diff options
Diffstat (limited to 'llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp')
| -rw-r--r-- | llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp | 56 |
1 files changed, 9 insertions, 47 deletions
diff --git a/llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp b/llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp index c75ee034caf..b906ca03c00 100644 --- a/llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp +++ b/llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp @@ -2033,56 +2033,15 @@ bool MipsAsmParser::processInstruction(MCInst &Inst, SMLoc IDLoc, // FIXME: Add support for label+offset operands (currently causes an error). // FIXME: Add support for forward-declared local symbols. - // FIXME: Add expansion for when the LargeGOT option is enabled. - if (JalSym->isInSection() || JalSym->isTemporary() || - (JalSym->isELF() && - cast<MCSymbolELF>(JalSym)->getBinding() == ELF::STB_LOCAL)) { - if (isABI_O32()) { - // If it's a local symbol and the O32 ABI is being used, we expand to: - // lw $25, 0($gp) - // R_(MICRO)MIPS_GOT16 label - // addiu $25, $25, 0 - // R_(MICRO)MIPS_LO16 label - // jalr $25 - const MCExpr *Got16RelocExpr = - MipsMCExpr::create(MipsMCExpr::MEK_GOT, JalExpr, getContext()); - const MCExpr *Lo16RelocExpr = - MipsMCExpr::create(MipsMCExpr::MEK_LO, JalExpr, getContext()); - - TOut.emitRRX(Mips::LW, Mips::T9, GPReg, - MCOperand::createExpr(Got16RelocExpr), IDLoc, STI); - TOut.emitRRX(Mips::ADDiu, Mips::T9, Mips::T9, - MCOperand::createExpr(Lo16RelocExpr), IDLoc, STI); - } else if (isABI_N32() || isABI_N64()) { - // If it's a local symbol and the N32/N64 ABIs are being used, - // we expand to: - // lw/ld $25, 0($gp) - // R_(MICRO)MIPS_GOT_DISP label - // jalr $25 - const MCExpr *GotDispRelocExpr = - MipsMCExpr::create(MipsMCExpr::MEK_GOT_DISP, JalExpr, getContext()); - - TOut.emitRRX(ABI.ArePtrs64bit() ? Mips::LD : Mips::LW, Mips::T9, - GPReg, MCOperand::createExpr(GotDispRelocExpr), IDLoc, - STI); - } - } else { - // If it's an external/weak symbol, we expand to: - // lw/ld $25, 0($gp) - // R_(MICRO)MIPS_CALL16 label - // jalr $25 - const MCExpr *Call16RelocExpr = - MipsMCExpr::create(MipsMCExpr::MEK_GOT_CALL, JalExpr, getContext()); - - TOut.emitRRX(ABI.ArePtrs64bit() ? Mips::LD : Mips::LW, Mips::T9, GPReg, - MCOperand::createExpr(Call16RelocExpr), IDLoc, STI); - } + if (expandLoadAddress(Mips::T9, Mips::NoRegister, Inst.getOperand(0), + !isGP64bit(), IDLoc, Out, STI)) + return true; MCInst JalrInst; - if (IsCpRestoreSet && inMicroMipsMode()) - JalrInst.setOpcode(Mips::JALRS_MM); + if (inMicroMipsMode()) + JalrInst.setOpcode(IsCpRestoreSet ? Mips::JALRS_MM : Mips::JALR_MM); else - JalrInst.setOpcode(inMicroMipsMode() ? Mips::JALR_MM : Mips::JALR); + JalrInst.setOpcode(Mips::JALR); JalrInst.addOperand(MCOperand::createReg(Mips::RA)); JalrInst.addOperand(MCOperand::createReg(Mips::T9)); @@ -2933,6 +2892,9 @@ bool MipsAsmParser::loadAndAddSymbolAddress(const MCExpr *SymExpr, TmpReg = ATReg; } + // FIXME: In case of N32 / N64 ABI and emabled XGOT, local addresses + // loaded using R_MIPS_GOT_PAGE / R_MIPS_GOT_OFST pair of relocations. + // FIXME: Implement XGOT for microMIPS. if (UseXGOT) { // Loading address from XGOT // External GOT: lui $tmp, %got_hi(symbol)($gp) |
