diff options
Diffstat (limited to 'lib/Target/Mips/AsmParser/MipsAsmParser.cpp')
| -rw-r--r-- | lib/Target/Mips/AsmParser/MipsAsmParser.cpp | 435 |
1 files changed, 398 insertions, 37 deletions
diff --git a/lib/Target/Mips/AsmParser/MipsAsmParser.cpp b/lib/Target/Mips/AsmParser/MipsAsmParser.cpp index 5b8d633554b8..f14156dbfa2b 100644 --- a/lib/Target/Mips/AsmParser/MipsAsmParser.cpp +++ b/lib/Target/Mips/AsmParser/MipsAsmParser.cpp @@ -113,6 +113,7 @@ class MipsAsmParser : public MCTargetAsmParser { // nullptr, which indicates that no function is currently // selected. This usually happens after an '.end func' // directive. + bool IsLittleEndian; // Print a warning along with its fix-it message at the given range. void printWarningWithFixIt(const Twine &Msg, const Twine &FixMsg, @@ -214,11 +215,17 @@ class MipsAsmParser : public MCTargetAsmParser { bool expandCondBranches(MCInst &Inst, SMLoc IDLoc, SmallVectorImpl<MCInst> &Instructions); + bool expandUlhu(MCInst &Inst, SMLoc IDLoc, + SmallVectorImpl<MCInst> &Instructions); + + bool expandUlw(MCInst &Inst, SMLoc IDLoc, + SmallVectorImpl<MCInst> &Instructions); + void createNop(bool hasShortDelaySlot, SMLoc IDLoc, SmallVectorImpl<MCInst> &Instructions); void createAddu(unsigned DstReg, unsigned SrcReg, unsigned TrgReg, - SmallVectorImpl<MCInst> &Instructions); + bool Is64Bit, SmallVectorImpl<MCInst> &Instructions); bool reportParseError(Twine ErrorMsg); bool reportParseError(SMLoc Loc, Twine ErrorMsg); @@ -251,6 +258,8 @@ class MipsAsmParser : public MCTargetAsmParser { bool parseSetMips16Directive(); bool parseSetNoMips16Directive(); bool parseSetFpDirective(); + bool parseSetOddSPRegDirective(); + bool parseSetNoOddSPRegDirective(); bool parseSetPopDirective(); bool parseSetPushDirective(); bool parseSetSoftFloatDirective(); @@ -352,6 +361,16 @@ class MipsAsmParser : public MCTargetAsmParser { } } + void setModuleFeatureBits(uint64_t Feature, StringRef FeatureString) { + setFeatureBits(Feature, FeatureString); + AssemblerOptions.front()->setFeatures(STI.getFeatureBits()); + } + + void clearModuleFeatureBits(uint64_t Feature, StringRef FeatureString) { + clearFeatureBits(Feature, FeatureString); + AssemblerOptions.front()->setFeatures(STI.getFeatureBits()); + } + public: enum MipsMatchResultTy { Match_RequiresDifferentSrcAndDst = FIRST_TARGET_MATCH_RESULT_TY @@ -387,6 +406,13 @@ public: report_fatal_error("-mno-odd-spreg requires the O32 ABI"); CurrentFn = nullptr; + + Triple TheTriple(sti.getTargetTriple()); + if ((TheTriple.getArch() == Triple::mips) || + (TheTriple.getArch() == Triple::mips64)) + IsLittleEndian = false; + else + IsLittleEndian = true; } /// True if all of $fcc0 - $fcc7 exist for the current ISA. @@ -462,6 +488,8 @@ public: void warnIfRegIndexIsAT(unsigned RegIndex, SMLoc Loc); void warnIfNoMacro(SMLoc Loc); + + bool isLittle() const { return IsLittleEndian; } }; } @@ -486,11 +514,11 @@ public: RegKind_CCR = 128, /// CCR RegKind_HWRegs = 256, /// HWRegs RegKind_COP3 = 512, /// COP3 - + RegKind_COP0 = 1024, /// COP0 /// Potentially any (e.g. $1) RegKind_Numeric = RegKind_GPR | RegKind_FGR | RegKind_FCC | RegKind_MSA128 | RegKind_MSACtrl | RegKind_COP2 | RegKind_ACC | - RegKind_CCR | RegKind_HWRegs | RegKind_COP3 + RegKind_CCR | RegKind_HWRegs | RegKind_COP3 | RegKind_COP0 }; private: @@ -652,6 +680,14 @@ private: return RegIdx.RegInfo->getRegClass(ClassID).getRegister(RegIdx.Index); } + /// Coerce the register to COP0 and return the real register for the + /// current target. + unsigned getCOP0Reg() const { + assert(isRegIdx() && (RegIdx.Kind & RegKind_COP0) && "Invalid access!"); + unsigned ClassID = Mips::COP0RegClassID; + return RegIdx.RegInfo->getRegClass(ClassID).getRegister(RegIdx.Index); + } + /// Coerce the register to COP2 and return the real register for the /// current target. unsigned getCOP2Reg() const { @@ -793,6 +829,11 @@ public: Inst.addOperand(MCOperand::createReg(getMSACtrlReg())); } + void addCOP0AsmRegOperands(MCInst &Inst, unsigned N) const { + assert(N == 1 && "Invalid number of operands!"); + Inst.addOperand(MCOperand::createReg(getCOP0Reg())); + } + void addCOP2AsmRegOperands(MCInst &Inst, unsigned N) const { assert(N == 1 && "Invalid number of operands!"); Inst.addOperand(MCOperand::createReg(getCOP2Reg())); @@ -1168,6 +1209,9 @@ public: bool isACCAsmReg() const { return isRegIdx() && RegIdx.Kind & RegKind_ACC && RegIdx.Index <= 3; } + bool isCOP0AsmReg() const { + return isRegIdx() && RegIdx.Kind & RegKind_COP0 && RegIdx.Index <= 31; + } bool isCOP2AsmReg() const { return isRegIdx() && RegIdx.Kind & RegKind_COP2 && RegIdx.Index <= 31; } @@ -1635,6 +1679,8 @@ bool MipsAsmParser::needsExpansion(MCInst &Inst) { case Mips::BLEU: case Mips::BGEU: case Mips::BGTU: + case Mips::Ulhu: + case Mips::Ulw: return true; default: return false; @@ -1673,6 +1719,10 @@ bool MipsAsmParser::expandInstruction(MCInst &Inst, SMLoc IDLoc, case Mips::BGEU: case Mips::BGTU: return expandCondBranches(Inst, IDLoc, Instructions); + case Mips::Ulhu: + return expandUlhu(Inst, IDLoc, Instructions); + case Mips::Ulw: + return expandUlw(Inst, IDLoc, Instructions); } } @@ -1774,6 +1824,16 @@ bool MipsAsmParser::loadImmediate(int64_t ImmValue, unsigned DstReg, MCInst tmpInst; + unsigned TmpReg = DstReg; + if (UseSrcReg && (DstReg == SrcReg)) { + // At this point we need AT to perform the expansions and we exit if it is + // not available. + unsigned ATReg = getATReg(IDLoc); + if (!ATReg) + return true; + TmpReg = ATReg; + } + tmpInst.setLoc(IDLoc); // FIXME: gas has a special case for values that are 000...1111, which // becomes a li -1 and then a dsrl @@ -1810,23 +1870,23 @@ bool MipsAsmParser::loadImmediate(int64_t ImmValue, unsigned DstReg, // For DLI, expand to an ORi instead of a LUi to avoid sign-extending the // upper 32 bits. tmpInst.setOpcode(Mips::ORi); - tmpInst.addOperand(MCOperand::createReg(DstReg)); + tmpInst.addOperand(MCOperand::createReg(TmpReg)); tmpInst.addOperand(MCOperand::createReg(Mips::ZERO)); tmpInst.addOperand(MCOperand::createImm(Bits31To16)); tmpInst.setLoc(IDLoc); Instructions.push_back(tmpInst); // Move the value to the upper 16 bits by doing a 16-bit left shift. - createLShiftOri<16>(0, DstReg, IDLoc, Instructions); + createLShiftOri<16>(0, TmpReg, IDLoc, Instructions); } else { tmpInst.setOpcode(Mips::LUi); - tmpInst.addOperand(MCOperand::createReg(DstReg)); + tmpInst.addOperand(MCOperand::createReg(TmpReg)); tmpInst.addOperand(MCOperand::createImm(Bits31To16)); Instructions.push_back(tmpInst); } - createLShiftOri<0>(Bits15To0, DstReg, IDLoc, Instructions); + createLShiftOri<0>(Bits15To0, TmpReg, IDLoc, Instructions); if (UseSrcReg) - createAddu(DstReg, DstReg, SrcReg, Instructions); + createAddu(DstReg, TmpReg, SrcReg, !Is32BitImm, Instructions); } else if ((ImmValue & (0xffffLL << 48)) == 0) { if (Is32BitImm) { @@ -1853,14 +1913,14 @@ bool MipsAsmParser::loadImmediate(int64_t ImmValue, unsigned DstReg, uint16_t Bits15To0 = ImmValue & 0xffff; tmpInst.setOpcode(Mips::LUi); - tmpInst.addOperand(MCOperand::createReg(DstReg)); + tmpInst.addOperand(MCOperand::createReg(TmpReg)); tmpInst.addOperand(MCOperand::createImm(Bits47To32)); Instructions.push_back(tmpInst); - createLShiftOri<0>(Bits31To16, DstReg, IDLoc, Instructions); - createLShiftOri<16>(Bits15To0, DstReg, IDLoc, Instructions); + createLShiftOri<0>(Bits31To16, TmpReg, IDLoc, Instructions); + createLShiftOri<16>(Bits15To0, TmpReg, IDLoc, Instructions); if (UseSrcReg) - createAddu(DstReg, DstReg, SrcReg, Instructions); + createAddu(DstReg, TmpReg, SrcReg, !Is32BitImm, Instructions); } else { if (Is32BitImm) { @@ -1889,22 +1949,22 @@ bool MipsAsmParser::loadImmediate(int64_t ImmValue, unsigned DstReg, uint16_t Bits15To0 = ImmValue & 0xffff; tmpInst.setOpcode(Mips::LUi); - tmpInst.addOperand(MCOperand::createReg(DstReg)); + tmpInst.addOperand(MCOperand::createReg(TmpReg)); tmpInst.addOperand(MCOperand::createImm(Bits63To48)); Instructions.push_back(tmpInst); - createLShiftOri<0>(Bits47To32, DstReg, IDLoc, Instructions); + createLShiftOri<0>(Bits47To32, TmpReg, IDLoc, Instructions); // When Bits31To16 is 0, do a left shift of 32 bits instead of doing // two left shifts of 16 bits. if (Bits31To16 == 0) { - createLShiftOri<32>(Bits15To0, DstReg, IDLoc, Instructions); + createLShiftOri<32>(Bits15To0, TmpReg, IDLoc, Instructions); } else { - createLShiftOri<16>(Bits31To16, DstReg, IDLoc, Instructions); - createLShiftOri<16>(Bits15To0, DstReg, IDLoc, Instructions); + createLShiftOri<16>(Bits31To16, TmpReg, IDLoc, Instructions); + createLShiftOri<16>(Bits15To0, TmpReg, IDLoc, Instructions); } if (UseSrcReg) - createAddu(DstReg, DstReg, SrcReg, Instructions); + createAddu(DstReg, TmpReg, SrcReg, !Is32BitImm, Instructions); } return false; } @@ -1991,6 +2051,18 @@ bool MipsAsmParser::loadAndAddSymbolAddress( const MCSymbolRefExpr *LoExpr = MCSymbolRefExpr::create( &Symbol->getSymbol(), MCSymbolRefExpr::VK_Mips_ABS_LO, getContext()); + bool UseSrcReg = SrcReg != Mips::NoRegister; + + unsigned TmpReg = DstReg; + if (UseSrcReg && (DstReg == SrcReg)) { + // At this point we need AT to perform the expansions and we exit if it is + // not available. + unsigned ATReg = getATReg(IDLoc); + if (!ATReg) + return true; + TmpReg = ATReg; + } + if (!Is32BitSym) { // If it's a 64-bit architecture, expand to: // la d,sym => lui d,highest(sym) @@ -2005,31 +2077,31 @@ bool MipsAsmParser::loadAndAddSymbolAddress( &Symbol->getSymbol(), MCSymbolRefExpr::VK_Mips_HIGHER, getContext()); tmpInst.setOpcode(Mips::LUi); - tmpInst.addOperand(MCOperand::createReg(DstReg)); + tmpInst.addOperand(MCOperand::createReg(TmpReg)); tmpInst.addOperand(MCOperand::createExpr(HighestExpr)); Instructions.push_back(tmpInst); - createLShiftOri<0>(MCOperand::createExpr(HigherExpr), DstReg, SMLoc(), + createLShiftOri<0>(MCOperand::createExpr(HigherExpr), TmpReg, SMLoc(), Instructions); - createLShiftOri<16>(MCOperand::createExpr(HiExpr), DstReg, SMLoc(), + createLShiftOri<16>(MCOperand::createExpr(HiExpr), TmpReg, SMLoc(), Instructions); - createLShiftOri<16>(MCOperand::createExpr(LoExpr), DstReg, SMLoc(), + createLShiftOri<16>(MCOperand::createExpr(LoExpr), TmpReg, SMLoc(), Instructions); } else { // Otherwise, expand to: // la d,sym => lui d,hi16(sym) // ori d,d,lo16(sym) tmpInst.setOpcode(Mips::LUi); - tmpInst.addOperand(MCOperand::createReg(DstReg)); + tmpInst.addOperand(MCOperand::createReg(TmpReg)); tmpInst.addOperand(MCOperand::createExpr(HiExpr)); Instructions.push_back(tmpInst); - createLShiftOri<0>(MCOperand::createExpr(LoExpr), DstReg, SMLoc(), + createLShiftOri<0>(MCOperand::createExpr(LoExpr), TmpReg, SMLoc(), Instructions); } - if (SrcReg != Mips::NoRegister) - createAddu(DstReg, DstReg, SrcReg, Instructions); + if (UseSrcReg) + createAddu(DstReg, TmpReg, SrcReg, !Is32BitSym, Instructions); return false; } @@ -2449,6 +2521,174 @@ bool MipsAsmParser::expandCondBranches(MCInst &Inst, SMLoc IDLoc, return false; } +bool MipsAsmParser::expandUlhu(MCInst &Inst, SMLoc IDLoc, + SmallVectorImpl<MCInst> &Instructions) { + if (hasMips32r6() || hasMips64r6()) { + Error(IDLoc, "instruction not supported on mips32r6 or mips64r6"); + return false; + } + + warnIfNoMacro(IDLoc); + + const MCOperand &DstRegOp = Inst.getOperand(0); + assert(DstRegOp.isReg() && "expected register operand kind"); + + const MCOperand &SrcRegOp = Inst.getOperand(1); + assert(SrcRegOp.isReg() && "expected register operand kind"); + + const MCOperand &OffsetImmOp = Inst.getOperand(2); + assert(OffsetImmOp.isImm() && "expected immediate operand kind"); + + unsigned DstReg = DstRegOp.getReg(); + unsigned SrcReg = SrcRegOp.getReg(); + int64_t OffsetValue = OffsetImmOp.getImm(); + + // NOTE: We always need AT for ULHU, as it is always used as the source + // register for one of the LBu's. + unsigned ATReg = getATReg(IDLoc); + if (!ATReg) + return true; + + // When the value of offset+1 does not fit in 16 bits, we have to load the + // offset in AT, (D)ADDu the original source register (if there was one), and + // then use AT as the source register for the 2 generated LBu's. + bool LoadedOffsetInAT = false; + if (!isInt<16>(OffsetValue + 1) || !isInt<16>(OffsetValue)) { + LoadedOffsetInAT = true; + + if (loadImmediate(OffsetValue, ATReg, Mips::NoRegister, !ABI.ArePtrs64bit(), + IDLoc, Instructions)) + return true; + + // NOTE: We do this (D)ADDu here instead of doing it in loadImmediate() + // because it will make our output more similar to GAS'. For example, + // generating an "ori $1, $zero, 32768" followed by an "addu $1, $1, $9", + // instead of just an "ori $1, $9, 32768". + // NOTE: If there is no source register specified in the ULHU, the parser + // will interpret it as $0. + if (SrcReg != Mips::ZERO && SrcReg != Mips::ZERO_64) + createAddu(ATReg, ATReg, SrcReg, ABI.ArePtrs64bit(), Instructions); + } + + unsigned FirstLbuDstReg = LoadedOffsetInAT ? DstReg : ATReg; + unsigned SecondLbuDstReg = LoadedOffsetInAT ? ATReg : DstReg; + unsigned LbuSrcReg = LoadedOffsetInAT ? ATReg : SrcReg; + + int64_t FirstLbuOffset = 0, SecondLbuOffset = 0; + if (isLittle()) { + FirstLbuOffset = LoadedOffsetInAT ? 1 : (OffsetValue + 1); + SecondLbuOffset = LoadedOffsetInAT ? 0 : OffsetValue; + } else { + FirstLbuOffset = LoadedOffsetInAT ? 0 : OffsetValue; + SecondLbuOffset = LoadedOffsetInAT ? 1 : (OffsetValue + 1); + } + + unsigned SllReg = LoadedOffsetInAT ? DstReg : ATReg; + + MCInst TmpInst; + TmpInst.setOpcode(Mips::LBu); + TmpInst.addOperand(MCOperand::createReg(FirstLbuDstReg)); + TmpInst.addOperand(MCOperand::createReg(LbuSrcReg)); + TmpInst.addOperand(MCOperand::createImm(FirstLbuOffset)); + Instructions.push_back(TmpInst); + + TmpInst.clear(); + TmpInst.setOpcode(Mips::LBu); + TmpInst.addOperand(MCOperand::createReg(SecondLbuDstReg)); + TmpInst.addOperand(MCOperand::createReg(LbuSrcReg)); + TmpInst.addOperand(MCOperand::createImm(SecondLbuOffset)); + Instructions.push_back(TmpInst); + + TmpInst.clear(); + TmpInst.setOpcode(Mips::SLL); + TmpInst.addOperand(MCOperand::createReg(SllReg)); + TmpInst.addOperand(MCOperand::createReg(SllReg)); + TmpInst.addOperand(MCOperand::createImm(8)); + Instructions.push_back(TmpInst); + + TmpInst.clear(); + TmpInst.setOpcode(Mips::OR); + TmpInst.addOperand(MCOperand::createReg(DstReg)); + TmpInst.addOperand(MCOperand::createReg(DstReg)); + TmpInst.addOperand(MCOperand::createReg(ATReg)); + Instructions.push_back(TmpInst); + + return false; +} + +bool MipsAsmParser::expandUlw(MCInst &Inst, SMLoc IDLoc, + SmallVectorImpl<MCInst> &Instructions) { + if (hasMips32r6() || hasMips64r6()) { + Error(IDLoc, "instruction not supported on mips32r6 or mips64r6"); + return false; + } + + const MCOperand &DstRegOp = Inst.getOperand(0); + assert(DstRegOp.isReg() && "expected register operand kind"); + + const MCOperand &SrcRegOp = Inst.getOperand(1); + assert(SrcRegOp.isReg() && "expected register operand kind"); + + const MCOperand &OffsetImmOp = Inst.getOperand(2); + assert(OffsetImmOp.isImm() && "expected immediate operand kind"); + + unsigned SrcReg = SrcRegOp.getReg(); + int64_t OffsetValue = OffsetImmOp.getImm(); + unsigned ATReg = 0; + + // When the value of offset+3 does not fit in 16 bits, we have to load the + // offset in AT, (D)ADDu the original source register (if there was one), and + // then use AT as the source register for the generated LWL and LWR. + bool LoadedOffsetInAT = false; + if (!isInt<16>(OffsetValue + 3) || !isInt<16>(OffsetValue)) { + ATReg = getATReg(IDLoc); + if (!ATReg) + return true; + LoadedOffsetInAT = true; + + warnIfNoMacro(IDLoc); + + if (loadImmediate(OffsetValue, ATReg, Mips::NoRegister, !ABI.ArePtrs64bit(), + IDLoc, Instructions)) + return true; + + // NOTE: We do this (D)ADDu here instead of doing it in loadImmediate() + // because it will make our output more similar to GAS'. For example, + // generating an "ori $1, $zero, 32768" followed by an "addu $1, $1, $9", + // instead of just an "ori $1, $9, 32768". + // NOTE: If there is no source register specified in the ULW, the parser + // will interpret it as $0. + if (SrcReg != Mips::ZERO && SrcReg != Mips::ZERO_64) + createAddu(ATReg, ATReg, SrcReg, ABI.ArePtrs64bit(), Instructions); + } + + unsigned FinalSrcReg = LoadedOffsetInAT ? ATReg : SrcReg; + int64_t LeftLoadOffset = 0, RightLoadOffset = 0; + if (isLittle()) { + LeftLoadOffset = LoadedOffsetInAT ? 3 : (OffsetValue + 3); + RightLoadOffset = LoadedOffsetInAT ? 0 : OffsetValue; + } else { + LeftLoadOffset = LoadedOffsetInAT ? 0 : OffsetValue; + RightLoadOffset = LoadedOffsetInAT ? 3 : (OffsetValue + 3); + } + + MCInst LeftLoadInst; + LeftLoadInst.setOpcode(Mips::LWL); + LeftLoadInst.addOperand(DstRegOp); + LeftLoadInst.addOperand(MCOperand::createReg(FinalSrcReg)); + LeftLoadInst.addOperand(MCOperand::createImm(LeftLoadOffset)); + Instructions.push_back(LeftLoadInst); + + MCInst RightLoadInst; + RightLoadInst.setOpcode(Mips::LWR); + RightLoadInst.addOperand(DstRegOp); + RightLoadInst.addOperand(MCOperand::createReg(FinalSrcReg)); + RightLoadInst.addOperand(MCOperand::createImm(RightLoadOffset )); + Instructions.push_back(RightLoadInst); + + return false; +} + void MipsAsmParser::createNop(bool hasShortDelaySlot, SMLoc IDLoc, SmallVectorImpl<MCInst> &Instructions) { MCInst NopInst; @@ -2466,10 +2706,10 @@ void MipsAsmParser::createNop(bool hasShortDelaySlot, SMLoc IDLoc, } void MipsAsmParser::createAddu(unsigned DstReg, unsigned SrcReg, - unsigned TrgReg, + unsigned TrgReg, bool Is64Bit, SmallVectorImpl<MCInst> &Instructions) { MCInst AdduInst; - AdduInst.setOpcode(Mips::ADDu); + AdduInst.setOpcode(Is64Bit ? Mips::DADDu : Mips::ADDu); AdduInst.addOperand(MCOperand::createReg(DstReg)); AdduInst.addOperand(MCOperand::createReg(SrcReg)); AdduInst.addOperand(MCOperand::createReg(TrgReg)); @@ -2972,9 +3212,12 @@ bool MipsAsmParser::parseMemOffset(const MCExpr *&Res, bool isParenExpr) { MCAsmParser &Parser = getParser(); SMLoc S; bool Result = true; + unsigned NumOfLParen = 0; - while (getLexer().getKind() == AsmToken::LParen) + while (getLexer().getKind() == AsmToken::LParen) { Parser.Lex(); + ++NumOfLParen; + } switch (getLexer().getKind()) { default: @@ -2985,7 +3228,7 @@ bool MipsAsmParser::parseMemOffset(const MCExpr *&Res, bool isParenExpr) { case AsmToken::Minus: case AsmToken::Plus: if (isParenExpr) - Result = getParser().parseParenExpression(Res, S); + Result = getParser().parseParenExprOfDepth(NumOfLParen, Res, S); else Result = (getParser().parseExpression(Res)); while (getLexer().getKind() == AsmToken::RParen) @@ -3867,6 +4110,34 @@ bool MipsAsmParser::parseSetFpDirective() { return false; } +bool MipsAsmParser::parseSetOddSPRegDirective() { + MCAsmParser &Parser = getParser(); + + Parser.Lex(); // Eat "oddspreg". + if (getLexer().isNot(AsmToken::EndOfStatement)) { + reportParseError("unexpected token, expected end of statement"); + return false; + } + + clearFeatureBits(Mips::FeatureNoOddSPReg, "nooddspreg"); + getTargetStreamer().emitDirectiveSetOddSPReg(); + return false; +} + +bool MipsAsmParser::parseSetNoOddSPRegDirective() { + MCAsmParser &Parser = getParser(); + + Parser.Lex(); // Eat "nooddspreg". + if (getLexer().isNot(AsmToken::EndOfStatement)) { + reportParseError("unexpected token, expected end of statement"); + return false; + } + + setFeatureBits(Mips::FeatureNoOddSPReg, "nooddspreg"); + getTargetStreamer().emitDirectiveSetNoOddSPReg(); + return false; +} + bool MipsAsmParser::parseSetPopDirective() { MCAsmParser &Parser = getParser(); SMLoc Loc = getLexer().getLoc(); @@ -4229,6 +4500,10 @@ bool MipsAsmParser::parseDirectiveSet() { return parseSetArchDirective(); } else if (Tok.getString() == "fp") { return parseSetFpDirective(); + } else if (Tok.getString() == "oddspreg") { + return parseSetOddSPRegDirective(); + } else if (Tok.getString() == "nooddspreg") { + return parseSetNoOddSPRegDirective(); } else if (Tok.getString() == "pop") { return parseSetPopDirective(); } else if (Tok.getString() == "push") { @@ -4428,6 +4703,8 @@ bool MipsAsmParser::parseInsnDirective() { /// ::= .module oddspreg /// ::= .module nooddspreg /// ::= .module fp=value +/// ::= .module softfloat +/// ::= .module hardfloat bool MipsAsmParser::parseDirectiveModule() { MCAsmParser &Parser = getParser(); MCAsmLexer &Lexer = getLexer(); @@ -4446,8 +4723,16 @@ bool MipsAsmParser::parseDirectiveModule() { } if (Option == "oddspreg") { - getTargetStreamer().emitDirectiveModuleOddSPReg(true, isABI_O32()); - clearFeatureBits(Mips::FeatureNoOddSPReg, "nooddspreg"); + clearModuleFeatureBits(Mips::FeatureNoOddSPReg, "nooddspreg"); + + // Synchronize the abiflags information with the FeatureBits information we + // changed above. + getTargetStreamer().updateABIInfo(*this); + + // If printing assembly, use the recently updated abiflags information. + // If generating ELF, don't do anything (the .MIPS.abiflags section gets + // emitted at the end). + getTargetStreamer().emitDirectiveModuleOddSPReg(); // If this is not the end of the statement, report an error. if (getLexer().isNot(AsmToken::EndOfStatement)) { @@ -4462,8 +4747,16 @@ bool MipsAsmParser::parseDirectiveModule() { return false; } - getTargetStreamer().emitDirectiveModuleOddSPReg(false, isABI_O32()); - setFeatureBits(Mips::FeatureNoOddSPReg, "nooddspreg"); + setModuleFeatureBits(Mips::FeatureNoOddSPReg, "nooddspreg"); + + // Synchronize the abiflags information with the FeatureBits information we + // changed above. + getTargetStreamer().updateABIInfo(*this); + + // If printing assembly, use the recently updated abiflags information. + // If generating ELF, don't do anything (the .MIPS.abiflags section gets + // emitted at the end). + getTargetStreamer().emitDirectiveModuleOddSPReg(); // If this is not the end of the statement, report an error. if (getLexer().isNot(AsmToken::EndOfStatement)) { @@ -4474,6 +4767,44 @@ bool MipsAsmParser::parseDirectiveModule() { return false; // parseDirectiveModule has finished successfully. } else if (Option == "fp") { return parseDirectiveModuleFP(); + } else if (Option == "softfloat") { + setModuleFeatureBits(Mips::FeatureSoftFloat, "soft-float"); + + // Synchronize the ABI Flags information with the FeatureBits information we + // updated above. + getTargetStreamer().updateABIInfo(*this); + + // If printing assembly, use the recently updated ABI Flags information. + // If generating ELF, don't do anything (the .MIPS.abiflags section gets + // emitted later). + getTargetStreamer().emitDirectiveModuleSoftFloat(); + + // If this is not the end of the statement, report an error. + if (getLexer().isNot(AsmToken::EndOfStatement)) { + reportParseError("unexpected token, expected end of statement"); + return false; + } + + return false; // parseDirectiveModule has finished successfully. + } else if (Option == "hardfloat") { + clearModuleFeatureBits(Mips::FeatureSoftFloat, "soft-float"); + + // Synchronize the ABI Flags information with the FeatureBits information we + // updated above. + getTargetStreamer().updateABIInfo(*this); + + // If printing assembly, use the recently updated ABI Flags information. + // If generating ELF, don't do anything (the .MIPS.abiflags section gets + // emitted later). + getTargetStreamer().emitDirectiveModuleHardFloat(); + + // If this is not the end of the statement, report an error. + if (getLexer().isNot(AsmToken::EndOfStatement)) { + reportParseError("unexpected token, expected end of statement"); + return false; + } + + return false; // parseDirectiveModule has finished successfully. } else { return Error(L, "'" + Twine(Option) + "' is not a valid .module option."); } @@ -4502,8 +4833,15 @@ bool MipsAsmParser::parseDirectiveModuleFP() { return false; } - // Emit appropriate flags. - getTargetStreamer().emitDirectiveModuleFP(FpABI, isABI_O32()); + // Synchronize the abiflags information with the FeatureBits information we + // changed above. + getTargetStreamer().updateABIInfo(*this); + + // If printing assembly, use the recently updated abiflags information. + // If generating ELF, don't do anything (the .MIPS.abiflags section gets + // emitted at the end). + getTargetStreamer().emitDirectiveModuleFP(); + Parser.Lex(); // Consume the EndOfStatement. return false; } @@ -4512,6 +4850,7 @@ bool MipsAsmParser::parseFpABIValue(MipsABIFlagsSection::FpABIKind &FpABI, StringRef Directive) { MCAsmParser &Parser = getParser(); MCAsmLexer &Lexer = getLexer(); + bool ModuleLevelOptions = Directive == ".module"; if (Lexer.is(AsmToken::Identifier)) { StringRef Value = Parser.getTok().getString(); @@ -4528,6 +4867,13 @@ bool MipsAsmParser::parseFpABIValue(MipsABIFlagsSection::FpABIKind &FpABI, } FpABI = MipsABIFlagsSection::FpABIKind::XX; + if (ModuleLevelOptions) { + setModuleFeatureBits(Mips::FeatureFPXX, "fpxx"); + clearModuleFeatureBits(Mips::FeatureFP64Bit, "fp64"); + } else { + setFeatureBits(Mips::FeatureFPXX, "fpxx"); + clearFeatureBits(Mips::FeatureFP64Bit, "fp64"); + } return true; } @@ -4547,8 +4893,23 @@ bool MipsAsmParser::parseFpABIValue(MipsABIFlagsSection::FpABIKind &FpABI, } FpABI = MipsABIFlagsSection::FpABIKind::S32; - } else + if (ModuleLevelOptions) { + clearModuleFeatureBits(Mips::FeatureFPXX, "fpxx"); + clearModuleFeatureBits(Mips::FeatureFP64Bit, "fp64"); + } else { + clearFeatureBits(Mips::FeatureFPXX, "fpxx"); + clearFeatureBits(Mips::FeatureFP64Bit, "fp64"); + } + } else { FpABI = MipsABIFlagsSection::FpABIKind::S64; + if (ModuleLevelOptions) { + clearModuleFeatureBits(Mips::FeatureFPXX, "fpxx"); + setModuleFeatureBits(Mips::FeatureFP64Bit, "fp64"); + } else { + clearFeatureBits(Mips::FeatureFPXX, "fpxx"); + setFeatureBits(Mips::FeatureFP64Bit, "fp64"); + } + } return true; } |