diff options
Diffstat (limited to 'llvm/lib/Target/Mips/MipsMCInstLower.cpp')
| -rw-r--r-- | llvm/lib/Target/Mips/MipsMCInstLower.cpp | 155 |
1 files changed, 98 insertions, 57 deletions
diff --git a/llvm/lib/Target/Mips/MipsMCInstLower.cpp b/llvm/lib/Target/Mips/MipsMCInstLower.cpp index 80d9b75b85b..d5bc4e537c3 100644 --- a/llvm/lib/Target/Mips/MipsMCInstLower.cpp +++ b/llvm/lib/Target/Mips/MipsMCInstLower.cpp @@ -36,36 +36,87 @@ void MipsMCInstLower::Initialize(MCContext *C) { MCOperand MipsMCInstLower::LowerSymbolOperand(const MachineOperand &MO, MachineOperandType MOTy, unsigned Offset) const { - MCSymbolRefExpr::VariantKind Kind; + MCSymbolRefExpr::VariantKind Kind = MCSymbolRefExpr::VK_None; + MipsMCExpr::MipsExprKind TargetKind = MipsMCExpr::MEK_None; + bool IsGpOff = false; const MCSymbol *Symbol; switch(MO.getTargetFlags()) { - default: llvm_unreachable("Invalid target flag!"); - case MipsII::MO_NO_FLAG: Kind = MCSymbolRefExpr::VK_None; break; - case MipsII::MO_GPREL: Kind = MCSymbolRefExpr::VK_Mips_GPREL; break; - case MipsII::MO_GOT_CALL: Kind = MCSymbolRefExpr::VK_Mips_GOT_CALL; break; - case MipsII::MO_GOT16: Kind = MCSymbolRefExpr::VK_Mips_GOT16; break; - case MipsII::MO_GOT: Kind = MCSymbolRefExpr::VK_Mips_GOT; break; - case MipsII::MO_ABS_HI: Kind = MCSymbolRefExpr::VK_Mips_ABS_HI; break; - case MipsII::MO_ABS_LO: Kind = MCSymbolRefExpr::VK_Mips_ABS_LO; break; - case MipsII::MO_TLSGD: Kind = MCSymbolRefExpr::VK_Mips_TLSGD; break; - case MipsII::MO_TLSLDM: Kind = MCSymbolRefExpr::VK_Mips_TLSLDM; break; - case MipsII::MO_DTPREL_HI: Kind = MCSymbolRefExpr::VK_Mips_DTPREL_HI; break; - case MipsII::MO_DTPREL_LO: Kind = MCSymbolRefExpr::VK_Mips_DTPREL_LO; break; - case MipsII::MO_GOTTPREL: Kind = MCSymbolRefExpr::VK_Mips_GOTTPREL; break; - case MipsII::MO_TPREL_HI: Kind = MCSymbolRefExpr::VK_Mips_TPREL_HI; break; - case MipsII::MO_TPREL_LO: Kind = MCSymbolRefExpr::VK_Mips_TPREL_LO; break; - case MipsII::MO_GPOFF_HI: Kind = MCSymbolRefExpr::VK_Mips_GPOFF_HI; break; - case MipsII::MO_GPOFF_LO: Kind = MCSymbolRefExpr::VK_Mips_GPOFF_LO; break; - case MipsII::MO_GOT_DISP: Kind = MCSymbolRefExpr::VK_Mips_GOT_DISP; break; - case MipsII::MO_GOT_PAGE: Kind = MCSymbolRefExpr::VK_Mips_GOT_PAGE; break; - case MipsII::MO_GOT_OFST: Kind = MCSymbolRefExpr::VK_Mips_GOT_OFST; break; - case MipsII::MO_HIGHER: Kind = MCSymbolRefExpr::VK_Mips_HIGHER; break; - case MipsII::MO_HIGHEST: Kind = MCSymbolRefExpr::VK_Mips_HIGHEST; break; - case MipsII::MO_GOT_HI16: Kind = MCSymbolRefExpr::VK_Mips_GOT_HI16; break; - case MipsII::MO_GOT_LO16: Kind = MCSymbolRefExpr::VK_Mips_GOT_LO16; break; - case MipsII::MO_CALL_HI16: Kind = MCSymbolRefExpr::VK_Mips_CALL_HI16; break; - case MipsII::MO_CALL_LO16: Kind = MCSymbolRefExpr::VK_Mips_CALL_LO16; break; + default: + llvm_unreachable("Invalid target flag!"); + case MipsII::MO_NO_FLAG: + break; + case MipsII::MO_GPREL: + TargetKind = MipsMCExpr::MEK_GPREL; + break; + case MipsII::MO_GOT_CALL: + TargetKind = MipsMCExpr::MEK_GOT_CALL; + break; + case MipsII::MO_GOT: + TargetKind = MipsMCExpr::MEK_GOT; + break; + case MipsII::MO_ABS_HI: + TargetKind = MipsMCExpr::MEK_HI; + break; + case MipsII::MO_ABS_LO: + TargetKind = MipsMCExpr::MEK_LO; + break; + case MipsII::MO_TLSGD: + TargetKind = MipsMCExpr::MEK_TLSGD; + break; + case MipsII::MO_TLSLDM: + TargetKind = MipsMCExpr::MEK_TLSLDM; + break; + case MipsII::MO_DTPREL_HI: + TargetKind = MipsMCExpr::MEK_DTPREL_HI; + break; + case MipsII::MO_DTPREL_LO: + TargetKind = MipsMCExpr::MEK_DTPREL_LO; + break; + case MipsII::MO_GOTTPREL: + TargetKind = MipsMCExpr::MEK_GOTTPREL; + break; + case MipsII::MO_TPREL_HI: + TargetKind = MipsMCExpr::MEK_TPREL_HI; + break; + case MipsII::MO_TPREL_LO: + TargetKind = MipsMCExpr::MEK_TPREL_LO; + break; + case MipsII::MO_GPOFF_HI: + TargetKind = MipsMCExpr::MEK_HI; + IsGpOff = true; + break; + case MipsII::MO_GPOFF_LO: + TargetKind = MipsMCExpr::MEK_LO; + IsGpOff = true; + break; + case MipsII::MO_GOT_DISP: + TargetKind = MipsMCExpr::MEK_GOT_DISP; + break; + case MipsII::MO_GOT_HI16: + TargetKind = MipsMCExpr::MEK_GOT_HI16; + break; + case MipsII::MO_GOT_LO16: + TargetKind = MipsMCExpr::MEK_GOT_LO16; + break; + case MipsII::MO_GOT_PAGE: + TargetKind = MipsMCExpr::MEK_GOT_PAGE; + break; + case MipsII::MO_GOT_OFST: + TargetKind = MipsMCExpr::MEK_GOT_OFST; + break; + case MipsII::MO_HIGHER: + TargetKind = MipsMCExpr::MEK_HIGHER; + break; + case MipsII::MO_HIGHEST: + TargetKind = MipsMCExpr::MEK_HIGHEST; + break; + case MipsII::MO_CALL_HI16: + TargetKind = MipsMCExpr::MEK_CALL_HI16; + break; + case MipsII::MO_CALL_LO16: + TargetKind = MipsMCExpr::MEK_CALL_LO16; + break; } switch (MOTy) { @@ -106,30 +157,23 @@ MCOperand MipsMCInstLower::LowerSymbolOperand(const MachineOperand &MO, llvm_unreachable("<unknown operand type>"); } - const MCSymbolRefExpr *MCSym = MCSymbolRefExpr::create(Symbol, Kind, *Ctx); + const MCExpr *Expr = MCSymbolRefExpr::create(Symbol, Kind, *Ctx); - if (!Offset) - return MCOperand::createExpr(MCSym); + if (Offset) { + // Assume offset is never negative. + assert(Offset > 0); - // Assume offset is never negative. - assert(Offset > 0); + Expr = MCBinaryExpr::createAdd(Expr, MCConstantExpr::create(Offset, *Ctx), + *Ctx); + } - const MCConstantExpr *OffsetExpr = MCConstantExpr::create(Offset, *Ctx); - const MCBinaryExpr *Add = MCBinaryExpr::createAdd(MCSym, OffsetExpr, *Ctx); - return MCOperand::createExpr(Add); -} + if (IsGpOff) + Expr = MipsMCExpr::createGpOff(TargetKind, Expr, *Ctx); + else if (TargetKind != MipsMCExpr::MEK_None) + Expr = MipsMCExpr::create(TargetKind, Expr, *Ctx); -/* -static void CreateMCInst(MCInst& Inst, unsigned Opc, const MCOperand &Opnd0, - const MCOperand &Opnd1, - const MCOperand &Opnd2 = MCOperand()) { - Inst.setOpcode(Opc); - Inst.addOperand(Opnd0); - Inst.addOperand(Opnd1); - if (Opnd2.isValid()) - Inst.addOperand(Opnd2); + return MCOperand::createExpr(Expr); } -*/ MCOperand MipsMCInstLower::LowerOperand(const MachineOperand &MO, unsigned offset) const { @@ -160,7 +204,7 @@ MCOperand MipsMCInstLower::LowerOperand(const MachineOperand &MO, MCOperand MipsMCInstLower::createSub(MachineBasicBlock *BB1, MachineBasicBlock *BB2, - MCSymbolRefExpr::VariantKind Kind) const { + MipsMCExpr::MipsExprKind Kind) const { const MCSymbolRefExpr *Sym1 = MCSymbolRefExpr::create(BB1->getSymbol(), *Ctx); const MCSymbolRefExpr *Sym2 = MCSymbolRefExpr::create(BB2->getSymbol(), *Ctx); const MCBinaryExpr *Sub = MCBinaryExpr::createSub(Sym1, Sym2, *Ctx); @@ -178,12 +222,12 @@ lowerLongBranchLUi(const MachineInstr *MI, MCInst &OutMI) const { // Create %hi($tgt-$baltgt). OutMI.addOperand(createSub(MI->getOperand(1).getMBB(), MI->getOperand(2).getMBB(), - MCSymbolRefExpr::VK_Mips_ABS_HI)); + MipsMCExpr::MEK_HI)); } -void MipsMCInstLower:: -lowerLongBranchADDiu(const MachineInstr *MI, MCInst &OutMI, int Opcode, - MCSymbolRefExpr::VariantKind Kind) const { +void MipsMCInstLower::lowerLongBranchADDiu( + const MachineInstr *MI, MCInst &OutMI, int Opcode, + MipsMCExpr::MipsExprKind Kind) const { OutMI.setOpcode(Opcode); // Lower two register operands. @@ -206,17 +250,14 @@ bool MipsMCInstLower::lowerLongBranch(const MachineInstr *MI, lowerLongBranchLUi(MI, OutMI); return true; case Mips::LONG_BRANCH_ADDiu: - lowerLongBranchADDiu(MI, OutMI, Mips::ADDiu, - MCSymbolRefExpr::VK_Mips_ABS_LO); + lowerLongBranchADDiu(MI, OutMI, Mips::ADDiu, MipsMCExpr::MEK_LO); return true; case Mips::LONG_BRANCH_DADDiu: unsigned TargetFlags = MI->getOperand(2).getTargetFlags(); if (TargetFlags == MipsII::MO_ABS_HI) - lowerLongBranchADDiu(MI, OutMI, Mips::DADDiu, - MCSymbolRefExpr::VK_Mips_ABS_HI); + lowerLongBranchADDiu(MI, OutMI, Mips::DADDiu, MipsMCExpr::MEK_HI); else if (TargetFlags == MipsII::MO_ABS_LO) - lowerLongBranchADDiu(MI, OutMI, Mips::DADDiu, - MCSymbolRefExpr::VK_Mips_ABS_LO); + lowerLongBranchADDiu(MI, OutMI, Mips::DADDiu, MipsMCExpr::MEK_LO); else report_fatal_error("Unexpected flags for LONG_BRANCH_DADDiu"); return true; |
