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 15 namespace llvm { 16 17 class MipsMCExpr : public MCTargetExpr { 18 public: 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 49 private: 50 const MipsExprKind Kind; 51 const MCExpr *Expr; 52 MipsMCExpr(MipsExprKind Kind,const MCExpr * Expr)53 explicit MipsMCExpr(MipsExprKind Kind, const MCExpr *Expr) 54 : Kind(Kind), Expr(Expr) {} 55 56 public: 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. getKind()63 MipsExprKind getKind() const { return Kind; } 64 65 /// Get the child of this expression. getSubExpr()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 findAssociatedFragment()73 MCFragment *findAssociatedFragment() const override { 74 return getSubExpr()->findAssociatedFragment(); 75 } 76 77 void fixELFSymbolsInTLSFixups(MCAssembler &Asm) const override; 78 classof(const MCExpr * E)79 static bool classof(const MCExpr *E) { 80 return E->getKind() == MCExpr::Target; 81 } 82 83 bool isGpOff(MipsExprKind &Kind) const; isGpOff()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