/// Builder - This is an IRBuilder that automatically inserts new
/// instructions into the worklist when they are created.
- IRBuilder<true, ConstantFolder, InstCombineIRInserter> *Builder;
+ typedef IRBuilder<true, ConstantFolder, InstCombineIRInserter> BuilderTy;
+ BuilderTy *Builder;
static char ID; // Pass identification, replacement for typeid
InstCombiner() : FunctionPass(&ID), TD(0), Builder(0) {}
// Turn (Y + (X >> C)) << C -> (X + (Y << C)) & (~0 << C)
if (isLeftShift && Op0BO->getOperand(1)->hasOneUse() &&
match(Op0BO->getOperand(1), m_Shr(m_Value(V1),
- m_Specific(Op1)))){
- Instruction *YS = BinaryOperator::CreateShl(
- Op0BO->getOperand(0), Op1,
- Op0BO->getName());
- InsertNewInstBefore(YS, I); // (Y << C)
- Instruction *X =
- BinaryOperator::Create(Op0BO->getOpcode(), YS, V1,
- Op0BO->getOperand(1)->getName());
- InsertNewInstBefore(X, I); // (X + (Y << C))
+ m_Specific(Op1)))) {
+ Value *YS = // (Y << C)
+ Builder->CreateShl(Op0BO->getOperand(0), Op1, Op0BO->getName());
+ // (X + (Y << C))
+ Value *X = Builder->CreateBinOp(Op0BO->getOpcode(), YS, V1,
+ Op0BO->getOperand(1)->getName());
uint32_t Op1Val = Op1->getLimitedValue(TypeBits);
return BinaryOperator::CreateAnd(X, ConstantInt::get(*Context,
APInt::getHighBitsSet(TypeBits, TypeBits-Op1Val)));
m_And(m_Shr(m_Value(V1), m_Specific(Op1)),
m_ConstantInt(CC))) &&
cast<BinaryOperator>(Op0BOOp1)->getOperand(0)->hasOneUse()) {
- Instruction *YS = BinaryOperator::CreateShl(
- Op0BO->getOperand(0), Op1,
- Op0BO->getName());
- InsertNewInstBefore(YS, I); // (Y << C)
- Instruction *XM =
- BinaryOperator::CreateAnd(V1,
- ConstantExpr::getShl(CC, Op1),
- V1->getName()+".mask");
- InsertNewInstBefore(XM, I); // X & (CC << C)
-
+ Value *YS = // (Y << C)
+ Builder->CreateShl(Op0BO->getOperand(0), Op1,
+ Op0BO->getName());
+ // X & (CC << C)
+ Value *XM = Builder->CreateAnd(V1, ConstantExpr::getShl(CC, Op1),
+ V1->getName()+".mask");
return BinaryOperator::Create(Op0BO->getOpcode(), YS, XM);
}
}
if (isLeftShift && Op0BO->getOperand(0)->hasOneUse() &&
match(Op0BO->getOperand(0), m_Shr(m_Value(V1),
m_Specific(Op1)))) {
- Instruction *YS = BinaryOperator::CreateShl(
- Op0BO->getOperand(1), Op1,
- Op0BO->getName());
- InsertNewInstBefore(YS, I); // (Y << C)
- Instruction *X =
- BinaryOperator::Create(Op0BO->getOpcode(), V1, YS,
- Op0BO->getOperand(0)->getName());
- InsertNewInstBefore(X, I); // (X + (Y << C))
+ Value *YS = // (Y << C)
+ Builder->CreateShl(Op0BO->getOperand(1), Op1, Op0BO->getName());
+ // (X + (Y << C))
+ Value *X = Builder->CreateBinOp(Op0BO->getOpcode(), V1, YS,
+ Op0BO->getOperand(0)->getName());
uint32_t Op1Val = Op1->getLimitedValue(TypeBits);
return BinaryOperator::CreateAnd(X, ConstantInt::get(*Context,
APInt::getHighBitsSet(TypeBits, TypeBits-Op1Val)));
m_ConstantInt(CC))) && V2 == Op1 &&
cast<BinaryOperator>(Op0BO->getOperand(0))
->getOperand(0)->hasOneUse()) {
- Instruction *YS = BinaryOperator::CreateShl(
- Op0BO->getOperand(1), Op1,
- Op0BO->getName());
- InsertNewInstBefore(YS, I); // (Y << C)
- Instruction *XM =
- BinaryOperator::CreateAnd(V1,
- ConstantExpr::getShl(CC, Op1),
- V1->getName()+".mask");
- InsertNewInstBefore(XM, I); // X & (CC << C)
+ Value *YS = // (Y << C)
+ Builder->CreateShl(Op0BO->getOperand(1), Op1, Op0BO->getName());
+ // X & (CC << C)
+ Value *XM = Builder->CreateAnd(V1, ConstantExpr::getShl(CC, Op1),
+ V1->getName()+".mask");
return BinaryOperator::Create(Op0BO->getOpcode(), XM, YS);
}
if (isValid) {
Constant *NewRHS = ConstantExpr::get(I.getOpcode(), Op0C, Op1);
- Instruction *NewShift =
- BinaryOperator::Create(I.getOpcode(), Op0BO->getOperand(0), Op1);
- InsertNewInstBefore(NewShift, I);
+ Value *NewShift =
+ Builder->CreateBinOp(I.getOpcode(), Op0BO->getOperand(0), Op1);
NewShift->takeName(Op0BO);
return BinaryOperator::Create(Op0BO->getOpcode(), NewShift,
return BinaryOperator::Create(I.getOpcode(), X,
ConstantInt::get(Ty, AmtSum));
- } else if (ShiftOp->getOpcode() == Instruction::LShr &&
- I.getOpcode() == Instruction::AShr) {
+ }
+
+ if (ShiftOp->getOpcode() == Instruction::LShr &&
+ I.getOpcode() == Instruction::AShr) {
if (AmtSum >= TypeBits)
return ReplaceInstUsesWith(I, Constant::getNullValue(I.getType()));
// ((X >>u C1) >>s C2) -> (X >>u (C1+C2)) since C1 != 0.
return BinaryOperator::CreateLShr(X, ConstantInt::get(Ty, AmtSum));
- } else if (ShiftOp->getOpcode() == Instruction::AShr &&
- I.getOpcode() == Instruction::LShr) {
+ }
+
+ if (ShiftOp->getOpcode() == Instruction::AShr &&
+ I.getOpcode() == Instruction::LShr) {
// ((X >>s C1) >>u C2) -> ((X >>s (C1+C2)) & mask) since C1 != 0.
if (AmtSum >= TypeBits)
AmtSum = TypeBits-1;
- Instruction *Shift =
- BinaryOperator::CreateAShr(X, ConstantInt::get(Ty, AmtSum));
- InsertNewInstBefore(Shift, I);
+ Value *Shift = Builder->CreateAShr(X, ConstantInt::get(Ty, AmtSum));
APInt Mask(APInt::getLowBitsSet(TypeBits, TypeBits - ShiftAmt2));
return BinaryOperator::CreateAnd(Shift, ConstantInt::get(*Context, Mask));
break;
default: break;
}
- if (SExtType) {
- Instruction *NewTrunc = new TruncInst(X, SExtType, "sext");
- InsertNewInstBefore(NewTrunc, I);
- return new SExtInst(NewTrunc, Ty);
- }
+ if (SExtType)
+ return new SExtInst(Builder->CreateTrunc(X, SExtType, "sext"), Ty);
// Otherwise, we can't handle it yet.
} else if (ShiftAmt1 < ShiftAmt2) {
uint32_t ShiftDiff = ShiftAmt2-ShiftAmt1;
if (I.getOpcode() == Instruction::Shl) {
assert(ShiftOp->getOpcode() == Instruction::LShr ||
ShiftOp->getOpcode() == Instruction::AShr);
- Instruction *Shift =
- BinaryOperator::CreateShl(X, ConstantInt::get(Ty, ShiftDiff));
- InsertNewInstBefore(Shift, I);
+ Value *Shift = Builder->CreateShl(X, ConstantInt::get(Ty, ShiftDiff));
APInt Mask(APInt::getHighBitsSet(TypeBits, TypeBits - ShiftAmt2));
return BinaryOperator::CreateAnd(Shift,
// (X << C1) >>u C2 --> X >>u (C2-C1) & (-1 >> C2)
if (I.getOpcode() == Instruction::LShr) {
assert(ShiftOp->getOpcode() == Instruction::Shl);
- Instruction *Shift =
- BinaryOperator::CreateLShr(X, ConstantInt::get(Ty, ShiftDiff));
- InsertNewInstBefore(Shift, I);
+ Value *Shift = Builder->CreateLShr(X, ConstantInt::get(Ty, ShiftDiff));
APInt Mask(APInt::getLowBitsSet(TypeBits, TypeBits - ShiftAmt2));
return BinaryOperator::CreateAnd(Shift,
if (I.getOpcode() == Instruction::Shl) {
assert(ShiftOp->getOpcode() == Instruction::LShr ||
ShiftOp->getOpcode() == Instruction::AShr);
- Instruction *Shift =
- BinaryOperator::Create(ShiftOp->getOpcode(), X,
- ConstantInt::get(Ty, ShiftDiff));
- InsertNewInstBefore(Shift, I);
+ Value *Shift = Builder->CreateBinOp(ShiftOp->getOpcode(), X,
+ ConstantInt::get(Ty, ShiftDiff));
APInt Mask(APInt::getHighBitsSet(TypeBits, TypeBits - ShiftAmt2));
return BinaryOperator::CreateAnd(Shift,
// (X << C1) >>u C2 --> X << (C1-C2) & (-1 >> C2)
if (I.getOpcode() == Instruction::LShr) {
assert(ShiftOp->getOpcode() == Instruction::Shl);
- Instruction *Shift =
- BinaryOperator::CreateShl(X, ConstantInt::get(Ty, ShiftDiff));
- InsertNewInstBefore(Shift, I);
+ Value *Shift = Builder->CreateShl(X, ConstantInt::get(Ty, ShiftDiff));
APInt Mask(APInt::getLowBitsSet(TypeBits, TypeBits - ShiftAmt2));
return BinaryOperator::CreateAnd(Shift,
///
static Value *DecomposeSimpleLinearExpr(Value *Val, unsigned &Scale,
int &Offset, LLVMContext *Context) {
- assert(Val->getType() == Type::getInt32Ty(*Context) && "Unexpected allocation size type!");
+ assert(Val->getType() == Type::getInt32Ty(*Context) &&
+ "Unexpected allocation size type!");
if (ConstantInt *CI = dyn_cast<ConstantInt>(Val)) {
Offset = CI->getZExtValue();
Scale = 0;
AllocationInst &AI) {
const PointerType *PTy = cast<PointerType>(CI.getType());
+ BuilderTy AllocaBuilder(*Builder);
+ AllocaBuilder.SetInsertPoint(AI.getParent(), &AI);
+
// Remove any uses of AI that are dead.
assert(!CI.use_empty() && "Dead instructions should be removed earlier!");
if (Scale == 1) {
Amt = NumElements;
} else {
- // If the allocation size is constant, form a constant mul expression
Amt = ConstantInt::get(Type::getInt32Ty(*Context), Scale);
- if (isa<ConstantInt>(NumElements))
- Amt = ConstantExpr::getMul(cast<ConstantInt>(NumElements),
- cast<ConstantInt>(Amt));
- // otherwise multiply the amount and the number of elements
- else {
- Instruction *Tmp = BinaryOperator::CreateMul(Amt, NumElements, "tmp");
- Amt = InsertNewInstBefore(Tmp, AI);
- }
+ // Insert before the alloca, not before the cast.
+ Amt = AllocaBuilder.CreateMul(Amt, NumElements, "tmp");
}
if (int Offset = (AllocElTySize*ArrayOffset)/CastElTySize) {
Value *Off = ConstantInt::get(Type::getInt32Ty(*Context), Offset, true);
- Instruction *Tmp = BinaryOperator::CreateAdd(Amt, Off, "tmp");
- Amt = InsertNewInstBefore(Tmp, AI);
+ Amt = AllocaBuilder.CreateAdd(Amt, Off, "tmp");
}
AllocationInst *New;
if (isa<MallocInst>(AI))
- New = new MallocInst(CastElTy, Amt, AI.getAlignment());
+ New = AllocaBuilder.CreateMalloc(CastElTy, Amt);
else
- New = new AllocaInst(CastElTy, Amt, AI.getAlignment());
- InsertNewInstBefore(New, AI);
+ New = AllocaBuilder.CreateAlloca(CastElTy, Amt);
+ New->setAlignment(AI.getAlignment());
New->takeName(&AI);
// If the allocation has one real use plus a dbg.declare, just remove the
else if (!AI.hasOneUse()) {
// New is the allocation instruction, pointer typed. AI is the original
// allocation instruction, also pointer typed. Thus, cast to use is BitCast.
- CastInst *NewCast = new BitCastInst(New, AI.getType(), "tmpcast");
- InsertNewInstBefore(NewCast, AI);
+ Value *NewCast = AllocaBuilder.CreateBitCast(New, AI.getType(), "tmpcast");
AI.replaceAllUsesWith(NewCast);
}
return ReplaceInstUsesWith(CI, New);
// If we were able to index down into an element, create the GEP
// and bitcast the result. This eliminates one bitcast, potentially
// two.
- Instruction *NGEP = GetElementPtrInst::Create(OrigBase,
- NewIndices.begin(),
- NewIndices.end(), "");
- InsertNewInstBefore(NGEP, CI);
+ Value *NGEP = Builder->CreateGEP(OrigBase, NewIndices.begin(),
+ NewIndices.end());
NGEP->takeName(GEP);
- if (cast<GEPOperator>(GEP)->isInBounds())
+ if (isa<Instruction>(NGEP) && cast<GEPOperator>(GEP)->isInBounds())
cast<GEPOperator>(NGEP)->setIsInBounds(true);
if (isa<BitCastInst>(CI))
// Canonicalize trunc x to i1 -> (icmp ne (and x, 1), 0)
if (DestBitWidth == 1) {
Constant *One = ConstantInt::get(Src->getType(), 1);
- Src = InsertNewInstBefore(BinaryOperator::CreateAnd(Src, One, "tmp"), CI);
+ Src = Builder->CreateAnd(Src, One, "tmp");
Value *Zero = Constant::getNullValue(Src->getType());
return new ICmpInst(ICmpInst::ICMP_NE, Src, Zero);
}
Value *In = ICI->getOperand(0);
Value *Sh = ConstantInt::get(In->getType(),
In->getType()->getScalarSizeInBits()-1);
- In = InsertNewInstBefore(BinaryOperator::CreateLShr(In, Sh,
- In->getName()+".lobit"),
- CI);
+ In = Builder->CreateLShr(In, Sh, In->getName()+".lobit");
if (In->getType() != CI.getType())
- In = CastInst::CreateIntegerCast(In, CI.getType(),
- false/*ZExt*/, "tmp", &CI);
+ In = Builder->CreateIntCast(In, CI.getType(), false/*ZExt*/, "tmp");
if (ICI->getPredicate() == ICmpInst::ICMP_SGT) {
Constant *One = ConstantInt::get(In->getType(), 1);
- In = InsertNewInstBefore(BinaryOperator::CreateXor(In, One,
- In->getName()+".not"),
- CI);
+ In = Builder->CreateXor(In, One, In->getName()+".not");
}
return ReplaceInstUsesWith(CI, In);
if (ShiftAmt) {
// Perform a logical shr by shiftamt.
// Insert the shift to put the result in the low bit.
- In = InsertNewInstBefore(BinaryOperator::CreateLShr(In,
- ConstantInt::get(In->getType(), ShiftAmt),
- In->getName()+".lobit"), CI);
+ In = Builder->CreateLShr(In, ConstantInt::get(In->getType(),ShiftAmt),
+ In->getName()+".lobit");
}
if ((Op1CV != 0) == isNE) { // Toggle the low bit.
Constant *One = ConstantInt::get(In->getType(), 1);
- In = BinaryOperator::CreateXor(In, One, "tmp");
- InsertNewInstBefore(cast<Instruction>(In), CI);
+ In = Builder->CreateXor(In, One, "tmp");
}
if (CI.getType() == In->getType())
if (SrcSize < DstSize) {
APInt AndValue(APInt::getLowBitsSet(SrcSize, MidSize));
Constant *AndConst = ConstantInt::get(A->getType(), AndValue);
- Instruction *And =
- BinaryOperator::CreateAnd(A, AndConst, CSrc->getName()+".mask");
- InsertNewInstBefore(And, CI);
+ Value *And = Builder->CreateAnd(A, AndConst, CSrc->getName()+".mask");
return new ZExtInst(And, CI.getType());
- } else if (SrcSize == DstSize) {
+ }
+
+ if (SrcSize == DstSize) {
APInt AndValue(APInt::getLowBitsSet(SrcSize, MidSize));
return BinaryOperator::CreateAnd(A, ConstantInt::get(A->getType(),
AndValue));
- } else if (SrcSize > DstSize) {
- Instruction *Trunc = new TruncInst(A, CI.getType(), "tmp");
- InsertNewInstBefore(Trunc, CI);
+ }
+ if (SrcSize > DstSize) {
+ Value *Trunc = Builder->CreateTrunc(A, CI.getType(), "tmp");
APInt AndValue(APInt::getLowBitsSet(DstSize, MidSize));
return BinaryOperator::CreateAnd(Trunc,
ConstantInt::get(Trunc->getType(),
Value *TI0 = TI->getOperand(0);
if (TI0->getType() == CI.getType()) {
Constant *ZC = ConstantExpr::getZExt(C, CI.getType());
- Instruction *NewAnd = BinaryOperator::CreateAnd(TI0, ZC, "tmp");
- InsertNewInstBefore(NewAnd, *And);
+ Value *NewAnd = Builder->CreateAnd(TI0, ZC, "tmp");
return BinaryOperator::CreateXor(NewAnd, ZC);
}
}
unsigned SrcDstSize = CI.getType()->getScalarSizeInBits();
unsigned ShAmt = CA->getZExtValue()+SrcDstSize-MidSize;
Constant *ShAmtV = ConstantInt::get(CI.getType(), ShAmt);
- I = InsertNewInstBefore(BinaryOperator::CreateShl(I, ShAmtV,
- CI.getName()), CI);
+ I = Builder->CreateShl(I, ShAmtV, CI.getName());
return BinaryOperator::CreateAShr(I, ShAmtV);
}
}
// pointers.
if (TD &&
CI.getType()->getScalarSizeInBits() < TD->getPointerSizeInBits()) {
- Value *P = InsertNewInstBefore(new PtrToIntInst(CI.getOperand(0),
- TD->getIntPtrType(CI.getContext()),
- "tmp"), CI);
+ Value *P = Builder->CreatePtrToInt(CI.getOperand(0),
+ TD->getIntPtrType(CI.getContext()),
+ "tmp");
return new TruncInst(P, CI.getType());
}
// allows the trunc to be exposed to other transforms. Don't do this for
// extending inttoptr's, because we don't know if the target sign or zero
// extends to pointers.
- if (TD &&
- CI.getOperand(0)->getType()->getScalarSizeInBits() >
+ if (TD && CI.getOperand(0)->getType()->getScalarSizeInBits() >
TD->getPointerSizeInBits()) {
- Value *P = InsertNewInstBefore(new TruncInst(CI.getOperand(0),
- TD->getIntPtrType(CI.getContext()),
- "tmp"), CI);
+ Value *P = Builder->CreateTrunc(CI.getOperand(0),
+ TD->getIntPtrType(CI.getContext()), "tmp");
return new IntToPtrInst(P, CI.getType());
}
if (const VectorType *SrcVTy = dyn_cast<VectorType>(SrcTy)) {
if (SrcVTy->getNumElements() == 1) {
if (!isa<VectorType>(DestTy)) {
- Instruction *Elem =
- ExtractElementInst::Create(Src, Constant::getNullValue(Type::getInt32Ty(*Context)));
- InsertNewInstBefore(Elem, CI);
+ Value *Elem =
+ Builder->CreateExtractElement(Src,
+ Constant::getNullValue(Type::getInt32Ty(*Context)));
return CastInst::Create(Instruction::BitCast, Elem, DestTy);
}
}
return &CI;
}
-
-
IntrinsicInst *II = dyn_cast<IntrinsicInst>(&CI);
if (!II) return visitCallSite(&CI);
Idx &= 31; // Match the hardware behavior.
if (ExtractedElts[Idx] == 0) {
- Instruction *Elt =
- ExtractElementInst::Create(Idx < 16 ? Op0 : Op1,
- ConstantInt::get(Type::getInt32Ty(*Context), Idx&15, false), "tmp");
- InsertNewInstBefore(Elt, CI);
- ExtractedElts[Idx] = Elt;
+ ExtractedElts[Idx] =
+ Builder->CreateExtractElement(Idx < 16 ? Op0 : Op1,
+ ConstantInt::get(Type::getInt32Ty(*Context), Idx&15, false),
+ "tmp");
}
// Insert this value into the result vector.
- Result = InsertElementInst::Create(Result, ExtractedElts[Idx],
- ConstantInt::get(Type::getInt32Ty(*Context), i, false),
- "tmp");
- InsertNewInstBefore(cast<Instruction>(Result), CI);
+ Result = Builder->CreateInsertElement(Result, ExtractedElts[Idx],
+ ConstantInt::get(Type::getInt32Ty(*Context), i, false),
+ "tmp");
}
return CastInst::Create(Instruction::BitCast, Result, CI.getType());
}
} else {
Instruction::CastOps opcode = CastInst::getCastOpcode(*AI,
false, ParamTy, false);
- CastInst *NewCast = CastInst::Create(opcode, *AI, ParamTy, "tmp");
- Args.push_back(InsertNewInstBefore(NewCast, *Caller));
+ Args.push_back(Builder->CreateCast(opcode, *AI, ParamTy, "tmp"));
}
// Add any parameter attributes.
}
// If the function takes more arguments than the call was taking, add them
- // now...
+ // now.
for (unsigned i = NumCommonArgs; i != FT->getNumParams(); ++i)
Args.push_back(Constant::getNullValue(FT->getParamType(i)));
- // If we are removing arguments to the function, emit an obnoxious warning...
+ // If we are removing arguments to the function, emit an obnoxious warning.
if (FT->getNumParams() < NumActualArgs) {
if (!FT->isVarArg()) {
errs() << "WARNING: While resolving call to function '"
<< Callee->getName() << "' arguments were dropped!\n";
} else {
- // Add all of the arguments in their promoted form to the arg list...
+ // Add all of the arguments in their promoted form to the arg list.
for (unsigned i = FT->getNumParams(); i != NumActualArgs; ++i, ++AI) {
const Type *PTy = getPromotedType((*AI)->getType());
if (PTy != (*AI)->getType()) {
// Must promote to pass through va_arg area!
- Instruction::CastOps opcode = CastInst::getCastOpcode(*AI, false,
- PTy, false);
- Instruction *Cast = CastInst::Create(opcode, *AI, PTy, "tmp");
- InsertNewInstBefore(Cast, *Caller);
- Args.push_back(Cast);
+ Instruction::CastOps opcode =
+ CastInst::getCastOpcode(*AI, false, PTy, false);
+ Args.push_back(Builder->CreateCast(opcode, *AI, PTy, "tmp"));
} else {
Args.push_back(*AI);
}
// normalized.
if (SO1->getType() != GO1->getType())
return 0;
- if (isa<Constant>(SO1) && isa<Constant>(GO1))
- Sum = ConstantExpr::getAdd(cast<Constant>(SO1), cast<Constant>(GO1));
- else {
- Sum = BinaryOperator::CreateAdd(SO1, GO1, PtrOp->getName()+".sum");
- InsertNewInstBefore(cast<Instruction>(Sum), GEP);
- }
+ Sum = Builder->CreateAdd(SO1, GO1, PtrOp->getName()+".sum");
}
// Update the GEP in place if possible.
Value *Idx[2];
Idx[0] = Constant::getNullValue(Type::getInt32Ty(*Context));
Idx[1] = GEP.getOperand(1);
- GetElementPtrInst *NewGEP =
- GetElementPtrInst::Create(X, Idx, Idx + 2, GEP.getName());
+ Value *NewGEP =
+ Builder->CreateGEP(X, Idx, Idx + 2, GEP.getName());
if (cast<GEPOperator>(&GEP)->isInBounds())
cast<GEPOperator>(NewGEP)->setIsInBounds(true);
- Value *V = InsertNewInstBefore(NewGEP, GEP);
// V and GEP are both pointer types --> BitCast
- return new BitCastInst(V, GEP.getType());
+ return new BitCastInst(NewGEP, GEP.getType());
}
// Transform things like:
if (Scale->getZExtValue() != 1) {
Constant *C = ConstantExpr::getIntegerCast(Scale, NewIdx->getType(),
false /*ZExt*/);
- Instruction *Sc = BinaryOperator::CreateMul(NewIdx, C, "idxscale");
- NewIdx = InsertNewInstBefore(Sc, GEP);
+ NewIdx = Builder->CreateMul(NewIdx, C, "idxscale");
}
// Insert the new GEP instruction.
Value *Idx[2];
Idx[0] = Constant::getNullValue(Type::getInt32Ty(*Context));
Idx[1] = NewIdx;
- Instruction *NewGEP =
- GetElementPtrInst::Create(X, Idx, Idx + 2, GEP.getName());
+ Value *NewGEP = Builder->CreateGEP(X, Idx, Idx + 2, GEP.getName());
if (cast<GEPOperator>(&GEP)->isInBounds())
cast<GEPOperator>(NewGEP)->setIsInBounds(true);
- NewGEP = InsertNewInstBefore(NewGEP, GEP);
// The NewGEP must be pointer typed, so must the old one -> BitCast
return new BitCastInst(NewGEP, GEP.getType());
}
const Type *InTy =
cast<PointerType>(BCI->getOperand(0)->getType())->getElementType();
if (FindElementAtOffset(InTy, Offset, NewIndices, TD, Context)) {
- Instruction *NGEP =
- GetElementPtrInst::Create(BCI->getOperand(0), NewIndices.begin(),
- NewIndices.end());
- if (NGEP->getType() == GEP.getType()) return NGEP;
+ Value *NGEP = Builder->CreateGEP(BCI->getOperand(0), NewIndices.begin(),
+ NewIndices.end());
if (cast<GEPOperator>(&GEP)->isInBounds())
cast<GEPOperator>(NGEP)->setIsInBounds(true);
- InsertNewInstBefore(NGEP, GEP);
+
+ if (NGEP->getType() == GEP.getType())
+ return ReplaceInstUsesWith(GEP, NGEP);
NGEP->takeName(&GEP);
return new BitCastInst(NGEP, GEP.getType());
}
// Create and insert the replacement instruction...
if (isa<MallocInst>(AI))
- New = new MallocInst(NewTy, 0, AI.getAlignment(), AI.getName());
+ New = Builder->CreateMalloc(NewTy, 0, AI.getName());
else {
assert(isa<AllocaInst>(AI) && "Unknown type of allocation inst!");
- New = new AllocaInst(NewTy, 0, AI.getAlignment(), AI.getName());
+ New = Builder->CreateAlloca(NewTy, 0, AI.getName());
}
-
- InsertNewInstBefore(New, AI);
+ New->setAlignment(AI.getAlignment());
// Scan to the end of the allocation instructions, to skip over a block of
// allocas if possible...also skip interleaved debug info
// Okay, we are casting from one integer or pointer type to another of
// the same size. Instead of casting the pointer before the load, cast
// the result of the loaded value.
- Value *NewLoad = IC.InsertNewInstBefore(new LoadInst(CastOp,
- CI->getName(),
- LI.isVolatile()),LI);
+ Value *NewLoad =
+ IC.Builder->CreateLoad(CastOp, LI.isVolatile(), CI->getName());
// Now cast the result of the load.
return new BitCastInst(NewLoad, LI.getType());
}
// load (select (Cond, &V1, &V2)) --> select(Cond, load &V1, load &V2).
if (isSafeToLoadUnconditionally(SI->getOperand(1), SI) &&
isSafeToLoadUnconditionally(SI->getOperand(2), SI)) {
- Value *V1 = InsertNewInstBefore(new LoadInst(SI->getOperand(1),
- SI->getOperand(1)->getName()+".val"), LI);
- Value *V2 = InsertNewInstBefore(new LoadInst(SI->getOperand(2),
- SI->getOperand(2)->getName()+".val"), LI);
+ Value *V1 = Builder->CreateLoad(SI->getOperand(1),
+ SI->getOperand(1)->getName()+".val");
+ Value *V2 = Builder->CreateLoad(SI->getOperand(2),
+ SI->getOperand(2)->getName()+".val");
return SelectInst::Create(SI->getCondition(), V1, V2);
}
// SIOp0 is a pointer to aggregate and this is a store to the first field,
// emit a GEP to index into its first field.
if (!NewGEPIndices.empty()) {
- if (Constant *C = dyn_cast<Constant>(CastOp))
- CastOp = ConstantExpr::getGetElementPtr(C, &NewGEPIndices[0],
- NewGEPIndices.size());
- else
- CastOp = IC.InsertNewInstBefore(
- GetElementPtrInst::Create(CastOp, NewGEPIndices.begin(),
- NewGEPIndices.end()), SI);
+ CastOp = IC.Builder->CreateGEP(CastOp, NewGEPIndices.begin(),
+ NewGEPIndices.end());
cast<GEPOperator>(CastOp)->setIsInBounds(true);
}
- if (Constant *C = dyn_cast<Constant>(SIOp0))
- NewCast = ConstantExpr::getCast(opcode, C, CastDstTy);
- else
- NewCast = IC.InsertNewInstBefore(
- CastInst::Create(opcode, SIOp0, CastDstTy, SIOp0->getName()+".c"),
- SI);
+ NewCast = IC.Builder->CreateCast(opcode, SIOp0, CastDstTy,
+ SIOp0->getName()+".c");
return new StoreInst(NewCast, CastOp);
}
// %E = insertvalue { i32 } %X, i32 42, 0
// by switching the order of the insert and extract (though the
// insertvalue should be left in, since it may have other uses).
- Value *NewEV = InsertNewInstBefore(
- ExtractValueInst::Create(IV->getAggregateOperand(),
- EV.idx_begin(), EV.idx_end()),
- EV);
+ Value *NewEV = Builder->CreateExtractValue(IV->getAggregateOperand(),
+ EV.idx_begin(), EV.idx_end());
return InsertValueInst::Create(NewEV, IV->getInsertedValueOperand(),
insi, inse);
}
if (BinaryOperator *BO = dyn_cast<BinaryOperator>(I)) {
bool isConstantElt = isa<ConstantInt>(EI.getOperand(1));
if (CheapToScalarize(BO, isConstantElt)) {
- ExtractElementInst *newEI0 =
- ExtractElementInst::Create(BO->getOperand(0), EI.getOperand(1),
- EI.getName()+".lhs");
- ExtractElementInst *newEI1 =
- ExtractElementInst::Create(BO->getOperand(1), EI.getOperand(1),
- EI.getName()+".rhs");
- InsertNewInstBefore(newEI0, EI);
- InsertNewInstBefore(newEI1, EI);
+ Value *newEI0 =
+ Builder->CreateExtractElement(BO->getOperand(0), EI.getOperand(1),
+ EI.getName()+".lhs");
+ Value *newEI1 =
+ Builder->CreateExtractElement(BO->getOperand(1), EI.getOperand(1),
+ EI.getName()+".rhs");
return BinaryOperator::Create(BO->getOpcode(), newEI0, newEI1);
}
} else if (isa<LoadInst>(I)) {
cast<PointerType>(I->getOperand(0)->getType())->getAddressSpace();
Value *Ptr = InsertBitCastBefore(I->getOperand(0),
PointerType::get(EI.getType(), AS),*I);
- GetElementPtrInst *GEP =
- GetElementPtrInst::Create(Ptr, EI.getOperand(1), I->getName()+".gep");
+ Value *GEP =
+ Builder->CreateGEP(Ptr, EI.getOperand(1), I->getName()+".gep");
cast<GEPOperator>(GEP)->setIsInBounds(true);
- InsertNewInstBefore(GEP, *I);
- LoadInst* Load = new LoadInst(GEP, "tmp");
- InsertNewInstBefore(Load, *I);
+
+ LoadInst *Load = Builder->CreateLoad(GEP, "tmp");
+
+ // Make sure the Load goes before the load instruction in the source,
+ // not wherever the extract happens to be.
+ Load->moveBefore(I);
+
return ReplaceInstUsesWith(EI, Load);
}
}
projects / oota-llvm.git / commitdiff