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-rw-r--r--contrib/llvm/lib/IR/Constants.cpp192
1 files changed, 131 insertions, 61 deletions
diff --git a/contrib/llvm/lib/IR/Constants.cpp b/contrib/llvm/lib/IR/Constants.cpp
index 44052b2..fb83ebb 100644
--- a/contrib/llvm/lib/IR/Constants.cpp
+++ b/contrib/llvm/lib/IR/Constants.cpp
@@ -663,6 +663,17 @@ Constant *ConstantFP::get(Type *Ty, StringRef Str) {
return C;
}
+Constant *ConstantFP::getNaN(Type *Ty, bool Negative, unsigned Type) {
+ const fltSemantics &Semantics = *TypeToFloatSemantics(Ty->getScalarType());
+ APFloat NaN = APFloat::getNaN(Semantics, Negative, Type);
+ Constant *C = get(Ty->getContext(), NaN);
+
+ if (VectorType *VTy = dyn_cast<VectorType>(Ty))
+ return ConstantVector::getSplat(VTy->getNumElements(), C);
+
+ return C;
+}
+
Constant *ConstantFP::getNegativeZero(Type *Ty) {
const fltSemantics &Semantics = *TypeToFloatSemantics(Ty->getScalarType());
APFloat NegZero = APFloat::getZero(Semantics, /*Negative=*/true);
@@ -911,23 +922,25 @@ Constant *ConstantArray::getImpl(ArrayType *Ty, ArrayRef<Constant*> V) {
if (ConstantFP *CFP = dyn_cast<ConstantFP>(C)) {
if (CFP->getType()->isFloatTy()) {
- SmallVector<float, 16> Elts;
+ SmallVector<uint32_t, 16> Elts;
for (unsigned i = 0, e = V.size(); i != e; ++i)
if (ConstantFP *CFP = dyn_cast<ConstantFP>(V[i]))
- Elts.push_back(CFP->getValueAPF().convertToFloat());
+ Elts.push_back(
+ CFP->getValueAPF().bitcastToAPInt().getLimitedValue());
else
break;
if (Elts.size() == V.size())
- return ConstantDataArray::get(C->getContext(), Elts);
+ return ConstantDataArray::getFP(C->getContext(), Elts);
} else if (CFP->getType()->isDoubleTy()) {
- SmallVector<double, 16> Elts;
+ SmallVector<uint64_t, 16> Elts;
for (unsigned i = 0, e = V.size(); i != e; ++i)
if (ConstantFP *CFP = dyn_cast<ConstantFP>(V[i]))
- Elts.push_back(CFP->getValueAPF().convertToDouble());
+ Elts.push_back(
+ CFP->getValueAPF().bitcastToAPInt().getLimitedValue());
else
break;
if (Elts.size() == V.size())
- return ConstantDataArray::get(C->getContext(), Elts);
+ return ConstantDataArray::getFP(C->getContext(), Elts);
}
}
}
@@ -1097,23 +1110,25 @@ Constant *ConstantVector::getImpl(ArrayRef<Constant*> V) {
if (ConstantFP *CFP = dyn_cast<ConstantFP>(C)) {
if (CFP->getType()->isFloatTy()) {
- SmallVector<float, 16> Elts;
+ SmallVector<uint32_t, 16> Elts;
for (unsigned i = 0, e = V.size(); i != e; ++i)
if (ConstantFP *CFP = dyn_cast<ConstantFP>(V[i]))
- Elts.push_back(CFP->getValueAPF().convertToFloat());
+ Elts.push_back(
+ CFP->getValueAPF().bitcastToAPInt().getLimitedValue());
else
break;
if (Elts.size() == V.size())
- return ConstantDataVector::get(C->getContext(), Elts);
+ return ConstantDataVector::getFP(C->getContext(), Elts);
} else if (CFP->getType()->isDoubleTy()) {
- SmallVector<double, 16> Elts;
+ SmallVector<uint64_t, 16> Elts;
for (unsigned i = 0, e = V.size(); i != e; ++i)
if (ConstantFP *CFP = dyn_cast<ConstantFP>(V[i]))
- Elts.push_back(CFP->getValueAPF().convertToDouble());
+ Elts.push_back(
+ CFP->getValueAPF().bitcastToAPInt().getLimitedValue());
else
break;
if (Elts.size() == V.size())
- return ConstantDataVector::get(C->getContext(), Elts);
+ return ConstantDataVector::getFP(C->getContext(), Elts);
}
}
}
@@ -1211,11 +1226,9 @@ ConstantExpr::getWithOperandReplaced(unsigned OpNo, Constant *Op) const {
Constant *ConstantExpr::getWithOperands(ArrayRef<Constant *> Ops, Type *Ty,
bool OnlyIfReduced) const {
assert(Ops.size() == getNumOperands() && "Operand count mismatch!");
- bool AnyChange = Ty != getType();
- for (unsigned i = 0; i != Ops.size(); ++i)
- AnyChange |= Ops[i] != getOperand(i);
- if (!AnyChange) // No operands changed, return self.
+ // If no operands changed return self.
+ if (Ty == getType() && std::equal(Ops.begin(), Ops.end(), op_begin()))
return const_cast<ConstantExpr*>(this);
Type *OnlyIfReducedTy = OnlyIfReduced ? Ty : nullptr;
@@ -1250,7 +1263,7 @@ Constant *ConstantExpr::getWithOperands(ArrayRef<Constant *> Ops, Type *Ty,
return ConstantExpr::getShuffleVector(Ops[0], Ops[1], Ops[2],
OnlyIfReducedTy);
case Instruction::GetElementPtr:
- return ConstantExpr::getGetElementPtr(Ops[0], Ops.slice(1),
+ return ConstantExpr::getGetElementPtr(nullptr, Ops[0], Ops.slice(1),
cast<GEPOperator>(this)->isInBounds(),
OnlyIfReducedTy);
case Instruction::ICmp:
@@ -1923,7 +1936,7 @@ Constant *ConstantExpr::getSizeOf(Type* Ty) {
// Note that a non-inbounds gep is used, as null isn't within any object.
Constant *GEPIdx = ConstantInt::get(Type::getInt32Ty(Ty->getContext()), 1);
Constant *GEP = getGetElementPtr(
- Constant::getNullValue(PointerType::getUnqual(Ty)), GEPIdx);
+ Ty, Constant::getNullValue(PointerType::getUnqual(Ty)), GEPIdx);
return getPtrToInt(GEP,
Type::getInt64Ty(Ty->getContext()));
}
@@ -1937,7 +1950,7 @@ Constant *ConstantExpr::getAlignOf(Type* Ty) {
Constant *Zero = ConstantInt::get(Type::getInt64Ty(Ty->getContext()), 0);
Constant *One = ConstantInt::get(Type::getInt32Ty(Ty->getContext()), 1);
Constant *Indices[2] = { Zero, One };
- Constant *GEP = getGetElementPtr(NullPtr, Indices);
+ Constant *GEP = getGetElementPtr(AligningTy, NullPtr, Indices);
return getPtrToInt(GEP,
Type::getInt64Ty(Ty->getContext()));
}
@@ -1955,7 +1968,7 @@ Constant *ConstantExpr::getOffsetOf(Type* Ty, Constant *FieldNo) {
FieldNo
};
Constant *GEP = getGetElementPtr(
- Constant::getNullValue(PointerType::getUnqual(Ty)), GEPIdx);
+ Ty, Constant::getNullValue(PointerType::getUnqual(Ty)), GEPIdx);
return getPtrToInt(GEP,
Type::getInt64Ty(Ty->getContext()));
}
@@ -1999,19 +2012,24 @@ Constant *ConstantExpr::getSelect(Constant *C, Constant *V1, Constant *V2,
return pImpl->ExprConstants.getOrCreate(V1->getType(), Key);
}
-Constant *ConstantExpr::getGetElementPtr(Constant *C, ArrayRef<Value *> Idxs,
- bool InBounds, Type *OnlyIfReducedTy) {
- assert(C->getType()->isPtrOrPtrVectorTy() &&
- "Non-pointer type for constant GetElementPtr expression");
+Constant *ConstantExpr::getGetElementPtr(Type *Ty, Constant *C,
+ ArrayRef<Value *> Idxs, bool InBounds,
+ Type *OnlyIfReducedTy) {
+ if (!Ty)
+ Ty = cast<PointerType>(C->getType()->getScalarType())->getElementType();
+ else
+ assert(
+ Ty ==
+ cast<PointerType>(C->getType()->getScalarType())->getContainedType(0u));
- if (Constant *FC = ConstantFoldGetElementPtr(C, InBounds, Idxs))
+ if (Constant *FC = ConstantFoldGetElementPtr(Ty, C, InBounds, Idxs))
return FC; // Fold a few common cases.
// Get the result type of the getelementptr!
- Type *Ty = GetElementPtrInst::getIndexedType(C->getType(), Idxs);
- assert(Ty && "GEP indices invalid!");
+ Type *DestTy = GetElementPtrInst::getIndexedType(Ty, Idxs);
+ assert(DestTy && "GEP indices invalid!");
unsigned AS = C->getType()->getPointerAddressSpace();
- Type *ReqTy = Ty->getPointerTo(AS);
+ Type *ReqTy = DestTy->getPointerTo(AS);
if (VectorType *VecTy = dyn_cast<VectorType>(C->getType()))
ReqTy = VectorType::get(ReqTy, VecTy->getNumElements());
@@ -2032,7 +2050,8 @@ Constant *ConstantExpr::getGetElementPtr(Constant *C, ArrayRef<Value *> Idxs,
ArgVec.push_back(cast<Constant>(Idxs[i]));
}
const ConstantExprKeyType Key(Instruction::GetElementPtr, ArgVec, 0,
- InBounds ? GEPOperator::IsInBounds : 0);
+ InBounds ? GEPOperator::IsInBounds : 0, None,
+ Ty);
LLVMContextImpl *pImpl = C->getContext().pImpl;
return pImpl->ExprConstants.getOrCreate(ReqTy, Key);
@@ -2362,19 +2381,22 @@ const char *ConstantExpr::getOpcodeName() const {
return Instruction::getOpcodeName(getOpcode());
}
-
-
-GetElementPtrConstantExpr::
-GetElementPtrConstantExpr(Constant *C, ArrayRef<Constant*> IdxList,
- Type *DestTy)
- : ConstantExpr(DestTy, Instruction::GetElementPtr,
- OperandTraits<GetElementPtrConstantExpr>::op_end(this)
- - (IdxList.size()+1), IdxList.size()+1) {
- OperandList[0] = C;
+GetElementPtrConstantExpr::GetElementPtrConstantExpr(
+ Type *SrcElementTy, Constant *C, ArrayRef<Constant *> IdxList, Type *DestTy)
+ : ConstantExpr(DestTy, Instruction::GetElementPtr,
+ OperandTraits<GetElementPtrConstantExpr>::op_end(this) -
+ (IdxList.size() + 1),
+ IdxList.size() + 1),
+ SrcElementTy(SrcElementTy) {
+ Op<0>() = C;
for (unsigned i = 0, E = IdxList.size(); i != E; ++i)
OperandList[i+1] = IdxList[i];
}
+Type *GetElementPtrConstantExpr::getSourceElementType() const {
+ return SrcElementTy;
+}
+
//===----------------------------------------------------------------------===//
// ConstantData* implementations
@@ -2544,7 +2566,31 @@ Constant *ConstantDataArray::get(LLVMContext &Context, ArrayRef<float> Elts) {
Constant *ConstantDataArray::get(LLVMContext &Context, ArrayRef<double> Elts) {
Type *Ty = ArrayType::get(Type::getDoubleTy(Context), Elts.size());
const char *Data = reinterpret_cast<const char *>(Elts.data());
- return getImpl(StringRef(const_cast<char *>(Data), Elts.size()*8), Ty);
+ return getImpl(StringRef(const_cast<char *>(Data), Elts.size() * 8), Ty);
+}
+
+/// getFP() constructors - Return a constant with array type with an element
+/// count and element type of float with precision matching the number of
+/// bits in the ArrayRef passed in. (i.e. half for 16bits, float for 32bits,
+/// double for 64bits) Note that this can return a ConstantAggregateZero
+/// object.
+Constant *ConstantDataArray::getFP(LLVMContext &Context,
+ ArrayRef<uint16_t> Elts) {
+ Type *Ty = VectorType::get(Type::getHalfTy(Context), Elts.size());
+ const char *Data = reinterpret_cast<const char *>(Elts.data());
+ return getImpl(StringRef(const_cast<char *>(Data), Elts.size() * 2), Ty);
+}
+Constant *ConstantDataArray::getFP(LLVMContext &Context,
+ ArrayRef<uint32_t> Elts) {
+ Type *Ty = ArrayType::get(Type::getFloatTy(Context), Elts.size());
+ const char *Data = reinterpret_cast<const char *>(Elts.data());
+ return getImpl(StringRef(const_cast<char *>(Data), Elts.size() * 4), Ty);
+}
+Constant *ConstantDataArray::getFP(LLVMContext &Context,
+ ArrayRef<uint64_t> Elts) {
+ Type *Ty = ArrayType::get(Type::getDoubleTy(Context), Elts.size());
+ const char *Data = reinterpret_cast<const char *>(Elts.data());
+ return getImpl(StringRef(const_cast<char *>(Data), Elts.size() * 8), Ty);
}
/// getString - This method constructs a CDS and initializes it with a text
@@ -2597,7 +2643,31 @@ Constant *ConstantDataVector::get(LLVMContext &Context, ArrayRef<float> Elts) {
Constant *ConstantDataVector::get(LLVMContext &Context, ArrayRef<double> Elts) {
Type *Ty = VectorType::get(Type::getDoubleTy(Context), Elts.size());
const char *Data = reinterpret_cast<const char *>(Elts.data());
- return getImpl(StringRef(const_cast<char *>(Data), Elts.size()*8), Ty);
+ return getImpl(StringRef(const_cast<char *>(Data), Elts.size() * 8), Ty);
+}
+
+/// getFP() constructors - Return a constant with vector type with an element
+/// count and element type of float with the precision matching the number of
+/// bits in the ArrayRef passed in. (i.e. half for 16bits, float for 32bits,
+/// double for 64bits) Note that this can return a ConstantAggregateZero
+/// object.
+Constant *ConstantDataVector::getFP(LLVMContext &Context,
+ ArrayRef<uint16_t> Elts) {
+ Type *Ty = VectorType::get(Type::getHalfTy(Context), Elts.size());
+ const char *Data = reinterpret_cast<const char *>(Elts.data());
+ return getImpl(StringRef(const_cast<char *>(Data), Elts.size() * 2), Ty);
+}
+Constant *ConstantDataVector::getFP(LLVMContext &Context,
+ ArrayRef<uint32_t> Elts) {
+ Type *Ty = VectorType::get(Type::getFloatTy(Context), Elts.size());
+ const char *Data = reinterpret_cast<const char *>(Elts.data());
+ return getImpl(StringRef(const_cast<char *>(Data), Elts.size() * 4), Ty);
+}
+Constant *ConstantDataVector::getFP(LLVMContext &Context,
+ ArrayRef<uint64_t> Elts) {
+ Type *Ty = VectorType::get(Type::getDoubleTy(Context), Elts.size());
+ const char *Data = reinterpret_cast<const char *>(Elts.data());
+ return getImpl(StringRef(const_cast<char *>(Data), Elts.size() * 8), Ty);
}
Constant *ConstantDataVector::getSplat(unsigned NumElts, Constant *V) {
@@ -2623,13 +2693,14 @@ Constant *ConstantDataVector::getSplat(unsigned NumElts, Constant *V) {
if (ConstantFP *CFP = dyn_cast<ConstantFP>(V)) {
if (CFP->getType()->isFloatTy()) {
- SmallVector<float, 16> Elts(NumElts, CFP->getValueAPF().convertToFloat());
- return get(V->getContext(), Elts);
+ SmallVector<uint32_t, 16> Elts(
+ NumElts, CFP->getValueAPF().bitcastToAPInt().getLimitedValue());
+ return getFP(V->getContext(), Elts);
}
if (CFP->getType()->isDoubleTy()) {
- SmallVector<double, 16> Elts(NumElts,
- CFP->getValueAPF().convertToDouble());
- return get(V->getContext(), Elts);
+ SmallVector<uint64_t, 16> Elts(
+ NumElts, CFP->getValueAPF().bitcastToAPInt().getLimitedValue());
+ return getFP(V->getContext(), Elts);
}
}
return ConstantVector::getSplat(NumElts, V);
@@ -2667,13 +2738,13 @@ APFloat ConstantDataSequential::getElementAsAPFloat(unsigned Elt) const {
default:
llvm_unreachable("Accessor can only be used when element is float/double!");
case Type::FloatTyID: {
- const float *FloatPrt = reinterpret_cast<const float *>(EltPtr);
- return APFloat(*const_cast<float *>(FloatPrt));
- }
+ auto EltVal = *reinterpret_cast<const uint32_t *>(EltPtr);
+ return APFloat(APFloat::IEEEsingle, APInt(32, EltVal));
+ }
case Type::DoubleTyID: {
- const double *DoublePtr = reinterpret_cast<const double *>(EltPtr);
- return APFloat(*const_cast<double *>(DoublePtr));
- }
+ auto EltVal = *reinterpret_cast<const uint64_t *>(EltPtr);
+ return APFloat(APFloat::IEEEdouble, APInt(64, EltVal));
+ }
}
}
@@ -2918,10 +2989,7 @@ void ConstantExpr::replaceUsesOfWithOnConstant(Value *From, Value *ToV,
}
Instruction *ConstantExpr::getAsInstruction() {
- SmallVector<Value*,4> ValueOperands;
- for (op_iterator I = op_begin(), E = op_end(); I != E; ++I)
- ValueOperands.push_back(cast<Value>(I));
-
+ SmallVector<Value *, 4> ValueOperands(op_begin(), op_end());
ArrayRef<Value*> Ops(ValueOperands);
switch (getOpcode()) {
@@ -2953,12 +3021,14 @@ Instruction *ConstantExpr::getAsInstruction() {
case Instruction::ShuffleVector:
return new ShuffleVectorInst(Ops[0], Ops[1], Ops[2]);
- case Instruction::GetElementPtr:
- if (cast<GEPOperator>(this)->isInBounds())
- return GetElementPtrInst::CreateInBounds(Ops[0], Ops.slice(1));
- else
- return GetElementPtrInst::Create(Ops[0], Ops.slice(1));
-
+ case Instruction::GetElementPtr: {
+ const auto *GO = cast<GEPOperator>(this);
+ if (GO->isInBounds())
+ return GetElementPtrInst::CreateInBounds(GO->getSourceElementType(),
+ Ops[0], Ops.slice(1));
+ return GetElementPtrInst::Create(GO->getSourceElementType(), Ops[0],
+ Ops.slice(1));
+ }
case Instruction::ICmp:
case Instruction::FCmp:
return CmpInst::Create((Instruction::OtherOps)getOpcode(),
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