//
//===----------------------------------------------------------------------===//
+#include "MCTargetDesc/MipsABIInfo.h"
#include "MCTargetDesc/MipsMCExpr.h"
#include "MCTargetDesc/MipsMCTargetDesc.h"
#include "MipsRegisterInfo.h"
#include "MipsTargetStreamer.h"
#include "llvm/ADT/APInt.h"
-#include "llvm/ADT/StringSwitch.h"
#include "llvm/ADT/SmallVector.h"
+#include "llvm/ADT/StringSwitch.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCInst.h"
#include "llvm/MC/MCTargetAsmParser.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/MathExtras.h"
-#include "llvm/Support/TargetRegistry.h"
#include "llvm/Support/SourceMgr.h"
+#include "llvm/Support/TargetRegistry.h"
+#include "llvm/Support/raw_ostream.h"
#include <memory>
using namespace llvm;
ATReg(1), Reorder(true), Macro(true), Features(Features_) {}
MipsAssemblerOptions(const MipsAssemblerOptions *Opts) {
- ATReg = Opts->getATRegNum();
+ ATReg = Opts->getATRegIndex();
Reorder = Opts->isReorder();
Macro = Opts->isMacro();
Features = Opts->getFeatures();
}
- unsigned getATRegNum() const { return ATReg; }
- bool setATReg(unsigned Reg);
+ unsigned getATRegIndex() const { return ATReg; }
+ bool setATRegIndex(unsigned Reg) {
+ if (Reg > 31)
+ return false;
+
+ ATReg = Reg;
+ return true;
+ }
bool isReorder() const { return Reorder; }
void setReorder() { Reorder = true; }
Mips::FeatureMips3_32 | Mips::FeatureMips3_32r2 | Mips::FeatureMips4 |
Mips::FeatureMips4_32 | Mips::FeatureMips4_32r2 | Mips::FeatureMips5 |
Mips::FeatureMips5_32r2 | Mips::FeatureMips32 | Mips::FeatureMips32r2 |
- Mips::FeatureMips32r6 | Mips::FeatureMips64 | Mips::FeatureMips64r2 |
- Mips::FeatureMips64r6 | Mips::FeatureCnMips | Mips::FeatureFP64Bit |
- Mips::FeatureGP64Bit | Mips::FeatureNaN2008;
+ Mips::FeatureMips32r3 | Mips::FeatureMips32r5 | Mips::FeatureMips32r6 |
+ Mips::FeatureMips64 | Mips::FeatureMips64r2 | Mips::FeatureMips64r3 |
+ Mips::FeatureMips64r5 | Mips::FeatureMips64r6 | Mips::FeatureCnMips |
+ Mips::FeatureFP64Bit | Mips::FeatureGP64Bit | Mips::FeatureNaN2008;
private:
unsigned ATReg;
}
MCSubtargetInfo &STI;
+ MipsABIInfo ABI;
SmallVector<std::unique_ptr<MipsAssemblerOptions>, 2> AssemblerOptions;
MCSymbol *CurrentFn; // Pointer to the function being parsed. It may be a
// nullptr, which indicates that no function is currently
MipsAsmParser::OperandMatchResultTy parseLSAImm(OperandVector &Operands);
+ MipsAsmParser::OperandMatchResultTy
+ parseRegisterPair (OperandVector &Operands);
+
+ MipsAsmParser::OperandMatchResultTy
+ parseMovePRegPair(OperandVector &Operands);
+
+ MipsAsmParser::OperandMatchResultTy
+ parseRegisterList (OperandVector &Operands);
+
bool searchSymbolAlias(OperandVector &Operands);
bool parseOperand(OperandVector &, StringRef Mnemonic);
bool expandInstruction(MCInst &Inst, SMLoc IDLoc,
SmallVectorImpl<MCInst> &Instructions);
+ bool expandJalWithRegs(MCInst &Inst, SMLoc IDLoc,
+ SmallVectorImpl<MCInst> &Instructions);
+
bool expandLoadImm(MCInst &Inst, SMLoc IDLoc,
SmallVectorImpl<MCInst> &Instructions);
bool expandLoadAddressReg(MCInst &Inst, SMLoc IDLoc,
SmallVectorImpl<MCInst> &Instructions);
+ bool expandUncondBranchMMPseudo(MCInst &Inst, SMLoc IDLoc,
+ SmallVectorImpl<MCInst> &Instructions);
void expandLoadAddressSym(MCInst &Inst, SMLoc IDLoc,
SmallVectorImpl<MCInst> &Instructions);
void expandMemInst(MCInst &Inst, SMLoc IDLoc,
SmallVectorImpl<MCInst> &Instructions, bool isLoad,
bool isImmOpnd);
+
+ bool expandLoadStoreMultiple(MCInst &Inst, SMLoc IDLoc,
+ SmallVectorImpl<MCInst> &Instructions);
+
+ void createNop(bool hasShortDelaySlot, SMLoc IDLoc,
+ SmallVectorImpl<MCInst> &Instructions);
+
bool reportParseError(Twine ErrorMsg);
bool reportParseError(SMLoc Loc, Twine ErrorMsg);
bool parseDirectiveNaN();
bool parseDirectiveSet();
bool parseDirectiveOption();
+ bool parseInsnDirective();
bool parseSetAtDirective();
bool parseSetNoAtDirective();
bool parseFpABIValue(MipsABIFlagsSection::FpABIKind &FpABI,
StringRef Directive);
+ bool parseInternalDirectiveReallowModule();
+
MCSymbolRefExpr::VariantKind getVariantKind(StringRef Symbol);
bool eatComma(StringRef ErrorStr);
unsigned getGPR(int RegNo);
- int getATReg(SMLoc Loc);
+ /// Returns the internal register number for the current AT. Also checks if
+ /// the current AT is unavailable (set to $0) and gives an error if it is.
+ /// This should be used in pseudo-instruction expansions which need AT.
+ unsigned getATReg(SMLoc Loc);
bool processInstruction(MCInst &Inst, SMLoc IDLoc,
SmallVectorImpl<MCInst> &Instructions);
MipsAsmParser(MCSubtargetInfo &sti, MCAsmParser &parser,
const MCInstrInfo &MII, const MCTargetOptions &Options)
- : MCTargetAsmParser(), STI(sti) {
+ : MCTargetAsmParser(), STI(sti),
+ ABI(MipsABIInfo::computeTargetABI(Triple(sti.getTargetTriple()),
+ sti.getCPU(), Options)) {
MCAsmParserExtension::Initialize(parser);
+ parser.addAliasForDirective(".asciiz", ".asciz");
+
// Initialize the set of available features.
setAvailableFeatures(ComputeAvailableFeatures(STI.getFeatureBits()));
getTargetStreamer().updateABIInfo(*this);
- // Assert exactly one ABI was chosen.
- assert((((STI.getFeatureBits() & Mips::FeatureO32) != 0) +
- ((STI.getFeatureBits() & Mips::FeatureEABI) != 0) +
- ((STI.getFeatureBits() & Mips::FeatureN32) != 0) +
- ((STI.getFeatureBits() & Mips::FeatureN64) != 0)) == 1);
-
if (!isABI_O32() && !useOddSPReg() != 0)
report_fatal_error("-mno-odd-spreg requires the O32 ABI");
bool isGP64bit() const { return STI.getFeatureBits() & Mips::FeatureGP64Bit; }
bool isFP64bit() const { return STI.getFeatureBits() & Mips::FeatureFP64Bit; }
- bool isABI_N32() const { return STI.getFeatureBits() & Mips::FeatureN32; }
- bool isABI_N64() const { return STI.getFeatureBits() & Mips::FeatureN64; }
- bool isABI_O32() const { return STI.getFeatureBits() & Mips::FeatureO32; }
+ const MipsABIInfo &getABI() const { return ABI; }
+ bool isABI_N32() const { return ABI.IsN32(); }
+ bool isABI_N64() const { return ABI.IsN64(); }
+ bool isABI_O32() const { return ABI.IsO32(); }
bool isABI_FPXX() const { return STI.getFeatureBits() & Mips::FeatureFPXX; }
bool useOddSPReg() const {
bool hasMips64r2() const {
return (STI.getFeatureBits() & Mips::FeatureMips64r2);
}
+ bool hasMips32r3() const {
+ return (STI.getFeatureBits() & Mips::FeatureMips32r3);
+ }
+ bool hasMips64r3() const {
+ return (STI.getFeatureBits() & Mips::FeatureMips64r3);
+ }
+ bool hasMips32r5() const {
+ return (STI.getFeatureBits() & Mips::FeatureMips32r5);
+ }
+ bool hasMips64r5() const {
+ return (STI.getFeatureBits() & Mips::FeatureMips64r5);
+ }
bool hasMips32r6() const {
return (STI.getFeatureBits() & Mips::FeatureMips32r6);
}
bool hasMips64r6() const {
return (STI.getFeatureBits() & Mips::FeatureMips64r6);
}
+ bool hasCnMips() const {
+ return (STI.getFeatureBits() & Mips::FeatureCnMips);
+ }
bool hasDSP() const { return (STI.getFeatureBits() & Mips::FeatureDSP); }
bool hasDSPR2() const { return (STI.getFeatureBits() & Mips::FeatureDSPR2); }
bool hasMSA() const { return (STI.getFeatureBits() & Mips::FeatureMSA); }
// TODO: see how can we get this info.
bool abiUsesSoftFloat() const { return false; }
- /// Warn if RegNo is the current assembler temporary.
- void warnIfAssemblerTemporary(int RegNo, SMLoc Loc);
+ /// Warn if RegIndex is the same as the current AT.
+ void warnIfRegIndexIsAT(unsigned RegIndex, SMLoc Loc);
};
}
k_Memory, /// Base + Offset Memory Address
k_PhysRegister, /// A physical register from the Mips namespace
k_RegisterIndex, /// A register index in one or more RegKind.
- k_Token /// A simple token
+ k_Token, /// A simple token
+ k_RegList, /// A physical register list
+ k_RegPair /// A pair of physical register
} Kind;
public:
const MCExpr *Off;
};
+ struct RegListOp {
+ SmallVector<unsigned, 10> *List;
+ };
+
union {
struct Token Tok;
struct PhysRegOp PhysReg;
struct RegIdxOp RegIdx;
struct ImmOp Imm;
struct MemOp Mem;
+ struct RegListOp RegList;
};
SMLoc StartLoc, EndLoc;
/// target.
unsigned getGPR32Reg() const {
assert(isRegIdx() && (RegIdx.Kind & RegKind_GPR) && "Invalid access!");
- AsmParser.warnIfAssemblerTemporary(RegIdx.Index, StartLoc);
+ AsmParser.warnIfRegIndexIsAT(RegIdx.Index, StartLoc);
unsigned ClassID = Mips::GPR32RegClassID;
return RegIdx.RegInfo->getRegClass(ClassID).getRegister(RegIdx.Index);
}
Inst.addOperand(MCOperand::CreateReg(getGPRMM16Reg()));
}
+ void addGPRMM16AsmRegZeroOperands(MCInst &Inst, unsigned N) const {
+ assert(N == 1 && "Invalid number of operands!");
+ Inst.addOperand(MCOperand::CreateReg(getGPRMM16Reg()));
+ }
+
+ void addGPRMM16AsmRegMovePOperands(MCInst &Inst, unsigned N) const {
+ assert(N == 1 && "Invalid number of operands!");
+ Inst.addOperand(MCOperand::CreateReg(getGPRMM16Reg()));
+ }
+
/// Render the operand to an MCInst as a GPR64
/// Asserts if the wrong number of operands are requested, or the operand
/// is not a k_RegisterIndex compatible with RegKind_GPR
addExpr(Inst, Expr);
}
+ void addMicroMipsMemOperands(MCInst &Inst, unsigned N) const {
+ assert(N == 2 && "Invalid number of operands!");
+
+ Inst.addOperand(MCOperand::CreateReg(getMemBase()->getGPRMM16Reg()));
+
+ const MCExpr *Expr = getMemOff();
+ addExpr(Inst, Expr);
+ }
+
+ void addRegListOperands(MCInst &Inst, unsigned N) const {
+ assert(N == 1 && "Invalid number of operands!");
+
+ for (auto RegNo : getRegList())
+ Inst.addOperand(MCOperand::CreateReg(RegNo));
+ }
+
+ void addRegPairOperands(MCInst &Inst, unsigned N) const {
+ assert(N == 2 && "Invalid number of operands!");
+ unsigned RegNo = getRegPair();
+ Inst.addOperand(MCOperand::CreateReg(RegNo++));
+ Inst.addOperand(MCOperand::CreateReg(RegNo));
+ }
+
+ void addMovePRegPairOperands(MCInst &Inst, unsigned N) const {
+ assert(N == 2 && "Invalid number of operands!");
+ for (auto RegNo : getRegList())
+ Inst.addOperand(MCOperand::CreateReg(RegNo));
+ }
+
bool isReg() const override {
// As a special case until we sort out the definition of div/divu, pretend
// that $0/$zero are k_PhysRegister so that MCK_ZERO works correctly.
template <unsigned Bits> bool isMemWithSimmOffset() const {
return isMem() && isConstantMemOff() && isInt<Bits>(getConstantMemOff());
}
+ bool isMemWithGRPMM16Base() const {
+ return isMem() && getMemBase()->isMM16AsmReg();
+ }
+ template <unsigned Bits> bool isMemWithUimmOffsetSP() const {
+ return isMem() && isConstantMemOff() && isUInt<Bits>(getConstantMemOff())
+ && getMemBase()->isRegIdx() && (getMemBase()->getGPR32Reg() == Mips::SP);
+ }
+ template <unsigned Bits> bool isMemWithUimmWordAlignedOffsetSP() const {
+ return isMem() && isConstantMemOff() && isUInt<Bits>(getConstantMemOff())
+ && (getConstantMemOff() % 4 == 0) && getMemBase()->isRegIdx()
+ && (getMemBase()->getGPR32Reg() == Mips::SP);
+ }
+ bool isRegList16() const {
+ if (!isRegList())
+ return false;
+
+ int Size = RegList.List->size();
+ if (Size < 2 || Size > 5 || *RegList.List->begin() != Mips::S0 ||
+ RegList.List->back() != Mips::RA)
+ return false;
+
+ int PrevReg = *RegList.List->begin();
+ for (int i = 1; i < Size - 1; i++) {
+ int Reg = (*(RegList.List))[i];
+ if ( Reg != PrevReg + 1)
+ return false;
+ PrevReg = Reg;
+ }
+
+ return true;
+ }
bool isInvNum() const { return Kind == k_Immediate; }
bool isLSAImm() const {
if (!isConstantImm())
int64_t Val = getConstantImm();
return 1 <= Val && Val <= 4;
}
+ bool isRegList() const { return Kind == k_RegList; }
+ bool isMovePRegPair() const {
+ if (Kind != k_RegList || RegList.List->size() != 2)
+ return false;
+
+ unsigned R0 = RegList.List->front();
+ unsigned R1 = RegList.List->back();
+
+ if ((R0 == Mips::A1 && R1 == Mips::A2) ||
+ (R0 == Mips::A1 && R1 == Mips::A3) ||
+ (R0 == Mips::A2 && R1 == Mips::A3) ||
+ (R0 == Mips::A0 && R1 == Mips::S5) ||
+ (R0 == Mips::A0 && R1 == Mips::S6) ||
+ (R0 == Mips::A0 && R1 == Mips::A1) ||
+ (R0 == Mips::A0 && R1 == Mips::A2) ||
+ (R0 == Mips::A0 && R1 == Mips::A3))
+ return true;
+
+ return false;
+ }
StringRef getToken() const {
assert(Kind == k_Token && "Invalid access!");
return StringRef(Tok.Data, Tok.Length);
}
+ bool isRegPair() const { return Kind == k_RegPair; }
unsigned getReg() const override {
// As a special case until we sort out the definition of div/divu, pretend
return static_cast<const MCConstantExpr *>(getMemOff())->getValue();
}
+ const SmallVectorImpl<unsigned> &getRegList() const {
+ assert((Kind == k_RegList) && "Invalid access!");
+ return *(RegList.List);
+ }
+
+ unsigned getRegPair() const {
+ assert((Kind == k_RegPair) && "Invalid access!");
+ return RegIdx.Index;
+ }
+
static std::unique_ptr<MipsOperand> CreateToken(StringRef Str, SMLoc S,
MipsAsmParser &Parser) {
auto Op = make_unique<MipsOperand>(k_Token, Parser);
return Op;
}
+ static std::unique_ptr<MipsOperand>
+ CreateRegList(SmallVectorImpl<unsigned> &Regs, SMLoc StartLoc, SMLoc EndLoc,
+ MipsAsmParser &Parser) {
+ assert (Regs.size() > 0 && "Empty list not allowed");
+
+ auto Op = make_unique<MipsOperand>(k_RegList, Parser);
+ Op->RegList.List = new SmallVector<unsigned, 10>(Regs.begin(), Regs.end());
+ Op->StartLoc = StartLoc;
+ Op->EndLoc = EndLoc;
+ return Op;
+ }
+
+ static std::unique_ptr<MipsOperand>
+ CreateRegPair(unsigned RegNo, SMLoc S, SMLoc E, MipsAsmParser &Parser) {
+ auto Op = make_unique<MipsOperand>(k_RegPair, Parser);
+ Op->RegIdx.Index = RegNo;
+ Op->StartLoc = S;
+ Op->EndLoc = E;
+ return Op;
+ }
+
bool isGPRAsmReg() const {
return isRegIdx() && RegIdx.Kind & RegKind_GPR && RegIdx.Index <= 31;
}
return ((RegIdx.Index >= 2 && RegIdx.Index <= 7)
|| RegIdx.Index == 16 || RegIdx.Index == 17);
}
+ bool isMM16AsmRegZero() const {
+ if (!(isRegIdx() && RegIdx.Kind))
+ return false;
+ return (RegIdx.Index == 0 ||
+ (RegIdx.Index >= 2 && RegIdx.Index <= 7) ||
+ RegIdx.Index == 17);
+ }
+ bool isMM16AsmRegMoveP() const {
+ if (!(isRegIdx() && RegIdx.Kind))
+ return false;
+ return (RegIdx.Index == 0 || (RegIdx.Index >= 2 && RegIdx.Index <= 3) ||
+ (RegIdx.Index >= 16 && RegIdx.Index <= 20));
+ }
bool isFGRAsmReg() const {
// AFGR64 is $0-$15 but we handle this in getAFGR64()
return isRegIdx() && RegIdx.Kind & RegKind_FGR && RegIdx.Index <= 31;
case k_Memory:
delete Mem.Base;
break;
+ case k_RegList:
+ delete RegList.List;
case k_PhysRegister:
case k_RegisterIndex:
case k_Token:
+ case k_RegPair:
break;
}
}
case k_Token:
OS << Tok.Data;
break;
+ case k_RegList:
+ OS << "RegList< ";
+ for (auto Reg : (*RegList.List))
+ OS << Reg << " ";
+ OS << ">";
+ break;
+ case k_RegPair:
+ OS << "RegPair<" << RegIdx.Index << "," << RegIdx.Index + 1 << ">";
+ break;
}
}
}; // class MipsOperand
switch (Opcode) {
default:
break;
+ case Mips::BBIT0:
+ case Mips::BBIT032:
+ case Mips::BBIT1:
+ case Mips::BBIT132:
+ assert(hasCnMips() && "instruction only valid for octeon cpus");
+ // Fall through
+
case Mips::BEQ:
case Mips::BNE:
case Mips::BEQ_MM:
1LL << (inMicroMipsMode() ? 1 : 2)))
return Error(IDLoc, "branch to misaligned address");
break;
+ case Mips::BEQZ16_MM:
+ case Mips::BNEZ16_MM:
+ assert(MCID.getNumOperands() == 2 && "unexpected number of operands");
+ Offset = Inst.getOperand(1);
+ if (!Offset.isImm())
+ break; // We'll deal with this situation later on when applying fixups.
+ if (!isIntN(8, Offset.getImm()))
+ return Error(IDLoc, "branch target out of range");
+ if (OffsetToAlignment(Offset.getImm(), 2LL))
+ return Error(IDLoc, "branch to misaligned address");
+ break;
}
}
"nop instruction");
}
- if (MCID.hasDelaySlot() && AssemblerOptions.back()->isReorder()) {
- // If this instruction has a delay slot and .set reorder is active,
- // emit a NOP after it.
- Instructions.push_back(Inst);
- MCInst NopInst;
- if (hasShortDelaySlot(Inst.getOpcode())) {
- NopInst.setOpcode(Mips::MOVE16_MM);
- NopInst.addOperand(MCOperand::CreateReg(Mips::ZERO));
- NopInst.addOperand(MCOperand::CreateReg(Mips::ZERO));
- } else {
- NopInst.setOpcode(Mips::SLL);
- NopInst.addOperand(MCOperand::CreateReg(Mips::ZERO));
- NopInst.addOperand(MCOperand::CreateReg(Mips::ZERO));
- NopInst.addOperand(MCOperand::CreateImm(0));
+ if (hasCnMips()) {
+ const unsigned Opcode = Inst.getOpcode();
+ MCOperand Opnd;
+ int Imm;
+
+ switch (Opcode) {
+ default:
+ break;
+
+ case Mips::BBIT0:
+ case Mips::BBIT032:
+ case Mips::BBIT1:
+ case Mips::BBIT132:
+ assert(MCID.getNumOperands() == 3 && "unexpected number of operands");
+ // The offset is handled above
+ Opnd = Inst.getOperand(1);
+ if (!Opnd.isImm())
+ return Error(IDLoc, "expected immediate operand kind");
+ Imm = Opnd.getImm();
+ if (Imm < 0 || Imm > (Opcode == Mips::BBIT0 ||
+ Opcode == Mips::BBIT1 ? 63 : 31))
+ return Error(IDLoc, "immediate operand value out of range");
+ if (Imm > 31) {
+ Inst.setOpcode(Opcode == Mips::BBIT0 ? Mips::BBIT032
+ : Mips::BBIT132);
+ Inst.getOperand(1).setImm(Imm - 32);
+ }
+ break;
+
+ case Mips::CINS:
+ case Mips::CINS32:
+ case Mips::EXTS:
+ case Mips::EXTS32:
+ assert(MCID.getNumOperands() == 4 && "unexpected number of operands");
+ // Check length
+ Opnd = Inst.getOperand(3);
+ if (!Opnd.isImm())
+ return Error(IDLoc, "expected immediate operand kind");
+ Imm = Opnd.getImm();
+ if (Imm < 0 || Imm > 31)
+ return Error(IDLoc, "immediate operand value out of range");
+ // Check position
+ Opnd = Inst.getOperand(2);
+ if (!Opnd.isImm())
+ return Error(IDLoc, "expected immediate operand kind");
+ Imm = Opnd.getImm();
+ if (Imm < 0 || Imm > (Opcode == Mips::CINS ||
+ Opcode == Mips::EXTS ? 63 : 31))
+ return Error(IDLoc, "immediate operand value out of range");
+ if (Imm > 31) {
+ Inst.setOpcode(Opcode == Mips::CINS ? Mips::CINS32 : Mips::EXTS32);
+ Inst.getOperand(2).setImm(Imm - 32);
+ }
+ break;
+
+ case Mips::SEQi:
+ case Mips::SNEi:
+ assert(MCID.getNumOperands() == 3 && "unexpected number of operands");
+ Opnd = Inst.getOperand(2);
+ if (!Opnd.isImm())
+ return Error(IDLoc, "expected immediate operand kind");
+ Imm = Opnd.getImm();
+ if (!isInt<10>(Imm))
+ return Error(IDLoc, "immediate operand value out of range");
+ break;
}
- Instructions.push_back(NopInst);
- return false;
}
if (MCID.mayLoad() || MCID.mayStore()) {
} // for
} // if load/store
- // TODO: Handle this with the AsmOperandClass.PredicateMethod.
if (inMicroMipsMode()) {
+ if (MCID.mayLoad()) {
+ // Try to create 16-bit GP relative load instruction.
+ for (unsigned i = 0; i < MCID.getNumOperands(); i++) {
+ const MCOperandInfo &OpInfo = MCID.OpInfo[i];
+ if ((OpInfo.OperandType == MCOI::OPERAND_MEMORY) ||
+ (OpInfo.OperandType == MCOI::OPERAND_UNKNOWN)) {
+ MCOperand &Op = Inst.getOperand(i);
+ if (Op.isImm()) {
+ int MemOffset = Op.getImm();
+ MCOperand &DstReg = Inst.getOperand(0);
+ MCOperand &BaseReg = Inst.getOperand(1);
+ if (isIntN(9, MemOffset) && (MemOffset % 4 == 0) &&
+ getContext().getRegisterInfo()->getRegClass(
+ Mips::GPRMM16RegClassID).contains(DstReg.getReg()) &&
+ BaseReg.getReg() == Mips::GP) {
+ MCInst TmpInst;
+ TmpInst.setLoc(IDLoc);
+ TmpInst.setOpcode(Mips::LWGP_MM);
+ TmpInst.addOperand(MCOperand::CreateReg(DstReg.getReg()));
+ TmpInst.addOperand(MCOperand::CreateReg(Mips::GP));
+ TmpInst.addOperand(MCOperand::CreateImm(MemOffset));
+ Instructions.push_back(TmpInst);
+ return false;
+ }
+ }
+ }
+ } // for
+ } // if load
+
+ // TODO: Handle this with the AsmOperandClass.PredicateMethod.
+
MCOperand Opnd;
int Imm;
Imm == 64 || Imm == 255 || Imm == 32768 || Imm == 65535))
return Error(IDLoc, "immediate operand value out of range");
break;
+ case Mips::LBU16_MM:
+ Opnd = Inst.getOperand(2);
+ if (!Opnd.isImm())
+ return Error(IDLoc, "expected immediate operand kind");
+ Imm = Opnd.getImm();
+ if (Imm < -1 || Imm > 14)
+ return Error(IDLoc, "immediate operand value out of range");
+ break;
+ case Mips::SB16_MM:
+ Opnd = Inst.getOperand(2);
+ if (!Opnd.isImm())
+ return Error(IDLoc, "expected immediate operand kind");
+ Imm = Opnd.getImm();
+ if (Imm < 0 || Imm > 15)
+ return Error(IDLoc, "immediate operand value out of range");
+ break;
+ case Mips::LHU16_MM:
+ case Mips::SH16_MM:
+ Opnd = Inst.getOperand(2);
+ if (!Opnd.isImm())
+ return Error(IDLoc, "expected immediate operand kind");
+ Imm = Opnd.getImm();
+ if (Imm < 0 || Imm > 30 || (Imm % 2 != 0))
+ return Error(IDLoc, "immediate operand value out of range");
+ break;
+ case Mips::LW16_MM:
+ case Mips::SW16_MM:
+ Opnd = Inst.getOperand(2);
+ if (!Opnd.isImm())
+ return Error(IDLoc, "expected immediate operand kind");
+ Imm = Opnd.getImm();
+ if (Imm < 0 || Imm > 60 || (Imm % 4 != 0))
+ return Error(IDLoc, "immediate operand value out of range");
+ break;
+ case Mips::CACHE:
+ case Mips::PREF:
+ Opnd = Inst.getOperand(2);
+ if (!Opnd.isImm())
+ return Error(IDLoc, "expected immediate operand kind");
+ Imm = Opnd.getImm();
+ if (!isUInt<5>(Imm))
+ return Error(IDLoc, "immediate operand value out of range");
+ break;
+ case Mips::ADDIUPC_MM:
+ MCOperand Opnd = Inst.getOperand(1);
+ if (!Opnd.isImm())
+ return Error(IDLoc, "expected immediate operand kind");
+ int Imm = Opnd.getImm();
+ if ((Imm % 4 != 0) || !isIntN(25, Imm))
+ return Error(IDLoc, "immediate operand value out of range");
+ break;
}
}
- if (needsExpansion(Inst))
- return expandInstruction(Inst, IDLoc, Instructions);
- else
+ if (needsExpansion(Inst)) {
+ if (expandInstruction(Inst, IDLoc, Instructions))
+ return true;
+ } else
Instructions.push_back(Inst);
+ // If this instruction has a delay slot and .set reorder is active,
+ // emit a NOP after it.
+ if (MCID.hasDelaySlot() && AssemblerOptions.back()->isReorder())
+ createNop(hasShortDelaySlot(Inst.getOpcode()), IDLoc, Instructions);
+
return false;
}
bool MipsAsmParser::needsExpansion(MCInst &Inst) {
switch (Inst.getOpcode()) {
- case Mips::LoadImm32Reg:
- case Mips::LoadAddr32Imm:
- case Mips::LoadAddr32Reg:
- case Mips::LoadImm64Reg:
+ case Mips::LoadImm32:
+ case Mips::LoadImm64:
+ case Mips::LoadAddrImm32:
+ case Mips::LoadAddrReg32:
+ case Mips::B_MM_Pseudo:
+ case Mips::LWM_MM:
+ case Mips::SWM_MM:
+ case Mips::JalOneReg:
+ case Mips::JalTwoReg:
return true;
default:
return false;
bool MipsAsmParser::expandInstruction(MCInst &Inst, SMLoc IDLoc,
SmallVectorImpl<MCInst> &Instructions) {
switch (Inst.getOpcode()) {
- default:
- assert(0 && "unimplemented expansion");
- return true;
- case Mips::LoadImm32Reg:
+ default: llvm_unreachable("unimplemented expansion");
+ case Mips::LoadImm32:
return expandLoadImm(Inst, IDLoc, Instructions);
- case Mips::LoadImm64Reg:
+ case Mips::LoadImm64:
if (!isGP64bit()) {
Error(IDLoc, "instruction requires a 64-bit architecture");
return true;
}
return expandLoadImm(Inst, IDLoc, Instructions);
- case Mips::LoadAddr32Imm:
+ case Mips::LoadAddrImm32:
return expandLoadAddressImm(Inst, IDLoc, Instructions);
- case Mips::LoadAddr32Reg:
+ case Mips::LoadAddrReg32:
return expandLoadAddressReg(Inst, IDLoc, Instructions);
+ case Mips::B_MM_Pseudo:
+ return expandUncondBranchMMPseudo(Inst, IDLoc, Instructions);
+ case Mips::SWM_MM:
+ case Mips::LWM_MM:
+ return expandLoadStoreMultiple(Inst, IDLoc, Instructions);
+ case Mips::JalOneReg:
+ case Mips::JalTwoReg:
+ return expandJalWithRegs(Inst, IDLoc, Instructions);
}
}
}
}
+bool MipsAsmParser::expandJalWithRegs(MCInst &Inst, SMLoc IDLoc,
+ SmallVectorImpl<MCInst> &Instructions) {
+ // Create a JALR instruction which is going to replace the pseudo-JAL.
+ MCInst JalrInst;
+ JalrInst.setLoc(IDLoc);
+ const MCOperand FirstRegOp = Inst.getOperand(0);
+ const unsigned Opcode = Inst.getOpcode();
+
+ if (Opcode == Mips::JalOneReg) {
+ // jal $rs => jalr $rs
+ if (inMicroMipsMode()) {
+ JalrInst.setOpcode(Mips::JALR16_MM);
+ JalrInst.addOperand(FirstRegOp);
+ } else {
+ JalrInst.setOpcode(Mips::JALR);
+ JalrInst.addOperand(MCOperand::CreateReg(Mips::RA));
+ JalrInst.addOperand(FirstRegOp);
+ }
+ } else if (Opcode == Mips::JalTwoReg) {
+ // jal $rd, $rs => jalr $rd, $rs
+ JalrInst.setOpcode(inMicroMipsMode() ? Mips::JALR_MM : Mips::JALR);
+ JalrInst.addOperand(FirstRegOp);
+ const MCOperand SecondRegOp = Inst.getOperand(1);
+ JalrInst.addOperand(SecondRegOp);
+ }
+ Instructions.push_back(JalrInst);
+
+ // If .set reorder is active, emit a NOP after it.
+ if (AssemblerOptions.back()->isReorder()) {
+ // This is a 32-bit NOP because these 2 pseudo-instructions
+ // do not have a short delay slot.
+ MCInst NopInst;
+ NopInst.setOpcode(Mips::SLL);
+ NopInst.addOperand(MCOperand::CreateReg(Mips::ZERO));
+ NopInst.addOperand(MCOperand::CreateReg(Mips::ZERO));
+ NopInst.addOperand(MCOperand::CreateImm(0));
+ Instructions.push_back(NopInst);
+ }
+
+ return false;
+}
+
bool MipsAsmParser::expandLoadImm(MCInst &Inst, SMLoc IDLoc,
SmallVectorImpl<MCInst> &Instructions) {
MCInst tmpInst;
assert(RegOp.isReg() && "expected register operand kind");
int64_t ImmValue = ImmOp.getImm();
+ unsigned Reg = RegOp.getReg();
tmpInst.setLoc(IDLoc);
// FIXME: gas has a special case for values that are 000...1111, which
// becomes a li -1 and then a dsrl
if (0 <= ImmValue && ImmValue <= 65535) {
- // For 0 <= j <= 65535.
+ // For unsigned and positive signed 16-bit values (0 <= j <= 65535):
// li d,j => ori d,$zero,j
tmpInst.setOpcode(Mips::ORi);
- tmpInst.addOperand(MCOperand::CreateReg(RegOp.getReg()));
+ tmpInst.addOperand(MCOperand::CreateReg(Reg));
tmpInst.addOperand(MCOperand::CreateReg(Mips::ZERO));
tmpInst.addOperand(MCOperand::CreateImm(ImmValue));
Instructions.push_back(tmpInst);
} else if (ImmValue < 0 && ImmValue >= -32768) {
- // For -32768 <= j < 0.
+ // For negative signed 16-bit values (-32768 <= j < 0):
// li d,j => addiu d,$zero,j
tmpInst.setOpcode(Mips::ADDiu);
- tmpInst.addOperand(MCOperand::CreateReg(RegOp.getReg()));
+ tmpInst.addOperand(MCOperand::CreateReg(Reg));
tmpInst.addOperand(MCOperand::CreateReg(Mips::ZERO));
tmpInst.addOperand(MCOperand::CreateImm(ImmValue));
Instructions.push_back(tmpInst);
} else if ((ImmValue & 0xffffffff) == ImmValue) {
- // For any value of j that is representable as a 32-bit integer, create
- // a sequence of:
+ // For all other values which are representable as a 32-bit integer:
// li d,j => lui d,hi16(j)
// ori d,d,lo16(j)
tmpInst.setOpcode(Mips::LUi);
- tmpInst.addOperand(MCOperand::CreateReg(RegOp.getReg()));
+ tmpInst.addOperand(MCOperand::CreateReg(Reg));
tmpInst.addOperand(MCOperand::CreateImm((ImmValue & 0xffff0000) >> 16));
Instructions.push_back(tmpInst);
- createShiftOr<0, false>(ImmValue, RegOp.getReg(), IDLoc, Instructions);
+ createShiftOr<0, false>(ImmValue, Reg, IDLoc, Instructions);
} else if ((ImmValue & (0xffffLL << 48)) == 0) {
if (!isGP64bit()) {
Error(IDLoc, "instruction requires a 64-bit architecture");
// <- hi16 -> <- lo16 ->
// _________________________________
// | | | |
- // | 16-bytes | 16-bytes | 16-bytes |
+ // | 16-bits | 16-bits | 16-bits |
// |__________|__________|__________|
//
- // For any value of j that is representable as a 48-bit integer, create
- // a sequence of:
+ // For any 64-bit value that is representable as a 48-bit integer:
// li d,j => lui d,hi16(j)
// ori d,d,hi16(lo32(j))
// dsll d,d,16
// ori d,d,lo16(lo32(j))
tmpInst.setOpcode(Mips::LUi);
- tmpInst.addOperand(MCOperand::CreateReg(RegOp.getReg()));
+ tmpInst.addOperand(MCOperand::CreateReg(Reg));
tmpInst.addOperand(
MCOperand::CreateImm((ImmValue & (0xffffLL << 32)) >> 32));
Instructions.push_back(tmpInst);
- createShiftOr<16, false>(ImmValue, RegOp.getReg(), IDLoc, Instructions);
- createShiftOr<0, true>(ImmValue, RegOp.getReg(), IDLoc, Instructions);
+ createShiftOr<16, false>(ImmValue, Reg, IDLoc, Instructions);
+ createShiftOr<0, true>(ImmValue, Reg, IDLoc, Instructions);
} else {
if (!isGP64bit()) {
Error(IDLoc, "instruction requires a 64-bit architecture");
// <- hi16 -> <- lo16 ->
// ___________________________________________
// | | | | |
- // | 16-bytes | 16-bytes | 16-bytes | 16-bytes |
+ // | 16-bits | 16-bits | 16-bits | 16-bits |
// |__________|__________|__________|__________|
//
- // For any value of j that isn't representable as a 48-bit integer.
+ // For all other values which are representable as a 64-bit integer:
// li d,j => lui d,hi16(j)
// ori d,d,lo16(hi32(j))
// dsll d,d,16
// dsll d,d,16
// ori d,d,lo16(lo32(j))
tmpInst.setOpcode(Mips::LUi);
- tmpInst.addOperand(MCOperand::CreateReg(RegOp.getReg()));
+ tmpInst.addOperand(MCOperand::CreateReg(Reg));
tmpInst.addOperand(
MCOperand::CreateImm((ImmValue & (0xffffLL << 48)) >> 48));
Instructions.push_back(tmpInst);
- createShiftOr<32, false>(ImmValue, RegOp.getReg(), IDLoc, Instructions);
- createShiftOr<16, true>(ImmValue, RegOp.getReg(), IDLoc, Instructions);
- createShiftOr<0, true>(ImmValue, RegOp.getReg(), IDLoc, Instructions);
+ createShiftOr<32, false>(ImmValue, Reg, IDLoc, Instructions);
+ createShiftOr<16, true>(ImmValue, Reg, IDLoc, Instructions);
+ createShiftOr<0, true>(ImmValue, Reg, IDLoc, Instructions);
}
return false;
}
}
}
+bool MipsAsmParser::expandUncondBranchMMPseudo(
+ MCInst &Inst, SMLoc IDLoc, SmallVectorImpl<MCInst> &Instructions) {
+ assert(getInstDesc(Inst.getOpcode()).getNumOperands() == 1 &&
+ "unexpected number of operands");
+
+ MCOperand Offset = Inst.getOperand(0);
+ if (Offset.isExpr()) {
+ Inst.clear();
+ Inst.setOpcode(Mips::BEQ_MM);
+ Inst.addOperand(MCOperand::CreateReg(Mips::ZERO));
+ Inst.addOperand(MCOperand::CreateReg(Mips::ZERO));
+ Inst.addOperand(MCOperand::CreateExpr(Offset.getExpr()));
+ } else {
+ assert(Offset.isImm() && "expected immediate operand kind");
+ if (isIntN(11, Offset.getImm())) {
+ // If offset fits into 11 bits then this instruction becomes microMIPS
+ // 16-bit unconditional branch instruction.
+ Inst.setOpcode(Mips::B16_MM);
+ } else {
+ if (!isIntN(17, Offset.getImm()))
+ Error(IDLoc, "branch target out of range");
+ if (OffsetToAlignment(Offset.getImm(), 1LL << 1))
+ Error(IDLoc, "branch to misaligned address");
+ Inst.clear();
+ Inst.setOpcode(Mips::BEQ_MM);
+ Inst.addOperand(MCOperand::CreateReg(Mips::ZERO));
+ Inst.addOperand(MCOperand::CreateReg(Mips::ZERO));
+ Inst.addOperand(MCOperand::CreateImm(Offset.getImm()));
+ }
+ }
+ Instructions.push_back(Inst);
+
+ // If .set reorder is active, emit a NOP after the branch instruction.
+ if (AssemblerOptions.back()->isReorder())
+ createNop(true, IDLoc, Instructions);
+
+ return false;
+}
+
void MipsAsmParser::expandMemInst(MCInst &Inst, SMLoc IDLoc,
SmallVectorImpl<MCInst> &Instructions,
bool isLoad, bool isImmOpnd) {
if (isLoad && IsGPR && (BaseRegNum != RegOpNum))
TmpRegNum = RegOpNum;
else {
- int AT = getATReg(IDLoc);
// At this point we need AT to perform the expansions and we exit if it is
// not available.
- if (!AT)
+ TmpRegNum = getATReg(IDLoc);
+ if (!TmpRegNum)
return;
- TmpRegNum = getReg(
- (isGP64bit()) ? Mips::GPR64RegClassID : Mips::GPR32RegClassID, AT);
}
TempInst.setOpcode(Mips::LUi);
// Prepare TempInst for next instruction.
TempInst.clear();
// Add temp register to base.
- TempInst.setOpcode(Mips::ADDu);
- TempInst.addOperand(MCOperand::CreateReg(TmpRegNum));
- TempInst.addOperand(MCOperand::CreateReg(TmpRegNum));
- TempInst.addOperand(MCOperand::CreateReg(BaseRegNum));
- Instructions.push_back(TempInst);
- TempInst.clear();
+ if (BaseRegNum != Mips::ZERO) {
+ TempInst.setOpcode(Mips::ADDu);
+ TempInst.addOperand(MCOperand::CreateReg(TmpRegNum));
+ TempInst.addOperand(MCOperand::CreateReg(TmpRegNum));
+ TempInst.addOperand(MCOperand::CreateReg(BaseRegNum));
+ Instructions.push_back(TempInst);
+ TempInst.clear();
+ }
// And finally, create original instruction with low part
// of offset and new base.
TempInst.setOpcode(Inst.getOpcode());
TempInst.clear();
}
+bool
+MipsAsmParser::expandLoadStoreMultiple(MCInst &Inst, SMLoc IDLoc,
+ SmallVectorImpl<MCInst> &Instructions) {
+ unsigned OpNum = Inst.getNumOperands();
+ unsigned Opcode = Inst.getOpcode();
+ unsigned NewOpcode = Opcode == Mips::SWM_MM ? Mips::SWM32_MM : Mips::LWM32_MM;
+
+ assert (Inst.getOperand(OpNum - 1).isImm() &&
+ Inst.getOperand(OpNum - 2).isReg() &&
+ Inst.getOperand(OpNum - 3).isReg() && "Invalid instruction operand.");
+
+ if (OpNum < 8 && Inst.getOperand(OpNum - 1).getImm() <= 60 &&
+ Inst.getOperand(OpNum - 1).getImm() >= 0 &&
+ Inst.getOperand(OpNum - 2).getReg() == Mips::SP &&
+ Inst.getOperand(OpNum - 3).getReg() == Mips::RA)
+ // It can be implemented as SWM16 or LWM16 instruction.
+ NewOpcode = Opcode == Mips::SWM_MM ? Mips::SWM16_MM : Mips::LWM16_MM;
+
+ Inst.setOpcode(NewOpcode);
+ Instructions.push_back(Inst);
+ return false;
+}
+
+void MipsAsmParser::createNop(bool hasShortDelaySlot, SMLoc IDLoc,
+ SmallVectorImpl<MCInst> &Instructions) {
+ MCInst NopInst;
+ if (hasShortDelaySlot) {
+ NopInst.setOpcode(Mips::MOVE16_MM);
+ NopInst.addOperand(MCOperand::CreateReg(Mips::ZERO));
+ NopInst.addOperand(MCOperand::CreateReg(Mips::ZERO));
+ } else {
+ NopInst.setOpcode(Mips::SLL);
+ NopInst.addOperand(MCOperand::CreateReg(Mips::ZERO));
+ NopInst.addOperand(MCOperand::CreateReg(Mips::ZERO));
+ NopInst.addOperand(MCOperand::CreateImm(0));
+ }
+ Instructions.push_back(NopInst);
+}
+
unsigned MipsAsmParser::checkTargetMatchPredicate(MCInst &Inst) {
// As described by the Mips32r2 spec, the registers Rd and Rs for
// jalr.hb must be different.
MatchInstructionImpl(Operands, Inst, ErrorInfo, MatchingInlineAsm);
switch (MatchResult) {
- default:
- break;
case Match_Success: {
if (processInstruction(Inst, IDLoc, Instructions))
return true;
case Match_RequiresDifferentSrcAndDst:
return Error(IDLoc, "source and destination must be different");
}
- return true;
+
+ llvm_unreachable("Implement any new match types added!");
}
-void MipsAsmParser::warnIfAssemblerTemporary(int RegIndex, SMLoc Loc) {
- if ((RegIndex != 0) &&
- ((int)AssemblerOptions.back()->getATRegNum() == RegIndex)) {
- if (RegIndex == 1)
- Warning(Loc, "used $at without \".set noat\"");
- else
- Warning(Loc, Twine("used $") + Twine(RegIndex) + " with \".set at=$" +
- Twine(RegIndex) + "\"");
- }
+void MipsAsmParser::warnIfRegIndexIsAT(unsigned RegIndex, SMLoc Loc) {
+ if (RegIndex != 0 && AssemblerOptions.back()->getATRegIndex() == RegIndex)
+ Warning(Loc, "used $at (currently $" + Twine(RegIndex) +
+ ") without \".set noat\"");
}
void
return CC;
}
-bool MipsAssemblerOptions::setATReg(unsigned Reg) {
- if (Reg > 31)
- return false;
-
- ATReg = Reg;
- return true;
-}
-
-int MipsAsmParser::getATReg(SMLoc Loc) {
- int AT = AssemblerOptions.back()->getATRegNum();
- if (AT == 0)
+unsigned MipsAsmParser::getATReg(SMLoc Loc) {
+ unsigned ATIndex = AssemblerOptions.back()->getATRegIndex();
+ if (ATIndex == 0) {
reportParseError(Loc,
"pseudo-instruction requires $at, which is not available");
+ return 0;
+ }
+ unsigned AT = getReg(
+ (isGP64bit()) ? Mips::GPR64RegClassID : Mips::GPR32RegClassID, ATIndex);
return AT;
}
if (Tok.isNot(AsmToken::Identifier))
return true;
- std::string Str = Tok.getIdentifier().str();
+ std::string Str = Tok.getIdentifier();
Parser.Lex(); // Eat the identifier.
// Now make an expression from the rest of the operand.
return MatchOperand_Success;
}
+MipsAsmParser::OperandMatchResultTy
+MipsAsmParser::parseRegisterList(OperandVector &Operands) {
+ MCAsmParser &Parser = getParser();
+ SmallVector<unsigned, 10> Regs;
+ unsigned RegNo;
+ unsigned PrevReg = Mips::NoRegister;
+ bool RegRange = false;
+ SmallVector<std::unique_ptr<MCParsedAsmOperand>, 8> TmpOperands;
+
+ if (Parser.getTok().isNot(AsmToken::Dollar))
+ return MatchOperand_ParseFail;
+
+ SMLoc S = Parser.getTok().getLoc();
+ while (parseAnyRegister(TmpOperands) == MatchOperand_Success) {
+ SMLoc E = getLexer().getLoc();
+ MipsOperand &Reg = static_cast<MipsOperand &>(*TmpOperands.back());
+ RegNo = isGP64bit() ? Reg.getGPR64Reg() : Reg.getGPR32Reg();
+ if (RegRange) {
+ // Remove last register operand because registers from register range
+ // should be inserted first.
+ if (RegNo == Mips::RA) {
+ Regs.push_back(RegNo);
+ } else {
+ unsigned TmpReg = PrevReg + 1;
+ while (TmpReg <= RegNo) {
+ if ((TmpReg < Mips::S0) || (TmpReg > Mips::S7)) {
+ Error(E, "invalid register operand");
+ return MatchOperand_ParseFail;
+ }
+
+ PrevReg = TmpReg;
+ Regs.push_back(TmpReg++);
+ }
+ }
+
+ RegRange = false;
+ } else {
+ if ((PrevReg == Mips::NoRegister) && (RegNo != Mips::S0) &&
+ (RegNo != Mips::RA)) {
+ Error(E, "$16 or $31 expected");
+ return MatchOperand_ParseFail;
+ } else if (((RegNo < Mips::S0) || (RegNo > Mips::S7)) &&
+ (RegNo != Mips::FP) && (RegNo != Mips::RA)) {
+ Error(E, "invalid register operand");
+ return MatchOperand_ParseFail;
+ } else if ((PrevReg != Mips::NoRegister) && (RegNo != PrevReg + 1) &&
+ (RegNo != Mips::FP) && (RegNo != Mips::RA)) {
+ Error(E, "consecutive register numbers expected");
+ return MatchOperand_ParseFail;
+ }
+
+ Regs.push_back(RegNo);
+ }
+
+ if (Parser.getTok().is(AsmToken::Minus))
+ RegRange = true;
+
+ if (!Parser.getTok().isNot(AsmToken::Minus) &&
+ !Parser.getTok().isNot(AsmToken::Comma)) {
+ Error(E, "',' or '-' expected");
+ return MatchOperand_ParseFail;
+ }
+
+ Lex(); // Consume comma or minus
+ if (Parser.getTok().isNot(AsmToken::Dollar))
+ break;
+
+ PrevReg = RegNo;
+ }
+
+ SMLoc E = Parser.getTok().getLoc();
+ Operands.push_back(MipsOperand::CreateRegList(Regs, S, E, *this));
+ parseMemOperand(Operands);
+ return MatchOperand_Success;
+}
+
+MipsAsmParser::OperandMatchResultTy
+MipsAsmParser::parseRegisterPair(OperandVector &Operands) {
+ MCAsmParser &Parser = getParser();
+
+ SMLoc S = Parser.getTok().getLoc();
+ if (parseAnyRegister(Operands) != MatchOperand_Success)
+ return MatchOperand_ParseFail;
+
+ SMLoc E = Parser.getTok().getLoc();
+ MipsOperand &Op = static_cast<MipsOperand &>(*Operands.back());
+ unsigned Reg = Op.getGPR32Reg();
+ Operands.pop_back();
+ Operands.push_back(MipsOperand::CreateRegPair(Reg, S, E, *this));
+ return MatchOperand_Success;
+}
+
+MipsAsmParser::OperandMatchResultTy
+MipsAsmParser::parseMovePRegPair(OperandVector &Operands) {
+ MCAsmParser &Parser = getParser();
+ SmallVector<std::unique_ptr<MCParsedAsmOperand>, 8> TmpOperands;
+ SmallVector<unsigned, 10> Regs;
+
+ if (Parser.getTok().isNot(AsmToken::Dollar))
+ return MatchOperand_ParseFail;
+
+ SMLoc S = Parser.getTok().getLoc();
+
+ if (parseAnyRegister(TmpOperands) != MatchOperand_Success)
+ return MatchOperand_ParseFail;
+
+ MipsOperand *Reg = &static_cast<MipsOperand &>(*TmpOperands.back());
+ unsigned RegNo = isGP64bit() ? Reg->getGPR64Reg() : Reg->getGPR32Reg();
+ Regs.push_back(RegNo);
+
+ SMLoc E = Parser.getTok().getLoc();
+ if (Parser.getTok().isNot(AsmToken::Comma)) {
+ Error(E, "',' expected");
+ return MatchOperand_ParseFail;
+ }
+
+ // Remove comma.
+ Parser.Lex();
+
+ if (parseAnyRegister(TmpOperands) != MatchOperand_Success)
+ return MatchOperand_ParseFail;
+
+ Reg = &static_cast<MipsOperand &>(*TmpOperands.back());
+ RegNo = isGP64bit() ? Reg->getGPR64Reg() : Reg->getGPR32Reg();
+ Regs.push_back(RegNo);
+
+ Operands.push_back(MipsOperand::CreateRegList(Regs, S, E, *this));
+
+ return MatchOperand_Success;
+}
+
MCSymbolRefExpr::VariantKind MipsAsmParser::getVariantKind(StringRef Symbol) {
MCSymbolRefExpr::VariantKind VK =
bool MipsAsmParser::parseSetNoAtDirective() {
MCAsmParser &Parser = getParser();
// Line should look like: ".set noat".
- // set at reg to 0.
- AssemblerOptions.back()->setATReg(0);
- // eat noat
- Parser.Lex();
+
+ // Set the $at register to $0.
+ AssemblerOptions.back()->setATRegIndex(0);
+
+ Parser.Lex(); // Eat "noat".
+
// 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;
}
+
+ getTargetStreamer().emitDirectiveSetNoAt();
Parser.Lex(); // Consume the EndOfStatement.
return false;
}
bool MipsAsmParser::parseSetAtDirective() {
+ // Line can be: ".set at", which sets $at to $1
+ // or ".set at=$reg", which sets $at to $reg.
MCAsmParser &Parser = getParser();
- // Line can be .set at - defaults to $1
- // or .set at=$reg
- int AtRegNo;
- getParser().Lex();
+ Parser.Lex(); // Eat "at".
+
if (getLexer().is(AsmToken::EndOfStatement)) {
- AssemblerOptions.back()->setATReg(1);
+ // No register was specified, so we set $at to $1.
+ AssemblerOptions.back()->setATRegIndex(1);
+
+ getTargetStreamer().emitDirectiveSetAt();
Parser.Lex(); // Consume the EndOfStatement.
return false;
- } else if (getLexer().is(AsmToken::Equal)) {
- getParser().Lex(); // Eat the '='.
- if (getLexer().isNot(AsmToken::Dollar)) {
- reportParseError("unexpected token, expected dollar sign '$'");
+ }
+
+ if (getLexer().isNot(AsmToken::Equal)) {
+ reportParseError("unexpected token, expected equals sign");
+ return false;
+ }
+ Parser.Lex(); // Eat "=".
+
+ if (getLexer().isNot(AsmToken::Dollar)) {
+ if (getLexer().is(AsmToken::EndOfStatement)) {
+ reportParseError("no register specified");
return false;
- }
- Parser.Lex(); // Eat the '$'.
- const AsmToken &Reg = Parser.getTok();
- if (Reg.is(AsmToken::Identifier)) {
- AtRegNo = matchCPURegisterName(Reg.getIdentifier());
- } else if (Reg.is(AsmToken::Integer)) {
- AtRegNo = Reg.getIntVal();
} else {
- reportParseError("unexpected token, expected identifier or integer");
- return false;
- }
-
- if (AtRegNo < 0 || AtRegNo > 31) {
- reportParseError("unexpected token in statement");
+ reportParseError("unexpected token, expected dollar sign '$'");
return false;
}
+ }
+ Parser.Lex(); // Eat "$".
- if (!AssemblerOptions.back()->setATReg(AtRegNo)) {
- reportParseError("invalid register");
- return false;
- }
- getParser().Lex(); // Eat the register.
+ // Find out what "reg" is.
+ unsigned AtRegNo;
+ const AsmToken &Reg = Parser.getTok();
+ if (Reg.is(AsmToken::Identifier)) {
+ AtRegNo = matchCPURegisterName(Reg.getIdentifier());
+ } else if (Reg.is(AsmToken::Integer)) {
+ AtRegNo = Reg.getIntVal();
+ } else {
+ reportParseError("unexpected token, expected identifier or integer");
+ return false;
+ }
- if (getLexer().isNot(AsmToken::EndOfStatement)) {
- reportParseError("unexpected token, expected end of statement");
- return false;
- }
- Parser.Lex(); // Consume the EndOfStatement.
+ // Check if $reg is a valid register. If it is, set $at to $reg.
+ if (!AssemblerOptions.back()->setATRegIndex(AtRegNo)) {
+ reportParseError("invalid register");
return false;
- } else {
- reportParseError("unexpected token in statement");
+ }
+ Parser.Lex(); // Eat "reg".
+
+ // 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;
}
+
+ getTargetStreamer().emitDirectiveSetAtWithArg(AtRegNo);
+
+ Parser.Lex(); // Consume the EndOfStatement.
+ return false;
}
bool MipsAsmParser::parseSetReorderDirective() {
if (Parser.parseExpression(Value))
return reportParseError("expected valid expression after comma");
- // Check if the Name already exists as a symbol.
- MCSymbol *Sym = getContext().LookupSymbol(Name);
- if (Sym)
- return reportParseError("symbol already defined");
- Sym = getContext().GetOrCreateSymbol(Name);
+ MCSymbol *Sym = getContext().GetOrCreateSymbol(Name);
Sym->setVariableValue(Value);
return false;
.Case("mips5", "mips5")
.Case("mips32", "mips32")
.Case("mips32r2", "mips32r2")
+ .Case("mips32r3", "mips32r3")
+ .Case("mips32r5", "mips32r5")
.Case("mips32r6", "mips32r6")
.Case("mips64", "mips64")
.Case("mips64r2", "mips64r2")
+ .Case("mips64r3", "mips64r3")
+ .Case("mips64r5", "mips64r5")
.Case("mips64r6", "mips64r6")
.Case("cnmips", "cnmips")
.Case("r4000", "mips3") // This is an implementation of Mips3.
selectArch("mips32r2");
getTargetStreamer().emitDirectiveSetMips32R2();
break;
+ case Mips::FeatureMips32r3:
+ selectArch("mips32r3");
+ getTargetStreamer().emitDirectiveSetMips32R3();
+ break;
+ case Mips::FeatureMips32r5:
+ selectArch("mips32r5");
+ getTargetStreamer().emitDirectiveSetMips32R5();
+ break;
case Mips::FeatureMips32r6:
selectArch("mips32r6");
getTargetStreamer().emitDirectiveSetMips32R6();
selectArch("mips64r2");
getTargetStreamer().emitDirectiveSetMips64R2();
break;
+ case Mips::FeatureMips64r3:
+ selectArch("mips64r3");
+ getTargetStreamer().emitDirectiveSetMips64R3();
+ break;
+ case Mips::FeatureMips64r5:
+ selectArch("mips64r5");
+ getTargetStreamer().emitDirectiveSetMips64R5();
+ break;
case Mips::FeatureMips64r6:
selectArch("mips64r6");
getTargetStreamer().emitDirectiveSetMips64R6();
if (!eatComma("unexpected token, expected comma"))
return true;
- StringRef Name;
- if (Parser.parseIdentifier(Name))
- reportParseError("expected identifier");
- MCSymbol *Sym = getContext().GetOrCreateSymbol(Name);
+ const MCExpr *Expr;
+ if (Parser.parseExpression(Expr)) {
+ reportParseError("expected expression");
+ return false;
+ }
- getTargetStreamer().emitDirectiveCpsetup(FuncReg, Save, *Sym, SaveIsReg);
+ if (Expr->getKind() != MCExpr::SymbolRef) {
+ reportParseError("expected symbol");
+ return false;
+ }
+ const MCSymbolRefExpr *Ref = static_cast<const MCSymbolRefExpr *>(Expr);
+
+ getTargetStreamer().emitDirectiveCpsetup(FuncReg, Save, Ref->getSymbol(),
+ SaveIsReg);
return false;
}
return parseSetFeature(Mips::FeatureMips32);
} else if (Tok.getString() == "mips32r2") {
return parseSetFeature(Mips::FeatureMips32r2);
+ } else if (Tok.getString() == "mips32r3") {
+ return parseSetFeature(Mips::FeatureMips32r3);
+ } else if (Tok.getString() == "mips32r5") {
+ return parseSetFeature(Mips::FeatureMips32r5);
} else if (Tok.getString() == "mips32r6") {
return parseSetFeature(Mips::FeatureMips32r6);
} else if (Tok.getString() == "mips64") {
return parseSetFeature(Mips::FeatureMips64);
} else if (Tok.getString() == "mips64r2") {
return parseSetFeature(Mips::FeatureMips64r2);
+ } else if (Tok.getString() == "mips64r3") {
+ return parseSetFeature(Mips::FeatureMips64r3);
+ } else if (Tok.getString() == "mips64r5") {
+ return parseSetFeature(Mips::FeatureMips64r5);
} else if (Tok.getString() == "mips64r6") {
return parseSetFeature(Mips::FeatureMips64r6);
} else if (Tok.getString() == "dsp") {
return false;
}
+/// parseInsnDirective
+/// ::= .insn
+bool MipsAsmParser::parseInsnDirective() {
+ // 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;
+ }
+
+ // The actual label marking happens in
+ // MipsELFStreamer::createPendingLabelRelocs().
+ getTargetStreamer().emitDirectiveInsn();
+
+ getParser().Lex(); // Eat EndOfStatement token.
+ return false;
+}
+
/// parseDirectiveModule
/// ::= .module oddspreg
/// ::= .module nooddspreg
return false;
}
- if (Lexer.is(AsmToken::Identifier)) {
- StringRef Option = Parser.getTok().getString();
- Parser.Lex();
-
- if (Option == "oddspreg") {
- getTargetStreamer().emitDirectiveModuleOddSPReg(true, isABI_O32());
- clearFeatureBits(Mips::FeatureNoOddSPReg, "nooddspreg");
+ StringRef Option;
+ if (Parser.parseIdentifier(Option)) {
+ reportParseError("expected .module option identifier");
+ return false;
+ }
- if (getLexer().isNot(AsmToken::EndOfStatement)) {
- reportParseError("unexpected token, expected end of statement");
- return false;
- }
+ if (Option == "oddspreg") {
+ getTargetStreamer().emitDirectiveModuleOddSPReg(true, isABI_O32());
+ clearFeatureBits(Mips::FeatureNoOddSPReg, "nooddspreg");
+ // 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;
- } else if (Option == "nooddspreg") {
- if (!isABI_O32()) {
- Error(L, "'.module nooddspreg' requires the O32 ABI");
- return false;
- }
+ }
- getTargetStreamer().emitDirectiveModuleOddSPReg(false, isABI_O32());
- setFeatureBits(Mips::FeatureNoOddSPReg, "nooddspreg");
+ return false; // parseDirectiveModule has finished successfully.
+ } else if (Option == "nooddspreg") {
+ if (!isABI_O32()) {
+ Error(L, "'.module nooddspreg' requires the O32 ABI");
+ return false;
+ }
- if (getLexer().isNot(AsmToken::EndOfStatement)) {
- reportParseError("unexpected token, expected end of statement");
- return false;
- }
+ getTargetStreamer().emitDirectiveModuleOddSPReg(false, isABI_O32());
+ setFeatureBits(Mips::FeatureNoOddSPReg, "nooddspreg");
+ // 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;
- } else if (Option == "fp") {
- return parseDirectiveModuleFP();
}
+ return false; // parseDirectiveModule has finished successfully.
+ } else if (Option == "fp") {
+ return parseDirectiveModuleFP();
+ } else {
return Error(L, "'" + Twine(Option) + "' is not a valid .module option.");
}
-
- return false;
}
/// parseDirectiveModuleFP
if (IDVal == ".module")
return parseDirectiveModule();
+ if (IDVal == ".llvm_internal_mips_reallow_module_directive")
+ return parseInternalDirectiveReallowModule();
+
+ if (IDVal == ".insn")
+ return parseInsnDirective();
+
return true;
}
+bool MipsAsmParser::parseInternalDirectiveReallowModule() {
+ // 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;
+ }
+
+ getTargetStreamer().reallowModuleDirective();
+
+ getParser().Lex(); // Eat EndOfStatement token.
+ return false;
+}
+
extern "C" void LLVMInitializeMipsAsmParser() {
RegisterMCAsmParser<MipsAsmParser> X(TheMipsTarget);
RegisterMCAsmParser<MipsAsmParser> Y(TheMipselTarget);
projects / oota-llvm.git / blobdiff