Cold, ///< Marks function as being in a cold path.
InlineHint, ///< Source said inlining was desirable
InReg, ///< Force argument to be passed in register
+ JumpTable, ///< Build jump-instruction tables and replace refs.
MinSize, ///< Function must be optimized for size first
Naked, ///< Naked function
Nest, ///< Nested function static chain
NoInline, ///< inline=never
NonLazyBind, ///< Function is called early and/or
///< often, so lazy binding isn't worthwhile
+ NonNull, ///< Pointer is known to be not null
+ Dereferenceable, ///< Pointer is known to be dereferenceable
+ DereferenceableOrNull, ///< Pointer is either null or dereferenceable
NoRedZone, ///< Disable redzone
NoReturn, ///< Mark the function as not returning
NoUnwind, ///< Function doesn't unwind stack
AttributeImpl *pImpl;
Attribute(AttributeImpl *A) : pImpl(A) {}
public:
- Attribute() : pImpl(0) {}
+ Attribute() : pImpl(nullptr) {}
//===--------------------------------------------------------------------===//
// Attribute Construction
/// alignment set.
static Attribute getWithAlignment(LLVMContext &Context, uint64_t Align);
static Attribute getWithStackAlignment(LLVMContext &Context, uint64_t Align);
+ static Attribute getWithDereferenceableBytes(LLVMContext &Context,
+ uint64_t Bytes);
+ static Attribute getWithDereferenceableOrNullBytes(LLVMContext &Context,
+ uint64_t Bytes);
//===--------------------------------------------------------------------===//
// Attribute Accessors
/// \brief Return true if the attribute is an Attribute::AttrKind type.
bool isEnumAttribute() const;
- /// \brief Return true if the attribute is an alignment attribute.
- bool isAlignAttribute() const;
+ /// \brief Return true if the attribute is an integer attribute.
+ bool isIntAttribute() const;
/// \brief Return true if the attribute is a string (target-dependent)
/// attribute.
/// alignment value.
unsigned getStackAlignment() const;
+ /// \brief Returns the number of dereferenceable bytes from the
+ /// dereferenceable attribute (or zero if unknown).
+ uint64_t getDereferenceableBytes() const;
+
+ /// \brief Returns the number of dereferenceable_or_null bytes from the
+ /// dereferenceable_or_null attribute (or zero if unknown).
+ uint64_t getDereferenceableOrNullBytes() 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(bool InAttrGrp = false) const;
/// index `1'.
class AttributeSet {
public:
- enum AttrIndex LLVM_ENUM_INT_TYPE(unsigned) {
+ enum AttrIndex : unsigned {
ReturnIndex = 0U,
FunctionIndex = ~0U
};
explicit AttributeSet(AttributeSetImpl *LI) : pImpl(LI) {}
public:
- AttributeSet() : pImpl(0) {}
+ AttributeSet() : pImpl(nullptr) {}
//===--------------------------------------------------------------------===//
// AttributeSet Construction and Mutation
static AttributeSet get(LLVMContext &C, ArrayRef<AttributeSet> Attrs);
static AttributeSet get(LLVMContext &C, unsigned Index,
ArrayRef<Attribute::AttrKind> Kind);
- static AttributeSet get(LLVMContext &C, unsigned Index, AttrBuilder &B);
+ static AttributeSet get(LLVMContext &C, unsigned Index, const AttrBuilder &B);
- /// \brief Add an attribute to the attribute set at the given index. Since
+ /// \brief Add an attribute to the attribute set at the given index. Because
/// attribute sets are immutable, this returns a new set.
AttributeSet addAttribute(LLVMContext &C, unsigned Index,
Attribute::AttrKind Attr) const;
- /// \brief Add an attribute to the attribute set at the given index. Since
+ /// \brief Add an attribute to the attribute set at the given index. Because
/// 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
+ /// \brief Add attributes to the attribute set at the given index. Because
/// attribute sets are immutable, this returns a new set.
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.
+ /// attribute list. Because attribute lists are immutable, this returns the
+ /// new list.
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.
+ /// attribute list. Because attribute lists are immutable, this returns the
+ /// new list.
AttributeSet removeAttributes(LLVMContext &C, unsigned Index,
AttributeSet Attrs) const;
+ /// \brief Remove the specified attributes at the specified index from this
+ /// attribute list. Because attribute lists are immutable, this returns the
+ /// new list.
+ AttributeSet removeAttributes(LLVMContext &C, unsigned Index,
+ const AttrBuilder &Attrs) const;
+
+ /// \brief Add the dereferenceable attribute to the attribute set at the given
+ /// index. Because attribute sets are immutable, this returns a new set.
+ AttributeSet addDereferenceableAttr(LLVMContext &C, unsigned Index,
+ uint64_t Bytes) const;
+
+ /// \brief Add the dereferenceable_or_null attribute to the attribute set at
+ /// the given index. Because attribute sets are immutable, this returns a new
+ /// set.
+ AttributeSet addDereferenceableOrNullAttr(LLVMContext &C, unsigned Index,
+ uint64_t Bytes) const;
+
//===--------------------------------------------------------------------===//
// AttributeSet Accessors
//===--------------------------------------------------------------------===//
/// \brief Get the stack alignment.
unsigned getStackAlignment(unsigned Index) const;
+ /// \brief Get the number of dereferenceable bytes (or zero if unknown).
+ uint64_t getDereferenceableBytes(unsigned Index) const;
+
+ /// \brief Get the number of dereferenceable_or_null bytes (or zero if
+ /// unknown).
+ uint64_t getDereferenceableOrNullBytes(unsigned Index) const;
+
/// \brief Return the attributes at the index as a string.
std::string getAsString(unsigned Index, bool InAttrGrp = false) const;
std::map<std::string, std::string> TargetDepAttrs;
uint64_t Alignment;
uint64_t StackAlignment;
+ uint64_t DerefBytes;
+ uint64_t DerefOrNullBytes;
public:
- AttrBuilder() : Attrs(0), Alignment(0), StackAlignment(0) {}
+ AttrBuilder()
+ : Attrs(0), Alignment(0), StackAlignment(0), DerefBytes(0),
+ DerefOrNullBytes(0) {}
explicit AttrBuilder(uint64_t Val)
- : Attrs(0), Alignment(0), StackAlignment(0) {
+ : Attrs(0), Alignment(0), StackAlignment(0), DerefBytes(0),
+ DerefOrNullBytes(0) {
addRawValue(Val);
}
- AttrBuilder(const Attribute &A) : Attrs(0), Alignment(0), StackAlignment(0) {
+ AttrBuilder(const Attribute &A)
+ : Attrs(0), Alignment(0), StackAlignment(0), DerefBytes(0),
+ DerefOrNullBytes(0) {
addAttribute(A);
}
AttrBuilder(AttributeSet AS, unsigned Idx);
- AttrBuilder(const AttrBuilder &B)
- : Attrs(B.Attrs),
- TargetDepAttrs(B.TargetDepAttrs.begin(), B.TargetDepAttrs.end()),
- Alignment(B.Alignment), StackAlignment(B.StackAlignment) {}
void clear();
/// \brief Add the attributes from the builder.
AttrBuilder &merge(const AttrBuilder &B);
+ /// \brief Remove the attributes from the builder.
+ AttrBuilder &remove(const AttrBuilder &B);
+
+ /// \brief Return true if the builder has any attribute that's in the
+ /// specified builder.
+ bool overlaps(const AttrBuilder &B) const;
+
/// \brief Return true if the builder has the specified attribute.
bool contains(Attribute::AttrKind A) const {
assert((unsigned)A < Attribute::EndAttrKinds && "Attribute out of range!");
/// \brief Retrieve the stack alignment attribute, if it exists.
uint64_t getStackAlignment() const { return StackAlignment; }
+ /// \brief Retrieve the number of dereferenceable bytes, if the dereferenceable
+ /// attribute exists (zero is returned otherwise).
+ uint64_t getDereferenceableBytes() const { return DerefBytes; }
+
+ /// \brief Retrieve the number of dereferenceable_or_null bytes, if the
+ /// dereferenceable_or_null attribute exists (zero is returned otherwise).
+ uint64_t getDereferenceableOrNullBytes() const { return DerefOrNullBytes; }
+
/// \brief This turns an int alignment (which must be a power of 2) into the
/// form used internally in Attribute.
AttrBuilder &addAlignmentAttr(unsigned Align);
/// the form used internally in Attribute.
AttrBuilder &addStackAlignmentAttr(unsigned Align);
+ /// \brief This turns the number of dereferenceable bytes into the form used
+ /// internally in Attribute.
+ AttrBuilder &addDereferenceableAttr(uint64_t Bytes);
+
+ /// \brief This turns the number of dereferenceable_or_null bytes into the
+ /// form used internally in Attribute.
+ AttrBuilder &addDereferenceableOrNullAttr(uint64_t Bytes);
+
/// \brief Return true if the builder contains no target-independent
/// attributes.
bool empty() const { return Attrs.none(); }
typedef std::pair<std::string, std::string> td_type;
typedef std::map<std::string, std::string>::iterator td_iterator;
typedef std::map<std::string, std::string>::const_iterator td_const_iterator;
+ typedef llvm::iterator_range<td_iterator> td_range;
+ typedef llvm::iterator_range<td_const_iterator> td_const_range;
td_iterator td_begin() { return TargetDepAttrs.begin(); }
td_iterator td_end() { return TargetDepAttrs.end(); }
td_const_iterator td_begin() const { return TargetDepAttrs.begin(); }
td_const_iterator td_end() const { return TargetDepAttrs.end(); }
+ td_range td_attrs() { return td_range(td_begin(), td_end()); }
+ td_const_range td_attrs() const {
+ return td_const_range(td_begin(), td_end());
+ }
+
bool td_empty() const { return TargetDepAttrs.empty(); }
bool operator==(const AttrBuilder &B);
namespace AttributeFuncs {
/// \brief Which attributes cannot be applied to a type.
-AttributeSet typeIncompatible(Type *Ty, uint64_t Index);
+AttrBuilder typeIncompatible(const Type *Ty);
} // end AttributeFuncs namespace
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