llvm-6502/lib/CodeGen/SelectionDAG/SDNodeDbgValue.h
Benjamin Kramer 55c06ae7af Revert "Give internal classes hidden visibility."
It works with clang, but GCC has different rules so we can't make all of those
hidden. This reverts commit r190534.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190536 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-11 18:05:11 +00:00

115 lines
3.3 KiB
C++

//===-- llvm/CodeGen/SDNodeDbgValue.h - SelectionDAG dbg_value --*- 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_SDNODEDBGVALUE_H
#define LLVM_CODEGEN_SDNODEDBGVALUE_H
#include "llvm/ADT/SmallVector.h"
#include "llvm/Support/DataTypes.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.
/// We do not use SDValue here to avoid including its header.
class SDDbgValue {
public:
enum DbgValueKind {
SDNODE = 0, // value is the result of an expression
CONST = 1, // value is a constant
FRAMEIX = 2 // value is contents of a stack location
};
private:
enum DbgValueKind kind;
union {
struct {
SDNode *Node; // valid for expressions
unsigned ResNo; // valid for expressions
} s;
const Value *Const; // valid for constants
unsigned FrameIx; // valid for stack objects
} u;
MDNode *mdPtr;
uint64_t Offset;
DebugLoc DL;
unsigned Order;
bool Invalid;
public:
// Constructor for non-constants.
SDDbgValue(MDNode *mdP, SDNode *N, unsigned R, uint64_t off, DebugLoc dl,
unsigned O) : mdPtr(mdP), Offset(off), DL(dl), Order(O),
Invalid(false) {
kind = SDNODE;
u.s.Node = N;
u.s.ResNo = R;
}
// Constructor for constants.
SDDbgValue(MDNode *mdP, const Value *C, uint64_t off, DebugLoc dl,
unsigned O) :
mdPtr(mdP), Offset(off), DL(dl), Order(O), Invalid(false) {
kind = CONST;
u.Const = C;
}
// Constructor for frame indices.
SDDbgValue(MDNode *mdP, unsigned FI, uint64_t off, DebugLoc dl, unsigned O) :
mdPtr(mdP), Offset(off), DL(dl), Order(O), Invalid(false) {
kind = FRAMEIX;
u.FrameIx = FI;
}
// Returns the kind.
DbgValueKind getKind() { return kind; }
// Returns the MDNode pointer.
MDNode *getMDPtr() { return mdPtr; }
// Returns the SDNode* for a register ref
SDNode *getSDNode() { assert (kind==SDNODE); return u.s.Node; }
// Returns the ResNo for a register ref
unsigned getResNo() { assert (kind==SDNODE); return u.s.ResNo; }
// Returns the Value* for a constant
const Value *getConst() { assert (kind==CONST); return u.Const; }
// Returns the FrameIx for a stack object
unsigned getFrameIx() { assert (kind==FRAMEIX); return u.FrameIx; }
// Returns the offset.
uint64_t getOffset() { return Offset; }
// Returns the DebugLoc.
DebugLoc getDebugLoc() { return DL; }
// Returns the SDNodeOrder. This is the order of the preceding node in the
// input.
unsigned getOrder() { return Order; }
// setIsInvalidated / isInvalidated - Setter / getter of the "Invalidated"
// property. A SDDbgValue is invalid if the SDNode that produces the value is
// deleted.
void setIsInvalidated() { Invalid = true; }
bool isInvalidated() { return Invalid; }
};
} // end llvm namespace
#endif