// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
-//
-// This file contains the simple types necessary to represent the
-// attributes associated with functions and their calls.
-//
+///
+/// \file
+/// \brief This file contains the simple types necessary to represent the
+/// attributes associated with functions and their calls.
+///
//===----------------------------------------------------------------------===//
#ifndef LLVM_ATTRIBUTES_H
class Type;
//===----------------------------------------------------------------------===//
-/// \class Functions, function parameters, and return types can have attributes
+/// \class
+/// \brief Functions, function parameters, and return types can have attributes
/// to indicate how they should be treated by optimizations and code
/// generation. This class represents one of those attributes. It's light-weight
/// and should be passed around by-value.
/// an exception might pass by.
/// uwtable + nounwind = Needs an entry because the ABI says so.
- enum AttrVal {
+ enum AttrKind {
// IR-Level Attributes
None, ///< No attributes have been set
AddressSafety, ///< Address safety checking is on.
ZExt ///< Zero extended before/after call
};
private:
- AttributeImpl *Attrs;
- Attribute(AttributeImpl *A) : Attrs(A) {}
+ AttributeImpl *pImpl;
+ Attribute(AttributeImpl *A) : pImpl(A) {}
public:
- Attribute() : Attrs(0) {}
+ 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<AttrVal> Vals);
+ static Attribute get(LLVMContext &Context, ArrayRef<AttrKind> Vals);
static Attribute get(LLVMContext &Context, AttrBuilder &B);
/// \brief Return true if the attribute is present.
- bool hasAttribute(AttrVal Val) const;
+ bool hasAttribute(AttrKind Val) const;
/// \brief Return true if attributes exist
bool hasAttributes() const;
unsigned getStackAlignment() const;
bool operator==(const Attribute &A) const {
- return Attrs == A.Attrs;
+ return pImpl == A.pImpl;
}
bool operator!=(const Attribute &A) const {
- return Attrs != A.Attrs;
+ return pImpl != A.pImpl;
}
- uint64_t Raw() const;
+ uint64_t getBitMask() const;
/// \brief Which attributes cannot be applied to a type.
static Attribute typeIncompatible(Type *Ty);
};
//===----------------------------------------------------------------------===//
-/// AttrBuilder - 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 equality, presence of attributes, etc.
+/// \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
+/// equality, presence of attributes, etc.
class AttrBuilder {
uint64_t Bits;
public:
AttrBuilder() : Bits(0) {}
explicit AttrBuilder(uint64_t B) : Bits(B) {}
- AttrBuilder(const Attribute &A) : Bits(A.Raw()) {}
+ AttrBuilder(const Attribute &A) : Bits(A.getBitMask()) {}
void clear() { Bits = 0; }
/// addAttribute - Add an attribute to the builder.
- AttrBuilder &addAttribute(Attribute::AttrVal Val);
+ AttrBuilder &addAttribute(Attribute::AttrKind Val);
/// removeAttribute - Remove an attribute from the builder.
- AttrBuilder &removeAttribute(Attribute::AttrVal Val);
+ AttrBuilder &removeAttribute(Attribute::AttrKind Val);
/// addAttribute - Add the attributes from A to the builder.
AttrBuilder &addAttributes(const Attribute &A);
/// removeAttribute - Remove the attributes from A from the builder.
AttrBuilder &removeAttributes(const Attribute &A);
- /// hasAttribute - Return true if the builder has the specified attribute.
- bool hasAttribute(Attribute::AttrVal A) const;
+ /// \brief Return true if the builder has the specified attribute.
+ bool contains(Attribute::AttrKind A) const;
/// hasAttributes - Return true if the builder has IR-level attributes.
bool hasAttributes() const;
.removeAttribute(Attribute::NoDuplicate);
}
- uint64_t Raw() const { return Bits; }
+ uint64_t getBitMask() const { return Bits; }
bool operator==(const AttrBuilder &B) {
return Bits == B.Bits;
};
//===----------------------------------------------------------------------===//
-/// \class This is just a pair of values to associate a set of attributes with
+/// \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.
///< Index ~0U is used for function attributes.
static AttributeWithIndex get(LLVMContext &C, unsigned Idx,
- ArrayRef<Attribute::AttrVal> Attrs) {
+ ArrayRef<Attribute::AttrKind> Attrs) {
return get(Idx, Attribute::get(C, Attrs));
}
static AttributeWithIndex get(unsigned Idx, Attribute Attrs) {
class AttributeSetImpl;
//===----------------------------------------------------------------------===//
-/// \class This class manages the ref count for the opaque AttributeSetImpl
+/// \class
+/// \brief This class manages the ref count for the opaque AttributeSetImpl
/// object and provides accessors for it.
class AttributeSet {
public:
return getAttributes(Idx).getAlignment();
}
+ /// \brief Return true if the attribute exists at the given index.
+ bool hasAttribute(unsigned Index, Attribute::AttrKind Kind) const;
+
+ /// \brief Return true if attribute exists at the given index.
+ bool hasAttributes(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;
+
+ uint64_t getBitMask(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::AttrVal Attr) const;
+ bool hasAttrSomewhere(Attribute::AttrKind Attr) const;
unsigned getNumAttrs() const;
Attribute &getAttributesAtIndex(unsigned i) const;
void dump() const;
};
-} // End llvm namespace
+} // end llvm namespace
#endif
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