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_CODEGEN_SDNODEDBGVALUE_H
15 #define LLVM_CODEGEN_SDNODEDBGVALUE_H
17 #include "llvm/ADT/SmallVector.h"
18 #include "llvm/Support/DebugLoc.h"
19 #include "llvm/System/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 Value *Const; // valid for constants
45 unsigned FrameIx; // valid for stack objects
53 // Constructor for non-constants.
54 SDDbgValue(MDNode *mdP, SDNode *N, unsigned R, uint64_t off, DebugLoc dl,
55 unsigned O) : mdPtr(mdP), Offset(off), DL(dl), Order(O),
62 // Constructor for constants.
63 SDDbgValue(MDNode *mdP, Value *C, uint64_t off, DebugLoc dl, unsigned O) :
64 mdPtr(mdP), Offset(off), DL(dl), Order(O), Invalid(false) {
69 // Constructor for frame indices.
70 SDDbgValue(MDNode *mdP, unsigned FI, uint64_t off, DebugLoc dl, unsigned O) :
71 mdPtr(mdP), Offset(off), DL(dl), Order(O), Invalid(false) {
77 DbgValueKind getKind() { return kind; }
79 // Returns the MDNode pointer.
80 MDNode *getMDPtr() { return mdPtr; }
82 // Returns the SDNode* for a register ref
83 SDNode *getSDNode() { assert (kind==SDNODE); return u.s.Node; }
85 // Returns the ResNo for a register ref
86 unsigned getResNo() { assert (kind==SDNODE); return u.s.ResNo; }
88 // Returns the Value* for a constant
89 Value *getConst() { assert (kind==CONST); return u.Const; }
91 // Returns the FrameIx for a stack object
92 unsigned getFrameIx() { assert (kind==FRAMEIX); return u.FrameIx; }
94 // Returns the offset.
95 uint64_t getOffset() { return Offset; }
97 // Returns the DebugLoc.
98 DebugLoc getDebugLoc() { return DL; }
100 // Returns the SDNodeOrder. This is the order of the preceding node in the
102 unsigned getOrder() { return Order; }
104 // setIsInvalidated / isInvalidated - Setter / getter of the "Invalidated"
105 // property. A SDDbgValue is invalid if the SDNode that produces the value is
107 void setIsInvalidated() { Invalid = true; }
108 bool isInvalidated() { return Invalid; }
111 } // end llvm namespace