#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/DenseSet.h"
+#include "llvm/ADT/FoldingSet.h"
#include "llvm/Support/MathExtras.h"
#include <cassert>
#include <string>
///< alignstack=(1))
StackProtect, ///< Stack protection.
StackProtectReq, ///< Stack protection required.
+ StackProtectStrong, ///< Strong Stack protection.
StructRet, ///< Hidden pointer to structure to return
UWTable, ///< Function must be in a unwind table
ZExt, ///< Zero extended before/after call
public:
Attribute() : pImpl(0) {}
- /// \brief Return a uniquified Attribute object. This takes the uniquified
- /// value from the Builder and wraps it in the Attribute class.
- static Attribute get(LLVMContext &Context, ArrayRef<AttrKind> Vals);
+ /// \brief Return a uniquified Attribute object.
+ static Attribute get(LLVMContext &Context, ArrayRef<AttrKind> Kinds);
static Attribute get(LLVMContext &Context, AttrBuilder &B);
+ /// \brief Return a uniquified Attribute object that has the specific
+ /// alignment set.
+ static Attribute getWithAlignment(LLVMContext &Context, uint64_t Align);
+ static Attribute getWithStackAlignment(LLVMContext &Context, uint64_t Align);
+
/// \brief Return true if the attribute is present.
bool hasAttribute(AttrKind Val) const;
/// value.
unsigned getAlignment() const;
- /// \brief Set the alignment field of an attribute.
- void setAlignment(unsigned Align);
-
/// \brief Returns the stack alignment field of an attribute as a byte
/// alignment value.
unsigned getStackAlignment() const;
- /// \brief Set the stack alignment field of an attribute.
- void setStackAlignment(unsigned Align);
-
/// \brief Equality and non-equality query methods.
bool operator==(AttrKind K) const;
bool operator!=(AttrKind K) const;
- // FIXME: Remove these 'operator' methods.
- bool operator==(const Attribute &A) const {
- return pImpl == A.pImpl;
- }
- bool operator!=(const Attribute &A) const {
- return pImpl != A.pImpl;
- }
-
- uint64_t Raw() const;
-
- /// \brief Which attributes cannot be applied to a type.
- static Attribute typeIncompatible(Type *Ty);
+ bool operator==(Attribute A) const { return pImpl == A.pImpl; }
+ bool operator!=(Attribute A) const { return pImpl != A.pImpl; }
- /// \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.
- static uint64_t encodeLLVMAttributesForBitcode(Attribute Attrs);
-
- /// \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'.
- static Attribute decodeLLVMAttributesForBitcode(LLVMContext &C,
- uint64_t EncodedAttrs);
+ /// \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);
+ }
+
+ uint64_t Raw() const;
};
//===----------------------------------------------------------------------===//
}
};
+//===----------------------------------------------------------------------===//
+// AttributeSet Smart Pointer
+//===----------------------------------------------------------------------===//
+
+class AttrBuilder;
+class AttributeSetImpl;
+
//===----------------------------------------------------------------------===//
/// \class
/// \brief This is just a pair of values to associate a set of attributes with
/// an index.
struct AttributeWithIndex {
Attribute Attrs; ///< The attributes that are set, or'd together.
- Constant *Val; ///< Value attached to attribute, e.g. alignment.
unsigned Index; ///< Index of the parameter for which the attributes apply.
- ///< Index 0 is used for return value attributes.
- ///< Index ~0U is used for function attributes.
- static AttributeWithIndex get(LLVMContext &C, unsigned Idx,
- ArrayRef<Attribute::AttrKind> Attrs) {
- return get(Idx, Attribute::get(C, Attrs));
- }
static AttributeWithIndex get(unsigned Idx, Attribute Attrs) {
AttributeWithIndex P;
P.Index = Idx;
P.Attrs = Attrs;
- P.Val = 0;
- return P;
- }
- static AttributeWithIndex get(unsigned Idx, Attribute Attrs, Constant *Val) {
- AttributeWithIndex P;
- P.Index = Idx;
- P.Attrs = Attrs;
- P.Val = Val;
return P;
}
};
-//===----------------------------------------------------------------------===//
-// AttributeSet Smart Pointer
-//===----------------------------------------------------------------------===//
-
-class AttrBuilder;
-class AttributeSetImpl;
-
//===----------------------------------------------------------------------===//
/// \class
/// \brief This class manages the ref count for the opaque AttributeSetImpl
};
private:
friend class AttrBuilder;
+ friend class AttributeSetImpl;
/// \brief The attributes that we are managing. This can be null to represent
/// the empty attributes list.
- AttributeSetImpl *AttrList;
+ AttributeSetImpl *pImpl;
/// \brief The attributes for the specified index are returned. Attributes
/// for the result are denoted with Idx = 0.
Attribute getAttributes(unsigned Idx) const;
- explicit AttributeSet(AttributeSetImpl *LI) : AttrList(LI) {}
+ /// \brief Create an AttributeSet from the AttributeWithIndex structures.
+ /// N.B. this is only temporary. It will be disappearing in the future.
+ static AttributeSet get(LLVMContext &C, ArrayRef<AttributeWithIndex> Attrs);
+
+ explicit AttributeSet(AttributeSetImpl *LI) : pImpl(LI) {}
public:
- AttributeSet() : AttrList(0) {}
- AttributeSet(const AttributeSet &P) : AttrList(P.AttrList) {}
- const AttributeSet &operator=(const AttributeSet &RHS);
+ AttributeSet() : pImpl(0) {}
+ AttributeSet(const AttributeSet &P) : pImpl(P.pImpl) {}
+ const AttributeSet &operator=(const AttributeSet &RHS) {
+ pImpl = RHS.pImpl;
+ return *this;
+ }
//===--------------------------------------------------------------------===//
// Attribute List Construction and Mutation
//===--------------------------------------------------------------------===//
/// \brief Return an AttributeSet with the specified parameters in it.
- static AttributeSet get(LLVMContext &C, ArrayRef<AttributeWithIndex> Attrs);
+ static AttributeSet get(LLVMContext &C, ArrayRef<AttributeSet> Attrs);
+ static AttributeSet get(LLVMContext &C, unsigned Idx,
+ ArrayRef<Attribute::AttrKind> Kind);
static AttributeSet get(LLVMContext &C, unsigned Idx, AttrBuilder &B);
- /// \brief Add the specified attribute at the specified index to this
- /// attribute list. Since attribute lists are immutable, this returns the new
- /// list.
- AttributeSet addAttr(LLVMContext &C, unsigned Idx, Attribute Attrs) 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 Idx,
+ Attribute::AttrKind Attr) 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 Attrs) const;
+
+ /// \brief Add return attributes to this attribute set. Since attribute sets
+ /// are immutable, this returns a new set.
+ AttributeSet addRetAttributes(LLVMContext &C, AttributeSet Attrs) const {
+ return addAttributes(C, ReturnIndex, Attrs);
+ }
/// \brief Add function attributes to this attribute set. Since attribute sets
/// are immutable, this returns a new set.
- AttributeSet addFnAttributes(LLVMContext &C, AttributeSet Attrs) const;
+ AttributeSet addFnAttributes(LLVMContext &C, AttributeSet Attrs) const {
+ return addAttributes(C, FunctionIndex, Attrs);
+ }
/// \brief Remove the specified attribute at the specified index from this
- /// attribute list. Since attribute lists are immutable, this returns the new
+ /// attribute list. Since attribute lists are immutable, this returns the new
+ /// list.
+ AttributeSet removeAttribute(LLVMContext &C, unsigned Idx,
+ 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 removeAttr(LLVMContext &C, unsigned Idx, Attribute Attrs) const;
+ AttributeSet removeAttributes(LLVMContext &C, unsigned Idx,
+ AttributeSet Attrs) const;
//===--------------------------------------------------------------------===//
- // Attribute List Accessors
+ // Attribute Set Accessors
//===--------------------------------------------------------------------===//
/// \brief The attributes for the specified index are returned.
- Attribute getParamAttributes(unsigned Idx) const {
- return getAttributes(Idx);
- }
+ AttributeSet getParamAttributes(unsigned Idx) const;
/// \brief The attributes for the ret value are returned.
- Attribute getRetAttributes() const {
- return getAttributes(ReturnIndex);
- }
+ AttributeSet getRetAttributes() const;
/// \brief The function attributes are returned.
- Attribute getFnAttributes() const {
- return getAttributes(FunctionIndex);
- }
-
- /// \brief Return the alignment for the specified function parameter.
- unsigned getParamAlignment(unsigned Idx) const;
+ AttributeSet getFnAttributes() const;
/// \brief Return true if the attribute exists at the given index.
- bool hasAttribute(unsigned Index, Attribute::AttrKind Kind) const;
+ bool hasAttribute(uint64_t Index, Attribute::AttrKind Kind) const;
/// \brief Return true if attribute exists at the given index.
- bool hasAttributes(unsigned Index) const;
+ bool hasAttributes(uint64_t Index) const;
+
+ /// \brief Return the alignment for the specified function parameter.
+ unsigned getParamAlignment(uint64_t Idx) const;
/// \brief Get the stack alignment.
- unsigned getStackAlignment(unsigned Index) const;
+ unsigned getStackAlignment(uint64_t Index) const;
/// \brief Return the attributes at the index as a string.
- std::string getAsString(unsigned Index) const;
+ std::string getAsString(uint64_t Index) const;
uint64_t Raw(unsigned Index) const;
/// operator==/!= - Provide equality predicates.
bool operator==(const AttributeSet &RHS) const {
- return AttrList == RHS.AttrList;
+ return pImpl == RHS.pImpl;
}
bool operator!=(const AttributeSet &RHS) const {
- return AttrList != RHS.AttrList;
+ return pImpl != RHS.pImpl;
}
//===--------------------------------------------------------------------===//
/// \brief Return a raw pointer that uniquely identifies this attribute list.
void *getRawPointer() const {
- return AttrList;
+ return pImpl;
}
// Attributes are stored as a dense set of slots, where there is one slot for
/// \brief Return true if there are no attributes.
bool isEmpty() const {
- return AttrList == 0;
+ return pImpl == 0;
}
/// \brief Return the number of slots used in this attribute list. This is
/// function itself).
unsigned getNumSlots() const;
- /// \brief Return the AttributeWithIndex at the specified slot. This holds a
- /// index number plus a set of attributes.
- const AttributeWithIndex &getSlot(unsigned Slot) const;
+ /// \brief Return the index for the given slot.
+ uint64_t getSlotIndex(unsigned Slot) const;
+
+ /// \brief Return the attributes at the given slot.
+ AttributeSet getSlotAttributes(unsigned Slot) const;
void dump() const;
};
/// \brief Remove an attribute from the builder.
AttrBuilder &removeAttribute(Attribute::AttrKind Val);
- /// \brief Add the attributes from A to the builder.
- AttrBuilder &addAttributes(const Attribute &A);
+ /// \brief Add the attributes to the builder.
+ AttrBuilder &addAttributes(Attribute A);
+
+ /// \brief Remove the attributes from the builder.
+ AttrBuilder &removeAttributes(Attribute A);
- /// \brief Remove the attributes from A from the builder.
- AttrBuilder &removeAttributes(const Attribute &A);
+ /// \brief Add the attributes to the builder.
+ AttrBuilder &addAttributes(AttributeSet A);
/// \brief Return true if the builder has the specified attribute.
bool contains(Attribute::AttrKind A) const;
.removeAttribute(Attribute::OptimizeForSize)
.removeAttribute(Attribute::StackProtect)
.removeAttribute(Attribute::StackProtectReq)
+ .removeAttribute(Attribute::StackProtectStrong)
.removeAttribute(Attribute::NoRedZone)
.removeAttribute(Attribute::NoImplicitFloat)
.removeAttribute(Attribute::Naked)
}
};
+namespace AttributeFuncs {
+
+/// \brief Which attributes cannot be applied to a type.
+Attribute typeIncompatible(Type *Ty);
+
+/// \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 encodeLLVMAttributesForBitcode(AttributeSet Attrs, unsigned Index);
+
+/// \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 decodeLLVMAttributesForBitcode(LLVMContext &C,
+ uint64_t EncodedAttrs);
+
+} // end AttributeFuncs namespace
+
} // end llvm namespace
#endif
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