[llvm] r334980 - [AArch64][SVE] Asm: Support for saturating INC/DEC (32bit scalar) instructions.

Vlad Tsyrklevich via llvm-commits llvm-commits at lists.llvm.org
Mon Jun 25 17:52:44 PDT 2018


I've filed https://bugs.llvm.org/show_bug.cgi?id=37929 for the
JumpThreading compile slowness and merged https://reviews.llvm.org/D48566
to inhibit UBSan instrumentation of these functions for now. The compile
seems to be well under the timeout duration now.

On Mon, Jun 25, 2018 at 10:43 AM, Vlad Tsyrklevich <vlad at tsyrklevich.net>
wrote:

> I took a look at this again since we're still seeing occasional build
> timeouts on the UBSan bot. I recorded the # of basic blocks on entry to the
> jump threading pass for printAliasInstr() with different build settings:
> -O1: ~5.5k BBs
> -O2: ~25k BBs
> -O3: ~25k BBs
> -O3 + sanitizers: ~54k BBs
>
> The blow-up between -O1 and -O2 is due to the inliner inlining
> MCInst::getOperand() and MCRegisterInfo::getRegClass() many times. By
> adding a CFGSimplificationPass before the JumpThreadingPass runs, the
> number of BBs is brought down to:
> -O2 : ~15k BBs
> -O3 -fsanitize: ~42k BBs
>
> This corresponds with ~30s/2m local build runtimes, approximately a ~4x
> improvement. Not sure if this change is worth pursuing given that it may
> only benefit compile times for huge functions.
>
> On Tue, Jun 19, 2018 at 5:09 PM Vlad Tsyrklevich <vlad at tsyrklevich.net>
> wrote:
>
>> Hi Sander, this change has started causing intermittent build timeouts on
>> the ubsan builder: http://lab.llvm.org:8011/builders/sanitizer-x86_
>> 64-linux-bootstrap-ubsan
>>
>> I've tracked it down to this change, before this
>> change AArch64InstPrinter.cpp takes ~95s to build with -O3 locally, with
>> this change it takes 120s. With sanitizers enabled, this increase is
>> multiplied by 5-15x, and the builder in the cloud is even slower. Taking a
>> brief look at what's happening in the compiler, it looks like most of the
>> time is spent recomputing dominator trees in the JumpThreading pass
>> for llvm::AArch64AppleInstPrinter::printAliasInstr(). Looking at the IR
>> for printAliasInstr(), it contains a switch statement with many targets and
>> every statement in the switch is inlining multiple functions
>> (like MCInst::getOperand and MCRegisterInfo::getRegClass) multiple
>> times significantly multiplying the number of basic blocks in the function.
>>
>> I've reverted this change and r334983 for now in r335085.
>>
>> On Mon, Jun 18, 2018 at 1:54 PM Sander de Smalen via llvm-commits <
>> llvm-commits at lists.llvm.org> wrote:
>>
>>> Author: s.desmalen
>>> Date: Mon Jun 18 13:50:33 2018
>>> New Revision: 334980
>>>
>>> URL: http://llvm.org/viewvc/llvm-project?rev=334980&view=rev
>>> Log:
>>> [AArch64][SVE] Asm: Support for saturating INC/DEC (32bit scalar)
>>> instructions.
>>>
>>> The variants added by this patch are:
>>> - SQINC     signed increment, e.g. sqinc x0, w0, all, mul #4
>>> - SQDEC     signed decrement, e.g. sqdec x0, w0, all, mul #4
>>> - UQINC   unsigned increment, e.g. uqinc w0, all, mul #4
>>> - UQDEC   unsigned decrement, e.g. uqdec w0, all, mul #4
>>>
>>> This patch includes asmparser changes to parse a GPR64 as a GPR32 in
>>> order to satisfy the constraint check:
>>>   x0 == GPR64(w0)
>>> in:
>>>   sqinc x0, w0, all, mul #4
>>>          ^___^ (must match)
>>>
>>> Reviewers: rengolin, fhahn, SjoerdMeijer, samparker, javed.absar
>>>
>>> Reviewed By: fhahn
>>>
>>> Differential Revision: https://reviews.llvm.org/D47716
>>>
>>>
>>> Modified:
>>>     llvm/trunk/lib/Target/AArch64/AArch64InstrFormats.td
>>>     llvm/trunk/lib/Target/AArch64/AArch64SVEInstrInfo.td
>>>     llvm/trunk/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp
>>>     llvm/trunk/lib/Target/AArch64/InstPrinter/AArch64InstPrinter.cpp
>>>     llvm/trunk/lib/Target/AArch64/InstPrinter/AArch64InstPrinter.h
>>>     llvm/trunk/lib/Target/AArch64/SVEInstrFormats.td
>>>     llvm/trunk/test/MC/AArch64/SVE/sqdecb-diagnostics.s
>>>     llvm/trunk/test/MC/AArch64/SVE/sqdecb.s
>>>     llvm/trunk/test/MC/AArch64/SVE/sqdecd-diagnostics.s
>>>     llvm/trunk/test/MC/AArch64/SVE/sqdecd.s
>>>     llvm/trunk/test/MC/AArch64/SVE/sqdech-diagnostics.s
>>>     llvm/trunk/test/MC/AArch64/SVE/sqdech.s
>>>     llvm/trunk/test/MC/AArch64/SVE/sqdecw-diagnostics.s
>>>     llvm/trunk/test/MC/AArch64/SVE/sqdecw.s
>>>     llvm/trunk/test/MC/AArch64/SVE/sqincb-diagnostics.s
>>>     llvm/trunk/test/MC/AArch64/SVE/sqincb.s
>>>     llvm/trunk/test/MC/AArch64/SVE/sqincd-diagnostics.s
>>>     llvm/trunk/test/MC/AArch64/SVE/sqincd.s
>>>     llvm/trunk/test/MC/AArch64/SVE/sqinch-diagnostics.s
>>>     llvm/trunk/test/MC/AArch64/SVE/sqinch.s
>>>     llvm/trunk/test/MC/AArch64/SVE/sqincw-diagnostics.s
>>>     llvm/trunk/test/MC/AArch64/SVE/sqincw.s
>>>     llvm/trunk/test/MC/AArch64/SVE/uqdecb-diagnostics.s
>>>     llvm/trunk/test/MC/AArch64/SVE/uqdecb.s
>>>     llvm/trunk/test/MC/AArch64/SVE/uqdecd-diagnostics.s
>>>     llvm/trunk/test/MC/AArch64/SVE/uqdecd.s
>>>     llvm/trunk/test/MC/AArch64/SVE/uqdech-diagnostics.s
>>>     llvm/trunk/test/MC/AArch64/SVE/uqdech.s
>>>     llvm/trunk/test/MC/AArch64/SVE/uqdecw-diagnostics.s
>>>     llvm/trunk/test/MC/AArch64/SVE/uqdecw.s
>>>     llvm/trunk/test/MC/AArch64/SVE/uqincb-diagnostics.s
>>>     llvm/trunk/test/MC/AArch64/SVE/uqincb.s
>>>     llvm/trunk/test/MC/AArch64/SVE/uqincd-diagnostics.s
>>>     llvm/trunk/test/MC/AArch64/SVE/uqincd.s
>>>     llvm/trunk/test/MC/AArch64/SVE/uqinch-diagnostics.s
>>>     llvm/trunk/test/MC/AArch64/SVE/uqinch.s
>>>     llvm/trunk/test/MC/AArch64/SVE/uqincw-diagnostics.s
>>>     llvm/trunk/test/MC/AArch64/SVE/uqincw.s
>>>
>>> Modified: llvm/trunk/lib/Target/AArch64/AArch64InstrFormats.td
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/
>>> AArch64/AArch64InstrFormats.td?rev=334980&r1=334979&r2=334980&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/lib/Target/AArch64/AArch64InstrFormats.td (original)
>>> +++ llvm/trunk/lib/Target/AArch64/AArch64InstrFormats.td Mon Jun 18
>>> 13:50:33 2018
>>> @@ -179,11 +179,23 @@ def CondCode : AsmOperandClass {
>>>  // A 32-bit register pasrsed as 64-bit
>>>  def GPR32as64Operand : AsmOperandClass {
>>>    let Name = "GPR32as64";
>>> +  let ParserMethod =
>>> +      "tryParseGPROperand<false, RegConstraintEqualityTy::
>>> EqualsSubReg>";
>>>  }
>>>  def GPR32as64 : RegisterOperand<GPR32> {
>>>    let ParserMatchClass = GPR32as64Operand;
>>>  }
>>>
>>> +// A 64-bit register pasrsed as 32-bit
>>> +def GPR64as32Operand : AsmOperandClass {
>>> +  let Name = "GPR64as32";
>>> +  let ParserMethod =
>>> +      "tryParseGPROperand<false, RegConstraintEqualityTy::
>>> EqualsSuperReg>";
>>> +}
>>> +def GPR64as32 : RegisterOperand<GPR64, "printGPR64as32"> {
>>> +  let ParserMatchClass = GPR64as32Operand;
>>> +}
>>> +
>>>  // 8-bit immediate for AdvSIMD where 64-bit values of the form:
>>>  // aaaaaaaa bbbbbbbb cccccccc dddddddd eeeeeeee ffffffff gggggggg
>>> hhhhhhhh
>>>  // are encoded as the eight bit value 'abcdefgh'.
>>>
>>> Modified: llvm/trunk/lib/Target/AArch64/AArch64SVEInstrInfo.td
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/
>>> AArch64/AArch64SVEInstrInfo.td?rev=334980&r1=334979&r2=334980&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/lib/Target/AArch64/AArch64SVEInstrInfo.td (original)
>>> +++ llvm/trunk/lib/Target/AArch64/AArch64SVEInstrInfo.td Mon Jun 18
>>> 13:50:33 2018
>>> @@ -527,21 +527,37 @@ let Predicates = [HasSVE] in {
>>>    defm CMPLO_WIDE_PPzZZ : sve_int_cmp_1_wide<0b110, "cmplo">;
>>>    defm CMPLS_WIDE_PPzZZ : sve_int_cmp_1_wide<0b111, "cmpls">;
>>>
>>> +  defm SQINCB_XPiWdI : sve_int_pred_pattern_b_s32<0b00000, "sqincb">;
>>> +  defm UQINCB_WPiI   : sve_int_pred_pattern_b_u32<0b00001, "uqincb">;
>>> +  defm SQDECB_XPiWdI : sve_int_pred_pattern_b_s32<0b00010, "sqdecb">;
>>> +  defm UQDECB_WPiI   : sve_int_pred_pattern_b_u32<0b00011, "uqdecb">;
>>>    defm SQINCB_XPiI   : sve_int_pred_pattern_b_x64<0b00100, "sqincb">;
>>>    defm UQINCB_XPiI   : sve_int_pred_pattern_b_x64<0b00101, "uqincb">;
>>>    defm SQDECB_XPiI   : sve_int_pred_pattern_b_x64<0b00110, "sqdecb">;
>>>    defm UQDECB_XPiI   : sve_int_pred_pattern_b_x64<0b00111, "uqdecb">;
>>>
>>> +  defm SQINCH_XPiWdI : sve_int_pred_pattern_b_s32<0b01000, "sqinch">;
>>> +  defm UQINCH_WPiI   : sve_int_pred_pattern_b_u32<0b01001, "uqinch">;
>>> +  defm SQDECH_XPiWdI : sve_int_pred_pattern_b_s32<0b01010, "sqdech">;
>>> +  defm UQDECH_WPiI   : sve_int_pred_pattern_b_u32<0b01011, "uqdech">;
>>>    defm SQINCH_XPiI   : sve_int_pred_pattern_b_x64<0b01100, "sqinch">;
>>>    defm UQINCH_XPiI   : sve_int_pred_pattern_b_x64<0b01101, "uqinch">;
>>>    defm SQDECH_XPiI   : sve_int_pred_pattern_b_x64<0b01110, "sqdech">;
>>>    defm UQDECH_XPiI   : sve_int_pred_pattern_b_x64<0b01111, "uqdech">;
>>>
>>> +  defm SQINCW_XPiWdI : sve_int_pred_pattern_b_s32<0b10000, "sqincw">;
>>> +  defm UQINCW_WPiI   : sve_int_pred_pattern_b_u32<0b10001, "uqincw">;
>>> +  defm SQDECW_XPiWdI : sve_int_pred_pattern_b_s32<0b10010, "sqdecw">;
>>> +  defm UQDECW_WPiI   : sve_int_pred_pattern_b_u32<0b10011, "uqdecw">;
>>>    defm SQINCW_XPiI   : sve_int_pred_pattern_b_x64<0b10100, "sqincw">;
>>>    defm UQINCW_XPiI   : sve_int_pred_pattern_b_x64<0b10101, "uqincw">;
>>>    defm SQDECW_XPiI   : sve_int_pred_pattern_b_x64<0b10110, "sqdecw">;
>>>    defm UQDECW_XPiI   : sve_int_pred_pattern_b_x64<0b10111, "uqdecw">;
>>>
>>> +  defm SQINCD_XPiWdI : sve_int_pred_pattern_b_s32<0b11000, "sqincd">;
>>> +  defm UQINCD_WPiI   : sve_int_pred_pattern_b_u32<0b11001, "uqincd">;
>>> +  defm SQDECD_XPiWdI : sve_int_pred_pattern_b_s32<0b11010, "sqdecd">;
>>> +  defm UQDECD_WPiI   : sve_int_pred_pattern_b_u32<0b11011, "uqdecd">;
>>>    defm SQINCD_XPiI   : sve_int_pred_pattern_b_x64<0b11100, "sqincd">;
>>>    defm UQINCD_XPiI   : sve_int_pred_pattern_b_x64<0b11101, "uqincd">;
>>>    defm SQDECD_XPiI   : sve_int_pred_pattern_b_x64<0b11110, "sqdecd">;
>>>
>>> Modified: llvm/trunk/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/
>>> AArch64/AsmParser/AArch64AsmParser.cpp?rev=334980&r1=334979&r2=334980&
>>> view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp
>>> (original)
>>> +++ llvm/trunk/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp Mon
>>> Jun 18 13:50:33 2018
>>> @@ -66,6 +66,12 @@ enum class RegKind {
>>>    SVEPredicateVector
>>>  };
>>>
>>> +enum RegConstraintEqualityTy {
>>> +  EqualsReg,
>>> +  EqualsSuperReg,
>>> +  EqualsSubReg
>>> +};
>>> +
>>>  class AArch64AsmParser : public MCTargetAsmParser {
>>>  private:
>>>    StringRef Mnemonic; ///< Instruction mnemonic.
>>> @@ -92,7 +98,8 @@ private:
>>>    bool parseOperand(OperandVector &Operands, bool isCondCode,
>>>                      bool invertCondCode);
>>>
>>> -  bool showMatchError(SMLoc Loc, unsigned ErrCode, OperandVector
>>> &Operands);
>>> +  bool showMatchError(SMLoc Loc, unsigned ErrCode, uint64_t ErrorInfo,
>>> +                      OperandVector &Operands);
>>>
>>>    bool parseDirectiveArch(SMLoc L);
>>>    bool parseDirectiveCPU(SMLoc L);
>>> @@ -139,7 +146,8 @@ private:
>>>    bool tryParseNeonVectorRegister(OperandVector &Operands);
>>>    OperandMatchResultTy tryParseVectorIndex(OperandVector &Operands);
>>>    OperandMatchResultTy tryParseGPRSeqPair(OperandVector &Operands);
>>> -  template <bool ParseShiftExtend>
>>> +  template <bool ParseShiftExtend,
>>> +            RegConstraintEqualityTy EqTy = RegConstraintEqualityTy::
>>> EqualsReg>
>>>    OperandMatchResultTy tryParseGPROperand(OperandVector &Operands);
>>>    template <bool ParseShiftExtend, bool ParseSuffix>
>>>    OperandMatchResultTy tryParseSVEDataVector(OperandVector &Operands);
>>> @@ -177,6 +185,8 @@ public:
>>>      setAvailableFeatures(ComputeAvailableFeatures(
>>> getSTI().getFeatureBits()));
>>>    }
>>>
>>> +  bool regsEqual(const MCParsedAsmOperand &Op1,
>>> +                 const MCParsedAsmOperand &Op2) const override;
>>>    bool ParseInstruction(ParseInstructionInfo &Info, StringRef Name,
>>>                          SMLoc NameLoc, OperandVector &Operands)
>>> override;
>>>    bool ParseRegister(unsigned &RegNo, SMLoc &StartLoc, SMLoc &EndLoc)
>>> override;
>>> @@ -231,6 +241,10 @@ private:
>>>      RegKind Kind;
>>>      int ElementWidth;
>>>
>>> +    // The register may be allowed as a different register class,
>>> +    // e.g. for GPR64as32 or GPR32as64.
>>> +    RegConstraintEqualityTy EqualityTy;
>>> +
>>>      // In some cases the shift/extend needs to be explicitly parsed
>>> together
>>>      // with the register, rather than as a separate operand. This is
>>> needed
>>>      // for addressing modes where the instruction as a whole dictates
>>> the
>>> @@ -446,6 +460,11 @@ public:
>>>      return Reg.RegNum;
>>>    }
>>>
>>> +  RegConstraintEqualityTy getRegEqualityTy() const {
>>> +    assert(Kind == k_Register && "Invalid access!");
>>> +    return Reg.EqualityTy;
>>> +  }
>>> +
>>>    unsigned getVectorListStart() const {
>>>      assert(Kind == k_VectorList && "Invalid access!");
>>>      return VectorList.RegNum;
>>> @@ -1002,6 +1021,11 @@ public:
>>>        AArch64MCRegisterClasses[AArch64::GPR64RegClassID].
>>> contains(Reg.RegNum);
>>>    }
>>>
>>> +  bool isGPR64as32() const {
>>> +    return Kind == k_Register && Reg.Kind == RegKind::Scalar &&
>>> +      AArch64MCRegisterClasses[AArch64::GPR32RegClassID].
>>> contains(Reg.RegNum);
>>> +  }
>>> +
>>>    bool isWSeqPair() const {
>>>      return Kind == k_Register && Reg.Kind == RegKind::Scalar &&
>>>             AArch64MCRegisterClasses[AArch64::WSeqPairsClassRegClassID].
>>> contains(
>>> @@ -1318,6 +1342,18 @@ public:
>>>      Inst.addOperand(MCOperand::createReg(Reg));
>>>    }
>>>
>>> +  void addGPR64as32Operands(MCInst &Inst, unsigned N) const {
>>> +    assert(N == 1 && "Invalid number of operands!");
>>> +    assert(
>>> +        AArch64MCRegisterClasses[AArch64::GPR32RegClassID].
>>> contains(getReg()));
>>> +
>>> +    const MCRegisterInfo *RI = Ctx.getRegisterInfo();
>>> +    uint32_t Reg = RI->getRegClass(AArch64::
>>> GPR64RegClassID).getRegister(
>>> +        RI->getEncodingValue(getReg()));
>>> +
>>> +    Inst.addOperand(MCOperand::createReg(Reg));
>>> +  }
>>> +
>>>    template <int Width>
>>>    void addFPRasZPRRegOperands(MCInst &Inst, unsigned N) const {
>>>      unsigned Base;
>>> @@ -1668,6 +1704,7 @@ public:
>>>
>>>    static std::unique_ptr<AArch64Operand>
>>>    CreateReg(unsigned RegNum, RegKind Kind, SMLoc S, SMLoc E, MCContext
>>> &Ctx,
>>> +            RegConstraintEqualityTy EqTy = RegConstraintEqualityTy::
>>> EqualsReg,
>>>              AArch64_AM::ShiftExtendType ExtTy = AArch64_AM::LSL,
>>>              unsigned ShiftAmount = 0,
>>>              unsigned HasExplicitAmount = false) {
>>> @@ -1675,6 +1712,7 @@ public:
>>>      Op->Reg.RegNum = RegNum;
>>>      Op->Reg.Kind = Kind;
>>>      Op->Reg.ElementWidth = 0;
>>> +    Op->Reg.EqualityTy = EqTy;
>>>      Op->Reg.ShiftExtend.Type = ExtTy;
>>>      Op->Reg.ShiftExtend.Amount = ShiftAmount;
>>>      Op->Reg.ShiftExtend.HasExplicitAmount = HasExplicitAmount;
>>> @@ -1692,7 +1730,7 @@ public:
>>>      assert((Kind == RegKind::NeonVector || Kind ==
>>> RegKind::SVEDataVector ||
>>>              Kind == RegKind::SVEPredicateVector) &&
>>>             "Invalid vector kind");
>>> -    auto Op = CreateReg(RegNum, Kind, S, E, Ctx, ExtTy, ShiftAmount,
>>> +    auto Op = CreateReg(RegNum, Kind, S, E, Ctx, EqualsReg, ExtTy,
>>> ShiftAmount,
>>>                          HasExplicitAmount);
>>>      Op->Reg.ElementWidth = ElementWidth;
>>>      return Op;
>>> @@ -3164,7 +3202,7 @@ AArch64AsmParser::tryParseGPR64sp0Operan
>>>    return MatchOperand_Success;
>>>  }
>>>
>>> -template <bool ParseShiftExtend>
>>> +template <bool ParseShiftExtend, RegConstraintEqualityTy EqTy>
>>>  OperandMatchResultTy
>>>  AArch64AsmParser::tryParseGPROperand(OperandVector &Operands) {
>>>    SMLoc StartLoc = getLoc();
>>> @@ -3177,7 +3215,7 @@ AArch64AsmParser::tryParseGPROperand(Ope
>>>    // No shift/extend is the default.
>>>    if (!ParseShiftExtend || getParser().getTok().isNot(AsmToken::Comma))
>>> {
>>>      Operands.push_back(AArch64Operand::CreateReg(
>>> -        RegNum, RegKind::Scalar, StartLoc, getLoc(), getContext()));
>>> +        RegNum, RegKind::Scalar, StartLoc, getLoc(), getContext(),
>>> EqTy));
>>>      return MatchOperand_Success;
>>>    }
>>>
>>> @@ -3191,10 +3229,10 @@ AArch64AsmParser::tryParseGPROperand(Ope
>>>      return Res;
>>>
>>>    auto Ext = static_cast<AArch64Operand*>(ExtOpnd.back().get());
>>> -  Operands.push_back(AArch64Operand::CreateReg(RegNum, RegKind::Scalar,
>>> -                     StartLoc, Ext->getEndLoc(), getContext(),
>>> -                     Ext->getShiftExtendType(),
>>> Ext->getShiftExtendAmount(),
>>> -                     Ext->hasShiftExtendAmount()));
>>> +  Operands.push_back(AArch64Operand::CreateReg(
>>> +      RegNum, RegKind::Scalar, StartLoc, Ext->getEndLoc(),
>>> getContext(), EqTy,
>>> +      Ext->getShiftExtendType(), Ext->getShiftExtendAmount(),
>>> +      Ext->hasShiftExtendAmount()));
>>>
>>>    return MatchOperand_Success;
>>>  }
>>> @@ -3412,6 +3450,30 @@ bool AArch64AsmParser::parseOperand(Oper
>>>    }
>>>  }
>>>
>>> +bool AArch64AsmParser::regsEqual(const MCParsedAsmOperand &Op1,
>>> +                                 const MCParsedAsmOperand &Op2) const {
>>> +  auto &AOp1 = static_cast<const AArch64Operand&>(Op1);
>>> +  auto &AOp2 = static_cast<const AArch64Operand&>(Op2);
>>> +  if (AOp1.getRegEqualityTy() == RegConstraintEqualityTy::EqualsReg &&
>>> +      AOp2.getRegEqualityTy() == RegConstraintEqualityTy::EqualsReg)
>>> +    return MCTargetAsmParser::regsEqual(Op1, Op2);
>>> +
>>> +  assert(AOp1.isScalarReg() && AOp2.isScalarReg() &&
>>> +         "Testing equality of non-scalar registers not supported");
>>> +
>>> +  // Check if a registers match their sub/super register classes.
>>> +  if (AOp1.getRegEqualityTy() == EqualsSuperReg)
>>> +    return getXRegFromWReg(Op1.getReg()) == Op2.getReg();
>>> +  if (AOp1.getRegEqualityTy() == EqualsSubReg)
>>> +    return getWRegFromXReg(Op1.getReg()) == Op2.getReg();
>>> +  if (AOp2.getRegEqualityTy() == EqualsSuperReg)
>>> +    return getXRegFromWReg(Op2.getReg()) == Op1.getReg();
>>> +  if (AOp2.getRegEqualityTy() == EqualsSubReg)
>>> +    return getWRegFromXReg(Op2.getReg()) == Op1.getReg();
>>> +
>>> +  return false;
>>> +}
>>> +
>>>  /// ParseInstruction - Parse an AArch64 instruction mnemonic followed
>>> by its
>>>  /// operands.
>>>  bool AArch64AsmParser::ParseInstruction(ParseInstructionInfo &Info,
>>> @@ -3765,10 +3827,22 @@ static std::string AArch64MnemonicSpellC
>>>                                               unsigned VariantID = 0);
>>>
>>>  bool AArch64AsmParser::showMatchError(SMLoc Loc, unsigned ErrCode,
>>> +                                      uint64_t ErrorInfo,
>>>                                        OperandVector &Operands) {
>>>    switch (ErrCode) {
>>> -  case Match_InvalidTiedOperand:
>>> -    return Error(Loc, "operand must match destination register");
>>> +  case Match_InvalidTiedOperand: {
>>> +    RegConstraintEqualityTy EqTy =
>>> +        static_cast<const AArch64Operand &>(*Operands[ErrorInfo])
>>> +            .getRegEqualityTy();
>>> +    switch (EqTy) {
>>> +    case RegConstraintEqualityTy::EqualsSubReg:
>>> +      return Error(Loc, "operand must be 64-bit form of destination
>>> register");
>>> +    case RegConstraintEqualityTy::EqualsSuperReg:
>>> +      return Error(Loc, "operand must be 32-bit form of destination
>>> register");
>>> +    case RegConstraintEqualityTy::EqualsReg:
>>> +      return Error(Loc, "operand must match destination register");
>>> +    }
>>> +  }
>>>    case Match_MissingFeature:
>>>      return Error(Loc,
>>>                   "instruction requires a CPU feature not currently
>>> enabled");
>>> @@ -4389,7 +4463,7 @@ bool AArch64AsmParser::MatchAndEmitInstr
>>>      return Error(IDLoc, Msg);
>>>    }
>>>    case Match_MnemonicFail:
>>> -    return showMatchError(IDLoc, MatchResult, Operands);
>>> +    return showMatchError(IDLoc, MatchResult, ErrorInfo, Operands);
>>>    case Match_InvalidOperand: {
>>>      SMLoc ErrorLoc = IDLoc;
>>>
>>> @@ -4408,7 +4482,7 @@ bool AArch64AsmParser::MatchAndEmitInstr
>>>          ((AArch64Operand &)*Operands[ErrorInfo]).isTokenSuffix())
>>>        MatchResult = Match_InvalidSuffix;
>>>
>>> -    return showMatchError(ErrorLoc, MatchResult, Operands);
>>> +    return showMatchError(ErrorLoc, MatchResult, ErrorInfo, Operands);
>>>    }
>>>    case Match_InvalidTiedOperand:
>>>    case Match_InvalidMemoryIndexed1:
>>> @@ -4546,7 +4620,7 @@ bool AArch64AsmParser::MatchAndEmitInstr
>>>      SMLoc ErrorLoc = ((AArch64Operand &)*Operands[ErrorInfo]).
>>> getStartLoc();
>>>      if (ErrorLoc == SMLoc())
>>>        ErrorLoc = IDLoc;
>>> -    return showMatchError(ErrorLoc, MatchResult, Operands);
>>> +    return showMatchError(ErrorLoc, MatchResult, ErrorInfo, Operands);
>>>    }
>>>    }
>>>
>>>
>>> Modified: llvm/trunk/lib/Target/AArch64/InstPrinter/
>>> AArch64InstPrinter.cpp
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/
>>> AArch64/InstPrinter/AArch64InstPrinter.cpp?rev=
>>> 334980&r1=334979&r2=334980&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/lib/Target/AArch64/InstPrinter/AArch64InstPrinter.cpp
>>> (original)
>>> +++ llvm/trunk/lib/Target/AArch64/InstPrinter/AArch64InstPrinter.cpp
>>> Mon Jun 18 13:50:33 2018
>>> @@ -1527,3 +1527,10 @@ void AArch64InstPrinter::printExactFPImm
>>>    unsigned Val = MI->getOperand(OpNum).getImm();
>>>    O << "#" << (Val ? Imm1Desc->Repr : Imm0Desc->Repr);
>>>  }
>>> +
>>> +void AArch64InstPrinter::printGPR64as32(const MCInst *MI, unsigned
>>> OpNum,
>>> +                                        const MCSubtargetInfo &STI,
>>> +                                        raw_ostream &O) {
>>> +  unsigned Reg = MI->getOperand(OpNum).getReg();
>>> +  O << getRegisterName(getWRegFromXReg(Reg));
>>> +}
>>>
>>> Modified: llvm/trunk/lib/Target/AArch64/InstPrinter/AArch64InstPrinter.h
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/
>>> AArch64/InstPrinter/AArch64InstPrinter.h?rev=334980&r1=334979&r2=334980&
>>> view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/lib/Target/AArch64/InstPrinter/AArch64InstPrinter.h
>>> (original)
>>> +++ llvm/trunk/lib/Target/AArch64/InstPrinter/AArch64InstPrinter.h Mon
>>> Jun 18 13:50:33 2018
>>> @@ -180,6 +180,8 @@ protected:
>>>    template <char = 0>
>>>    void printSVERegOp(const MCInst *MI, unsigned OpNum,
>>>                      const MCSubtargetInfo &STI, raw_ostream &O);
>>> +  void printGPR64as32(const MCInst *MI, unsigned OpNum,
>>> +                      const MCSubtargetInfo &STI, raw_ostream &O);
>>>    template <int Width>
>>>    void printZPRasFPR(const MCInst *MI, unsigned OpNum,
>>>                       const MCSubtargetInfo &STI, raw_ostream &O);
>>>
>>> Modified: llvm/trunk/lib/Target/AArch64/SVEInstrFormats.td
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/
>>> AArch64/SVEInstrFormats.td?rev=334980&r1=334979&r2=334980&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/lib/Target/AArch64/SVEInstrFormats.td (original)
>>> +++ llvm/trunk/lib/Target/AArch64/SVEInstrFormats.td Mon Jun 18
>>> 13:50:33 2018
>>> @@ -333,9 +333,32 @@ class sve_int_pred_pattern_b<bits<5> opc
>>>    let Inst{9-5}   = pattern;
>>>    let Inst{4-0}   = Rdn;
>>>
>>> +  // Signed 32bit forms require their GPR operand printed.
>>> +  let AsmString = !if(!eq(opc{2,0}, 0b00),
>>> +                      !strconcat(asm, "\t$Rdn, $_Rdn, $pattern, mul
>>> $imm4"),
>>> +                      !strconcat(asm, "\t$Rdn, $pattern, mul $imm4"));
>>> +
>>>    let Constraints = "$Rdn = $_Rdn";
>>>  }
>>>
>>> +multiclass sve_int_pred_pattern_b_s32<bits<5> opc, string asm> {
>>> +  def NAME : sve_int_pred_pattern_b<opc, asm, GPR64z, GPR64as32>;
>>> +
>>> +  def : InstAlias<asm # "\t$Rd, $Rn, $pattern",
>>> +                  (!cast<Instruction>(NAME) GPR64z:$Rd, GPR64as32:$Rn,
>>> sve_pred_enum:$pattern, 1), 1>;
>>> +  def : InstAlias<asm # "\t$Rd, $Rn",
>>> +                  (!cast<Instruction>(NAME) GPR64z:$Rd, GPR64as32:$Rn,
>>> 0b11111, 1), 2>;
>>> +}
>>> +
>>> +multiclass sve_int_pred_pattern_b_u32<bits<5> opc, string asm> {
>>> +  def NAME : sve_int_pred_pattern_b<opc, asm, GPR32z, GPR32z>;
>>> +
>>> +  def : InstAlias<asm # "\t$Rdn, $pattern",
>>> +                  (!cast<Instruction>(NAME) GPR32z:$Rdn,
>>> sve_pred_enum:$pattern, 1), 1>;
>>> +  def : InstAlias<asm # "\t$Rdn",
>>> +                  (!cast<Instruction>(NAME) GPR32z:$Rdn, 0b11111, 1),
>>> 2>;
>>> +}
>>> +
>>>  multiclass sve_int_pred_pattern_b_x64<bits<5> opc, string asm> {
>>>    def NAME : sve_int_pred_pattern_b<opc, asm, GPR64z, GPR64z>;
>>>
>>>
>>> Modified: llvm/trunk/test/MC/AArch64/SVE/sqdecb-diagnostics.s
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/
>>> AArch64/SVE/sqdecb-diagnostics.s?rev=334980&r1=
>>> 334979&r2=334980&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/test/MC/AArch64/SVE/sqdecb-diagnostics.s (original)
>>> +++ llvm/trunk/test/MC/AArch64/SVE/sqdecb-diagnostics.s Mon Jun 18
>>> 13:50:33 2018
>>> @@ -20,6 +20,20 @@ sqdecb sp
>>>
>>>
>>>  // -------------------------------------------------------------------------
>>> //
>>> +// Operands not matching up
>>> +
>>> +sqdecb x0, w1
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: operand must be 32-bit form of
>>> destination register
>>> +// CHECK-NEXT: sqdecb x0, w1
>>> +// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> +
>>> +sqdecb x0, x1
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pattern
>>> +// CHECK-NEXT: sqdecb x0, x1
>>> +// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> +
>>> +
>>> +// -------------------------------------------------------------------------
>>> //
>>>  // Immediate not compatible with encode/decode function.
>>>
>>>  sqdecb x0, all, mul #-1
>>>
>>> Modified: llvm/trunk/test/MC/AArch64/SVE/sqdecb.s
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/
>>> AArch64/SVE/sqdecb.s?rev=334980&r1=334979&r2=334980&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/test/MC/AArch64/SVE/sqdecb.s (original)
>>> +++ llvm/trunk/test/MC/AArch64/SVE/sqdecb.s Mon Jun 18 13:50:33 2018
>>> @@ -37,6 +37,47 @@ sqdecb  x0, all, mul #16
>>>
>>>
>>>  // ------------------------------------------------------------
>>> ---------------//
>>> +// Test 32-bit form (x0, w0) and its aliases
>>> +// ------------------------------------------------------------
>>> ---------------//
>>> +
>>> +sqdecb  x0, w0
>>> +// CHECK-INST: sqdecb  x0, w0
>>> +// CHECK-ENCODING: [0xe0,0xfb,0x20,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 fb 20 04 <unknown>
>>> +
>>> +sqdecb  x0, w0, all
>>> +// CHECK-INST: sqdecb  x0, w0
>>> +// CHECK-ENCODING: [0xe0,0xfb,0x20,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 fb 20 04 <unknown>
>>> +
>>> +sqdecb  x0, w0, all, mul #1
>>> +// CHECK-INST: sqdecb  x0, w0
>>> +// CHECK-ENCODING: [0xe0,0xfb,0x20,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 fb 20 04 <unknown>
>>> +
>>> +sqdecb  x0, w0, all, mul #16
>>> +// CHECK-INST: sqdecb  x0, w0, all, mul #16
>>> +// CHECK-ENCODING: [0xe0,0xfb,0x2f,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 fb 2f 04 <unknown>
>>> +
>>> +sqdecb  x0, w0, pow2
>>> +// CHECK-INST: sqdecb  x0, w0, pow2
>>> +// CHECK-ENCODING: [0x00,0xf8,0x20,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: 00 f8 20 04 <unknown>
>>> +
>>> +sqdecb  x0, w0, pow2, mul #16
>>> +// CHECK-INST: sqdecb  x0, w0, pow2, mul #16
>>> +// CHECK-ENCODING: [0x00,0xf8,0x2f,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: 00 f8 2f 04 <unknown>
>>> +
>>> +
>>> +// ------------------------------------------------------------
>>> ---------------//
>>>  // Test all patterns for 64-bit form
>>>  // ------------------------------------------------------------
>>> ---------------//
>>>
>>>
>>> Modified: llvm/trunk/test/MC/AArch64/SVE/sqdecd-diagnostics.s
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/
>>> AArch64/SVE/sqdecd-diagnostics.s?rev=334980&r1=
>>> 334979&r2=334980&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/test/MC/AArch64/SVE/sqdecd-diagnostics.s (original)
>>> +++ llvm/trunk/test/MC/AArch64/SVE/sqdecd-diagnostics.s Mon Jun 18
>>> 13:50:33 2018
>>> @@ -20,6 +20,20 @@ sqdecd sp
>>>
>>>
>>>  // -------------------------------------------------------------------------
>>> //
>>> +// Operands not matching up
>>> +
>>> +sqdecd x0, w1
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: operand must be 32-bit form of
>>> destination register
>>> +// CHECK-NEXT: sqdecd x0, w1
>>> +// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> +
>>> +sqdecd x0, x1
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pattern
>>> +// CHECK-NEXT: sqdecd x0, x1
>>> +// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> +
>>> +
>>> +// -------------------------------------------------------------------------
>>> //
>>>  // Immediate not compatible with encode/decode function.
>>>
>>>  sqdecd x0, all, mul #-1
>>>
>>> Modified: llvm/trunk/test/MC/AArch64/SVE/sqdecd.s
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/
>>> AArch64/SVE/sqdecd.s?rev=334980&r1=334979&r2=334980&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/test/MC/AArch64/SVE/sqdecd.s (original)
>>> +++ llvm/trunk/test/MC/AArch64/SVE/sqdecd.s Mon Jun 18 13:50:33 2018
>>> @@ -37,6 +37,47 @@ sqdecd  x0, all, mul #16
>>>
>>>
>>>  // ------------------------------------------------------------
>>> ---------------//
>>> +// Test 32-bit form (x0, w0) and its aliases
>>> +// ------------------------------------------------------------
>>> ---------------//
>>> +
>>> +sqdecd  x0, w0
>>> +// CHECK-INST: sqdecd  x0, w0
>>> +// CHECK-ENCODING: [0xe0,0xfb,0xe0,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 fb e0 04 <unknown>
>>> +
>>> +sqdecd  x0, w0, all
>>> +// CHECK-INST: sqdecd  x0, w0
>>> +// CHECK-ENCODING: [0xe0,0xfb,0xe0,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 fb e0 04 <unknown>
>>> +
>>> +sqdecd  x0, w0, all, mul #1
>>> +// CHECK-INST: sqdecd  x0, w0
>>> +// CHECK-ENCODING: [0xe0,0xfb,0xe0,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 fb e0 04 <unknown>
>>> +
>>> +sqdecd  x0, w0, all, mul #16
>>> +// CHECK-INST: sqdecd  x0, w0, all, mul #16
>>> +// CHECK-ENCODING: [0xe0,0xfb,0xef,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 fb ef 04 <unknown>
>>> +
>>> +sqdecd  x0, w0, pow2
>>> +// CHECK-INST: sqdecd  x0, w0, pow2
>>> +// CHECK-ENCODING: [0x00,0xf8,0xe0,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: 00 f8 e0 04 <unknown>
>>> +
>>> +sqdecd  x0, w0, pow2, mul #16
>>> +// CHECK-INST: sqdecd  x0, w0, pow2, mul #16
>>> +// CHECK-ENCODING: [0x00,0xf8,0xef,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: 00 f8 ef 04 <unknown>
>>> +
>>> +
>>> +// ------------------------------------------------------------
>>> ---------------//
>>>  // Test all patterns for 64-bit form
>>>  // ------------------------------------------------------------
>>> ---------------//
>>>
>>>
>>> Modified: llvm/trunk/test/MC/AArch64/SVE/sqdech-diagnostics.s
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/
>>> AArch64/SVE/sqdech-diagnostics.s?rev=334980&r1=
>>> 334979&r2=334980&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/test/MC/AArch64/SVE/sqdech-diagnostics.s (original)
>>> +++ llvm/trunk/test/MC/AArch64/SVE/sqdech-diagnostics.s Mon Jun 18
>>> 13:50:33 2018
>>> @@ -20,6 +20,20 @@ sqdech sp
>>>
>>>
>>>  // -------------------------------------------------------------------------
>>> //
>>> +// Operands not matching up
>>> +
>>> +sqdech x0, w1
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: operand must be 32-bit form of
>>> destination register
>>> +// CHECK-NEXT: sqdech x0, w1
>>> +// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> +
>>> +sqdech x0, x1
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pattern
>>> +// CHECK-NEXT: sqdech x0, x1
>>> +// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> +
>>> +
>>> +// -------------------------------------------------------------------------
>>> //
>>>  // Immediate not compatible with encode/decode function.
>>>
>>>  sqdech x0, all, mul #-1
>>>
>>> Modified: llvm/trunk/test/MC/AArch64/SVE/sqdech.s
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/
>>> AArch64/SVE/sqdech.s?rev=334980&r1=334979&r2=334980&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/test/MC/AArch64/SVE/sqdech.s (original)
>>> +++ llvm/trunk/test/MC/AArch64/SVE/sqdech.s Mon Jun 18 13:50:33 2018
>>> @@ -37,6 +37,47 @@ sqdech  x0, all, mul #16
>>>
>>>
>>>  // ------------------------------------------------------------
>>> ---------------//
>>> +// Test 32-bit form (x0, w0) and its aliases
>>> +// ------------------------------------------------------------
>>> ---------------//
>>> +
>>> +sqdech  x0, w0
>>> +// CHECK-INST: sqdech  x0, w0
>>> +// CHECK-ENCODING: [0xe0,0xfb,0x60,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 fb 60 04 <unknown>
>>> +
>>> +sqdech  x0, w0, all
>>> +// CHECK-INST: sqdech  x0, w0
>>> +// CHECK-ENCODING: [0xe0,0xfb,0x60,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 fb 60 04 <unknown>
>>> +
>>> +sqdech  x0, w0, all, mul #1
>>> +// CHECK-INST: sqdech  x0, w0
>>> +// CHECK-ENCODING: [0xe0,0xfb,0x60,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 fb 60 04 <unknown>
>>> +
>>> +sqdech  x0, w0, all, mul #16
>>> +// CHECK-INST: sqdech  x0, w0, all, mul #16
>>> +// CHECK-ENCODING: [0xe0,0xfb,0x6f,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 fb 6f 04 <unknown>
>>> +
>>> +sqdech  x0, w0, pow2
>>> +// CHECK-INST: sqdech  x0, w0, pow2
>>> +// CHECK-ENCODING: [0x00,0xf8,0x60,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: 00 f8 60 04 <unknown>
>>> +
>>> +sqdech  x0, w0, pow2, mul #16
>>> +// CHECK-INST: sqdech  x0, w0, pow2, mul #16
>>> +// CHECK-ENCODING: [0x00,0xf8,0x6f,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: 00 f8 6f 04 <unknown>
>>> +
>>> +
>>> +// ------------------------------------------------------------
>>> ---------------//
>>>  // Test all patterns for 64-bit form
>>>  // ------------------------------------------------------------
>>> ---------------//
>>>
>>>
>>> Modified: llvm/trunk/test/MC/AArch64/SVE/sqdecw-diagnostics.s
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/
>>> AArch64/SVE/sqdecw-diagnostics.s?rev=334980&r1=
>>> 334979&r2=334980&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/test/MC/AArch64/SVE/sqdecw-diagnostics.s (original)
>>> +++ llvm/trunk/test/MC/AArch64/SVE/sqdecw-diagnostics.s Mon Jun 18
>>> 13:50:33 2018
>>> @@ -20,6 +20,20 @@ sqdecw sp
>>>
>>>
>>>  // -------------------------------------------------------------------------
>>> //
>>> +// Operands not matching up
>>> +
>>> +sqdecw x0, w1
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: operand must be 32-bit form of
>>> destination register
>>> +// CHECK-NEXT: sqdecw x0, w1
>>> +// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> +
>>> +sqdecw x0, x1
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pattern
>>> +// CHECK-NEXT: sqdecw x0, x1
>>> +// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> +
>>> +
>>> +// -------------------------------------------------------------------------
>>> //
>>>  // Immediate not compatible with encode/decode function.
>>>
>>>  sqdecw x0, all, mul #-1
>>>
>>> Modified: llvm/trunk/test/MC/AArch64/SVE/sqdecw.s
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/
>>> AArch64/SVE/sqdecw.s?rev=334980&r1=334979&r2=334980&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/test/MC/AArch64/SVE/sqdecw.s (original)
>>> +++ llvm/trunk/test/MC/AArch64/SVE/sqdecw.s Mon Jun 18 13:50:33 2018
>>> @@ -37,6 +37,47 @@ sqdecw  x0, all, mul #16
>>>
>>>
>>>  // ------------------------------------------------------------
>>> ---------------//
>>> +// Test 32-bit form (x0, w0) and its aliases
>>> +// ------------------------------------------------------------
>>> ---------------//
>>> +
>>> +sqdecw  x0, w0
>>> +// CHECK-INST: sqdecw  x0, w0
>>> +// CHECK-ENCODING: [0xe0,0xfb,0xa0,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 fb a0 04 <unknown>
>>> +
>>> +sqdecw  x0, w0, all
>>> +// CHECK-INST: sqdecw  x0, w0
>>> +// CHECK-ENCODING: [0xe0,0xfb,0xa0,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 fb a0 04 <unknown>
>>> +
>>> +sqdecw  x0, w0, all, mul #1
>>> +// CHECK-INST: sqdecw  x0, w0
>>> +// CHECK-ENCODING: [0xe0,0xfb,0xa0,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 fb a0 04 <unknown>
>>> +
>>> +sqdecw  x0, w0, all, mul #16
>>> +// CHECK-INST: sqdecw  x0, w0, all, mul #16
>>> +// CHECK-ENCODING: [0xe0,0xfb,0xaf,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 fb af 04 <unknown>
>>> +
>>> +sqdecw  x0, w0, pow2
>>> +// CHECK-INST: sqdecw  x0, w0, pow2
>>> +// CHECK-ENCODING: [0x00,0xf8,0xa0,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: 00 f8 a0 04 <unknown>
>>> +
>>> +sqdecw  x0, w0, pow2, mul #16
>>> +// CHECK-INST: sqdecw  x0, w0, pow2, mul #16
>>> +// CHECK-ENCODING: [0x00,0xf8,0xaf,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: 00 f8 af 04 <unknown>
>>> +
>>> +
>>> +// ------------------------------------------------------------
>>> ---------------//
>>>  // Test all patterns for 64-bit form
>>>  // ------------------------------------------------------------
>>> ---------------//
>>>
>>>
>>> Modified: llvm/trunk/test/MC/AArch64/SVE/sqincb-diagnostics.s
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/
>>> AArch64/SVE/sqincb-diagnostics.s?rev=334980&r1=
>>> 334979&r2=334980&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/test/MC/AArch64/SVE/sqincb-diagnostics.s (original)
>>> +++ llvm/trunk/test/MC/AArch64/SVE/sqincb-diagnostics.s Mon Jun 18
>>> 13:50:33 2018
>>> @@ -20,6 +20,20 @@ sqincb sp
>>>
>>>
>>>  // -------------------------------------------------------------------------
>>> //
>>> +// Operands not matching up
>>> +
>>> +sqincb x0, w1
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: operand must be 32-bit form of
>>> destination register
>>> +// CHECK-NEXT: sqincb x0, w1
>>> +// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> +
>>> +sqincb x0, x0
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pattern
>>> +// CHECK-NEXT: sqincb x0, x0
>>> +// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> +
>>> +
>>> +// -------------------------------------------------------------------------
>>> //
>>>  // Immediate not compatible with encode/decode function.
>>>
>>>  sqincb x0, all, mul #-1
>>>
>>> Modified: llvm/trunk/test/MC/AArch64/SVE/sqincb.s
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/
>>> AArch64/SVE/sqincb.s?rev=334980&r1=334979&r2=334980&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/test/MC/AArch64/SVE/sqincb.s (original)
>>> +++ llvm/trunk/test/MC/AArch64/SVE/sqincb.s Mon Jun 18 13:50:33 2018
>>> @@ -37,6 +37,47 @@ sqincb  x0, all, mul #16
>>>
>>>
>>>  // ------------------------------------------------------------
>>> ---------------//
>>> +// Test 32-bit form (x0, w0) and its aliases
>>> +// ------------------------------------------------------------
>>> ---------------//
>>> +
>>> +sqincb  x0, w0
>>> +// CHECK-INST: sqincb  x0, w0
>>> +// CHECK-ENCODING: [0xe0,0xf3,0x20,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 f3 20 04 <unknown>
>>> +
>>> +sqincb  x0, w0, all
>>> +// CHECK-INST: sqincb  x0, w0
>>> +// CHECK-ENCODING: [0xe0,0xf3,0x20,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 f3 20 04 <unknown>
>>> +
>>> +sqincb  x0, w0, all, mul #1
>>> +// CHECK-INST: sqincb  x0, w0
>>> +// CHECK-ENCODING: [0xe0,0xf3,0x20,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 f3 20 04 <unknown>
>>> +
>>> +sqincb  x0, w0, all, mul #16
>>> +// CHECK-INST: sqincb  x0, w0, all, mul #16
>>> +// CHECK-ENCODING: [0xe0,0xf3,0x2f,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 f3 2f 04 <unknown>
>>> +
>>> +sqincb  x0, w0, pow2
>>> +// CHECK-INST: sqincb  x0, w0, pow2
>>> +// CHECK-ENCODING: [0x00,0xf0,0x20,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: 00 f0 20 04 <unknown>
>>> +
>>> +sqincb  x0, w0, pow2, mul #16
>>> +// CHECK-INST: sqincb  x0, w0, pow2, mul #16
>>> +// CHECK-ENCODING: [0x00,0xf0,0x2f,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: 00 f0 2f 04 <unknown>
>>> +
>>> +
>>> +// ------------------------------------------------------------
>>> ---------------//
>>>  // Test all patterns for 64-bit form
>>>  // ------------------------------------------------------------
>>> ---------------//
>>>
>>>
>>> Modified: llvm/trunk/test/MC/AArch64/SVE/sqincd-diagnostics.s
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/
>>> AArch64/SVE/sqincd-diagnostics.s?rev=334980&r1=
>>> 334979&r2=334980&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/test/MC/AArch64/SVE/sqincd-diagnostics.s (original)
>>> +++ llvm/trunk/test/MC/AArch64/SVE/sqincd-diagnostics.s Mon Jun 18
>>> 13:50:33 2018
>>> @@ -20,6 +20,20 @@ sqincd sp
>>>
>>>
>>>  // -------------------------------------------------------------------------
>>> //
>>> +// Operands not matching up
>>> +
>>> +sqincd x0, w1
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: operand must be 32-bit form of
>>> destination register
>>> +// CHECK-NEXT: sqincd x0, w1
>>> +// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> +
>>> +sqincd x0, x0
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pattern
>>> +// CHECK-NEXT: sqincd x0, x0
>>> +// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> +
>>> +
>>> +// -------------------------------------------------------------------------
>>> //
>>>  // Immediate not compatible with encode/decode function.
>>>
>>>  sqincd x0, all, mul #-1
>>>
>>> Modified: llvm/trunk/test/MC/AArch64/SVE/sqincd.s
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/
>>> AArch64/SVE/sqincd.s?rev=334980&r1=334979&r2=334980&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/test/MC/AArch64/SVE/sqincd.s (original)
>>> +++ llvm/trunk/test/MC/AArch64/SVE/sqincd.s Mon Jun 18 13:50:33 2018
>>> @@ -37,6 +37,47 @@ sqincd  x0, all, mul #16
>>>
>>>
>>>  // ------------------------------------------------------------
>>> ---------------//
>>> +// Test 32-bit form (x0, w0) and its aliases
>>> +// ------------------------------------------------------------
>>> ---------------//
>>> +
>>> +sqincd  x0, w0
>>> +// CHECK-INST: sqincd  x0, w0
>>> +// CHECK-ENCODING: [0xe0,0xf3,0xe0,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 f3 e0 04 <unknown>
>>> +
>>> +sqincd  x0, w0, all
>>> +// CHECK-INST: sqincd  x0, w0
>>> +// CHECK-ENCODING: [0xe0,0xf3,0xe0,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 f3 e0 04 <unknown>
>>> +
>>> +sqincd  x0, w0, all, mul #1
>>> +// CHECK-INST: sqincd  x0, w0
>>> +// CHECK-ENCODING: [0xe0,0xf3,0xe0,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 f3 e0 04 <unknown>
>>> +
>>> +sqincd  x0, w0, all, mul #16
>>> +// CHECK-INST: sqincd  x0, w0, all
>>> +// CHECK-ENCODING: [0xe0,0xf3,0xef,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 f3 ef 04 <unknown>
>>> +
>>> +sqincd  x0, w0, pow2
>>> +// CHECK-INST: sqincd  x0, w0, pow2
>>> +// CHECK-ENCODING: [0x00,0xf0,0xe0,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: 00 f0 e0 04 <unknown>
>>> +
>>> +sqincd  x0, w0, pow2, mul #16
>>> +// CHECK-INST: sqincd  x0, w0, pow2, mul #16
>>> +// CHECK-ENCODING: [0x00,0xf0,0xef,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: 00 f0 ef 04 <unknown>
>>> +
>>> +
>>> +// ------------------------------------------------------------
>>> ---------------//
>>>  // Test all patterns for 64-bit form
>>>  // ------------------------------------------------------------
>>> ---------------//
>>>
>>>
>>> Modified: llvm/trunk/test/MC/AArch64/SVE/sqinch-diagnostics.s
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/
>>> AArch64/SVE/sqinch-diagnostics.s?rev=334980&r1=
>>> 334979&r2=334980&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/test/MC/AArch64/SVE/sqinch-diagnostics.s (original)
>>> +++ llvm/trunk/test/MC/AArch64/SVE/sqinch-diagnostics.s Mon Jun 18
>>> 13:50:33 2018
>>> @@ -20,6 +20,20 @@ sqinch sp
>>>
>>>
>>>  // -------------------------------------------------------------------------
>>> //
>>> +// Operands not matching up
>>> +
>>> +sqinch x0, w1
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: operand must be 32-bit form of
>>> destination register
>>> +// CHECK-NEXT: sqinch x0, w1
>>> +// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> +
>>> +sqinch x0, x0
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pattern
>>> +// CHECK-NEXT: sqinch x0, x0
>>> +// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> +
>>> +
>>> +// -------------------------------------------------------------------------
>>> //
>>>  // Immediate not compatible with encode/decode function.
>>>
>>>  sqinch x0, all, mul #-1
>>>
>>> Modified: llvm/trunk/test/MC/AArch64/SVE/sqinch.s
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/
>>> AArch64/SVE/sqinch.s?rev=334980&r1=334979&r2=334980&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/test/MC/AArch64/SVE/sqinch.s (original)
>>> +++ llvm/trunk/test/MC/AArch64/SVE/sqinch.s Mon Jun 18 13:50:33 2018
>>> @@ -37,6 +37,47 @@ sqinch  x0, all, mul #16
>>>
>>>
>>>  // ------------------------------------------------------------
>>> ---------------//
>>> +// Test 32-bit form (x0, w0) and its aliases
>>> +// ------------------------------------------------------------
>>> ---------------//
>>> +
>>> +sqinch  x0, w0
>>> +// CHECK-INST: sqinch  x0, w0
>>> +// CHECK-ENCODING: [0xe0,0xf3,0x60,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 f3 60 04 <unknown>
>>> +
>>> +sqinch  x0, w0, all
>>> +// CHECK-INST: sqinch  x0, w0
>>> +// CHECK-ENCODING: [0xe0,0xf3,0x60,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 f3 60 04 <unknown>
>>> +
>>> +sqinch  x0, w0, all, mul #1
>>> +// CHECK-INST: sqinch  x0, w0
>>> +// CHECK-ENCODING: [0xe0,0xf3,0x60,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 f3 60 04 <unknown>
>>> +
>>> +sqinch  x0, w0, all, mul #16
>>> +// CHECK-INST: sqinch  x0, w0, all, mul #16
>>> +// CHECK-ENCODING: [0xe0,0xf3,0x6f,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 f3 6f 04 <unknown>
>>> +
>>> +sqinch  x0, w0, pow2
>>> +// CHECK-INST: sqinch  x0, w0, pow2
>>> +// CHECK-ENCODING: [0x00,0xf0,0x60,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: 00 f0 60 04 <unknown>
>>> +
>>> +sqinch  x0, w0, pow2, mul #16
>>> +// CHECK-INST: sqinch  x0, w0, pow2, mul #16
>>> +// CHECK-ENCODING: [0x00,0xf0,0x6f,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: 00 f0 6f 04 <unknown>
>>> +
>>> +
>>> +// ------------------------------------------------------------
>>> ---------------//
>>>  // Test all patterns for 64-bit form
>>>  // ------------------------------------------------------------
>>> ---------------//
>>>
>>>
>>> Modified: llvm/trunk/test/MC/AArch64/SVE/sqincw-diagnostics.s
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/
>>> AArch64/SVE/sqincw-diagnostics.s?rev=334980&r1=
>>> 334979&r2=334980&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/test/MC/AArch64/SVE/sqincw-diagnostics.s (original)
>>> +++ llvm/trunk/test/MC/AArch64/SVE/sqincw-diagnostics.s Mon Jun 18
>>> 13:50:33 2018
>>> @@ -20,6 +20,20 @@ sqincw sp
>>>
>>>
>>>  // -------------------------------------------------------------------------
>>> //
>>> +// Operands not matching up
>>> +
>>> +sqincw x0, w1
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: operand must be 32-bit form of
>>> destination register
>>> +// CHECK-NEXT: sqincw x0, w1
>>> +// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> +
>>> +sqincw x0, x0
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pattern
>>> +// CHECK-NEXT: sqincw x0, x0
>>> +// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> +
>>> +
>>> +// -------------------------------------------------------------------------
>>> //
>>>  // Immediate not compatible with encode/decode function.
>>>
>>>  sqincw x0, all, mul #-1
>>>
>>> Modified: llvm/trunk/test/MC/AArch64/SVE/sqincw.s
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/
>>> AArch64/SVE/sqincw.s?rev=334980&r1=334979&r2=334980&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/test/MC/AArch64/SVE/sqincw.s (original)
>>> +++ llvm/trunk/test/MC/AArch64/SVE/sqincw.s Mon Jun 18 13:50:33 2018
>>> @@ -37,6 +37,47 @@ sqincw  x0, all, mul #16
>>>
>>>
>>>  // ------------------------------------------------------------
>>> ---------------//
>>> +// Test 32-bit form (x0, w0) and its aliases
>>> +// ------------------------------------------------------------
>>> ---------------//
>>> +
>>> +sqincw  x0, w0
>>> +// CHECK-INST: sqincw  x0, w0
>>> +// CHECK-ENCODING: [0xe0,0xf3,0xa0,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 f3 a0 04 <unknown>
>>> +
>>> +sqincw  x0, w0, all
>>> +// CHECK-INST: sqincw  x0, w0
>>> +// CHECK-ENCODING: [0xe0,0xf3,0xa0,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 f3 a0 04 <unknown>
>>> +
>>> +sqincw  x0, w0, all, mul #1
>>> +// CHECK-INST: sqincw  x0, w0
>>> +// CHECK-ENCODING: [0xe0,0xf3,0xa0,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 f3 a0 04 <unknown>
>>> +
>>> +sqincw  x0, w0, all, mul #16
>>> +// CHECK-INST: sqincw  x0, w0, all, mul #16
>>> +// CHECK-ENCODING: [0xe0,0xf3,0xaf,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 f3 af 04 <unknown>
>>> +
>>> +sqincw  x0, w0, pow2
>>> +// CHECK-INST: sqincw  x0, w0, pow2
>>> +// CHECK-ENCODING: [0x00,0xf0,0xa0,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: 00 f0 a0 04 <unknown>
>>> +
>>> +sqincw  x0, w0, pow2, mul #16
>>> +// CHECK-INST: sqincw  x0, w0, pow2, mul #16
>>> +// CHECK-ENCODING: [0x00,0xf0,0xaf,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: 00 f0 af 04 <unknown>
>>> +
>>> +
>>> +// ------------------------------------------------------------
>>> ---------------//
>>>  // Test all patterns for 64-bit form
>>>  // ------------------------------------------------------------
>>> ---------------//
>>>
>>>
>>> Modified: llvm/trunk/test/MC/AArch64/SVE/uqdecb-diagnostics.s
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/
>>> AArch64/SVE/uqdecb-diagnostics.s?rev=334980&r1=
>>> 334979&r2=334980&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/test/MC/AArch64/SVE/uqdecb-diagnostics.s (original)
>>> +++ llvm/trunk/test/MC/AArch64/SVE/uqdecb-diagnostics.s Mon Jun 18
>>> 13:50:33 2018
>>> @@ -3,11 +3,6 @@
>>>  // -------------------------------------------------------------------------
>>> //
>>>  // Invalid result register
>>>
>>> -uqdecb w0
>>> -// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand
>>> -// CHECK-NEXT: uqdecb w0
>>> -// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> -
>>>  uqdecb wsp
>>>  // CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand
>>>  // CHECK-NEXT: uqdecb wsp
>>> @@ -19,6 +14,25 @@ uqdecb sp
>>>  // CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>>
>>>
>>> +// -------------------------------------------------------------------------
>>> //
>>> +// Operands not matching up (unsigned dec only has one register operand)
>>> +
>>> +uqdecb x0, w0
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pattern
>>> +// CHECK-NEXT: uqdecb x0, w0
>>> +// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> +
>>> +uqdecb w0, w0
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pattern
>>> +// CHECK-NEXT: uqdecb w0, w0
>>> +// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> +
>>> +uqdecb x0, x0
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pattern
>>> +// CHECK-NEXT: uqdecb x0, x0
>>> +// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> +
>>> +
>>>  // -------------------------------------------------------------------------
>>> //
>>>  // Immediate not compatible with encode/decode function.
>>>
>>>
>>> Modified: llvm/trunk/test/MC/AArch64/SVE/uqdecb.s
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/
>>> AArch64/SVE/uqdecb.s?rev=334980&r1=334979&r2=334980&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/test/MC/AArch64/SVE/uqdecb.s (original)
>>> +++ llvm/trunk/test/MC/AArch64/SVE/uqdecb.s Mon Jun 18 13:50:33 2018
>>> @@ -37,6 +37,47 @@ uqdecb  x0, all, mul #16
>>>
>>>
>>>  // ------------------------------------------------------------
>>> ---------------//
>>> +// Test 32-bit form (w0) and its aliases
>>> +// ------------------------------------------------------------
>>> ---------------//
>>> +
>>> +uqdecb  w0
>>> +// CHECK-INST: uqdecb  w0
>>> +// CHECK-ENCODING: [0xe0,0xff,0x20,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 ff 20 04 <unknown>
>>> +
>>> +uqdecb  w0, all
>>> +// CHECK-INST: uqdecb  w0
>>> +// CHECK-ENCODING: [0xe0,0xff,0x20,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 ff 20 04 <unknown>
>>> +
>>> +uqdecb  w0, all, mul #1
>>> +// CHECK-INST: uqdecb  w0
>>> +// CHECK-ENCODING: [0xe0,0xff,0x20,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 ff 20 04 <unknown>
>>> +
>>> +uqdecb  w0, all, mul #16
>>> +// CHECK-INST: uqdecb  w0, all, mul #16
>>> +// CHECK-ENCODING: [0xe0,0xff,0x2f,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 ff 2f 04 <unknown>
>>> +
>>> +uqdecb  w0, pow2
>>> +// CHECK-INST: uqdecb  w0, pow2
>>> +// CHECK-ENCODING: [0x00,0xfc,0x20,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: 00 fc 20 04 <unknown>
>>> +
>>> +uqdecb  w0, pow2, mul #16
>>> +// CHECK-INST: uqdecb  w0, pow2, mul #16
>>> +// CHECK-ENCODING: [0x00,0xfc,0x2f,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: 00 fc 2f 04 <unknown>
>>> +
>>> +
>>> +// ------------------------------------------------------------
>>> ---------------//
>>>  // Test all patterns for 64-bit form
>>>  // ------------------------------------------------------------
>>> ---------------//
>>>
>>>
>>> Modified: llvm/trunk/test/MC/AArch64/SVE/uqdecd-diagnostics.s
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/
>>> AArch64/SVE/uqdecd-diagnostics.s?rev=334980&r1=
>>> 334979&r2=334980&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/test/MC/AArch64/SVE/uqdecd-diagnostics.s (original)
>>> +++ llvm/trunk/test/MC/AArch64/SVE/uqdecd-diagnostics.s Mon Jun 18
>>> 13:50:33 2018
>>> @@ -3,11 +3,6 @@
>>>  // -------------------------------------------------------------------------
>>> //
>>>  // Invalid result register
>>>
>>> -uqdecd w0
>>> -// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand
>>> -// CHECK-NEXT: uqdecd w0
>>> -// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> -
>>>  uqdecd wsp
>>>  // CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand
>>>  // CHECK-NEXT: uqdecd wsp
>>> @@ -19,6 +14,25 @@ uqdecd sp
>>>  // CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>>
>>>
>>> +// -------------------------------------------------------------------------
>>> //
>>> +// Operands not matching up (unsigned dec only has one register operand)
>>> +
>>> +uqdecd x0, w0
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pattern
>>> +// CHECK-NEXT: uqdecd x0, w0
>>> +// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> +
>>> +uqdecd w0, w0
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pattern
>>> +// CHECK-NEXT: uqdecd w0, w0
>>> +// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> +
>>> +uqdecd x0, x0
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pattern
>>> +// CHECK-NEXT: uqdecd x0, x0
>>> +// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> +
>>> +
>>>  // -------------------------------------------------------------------------
>>> //
>>>  // Immediate not compatible with encode/decode function.
>>>
>>>
>>> Modified: llvm/trunk/test/MC/AArch64/SVE/uqdecd.s
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/
>>> AArch64/SVE/uqdecd.s?rev=334980&r1=334979&r2=334980&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/test/MC/AArch64/SVE/uqdecd.s (original)
>>> +++ llvm/trunk/test/MC/AArch64/SVE/uqdecd.s Mon Jun 18 13:50:33 2018
>>> @@ -37,6 +37,47 @@ uqdecd  x0, all, mul #16
>>>
>>>
>>>  // ------------------------------------------------------------
>>> ---------------//
>>> +// Test 32-bit form (w0) and its aliases
>>> +// ------------------------------------------------------------
>>> ---------------//
>>> +
>>> +uqdecd  w0
>>> +// CHECK-INST: uqdecd  w0
>>> +// CHECK-ENCODING: [0xe0,0xff,0xe0,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 ff e0 04 <unknown>
>>> +
>>> +uqdecd  w0, all
>>> +// CHECK-INST: uqdecd  w0
>>> +// CHECK-ENCODING: [0xe0,0xff,0xe0,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 ff e0 04 <unknown>
>>> +
>>> +uqdecd  w0, all, mul #1
>>> +// CHECK-INST: uqdecd  w0
>>> +// CHECK-ENCODING: [0xe0,0xff,0xe0,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 ff e0 04 <unknown>
>>> +
>>> +uqdecd  w0, all, mul #16
>>> +// CHECK-INST: uqdecd  w0, all, mul #16
>>> +// CHECK-ENCODING: [0xe0,0xff,0xef,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 ff ef 04 <unknown>
>>> +
>>> +uqdecd  w0, pow2
>>> +// CHECK-INST: uqdecd  w0, pow2
>>> +// CHECK-ENCODING: [0x00,0xfc,0xe0,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: 00 fc e0 04 <unknown>
>>> +
>>> +uqdecd  w0, pow2, mul #16
>>> +// CHECK-INST: uqdecd  w0, pow2, mul #16
>>> +// CHECK-ENCODING: [0x00,0xfc,0xef,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: 00 fc ef 04 <unknown>
>>> +
>>> +
>>> +// ------------------------------------------------------------
>>> ---------------//
>>>  // Test all patterns for 64-bit form
>>>  // ------------------------------------------------------------
>>> ---------------//
>>>
>>>
>>> Modified: llvm/trunk/test/MC/AArch64/SVE/uqdech-diagnostics.s
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/
>>> AArch64/SVE/uqdech-diagnostics.s?rev=334980&r1=
>>> 334979&r2=334980&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/test/MC/AArch64/SVE/uqdech-diagnostics.s (original)
>>> +++ llvm/trunk/test/MC/AArch64/SVE/uqdech-diagnostics.s Mon Jun 18
>>> 13:50:33 2018
>>> @@ -3,11 +3,6 @@
>>>  // -------------------------------------------------------------------------
>>> //
>>>  // Invalid result register
>>>
>>> -uqdech w0
>>> -// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand
>>> -// CHECK-NEXT: uqdech w0
>>> -// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> -
>>>  uqdech wsp
>>>  // CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand
>>>  // CHECK-NEXT: uqdech wsp
>>> @@ -19,6 +14,25 @@ uqdech sp
>>>  // CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>>
>>>
>>> +// -------------------------------------------------------------------------
>>> //
>>> +// Operands not matching up (unsigned dec only has one register operand)
>>> +
>>> +uqdech x0, w0
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pattern
>>> +// CHECK-NEXT: uqdech x0, w0
>>> +// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> +
>>> +uqdech w0, w0
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pattern
>>> +// CHECK-NEXT: uqdech w0, w0
>>> +// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> +
>>> +uqdech x0, x0
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pattern
>>> +// CHECK-NEXT: uqdech x0, x0
>>> +// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> +
>>> +
>>>  // -------------------------------------------------------------------------
>>> //
>>>  // Immediate not compatible with encode/decode function.
>>>
>>>
>>> Modified: llvm/trunk/test/MC/AArch64/SVE/uqdech.s
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/
>>> AArch64/SVE/uqdech.s?rev=334980&r1=334979&r2=334980&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/test/MC/AArch64/SVE/uqdech.s (original)
>>> +++ llvm/trunk/test/MC/AArch64/SVE/uqdech.s Mon Jun 18 13:50:33 2018
>>> @@ -37,6 +37,47 @@ uqdech  x0, all, mul #16
>>>
>>>
>>>  // ------------------------------------------------------------
>>> ---------------//
>>> +// Test 32-bit form (w0) and its aliases
>>> +// ------------------------------------------------------------
>>> ---------------//
>>> +
>>> +uqdech  w0
>>> +// CHECK-INST: uqdech  w0
>>> +// CHECK-ENCODING: [0xe0,0xff,0x60,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 ff 60 04 <unknown>
>>> +
>>> +uqdech  w0, all
>>> +// CHECK-INST: uqdech  w0
>>> +// CHECK-ENCODING: [0xe0,0xff,0x60,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 ff 60 04 <unknown>
>>> +
>>> +uqdech  w0, all, mul #1
>>> +// CHECK-INST: uqdech  w0
>>> +// CHECK-ENCODING: [0xe0,0xff,0x60,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 ff 60 04 <unknown>
>>> +
>>> +uqdech  w0, all, mul #16
>>> +// CHECK-INST: uqdech  w0, all, mul #16
>>> +// CHECK-ENCODING: [0xe0,0xff,0x6f,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 ff 6f 04 <unknown>
>>> +
>>> +uqdech  w0, pow2
>>> +// CHECK-INST: uqdech  w0, pow2
>>> +// CHECK-ENCODING: [0x00,0xfc,0x60,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: 00 fc 60 04 <unknown>
>>> +
>>> +uqdech  w0, pow2, mul #16
>>> +// CHECK-INST: uqdech  w0, pow2, mul #16
>>> +// CHECK-ENCODING: [0x00,0xfc,0x6f,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: 00 fc 6f 04 <unknown>
>>> +
>>> +
>>> +// ------------------------------------------------------------
>>> ---------------//
>>>  // Test all patterns for 64-bit form
>>>  // ------------------------------------------------------------
>>> ---------------//
>>>
>>>
>>> Modified: llvm/trunk/test/MC/AArch64/SVE/uqdecw-diagnostics.s
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/
>>> AArch64/SVE/uqdecw-diagnostics.s?rev=334980&r1=
>>> 334979&r2=334980&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/test/MC/AArch64/SVE/uqdecw-diagnostics.s (original)
>>> +++ llvm/trunk/test/MC/AArch64/SVE/uqdecw-diagnostics.s Mon Jun 18
>>> 13:50:33 2018
>>> @@ -3,11 +3,6 @@
>>>  // -------------------------------------------------------------------------
>>> //
>>>  // Invalid result register
>>>
>>> -uqdecw w0
>>> -// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand
>>> -// CHECK-NEXT: uqdecw w0
>>> -// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> -
>>>  uqdecw wsp
>>>  // CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand
>>>  // CHECK-NEXT: uqdecw wsp
>>> @@ -19,6 +14,25 @@ uqdecw sp
>>>  // CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>>
>>>
>>> +// -------------------------------------------------------------------------
>>> //
>>> +// Operands not matching up (unsigned dec only has one register operand)
>>> +
>>> +uqdecw x0, w0
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pattern
>>> +// CHECK-NEXT: uqdecw x0, w0
>>> +// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> +
>>> +uqdecw w0, w0
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pattern
>>> +// CHECK-NEXT: uqdecw w0, w0
>>> +// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> +
>>> +uqdecw x0, x0
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pattern
>>> +// CHECK-NEXT: uqdecw x0, x0
>>> +// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> +
>>> +
>>>  // -------------------------------------------------------------------------
>>> //
>>>  // Immediate not compatible with encode/decode function.
>>>
>>>
>>> Modified: llvm/trunk/test/MC/AArch64/SVE/uqdecw.s
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/
>>> AArch64/SVE/uqdecw.s?rev=334980&r1=334979&r2=334980&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/test/MC/AArch64/SVE/uqdecw.s (original)
>>> +++ llvm/trunk/test/MC/AArch64/SVE/uqdecw.s Mon Jun 18 13:50:33 2018
>>> @@ -37,6 +37,47 @@ uqdecw  x0, all, mul #16
>>>
>>>
>>>  // ------------------------------------------------------------
>>> ---------------//
>>> +// Test 32-bit form (w0) and its aliases
>>> +// ------------------------------------------------------------
>>> ---------------//
>>> +
>>> +uqdecw  w0
>>> +// CHECK-INST: uqdecw  w0
>>> +// CHECK-ENCODING: [0xe0,0xff,0xa0,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 ff a0 04 <unknown>
>>> +
>>> +uqdecw  w0, all
>>> +// CHECK-INST: uqdecw  w0
>>> +// CHECK-ENCODING: [0xe0,0xff,0xa0,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 ff a0 04 <unknown>
>>> +
>>> +uqdecw  w0, all, mul #1
>>> +// CHECK-INST: uqdecw  w0
>>> +// CHECK-ENCODING: [0xe0,0xff,0xa0,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 ff a0 04 <unknown>
>>> +
>>> +uqdecw  w0, all, mul #16
>>> +// CHECK-INST: uqdecw  w0, all, mul #16
>>> +// CHECK-ENCODING: [0xe0,0xff,0xaf,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 ff af 04 <unknown>
>>> +
>>> +uqdecw  w0, pow2
>>> +// CHECK-INST: uqdecw  w0, pow2
>>> +// CHECK-ENCODING: [0x00,0xfc,0xa0,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: 00 fc a0 04 <unknown>
>>> +
>>> +uqdecw  w0, pow2, mul #16
>>> +// CHECK-INST: uqdecw  w0, pow2, mul #16
>>> +// CHECK-ENCODING: [0x00,0xfc,0xaf,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: 00 fc af 04 <unknown>
>>> +
>>> +
>>> +// ------------------------------------------------------------
>>> ---------------//
>>>  // Test all patterns for 64-bit form
>>>  // ------------------------------------------------------------
>>> ---------------//
>>>
>>>
>>> Modified: llvm/trunk/test/MC/AArch64/SVE/uqincb-diagnostics.s
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/
>>> AArch64/SVE/uqincb-diagnostics.s?rev=334980&r1=
>>> 334979&r2=334980&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/test/MC/AArch64/SVE/uqincb-diagnostics.s (original)
>>> +++ llvm/trunk/test/MC/AArch64/SVE/uqincb-diagnostics.s Mon Jun 18
>>> 13:50:33 2018
>>> @@ -3,11 +3,6 @@
>>>  // -------------------------------------------------------------------------
>>> //
>>>  // Invalid result register
>>>
>>> -uqincb w0
>>> -// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand
>>> -// CHECK-NEXT: uqincb w0
>>> -// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> -
>>>  uqincb wsp
>>>  // CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand
>>>  // CHECK-NEXT: uqincb wsp
>>> @@ -19,6 +14,25 @@ uqincb sp
>>>  // CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>>
>>>
>>> +// -------------------------------------------------------------------------
>>> //
>>> +// Operands not matching up (unsigned inc only has one register operand)
>>> +
>>> +uqincb x0, w0
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pattern
>>> +// CHECK-NEXT: uqincb x0, w0
>>> +// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> +
>>> +uqincb w0, w0
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pattern
>>> +// CHECK-NEXT: uqincb w0, w0
>>> +// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> +
>>> +uqincb x0, x0
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pattern
>>> +// CHECK-NEXT: uqincb x0, x0
>>> +// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> +
>>> +
>>>  // -------------------------------------------------------------------------
>>> //
>>>  // Immediate not compatible with encode/decode function.
>>>
>>>
>>> Modified: llvm/trunk/test/MC/AArch64/SVE/uqincb.s
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/
>>> AArch64/SVE/uqincb.s?rev=334980&r1=334979&r2=334980&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/test/MC/AArch64/SVE/uqincb.s (original)
>>> +++ llvm/trunk/test/MC/AArch64/SVE/uqincb.s Mon Jun 18 13:50:33 2018
>>> @@ -37,6 +37,47 @@ uqincb  x0, all, mul #16
>>>
>>>
>>>  // ------------------------------------------------------------
>>> ---------------//
>>> +// Test 32-bit form (w0) and its aliases
>>> +// ------------------------------------------------------------
>>> ---------------//
>>> +
>>> +uqincb  w0
>>> +// CHECK-INST: uqincb  w0
>>> +// CHECK-ENCODING: [0xe0,0xf7,0x20,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 f7 20 04 <unknown>
>>> +
>>> +uqincb  w0, all
>>> +// CHECK-INST: uqincb  w0
>>> +// CHECK-ENCODING: [0xe0,0xf7,0x20,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 f7 20 04 <unknown>
>>> +
>>> +uqincb  w0, all, mul #1
>>> +// CHECK-INST: uqincb  w0
>>> +// CHECK-ENCODING: [0xe0,0xf7,0x20,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 f7 20 04 <unknown>
>>> +
>>> +uqincb  w0, all, mul #16
>>> +// CHECK-INST: uqincb  w0, all, mul #16
>>> +// CHECK-ENCODING: [0xe0,0xf7,0x2f,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 f7 2f 04 <unknown>
>>> +
>>> +uqincb  w0, pow2
>>> +// CHECK-INST: uqincb  w0, pow2
>>> +// CHECK-ENCODING: [0x00,0xf4,0x20,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: 00 f4 20 04 <unknown>
>>> +
>>> +uqincb  w0, pow2, mul #16
>>> +// CHECK-INST: uqincb  w0, pow2, mul #16
>>> +// CHECK-ENCODING: [0x00,0xf4,0x2f,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: 00 f4 2f 04 <unknown>
>>> +
>>> +
>>> +// ------------------------------------------------------------
>>> ---------------//
>>>  // Test all patterns for 64-bit form
>>>  // ------------------------------------------------------------
>>> ---------------//
>>>
>>>
>>> Modified: llvm/trunk/test/MC/AArch64/SVE/uqincd-diagnostics.s
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/
>>> AArch64/SVE/uqincd-diagnostics.s?rev=334980&r1=
>>> 334979&r2=334980&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/test/MC/AArch64/SVE/uqincd-diagnostics.s (original)
>>> +++ llvm/trunk/test/MC/AArch64/SVE/uqincd-diagnostics.s Mon Jun 18
>>> 13:50:33 2018
>>> @@ -3,11 +3,6 @@
>>>  // -------------------------------------------------------------------------
>>> //
>>>  // Invalid result register
>>>
>>> -uqincd w0
>>> -// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand
>>> -// CHECK-NEXT: uqincd w0
>>> -// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> -
>>>  uqincd wsp
>>>  // CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand
>>>  // CHECK-NEXT: uqincd wsp
>>> @@ -19,6 +14,25 @@ uqincd sp
>>>  // CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>>
>>>
>>> +// -------------------------------------------------------------------------
>>> //
>>> +// Operands not matching up (unsigned inc only has one register operand)
>>> +
>>> +uqincd x0, w0
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pattern
>>> +// CHECK-NEXT: uqincd x0, w0
>>> +// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> +
>>> +uqincd w0, w0
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pattern
>>> +// CHECK-NEXT: uqincd w0, w0
>>> +// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> +
>>> +uqincd x0, x0
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pattern
>>> +// CHECK-NEXT: uqincd x0, x0
>>> +// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> +
>>> +
>>>  // -------------------------------------------------------------------------
>>> //
>>>  // Immediate not compatible with encode/decode function.
>>>
>>>
>>> Modified: llvm/trunk/test/MC/AArch64/SVE/uqincd.s
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/
>>> AArch64/SVE/uqincd.s?rev=334980&r1=334979&r2=334980&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/test/MC/AArch64/SVE/uqincd.s (original)
>>> +++ llvm/trunk/test/MC/AArch64/SVE/uqincd.s Mon Jun 18 13:50:33 2018
>>> @@ -37,6 +37,47 @@ uqincd  x0, all, mul #16
>>>
>>>
>>>  // ------------------------------------------------------------
>>> ---------------//
>>> +// Test 32-bit form (w0) and its aliases
>>> +// ------------------------------------------------------------
>>> ---------------//
>>> +
>>> +uqincd  w0
>>> +// CHECK-INST: uqincd  w0
>>> +// CHECK-ENCODING: [0xe0,0xf7,0xe0,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 f7 e0 04 <unknown>
>>> +
>>> +uqincd  w0, all
>>> +// CHECK-INST: uqincd  w0
>>> +// CHECK-ENCODING: [0xe0,0xf7,0xe0,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 f7 e0 04 <unknown>
>>> +
>>> +uqincd  w0, all, mul #1
>>> +// CHECK-INST: uqincd  w0
>>> +// CHECK-ENCODING: [0xe0,0xf7,0xe0,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 f7 e0 04 <unknown>
>>> +
>>> +uqincd  w0, all, mul #16
>>> +// CHECK-INST: uqincd  w0, all, mul #16
>>> +// CHECK-ENCODING: [0xe0,0xf7,0xef,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 f7 ef 04 <unknown>
>>> +
>>> +uqincd  w0, pow2
>>> +// CHECK-INST: uqincd  w0, pow2
>>> +// CHECK-ENCODING: [0x00,0xf4,0xe0,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: 00 f4 e0 04 <unknown>
>>> +
>>> +uqincd  w0, pow2, mul #16
>>> +// CHECK-INST: uqincd  w0, pow2, mul #16
>>> +// CHECK-ENCODING: [0x00,0xf4,0xef,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: 00 f4 ef 04 <unknown>
>>> +
>>> +
>>> +// ------------------------------------------------------------
>>> ---------------//
>>>  // Test all patterns for 64-bit form
>>>  // ------------------------------------------------------------
>>> ---------------//
>>>
>>>
>>> Modified: llvm/trunk/test/MC/AArch64/SVE/uqinch-diagnostics.s
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/
>>> AArch64/SVE/uqinch-diagnostics.s?rev=334980&r1=
>>> 334979&r2=334980&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/test/MC/AArch64/SVE/uqinch-diagnostics.s (original)
>>> +++ llvm/trunk/test/MC/AArch64/SVE/uqinch-diagnostics.s Mon Jun 18
>>> 13:50:33 2018
>>> @@ -3,11 +3,6 @@
>>>  // -------------------------------------------------------------------------
>>> //
>>>  // Invalid result register
>>>
>>> -uqinch w0
>>> -// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand
>>> -// CHECK-NEXT: uqinch w0
>>> -// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> -
>>>  uqinch wsp
>>>  // CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand
>>>  // CHECK-NEXT: uqinch wsp
>>> @@ -19,6 +14,25 @@ uqinch sp
>>>  // CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>>
>>>
>>> +// -------------------------------------------------------------------------
>>> //
>>> +// Operands not matching up (unsigned inc only has one register operand)
>>> +
>>> +uqinch x0, w0
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pattern
>>> +// CHECK-NEXT: uqinch x0, w0
>>> +// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> +
>>> +uqinch w0, w0
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pattern
>>> +// CHECK-NEXT: uqinch w0, w0
>>> +// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> +
>>> +uqinch x0, x0
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pattern
>>> +// CHECK-NEXT: uqinch x0, x0
>>> +// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> +
>>> +
>>>  // -------------------------------------------------------------------------
>>> //
>>>  // Immediate not compatible with encode/decode function.
>>>
>>>
>>> Modified: llvm/trunk/test/MC/AArch64/SVE/uqinch.s
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/
>>> AArch64/SVE/uqinch.s?rev=334980&r1=334979&r2=334980&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/test/MC/AArch64/SVE/uqinch.s (original)
>>> +++ llvm/trunk/test/MC/AArch64/SVE/uqinch.s Mon Jun 18 13:50:33 2018
>>> @@ -37,6 +37,47 @@ uqinch  x0, all, mul #16
>>>
>>>
>>>  // ------------------------------------------------------------
>>> ---------------//
>>> +// Test 32-bit form (w0) and its aliases
>>> +// ------------------------------------------------------------
>>> ---------------//
>>> +
>>> +uqinch  w0
>>> +// CHECK-INST: uqinch  w0
>>> +// CHECK-ENCODING: [0xe0,0xf7,0x60,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 f7 60 04 <unknown>
>>> +
>>> +uqinch  w0, all
>>> +// CHECK-INST: uqinch  w0
>>> +// CHECK-ENCODING: [0xe0,0xf7,0x60,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 f7 60 04 <unknown>
>>> +
>>> +uqinch  w0, all, mul #1
>>> +// CHECK-INST: uqinch  w0
>>> +// CHECK-ENCODING: [0xe0,0xf7,0x60,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 f7 60 04 <unknown>
>>> +
>>> +uqinch  w0, all, mul #16
>>> +// CHECK-INST: uqinch  w0, all, mul #16
>>> +// CHECK-ENCODING: [0xe0,0xf7,0x6f,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: e0 f7 6f 04 <unknown>
>>> +
>>> +uqinch  w0, pow2
>>> +// CHECK-INST: uqinch  w0, pow2
>>> +// CHECK-ENCODING: [0x00,0xf4,0x60,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: 00 f4 60 04 <unknown>
>>> +
>>> +uqinch  w0, pow2, mul #16
>>> +// CHECK-INST: uqinch  w0, pow2, mul #16
>>> +// CHECK-ENCODING: [0x00,0xf4,0x6f,0x04]
>>> +// CHECK-ERROR: instruction requires: sve
>>> +// CHECK-UNKNOWN: 00 f4 6f 04 <unknown>
>>> +
>>> +
>>> +// ------------------------------------------------------------
>>> ---------------//
>>>  // Test all patterns for 64-bit form
>>>  // ------------------------------------------------------------
>>> ---------------//
>>>
>>>
>>> Modified: llvm/trunk/test/MC/AArch64/SVE/uqincw-diagnostics.s
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/
>>> AArch64/SVE/uqincw-diagnostics.s?rev=334980&r1=
>>> 334979&r2=334980&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/test/MC/AArch64/SVE/uqincw-diagnostics.s (original)
>>> +++ llvm/trunk/test/MC/AArch64/SVE/uqincw-diagnostics.s Mon Jun 18
>>> 13:50:33 2018
>>> @@ -3,11 +3,6 @@
>>>  // -------------------------------------------------------------------------
>>> //
>>>  // Invalid result register
>>>
>>> -uqincw w0
>>> -// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand
>>> -// CHECK-NEXT: uqincw w0
>>> -// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> -
>>>  uqincw wsp
>>>  // CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand
>>>  // CHECK-NEXT: uqincw wsp
>>> @@ -19,6 +14,25 @@ uqincw sp
>>>  // CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>>
>>>
>>> +// -------------------------------------------------------------------------
>>> //
>>> +// Operands not matching up (unsigned inc only has one register operand)
>>> +
>>> +uqincw x0, w0
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pattern
>>> +// CHECK-NEXT: uqincw x0, w0
>>> +// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
>>> +
>>> +uqincw w0, w0
>>> +// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pa
>>
>>
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