mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-10-31 08:16:47 +00:00
d047a9df7d
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214843 91177308-0d34-0410-b5e6-96231b3b80d8
132 lines
4.5 KiB
C++
132 lines
4.5 KiB
C++
//===-- llvm/Argument.h - Definition of the Argument class ------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file declares the Argument class.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_IR_ARGUMENT_H
|
|
#define LLVM_IR_ARGUMENT_H
|
|
|
|
#include "llvm/ADT/Twine.h"
|
|
#include "llvm/ADT/ilist_node.h"
|
|
#include "llvm/IR/Attributes.h"
|
|
#include "llvm/IR/Value.h"
|
|
|
|
namespace llvm {
|
|
|
|
template<typename ValueSubClass, typename ItemParentClass>
|
|
class SymbolTableListTraits;
|
|
|
|
/// \brief LLVM Argument representation
|
|
///
|
|
/// This class represents an incoming formal argument to a Function. A formal
|
|
/// argument, since it is ``formal'', does not contain an actual value but
|
|
/// instead represents the type, argument number, and attributes of an argument
|
|
/// for a specific function. When used in the body of said function, the
|
|
/// argument of course represents the value of the actual argument that the
|
|
/// function was called with.
|
|
class Argument : public Value, public ilist_node<Argument> {
|
|
virtual void anchor();
|
|
Function *Parent;
|
|
|
|
friend class SymbolTableListTraits<Argument, Function>;
|
|
void setParent(Function *parent);
|
|
|
|
public:
|
|
/// \brief Constructor.
|
|
///
|
|
/// If \p F is specified, the argument is inserted at the end of the argument
|
|
/// list for \p F.
|
|
explicit Argument(Type *Ty, const Twine &Name = "", Function *F = nullptr);
|
|
|
|
inline const Function *getParent() const { return Parent; }
|
|
inline Function *getParent() { return Parent; }
|
|
|
|
/// \brief Return the index of this formal argument in its containing
|
|
/// function.
|
|
///
|
|
/// For example in "void foo(int a, float b)" a is 0 and b is 1.
|
|
unsigned getArgNo() const;
|
|
|
|
/// \brief Return true if this argument has the nonnull attribute on it in
|
|
/// its containing function. Also returns true if at least one byte is known
|
|
/// to be dereferenceable and the pointer is in addrspace(0).
|
|
bool hasNonNullAttr() const;
|
|
|
|
/// \brief If this argument has the dereferenceable attribute on it in its
|
|
/// containing function, return the number of bytes known to be
|
|
/// dereferenceable. Otherwise, zero is returned.
|
|
uint64_t getDereferenceableBytes() const;
|
|
|
|
/// \brief Return true if this argument has the byval attribute on it in its
|
|
/// containing function.
|
|
bool hasByValAttr() const;
|
|
|
|
/// \brief Return true if this argument has the byval attribute or inalloca
|
|
/// attribute on it in its containing function. These attributes both
|
|
/// represent arguments being passed by value.
|
|
bool hasByValOrInAllocaAttr() const;
|
|
|
|
/// \brief If this is a byval or inalloca argument, return its alignment.
|
|
unsigned getParamAlignment() const;
|
|
|
|
/// \brief Return true if this argument has the nest attribute on it in its
|
|
/// containing function.
|
|
bool hasNestAttr() const;
|
|
|
|
/// \brief Return true if this argument has the noalias attribute on it in its
|
|
/// containing function.
|
|
bool hasNoAliasAttr() const;
|
|
|
|
/// \brief Return true if this argument has the nocapture attribute on it in
|
|
/// its containing function.
|
|
bool hasNoCaptureAttr() const;
|
|
|
|
/// \brief Return true if this argument has the sret attribute on it in its
|
|
/// containing function.
|
|
bool hasStructRetAttr() const;
|
|
|
|
/// \brief Return true if this argument has the returned attribute on it in
|
|
/// its containing function.
|
|
bool hasReturnedAttr() const;
|
|
|
|
/// \brief Return true if this argument has the readonly or readnone attribute
|
|
/// on it in its containing function.
|
|
bool onlyReadsMemory() const;
|
|
|
|
/// \brief Return true if this argument has the inalloca attribute on it in
|
|
/// its containing function.
|
|
bool hasInAllocaAttr() const;
|
|
|
|
/// \brief Return true if this argument has the zext attribute on it in its
|
|
/// containing function.
|
|
bool hasZExtAttr() const;
|
|
|
|
/// \brief Return true if this argument has the sext attribute on it in its
|
|
/// containing function.
|
|
bool hasSExtAttr() const;
|
|
|
|
/// \brief Add a Attribute to an argument.
|
|
void addAttr(AttributeSet AS);
|
|
|
|
/// \brief Remove a Attribute from an argument.
|
|
void removeAttr(AttributeSet AS);
|
|
|
|
/// \brief Method for support type inquiry through isa, cast, and
|
|
/// dyn_cast.
|
|
static inline bool classof(const Value *V) {
|
|
return V->getValueID() == ArgumentVal;
|
|
}
|
|
};
|
|
|
|
} // End llvm namespace
|
|
|
|
#endif
|