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1 //===-- LanaiMCExpr.h - Lanai specific MC expression classes ----*- C++ -*-===//
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2 //
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3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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4 // See https://llvm.org/LICENSE.txt for license information.
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5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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120
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6 //
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7 //===----------------------------------------------------------------------===//
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8
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9 #ifndef LLVM_LIB_TARGET_LANAI_MCTARGETDESC_LANAIMCEXPR_H
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10 #define LLVM_LIB_TARGET_LANAI_MCTARGETDESC_LANAIMCEXPR_H
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11
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12 #include "llvm/MC/MCExpr.h"
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13 #include "llvm/MC/MCValue.h"
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14
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15 namespace llvm {
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16
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17 class LanaiMCExpr : public MCTargetExpr {
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18 public:
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19 enum VariantKind { VK_Lanai_None, VK_Lanai_ABS_HI, VK_Lanai_ABS_LO };
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20
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21 private:
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22 const VariantKind Kind;
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23 const MCExpr *Expr;
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24
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25 explicit LanaiMCExpr(VariantKind Kind, const MCExpr *Expr)
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26 : Kind(Kind), Expr(Expr) {}
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27
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28 public:
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29 static const LanaiMCExpr *create(VariantKind Kind, const MCExpr *Expr,
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30 MCContext &Ctx);
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31
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32 // Returns the kind of this expression.
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33 VariantKind getKind() const { return Kind; }
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34
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35 // Returns the child of this expression.
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36 const MCExpr *getSubExpr() const { return Expr; }
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37
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38 void printImpl(raw_ostream &OS, const MCAsmInfo *MAI) const override;
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39 bool evaluateAsRelocatableImpl(MCValue &Res, const MCAsmLayout *Layout,
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40 const MCFixup *Fixup) const override;
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41 void visitUsedExpr(MCStreamer &Streamer) const override;
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42 MCFragment *findAssociatedFragment() const override {
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43 return getSubExpr()->findAssociatedFragment();
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44 }
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45
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46 // There are no TLS LanaiMCExprs at the moment.
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47 void fixELFSymbolsInTLSFixups(MCAssembler & /*Asm*/) const override {}
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48
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49 static bool classof(const MCExpr *E) {
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50 return E->getKind() == MCExpr::Target;
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51 }
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52 };
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53 } // end namespace llvm
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54
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55 #endif
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