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//===-- llvm/CodeGen/PseudoSourceValue.h ------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains the declaration of the PseudoSourceValue class.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CODEGEN_PSEUDOSOURCEVALUE_H
#define LLVM_CODEGEN_PSEUDOSOURCEVALUE_H
#include "llvm/Value.h"
namespace llvm {
class MachineFrameInfo;
class raw_ostream;
/// PseudoSourceValue - Special value supplied for machine level alias
/// analysis. It indicates that the a memory access references the functions
/// stack frame (e.g., a spill slot), below the stack frame (e.g., argument
/// space), or constant pool.
class PseudoSourceValue : public Value {
private:
/// printCustom - Implement printing for PseudoSourceValue. This is called
/// from Value::print or Value's operator<<.
///
virtual void printCustom(raw_ostream &O) const;
public:
PseudoSourceValue();
/// isConstant - Test whether this PseudoSourceValue has a constant value.
///
virtual bool isConstant(const MachineFrameInfo *) const;
/// classof - Methods for support type inquiry through isa, cast, and
/// dyn_cast:
///
static inline bool classof(const PseudoSourceValue *) { return true; }
static inline bool classof(const Value *V) {
return V->getValueID() == PseudoSourceValueVal;
}
/// A pseudo source value referencing a fixed stack frame entry,
/// e.g., a spill slot.
static const PseudoSourceValue *getFixedStack(int FI);
/// A source value referencing the area below the stack frame of a function,
/// e.g., the argument space.
static const PseudoSourceValue *getStack();
/// A source value referencing the global offset table (or something the
/// like).
static const PseudoSourceValue *getGOT();
/// A SV referencing the constant pool
static const PseudoSourceValue *getConstantPool();
/// A SV referencing the jump table
static const PseudoSourceValue *getJumpTable();
};
} // End llvm namespace
#endif
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