X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FIR%2FAttributeImpl.h;h=0448dc17409e9e063ccbc34d39b96864fa46b601;hb=95d71357275a05a4bfc346f5b513688e26531a91;hp=34754e8e543d3ef7b4a1433c084208d06eaf52a9;hpb=c22f4aa886443507f8406d30d118fdeeac6a8c6c;p=oota-llvm.git diff --git a/lib/IR/AttributeImpl.h b/lib/IR/AttributeImpl.h index 34754e8e543..0448dc17409 100644 --- a/lib/IR/AttributeImpl.h +++ b/lib/IR/AttributeImpl.h @@ -13,11 +13,12 @@ /// //===----------------------------------------------------------------------===// -#ifndef LLVM_ATTRIBUTESIMPL_H -#define LLVM_ATTRIBUTESIMPL_H +#ifndef LLVM_LIB_IR_ATTRIBUTEIMPL_H +#define LLVM_LIB_IR_ATTRIBUTEIMPL_H #include "llvm/ADT/FoldingSet.h" #include "llvm/IR/Attributes.h" +#include namespace llvm { @@ -29,62 +30,125 @@ class LLVMContext; /// \brief This class represents a single, uniqued attribute. That attribute /// could be a single enum, a tuple, or a string. class AttributeImpl : public FoldingSetNode { - LLVMContext &Context; - Constant *Data; - SmallVector Vals; + unsigned char KindID; ///< Holds the AttrEntryKind of the attribute // AttributesImpl is uniqued, these should not be publicly available. void operator=(const AttributeImpl &) LLVM_DELETED_FUNCTION; AttributeImpl(const AttributeImpl &) LLVM_DELETED_FUNCTION; -public: - AttributeImpl(LLVMContext &C, Constant *Data) - : Context(C), Data(Data) {} - explicit AttributeImpl(LLVMContext &C, Attribute::AttrKind data); - AttributeImpl(LLVMContext &C, Attribute::AttrKind data, - ArrayRef values); - AttributeImpl(LLVMContext &C, StringRef data); - bool hasAttribute(Attribute::AttrKind A) const; - bool hasAttributes() const; +protected: + enum AttrEntryKind { + EnumAttrEntry, + IntAttrEntry, + StringAttrEntry + }; - LLVMContext &getContext() { return Context; } - ArrayRef getValues() const { return Vals; } + AttributeImpl(AttrEntryKind KindID) : KindID(KindID) {} + +public: + virtual ~AttributeImpl(); + + bool isEnumAttribute() const { return KindID == EnumAttrEntry; } + bool isIntAttribute() const { return KindID == IntAttrEntry; } + bool isStringAttribute() const { return KindID == StringAttrEntry; } - uint64_t getAlignment() const; - uint64_t getStackAlignment() const; + bool hasAttribute(Attribute::AttrKind A) const; + bool hasAttribute(StringRef Kind) const; - bool operator==(Attribute::AttrKind Kind) const; - bool operator!=(Attribute::AttrKind Kind) const; + Attribute::AttrKind getKindAsEnum() const; + uint64_t getValueAsInt() const; - bool operator==(StringRef Kind) const; - bool operator!=(StringRef Kind) const; + StringRef getKindAsString() const; + StringRef getValueAsString() const; + /// \brief Used when sorting the attributes. bool operator<(const AttributeImpl &AI) const; void Profile(FoldingSetNodeID &ID) const { - Profile(ID, Data, Vals); + if (isEnumAttribute()) + Profile(ID, getKindAsEnum(), 0); + else if (isIntAttribute()) + Profile(ID, getKindAsEnum(), getValueAsInt()); + else + Profile(ID, getKindAsString(), getValueAsString()); } - static void Profile(FoldingSetNodeID &ID, Constant *Data, - ArrayRef Vals) { - ID.AddPointer(Data); - for (unsigned I = 0, E = Vals.size(); I != E; ++I) - ID.AddPointer(Vals[I]); + static void Profile(FoldingSetNodeID &ID, Attribute::AttrKind Kind, + uint64_t Val) { + ID.AddInteger(Kind); + if (Val) ID.AddInteger(Val); + } + static void Profile(FoldingSetNodeID &ID, StringRef Kind, StringRef Values) { + ID.AddString(Kind); + if (!Values.empty()) ID.AddString(Values); } - // FIXME: Remove these! - uint64_t Raw() const; + // FIXME: Remove this! static uint64_t getAttrMask(Attribute::AttrKind Val); }; +//===----------------------------------------------------------------------===// +/// \class +/// \brief A set of classes that contain the value of the +/// attribute object. There are three main categories: enum attribute entries, +/// represented by Attribute::AttrKind; alignment attribute entries; and string +/// attribute enties, which are for target-dependent attributes. + +class EnumAttributeImpl : public AttributeImpl { + virtual void anchor(); + Attribute::AttrKind Kind; + +protected: + EnumAttributeImpl(AttrEntryKind ID, Attribute::AttrKind Kind) + : AttributeImpl(ID), Kind(Kind) {} + +public: + EnumAttributeImpl(Attribute::AttrKind Kind) + : AttributeImpl(EnumAttrEntry), Kind(Kind) {} + + Attribute::AttrKind getEnumKind() const { return Kind; } +}; + +class IntAttributeImpl : public EnumAttributeImpl { + void anchor() override; + uint64_t Val; + +public: + IntAttributeImpl(Attribute::AttrKind Kind, uint64_t Val) + : EnumAttributeImpl(IntAttrEntry, Kind), Val(Val) { + assert( + (Kind == Attribute::Alignment || Kind == Attribute::StackAlignment || + Kind == Attribute::Dereferenceable) && + "Wrong kind for int attribute!"); + } + + uint64_t getValue() const { return Val; } +}; + +class StringAttributeImpl : public AttributeImpl { + virtual void anchor(); + std::string Kind; + std::string Val; + +public: + StringAttributeImpl(StringRef Kind, StringRef Val = StringRef()) + : AttributeImpl(StringAttrEntry), Kind(Kind), Val(Val) {} + + StringRef getStringKind() const { return Kind; } + StringRef getStringValue() const { return Val; } +}; + //===----------------------------------------------------------------------===// /// \class /// \brief This class represents a group of attributes that apply to one /// element: function, return type, or parameter. class AttributeSetNode : public FoldingSetNode { - SmallVector AttrList; + unsigned NumAttrs; ///< Number of attributes in this node. - AttributeSetNode(ArrayRef Attrs) - : AttrList(Attrs.begin(), Attrs.end()) {} + AttributeSetNode(ArrayRef Attrs) : NumAttrs(Attrs.size()) { + // There's memory after the node where we can store the entries in. + std::copy(Attrs.begin(), Attrs.end(), + reinterpret_cast(this + 1)); + } // AttributesSetNode is uniqued, these should not be publicly available. void operator=(const AttributeSetNode &) LLVM_DELETED_FUNCTION; @@ -92,17 +156,24 @@ class AttributeSetNode : public FoldingSetNode { public: static AttributeSetNode *get(LLVMContext &C, ArrayRef Attrs); - typedef SmallVectorImpl::iterator iterator; - typedef SmallVectorImpl::const_iterator const_iterator; + bool hasAttribute(Attribute::AttrKind Kind) const; + bool hasAttribute(StringRef Kind) const; + bool hasAttributes() const { return NumAttrs != 0; } - iterator begin() { return AttrList.begin(); } - iterator end() { return AttrList.end(); } + Attribute getAttribute(Attribute::AttrKind Kind) const; + Attribute getAttribute(StringRef Kind) const; - const_iterator begin() const { return AttrList.begin(); } - const_iterator end() const { return AttrList.end(); } + unsigned getAlignment() const; + unsigned getStackAlignment() const; + uint64_t getDereferenceableBytes() const; + std::string getAsString(bool InAttrGrp) const; + + typedef const Attribute *iterator; + iterator begin() const { return reinterpret_cast(this + 1); } + iterator end() const { return begin() + NumAttrs; } void Profile(FoldingSetNodeID &ID) const { - Profile(ID, AttrList); + Profile(ID, makeArrayRef(begin(), end())); } static void Profile(FoldingSetNodeID &ID, ArrayRef AttrList) { for (unsigned I = 0, E = AttrList.size(); I != E; ++I) @@ -120,53 +191,67 @@ class AttributeSetImpl : public FoldingSetNode { LLVMContext &Context; typedef std::pair IndexAttrPair; - SmallVector AttrNodes; + unsigned NumAttrs; ///< Number of entries in this set. + + /// \brief Return a pointer to the IndexAttrPair for the specified slot. + const IndexAttrPair *getNode(unsigned Slot) const { + return reinterpret_cast(this + 1) + Slot; + } // AttributesSet is uniqued, these should not be publicly available. void operator=(const AttributeSetImpl &) LLVM_DELETED_FUNCTION; AttributeSetImpl(const AttributeSetImpl &) LLVM_DELETED_FUNCTION; public: AttributeSetImpl(LLVMContext &C, - ArrayRef > attrs) - : Context(C), AttrNodes(attrs.begin(), attrs.end()) {} + ArrayRef > Attrs) + : Context(C), NumAttrs(Attrs.size()) { +#ifndef NDEBUG + if (Attrs.size() >= 2) { + for (const std::pair *i = Attrs.begin() + 1, + *e = Attrs.end(); + i != e; ++i) { + assert((i-1)->first <= i->first && "Attribute set not ordered!"); + } + } +#endif + // There's memory after the node where we can store the entries in. + std::copy(Attrs.begin(), Attrs.end(), + reinterpret_cast(this + 1)); + } /// \brief Get the context that created this AttributeSetImpl. LLVMContext &getContext() { return Context; } /// \brief Return the number of attributes this AttributeSet contains. - unsigned getNumAttributes() const { return AttrNodes.size(); } + unsigned getNumAttributes() const { return NumAttrs; } /// \brief Get the index of the given "slot" in the AttrNodes list. This index /// is the index of the return, parameter, or function object that the /// attributes are applied to, not the index into the AttrNodes list where the /// attributes reside. - uint64_t getSlotIndex(unsigned Slot) const { - return AttrNodes[Slot].first; + unsigned getSlotIndex(unsigned Slot) const { + return getNode(Slot)->first; } /// \brief Retrieve the attributes for the given "slot" in the AttrNode list. /// \p Slot is an index into the AttrNodes list, not the index of the return / /// parameter/ function which the attributes apply to. AttributeSet getSlotAttributes(unsigned Slot) const { - // FIXME: This needs to use AttrNodes instead. - return AttributeSet::get(Context, AttrNodes[Slot]); + return AttributeSet::get(Context, *getNode(Slot)); } - typedef AttributeSetNode::iterator iterator; - typedef AttributeSetNode::const_iterator const_iterator; - - iterator begin(unsigned Idx) - { return AttrNodes[Idx].second->begin(); } - iterator end(unsigned Idx) - { return AttrNodes[Idx].second->end(); } + /// \brief Retrieve the attribute set node for the given "slot" in the + /// AttrNode list. + AttributeSetNode *getSlotNode(unsigned Slot) const { + return getNode(Slot)->second; + } - const_iterator begin(unsigned Idx) const - { return AttrNodes[Idx].second->begin(); } - const_iterator end(unsigned Idx) const - { return AttrNodes[Idx].second->end(); } + typedef AttributeSetNode::iterator iterator; + iterator begin(unsigned Slot) const { return getSlotNode(Slot)->begin(); } + iterator end(unsigned Slot) const { return getSlotNode(Slot)->end(); } void Profile(FoldingSetNodeID &ID) const { - Profile(ID, AttrNodes); + Profile(ID, makeArrayRef(getNode(0), getNumAttributes())); } static void Profile(FoldingSetNodeID &ID, ArrayRef > Nodes) { @@ -177,7 +262,9 @@ public: } // FIXME: This atrocity is temporary. - uint64_t Raw(uint64_t Index) const; + uint64_t Raw(unsigned Index) const; + + void dump() const; }; } // end llvm namespace