1//===- MipsMCExpr.h - Mips specific MC expression classes -------*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#ifndef LLVM_LIB_TARGET_MIPS_MCTARGETDESC_MIPSMCEXPR_H
10#define LLVM_LIB_TARGET_MIPS_MCTARGETDESC_MIPSMCEXPR_H
11
12#include "llvm/MC/MCExpr.h"
13#include "llvm/MC/MCValue.h"
14
15namespace llvm {
16
17class MipsMCExpr : public MCTargetExpr {
18public:
19 enum MipsExprKind {
20 MEK_None,
21 MEK_CALL_HI16,
22 MEK_CALL_LO16,
23 MEK_DTPREL,
24 MEK_DTPREL_HI,
25 MEK_DTPREL_LO,
26 MEK_GOT,
27 MEK_GOTTPREL,
28 MEK_GOT_CALL,
29 MEK_GOT_DISP,
30 MEK_GOT_HI16,
31 MEK_GOT_LO16,
32 MEK_GOT_OFST,
33 MEK_GOT_PAGE,
34 MEK_GPREL,
35 MEK_HI,
36 MEK_HIGHER,
37 MEK_HIGHEST,
38 MEK_LO,
39 MEK_NEG,
40 MEK_PCREL_HI16,
41 MEK_PCREL_LO16,
42 MEK_TLSGD,
43 MEK_TLSLDM,
44 MEK_TPREL_HI,
45 MEK_TPREL_LO,
46 MEK_Special,
47 };
48
49private:
50 const MipsExprKind Kind;
51 const MCExpr *Expr;
52
53 explicit MipsMCExpr(MipsExprKind Kind, const MCExpr *Expr)
54 : Kind(Kind), Expr(Expr) {}
55
56public:
57 static const MipsMCExpr *create(MipsExprKind Kind, const MCExpr *Expr,
58 MCContext &Ctx);
59 static const MipsMCExpr *createGpOff(MipsExprKind Kind, const MCExpr *Expr,
60 MCContext &Ctx);
61
62 /// Get the kind of this expression.
63 MipsExprKind getKind() const { return Kind; }
64
65 /// Get the child of this expression.
66 const MCExpr *getSubExpr() const { return Expr; }
67
68 void printImpl(raw_ostream &OS, const MCAsmInfo *MAI) const override;
69 bool evaluateAsRelocatableImpl(MCValue &Res, const MCAssembler *Asm,
70 const MCFixup *Fixup) const override;
71 void visitUsedExpr(MCStreamer &Streamer) const override;
72
73 MCFragment *findAssociatedFragment() const override {
74 return getSubExpr()->findAssociatedFragment();
75 }
76
77 void fixELFSymbolsInTLSFixups(MCAssembler &Asm) const override;
78
79 static bool classof(const MCExpr *E) {
80 return E->getKind() == MCExpr::Target;
81 }
82
83 bool isGpOff(MipsExprKind &Kind) const;
84 bool isGpOff() const {
85 MipsExprKind Kind;
86 return isGpOff(Kind);
87 }
88};
89
90} // end namespace llvm
91
92#endif // LLVM_LIB_TARGET_MIPS_MCTARGETDESC_MIPSMCEXPR_H
93