X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FIR%2FAttributes.h;h=bb62492db8ed0ca830f2d78667d40ca7fa92a2ec;hb=fb282c68b7a31e8ee2810c81f5a6ed06e77cf7d1;hp=4aee10fab3d13c4d41ac835076dafad8e094dc8f;hpb=c3662eeaa4a1a4061fc6d5c81e3eed48c5d9da26;p=oota-llvm.git diff --git a/include/llvm/IR/Attributes.h b/include/llvm/IR/Attributes.h index 4aee10fab3d..bb62492db8e 100644 --- a/include/llvm/IR/Attributes.h +++ b/include/llvm/IR/Attributes.h @@ -17,8 +17,10 @@ #define LLVM_IR_ATTRIBUTES_H #include "llvm/ADT/ArrayRef.h" -#include "llvm/ADT/DenseSet.h" #include "llvm/ADT/FoldingSet.h" +#include "llvm/Support/Compiler.h" +#include "llvm/Support/PointerLikeTypeTraits.h" +#include #include #include #include @@ -30,6 +32,7 @@ class AttributeImpl; class AttributeSetImpl; class AttributeSetNode; class Constant; +template struct DenseMapInfo; class LLVMContext; class Type; @@ -61,18 +64,22 @@ public: enum AttrKind { // IR-Level Attributes None, ///< No attributes have been set - AddressSafety, ///< Address safety checking is on. Alignment, ///< Alignment of parameter (5 bits) ///< stored as log2 of alignment with +1 bias ///< 0 means unaligned (different from align(1)) AlwaysInline, ///< inline=always + Builtin, ///< Callee is recognized as a builtin, despite + ///< nobuiltin attribute on its declaration. ByVal, ///< Pass structure by value + InAlloca, ///< Pass structure in an alloca + Cold, ///< Marks function as being in a cold path. InlineHint, ///< Source said inlining was desirable InReg, ///< Force argument to be passed in register MinSize, ///< Function must be optimized for size first Naked, ///< Naked function Nest, ///< Nested function static chain NoAlias, ///< Considered to not alias after call + NoBuiltin, ///< Callee isn't recognized as a builtin NoCapture, ///< Function creates no aliases of pointer NoDuplicate, ///< Call cannot be duplicated NoImplicitFloat, ///< Disable implicit floating point insts @@ -83,8 +90,10 @@ public: NoReturn, ///< Mark the function as not returning NoUnwind, ///< Function doesn't unwind stack OptimizeForSize, ///< opt_size + OptimizeNone, ///< Function must not be optimized. ReadNone, ///< Function does not access memory ReadOnly, ///< Function only reads from memory + Returned, ///< Return value is always equal to this argument ReturnsTwice, ///< Function can return twice SExt, ///< Sign extended before/after call StackAlignment, ///< Alignment of stack for function (3 bits) @@ -95,13 +104,13 @@ public: StackProtectReq, ///< Stack protection required. StackProtectStrong, ///< Strong Stack protection. StructRet, ///< Hidden pointer to structure to return + SanitizeAddress, ///< AddressSanitizer is on. + SanitizeThread, ///< ThreadSanitizer is on. + SanitizeMemory, ///< MemorySanitizer is on. UWTable, ///< Function must be in a unwind table ZExt, ///< Zero extended before/after call - EndAttrKinds, ///< Sentinal value useful for loops - - AttrKindEmptyKey, ///< Empty key value for DenseMapInfo - AttrKindTombstoneKey ///< Tombstone key value for DenseMapInfo + EndAttrKinds ///< Sentinal value useful for loops }; private: AttributeImpl *pImpl; @@ -169,7 +178,7 @@ public: /// \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; + std::string getAsString(bool InAttrGrp = false) const; /// \brief Equality and non-equality operators. bool operator==(Attribute A) const { return pImpl == A.pImpl; } @@ -193,20 +202,21 @@ public: /// index `1'. class AttributeSet { public: - enum AttrIndex { + enum AttrIndex LLVM_ENUM_INT_TYPE(unsigned) { ReturnIndex = 0U, FunctionIndex = ~0U }; private: friend class AttrBuilder; friend class AttributeSetImpl; + template friend struct DenseMapInfo; /// \brief The attributes that we are managing. This can be null to represent /// the empty attributes list. AttributeSetImpl *pImpl; /// \brief The attributes for the specified index are returned. - AttributeSetNode *getAttributes(unsigned Idx) const; + AttributeSetNode *getAttributes(unsigned Index) const; /// \brief Create an AttributeSet with the specified parameters in it. static AttributeSet get(LLVMContext &C, @@ -223,11 +233,6 @@ private: explicit AttributeSet(AttributeSetImpl *LI) : pImpl(LI) {} public: AttributeSet() : pImpl(0) {} - AttributeSet(const AttributeSet &P) : pImpl(P.pImpl) {} - const AttributeSet &operator=(const AttributeSet &RHS) { - pImpl = RHS.pImpl; - return *this; - } //===--------------------------------------------------------------------===// // AttributeSet Construction and Mutation @@ -235,38 +240,48 @@ public: /// \brief Return an AttributeSet with the specified parameters in it. static AttributeSet get(LLVMContext &C, ArrayRef Attrs); - static AttributeSet get(LLVMContext &C, unsigned Idx, + static AttributeSet get(LLVMContext &C, unsigned Index, ArrayRef Kind); - static AttributeSet get(LLVMContext &C, unsigned Idx, AttrBuilder &B); + static AttributeSet get(LLVMContext &C, unsigned Index, AttrBuilder &B); /// \brief Add an attribute to the attribute set at the given index. Since /// attribute sets are immutable, this returns a new set. - AttributeSet addAttribute(LLVMContext &C, unsigned Idx, + AttributeSet addAttribute(LLVMContext &C, unsigned Index, Attribute::AttrKind Attr) const; + /// \brief Add an attribute to the attribute set at the given index. Since + /// attribute sets are immutable, this returns a new set. + AttributeSet addAttribute(LLVMContext &C, unsigned Index, + StringRef Kind) const; + AttributeSet addAttribute(LLVMContext &C, unsigned Index, + StringRef Kind, StringRef Value) const; + /// \brief Add attributes to the attribute set at the given index. Since /// attribute sets are immutable, this returns a new set. - AttributeSet addAttributes(LLVMContext &C, unsigned Idx, + AttributeSet addAttributes(LLVMContext &C, unsigned Index, AttributeSet Attrs) const; /// \brief Remove the specified attribute at the specified index from this /// attribute list. Since attribute lists are immutable, this returns the new /// list. - AttributeSet removeAttribute(LLVMContext &C, unsigned Idx, + AttributeSet removeAttribute(LLVMContext &C, unsigned Index, Attribute::AttrKind Attr) const; /// \brief Remove the specified attributes at the specified index from this /// attribute list. Since attribute lists are immutable, this returns the new /// list. - AttributeSet removeAttributes(LLVMContext &C, unsigned Idx, + AttributeSet removeAttributes(LLVMContext &C, unsigned Index, AttributeSet Attrs) const; //===--------------------------------------------------------------------===// // AttributeSet Accessors //===--------------------------------------------------------------------===// + /// \brief Retrieve the LLVM context. + LLVMContext &getContext() const; + /// \brief The attributes for the specified index are returned. - AttributeSet getParamAttributes(unsigned Idx) const; + AttributeSet getParamAttributes(unsigned Index) const; /// \brief The attributes for the ret value are returned. AttributeSet getRetAttributes() const; @@ -277,6 +292,9 @@ public: /// \brief Return true if the attribute exists at the given index. bool hasAttribute(unsigned Index, Attribute::AttrKind Kind) const; + /// \brief Return true if the attribute exists at the given index. + bool hasAttribute(unsigned Index, StringRef Kind) const; + /// \brief Return true if attribute exists at the given index. bool hasAttributes(unsigned Index) const; @@ -284,19 +302,25 @@ public: /// parameter or for the return value. bool hasAttrSomewhere(Attribute::AttrKind Attr) const; + /// \brief Return the attribute object that exists at the given index. + Attribute getAttribute(unsigned Index, Attribute::AttrKind Kind) const; + + /// \brief Return the attribute object that exists at the given index. + Attribute getAttribute(unsigned Index, StringRef Kind) const; + /// \brief Return the alignment for the specified function parameter. - unsigned getParamAlignment(unsigned Idx) const; + unsigned getParamAlignment(unsigned Index) const; /// \brief Get the stack alignment. unsigned getStackAlignment(unsigned Index) const; /// \brief Return the attributes at the index as a string. - std::string getAsString(unsigned Index) const; + std::string getAsString(unsigned Index, bool InAttrGrp = false) const; typedef ArrayRef::iterator iterator; - iterator begin(unsigned Idx) const; - iterator end(unsigned Idx) const; + iterator begin(unsigned Slot) const; + iterator end(unsigned Slot) const; /// operator==/!= - Provide equality predicates. bool operator==(const AttributeSet &RHS) const { @@ -329,7 +353,7 @@ public: unsigned getNumSlots() const; /// \brief Return the index for the given slot. - uint64_t getSlotIndex(unsigned Slot) const; + unsigned getSlotIndex(unsigned Slot) const; /// \brief Return the attributes at the given slot. AttributeSet getSlotAttributes(unsigned Slot) const; @@ -339,22 +363,23 @@ public: //===----------------------------------------------------------------------===// /// \class -/// \brief Provide DenseMapInfo for Attribute::AttrKinds. This is used by -/// AttrBuilder. -template<> struct DenseMapInfo { - static inline Attribute::AttrKind getEmptyKey() { - return Attribute::AttrKindEmptyKey; +/// \brief Provide DenseMapInfo for AttributeSet. +template<> struct DenseMapInfo { + static inline AttributeSet getEmptyKey() { + uintptr_t Val = static_cast(-1); + Val <<= PointerLikeTypeTraits::NumLowBitsAvailable; + return AttributeSet(reinterpret_cast(Val)); } - static inline Attribute::AttrKind getTombstoneKey() { - return Attribute::AttrKindTombstoneKey; + static inline AttributeSet getTombstoneKey() { + uintptr_t Val = static_cast(-2); + Val <<= PointerLikeTypeTraits::NumLowBitsAvailable; + return AttributeSet(reinterpret_cast(Val)); } - static unsigned getHashValue(const Attribute::AttrKind &Val) { - return Val * 37U; - } - static bool isEqual(const Attribute::AttrKind &LHS, - const Attribute::AttrKind &RHS) { - return LHS == RHS; + static unsigned getHashValue(AttributeSet AS) { + return (unsigned((uintptr_t)AS.pImpl) >> 4) ^ + (unsigned((uintptr_t)AS.pImpl) >> 9); } + static bool isEqual(AttributeSet LHS, AttributeSet RHS) { return LHS == RHS; } }; //===----------------------------------------------------------------------===// @@ -364,16 +389,17 @@ template<> struct DenseMapInfo { /// value, however, is not. So this can be used as a quick way to test for /// equality, presence of attributes, etc. class AttrBuilder { - DenseSet Attrs; + std::bitset Attrs; std::map TargetDepAttrs; uint64_t Alignment; uint64_t StackAlignment; public: - AttrBuilder() : Alignment(0), StackAlignment(0) {} - explicit AttrBuilder(uint64_t Val) : Alignment(0), StackAlignment(0) { + AttrBuilder() : Attrs(0), Alignment(0), StackAlignment(0) {} + explicit AttrBuilder(uint64_t Val) + : Attrs(0), Alignment(0), StackAlignment(0) { addRawValue(Val); } - AttrBuilder(const Attribute &A) : Alignment(0), StackAlignment(0) { + AttrBuilder(const Attribute &A) : Attrs(0), Alignment(0), StackAlignment(0) { addAttribute(A); } AttrBuilder(AttributeSet AS, unsigned Idx); @@ -391,7 +417,7 @@ public: AttrBuilder &addAttribute(Attribute A); /// \brief Add the target-dependent attribute to the builder. - AttrBuilder &addAttribute(StringRef A, StringRef V); + AttrBuilder &addAttribute(StringRef A, StringRef V = StringRef()); /// \brief Remove an attribute from the builder. AttrBuilder &removeAttribute(Attribute::AttrKind Val); @@ -406,7 +432,10 @@ public: AttrBuilder &merge(const AttrBuilder &B); /// \brief Return true if the builder has the specified attribute. - bool contains(Attribute::AttrKind A) const; + bool contains(Attribute::AttrKind A) const { + assert((unsigned)A < Attribute::EndAttrKinds && "Attribute out of range!"); + return Attrs[A]; + } /// \brief Return true if the builder has the specified target-dependent /// attribute. @@ -436,15 +465,9 @@ public: /// the form used internally in Attribute. AttrBuilder &addStackAlignmentAttr(unsigned Align); - // Iterators for target-independent attributes. - typedef DenseSet::iterator iterator; - typedef DenseSet::const_iterator const_iterator; - - 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 Return true if the builder contains no target-independent + /// attributes. + bool empty() const { return Attrs.none(); } // Iterators for target-dependent attributes. typedef std::pair td_type; @@ -457,30 +480,7 @@ public: td_const_iterator td_begin() const { return TargetDepAttrs.begin(); } td_const_iterator td_end() const { return TargetDepAttrs.end(); } - /// \brief Remove attributes that are used on functions only. - void removeFunctionOnlyAttrs() { - removeAttribute(Attribute::NoReturn) - .removeAttribute(Attribute::NoUnwind) - .removeAttribute(Attribute::ReadNone) - .removeAttribute(Attribute::ReadOnly) - .removeAttribute(Attribute::NoInline) - .removeAttribute(Attribute::AlwaysInline) - .removeAttribute(Attribute::OptimizeForSize) - .removeAttribute(Attribute::StackProtect) - .removeAttribute(Attribute::StackProtectReq) - .removeAttribute(Attribute::StackProtectStrong) - .removeAttribute(Attribute::NoRedZone) - .removeAttribute(Attribute::NoImplicitFloat) - .removeAttribute(Attribute::Naked) - .removeAttribute(Attribute::InlineHint) - .removeAttribute(Attribute::StackAlignment) - .removeAttribute(Attribute::UWTable) - .removeAttribute(Attribute::NonLazyBind) - .removeAttribute(Attribute::ReturnsTwice) - .removeAttribute(Attribute::AddressSafety) - .removeAttribute(Attribute::MinSize) - .removeAttribute(Attribute::NoDuplicate); - } + bool td_empty() const { return TargetDepAttrs.empty(); } bool operator==(const AttrBuilder &B); bool operator!=(const AttrBuilder &B) {