1 //===-- llvm/CodeGen/SDNodeDbgValue.h - SelectionDAG dbg_value --*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file declares the SDDbgValue class.
12 //===----------------------------------------------------------------------===//
14 #ifndef LLVM_LIB_CODEGEN_SELECTIONDAG_SDNODEDBGVALUE_H
15 #define LLVM_LIB_CODEGEN_SELECTIONDAG_SDNODEDBGVALUE_H
17 #include "llvm/ADT/SmallVector.h"
18 #include "llvm/IR/DebugLoc.h"
19 #include "llvm/Support/DataTypes.h"
27 /// SDDbgValue - Holds the information from a dbg_value node through SDISel.
28 /// We do not use SDValue here to avoid including its header.
33 SDNODE = 0, // value is the result of an expression
34 CONST = 1, // value is a constant
35 FRAMEIX = 2 // value is contents of a stack location
38 enum DbgValueKind kind;
41 SDNode *Node; // valid for expressions
42 unsigned ResNo; // valid for expressions
44 const Value *Const; // valid for constants
45 unsigned FrameIx; // valid for stack objects
55 // Constructor for non-constants.
56 SDDbgValue(MDNode *Var, MDNode *Expr, SDNode *N, unsigned R, bool indir,
57 uint64_t off, DebugLoc dl, unsigned O)
58 : Var(Var), Expr(Expr), IsIndirect(indir), Offset(off), DL(dl), Order(O),
65 // Constructor for constants.
66 SDDbgValue(MDNode *Var, MDNode *Expr, const Value *C, uint64_t off,
67 DebugLoc dl, unsigned O)
68 : Var(Var), Expr(Expr), IsIndirect(false), Offset(off), DL(dl), Order(O),
74 // Constructor for frame indices.
75 SDDbgValue(MDNode *Var, MDNode *Expr, unsigned FI, uint64_t off, DebugLoc dl,
77 : Var(Var), Expr(Expr), IsIndirect(false), Offset(off), DL(dl), Order(O),
84 DbgValueKind getKind() const { return kind; }
86 // Returns the MDNode pointer for the variable.
87 MDNode *getVariable() const { return Var; }
89 // Returns the MDNode pointer for the expression.
90 MDNode *getExpression() const { return Expr; }
92 // Returns the SDNode* for a register ref
93 SDNode *getSDNode() const { assert (kind==SDNODE); return u.s.Node; }
95 // Returns the ResNo for a register ref
96 unsigned getResNo() const { assert (kind==SDNODE); return u.s.ResNo; }
98 // Returns the Value* for a constant
99 const Value *getConst() const { assert (kind==CONST); return u.Const; }
101 // Returns the FrameIx for a stack object
102 unsigned getFrameIx() const { assert (kind==FRAMEIX); return u.FrameIx; }
104 // Returns whether this is an indirect value.
105 bool isIndirect() const { return IsIndirect; }
107 // Returns the offset.
108 uint64_t getOffset() const { return Offset; }
110 // Returns the DebugLoc.
111 DebugLoc getDebugLoc() const { return DL; }
113 // Returns the SDNodeOrder. This is the order of the preceding node in the
115 unsigned getOrder() const { return Order; }
117 // setIsInvalidated / isInvalidated - Setter / getter of the "Invalidated"
118 // property. A SDDbgValue is invalid if the SDNode that produces the value is
120 void setIsInvalidated() { Invalid = true; }
121 bool isInvalidated() const { return Invalid; }
124 } // end llvm namespace