#include "llvm/Support/GetElementPtrTypeIterator.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/SmallVector.h"
+#include "llvm/ADT/STLExtras.h"
#include <algorithm>
-#include <map>
+#include <cstdarg>
using namespace llvm;
//===----------------------------------------------------------------------===//
if (const IntegerType *ITy = dyn_cast<IntegerType>(Ty))
return ConstantInt::get(Ty->getContext(),
APInt::getAllOnesValue(ITy->getBitWidth()));
-
- std::vector<Constant*> Elts;
+
+ if (Ty->isFloatingPointTy()) {
+ APFloat FL = APFloat::getAllOnesValue(Ty->getPrimitiveSizeInBits(),
+ !Ty->isPPC_FP128Ty());
+ return ConstantFP::get(Ty->getContext(), FL);
+ }
+
+ SmallVector<Constant*, 16> Elts;
const VectorType *VTy = cast<VectorType>(Ty);
Elts.resize(VTy->getNumElements(), getAllOnesValue(VTy->getElementType()));
assert(Elts[0] && "Not a vector integer type!");
}
+/// removeDeadUsersOfConstant - If the specified constantexpr is dead, remove
+/// it. This involves recursively eliminating any dead users of the
+/// constantexpr.
+static bool removeDeadUsersOfConstant(const Constant *C) {
+ if (isa<GlobalValue>(C)) return false; // Cannot remove this
+
+ while (!C->use_empty()) {
+ const Constant *User = dyn_cast<Constant>(C->use_back());
+ if (!User) return false; // Non-constant usage;
+ if (!removeDeadUsersOfConstant(User))
+ return false; // Constant wasn't dead
+ }
+
+ const_cast<Constant*>(C)->destroyConstant();
+ return true;
+}
+
+
+/// removeDeadConstantUsers - If there are any dead constant users dangling
+/// off of this constant, remove them. This method is useful for clients
+/// that want to check to see if a global is unused, but don't want to deal
+/// with potentially dead constants hanging off of the globals.
+void Constant::removeDeadConstantUsers() const {
+ Value::const_use_iterator I = use_begin(), E = use_end();
+ Value::const_use_iterator LastNonDeadUser = E;
+ while (I != E) {
+ const Constant *User = dyn_cast<Constant>(*I);
+ if (User == 0) {
+ LastNonDeadUser = I;
+ ++I;
+ continue;
+ }
+
+ if (!removeDeadUsersOfConstant(User)) {
+ // If the constant wasn't dead, remember that this was the last live use
+ // and move on to the next constant.
+ LastNonDeadUser = I;
+ ++I;
+ continue;
+ }
+
+ // If the constant was dead, then the iterator is invalidated.
+ if (LastNonDeadUser == E) {
+ I = use_begin();
+ if (I == E) break;
+ } else {
+ I = LastNonDeadUser;
+ ++I;
+ }
+ }
+}
+
+
//===----------------------------------------------------------------------===//
// ConstantInt
assert(V.getBitWidth() == Ty->getBitWidth() && "Invalid constant for type");
}
-ConstantInt* ConstantInt::getTrue(LLVMContext &Context) {
+ConstantInt *ConstantInt::getTrue(LLVMContext &Context) {
LLVMContextImpl *pImpl = Context.pImpl;
if (!pImpl->TheTrueVal)
pImpl->TheTrueVal = ConstantInt::get(Type::getInt1Ty(Context), 1);
return pImpl->TheTrueVal;
}
-ConstantInt* ConstantInt::getFalse(LLVMContext &Context) {
+ConstantInt *ConstantInt::getFalse(LLVMContext &Context) {
LLVMContextImpl *pImpl = Context.pImpl;
if (!pImpl->TheFalseVal)
pImpl->TheFalseVal = ConstantInt::get(Type::getInt1Ty(Context), 0);
return pImpl->TheFalseVal;
}
+Constant *ConstantInt::getTrue(const Type *Ty) {
+ const VectorType *VTy = dyn_cast<VectorType>(Ty);
+ if (!VTy) {
+ assert(Ty->isIntegerTy(1) && "True must be i1 or vector of i1.");
+ return ConstantInt::getTrue(Ty->getContext());
+ }
+ assert(VTy->getElementType()->isIntegerTy(1) &&
+ "True must be vector of i1 or i1.");
+ SmallVector<Constant*, 16> Splat(VTy->getNumElements(),
+ ConstantInt::getTrue(Ty->getContext()));
+ return ConstantVector::get(Splat);
+}
+
+Constant *ConstantInt::getFalse(const Type *Ty) {
+ const VectorType *VTy = dyn_cast<VectorType>(Ty);
+ if (!VTy) {
+ assert(Ty->isIntegerTy(1) && "False must be i1 or vector of i1.");
+ return ConstantInt::getFalse(Ty->getContext());
+ }
+ assert(VTy->getElementType()->isIntegerTy(1) &&
+ "False must be vector of i1 or i1.");
+ SmallVector<Constant*, 16> Splat(VTy->getNumElements(),
+ ConstantInt::getFalse(Ty->getContext()));
+ return ConstantVector::get(Splat);
+}
+
// Get a ConstantInt from an APInt. Note that the value stored in the DenseMap
// as the key, is a DenseMapAPIntKeyInfo::KeyTy which has provided the
// operator== and operator!= to ensure that the DenseMap doesn't attempt to
// compare APInt's of different widths, which would violate an APInt class
// invariant which generates an assertion.
-ConstantInt *ConstantInt::get(LLVMContext &Context, const APInt& V) {
+ConstantInt *ConstantInt::get(LLVMContext &Context, const APInt &V) {
// Get the corresponding integer type for the bit width of the value.
const IntegerType *ITy = IntegerType::get(Context, V.getBitWidth());
// get an existing value or the insertion position
return Slot;
}
-Constant *ConstantInt::get(const Type* Ty, uint64_t V, bool isSigned) {
- Constant *C = get(cast<IntegerType>(Ty->getScalarType()),
- V, isSigned);
+Constant *ConstantInt::get(const Type *Ty, uint64_t V, bool isSigned) {
+ Constant *C = get(cast<IntegerType>(Ty->getScalarType()), V, isSigned);
// For vectors, broadcast the value.
if (const VectorType *VTy = dyn_cast<VectorType>(Ty))
- return ConstantVector::get(
- std::vector<Constant *>(VTy->getNumElements(), C));
+ return ConstantVector::get(SmallVector<Constant*,
+ 16>(VTy->getNumElements(), C));
return C;
}
// For vectors, broadcast the value.
if (const VectorType *VTy = dyn_cast<VectorType>(Ty))
return ConstantVector::get(
- std::vector<Constant *>(VTy->getNumElements(), C));
+ SmallVector<Constant *, 16>(VTy->getNumElements(), C));
return C;
}
// For vectors, broadcast the value.
if (const VectorType *VTy = dyn_cast<VectorType>(Ty))
return ConstantVector::get(
- std::vector<Constant *>(VTy->getNumElements(), C));
+ SmallVector<Constant *, 16>(VTy->getNumElements(), C));
return C;
}
// For vectors, broadcast the value.
if (const VectorType *VTy = dyn_cast<VectorType>(Ty))
return ConstantVector::get(
- std::vector<Constant *>(VTy->getNumElements(), C));
+ SmallVector<Constant *, 16>(VTy->getNumElements(), C));
return C;
}
Constant *ConstantFP::getZeroValueForNegation(const Type* Ty) {
if (const VectorType *PTy = dyn_cast<VectorType>(Ty))
if (PTy->getElementType()->isFloatingPointTy()) {
- std::vector<Constant*> zeros(PTy->getNumElements(),
+ SmallVector<Constant*, 16> zeros(PTy->getNumElements(),
getNegativeZero(PTy->getElementType()));
- return ConstantVector::get(PTy, zeros);
+ return ConstantVector::get(zeros);
}
if (Ty->isFloatingPointTy())
}
}
-Constant *ConstantArray::get(const ArrayType *Ty,
- const std::vector<Constant*> &V) {
+Constant *ConstantArray::get(const ArrayType *Ty, ArrayRef<Constant*> V) {
for (unsigned i = 0, e = V.size(); i != e; ++i) {
assert(V[i]->getType() == Ty->getElementType() &&
"Wrong type in array element initializer");
return ConstantAggregateZero::get(Ty);
}
-
-Constant *ConstantArray::get(const ArrayType* T, Constant *const* Vals,
- unsigned NumVals) {
- // FIXME: make this the primary ctor method.
- return get(T, std::vector<Constant*>(Vals, Vals+NumVals));
-}
-
/// ConstantArray::get(const string&) - Return an array that is initialized to
/// contain the specified string. If length is zero then a null terminator is
/// added to the specified string so that it may be used in a natural way.
return get(ATy, ElementVals);
}
+/// getTypeForElements - Return an anonymous struct type to use for a constant
+/// with the specified set of elements. The list must not be empty.
+StructType *ConstantStruct::getTypeForElements(LLVMContext &Context,
+ ArrayRef<Constant*> V,
+ bool Packed) {
+ SmallVector<const Type*, 16> EltTypes;
+ for (unsigned i = 0, e = V.size(); i != e; ++i)
+ EltTypes.push_back(V[i]->getType());
+
+ return StructType::get(Context, EltTypes, Packed);
+}
+
+
+StructType *ConstantStruct::getTypeForElements(ArrayRef<Constant*> V,
+ bool Packed) {
+ assert(!V.empty() &&
+ "ConstantStruct::getTypeForElements cannot be called on empty list");
+ return getTypeForElements(V[0]->getContext(), V, Packed);
+}
ConstantStruct::ConstantStruct(const StructType *T,
: Constant(T, ConstantStructVal,
OperandTraits<ConstantStruct>::op_end(this) - V.size(),
V.size()) {
- assert(V.size() == T->getNumElements() &&
+ assert((T->isOpaque() || V.size() == T->getNumElements()) &&
"Invalid initializer vector for constant structure");
Use *OL = OperandList;
for (std::vector<Constant*>::const_iterator I = V.begin(), E = V.end();
I != E; ++I, ++OL) {
Constant *C = *I;
- assert(C->getType() == T->getElementType(I-V.begin()) &&
+ assert((T->isOpaque() || C->getType() == T->getElementType(I-V.begin())) &&
"Initializer for struct element doesn't match struct element type!");
*OL = C;
}
}
// ConstantStruct accessors.
-Constant *ConstantStruct::get(const StructType* T,
- const std::vector<Constant*>& V) {
- LLVMContextImpl* pImpl = T->getContext().pImpl;
-
- // Create a ConstantAggregateZero value if all elements are zeros...
+Constant *ConstantStruct::get(const StructType *ST, ArrayRef<Constant*> V) {
+ // Create a ConstantAggregateZero value if all elements are zeros.
for (unsigned i = 0, e = V.size(); i != e; ++i)
if (!V[i]->isNullValue())
- return pImpl->StructConstants.getOrCreate(T, V);
+ return ST->getContext().pImpl->StructConstants.getOrCreate(ST, V);
- return ConstantAggregateZero::get(T);
+ assert((ST->isOpaque() || ST->getNumElements() == V.size()) &&
+ "Incorrect # elements specified to ConstantStruct::get");
+ return ConstantAggregateZero::get(ST);
}
-Constant *ConstantStruct::get(LLVMContext &Context,
- const std::vector<Constant*>& V, bool packed) {
- std::vector<const Type*> StructEls;
- StructEls.reserve(V.size());
- for (unsigned i = 0, e = V.size(); i != e; ++i)
- StructEls.push_back(V[i]->getType());
- return get(StructType::get(Context, StructEls, packed), V);
-}
-
-Constant *ConstantStruct::get(LLVMContext &Context,
- Constant *const *Vals, unsigned NumVals,
- bool Packed) {
- // FIXME: make this the primary ctor method.
- return get(Context, std::vector<Constant*>(Vals, Vals+NumVals), Packed);
+Constant* ConstantStruct::get(const StructType *T, ...) {
+ va_list ap;
+ SmallVector<Constant*, 8> Values;
+ va_start(ap, T);
+ while (Constant *Val = va_arg(ap, llvm::Constant*))
+ Values.push_back(Val);
+ va_end(ap);
+ return get(T, Values);
}
ConstantVector::ConstantVector(const VectorType *T,
}
// ConstantVector accessors.
-Constant *ConstantVector::get(const VectorType* T,
- const std::vector<Constant*>& V) {
+Constant *ConstantVector::get(ArrayRef<Constant*> V) {
assert(!V.empty() && "Vectors can't be empty");
- LLVMContext &Context = T->getContext();
- LLVMContextImpl *pImpl = Context.pImpl;
+ const VectorType *T = VectorType::get(V.front()->getType(), V.size());
+ LLVMContextImpl *pImpl = T->getContext().pImpl;
- // If this is an all-undef or alll-zero vector, return a
+ // If this is an all-undef or all-zero vector, return a
// ConstantAggregateZero or UndefValue.
Constant *C = V[0];
bool isZero = C->isNullValue();
return pImpl->VectorConstants.getOrCreate(T, V);
}
-Constant *ConstantVector::get(const std::vector<Constant*>& V) {
- assert(!V.empty() && "Cannot infer type if V is empty");
- return get(VectorType::get(V.front()->getType(),V.size()), V);
-}
-
-Constant *ConstantVector::get(Constant *const* Vals, unsigned NumVals) {
- // FIXME: make this the primary ctor method.
- return get(std::vector<Constant*>(Vals, Vals+NumVals));
-}
-
-Constant *ConstantExpr::getNSWNeg(Constant *C) {
- assert(C->getType()->isIntOrIntVectorTy() &&
- "Cannot NEG a nonintegral value!");
- return getNSWSub(ConstantFP::getZeroValueForNegation(C->getType()), C);
-}
-
-Constant *ConstantExpr::getNUWNeg(Constant *C) {
- assert(C->getType()->isIntOrIntVectorTy() &&
- "Cannot NEG a nonintegral value!");
- return getNUWSub(ConstantFP::getZeroValueForNegation(C->getType()), C);
-}
-
-Constant *ConstantExpr::getNSWAdd(Constant *C1, Constant *C2) {
- return getTy(C1->getType(), Instruction::Add, C1, C2,
- OverflowingBinaryOperator::NoSignedWrap);
-}
-
-Constant *ConstantExpr::getNUWAdd(Constant *C1, Constant *C2) {
- return getTy(C1->getType(), Instruction::Add, C1, C2,
- OverflowingBinaryOperator::NoUnsignedWrap);
-}
-
-Constant *ConstantExpr::getNSWSub(Constant *C1, Constant *C2) {
- return getTy(C1->getType(), Instruction::Sub, C1, C2,
- OverflowingBinaryOperator::NoSignedWrap);
-}
-
-Constant *ConstantExpr::getNUWSub(Constant *C1, Constant *C2) {
- return getTy(C1->getType(), Instruction::Sub, C1, C2,
- OverflowingBinaryOperator::NoUnsignedWrap);
-}
-
-Constant *ConstantExpr::getNSWMul(Constant *C1, Constant *C2) {
- return getTy(C1->getType(), Instruction::Mul, C1, C2,
- OverflowingBinaryOperator::NoSignedWrap);
-}
-
-Constant *ConstantExpr::getNUWMul(Constant *C1, Constant *C2) {
- return getTy(C1->getType(), Instruction::Mul, C1, C2,
- OverflowingBinaryOperator::NoUnsignedWrap);
-}
-
-Constant *ConstantExpr::getNSWShl(Constant *C1, Constant *C2) {
- return getTy(C1->getType(), Instruction::Shl, C1, C2,
- OverflowingBinaryOperator::NoSignedWrap);
-}
-
-Constant *ConstantExpr::getNUWShl(Constant *C1, Constant *C2) {
- return getTy(C1->getType(), Instruction::Shl, C1, C2,
- OverflowingBinaryOperator::NoUnsignedWrap);
-}
-
-Constant *ConstantExpr::getExactSDiv(Constant *C1, Constant *C2) {
- return getTy(C1->getType(), Instruction::SDiv, C1, C2,
- PossiblyExactOperator::IsExact);
-}
-
-Constant *ConstantExpr::getExactUDiv(Constant *C1, Constant *C2) {
- return getTy(C1->getType(), Instruction::UDiv, C1, C2,
- PossiblyExactOperator::IsExact);
-}
-
-Constant *ConstantExpr::getExactAShr(Constant *C1, Constant *C2) {
- return getTy(C1->getType(), Instruction::AShr, C1, C2,
- PossiblyExactOperator::IsExact);
-}
-
-Constant *ConstantExpr::getExactLShr(Constant *C1, Constant *C2) {
- return getTy(C1->getType(), Instruction::LShr, C1, C2,
- PossiblyExactOperator::IsExact);
-}
-
-
// Utility function for determining if a ConstantExpr is a CastOp or not. This
// can't be inline because we don't want to #include Instruction.h into
// Constant.h
getOpcode() == Instruction::InsertValue;
}
-const SmallVector<unsigned, 4> &ConstantExpr::getIndices() const {
+ArrayRef<unsigned> ConstantExpr::getIndices() const {
if (const ExtractValueConstantExpr *EVCE =
dyn_cast<ExtractValueConstantExpr>(this))
return EVCE->Indices;
}
/// getWithOperands - This returns the current constant expression with the
-/// operands replaced with the specified values. The specified operands must
-/// match count and type with the existing ones.
+/// operands replaced with the specified values. The specified array must
+/// have the same number of operands as our current one.
Constant *ConstantExpr::
-getWithOperands(Constant *const *Ops, unsigned NumOps) const {
- assert(NumOps == getNumOperands() && "Operand count mismatch!");
- bool AnyChange = false;
- for (unsigned i = 0; i != NumOps; ++i) {
- assert(Ops[i]->getType() == getOperand(i)->getType() &&
- "Operand type mismatch!");
+getWithOperands(ArrayRef<Constant*> Ops, const Type *Ty) 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.
return const_cast<ConstantExpr*>(this);
case Instruction::PtrToInt:
case Instruction::IntToPtr:
case Instruction::BitCast:
- return ConstantExpr::getCast(getOpcode(), Ops[0], getType());
+ return ConstantExpr::getCast(getOpcode(), Ops[0], Ty);
case Instruction::Select:
return ConstantExpr::getSelect(Ops[0], Ops[1], Ops[2]);
case Instruction::InsertElement:
return ConstantExpr::getShuffleVector(Ops[0], Ops[1], Ops[2]);
case Instruction::GetElementPtr:
return cast<GEPOperator>(this)->isInBounds() ?
- ConstantExpr::getInBoundsGetElementPtr(Ops[0], &Ops[1], NumOps-1) :
- ConstantExpr::getGetElementPtr(Ops[0], &Ops[1], NumOps-1);
+ ConstantExpr::getInBoundsGetElementPtr(Ops[0], &Ops[1], Ops.size()-1) :
+ ConstantExpr::getGetElementPtr(Ops[0], &Ops[1], Ops.size()-1);
case Instruction::ICmp:
case Instruction::FCmp:
return ConstantExpr::getCompare(getPredicate(), Ops[0], Ops[1]);
/// destroyConstant - Remove the constant from the constant table...
///
void ConstantAggregateZero::destroyConstant() {
- getRawType()->getContext().pImpl->AggZeroConstants.remove(this);
+ getType()->getContext().pImpl->AggZeroConstants.remove(this);
destroyConstantImpl();
}
/// destroyConstant - Remove the constant from the constant table...
///
void ConstantArray::destroyConstant() {
- getRawType()->getContext().pImpl->ArrayConstants.remove(this);
+ getType()->getContext().pImpl->ArrayConstants.remove(this);
destroyConstantImpl();
}
}
-/// getAsString - If the sub-element type of this array is i8
-/// then this method converts the array to an std::string and returns it.
-/// Otherwise, it asserts out.
+/// convertToString - Helper function for getAsString() and getAsCString().
+static std::string convertToString(const User *U, unsigned len)
+{
+ std::string Result;
+ Result.reserve(len);
+ for (unsigned i = 0; i != len; ++i)
+ Result.push_back((char)cast<ConstantInt>(U->getOperand(i))->getZExtValue());
+ return Result;
+}
+
+/// getAsString - If this array is isString(), then this method converts the
+/// array to an std::string and returns it. Otherwise, it asserts out.
///
std::string ConstantArray::getAsString() const {
assert(isString() && "Not a string!");
- std::string Result;
- Result.reserve(getNumOperands());
- for (unsigned i = 0, e = getNumOperands(); i != e; ++i)
- Result.push_back((char)cast<ConstantInt>(getOperand(i))->getZExtValue());
- return Result;
+ return convertToString(this, getNumOperands());
+}
+
+
+/// getAsCString - If this array is isCString(), then this method converts the
+/// array (without the trailing null byte) to an std::string and returns it.
+/// Otherwise, it asserts out.
+///
+std::string ConstantArray::getAsCString() const {
+ assert(isCString() && "Not a string!");
+ return convertToString(this, getNumOperands() - 1);
}
// destroyConstant - Remove the constant from the constant table...
//
void ConstantStruct::destroyConstant() {
- getRawType()->getContext().pImpl->StructConstants.remove(this);
+ getType()->getContext().pImpl->StructConstants.remove(this);
destroyConstantImpl();
}
// destroyConstant - Remove the constant from the constant table...
//
void ConstantVector::destroyConstant() {
- getRawType()->getContext().pImpl->VectorConstants.remove(this);
+ getType()->getContext().pImpl->VectorConstants.remove(this);
destroyConstantImpl();
}
// destroyConstant - Remove the constant from the constant table...
//
void ConstantPointerNull::destroyConstant() {
- getRawType()->getContext().pImpl->NullPtrConstants.remove(this);
+ getType()->getContext().pImpl->NullPtrConstants.remove(this);
destroyConstantImpl();
}
// destroyConstant - Remove the constant from the constant table.
//
void UndefValue::destroyConstant() {
- getRawType()->getContext().pImpl->UndefValueConstants.remove(this);
+ getType()->getContext().pImpl->UndefValueConstants.remove(this);
destroyConstantImpl();
}
// destroyConstant - Remove the constant from the constant table.
//
void BlockAddress::destroyConstant() {
- getFunction()->getRawType()->getContext().pImpl
+ getFunction()->getType()->getContext().pImpl
->BlockAddresses.erase(std::make_pair(getFunction(), getBasicBlock()));
getBasicBlock()->AdjustBlockAddressRefCount(-1);
destroyConstantImpl();
Constant *ConstantExpr::getAlignOf(const Type* Ty) {
// alignof is implemented as: (i64) gep ({i1,Ty}*)null, 0, 1
// Note that a non-inbounds gep is used, as null isn't within any object.
- const Type *AligningTy = StructType::get(Ty->getContext(),
- Type::getInt1Ty(Ty->getContext()), Ty, NULL);
+ const Type *AligningTy =
+ StructType::get(Type::getInt1Ty(Ty->getContext()), Ty, NULL);
Constant *NullPtr = Constant::getNullValue(AligningTy->getPointerTo());
Constant *Zero = ConstantInt::get(Type::getInt64Ty(Ty->getContext()), 0);
Constant *One = ConstantInt::get(Type::getInt32Ty(Ty->getContext()), 1);
template<typename IndexTy>
Constant *ConstantExpr::getGetElementPtrTy(const Type *ReqTy, Constant *C,
IndexTy const *Idxs,
- unsigned NumIdx) {
- assert(GetElementPtrInst::getIndexedType(C->getType(), Idxs,
- Idxs+NumIdx) ==
- cast<PointerType>(ReqTy)->getElementType() &&
- "GEP indices invalid!");
-
- if (Constant *FC = ConstantFoldGetElementPtr(C, /*inBounds=*/false,
- Idxs, NumIdx))
- return FC; // Fold a few common cases...
-
- assert(C->getType()->isPointerTy() &&
- "Non-pointer type for constant GetElementPtr expression");
- // Look up the constant in the table first to ensure uniqueness
- std::vector<Constant*> ArgVec;
- ArgVec.reserve(NumIdx+1);
- ArgVec.push_back(C);
- for (unsigned i = 0; i != NumIdx; ++i)
- ArgVec.push_back(cast<Constant>(Idxs[i]));
- const ExprMapKeyType Key(Instruction::GetElementPtr, ArgVec);
-
- LLVMContextImpl *pImpl = ReqTy->getContext().pImpl;
- return pImpl->ExprConstants.getOrCreate(ReqTy, Key);
-}
-
-template<typename IndexTy>
-Constant *ConstantExpr::getInBoundsGetElementPtrTy(const Type *ReqTy,
- Constant *C,
- IndexTy const *Idxs,
- unsigned NumIdx) {
+ unsigned NumIdx, bool InBounds) {
assert(GetElementPtrInst::getIndexedType(C->getType(), Idxs,
Idxs+NumIdx) ==
cast<PointerType>(ReqTy)->getElementType() &&
"GEP indices invalid!");
- if (Constant *FC = ConstantFoldGetElementPtr(C, /*inBounds=*/true,
- Idxs, NumIdx))
- return FC; // Fold a few common cases...
+ if (Constant *FC = ConstantFoldGetElementPtr(C, InBounds, Idxs, NumIdx))
+ return FC; // Fold a few common cases.
assert(C->getType()->isPointerTy() &&
"Non-pointer type for constant GetElementPtr expression");
for (unsigned i = 0; i != NumIdx; ++i)
ArgVec.push_back(cast<Constant>(Idxs[i]));
const ExprMapKeyType Key(Instruction::GetElementPtr, ArgVec, 0,
- GEPOperator::IsInBounds);
+ InBounds ? GEPOperator::IsInBounds : 0);
LLVMContextImpl *pImpl = ReqTy->getContext().pImpl;
return pImpl->ExprConstants.getOrCreate(ReqTy, Key);
template<typename IndexTy>
Constant *ConstantExpr::getGetElementPtrImpl(Constant *C, IndexTy const *Idxs,
- unsigned NumIdx) {
- // Get the result type of the getelementptr!
- const Type *Ty =
- GetElementPtrInst::getIndexedType(C->getType(), Idxs, Idxs+NumIdx);
- assert(Ty && "GEP indices invalid!");
- unsigned As = cast<PointerType>(C->getType())->getAddressSpace();
- return getGetElementPtrTy(PointerType::get(Ty, As), C, Idxs, NumIdx);
-}
-
-template<typename IndexTy>
-Constant *ConstantExpr::getInBoundsGetElementPtrImpl(Constant *C,
- IndexTy const *Idxs,
- unsigned NumIdx) {
+ unsigned NumIdx, bool InBounds) {
// Get the result type of the getelementptr!
const Type *Ty =
GetElementPtrInst::getIndexedType(C->getType(), Idxs, Idxs+NumIdx);
assert(Ty && "GEP indices invalid!");
unsigned As = cast<PointerType>(C->getType())->getAddressSpace();
- return getInBoundsGetElementPtrTy(PointerType::get(Ty, As), C, Idxs, NumIdx);
+ return getGetElementPtrTy(PointerType::get(Ty, As), C, Idxs, NumIdx,InBounds);
}
Constant *ConstantExpr::getGetElementPtr(Constant *C, Value* const *Idxs,
- unsigned NumIdx) {
- return getGetElementPtrImpl(C, Idxs, NumIdx);
+ unsigned NumIdx, bool InBounds) {
+ return getGetElementPtrImpl(C, Idxs, NumIdx, InBounds);
}
Constant *ConstantExpr::getGetElementPtr(Constant *C, Constant *const *Idxs,
- unsigned NumIdx) {
- return getGetElementPtrImpl(C, Idxs, NumIdx);
-}
-
-Constant *ConstantExpr::getInBoundsGetElementPtr(Constant *C,
- Value* const *Idxs,
- unsigned NumIdx) {
- return getInBoundsGetElementPtrImpl(C, Idxs, NumIdx);
-}
-
-Constant *ConstantExpr::getInBoundsGetElementPtr(Constant *C,
- Constant *const *Idxs,
- unsigned NumIdx) {
- return getInBoundsGetElementPtrImpl(C, Idxs, NumIdx);
+ unsigned NumIdx, bool InBounds) {
+ return getGetElementPtrImpl(C, Idxs, NumIdx, InBounds);
}
Constant *
return getExtractValueTy(ReqTy, Agg, IdxList, NumIdx);
}
-Constant *ConstantExpr::getNeg(Constant *C) {
+Constant *ConstantExpr::getNeg(Constant *C, bool HasNUW, bool HasNSW) {
assert(C->getType()->isIntOrIntVectorTy() &&
"Cannot NEG a nonintegral value!");
- return get(Instruction::Sub,
- ConstantFP::getZeroValueForNegation(C->getType()),
- C);
+ return getSub(ConstantFP::getZeroValueForNegation(C->getType()),
+ C, HasNUW, HasNSW);
}
Constant *ConstantExpr::getFNeg(Constant *C) {
assert(C->getType()->isFPOrFPVectorTy() &&
"Cannot FNEG a non-floating-point value!");
- return get(Instruction::FSub,
- ConstantFP::getZeroValueForNegation(C->getType()),
- C);
+ return getFSub(ConstantFP::getZeroValueForNegation(C->getType()), C);
}
Constant *ConstantExpr::getNot(Constant *C) {
return get(Instruction::Xor, C, Constant::getAllOnesValue(C->getType()));
}
-Constant *ConstantExpr::getAdd(Constant *C1, Constant *C2) {
- return get(Instruction::Add, C1, C2);
+Constant *ConstantExpr::getAdd(Constant *C1, Constant *C2,
+ bool HasNUW, bool HasNSW) {
+ unsigned Flags = (HasNUW ? OverflowingBinaryOperator::NoUnsignedWrap : 0) |
+ (HasNSW ? OverflowingBinaryOperator::NoSignedWrap : 0);
+ return get(Instruction::Add, C1, C2, Flags);
}
Constant *ConstantExpr::getFAdd(Constant *C1, Constant *C2) {
return get(Instruction::FAdd, C1, C2);
}
-Constant *ConstantExpr::getSub(Constant *C1, Constant *C2) {
- return get(Instruction::Sub, C1, C2);
+Constant *ConstantExpr::getSub(Constant *C1, Constant *C2,
+ bool HasNUW, bool HasNSW) {
+ unsigned Flags = (HasNUW ? OverflowingBinaryOperator::NoUnsignedWrap : 0) |
+ (HasNSW ? OverflowingBinaryOperator::NoSignedWrap : 0);
+ return get(Instruction::Sub, C1, C2, Flags);
}
Constant *ConstantExpr::getFSub(Constant *C1, Constant *C2) {
return get(Instruction::FSub, C1, C2);
}
-Constant *ConstantExpr::getMul(Constant *C1, Constant *C2) {
- return get(Instruction::Mul, C1, C2);
+Constant *ConstantExpr::getMul(Constant *C1, Constant *C2,
+ bool HasNUW, bool HasNSW) {
+ unsigned Flags = (HasNUW ? OverflowingBinaryOperator::NoUnsignedWrap : 0) |
+ (HasNSW ? OverflowingBinaryOperator::NoSignedWrap : 0);
+ return get(Instruction::Mul, C1, C2, Flags);
}
Constant *ConstantExpr::getFMul(Constant *C1, Constant *C2) {
return get(Instruction::FMul, C1, C2);
}
-Constant *ConstantExpr::getUDiv(Constant *C1, Constant *C2) {
- return get(Instruction::UDiv, C1, C2);
+Constant *ConstantExpr::getUDiv(Constant *C1, Constant *C2, bool isExact) {
+ return get(Instruction::UDiv, C1, C2,
+ isExact ? PossiblyExactOperator::IsExact : 0);
}
-Constant *ConstantExpr::getSDiv(Constant *C1, Constant *C2) {
- return get(Instruction::SDiv, C1, C2);
+Constant *ConstantExpr::getSDiv(Constant *C1, Constant *C2, bool isExact) {
+ return get(Instruction::SDiv, C1, C2,
+ isExact ? PossiblyExactOperator::IsExact : 0);
}
Constant *ConstantExpr::getFDiv(Constant *C1, Constant *C2) {
return get(Instruction::Xor, C1, C2);
}
-Constant *ConstantExpr::getShl(Constant *C1, Constant *C2) {
- return get(Instruction::Shl, C1, C2);
+Constant *ConstantExpr::getShl(Constant *C1, Constant *C2,
+ bool HasNUW, bool HasNSW) {
+ unsigned Flags = (HasNUW ? OverflowingBinaryOperator::NoUnsignedWrap : 0) |
+ (HasNSW ? OverflowingBinaryOperator::NoSignedWrap : 0);
+ return get(Instruction::Shl, C1, C2, Flags);
}
-Constant *ConstantExpr::getLShr(Constant *C1, Constant *C2) {
- return get(Instruction::LShr, C1, C2);
+Constant *ConstantExpr::getLShr(Constant *C1, Constant *C2, bool isExact) {
+ return get(Instruction::LShr, C1, C2,
+ isExact ? PossiblyExactOperator::IsExact : 0);
}
-Constant *ConstantExpr::getAShr(Constant *C1, Constant *C2) {
- return get(Instruction::AShr, C1, C2);
+Constant *ConstantExpr::getAShr(Constant *C1, Constant *C2, bool isExact) {
+ return get(Instruction::AShr, C1, C2,
+ isExact ? PossiblyExactOperator::IsExact : 0);
}
// destroyConstant - Remove the constant from the constant table...
//
void ConstantExpr::destroyConstant() {
- getRawType()->getContext().pImpl->ExprConstants.remove(this);
+ getType()->getContext().pImpl->ExprConstants.remove(this);
destroyConstantImpl();
}
assert(isa<Constant>(To) && "Cannot make Constant refer to non-constant!");
Constant *ToC = cast<Constant>(To);
- LLVMContextImpl *pImpl = getRawType()->getContext().pImpl;
+ LLVMContextImpl *pImpl = getType()->getContext().pImpl;
std::pair<LLVMContextImpl::ArrayConstantsTy::MapKey, ConstantArray*> Lookup;
- Lookup.first.first = cast<ArrayType>(getRawType());
+ Lookup.first.first = cast<ArrayType>(getType());
Lookup.second = this;
std::vector<Constant*> &Values = Lookup.first.second;
Constant *Replacement = 0;
if (isAllZeros) {
- Replacement = ConstantAggregateZero::get(getRawType());
+ Replacement = ConstantAggregateZero::get(getType());
} else {
// Check to see if we have this array type already.
bool Exists;
assert(getOperand(OperandToUpdate) == From && "ReplaceAllUsesWith broken!");
std::pair<LLVMContextImpl::StructConstantsTy::MapKey, ConstantStruct*> Lookup;
- Lookup.first.first = cast<StructType>(getRawType());
+ Lookup.first.first = cast<StructType>(getType());
Lookup.second = this;
std::vector<Constant*> &Values = Lookup.first.second;
Values.reserve(getNumOperands()); // Build replacement struct.
}
Values[OperandToUpdate] = ToC;
- LLVMContextImpl *pImpl = getRawType()->getContext().pImpl;
+ LLVMContextImpl *pImpl = getContext().pImpl;
Constant *Replacement = 0;
if (isAllZeros) {
- Replacement = ConstantAggregateZero::get(getRawType());
+ Replacement = ConstantAggregateZero::get(getType());
} else {
// Check to see if we have this struct type already.
bool Exists;
Values.push_back(Val);
}
- Constant *Replacement = get(cast<VectorType>(getRawType()), Values);
+ Constant *Replacement = get(Values);
assert(Replacement != this && "I didn't contain From!");
// Everyone using this now uses the replacement.
Indices.push_back(Val);
}
Replacement = ConstantExpr::getGetElementPtr(Pointer,
- &Indices[0], Indices.size());
+ &Indices[0], Indices.size(),
+ cast<GEPOperator>(this)->isInBounds());
} else if (getOpcode() == Instruction::ExtractValue) {
Constant *Agg = getOperand(0);
if (Agg == From) Agg = To;
- const SmallVector<unsigned, 4> &Indices = getIndices();
+ ArrayRef<unsigned> Indices = getIndices();
Replacement = ConstantExpr::getExtractValue(Agg,
&Indices[0], Indices.size());
} else if (getOpcode() == Instruction::InsertValue) {
if (Agg == From) Agg = To;
if (Val == From) Val = To;
- const SmallVector<unsigned, 4> &Indices = getIndices();
+ ArrayRef<unsigned> Indices = getIndices();
Replacement = ConstantExpr::getInsertValue(Agg, Val,
&Indices[0], Indices.size());
} else if (isCast()) {
assert(getOperand(0) == From && "Cast only has one use!");
- Replacement = ConstantExpr::getCast(getOpcode(), To, getRawType());
+ Replacement = ConstantExpr::getCast(getOpcode(), To, getType());
} else if (getOpcode() == Instruction::Select) {
Constant *C1 = getOperand(0);
Constant *C2 = getOperand(1);
projects / oota-llvm.git / blobdiff