode::G_UMIN: +  case TargetOpcode::G_UMAX: { +    // All these are binary ops. +    assert(DstOps.size() == 1 && "Invalid Dst"); +    assert(SrcOps.size() == 2 && "Invalid Srcs"); +    validateBinaryOp(DstOps[0].getLLTTy(*getMRI()), +                     SrcOps[0].getLLTTy(*getMRI()), +                     SrcOps[1].getLLTTy(*getMRI())); +    break; +  } +  case TargetOpcode::G_SHL: +  case TargetOpcode::G_ASHR: +  case TargetOpcode::G_LSHR: { +    assert(DstOps.size() == 1 && "Invalid Dst"); +    assert(SrcOps.size() == 2 && "Invalid Srcs"); +    validateShiftOp(DstOps[0].getLLTTy(*getMRI()), +                    SrcOps[0].getLLTTy(*getMRI()), +                    SrcOps[1].getLLTTy(*getMRI())); +    break; +  } +  case TargetOpcode::G_SEXT: +  case TargetOpcode::G_ZEXT: +  case TargetOpcode::G_ANYEXT: +    assert(DstOps.size() == 1 && "Invalid Dst"); +    assert(SrcOps.size() == 1 && "Invalid Srcs"); +    validateTruncExt(DstOps[0].getLLTTy(*getMRI()), +                     SrcOps[0].getLLTTy(*getMRI()), true); +    break; +  case TargetOpcode::G_TRUNC: +  case TargetOpcode::G_FPTRUNC: { +    assert(DstOps.size() == 1 && "Invalid Dst"); +    assert(SrcOps.size() == 1 && "Invalid Srcs"); +    validateTruncExt(DstOps[0].getLLTTy(*getMRI()), +                     SrcOps[0].getLLTTy(*getMRI()), false); +    break; +  } +  case TargetOpcode::COPY: +    assert(DstOps.size() == 1 && "Invalid Dst"); +    // If the caller wants to add a subreg source it has to be done separately +    // so we may not have any SrcOps at this point yet. +    break; +  case TargetOpcode::G_FCMP: +  case TargetOpcode::G_ICMP: { +    assert(DstOps.size() == 1 && "Invalid Dst Operands"); +    assert(SrcOps.size() == 3 && "Invalid Src Operands"); +    // For F/ICMP, the first src operand is the predicate, followed by +    // the two comparands. +    assert(SrcOps[0].getSrcOpKind() == SrcOp::SrcType::Ty_Predicate && +           "Expecting predicate"); +    assert([&]() -> bool { +      CmpInst::Predicate Pred = SrcOps[0].getPredicate(); +      return Opc == TargetOpcode::G_ICMP ? CmpInst::isIntPredicate(Pred) +                                         : CmpInst::isFPPredicate(Pred); +    }() && "Invalid predicate"); +    assert(SrcOps[1].getLLTTy(*getMRI()) == SrcOps[2].getLLTTy(*getMRI()) && +           "Type mismatch"); +    assert([&]() -> bool { +      LLT Op0Ty = SrcOps[1].getLLTTy(*getMRI()); +      LLT DstTy = DstOps[0].getLLTTy(*getMRI()); +      if (Op0Ty.isScalar() || Op0Ty.isPointer()) +        return DstTy.isScalar(); +      else +        return DstTy.isVector() && +               DstTy.getNumElements() == Op0Ty.getNumElements(); +    }() && "Type Mismatch"); +    break; +  } +  case TargetOpcode::G_UNMERGE_VALUES: { +    assert(!DstOps.empty() && "Invalid trivial sequence"); +    assert(SrcOps.size() == 1 && "Invalid src for Unmerge"); +    assert(std::all_of(DstOps.begin(), DstOps.end(), +                       [&, this](const DstOp &Op) { +                         return Op.getLLTTy(*getMRI()) == +                                DstOps[0].getLLTTy(*getMRI()); +                       }) && +           "type mismatch in output list"); +    assert(DstOps.size() * DstOps[0].getLLTTy(*getMRI()).getSizeInBits() == +               SrcOps[0].getLLTTy(*getMRI()).getSizeInBits() && +           "input operands do not cover output register"); +    break; +  } +  case TargetOpcode::G_MERGE_VALUES: { +    assert(!SrcOps.empty() && "invalid trivial sequence"); +    assert(DstOps.size() == 1 && "Invalid Dst"); +    assert(std::all_of(SrcOps.begin(), SrcOps.end(), +                       [&, this](const SrcOp &Op) { +                         return Op.getLLTTy(*getMRI()) == +                                SrcOps[0].getLLTTy(*getMRI()); +                       }) && +           "type mismatch in input list"); +    assert(SrcOps.size() * SrcOps[0].getLLTTy(*getMRI()).getSizeInBits() == +               DstOps[0].getLLTTy(*getMRI()).getSizeInBits() && +           "input operands do not cover output register"); +    if (SrcOps.size() == 1) +      return buildCast(DstOps[0], SrcOps[0]); +    if (DstOps[0].getLLTTy(*getMRI()).isVector()) { +      if (SrcOps[0].getLLTTy(*getMRI()).isVector()) +        return buildInstr(TargetOpcode::G_CONCAT_VECTORS, DstOps, SrcOps); +      return buildInstr(TargetOpcode::G_BUILD_VECTOR, DstOps, SrcOps); +    } +    break; +  } +  case TargetOpcode::G_EXTRACT_VECTOR_ELT: { +    assert(DstOps.size() == 1 && "Invalid Dst size"); +    assert(SrcOps.size() == 2 && "Invalid Src size"); +    assert(SrcOps[0].getLLTTy(*getMRI()).isVector() && "Invalid operand type"); +    assert((DstOps[0].getLLTTy(*getMRI()).isScalar() || +            DstOps[0].getLLTTy(*getMRI()).isPointer()) && +           "Invalid operand type"); +    assert(SrcOps[1].getLLTTy(*getMRI()).isScalar() && "Invalid operand type"); +    assert(SrcOps[0].getLLTTy(*getMRI()).getElementType() == +               DstOps[0].getLLTTy(*getMRI()) && +           "Type mismatch"); +    break; +  } +  case TargetOpcode::G_INSERT_VECTOR_ELT: { +    assert(DstOps.size() == 1 && "Invalid dst size"); +    assert(SrcOps.size() == 3 && "Invalid src size"); +    assert(DstOps[0].getLLTTy(*getMRI()).isVector() && +           SrcOps[0].getLLTTy(*getMRI()).isVector() && "Invalid operand type"); +    assert(DstOps[0].getLLTTy(*getMRI()).getElementType() == +               SrcOps[1].getLLTTy(*getMRI()) && +           "Type mismatch"); +    assert(SrcOps[2].getLLTTy(*getMRI()).isScalar() && "Invalid index"); +    assert(DstOps[0].getLLTTy(*getMRI()).getNumElements() == +               SrcOps[0].getLLTTy(*getMRI()).getNumElements() && +           "Type mismatch"); +    break; +  } +  case TargetOpcode::G_BUILD_VECTOR: { +    assert((!SrcOps.empty() || SrcOps.size() < 2) && +           "Must have at least 2 operands"); +    assert(DstOps.size() == 1 && "Invalid DstOps"); +    assert(DstOps[0].getLLTTy(*getMRI()).isVector() && +           "Res type must be a vector"); +    assert(std::all_of(SrcOps.begin(), SrcOps.end(), +                       [&, this](const SrcOp &Op) { +                         return Op.getLLTTy(*getMRI()) == +                                SrcOps[0].getLLTTy(*getMRI()); +                       }) && +           "type mismatch in input list"); +    assert(SrcOps.size() * SrcOps[0].getLLTTy(*getMRI()).getSizeInBits() == +               DstOps[0].getLLTTy(*getMRI()).getSizeInBits() && +           "input scalars do not exactly cover the output vector register"); +    break; +  } +  case TargetOpcode::G_BUILD_VECTOR_TRUNC: { +    assert((!SrcOps.empty() || SrcOps.size() < 2) && +           "Must have at least 2 operands"); +    assert(DstOps.size() == 1 && "Invalid DstOps"); +    assert(DstOps[0].getLLTTy(*getMRI()).isVector() && +           "Res type must be a vector"); +    assert(std::all_of(SrcOps.begin(), SrcOps.end(), +                       [&, this](const SrcOp &Op) { +                         return Op.getLLTTy(*getMRI()) == +                                SrcOps[0].getLLTTy(*getMRI()); +                       }) && +           "type mismatch in input list"); +    if (SrcOps[0].getLLTTy(*getMRI()).getSizeInBits() == +        DstOps[0].getLLTTy(*getMRI()).getElementType().getSizeInBits()) +      return buildInstr(TargetOpcode::G_BUILD_VECTOR, DstOps, SrcOps); +    break; +  } +  case TargetOpcode::G_CONCAT_VECTORS: { +    assert(DstOps.size() == 1 && "Invalid DstOps"); +    assert((!SrcOps.empty() || SrcOps.size() < 2) && +           "Must have at least 2 operands"); +    assert(std::all_of(SrcOps.begin(), SrcOps.end(), +                       [&, this](const SrcOp &Op) { +                         return (Op.getLLTTy(*getMRI()).isVector() && +                                 Op.getLLTTy(*getMRI()) == +                                     SrcOps[0].getLLTTy(*getMRI())); +                       }) && +           "type mismatch in input list"); +    assert(SrcOps.size() * SrcOps[0].getLLTTy(*getMRI()).getSizeInBits() == +               DstOps[0].getLLTTy(*getMRI()).getSizeInBits() && +           "input vectors do not exactly cover the output vector register"); +    break; +  } +  case TargetOpcode::G_UADDE: { +    assert(DstOps.size() == 2 && "Invalid no of dst operands"); +    assert(SrcOps.size() == 3 && "Invalid no of src operands"); +    assert(DstOps[0].getLLTTy(*getMRI()).isScalar() && "Invalid operand"); +    assert((DstOps[0].getLLTTy(*getMRI()) == SrcOps[0].getLLTTy(*getMRI())) && +           (DstOps[0].getLLTTy(*getMRI()) == SrcOps[1].getLLTTy(*getMRI())) && +           "Invalid operand"); +    assert(DstOps[1].getLLTTy(*getMRI()).isScalar() && "Invalid operand"); +    assert(DstOps[1].getLLTTy(*getMRI()) == SrcOps[2].getLLTTy(*getMRI()) && +           "type mismatch"); +    break; +  } +  } + +  auto MIB = buildInstr(Opc); +  for (const DstOp &Op : DstOps) +    Op.addDefToMIB(*getMRI(), MIB); +  for (const SrcOp &Op : SrcOps) +    Op.addSrcToMIB(MIB); +  if (Flags) +    MIB->setFlags(*Flags); +  return MIB; +} | 
