1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
//===-- ARMMCExpr.h - ARM specific MC expression classes --------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_ARM_MCTARGETDESC_ARMMCEXPR_H
#define LLVM_LIB_TARGET_ARM_MCTARGETDESC_ARMMCEXPR_H
#include "llvm/MC/MCExpr.h"
namespace llvm {
class ARMMCExpr : public MCTargetExpr {
public:
enum VariantKind {
VK_ARM_None,
VK_ARM_HI16, // The R_ARM_MOVT_ABS relocation (:upper16: in the .s file)
VK_ARM_LO16 // The R_ARM_MOVW_ABS_NC relocation (:lower16: in the .s file)
};
private:
const VariantKind Kind;
const MCExpr *Expr;
explicit ARMMCExpr(VariantKind _Kind, const MCExpr *_Expr)
: Kind(_Kind), Expr(_Expr) {}
public:
/// @name Construction
/// @{
static const ARMMCExpr *Create(VariantKind Kind, const MCExpr *Expr,
MCContext &Ctx);
static const ARMMCExpr *CreateUpper16(const MCExpr *Expr, MCContext &Ctx) {
return Create(VK_ARM_HI16, Expr, Ctx);
}
static const ARMMCExpr *CreateLower16(const MCExpr *Expr, MCContext &Ctx) {
return Create(VK_ARM_LO16, Expr, Ctx);
}
/// @}
/// @name Accessors
/// @{
/// getOpcode - Get the kind of this expression.
VariantKind getKind() const { return Kind; }
/// getSubExpr - Get the child of this expression.
const MCExpr *getSubExpr() const { return Expr; }
/// @}
void PrintImpl(raw_ostream &OS) const override;
bool EvaluateAsRelocatableImpl(MCValue &Res,
const MCAsmLayout *Layout,
const MCFixup *Fixup) const override {
return false;
}
void visitUsedExpr(MCStreamer &Streamer) const override;
const MCSection *FindAssociatedSection() const override {
return getSubExpr()->FindAssociatedSection();
}
// There are no TLS ARMMCExprs at the moment.
void fixELFSymbolsInTLSFixups(MCAssembler &Asm) const override {}
static bool classof(const MCExpr *E) {
return E->getKind() == MCExpr::Target;
}
};
} // end namespace llvm
#endif
|
