diff options
Diffstat (limited to 'lib/Target/Mips/MCTargetDesc/MipsMCCodeEmitter.cpp')
-rw-r--r-- | lib/Target/Mips/MCTargetDesc/MipsMCCodeEmitter.cpp | 128 |
1 files changed, 63 insertions, 65 deletions
diff --git a/lib/Target/Mips/MCTargetDesc/MipsMCCodeEmitter.cpp b/lib/Target/Mips/MCTargetDesc/MipsMCCodeEmitter.cpp index 9ebb6d2..27954b1 100644 --- a/lib/Target/Mips/MCTargetDesc/MipsMCCodeEmitter.cpp +++ b/lib/Target/Mips/MCTargetDesc/MipsMCCodeEmitter.cpp @@ -179,73 +179,71 @@ getMachineOpValue(const MCInst &MI, const MCOperand &MO, } else if (MO.isFPImm()) { return static_cast<unsigned>(APFloat(MO.getFPImm()) .bitcastToAPInt().getHiBits(32).getLimitedValue()); - } else if (MO.isExpr()) { - const MCExpr *Expr = MO.getExpr(); - MCExpr::ExprKind Kind = Expr->getKind(); - unsigned Ret = 0; - - if (Kind == MCExpr::Binary) { - const MCBinaryExpr *BE = static_cast<const MCBinaryExpr*>(Expr); - Expr = BE->getLHS(); - Kind = Expr->getKind(); - const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(BE->getRHS()); - assert((Kind == MCExpr::SymbolRef) && CE && - "Binary expression must be sym+const."); - Ret = CE->getValue(); - } + } + + // MO must be an Expr. + assert(MO.isExpr()); + + const MCExpr *Expr = MO.getExpr(); + MCExpr::ExprKind Kind = Expr->getKind(); - if (Kind == MCExpr::SymbolRef) { - Mips::Fixups FixupKind; - - switch(cast<MCSymbolRefExpr>(Expr)->getKind()) { - case MCSymbolRefExpr::VK_Mips_GPREL: - FixupKind = Mips::fixup_Mips_GPREL16; - break; - case MCSymbolRefExpr::VK_Mips_GOT_CALL: - FixupKind = Mips::fixup_Mips_CALL16; - break; - case MCSymbolRefExpr::VK_Mips_GOT16: - FixupKind = Mips::fixup_Mips_GOT_Global; - break; - case MCSymbolRefExpr::VK_Mips_GOT: - FixupKind = Mips::fixup_Mips_GOT_Local; - break; - case MCSymbolRefExpr::VK_Mips_ABS_HI: - FixupKind = Mips::fixup_Mips_HI16; - break; - case MCSymbolRefExpr::VK_Mips_ABS_LO: - FixupKind = Mips::fixup_Mips_LO16; - break; - case MCSymbolRefExpr::VK_Mips_TLSGD: - FixupKind = Mips::fixup_Mips_TLSGD; - break; - case MCSymbolRefExpr::VK_Mips_TLSLDM: - FixupKind = Mips::fixup_Mips_TLSLDM; - break; - case MCSymbolRefExpr::VK_Mips_DTPREL_HI: - FixupKind = Mips::fixup_Mips_DTPREL_HI; - break; - case MCSymbolRefExpr::VK_Mips_DTPREL_LO: - FixupKind = Mips::fixup_Mips_DTPREL_LO; - break; - case MCSymbolRefExpr::VK_Mips_GOTTPREL: - FixupKind = Mips::fixup_Mips_GOTTPREL; - break; - case MCSymbolRefExpr::VK_Mips_TPREL_HI: - FixupKind = Mips::fixup_Mips_TPREL_HI; - break; - case MCSymbolRefExpr::VK_Mips_TPREL_LO: - FixupKind = Mips::fixup_Mips_TPREL_LO; - break; - default: - return Ret; - } // switch - Fixups.push_back(MCFixup::Create(0, Expr, MCFixupKind(FixupKind))); - } // if SymbolRef - // All of the information is in the fixup. - return Ret; + if (Kind == MCExpr::Binary) { + Expr = static_cast<const MCBinaryExpr*>(Expr)->getLHS(); + Kind = Expr->getKind(); } - llvm_unreachable("Unable to encode MCOperand!"); + + assert (Kind == MCExpr::SymbolRef); + + Mips::Fixups FixupKind; + + switch(cast<MCSymbolRefExpr>(Expr)->getKind()) { + case MCSymbolRefExpr::VK_Mips_GPREL: + FixupKind = Mips::fixup_Mips_GPREL16; + break; + case MCSymbolRefExpr::VK_Mips_GOT_CALL: + FixupKind = Mips::fixup_Mips_CALL16; + break; + case MCSymbolRefExpr::VK_Mips_GOT16: + FixupKind = Mips::fixup_Mips_GOT_Global; + break; + case MCSymbolRefExpr::VK_Mips_GOT: + FixupKind = Mips::fixup_Mips_GOT_Local; + break; + case MCSymbolRefExpr::VK_Mips_ABS_HI: + FixupKind = Mips::fixup_Mips_HI16; + break; + case MCSymbolRefExpr::VK_Mips_ABS_LO: + FixupKind = Mips::fixup_Mips_LO16; + break; + case MCSymbolRefExpr::VK_Mips_TLSGD: + FixupKind = Mips::fixup_Mips_TLSGD; + break; + case MCSymbolRefExpr::VK_Mips_TLSLDM: + FixupKind = Mips::fixup_Mips_TLSLDM; + break; + case MCSymbolRefExpr::VK_Mips_DTPREL_HI: + FixupKind = Mips::fixup_Mips_DTPREL_HI; + break; + case MCSymbolRefExpr::VK_Mips_DTPREL_LO: + FixupKind = Mips::fixup_Mips_DTPREL_LO; + break; + case MCSymbolRefExpr::VK_Mips_GOTTPREL: + FixupKind = Mips::fixup_Mips_GOTTPREL; + break; + case MCSymbolRefExpr::VK_Mips_TPREL_HI: + FixupKind = Mips::fixup_Mips_TPREL_HI; + break; + case MCSymbolRefExpr::VK_Mips_TPREL_LO: + FixupKind = Mips::fixup_Mips_TPREL_LO; + break; + default: + break; + } // switch + + Fixups.push_back(MCFixup::Create(0, MO.getExpr(), MCFixupKind(FixupKind))); + + // All of the information is in the fixup. + return 0; } /// getMemEncoding - Return binary encoding of memory related operand. |