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//===-- llvm/CodeGen/GlobalISel/MachineIRBuilder.cpp - MIBuilder--*- C++ -*-==//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
/// \file
/// This file implements the MachineIRBuidler class.
//===----------------------------------------------------------------------===//
#include "llvm/CodeGen/GlobalISel/MachineIRBuilder.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/IR/DebugInfo.h"
#include "llvm/Target/TargetInstrInfo.h"
#include "llvm/Target/TargetOpcodes.h"
#include "llvm/Target/TargetSubtargetInfo.h"
using namespace llvm;
void MachineIRBuilder::setMF(MachineFunction &MF) {
this->MF = &MF;
this->MBB = nullptr;
this->MRI = &MF.getRegInfo();
this->TII = MF.getSubtarget().getInstrInfo();
this->DL = DebugLoc();
this->II = MachineBasicBlock::iterator();
this->InsertedInstr = nullptr;
}
void MachineIRBuilder::setMBB(MachineBasicBlock &MBB) {
this->MBB = &MBB;
this->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());
this->II = MI.getIterator();
}
void MachineIRBuilder::setInsertPt(MachineBasicBlock &MBB,
MachineBasicBlock::iterator II) {
assert(MBB.getParent() == &getMF() &&
"Basic block is in a different function");
this->MBB = &MBB;
this->II = II;
}
void MachineIRBuilder::recordInsertions(
std::function<void(MachineInstr *)> Inserted) {
InsertedInstr = std::move(Inserted);
}
void MachineIRBuilder::stopRecordingInsertions() {
InsertedInstr = nullptr;
}
//------------------------------------------------------------------------------
// Build instruction variants.
//------------------------------------------------------------------------------
MachineInstrBuilder MachineIRBuilder::buildInstr(unsigned Opcode) {
return insertInstr(buildInstrNoInsert(Opcode));
}
MachineInstrBuilder MachineIRBuilder::buildInstrNoInsert(unsigned Opcode) {
MachineInstrBuilder MIB = BuildMI(getMF(), DL, getTII().get(Opcode));
return MIB;
}
MachineInstrBuilder MachineIRBuilder::insertInstr(MachineInstrBuilder MIB) {
getMBB().insert(getInsertPt(), MIB);
if (InsertedInstr)
InsertedInstr(MIB);
return MIB;
}
MachineInstrBuilder
MachineIRBuilder::buildDirectDbgValue(unsigned 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(DL) &&
"Expected inlined-at fields to agree");
return insertInstr(BuildMI(getMF(), DL, getTII().get(TargetOpcode::DBG_VALUE),
/*IsIndirect*/ false, Reg, Variable, Expr));
}
MachineInstrBuilder
MachineIRBuilder::buildIndirectDbgValue(unsigned 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(DL) &&
"Expected inlined-at fields to agree");
return insertInstr(BuildMI(getMF(), DL, getTII().get(TargetOpcode::DBG_VALUE),
/*IsIndirect*/ true, Reg, Variable, Expr));
}
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(DL) &&
"Expected inlined-at fields to agree");
return buildInstr(TargetOpcode::DBG_VALUE)
.addFrameIndex(FI)
.addImm(0)
.addMetadata(Variable)
.addMetadata(Expr);
}
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(DL) &&
"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.addImm(0).addMetadata(Variable).addMetadata(Expr);
}
MachineInstrBuilder MachineIRBuilder::buildFrameIndex(unsigned Res, int Idx) {
assert(MRI->getType(Res).isPointer() && "invalid operand type");
return buildInstr(TargetOpcode::G_FRAME_INDEX)
.addDef(Res)
.addFrameIndex(Idx);
}
MachineInstrBuilder MachineIRBuilder::buildGlobalValue(unsigned Res,
const GlobalValue *GV) {
assert(MRI->getType(Res).isPointer() && "invalid operand type");
assert(MRI->getType(Res).getAddressSpace() ==
GV->getType()->getAddressSpace() &&
"address space mismatch");
return buildInstr(TargetOpcode::G_GLOBAL_VALUE)
.addDef(Res)
.addGlobalAddress(GV);
}
MachineInstrBuilder MachineIRBuilder::buildBinaryOp(unsigned Opcode, unsigned Res, unsigned Op0,
unsigned Op1) {
assert((MRI->getType(Res).isScalar() || MRI->getType(Res).isVector()) &&
"invalid operand type");
assert(MRI->getType(Res) == MRI->getType(Op0) &&
MRI->getType(Res) == MRI->getType(Op1) && "type mismatch");
return buildInstr(Opcode)
.addDef(Res)
.addUse(Op0)
.addUse(Op1);
}
MachineInstrBuilder MachineIRBuilder::buildAdd(unsigned Res, unsigned Op0,
unsigned Op1) {
return buildBinaryOp(TargetOpcode::G_ADD, Res, Op0, Op1);
}
MachineInstrBuilder MachineIRBuilder::buildGEP(unsigned Res, unsigned Op0,
unsigned Op1) {
assert(MRI->getType(Res).isPointer() &&
MRI->getType(Res) == MRI->getType(Op0) && "type mismatch");
assert(MRI->getType(Op1).isScalar() && "invalid offset type");
return buildInstr(TargetOpcode::G_GEP)
.addDef(Res)
.addUse(Op0)
.addUse(Op1);
}
Optional<MachineInstrBuilder>
MachineIRBuilder::materializeGEP(unsigned &Res, unsigned 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 = MRI->createGenericVirtualRegister(MRI->getType(Op0));
unsigned TmpReg = MRI->createGenericVirtualRegister(ValueTy);
buildConstant(TmpReg, Value);
return buildGEP(Res, Op0, TmpReg);
}
MachineInstrBuilder MachineIRBuilder::buildPtrMask(unsigned Res, unsigned Op0,
uint32_t NumBits) {
assert(MRI->getType(Res).isPointer() &&
MRI->getType(Res) == MRI->getType(Op0) && "type mismatch");
return buildInstr(TargetOpcode::G_PTR_MASK)
.addDef(Res)
.addUse(Op0)
.addImm(NumBits);
}
MachineInstrBuilder MachineIRBuilder::buildSub(unsigned Res, unsigned Op0,
unsigned Op1) {
return buildBinaryOp(TargetOpcode::G_SUB, Res, Op0, Op1);
}
MachineInstrBuilder MachineIRBuilder::buildMul(unsigned Res, unsigned Op0,
unsigned Op1) {
return buildBinaryOp(TargetOpcode::G_MUL, Res, Op0, Op1);
}
MachineInstrBuilder MachineIRBuilder::buildAnd(unsigned Res, unsigned Op0,
unsigned Op1) {
return buildBinaryOp(TargetOpcode::G_AND, Res, Op0, Op1);
}
MachineInstrBuilder MachineIRBuilder::buildOr(unsigned Res, unsigned Op0,
unsigned Op1) {
return buildBinaryOp(TargetOpcode::G_OR, Res, Op0, Op1);
}
MachineInstrBuilder MachineIRBuilder::buildBr(MachineBasicBlock &Dest) {
return buildInstr(TargetOpcode::G_BR).addMBB(&Dest);
}
MachineInstrBuilder MachineIRBuilder::buildBrIndirect(unsigned Tgt) {
assert(MRI->getType(Tgt).isPointer() && "invalid branch destination");
return buildInstr(TargetOpcode::G_BRINDIRECT).addUse(Tgt);
}
MachineInstrBuilder MachineIRBuilder::buildCopy(unsigned Res, unsigned Op) {
assert(MRI->getType(Res) == LLT() || MRI->getType(Op) == LLT() ||
MRI->getType(Res) == MRI->getType(Op));
return buildInstr(TargetOpcode::COPY).addDef(Res).addUse(Op);
}
MachineInstrBuilder MachineIRBuilder::buildConstant(unsigned Res,
const ConstantInt &Val) {
LLT Ty = MRI->getType(Res);
assert((Ty.isScalar() || Ty.isPointer()) && "invalid operand type");
const ConstantInt *NewVal = &Val;
if (Ty.getSizeInBits() != Val.getBitWidth())
NewVal = ConstantInt::get(MF->getFunction()->getContext(),
Val.getValue().sextOrTrunc(Ty.getSizeInBits()));
return buildInstr(TargetOpcode::G_CONSTANT).addDef(Res).addCImm(NewVal);
}
MachineInstrBuilder MachineIRBuilder::buildConstant(unsigned Res,
int64_t Val) {
auto IntN = IntegerType::get(MF->getFunction()->getContext(),
MRI->getType(Res).getSizeInBits());
ConstantInt *CI = ConstantInt::get(IntN, Val, true);
return buildConstant(Res, *CI);
}
MachineInstrBuilder MachineIRBuilder::buildFConstant(unsigned Res,
const ConstantFP &Val) {
assert(MRI->getType(Res).isScalar() && "invalid operand type");
return buildInstr(TargetOpcode::G_FCONSTANT).addDef(Res).addFPImm(&Val);
}
MachineInstrBuilder MachineIRBuilder::buildBrCond(unsigned Tst,
MachineBasicBlock &Dest) {
assert(MRI->getType(Tst).isScalar() && "invalid operand type");
return buildInstr(TargetOpcode::G_BRCOND).addUse(Tst).addMBB(&Dest);
}
MachineInstrBuilder MachineIRBuilder::buildLoad(unsigned Res, unsigned Addr,
MachineMemOperand &MMO) {
assert(MRI->getType(Res).isValid() && "invalid operand type");
assert(MRI->getType(Addr).isPointer() && "invalid operand type");
return buildInstr(TargetOpcode::G_LOAD)
.addDef(Res)
.addUse(Addr)
.addMemOperand(&MMO);
}
MachineInstrBuilder MachineIRBuilder::buildStore(unsigned Val, unsigned Addr,
MachineMemOperand &MMO) {
assert(MRI->getType(Val).isValid() && "invalid operand type");
assert(MRI->getType(Addr).isPointer() && "invalid operand type");
return buildInstr(TargetOpcode::G_STORE)
.addUse(Val)
.addUse(Addr)
.addMemOperand(&MMO);
}
MachineInstrBuilder MachineIRBuilder::buildUAdde(unsigned Res,
unsigned CarryOut,
unsigned Op0, unsigned Op1,
unsigned CarryIn) {
assert(MRI->getType(Res).isScalar() && "invalid operand type");
assert(MRI->getType(Res) == MRI->getType(Op0) &&
MRI->getType(Res) == MRI->getType(Op1) && "type mismatch");
assert(MRI->getType(CarryOut).isScalar() && "invalid operand type");
assert(MRI->getType(CarryOut) == MRI->getType(CarryIn) && "type mismatch");
return buildInstr(TargetOpcode::G_UADDE)
.addDef(Res)
.addDef(CarryOut)
.addUse(Op0)
.addUse(Op1)
.addUse(CarryIn);
}
MachineInstrBuilder MachineIRBuilder::buildAnyExt(unsigned Res, unsigned Op) {
validateTruncExt(Res, Op, true);
return buildInstr(TargetOpcode::G_ANYEXT).addDef(Res).addUse(Op);
}
MachineInstrBuilder MachineIRBuilder::buildSExt(unsigned Res, unsigned Op) {
validateTruncExt(Res, Op, true);
return buildInstr(TargetOpcode::G_SEXT).addDef(Res).addUse(Op);
}
MachineInstrBuilder MachineIRBuilder::buildZExt(unsigned Res, unsigned Op) {
validateTruncExt(Res, Op, true);
return buildInstr(TargetOpcode::G_ZEXT).addDef(Res).addUse(Op);
}
MachineInstrBuilder
MachineIRBuilder::buildExtOrTrunc(unsigned ExtOpc, unsigned Res, unsigned Op) {
assert((TargetOpcode::G_ANYEXT == ExtOpc || TargetOpcode::G_ZEXT == ExtOpc ||
TargetOpcode::G_SEXT == ExtOpc) &&
"Expecting Extending Opc");
assert(MRI->getType(Res).isScalar() || MRI->getType(Res).isVector());
assert(MRI->getType(Res).isScalar() == MRI->getType(Op).isScalar());
unsigned Opcode = TargetOpcode::COPY;
if (MRI->getType(Res).getSizeInBits() > MRI->getType(Op).getSizeInBits())
Opcode = ExtOpc;
else if (MRI->getType(Res).getSizeInBits() < MRI->getType(Op).getSizeInBits())
Opcode = TargetOpcode::G_TRUNC;
else
assert(MRI->getType(Res) == MRI->getType(Op));
return buildInstr(Opcode).addDef(Res).addUse(Op);
}
MachineInstrBuilder MachineIRBuilder::buildSExtOrTrunc(unsigned Res,
unsigned Op) {
return buildExtOrTrunc(TargetOpcode::G_SEXT, Res, Op);
}
MachineInstrBuilder MachineIRBuilder::buildZExtOrTrunc(unsigned Res,
unsigned Op) {
return buildExtOrTrunc(TargetOpcode::G_ZEXT, Res, Op);
}
MachineInstrBuilder MachineIRBuilder::buildAnyExtOrTrunc(unsigned Res,
unsigned Op) {
return buildExtOrTrunc(TargetOpcode::G_ANYEXT, Res, Op);
}
MachineInstrBuilder MachineIRBuilder::buildCast(unsigned Dst, unsigned Src) {
LLT SrcTy = MRI->getType(Src);
LLT DstTy = MRI->getType(Dst);
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).addDef(Dst).addUse(Src);
}
MachineInstrBuilder MachineIRBuilder::buildExtract(unsigned Res, unsigned Src,
uint64_t Index) {
#ifndef NDEBUG
assert(MRI->getType(Src).isValid() && "invalid operand type");
assert(MRI->getType(Res).isValid() && "invalid operand type");
assert(Index + MRI->getType(Res).getSizeInBits() <=
MRI->getType(Src).getSizeInBits() &&
"extracting off end of register");
#endif
if (MRI->getType(Res).getSizeInBits() == MRI->getType(Src).getSizeInBits()) {
assert(Index == 0 && "insertion past the end of a register");
return buildCast(Res, Src);
}
return buildInstr(TargetOpcode::G_EXTRACT)
.addDef(Res)
.addUse(Src)
.addImm(Index);
}
void MachineIRBuilder::buildSequence(unsigned Res, ArrayRef<unsigned> 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(MRI->getType(Res).isValid() && "invalid operand type");
for (auto Op : Ops)
assert(MRI->getType(Op).isValid() && "invalid operand type");
#endif
LLT ResTy = MRI->getType(Res);
LLT OpTy = MRI->getType(Ops[0]);
unsigned OpSize = OpTy.getSizeInBits();
bool MaybeMerge = true;
for (unsigned i = 0; i < Ops.size(); ++i) {
if (MRI->getType(Ops[i]) != OpTy || Indices[i] != i * OpSize) {
MaybeMerge = false;
break;
}
}
if (MaybeMerge && Ops.size() * OpSize == ResTy.getSizeInBits()) {
buildMerge(Res, Ops);
return;
}
unsigned ResIn = MRI->createGenericVirtualRegister(ResTy);
buildUndef(ResIn);
for (unsigned i = 0; i < Ops.size(); ++i) {
unsigned ResOut =
i + 1 == Ops.size() ? Res : MRI->createGenericVirtualRegister(ResTy);
buildInsert(ResOut, ResIn, Ops[i], Indices[i]);
ResIn = ResOut;
}
}
MachineInstrBuilder MachineIRBuilder::buildUndef(unsigned Res) {
return buildInstr(TargetOpcode::G_IMPLICIT_DEF).addDef(Res);
}
MachineInstrBuilder MachineIRBuilder::buildMerge(unsigned Res,
ArrayRef<unsigned> Ops) {
#ifndef NDEBUG
assert(!Ops.empty() && "invalid trivial sequence");
LLT Ty = MRI->getType(Ops[0]);
for (auto Reg : Ops)
assert(MRI->getType(Reg) == Ty && "type mismatch in input list");
assert(Ops.size() * MRI->getType(Ops[0]).getSizeInBits() ==
MRI->getType(Res).getSizeInBits() &&
"input operands do not cover output register");
#endif
if (Ops.size() == 1)
return buildCast(Res, Ops[0]);
MachineInstrBuilder MIB = buildInstr(TargetOpcode::G_MERGE_VALUES);
MIB.addDef(Res);
for (unsigned i = 0; i < Ops.size(); ++i)
MIB.addUse(Ops[i]);
return MIB;
}
MachineInstrBuilder MachineIRBuilder::buildUnmerge(ArrayRef<unsigned> Res,
unsigned Op) {
#ifndef NDEBUG
assert(!Res.empty() && "invalid trivial sequence");
LLT Ty = MRI->getType(Res[0]);
for (auto Reg : Res)
assert(MRI->getType(Reg) == Ty && "type mismatch in input list");
assert(Res.size() * MRI->getType(Res[0]).getSizeInBits() ==
MRI->getType(Op).getSizeInBits() &&
"input operands do not cover output register");
#endif
MachineInstrBuilder MIB = buildInstr(TargetOpcode::G_UNMERGE_VALUES);
for (unsigned i = 0; i < Res.size(); ++i)
MIB.addDef(Res[i]);
MIB.addUse(Op);
return MIB;
}
MachineInstrBuilder MachineIRBuilder::buildInsert(unsigned Res, unsigned Src,
unsigned Op, unsigned Index) {
assert(Index + MRI->getType(Op).getSizeInBits() <=
MRI->getType(Res).getSizeInBits() &&
"insertion past the end of a register");
if (MRI->getType(Res).getSizeInBits() == MRI->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,
unsigned Res,
bool HasSideEffects) {
auto MIB =
buildInstr(HasSideEffects ? TargetOpcode::G_INTRINSIC_W_SIDE_EFFECTS
: TargetOpcode::G_INTRINSIC);
if (Res)
MIB.addDef(Res);
MIB.addIntrinsicID(ID);
return MIB;
}
MachineInstrBuilder MachineIRBuilder::buildTrunc(unsigned Res, unsigned Op) {
validateTruncExt(Res, Op, false);
return buildInstr(TargetOpcode::G_TRUNC).addDef(Res).addUse(Op);
}
MachineInstrBuilder MachineIRBuilder::buildFPTrunc(unsigned Res, unsigned Op) {
validateTruncExt(Res, Op, false);
return buildInstr(TargetOpcode::G_FPTRUNC).addDef(Res).addUse(Op);
}
MachineInstrBuilder MachineIRBuilder::buildICmp(CmpInst::Predicate Pred,
unsigned Res, unsigned Op0,
unsigned Op1) {
#ifndef NDEBUG
assert(MRI->getType(Op0) == MRI->getType(Op0) && "type mismatch");
assert(CmpInst::isIntPredicate(Pred) && "invalid predicate");
if (MRI->getType(Op0).isScalar() || MRI->getType(Op0).isPointer())
assert(MRI->getType(Res).isScalar() && "type mismatch");
else
assert(MRI->getType(Res).isVector() &&
MRI->getType(Res).getNumElements() ==
MRI->getType(Op0).getNumElements() &&
"type mismatch");
#endif
return buildInstr(TargetOpcode::G_ICMP)
.addDef(Res)
.addPredicate(Pred)
.addUse(Op0)
.addUse(Op1);
}
MachineInstrBuilder MachineIRBuilder::buildFCmp(CmpInst::Predicate Pred,
unsigned Res, unsigned Op0,
unsigned Op1) {
#ifndef NDEBUG
assert((MRI->getType(Op0).isScalar() || MRI->getType(Op0).isVector()) &&
"invalid operand type");
assert(MRI->getType(Op0) == MRI->getType(Op1) && "type mismatch");
assert(CmpInst::isFPPredicate(Pred) && "invalid predicate");
if (MRI->getType(Op0).isScalar())
assert(MRI->getType(Res).isScalar() && "type mismatch");
else
assert(MRI->getType(Res).isVector() &&
MRI->getType(Res).getNumElements() ==
MRI->getType(Op0).getNumElements() &&
"type mismatch");
#endif
return buildInstr(TargetOpcode::G_FCMP)
.addDef(Res)
.addPredicate(Pred)
.addUse(Op0)
.addUse(Op1);
}
MachineInstrBuilder MachineIRBuilder::buildSelect(unsigned Res, unsigned Tst,
unsigned Op0, unsigned Op1) {
#ifndef NDEBUG
LLT ResTy = MRI->getType(Res);
assert((ResTy.isScalar() || ResTy.isVector() || ResTy.isPointer()) &&
"invalid operand type");
assert(ResTy == MRI->getType(Op0) && ResTy == MRI->getType(Op1) &&
"type mismatch");
if (ResTy.isScalar() || ResTy.isPointer())
assert(MRI->getType(Tst).isScalar() && "type mismatch");
else
assert((MRI->getType(Tst).isScalar() ||
(MRI->getType(Tst).isVector() &&
MRI->getType(Tst).getNumElements() ==
MRI->getType(Op0).getNumElements())) &&
"type mismatch");
#endif
return buildInstr(TargetOpcode::G_SELECT)
.addDef(Res)
.addUse(Tst)
.addUse(Op0)
.addUse(Op1);
}
MachineInstrBuilder MachineIRBuilder::buildInsertVectorElement(unsigned Res,
unsigned Val,
unsigned Elt,
unsigned Idx) {
#ifndef NDEBUG
LLT ResTy = MRI->getType(Res);
LLT ValTy = MRI->getType(Val);
LLT EltTy = MRI->getType(Elt);
LLT IdxTy = MRI->getType(Idx);
assert(ResTy.isVector() && ValTy.isVector() && "invalid operand type");
assert(IdxTy.isScalar() && "invalid operand type");
assert(ResTy.getNumElements() == ValTy.getNumElements() && "type mismatch");
assert(ResTy.getElementType() == EltTy && "type mismatch");
#endif
return buildInstr(TargetOpcode::G_INSERT_VECTOR_ELT)
.addDef(Res)
.addUse(Val)
.addUse(Elt)
.addUse(Idx);
}
MachineInstrBuilder MachineIRBuilder::buildExtractVectorElement(unsigned Res,
unsigned Val,
unsigned Idx) {
#ifndef NDEBUG
LLT ResTy = MRI->getType(Res);
LLT ValTy = MRI->getType(Val);
LLT IdxTy = MRI->getType(Idx);
assert(ValTy.isVector() && "invalid operand type");
assert((ResTy.isScalar() || ResTy.isPointer()) && "invalid operand type");
assert(IdxTy.isScalar() && "invalid operand type");
assert(ValTy.getElementType() == ResTy && "type mismatch");
#endif
return buildInstr(TargetOpcode::G_EXTRACT_VECTOR_ELT)
.addDef(Res)
.addUse(Val)
.addUse(Idx);
}
void MachineIRBuilder::validateTruncExt(unsigned Dst, unsigned Src,
bool IsExtend) {
#ifndef NDEBUG
LLT SrcTy = MRI->getType(Src);
LLT DstTy = MRI->getType(Dst);
if (DstTy.isVector()) {
assert(SrcTy.isVector() && "mismatched cast between vecot 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
}