1//===-- LanaiMCExpr.h - Lanai 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_LANAI_MCTARGETDESC_LANAIMCEXPR_H
10#define LLVM_LIB_TARGET_LANAI_MCTARGETDESC_LANAIMCEXPR_H
11
12#include "llvm/MC/MCExpr.h"
13#include "llvm/MC/MCValue.h"
14
15namespace llvm {
16
17class LanaiMCExpr : public MCTargetExpr {
18public:
19  enum VariantKind { VK_Lanai_None, VK_Lanai_ABS_HI, VK_Lanai_ABS_LO };
20
21private:
22  const VariantKind Kind;
23  const MCExpr *Expr;
24
25  explicit LanaiMCExpr(VariantKind Kind, const MCExpr *Expr)
26      : Kind(Kind), Expr(Expr) {}
27
28public:
29  static const LanaiMCExpr *create(VariantKind Kind, const MCExpr *Expr,
30                                   MCContext &Ctx);
31
32  // Returns the kind of this expression.
33  VariantKind getKind() const { return Kind; }
34
35  // Returns the child of this expression.
36  const MCExpr *getSubExpr() const { return Expr; }
37
38  void printImpl(raw_ostream &OS, const MCAsmInfo *MAI) const override;
39  bool evaluateAsRelocatableImpl(MCValue &Res, const MCAsmLayout *Layout,
40                                 const MCFixup *Fixup) const override;
41  void visitUsedExpr(MCStreamer &Streamer) const override;
42  MCFragment *findAssociatedFragment() const override {
43    return getSubExpr()->findAssociatedFragment();
44  }
45
46  // There are no TLS LanaiMCExprs at the moment.
47  void fixELFSymbolsInTLSFixups(MCAssembler & /*Asm*/) const override {}
48
49  static bool classof(const MCExpr *E) {
50    return E->getKind() == MCExpr::Target;
51  }
52};
53} // end namespace llvm
54
55#endif
56