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 15 namespace llvm { 16 17 class LanaiMCExpr : public MCTargetExpr { 18 public: 19 enum VariantKind { VK_Lanai_None, VK_Lanai_ABS_HI, VK_Lanai_ABS_LO }; 20 21 private: 22 const VariantKind Kind; 23 const MCExpr *Expr; 24 25 explicit LanaiMCExpr(VariantKind Kind, const MCExpr *Expr) 26 : Kind(Kind), Expr(Expr) {} 27 28 public: 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 MCAssembler *Asm, 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