public:
Attribute() : pImpl(0) {}
+ //===--------------------------------------------------------------------===//
+ // Attribute Construction
+ //===--------------------------------------------------------------------===//
+
/// \brief Return a uniquified Attribute object.
static Attribute get(LLVMContext &Context, AttrKind Kind);
static Attribute get(LLVMContext &Context, AttrBuilder &B);
static Attribute getWithAlignment(LLVMContext &Context, uint64_t Align);
static Attribute getWithStackAlignment(LLVMContext &Context, uint64_t Align);
+ //===--------------------------------------------------------------------===//
+ // Attribute Accessors
+ //===--------------------------------------------------------------------===//
+
/// \brief Return true if the attribute is present.
bool hasAttribute(AttrKind Val) const;
/// alignment value.
unsigned getStackAlignment() const;
+ /// \brief The Attribute is converted to a string of equivalent mnemonic. This
+ /// is, presumably, for writing out the mnemonics for the assembly writer.
+ std::string getAsString() const;
+
/// \brief Equality and non-equality query methods.
bool operator==(AttrKind K) const;
bool operator!=(AttrKind K) const;
/// \brief Less-than operator. Useful for sorting the attributes list.
bool operator<(Attribute A) const;
- /// \brief The Attribute is converted to a string of equivalent mnemonic. This
- /// is, presumably, for writing out the mnemonics for the assembly writer.
- std::string getAsString() const;
-
void Profile(FoldingSetNodeID &ID) const {
ID.AddPointer(pImpl);
}
+ // FIXME: Remove this.
uint64_t Raw() const;
};
//===----------------------------------------------------------------------===//
-/// \class
-/// \brief Provide DenseMapInfo for Attribute::AttrKinds. This is used by
-/// AttrBuilder.
-template<> struct DenseMapInfo<Attribute::AttrKind> {
- static inline Attribute::AttrKind getEmptyKey() {
- return Attribute::AttrKindEmptyKey;
- }
- static inline Attribute::AttrKind getTombstoneKey() {
- return Attribute::AttrKindTombstoneKey;
- }
- static unsigned getHashValue(const Attribute::AttrKind &Val) {
- return Val * 37U;
- }
- static bool isEqual(const Attribute::AttrKind &LHS,
- const Attribute::AttrKind &RHS) {
- return LHS == RHS;
- }
-};
-
-//===----------------------------------------------------------------------===//
// AttributeSet Smart Pointer
//===----------------------------------------------------------------------===//
}
//===--------------------------------------------------------------------===//
- // Attribute List Construction and Mutation
+ // AttributeSet Construction and Mutation
//===--------------------------------------------------------------------===//
/// \brief Return an AttributeSet with the specified parameters in it.
AttributeSet Attrs) const;
//===--------------------------------------------------------------------===//
- // Attribute Set Accessors
+ // AttributeSet Accessors
//===--------------------------------------------------------------------===//
/// \brief The attributes for the specified index are returned.
/// \brief Return true if attribute exists at the given index.
bool hasAttributes(unsigned Index) const;
+ /// \brief Return true if the specified attribute is set for at least one
+ /// parameter or for the return value.
+ bool hasAttrSomewhere(Attribute::AttrKind Attr) const;
+
/// \brief Return the alignment for the specified function parameter.
unsigned getParamAlignment(unsigned Idx) const;
/// \brief Return the attributes at the index as a string.
std::string getAsString(unsigned Index) const;
- uint64_t Raw(unsigned Index) const;
-
- /// \brief Return true if the specified attribute is set for at least one
- /// parameter or for the return value.
- bool hasAttrSomewhere(Attribute::AttrKind Attr) const;
-
/// operator==/!= - Provide equality predicates.
bool operator==(const AttributeSet &RHS) const {
return pImpl == RHS.pImpl;
}
//===--------------------------------------------------------------------===//
- // Attribute List Introspection
+ // AttributeSet Introspection
//===--------------------------------------------------------------------===//
+ // FIXME: Remove this.
+ uint64_t Raw(unsigned Index) const;
+
/// \brief Return a raw pointer that uniquely identifies this attribute list.
void *getRawPointer() const {
return pImpl;
}
- // Attributes are stored as a dense set of slots, where there is one slot for
- // each argument that has an attribute. This allows walking over the dense
- // set instead of walking the sparse list of attributes.
-
/// \brief Return true if there are no attributes.
bool isEmpty() const {
return pImpl == 0;
//===----------------------------------------------------------------------===//
/// \class
+/// \brief Provide DenseMapInfo for Attribute::AttrKinds. This is used by
+/// AttrBuilder.
+template<> struct DenseMapInfo<Attribute::AttrKind> {
+ static inline Attribute::AttrKind getEmptyKey() {
+ return Attribute::AttrKindEmptyKey;
+ }
+ static inline Attribute::AttrKind getTombstoneKey() {
+ return Attribute::AttrKindTombstoneKey;
+ }
+ static unsigned getHashValue(const Attribute::AttrKind &Val) {
+ return Val * 37U;
+ }
+ static bool isEqual(const Attribute::AttrKind &LHS,
+ const Attribute::AttrKind &RHS) {
+ return LHS == RHS;
+ }
+};
+
+//===----------------------------------------------------------------------===//
+/// \class
/// \brief This class is used in conjunction with the Attribute::get method to
/// create an Attribute object. The object itself is uniquified. The Builder's
/// value, however, is not. So this can be used as a quick way to test for
typedef DenseSet<Attribute::AttrKind>::iterator iterator;
typedef DenseSet<Attribute::AttrKind>::const_iterator const_iterator;
- iterator begin() { return Attrs.begin(); }
- iterator end() { return Attrs.end(); }
-
+ iterator begin() { return Attrs.begin(); }
+ iterator end() { return Attrs.end(); }
const_iterator begin() const { return Attrs.begin(); }
const_iterator end() const { return Attrs.end(); }
- /// \brief Add the raw value to the internal representation.
- ///
- /// N.B. This should be used ONLY for decoding LLVM bitcode!
- AttrBuilder &addRawValue(uint64_t Val);
-
/// \brief Remove attributes that are used on functions only.
void removeFunctionOnlyAttrs() {
removeAttribute(Attribute::NoReturn)
.removeAttribute(Attribute::NoDuplicate);
}
- uint64_t Raw() const;
-
bool operator==(const AttrBuilder &B);
bool operator!=(const AttrBuilder &B) {
return !(*this == B);
}
+
+ // FIXME: Remove these.
+
+ /// \brief Add the raw value to the internal representation.
+ ///
+ /// N.B. This should be used ONLY for decoding LLVM bitcode!
+ AttrBuilder &addRawValue(uint64_t Val);
+
+ uint64_t Raw() const;
};
namespace AttributeFuncs {
// Otherwise, build a key to look up the existing attributes.
LLVMContextImpl *pImpl = Context.pImpl;
FoldingSetNodeID ID;
- ID.AddInteger(B.Raw());
+ ConstantInt *CI = ConstantInt::get(Type::getInt64Ty(Context), B.Raw());
+ ID.AddPointer(CI);
void *InsertPoint;
AttributeImpl *PA = pImpl->AttrsSet.FindNodeOrInsertPos(ID, InsertPoint);
if (!PA) {
// If we didn't find any existing attributes of the same shape then create a
// new one and insert it.
- PA = new AttributeImpl(Context, B.Raw());
+ PA = new AttributeImpl(Context, CI);
pImpl->AttrsSet.InsertNode(PA, InsertPoint);
}
return pImpl->getStackAlignment();
}
-bool Attribute::operator==(AttrKind K) const {
- return pImpl && *pImpl == K;
-}
-bool Attribute::operator!=(AttrKind K) const {
- return !(*this == K);
-}
-
-bool Attribute::operator<(Attribute A) const {
- if (!pImpl && !A.pImpl) return false;
- if (!pImpl) return true;
- if (!A.pImpl) return false;
- return *pImpl < *A.pImpl;
-}
-
-uint64_t Attribute::Raw() const {
- return pImpl ? pImpl->Raw() : 0;
-}
-
std::string Attribute::getAsString() const {
std::string Result;
if (hasAttribute(Attribute::ZExt))
return Result;
}
-//===----------------------------------------------------------------------===//
-// AttrBuilder Method Implementations
-//===----------------------------------------------------------------------===//
-
-AttrBuilder::AttrBuilder(AttributeSet AS, unsigned Idx)
- : Alignment(0), StackAlignment(0) {
- AttributeSetImpl *pImpl = AS.pImpl;
- if (!pImpl) return;
-
- AttrBuilder B;
-
- for (unsigned I = 0, E = pImpl->getNumAttributes(); I != E; ++I) {
- if (pImpl->getSlotIndex(I) != Idx) continue;
-
- for (AttributeSetNode::const_iterator II = pImpl->begin(I),
- IE = pImpl->end(I); II != IE; ++II)
- B.addAttributes(*II);
-
- break;
- }
-
- if (!B.hasAttributes()) return;
-
- uint64_t Mask = B.Raw();
-
- for (Attribute::AttrKind I = Attribute::None; I != Attribute::EndAttrKinds;
- I = Attribute::AttrKind(I + 1)) {
- if (uint64_t A = (Mask & AttributeImpl::getAttrMask(I))) {
- Attrs.insert(I);
-
- if (I == Attribute::Alignment)
- Alignment = 1ULL << ((A >> 16) - 1);
- else if (I == Attribute::StackAlignment)
- StackAlignment = 1ULL << ((A >> 26)-1);
- }
- }
-}
-
-void AttrBuilder::clear() {
- Attrs.clear();
- Alignment = StackAlignment = 0;
-}
-
-AttrBuilder &AttrBuilder::addAttribute(Attribute::AttrKind Val) {
- Attrs.insert(Val);
- return *this;
-}
-
-AttrBuilder &AttrBuilder::removeAttribute(Attribute::AttrKind Val) {
- Attrs.erase(Val);
- if (Val == Attribute::Alignment)
- Alignment = 0;
- else if (Val == Attribute::StackAlignment)
- StackAlignment = 0;
-
- return *this;
-}
-
-AttrBuilder &AttrBuilder::addAttributes(Attribute Attr) {
- uint64_t Mask = Attr.Raw();
-
- for (Attribute::AttrKind I = Attribute::None; I != Attribute::EndAttrKinds;
- I = Attribute::AttrKind(I + 1))
- if ((Mask & AttributeImpl::getAttrMask(I)) != 0)
- Attrs.insert(I);
-
- if (Attr.getAlignment())
- Alignment = Attr.getAlignment();
- if (Attr.getStackAlignment())
- StackAlignment = Attr.getStackAlignment();
- return *this;
-}
-
-AttrBuilder &AttrBuilder::removeAttributes(Attribute A) {
- uint64_t Mask = A.Raw();
-
- for (Attribute::AttrKind I = Attribute::None; I != Attribute::EndAttrKinds;
- I = Attribute::AttrKind(I + 1)) {
- if (Mask & AttributeImpl::getAttrMask(I)) {
- Attrs.erase(I);
-
- if (I == Attribute::Alignment)
- Alignment = 0;
- else if (I == Attribute::StackAlignment)
- StackAlignment = 0;
- }
- }
-
- return *this;
-}
-
-AttrBuilder &AttrBuilder::addAlignmentAttr(unsigned Align) {
- if (Align == 0) return *this;
-
- assert(isPowerOf2_32(Align) && "Alignment must be a power of two.");
- assert(Align <= 0x40000000 && "Alignment too large.");
-
- Attrs.insert(Attribute::Alignment);
- Alignment = Align;
- return *this;
-}
-
-AttrBuilder &AttrBuilder::addStackAlignmentAttr(unsigned Align) {
- // Default alignment, allow the target to define how to align it.
- if (Align == 0) return *this;
-
- assert(isPowerOf2_32(Align) && "Alignment must be a power of two.");
- assert(Align <= 0x100 && "Alignment too large.");
-
- Attrs.insert(Attribute::StackAlignment);
- StackAlignment = Align;
- return *this;
-}
-
-AttrBuilder &AttrBuilder::addRawValue(uint64_t Val) {
- for (Attribute::AttrKind I = Attribute::None; I != Attribute::EndAttrKinds;
- I = Attribute::AttrKind(I + 1)) {
- if (uint64_t A = (Val & AttributeImpl::getAttrMask(I))) {
- Attrs.insert(I);
-
- if (I == Attribute::Alignment)
- Alignment = 1ULL << ((A >> 16) - 1);
- else if (I == Attribute::StackAlignment)
- StackAlignment = 1ULL << ((A >> 26)-1);
- }
- }
-
- return *this;
-}
-
-bool AttrBuilder::contains(Attribute::AttrKind A) const {
- return Attrs.count(A);
-}
-
-bool AttrBuilder::hasAttributes() const {
- return !Attrs.empty();
-}
-
-bool AttrBuilder::hasAttributes(const Attribute &A) const {
- return Raw() & A.Raw();
+bool Attribute::operator==(AttrKind K) const {
+ return pImpl && *pImpl == K;
}
-
-bool AttrBuilder::hasAlignmentAttr() const {
- return Alignment != 0;
+bool Attribute::operator!=(AttrKind K) const {
+ return !(*this == K);
}
-uint64_t AttrBuilder::Raw() const {
- uint64_t Mask = 0;
-
- for (DenseSet<Attribute::AttrKind>::const_iterator I = Attrs.begin(),
- E = Attrs.end(); I != E; ++I) {
- Attribute::AttrKind Kind = *I;
-
- if (Kind == Attribute::Alignment)
- Mask |= (Log2_32(Alignment) + 1) << 16;
- else if (Kind == Attribute::StackAlignment)
- Mask |= (Log2_32(StackAlignment) + 1) << 26;
- else
- Mask |= AttributeImpl::getAttrMask(Kind);
- }
-
- return Mask;
+bool Attribute::operator<(Attribute A) const {
+ if (!pImpl && !A.pImpl) return false;
+ if (!pImpl) return true;
+ if (!A.pImpl) return false;
+ return *pImpl < *A.pImpl;
}
-bool AttrBuilder::operator==(const AttrBuilder &B) {
- SmallVector<Attribute::AttrKind, 8> This(Attrs.begin(), Attrs.end());
- SmallVector<Attribute::AttrKind, 8> That(B.Attrs.begin(), B.Attrs.end());
- return This == That;
+uint64_t Attribute::Raw() const {
+ return pImpl ? pImpl->Raw() : 0;
}
//===----------------------------------------------------------------------===//
// AttributeImpl Definition
//===----------------------------------------------------------------------===//
-AttributeImpl::AttributeImpl(LLVMContext &C, uint64_t data)
- : Context(C) {
- Data = ConstantInt::get(Type::getInt64Ty(C), data);
-}
AttributeImpl::AttributeImpl(LLVMContext &C, Attribute::AttrKind data)
: Context(C) {
Data = ConstantInt::get(Type::getInt64Ty(C), data);
Data = ConstantDataArray::getString(C, data);
}
+bool AttributeImpl::hasAttribute(Attribute::AttrKind A) const {
+ return (Raw() & getAttrMask(A)) != 0;
+}
+
+bool AttributeImpl::hasAttributes() const {
+ return Raw() != 0;
+}
+
+uint64_t AttributeImpl::getAlignment() const {
+ uint64_t Mask = Raw() & getAttrMask(Attribute::Alignment);
+ return 1ULL << ((Mask >> 16) - 1);
+}
+
+uint64_t AttributeImpl::getStackAlignment() const {
+ uint64_t Mask = Raw() & getAttrMask(Attribute::StackAlignment);
+ return 1ULL << ((Mask >> 26) - 1);
+}
+
bool AttributeImpl::operator==(Attribute::AttrKind Kind) const {
if (ConstantInt *CI = dyn_cast<ConstantInt>(Data))
return CI->getZExtValue() == Kind;
}
uint64_t AttributeImpl::getAttrMask(Attribute::AttrKind Val) {
+ // FIXME: Remove this.
switch (Val) {
case Attribute::EndAttrKinds:
case Attribute::AttrKindEmptyKey:
llvm_unreachable("Unsupported attribute type");
}
-bool AttributeImpl::hasAttribute(Attribute::AttrKind A) const {
- return (Raw() & getAttrMask(A)) != 0;
-}
-
-bool AttributeImpl::hasAttributes() const {
- return Raw() != 0;
-}
-
-uint64_t AttributeImpl::getAlignment() const {
- uint64_t Mask = Raw() & getAttrMask(Attribute::Alignment);
- return 1ULL << ((Mask >> 16) - 1);
-}
-
-uint64_t AttributeImpl::getStackAlignment() const {
- uint64_t Mask = Raw() & getAttrMask(Attribute::StackAlignment);
- return 1ULL << ((Mask >> 26) - 1);
-}
-
-void AttributeImpl::Profile(FoldingSetNodeID &ID, Constant *Data,
- ArrayRef<Constant*> Vals) {
- ID.AddInteger(cast<ConstantInt>(Data)->getZExtValue());
-#if 0
- // FIXME: Not yet supported.
- for (ArrayRef<Constant*>::iterator I = Vals.begin(), E = Vals.end();
- I != E; ++I)
- ID.AddPointer(*I);
-#endif
-}
-
//===----------------------------------------------------------------------===//
// AttributeSetNode Definition
//===----------------------------------------------------------------------===//
}
//===----------------------------------------------------------------------===//
-// AttributeSet Method Implementations
+// AttributeSet Construction and Mutation Methods
//===----------------------------------------------------------------------===//
-AttributeSet AttributeSet::getParamAttributes(unsigned Idx) const {
- // FIXME: Remove.
- return pImpl && hasAttributes(Idx) ?
- AttributeSet::get(pImpl->getContext(),
- ArrayRef<std::pair<unsigned, Attribute> >(
- std::make_pair(Idx, getAttributes(Idx)))) :
- AttributeSet();
-}
-
-AttributeSet AttributeSet::getRetAttributes() const {
- // FIXME: Remove.
- return pImpl && hasAttributes(ReturnIndex) ?
- AttributeSet::get(pImpl->getContext(),
- ArrayRef<std::pair<unsigned, Attribute> >(
- std::make_pair(ReturnIndex,
- getAttributes(ReturnIndex)))) :
- AttributeSet();
-}
-
-AttributeSet AttributeSet::getFnAttributes() const {
- // FIXME: Remove.
- return pImpl && hasAttributes(FunctionIndex) ?
- AttributeSet::get(pImpl->getContext(),
- ArrayRef<std::pair<unsigned, Attribute> >(
- std::make_pair(FunctionIndex,
- getAttributes(FunctionIndex)))) :
- AttributeSet();
-}
-
-AttributeSet AttributeSet::getImpl(LLVMContext &C,
- ArrayRef<std::pair<unsigned,
- AttributeSetNode*> > Attrs) {
- LLVMContextImpl *pImpl = C.pImpl;
- FoldingSetNodeID ID;
- AttributeSetImpl::Profile(ID, Attrs);
+AttributeSet AttributeSet::getImpl(LLVMContext &C,
+ ArrayRef<std::pair<unsigned,
+ AttributeSetNode*> > Attrs) {
+ LLVMContextImpl *pImpl = C.pImpl;
+ FoldingSetNodeID ID;
+ AttributeSetImpl::Profile(ID, Attrs);
void *InsertPoint;
AttributeSetImpl *PA = pImpl->AttrsLists.FindNodeOrInsertPos(ID, InsertPoint);
}
AttributeSet AttributeSet::get(LLVMContext &C, ArrayRef<AttributeSet> Attrs) {
+ if (Attrs.empty()) return AttributeSet();
+
SmallVector<std::pair<unsigned, AttributeSetNode*>, 8> AttrNodeVec;
for (unsigned I = 0, E = Attrs.size(); I != E; ++I) {
AttributeSet AS = Attrs[I];
AttrNodeVec.append(AS.pImpl->AttrNodes.begin(), AS.pImpl->AttrNodes.end());
}
- return get(C, AttrNodeVec);
-}
-
-/// \brief Return the number of slots used in this attribute list. This is the
-/// number of arguments that have an attribute set on them (including the
-/// function itself).
-unsigned AttributeSet::getNumSlots() const {
- return pImpl ? pImpl->getNumAttributes() : 0;
-}
-
-uint64_t AttributeSet::getSlotIndex(unsigned Slot) const {
- assert(pImpl && Slot < pImpl->getNumAttributes() &&
- "Slot # out of range!");
- return pImpl->getSlotIndex(Slot);
-}
-
-AttributeSet AttributeSet::getSlotAttributes(unsigned Slot) const {
- assert(pImpl && Slot < pImpl->getNumAttributes() &&
- "Slot # out of range!");
- return pImpl->getSlotAttributes(Slot);
-}
-
-bool AttributeSet::hasAttribute(unsigned Index, Attribute::AttrKind Kind) const{
- return getAttributes(Index).hasAttribute(Kind);
-}
-
-bool AttributeSet::hasAttributes(unsigned Index) const {
- return getAttributes(Index).hasAttributes();
-}
-
-std::string AttributeSet::getAsString(unsigned Index) const {
- return getAttributes(Index).getAsString();
-}
-
-unsigned AttributeSet::getParamAlignment(unsigned Idx) const {
- return getAttributes(Idx).getAlignment();
-}
-
-unsigned AttributeSet::getStackAlignment(unsigned Index) const {
- return getAttributes(Index).getStackAlignment();
-}
-
-uint64_t AttributeSet::Raw(unsigned Index) const {
- // FIXME: Remove this.
- return pImpl ? pImpl->Raw(Index) : 0;
-}
-
-/// \brief The attributes for the specified index are returned.
-///
-/// FIXME: This shouldn't return 'Attribute'.
-Attribute AttributeSet::getAttributes(unsigned Idx) const {
- if (pImpl == 0) return Attribute();
-
- // Loop through to find the attribute we want.
- for (unsigned I = 0, E = pImpl->getNumAttributes(); I != E; ++I) {
- if (pImpl->getSlotIndex(I) != Idx) continue;
-
- AttrBuilder B;
- for (AttributeSetImpl::const_iterator II = pImpl->begin(I),
- IE = pImpl->end(I); II != IE; ++II)
- B.addAttributes(*II);
- return Attribute::get(pImpl->getContext(), B);
- }
-
- return Attribute();
-}
-
-/// hasAttrSomewhere - Return true if the specified attribute is set for at
-/// least one parameter or for the return value.
-bool AttributeSet::hasAttrSomewhere(Attribute::AttrKind Attr) const {
- if (pImpl == 0) return false;
-
- for (unsigned I = 0, E = pImpl->getNumAttributes(); I != E; ++I)
- for (AttributeSetImpl::const_iterator II = pImpl->begin(I),
- IE = pImpl->end(I); II != IE; ++II)
- if (II->hasAttribute(Attr))
- return true;
-
- return false;
+ return getImpl(C, AttrNodeVec);
}
AttributeSet AttributeSet::addAttribute(LLVMContext &C, unsigned Idx,
return get(C, AttrSet);
}
+//===----------------------------------------------------------------------===//
+// AttributeSet Accessor Methods
+//===----------------------------------------------------------------------===//
+
+AttributeSet AttributeSet::getParamAttributes(unsigned Idx) const {
+ return pImpl && hasAttributes(Idx) ?
+ AttributeSet::get(pImpl->getContext(),
+ ArrayRef<std::pair<unsigned, Attribute> >(
+ std::make_pair(Idx, getAttributes(Idx)))) :
+ AttributeSet();
+}
+
+AttributeSet AttributeSet::getRetAttributes() const {
+ return pImpl && hasAttributes(ReturnIndex) ?
+ AttributeSet::get(pImpl->getContext(),
+ ArrayRef<std::pair<unsigned, Attribute> >(
+ std::make_pair(ReturnIndex,
+ getAttributes(ReturnIndex)))) :
+ AttributeSet();
+}
+
+AttributeSet AttributeSet::getFnAttributes() const {
+ return pImpl && hasAttributes(FunctionIndex) ?
+ AttributeSet::get(pImpl->getContext(),
+ ArrayRef<std::pair<unsigned, Attribute> >(
+ std::make_pair(FunctionIndex,
+ getAttributes(FunctionIndex)))) :
+ AttributeSet();
+}
+
+bool AttributeSet::hasAttribute(unsigned Index, Attribute::AttrKind Kind) const{
+ return getAttributes(Index).hasAttribute(Kind);
+}
+
+bool AttributeSet::hasAttributes(unsigned Index) const {
+ return getAttributes(Index).hasAttributes();
+}
+
+/// \brief Return true if the specified attribute is set for at least one
+/// parameter or for the return value.
+bool AttributeSet::hasAttrSomewhere(Attribute::AttrKind Attr) const {
+ if (pImpl == 0) return false;
+
+ for (unsigned I = 0, E = pImpl->getNumAttributes(); I != E; ++I)
+ for (AttributeSetImpl::const_iterator II = pImpl->begin(I),
+ IE = pImpl->end(I); II != IE; ++II)
+ if (II->hasAttribute(Attr))
+ return true;
+
+ return false;
+}
+
+unsigned AttributeSet::getParamAlignment(unsigned Idx) const {
+ return getAttributes(Idx).getAlignment();
+}
+
+unsigned AttributeSet::getStackAlignment(unsigned Index) const {
+ return getAttributes(Index).getStackAlignment();
+}
+
+std::string AttributeSet::getAsString(unsigned Index) const {
+ return getAttributes(Index).getAsString();
+}
+
+/// \brief The attributes for the specified index are returned.
+///
+/// FIXME: This shouldn't return 'Attribute'.
+Attribute AttributeSet::getAttributes(unsigned Idx) const {
+ if (pImpl == 0) return Attribute();
+
+ // Loop through to find the attribute we want.
+ for (unsigned I = 0, E = pImpl->getNumAttributes(); I != E; ++I) {
+ if (pImpl->getSlotIndex(I) != Idx) continue;
+
+ AttrBuilder B;
+ for (AttributeSetImpl::const_iterator II = pImpl->begin(I),
+ IE = pImpl->end(I); II != IE; ++II)
+ B.addAttributes(*II);
+ return Attribute::get(pImpl->getContext(), B);
+ }
+
+ return Attribute();
+}
+
+//===----------------------------------------------------------------------===//
+// AttributeSet Introspection Methods
+//===----------------------------------------------------------------------===//
+
+/// \brief Return the number of slots used in this attribute list. This is the
+/// number of arguments that have an attribute set on them (including the
+/// function itself).
+unsigned AttributeSet::getNumSlots() const {
+ return pImpl ? pImpl->getNumAttributes() : 0;
+}
+
+uint64_t AttributeSet::getSlotIndex(unsigned Slot) const {
+ assert(pImpl && Slot < pImpl->getNumAttributes() &&
+ "Slot # out of range!");
+ return pImpl->getSlotIndex(Slot);
+}
+
+AttributeSet AttributeSet::getSlotAttributes(unsigned Slot) const {
+ assert(pImpl && Slot < pImpl->getNumAttributes() &&
+ "Slot # out of range!");
+ return pImpl->getSlotAttributes(Slot);
+}
+
+uint64_t AttributeSet::Raw(unsigned Index) const {
+ // FIXME: Remove this.
+ return pImpl ? pImpl->Raw(Index) : 0;
+}
+
void AttributeSet::dump() const {
dbgs() << "PAL[\n";
+
for (unsigned i = 0, e = getNumSlots(); i < e; ++i) {
uint64_t Index = getSlotIndex(i);
dbgs() << " { ";
}
//===----------------------------------------------------------------------===//
+// AttrBuilder Method Implementations
+//===----------------------------------------------------------------------===//
+
+AttrBuilder::AttrBuilder(AttributeSet AS, unsigned Idx)
+ : Alignment(0), StackAlignment(0) {
+ AttributeSetImpl *pImpl = AS.pImpl;
+ if (!pImpl) return;
+
+ AttrBuilder B;
+
+ for (unsigned I = 0, E = pImpl->getNumAttributes(); I != E; ++I) {
+ if (pImpl->getSlotIndex(I) != Idx) continue;
+
+ for (AttributeSetNode::const_iterator II = pImpl->begin(I),
+ IE = pImpl->end(I); II != IE; ++II)
+ B.addAttributes(*II);
+
+ break;
+ }
+
+ if (!B.hasAttributes()) return;
+
+ uint64_t Mask = B.Raw();
+
+ for (Attribute::AttrKind I = Attribute::None; I != Attribute::EndAttrKinds;
+ I = Attribute::AttrKind(I + 1)) {
+ if (uint64_t A = (Mask & AttributeImpl::getAttrMask(I))) {
+ Attrs.insert(I);
+
+ if (I == Attribute::Alignment)
+ Alignment = 1ULL << ((A >> 16) - 1);
+ else if (I == Attribute::StackAlignment)
+ StackAlignment = 1ULL << ((A >> 26)-1);
+ }
+ }
+}
+
+void AttrBuilder::clear() {
+ Attrs.clear();
+ Alignment = StackAlignment = 0;
+}
+
+AttrBuilder &AttrBuilder::addAttribute(Attribute::AttrKind Val) {
+ Attrs.insert(Val);
+ return *this;
+}
+
+AttrBuilder &AttrBuilder::removeAttribute(Attribute::AttrKind Val) {
+ Attrs.erase(Val);
+ if (Val == Attribute::Alignment)
+ Alignment = 0;
+ else if (Val == Attribute::StackAlignment)
+ StackAlignment = 0;
+
+ return *this;
+}
+
+AttrBuilder &AttrBuilder::addAttributes(Attribute Attr) {
+ uint64_t Mask = Attr.Raw();
+
+ for (Attribute::AttrKind I = Attribute::None; I != Attribute::EndAttrKinds;
+ I = Attribute::AttrKind(I + 1))
+ if ((Mask & AttributeImpl::getAttrMask(I)) != 0)
+ Attrs.insert(I);
+
+ if (Attr.getAlignment())
+ Alignment = Attr.getAlignment();
+ if (Attr.getStackAlignment())
+ StackAlignment = Attr.getStackAlignment();
+ return *this;
+}
+
+AttrBuilder &AttrBuilder::removeAttributes(Attribute A) {
+ uint64_t Mask = A.Raw();
+
+ for (Attribute::AttrKind I = Attribute::None; I != Attribute::EndAttrKinds;
+ I = Attribute::AttrKind(I + 1)) {
+ if (Mask & AttributeImpl::getAttrMask(I)) {
+ Attrs.erase(I);
+
+ if (I == Attribute::Alignment)
+ Alignment = 0;
+ else if (I == Attribute::StackAlignment)
+ StackAlignment = 0;
+ }
+ }
+
+ return *this;
+}
+
+AttrBuilder &AttrBuilder::addAlignmentAttr(unsigned Align) {
+ if (Align == 0) return *this;
+
+ assert(isPowerOf2_32(Align) && "Alignment must be a power of two.");
+ assert(Align <= 0x40000000 && "Alignment too large.");
+
+ Attrs.insert(Attribute::Alignment);
+ Alignment = Align;
+ return *this;
+}
+
+AttrBuilder &AttrBuilder::addStackAlignmentAttr(unsigned Align) {
+ // Default alignment, allow the target to define how to align it.
+ if (Align == 0) return *this;
+
+ assert(isPowerOf2_32(Align) && "Alignment must be a power of two.");
+ assert(Align <= 0x100 && "Alignment too large.");
+
+ Attrs.insert(Attribute::StackAlignment);
+ StackAlignment = Align;
+ return *this;
+}
+
+bool AttrBuilder::contains(Attribute::AttrKind A) const {
+ return Attrs.count(A);
+}
+
+bool AttrBuilder::hasAttributes() const {
+ return !Attrs.empty();
+}
+
+bool AttrBuilder::hasAttributes(const Attribute &A) const {
+ return Raw() & A.Raw();
+}
+
+bool AttrBuilder::hasAlignmentAttr() const {
+ return Alignment != 0;
+}
+
+bool AttrBuilder::operator==(const AttrBuilder &B) {
+ SmallVector<Attribute::AttrKind, 8> This(Attrs.begin(), Attrs.end());
+ SmallVector<Attribute::AttrKind, 8> That(B.Attrs.begin(), B.Attrs.end());
+ return This == That;
+}
+
+AttrBuilder &AttrBuilder::addRawValue(uint64_t Val) {
+ for (Attribute::AttrKind I = Attribute::None; I != Attribute::EndAttrKinds;
+ I = Attribute::AttrKind(I + 1)) {
+ if (uint64_t A = (Val & AttributeImpl::getAttrMask(I))) {
+ Attrs.insert(I);
+
+ if (I == Attribute::Alignment)
+ Alignment = 1ULL << ((A >> 16) - 1);
+ else if (I == Attribute::StackAlignment)
+ StackAlignment = 1ULL << ((A >> 26)-1);
+ }
+ }
+
+ return *this;
+}
+
+uint64_t AttrBuilder::Raw() const {
+ uint64_t Mask = 0;
+
+ for (DenseSet<Attribute::AttrKind>::const_iterator I = Attrs.begin(),
+ E = Attrs.end(); I != E; ++I) {
+ Attribute::AttrKind Kind = *I;
+
+ if (Kind == Attribute::Alignment)
+ Mask |= (Log2_32(Alignment) + 1) << 16;
+ else if (Kind == Attribute::StackAlignment)
+ Mask |= (Log2_32(StackAlignment) + 1) << 26;
+ else
+ Mask |= AttributeImpl::getAttrMask(Kind);
+ }
+
+ return Mask;
+}
+
+//===----------------------------------------------------------------------===//
// AttributeFuncs Function Defintions
//===----------------------------------------------------------------------===//
return Attribute::get(Ty->getContext(), Incompatible);
}
-/// encodeLLVMAttributesForBitcode - This returns an integer containing an
-/// encoding of all the LLVM attributes found in the given attribute bitset.
-/// Any change to this encoding is a breaking change to bitcode compatibility.
+/// \brief This returns an integer containing an encoding of all the LLVM
+/// attributes found in the given attribute bitset. Any change to this encoding
+/// is a breaking change to bitcode compatibility.
uint64_t AttributeFuncs::encodeLLVMAttributesForBitcode(AttributeSet Attrs,
unsigned Index) {
// FIXME: It doesn't make sense to store the alignment information as an
return EncodedAttrs;
}
-/// decodeLLVMAttributesForBitcode - This returns an attribute bitset containing
-/// the LLVM attributes that have been decoded from the given integer. This
-/// function must stay in sync with 'encodeLLVMAttributesForBitcode'.
+/// \brief This returns an attribute bitset containing the LLVM attributes that
+/// have been decoded from the given integer. This function must stay in sync
+/// with 'encodeLLVMAttributesForBitcode'.
Attribute AttributeFuncs::decodeLLVMAttributesForBitcode(LLVMContext &C,
uint64_t EncodedAttrs){
// The alignment is stored as a 16-bit raw value from bits 31--16. We shift
projects / platform / upstream / llvm.git / commitdiff