+unsigned MipsMCCodeEmitter::
+getJumpTargetOpValueMM(const MCInst &MI, unsigned OpNo,
+ SmallVectorImpl<MCFixup> &Fixups) const {
+
+ const MCOperand &MO = MI.getOperand(OpNo);
+ // If the destination is an immediate, divide by 2.
+ if (MO.isImm()) return MO.getImm() >> 1;
+
+ assert(MO.isExpr() &&
+ "getJumpTargetOpValueMM expects only expressions or an immediate");
+
+ const MCExpr *Expr = MO.getExpr();
+ Fixups.push_back(MCFixup::Create(0, Expr,
+ MCFixupKind(Mips::fixup_MICROMIPS_26_S1)));
+ return 0;
+}
+
+unsigned MipsMCCodeEmitter::
+getExprOpValue(const MCExpr *Expr,SmallVectorImpl<MCFixup> &Fixups) const {
+ int64_t Res;
+
+ if (Expr->EvaluateAsAbsolute(Res))
+ return Res;
+
+ MCExpr::ExprKind Kind = Expr->getKind();
+ if (Kind == MCExpr::Constant) {
+ return cast<MCConstantExpr>(Expr)->getValue();
+ }
+
+ if (Kind == MCExpr::Binary) {
+ unsigned Res = getExprOpValue(cast<MCBinaryExpr>(Expr)->getLHS(), Fixups);
+ Res += getExprOpValue(cast<MCBinaryExpr>(Expr)->getRHS(), Fixups);
+ return Res;
+ }
+ if (Kind == MCExpr::SymbolRef) {
+ Mips::Fixups FixupKind = Mips::Fixups(0);
+
+ switch(cast<MCSymbolRefExpr>(Expr)->getKind()) {
+ default: llvm_unreachable("Unknown fixup kind!");
+ break;
+ case MCSymbolRefExpr::VK_Mips_GPOFF_HI :
+ FixupKind = Mips::fixup_Mips_GPOFF_HI;
+ break;
+ case MCSymbolRefExpr::VK_Mips_GPOFF_LO :
+ FixupKind = Mips::fixup_Mips_GPOFF_LO;
+ break;
+ case MCSymbolRefExpr::VK_Mips_GOT_PAGE :
+ FixupKind = IsMicroMips ? Mips::fixup_MICROMIPS_GOT_PAGE
+ : Mips::fixup_Mips_GOT_PAGE;
+ break;
+ case MCSymbolRefExpr::VK_Mips_GOT_OFST :
+ FixupKind = IsMicroMips ? Mips::fixup_MICROMIPS_GOT_OFST
+ : Mips::fixup_Mips_GOT_OFST;
+ break;
+ case MCSymbolRefExpr::VK_Mips_GOT_DISP :
+ FixupKind = IsMicroMips ? Mips::fixup_MICROMIPS_GOT_DISP
+ : Mips::fixup_Mips_GOT_DISP;
+ break;
+ case MCSymbolRefExpr::VK_Mips_GPREL:
+ FixupKind = Mips::fixup_Mips_GPREL16;
+ break;
+ case MCSymbolRefExpr::VK_Mips_GOT_CALL:
+ FixupKind = IsMicroMips ? Mips::fixup_MICROMIPS_CALL16
+ : Mips::fixup_Mips_CALL16;
+ break;
+ case MCSymbolRefExpr::VK_Mips_GOT16:
+ FixupKind = IsMicroMips ? Mips::fixup_MICROMIPS_GOT16
+ : Mips::fixup_Mips_GOT_Global;
+ break;
+ case MCSymbolRefExpr::VK_Mips_GOT:
+ FixupKind = IsMicroMips ? Mips::fixup_MICROMIPS_GOT16
+ : Mips::fixup_Mips_GOT_Local;
+ break;
+ case MCSymbolRefExpr::VK_Mips_ABS_HI:
+ FixupKind = IsMicroMips ? Mips::fixup_MICROMIPS_HI16
+ : Mips::fixup_Mips_HI16;
+ break;
+ case MCSymbolRefExpr::VK_Mips_ABS_LO:
+ FixupKind = IsMicroMips ? Mips::fixup_MICROMIPS_LO16
+ : Mips::fixup_Mips_LO16;
+ break;
+ case MCSymbolRefExpr::VK_Mips_TLSGD:
+ FixupKind = IsMicroMips ? Mips::fixup_MICROMIPS_TLS_GD
+ : Mips::fixup_Mips_TLSGD;
+ break;
+ case MCSymbolRefExpr::VK_Mips_TLSLDM:
+ FixupKind = IsMicroMips ? Mips::fixup_MICROMIPS_TLS_LDM
+ : Mips::fixup_Mips_TLSLDM;
+ break;
+ case MCSymbolRefExpr::VK_Mips_DTPREL_HI:
+ FixupKind = IsMicroMips ? Mips::fixup_MICROMIPS_TLS_DTPREL_HI16
+ : Mips::fixup_Mips_DTPREL_HI;
+ break;
+ case MCSymbolRefExpr::VK_Mips_DTPREL_LO:
+ FixupKind = IsMicroMips ? Mips::fixup_MICROMIPS_TLS_DTPREL_LO16
+ : Mips::fixup_Mips_DTPREL_LO;
+ break;
+ case MCSymbolRefExpr::VK_Mips_GOTTPREL:
+ FixupKind = Mips::fixup_Mips_GOTTPREL;
+ break;
+ case MCSymbolRefExpr::VK_Mips_TPREL_HI:
+ FixupKind = IsMicroMips ? Mips::fixup_MICROMIPS_TLS_TPREL_HI16
+ : Mips::fixup_Mips_TPREL_HI;
+ break;
+ case MCSymbolRefExpr::VK_Mips_TPREL_LO:
+ FixupKind = IsMicroMips ? Mips::fixup_MICROMIPS_TLS_TPREL_LO16
+ : Mips::fixup_Mips_TPREL_LO;
+ break;
+ case MCSymbolRefExpr::VK_Mips_HIGHER:
+ FixupKind = Mips::fixup_Mips_HIGHER;
+ break;
+ case MCSymbolRefExpr::VK_Mips_HIGHEST:
+ FixupKind = Mips::fixup_Mips_HIGHEST;
+ break;
+ case MCSymbolRefExpr::VK_Mips_GOT_HI16:
+ FixupKind = Mips::fixup_Mips_GOT_HI16;
+ break;
+ case MCSymbolRefExpr::VK_Mips_GOT_LO16:
+ FixupKind = Mips::fixup_Mips_GOT_LO16;
+ break;
+ case MCSymbolRefExpr::VK_Mips_CALL_HI16:
+ FixupKind = Mips::fixup_Mips_CALL_HI16;
+ break;
+ case MCSymbolRefExpr::VK_Mips_CALL_LO16:
+ FixupKind = Mips::fixup_Mips_CALL_LO16;
+ break;
+ } // switch
+
+ Fixups.push_back(MCFixup::Create(0, Expr, MCFixupKind(FixupKind)));
+ return 0;
+ }
+ return 0;
+}
+