1//===-- llvm/MC/MCValue.h - MCValue class -----------------------*- C++ -*-===//
2//
3// The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// This file contains the declaration of the MCValue class.
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef LLVM_MC_MCVALUE_H
15#define LLVM_MC_MCVALUE_H
16
17#include "llvm/Support/DataTypes.h"
| 1//===-- llvm/MC/MCValue.h - MCValue class -----------------------*- C++ -*-===//
2//
3// The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// This file contains the declaration of the MCValue class.
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef LLVM_MC_MCVALUE_H
15#define LLVM_MC_MCVALUE_H
16
17#include "llvm/Support/DataTypes.h"
|
| 18#include "llvm/MC/MCSymbol.h"
19#include <cassert>
|
18
19namespace llvm {
20class MCSymbol;
21
22/// MCValue - This represents an "assembler immediate". In its most general
23/// form, this can hold "SymbolA - SymbolB + imm64". Not all targets supports
24/// relocations of this general form, but we need to represent this anyway.
25///
| 20
21namespace llvm {
22class MCSymbol;
23
24/// MCValue - This represents an "assembler immediate". In its most general
25/// form, this can hold "SymbolA - SymbolB + imm64". Not all targets supports
26/// relocations of this general form, but we need to represent this anyway.
27///
|
| 28/// In the general form, SymbolB can only be defined if SymbolA is, and both
29/// must be in the same (non-external) section. The latter constraint is not
30/// enforced, since a symbol's section may not be known at construction.
31///
|
26/// Note that this class must remain a simple POD value class, because we need
27/// it to live in unions etc.
28class MCValue {
29 MCSymbol *SymA, *SymB;
30 int64_t Cst;
31public:
32
| 32/// Note that this class must remain a simple POD value class, because we need
33/// it to live in unions etc.
34class MCValue {
35 MCSymbol *SymA, *SymB;
36 int64_t Cst;
37public:
38
|
33 int64_t getCst() const { return Cst; }
| 39 int64_t getConstant() const { return Cst; }
|
34 MCSymbol *getSymA() const { return SymA; }
35 MCSymbol *getSymB() const { return SymB; }
| 40 MCSymbol *getSymA() const { return SymA; }
41 MCSymbol *getSymB() const { return SymB; }
|
36
37
| 42
43 /// isAbsolute - Is this an absolute (as opposed to relocatable) value.
44 bool isAbsolute() const { return !SymA && !SymB; }
45
46 /// getAssociatedSection - For relocatable values, return the section the
47 /// value is associated with.
48 ///
49 /// @result - The value's associated section, or null for external or constant
50 /// values.
51 MCSection *getAssociatedSection() const {
52 return SymA ? SymA->getSection() : 0;
53 }
54
|
38 static MCValue get(MCSymbol *SymA, MCSymbol *SymB = 0, int64_t Val = 0) {
39 MCValue R;
| 55 static MCValue get(MCSymbol *SymA, MCSymbol *SymB = 0, int64_t Val = 0) {
56 MCValue R;
|
| 57 assert((!SymB || SymA) && "Invalid relocatable MCValue!");
|
40 R.Cst = Val;
41 R.SymA = SymA;
42 R.SymB = SymB;
43 return R;
44 }
45
46 static MCValue get(int64_t Val) {
47 MCValue R;
48 R.Cst = Val;
49 R.SymA = 0;
50 R.SymB = 0;
51 return R;
52 }
53
54};
55
56} // end namespace llvm
57
58#endif
| 58 R.Cst = Val;
59 R.SymA = SymA;
60 R.SymB = SymB;
61 return R;
62 }
63
64 static MCValue get(int64_t Val) {
65 MCValue R;
66 R.Cst = Val;
67 R.SymA = 0;
68 R.SymB = 0;
69 return R;
70 }
71
72};
73
74} // end namespace llvm
75
76#endif
|