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//===-- llvm/CodeGen/SDDbgValue.h - SD dbg_value handling--------*- 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 SDDbgValue class.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CODEGEN_SDDBGVALUE_H
#define LLVM_CODEGEN_SDDBGVALUE_H
#include "llvm/ADT/SmallVector.h"
#include "llvm/Support/DebugLoc.h"
namespace llvm {
class MDNode;
class SDNode;
class Value;
/// SDDbgValue - Holds the information from a dbg_value node through SDISel.
/// Either Const or Node is nonzero, but not both.
/// We do not use SDValue here to avoid including its header.
class SDDbgValue {
SDNode *Node; // valid for non-constants
unsigned ResNo; // valid for non-constants
Value *Const; // valid for constants
MDNode *mdPtr;
uint64_t Offset;
DebugLoc DL;
public:
// Constructor for non-constants.
SDDbgValue(MDNode *mdP, SDNode *N, unsigned R, uint64_t off, DebugLoc dl) :
Node(N), ResNo(R), Const(0), mdPtr(mdP), Offset(off), DL(dl) {}
// Constructor for constants.
SDDbgValue(MDNode *mdP, Value *C, uint64_t off, DebugLoc dl) : Node(0),
ResNo(0), Const(C), mdPtr(mdP), Offset(off), DL(dl) {}
// Returns the MDNode pointer.
MDNode *getMDPtr() { return mdPtr; }
// Returns the SDNode* (valid for non-constants only).
SDNode *getSDNode() { assert (!Const); return Node; }
// Returns the ResNo (valid for non-constants only).
unsigned getResNo() { assert (!Const); return ResNo; }
// Returns the Value* for a constant (invalid for non-constants).
Value *getConst() { assert (!Node); return Const; }
// Returns the offset.
uint64_t getOffset() { return Offset; }
// Returns the DebugLoc.
DebugLoc getDebugLoc() { return DL; }
};
} // end llvm namespace
#endif
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