1 //===-- CSKYMCExpr.h - CSKY 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 CSKYMCExpr : public MCTargetExpr { 18 public: 19 enum VariantKind { 20 VK_CSKY_None, 21 VK_CSKY_ADDR, 22 VK_CSKY_ADDR_HI16, 23 VK_CSKY_ADDR_LO16, 24 VK_CSKY_PCREL, 25 VK_CSKY_GOT, 26 VK_CSKY_GOT_IMM18_BY4, 27 VK_CSKY_GOTPC, 28 VK_CSKY_GOTOFF, 29 VK_CSKY_PLT, 30 VK_CSKY_PLT_IMM18_BY4, 31 VK_CSKY_TLSIE, 32 VK_CSKY_TLSLE, 33 VK_CSKY_TLSGD, 34 VK_CSKY_TLSLDO, 35 VK_CSKY_TLSLDM, 36 VK_CSKY_Invalid 37 }; 38 39 private: 40 const VariantKind Kind; 41 const MCExpr *Expr; 42 CSKYMCExpr(VariantKind Kind,const MCExpr * Expr)43 explicit CSKYMCExpr(VariantKind Kind, const MCExpr *Expr) 44 : Kind(Kind), Expr(Expr) {} 45 46 public: 47 static const CSKYMCExpr *create(const MCExpr *Expr, VariantKind Kind, 48 MCContext &Ctx); 49 50 // Returns the kind of this expression. getKind()51 VariantKind getKind() const { return Kind; } 52 53 // Returns the child of this expression. getSubExpr()54 const MCExpr *getSubExpr() const { return Expr; } 55 56 void printImpl(raw_ostream &OS, const MCAsmInfo *MAI) const override; 57 58 bool evaluateAsRelocatableImpl(MCValue &Res, const MCAssembler *Asm, 59 const MCFixup *Fixup) const override; 60 void visitUsedExpr(MCStreamer &Streamer) const override; 61 findAssociatedFragment()62 MCFragment *findAssociatedFragment() const override { 63 return getSubExpr()->findAssociatedFragment(); 64 } 65 66 void fixELFSymbolsInTLSFixups(MCAssembler &Asm) const override; 67 classof(const MCExpr * E)68 static bool classof(const MCExpr *E) { 69 return E->getKind() == MCExpr::Target; 70 } 71 72 static StringRef getVariantKindName(VariantKind Kind); 73 }; 74 } // end namespace llvm 75 76 #endif 77