[JitDiff X64] MihaZupan/runtime/fastmod-jit

[MihuBot]

Job completed in 6 minutes 32 seconds (remote runner delay: 0 seconds).
https://github.com/MihaZupan/runtime/tree/fastmod-jit

Main commit: dotnet/runtime@a0dcd39
PR commit: MihaZupan/runtime@fe8e3f4

Diffs

Diffs

Found 98 files with textual diffs.

Summary of Code Size diffs:
(Lower is better)

Total bytes of base: 46548546
Total bytes of diff: 46549321
Total bytes of delta: 775 (0.00 % of base)
Total relative delta: 3.25
    diff is a regression.
    relative diff is a regression.


Top file regressions (bytes):
         490 : System.Private.CoreLib.dasm (0.01 % of base)
         120 : System.Private.Xml.dasm (0.00 % of base)
          46 : System.Formats.Asn1.dasm (0.05 % of base)
          36 : System.ComponentModel.TypeConverter.dasm (0.01 % of base)
          31 : System.Private.DataContractSerialization.dasm (0.00 % of base)
          23 : Microsoft.VisualBasic.Core.dasm (0.00 % of base)
          17 : System.Data.Odbc.dasm (0.01 % of base)
          13 : System.Text.Json.dasm (0.00 % of base)
          12 : System.Net.Mail.dasm (0.01 % of base)
           8 : System.IO.Compression.dasm (0.00 % of base)
           7 : System.Net.Requests.dasm (0.00 % of base)
           7 : System.Runtime.Numerics.dasm (0.00 % of base)
           4 : System.Security.Cryptography.dasm (0.00 % of base)

Top file improvements (bytes):
         -38 : System.IO.Hashing.dasm (-0.10 % of base)
          -1 : System.Text.Encoding.CodePages.dasm (-0.00 % of base)

15 total files with Code Size differences (2 improved, 13 regressed), 245 unchanged.

Top method regressions (bytes):
          47 (3.19 % of base) : System.Private.CoreLib.dasm - System.TimeZoneInfo:TransitionTimeToDateTime(int,System.TimeZoneInfo+TransitionTime):System.DateTime (FullOpts)
          36 (5.42 % of base) : System.Private.CoreLib.dasm - System.DateTime:.ctor(int,int,int,int,int,int,int,int):this (FullOpts) (2 methods)
          35 (0.93 % of base) : System.Formats.Asn1.dasm - System.Formats.Asn1.AsnDecoder:ParseGeneralizedTime(int,System.ReadOnlySpan`1[byte]):System.DateTimeOffset (FullOpts)
          29 (2.66 % of base) : System.ComponentModel.TypeConverter.dasm - System.ComponentModel.TimeOnlyConverter:ConvertTo(System.ComponentModel.ITypeDescriptorContext,System.Globalization.CultureInfo,System.Object,System.Type):System.Object:this (FullOpts)
          25 (1.65 % of base) : System.Private.DataContractSerialization.dasm - System.Xml.XmlConverter:TryParseDateTime(byte[],int,int,byref):bool (FullOpts)
          23 (1.48 % of base) : System.Private.Xml.dasm - System.Xml.Schema.XsdDateTime:op_Implicit(System.Xml.Schema.XsdDateTime):System.DateTime (FullOpts)
          23 (1.82 % of base) : System.Private.Xml.dasm - System.Xml.Schema.XsdDateTime:op_Implicit(System.Xml.Schema.XsdDateTime):System.DateTimeOffset (FullOpts)
          20 (3.75 % of base) : System.Private.CoreLib.dasm - System.Buffers.Text.Utf8Parser:TryCreateDateTime(int,int,int,int,int,int,int,int,byref):bool (FullOpts)
          15 (4.20 % of base) : System.Private.CoreLib.dasm - System.DateTime:TryCreate(int,int,int,int,int,int,int,byref):bool (FullOpts)
          12 (0.82 % of base) : System.Net.Mail.dasm - System.Net.Mime.MailBnfHelper:GetDateTimeString(System.DateTime,System.Text.StringBuilder):System.String (FullOpts)
          12 (2.52 % of base) : System.Private.Xml.dasm - System.Xml.BinXmlDateTime:GetFractions(System.DateTime):int (FullOpts)
          12 (2.26 % of base) : System.Private.Xml.dasm - System.Xml.BinXmlDateTime:GetFractions(System.DateTimeOffset):int (FullOpts)
          11 (6.11 % of base) : System.Private.CoreLib.dasm - System.DateTime:DateToTicks(int,int,int):ulong (FullOpts)
          10 (4.55 % of base) : System.Private.CoreLib.dasm - System.DateOnly:.ctor(int,int,int):this (FullOpts)
          10 (5.29 % of base) : System.Private.CoreLib.dasm - System.DateTime:.ctor(int,int,int):this (FullOpts)
          10 (2.51 % of base) : System.Private.CoreLib.dasm - System.DateTime:AddYears(System.DateTime,int):System.DateTime (FullOpts)
          10 (8.47 % of base) : System.Private.CoreLib.dasm - System.DateTime:DaysInMonth(int,int):int (FullOpts)
          10 (12.82 % of base) : System.Private.CoreLib.dasm - System.DateTime:IsLeapYear(int):bool (FullOpts)
          10 (2.02 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.EventSource:SendManifest(byte[]):this (FullOpts)
          10 (3.68 % of base) : System.Private.CoreLib.dasm - System.Globalization.EraInfo:.ctor(int,int,int,int,int,int,int,System.String,System.String,System.String):this (FullOpts)
          10 (5.18 % of base) : System.Private.CoreLib.dasm - System.Globalization.GregorianCalendar:GetDaysInYear(int,int):int:this (FullOpts)
          10 (5.18 % of base) : System.Private.CoreLib.dasm - System.Globalization.GregorianCalendar:IsLeapYear(int,int):bool:this (FullOpts)
           9 (0.90 % of base) : Microsoft.VisualBasic.Core.dasm - Microsoft.VisualBasic.DateAndTime:DateSerial(int,int,int):System.DateTime (FullOpts)
           9 (1.62 % of base) : System.Private.CoreLib.dasm - System.DateTimeFormat:TryFormatR[byte](System.DateTime,System.TimeSpan,System.Span`1[byte],byref):bool (FullOpts)
           9 (2.15 % of base) : System.Private.CoreLib.dasm - System.DateTimeOffset:.ctor(int,int,int,int,int,int,int,System.TimeSpan):this (FullOpts)
           9 (2.42 % of base) : System.Private.CoreLib.dasm - System.DateTimeOffset:.ctor(int,int,int,int,int,int,System.TimeSpan):this (FullOpts)
           9 (4.15 % of base) : System.Private.CoreLib.dasm - System.Globalization.EraInfo:.ctor(int,int,int,int,int,int,int):this (FullOpts)
           9 (4.81 % of base) : System.Private.CoreLib.dasm - System.Globalization.UmAlQuraCalendar+DateMapping:.ctor(int,int,int,int):this (FullOpts)
           9 (2.01 % of base) : System.Private.Xml.dasm - System.Xml.Schema.XsdDateTime+Parser:ParseDate(int):bool:this (FullOpts)
           8 (2.90 % of base) : System.Data.Odbc.dasm - System.Data.ProviderBase.DbBuffer:ReadDate(int):System.DateTime:this (FullOpts)
           8 (3.07 % of base) : System.Private.CoreLib.dasm - System.DateTime:.ctor(int,int,int,int,int,int):this (FullOpts)
           8 (1.68 % of base) : System.Private.CoreLib.dasm - System.DateTimeOffset:.ctor(int,int,int,int,int,int,int,int,System.TimeSpan):this (FullOpts)
           8 (3.92 % of base) : System.Private.CoreLib.dasm - System.Globalization.CalendricalCalculationsHelper:CenturiesFrom1900(int):double (FullOpts)
           8 (1.15 % of base) : System.Private.CoreLib.dasm - System.Globalization.EastAsianLunisolarCalendar:ToDateTime(int,int,int,int,int,int,int,int):System.DateTime:this (FullOpts)
           8 (3.38 % of base) : System.Private.CoreLib.dasm - System.Globalization.GregorianCalendar:GetDaysInMonth(int,int,int):int:this (FullOpts)
           8 (1.40 % of base) : System.Text.Json.dasm - System.Text.Json.JsonHelpers:TryCreateDateTime(System.Text.Json.JsonHelpers+DateTimeParseData,int,byref):bool (FullOpts)
           8 (1.43 % of base) : System.Private.Xml.dasm - System.Xml.BinXmlDateTime:XsdDateToDateTime(long):System.DateTime (FullOpts)
           8 (0.24 % of base) : System.Private.Xml.dasm - System.Xml.Xsl.XPathConvert+BigNumber:DblToRgbFast(double,byte[],byref,byref):bool (FullOpts)
           7 (0.36 % of base) : System.ComponentModel.TypeConverter.dasm - System.ComponentModel.DateTimeOffsetConverter:ConvertTo(System.ComponentModel.ITypeDescriptorContext,System.Globalization.CultureInfo,System.Object,System.Type):System.Object:this (FullOpts)
           7 (1.46 % of base) : System.Private.CoreLib.dasm - System.DateTime:AddMonths(System.DateTime,int):System.DateTime (FullOpts)
           7 (0.48 % of base) : System.Formats.Asn1.dasm - System.Formats.Asn1.AsnDecoder:ParseUtcTime(System.ReadOnlySpan`1[byte],int,int):System.DateTimeOffset (FullOpts)
           7 (0.71 % of base) : System.Private.CoreLib.dasm - System.Globalization.DateTimeFormatInfo:InsertHash(System.Globalization.DateTimeFormatInfo+TokenHashValue[],System.String,int,int):this (FullOpts)
           7 (1.72 % of base) : System.Private.CoreLib.dasm - System.Globalization.JapaneseCalendar:GetJapaneseEraStartDate(int,byref):bool (FullOpts)
           7 (0.49 % of base) : System.Private.CoreLib.dasm - System.Globalization.JapaneseCalendar:IcuGetJapaneseEras():System.Globalization.EraInfo[] (FullOpts)
           7 (0.42 % of base) : System.Net.Requests.dasm - System.Net.FtpControlStream:GetLastModifiedFrom213Response(System.String):System.DateTime:this (FullOpts)
           6 (1.63 % of base) : Microsoft.VisualBasic.Core.dasm - Microsoft.VisualBasic.CompilerServices.VB6File:FormatUniversalDate(System.DateTime):System.String:this (FullOpts)
           6 (2.27 % of base) : Microsoft.VisualBasic.Core.dasm - Microsoft.VisualBasic.VBMath:GetTimer():float (FullOpts)
           6 (4.65 % of base) : System.Private.CoreLib.dasm - System.Buffers.StandardFormat:Format(System.Span`1[char]):System.Span`1[char]:this (FullOpts)
           6 (1.42 % of base) : System.Data.Odbc.dasm - System.Data.Odbc.CNativeBuffer:WriteODBCDateTime(int,System.DateTime):this (FullOpts)
           6 (1.45 % of base) : System.Data.Odbc.dasm - System.Data.ProviderBase.DbBuffer:WriteDateTime(int,System.DateTime):this (FullOpts)
           6 (11.32 % of base) : System.Private.CoreLib.dasm - System.DateTime:get_Hour():int:this (FullOpts)
           6 (4.00 % of base) : System.Private.CoreLib.dasm - System.DateTime:GetTime(byref,byref,byref,byref):this (FullOpts)
           6 (5.31 % of base) : System.Private.CoreLib.dasm - System.DateTime:GetTime(byref,byref,byref):this (FullOpts)
           6 (4.80 % of base) : System.Private.CoreLib.dasm - System.DateTime:GetTimePrecise(byref,byref,byref,byref):this (FullOpts)
           6 (8.57 % of base) : System.Private.CoreLib.dasm - System.DateTimeOffset:get_Hour():int:this (FullOpts)
           6 (11.32 % of base) : System.Private.CoreLib.dasm - System.Globalization.Calendar:GetHour(System.DateTime):int:this (FullOpts)
           6 (2.44 % of base) : System.IO.Compression.dasm - System.IO.Compression.ZipHelper:DateTimeToDosTime(System.DateTime):uint (FullOpts)
           6 (1.56 % of base) : System.Runtime.Numerics.dasm - System.Number:<BigIntegerToBase1E9>g__Naive|25_1(System.ReadOnlySpan`1[nuint],System.Span`1[nuint],byref) (FullOpts)
           6 (3.92 % of base) : System.Private.CoreLib.dasm - System.TimeOnly:Deconstruct(byref,byref,byref,byref):this (FullOpts)
           6 (5.17 % of base) : System.Private.CoreLib.dasm - System.TimeOnly:Deconstruct(byref,byref,byref):this (FullOpts)
           6 (15.00 % of base) : System.Private.CoreLib.dasm - System.TimeOnly:get_Minute():int:this (FullOpts)
           6 (15.00 % of base) : System.Private.CoreLib.dasm - System.TimeOnly:get_Second():int:this (FullOpts)
           6 (2.08 % of base) : System.Private.Xml.dasm - System.Xml.BinXmlDateTime:XsdKatmaiTimeToString(byte[],int):System.String (FullOpts)
           6 (0.55 % of base) : System.Private.DataContractSerialization.dasm - System.Xml.XmlConverter:ToChars(System.DateTime,byte[],int):int (FullOpts)
           6 (0.97 % of base) : System.Private.Xml.dasm - System.Xml.Xsl.Runtime.XsltFunctions:PrintTime(char[],System.DateTime) (FullOpts)
           5 (0.99 % of base) : System.Private.CoreLib.dasm - System.DateTimeFormat:TryFormatInvariantG[byte](System.DateTime,System.TimeSpan,System.Span`1[byte],byref):bool (FullOpts)
           5 (1.50 % of base) : System.Private.CoreLib.dasm - System.DateTimeFormat:TryFormatS[byte](System.DateTime,System.Span`1[byte],byref):bool (FullOpts)
           5 (2.38 % of base) : System.Private.CoreLib.dasm - System.DateTimeFormat:TryFormatTimeOnlyR[byte](System.TimeOnly,System.Span`1[byte],byref):bool (FullOpts)
           5 (1.30 % of base) : System.Private.CoreLib.dasm - System.DateTimeFormat:TryFormatu[byte](System.DateTime,System.TimeSpan,System.Span`1[byte],byref):bool (FullOpts)
           5 (0.24 % of base) : System.Formats.Asn1.dasm - System.Formats.Asn1.AsnWriter:WriteGeneralizedTimeCore(System.Formats.Asn1.Asn1Tag,System.DateTimeOffset,bool):this (FullOpts)
           5 (1.30 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonWriter:WriteBase64StringSegmentData(System.ReadOnlySpan`1[byte],bool):this (FullOpts)
           5 (12.20 % of base) : System.Private.CoreLib.dasm - System.TimeOnly:get_Millisecond():int:this (FullOpts)
           4 (0.97 % of base) : System.Security.Cryptography.dasm - Interop+Crypto:X509StoreSetVerifyTime(Microsoft.Win32.SafeHandles.SafeX509StoreHandle,System.DateTime) (FullOpts)
           4 (3.57 % of base) : System.Private.CoreLib.dasm - System.DateTime:get_Day():int:this (FullOpts)
           4 (3.28 % of base) : System.Private.CoreLib.dasm - System.DateTime:get_Month():int:this (FullOpts)
           4 (2.48 % of base) : System.Private.CoreLib.dasm - System.Globalization.ISOWeek:GetWeeksInYear(int):int (FullOpts)
           4 (0.79 % of base) : System.Private.Xml.dasm - System.Xml.BinXmlDateTime:XsdKatmaiDateTimeOffsetToString(byte[],int):System.String (FullOpts)
           4 (0.94 % of base) : System.Private.Xml.dasm - System.Xml.BinXmlDateTime:XsdKatmaiDateTimeToString(byte[],int):System.String (FullOpts)
           4 (1.09 % of base) : System.Private.Xml.dasm - System.Xml.BinXmlDateTime:XsdKatmaiTimeOffsetToString(byte[],int):System.String (FullOpts)
           3 (3.16 % of base) : System.Private.CoreLib.dasm - System.DateOnly:get_DayOfYear():int:this (FullOpts)
           3 (3.80 % of base) : System.Private.CoreLib.dasm - System.DateTime:get_DayOfYear():int:this (FullOpts)
           3 (0.41 % of base) : System.Private.CoreLib.dasm - System.DateTimeFormat:TryFormatO[byte](System.DateTime,System.TimeSpan,System.Span`1[byte],byref):bool (FullOpts)
           3 (1.05 % of base) : System.Private.CoreLib.dasm - System.DateTimeFormat:TryFormatTimeOnlyO[byte](System.TimeOnly,System.Span`1[byte],byref):bool (FullOpts)
           3 (3.12 % of base) : System.Private.CoreLib.dasm - System.DateTimeOffset:get_DayOfYear():int:this (FullOpts)
           3 (3.80 % of base) : System.Private.CoreLib.dasm - System.Globalization.GregorianCalendar:GetDayOfYear(System.DateTime):int:this (FullOpts)
           3 (2.68 % of base) : System.Private.CoreLib.dasm - System.Globalization.GregorianCalendarHelper:GetDayOfYear(System.DateTime):int:this (FullOpts)
           3 (2.59 % of base) : System.Private.CoreLib.dasm - System.Globalization.JapaneseCalendar:GetDayOfYear(System.DateTime):int:this (FullOpts)
           3 (2.59 % of base) : System.Private.CoreLib.dasm - System.Globalization.KoreanCalendar:GetDayOfYear(System.DateTime):int:this (FullOpts)
           3 (2.59 % of base) : System.Private.CoreLib.dasm - System.Globalization.TaiwanCalendar:GetDayOfYear(System.DateTime):int:this (FullOpts)
           3 (2.59 % of base) : System.Private.CoreLib.dasm - System.Globalization.ThaiBuddhistCalendar:GetDayOfYear(System.DateTime):int:this (FullOpts)
           3 (0.24 % of base) : System.Runtime.Numerics.dasm - System.Number:NumberToBigInteger(byref,byref):int (FullOpts)
           3 (1.36 % of base) : System.Private.CoreLib.dasm - System.TimeOnly:Deconstruct(byref,byref,byref,byref,byref):this (FullOpts)
           2 (0.56 % of base) : Microsoft.VisualBasic.Core.dasm - Microsoft.VisualBasic.DateAndTime:GetDayOfWeek(System.DateTime,int):int (FullOpts)
           2 (0.19 % of base) : System.Private.CoreLib.dasm - System.Buffers.Text.Utf8Parser:TryParseDateTimeOffsetR(System.ReadOnlySpan`1[byte],uint,byref,byref):bool (FullOpts)
           2 (7.41 % of base) : System.Private.CoreLib.dasm - System.DateOnly:get_DayOfWeek():int:this (FullOpts)
           2 (3.51 % of base) : System.Private.CoreLib.dasm - System.DateTime:get_DayOfWeek():int:this (FullOpts)
           2 (0.56 % of base) : System.Private.CoreLib.dasm - System.DateTimeFormat:TryFormatDateOnlyR[byte](System.DateOnly,System.Span`1[byte],byref):bool (FullOpts)
           2 (2.70 % of base) : System.Private.CoreLib.dasm - System.DateTimeOffset:get_DayOfWeek():int:this (FullOpts)
           2 (2.70 % of base) : System.Private.CoreLib.dasm - System.Globalization.EastAsianLunisolarCalendar:GetDayOfWeek(System.DateTime):int:this (FullOpts)
           2 (3.51 % of base) : System.Private.CoreLib.dasm - System.Globalization.GregorianCalendar:GetDayOfWeek(System.DateTime):int:this (FullOpts)

Top method improvements (bytes):
         -10 (-1.63 % of base) : System.Private.CoreLib.dasm - System.DateTime:.ctor(int,int,int,int,int,int,int):this (FullOpts) (2 methods)
         -10 (-2.87 % of base) : System.IO.Hashing.dasm - System.IO.Hashing.Adler32:UpdateVector128(uint,System.ReadOnlySpan`1[byte]):uint (FullOpts)
         -10 (-3.08 % of base) : System.IO.Hashing.dasm - System.IO.Hashing.Adler32:UpdateVector256(uint,System.ReadOnlySpan`1[byte]):uint (FullOpts)
         -10 (-2.17 % of base) : System.IO.Hashing.dasm - System.IO.Hashing.Adler32:UpdateVector512(uint,System.ReadOnlySpan`1[byte]):uint (FullOpts)
          -6 (-4.14 % of base) : System.IO.Hashing.dasm - System.IO.Hashing.Adler32:UpdateScalar(uint,System.ReadOnlySpan`1[byte]):uint (FullOpts)
          -4 (-5.26 % of base) : System.Private.CoreLib.dasm - System.TimeOnly:Deconstruct(byref,byref):this (FullOpts)
          -3 (-0.61 % of base) : System.Data.Odbc.dasm - System.Data.ProviderBase.DbBuffer:ReadDateTime(int):System.DateTime:this (FullOpts)
          -3 (-1.13 % of base) : System.Private.CoreLib.dasm - System.Globalization.EastAsianLunisolarCalendar:LunarToTime(System.DateTime,int,int,int):System.DateTime:this (FullOpts)
          -2 (-0.52 % of base) : System.Private.CoreLib.dasm - System.DateTime:.ctor(int,int,int,int,int,int,int,int,int):this (FullOpts)
          -2 (-2.33 % of base) : System.IO.Hashing.dasm - System.IO.Hashing.Adler32:UpdateScalarTail(byref,int,byref,byref) (FullOpts)
          -2 (-1.20 % of base) : System.Runtime.Numerics.dasm - System.Number:<BigIntegerToBase1E9>g__NaiveDigit|25_2(uint,System.Span`1[nuint],byref) (FullOpts)
          -1 (-0.07 % of base) : System.Formats.Asn1.dasm - System.Formats.Asn1.AsnWriter:WriteUtcTimeCore(System.Formats.Asn1.Asn1Tag,System.DateTimeOffset):this (FullOpts)
          -1 (-0.23 % of base) : System.Private.CoreLib.dasm - System.Globalization.GregorianCalendar:ToDateTime(int,int,int,int,int,int,int,int):System.DateTime:this (FullOpts)
          -1 (-0.04 % of base) : System.Text.Encoding.CodePages.dasm - System.Text.GB18030Encoding:GetBytes(ptr,int,ptr,int,System.Text.EncoderNLS):int:this (FullOpts)
          -1 (-0.26 % of base) : System.Private.Xml.dasm - System.Xml.BinXmlDateTime:XsdDateTimeToDateTime(long):System.DateTime (FullOpts)

Top method regressions (percentages):
           6 (15.00 % of base) : System.Private.CoreLib.dasm - System.TimeOnly:get_Minute():int:this (FullOpts)
           6 (15.00 % of base) : System.Private.CoreLib.dasm - System.TimeOnly:get_Second():int:this (FullOpts)
          10 (12.82 % of base) : System.Private.CoreLib.dasm - System.DateTime:IsLeapYear(int):bool (FullOpts)
           5 (12.20 % of base) : System.Private.CoreLib.dasm - System.TimeOnly:get_Millisecond():int:this (FullOpts)
           6 (11.32 % of base) : System.Private.CoreLib.dasm - System.DateTime:get_Hour():int:this (FullOpts)
           6 (11.32 % of base) : System.Private.CoreLib.dasm - System.Globalization.Calendar:GetHour(System.DateTime):int:this (FullOpts)
           6 (8.57 % of base) : System.Private.CoreLib.dasm - System.DateTimeOffset:get_Hour():int:this (FullOpts)
          10 (8.47 % of base) : System.Private.CoreLib.dasm - System.DateTime:DaysInMonth(int,int):int (FullOpts)
           2 (7.41 % of base) : System.Private.CoreLib.dasm - System.DateOnly:get_DayOfWeek():int:this (FullOpts)
          11 (6.11 % of base) : System.Private.CoreLib.dasm - System.DateTime:DateToTicks(int,int,int):ulong (FullOpts)
          36 (5.42 % of base) : System.Private.CoreLib.dasm - System.DateTime:.ctor(int,int,int,int,int,int,int,int):this (FullOpts) (2 methods)
           6 (5.31 % of base) : System.Private.CoreLib.dasm - System.DateTime:GetTime(byref,byref,byref):this (FullOpts)
          10 (5.29 % of base) : System.Private.CoreLib.dasm - System.DateTime:.ctor(int,int,int):this (FullOpts)
          10 (5.18 % of base) : System.Private.CoreLib.dasm - System.Globalization.GregorianCalendar:GetDaysInYear(int,int):int:this (FullOpts)
          10 (5.18 % of base) : System.Private.CoreLib.dasm - System.Globalization.GregorianCalendar:IsLeapYear(int,int):bool:this (FullOpts)
           6 (5.17 % of base) : System.Private.CoreLib.dasm - System.TimeOnly:Deconstruct(byref,byref,byref):this (FullOpts)
           9 (4.81 % of base) : System.Private.CoreLib.dasm - System.Globalization.UmAlQuraCalendar+DateMapping:.ctor(int,int,int,int):this (FullOpts)
           6 (4.80 % of base) : System.Private.CoreLib.dasm - System.DateTime:GetTimePrecise(byref,byref,byref,byref):this (FullOpts)
           6 (4.65 % of base) : System.Private.CoreLib.dasm - System.Buffers.StandardFormat:Format(System.Span`1[char]):System.Span`1[char]:this (FullOpts)
          10 (4.55 % of base) : System.Private.CoreLib.dasm - System.DateOnly:.ctor(int,int,int):this (FullOpts)
          15 (4.20 % of base) : System.Private.CoreLib.dasm - System.DateTime:TryCreate(int,int,int,int,int,int,int,byref):bool (FullOpts)
           9 (4.15 % of base) : System.Private.CoreLib.dasm - System.Globalization.EraInfo:.ctor(int,int,int,int,int,int,int):this (FullOpts)
           6 (4.00 % of base) : System.Private.CoreLib.dasm - System.DateTime:GetTime(byref,byref,byref,byref):this (FullOpts)
           8 (3.92 % of base) : System.Private.CoreLib.dasm - System.Globalization.CalendricalCalculationsHelper:CenturiesFrom1900(int):double (FullOpts)
           6 (3.92 % of base) : System.Private.CoreLib.dasm - System.TimeOnly:Deconstruct(byref,byref,byref,byref):this (FullOpts)
           2 (3.85 % of base) : System.Private.CoreLib.dasm - System.Globalization.ISOWeek:<GetWeeksInYear>g__P|10_0(uint):uint (FullOpts)
           3 (3.80 % of base) : System.Private.CoreLib.dasm - System.DateTime:get_DayOfYear():int:this (FullOpts)
           3 (3.80 % of base) : System.Private.CoreLib.dasm - System.Globalization.GregorianCalendar:GetDayOfYear(System.DateTime):int:this (FullOpts)
          20 (3.75 % of base) : System.Private.CoreLib.dasm - System.Buffers.Text.Utf8Parser:TryCreateDateTime(int,int,int,int,int,int,int,int,byref):bool (FullOpts)
          10 (3.68 % of base) : System.Private.CoreLib.dasm - System.Globalization.EraInfo:.ctor(int,int,int,int,int,int,int,System.String,System.String,System.String):this (FullOpts)
           4 (3.57 % of base) : System.Private.CoreLib.dasm - System.DateTime:get_Day():int:this (FullOpts)
           2 (3.51 % of base) : System.Private.CoreLib.dasm - System.DateTime:get_DayOfWeek():int:this (FullOpts)
           2 (3.51 % of base) : System.Private.CoreLib.dasm - System.Globalization.GregorianCalendar:GetDayOfWeek(System.DateTime):int:this (FullOpts)
           2 (3.51 % of base) : System.Private.CoreLib.dasm - System.Globalization.HebrewCalendar:GetDayOfWeek(System.DateTime):int:this (FullOpts)
           2 (3.51 % of base) : System.Private.CoreLib.dasm - System.Globalization.HijriCalendar:GetDayOfWeek(System.DateTime):int:this (FullOpts)
           2 (3.51 % of base) : System.Private.CoreLib.dasm - System.Globalization.JulianCalendar:GetDayOfWeek(System.DateTime):int:this (FullOpts)
           2 (3.51 % of base) : System.Private.CoreLib.dasm - System.Globalization.PersianCalendar:GetDayOfWeek(System.DateTime):int:this (FullOpts)
           2 (3.51 % of base) : System.Private.CoreLib.dasm - System.Globalization.UmAlQuraCalendar:GetDayOfWeek(System.DateTime):int:this (FullOpts)
           8 (3.38 % of base) : System.Private.CoreLib.dasm - System.Globalization.GregorianCalendar:GetDaysInMonth(int,int,int):int:this (FullOpts)
           4 (3.28 % of base) : System.Private.CoreLib.dasm - System.DateTime:get_Month():int:this (FullOpts)
          47 (3.19 % of base) : System.Private.CoreLib.dasm - System.TimeZoneInfo:TransitionTimeToDateTime(int,System.TimeZoneInfo+TransitionTime):System.DateTime (FullOpts)
           3 (3.16 % of base) : System.Private.CoreLib.dasm - System.DateOnly:get_DayOfYear():int:this (FullOpts)
           3 (3.12 % of base) : System.Private.CoreLib.dasm - System.DateTimeOffset:get_DayOfYear():int:this (FullOpts)
           8 (3.07 % of base) : System.Private.CoreLib.dasm - System.DateTime:.ctor(int,int,int,int,int,int):this (FullOpts)
           8 (2.90 % of base) : System.Data.Odbc.dasm - System.Data.ProviderBase.DbBuffer:ReadDate(int):System.DateTime:this (FullOpts)
           2 (2.70 % of base) : System.Private.CoreLib.dasm - System.DateTimeOffset:get_DayOfWeek():int:this (FullOpts)
           2 (2.70 % of base) : System.Private.CoreLib.dasm - System.Globalization.EastAsianLunisolarCalendar:GetDayOfWeek(System.DateTime):int:this (FullOpts)
           3 (2.68 % of base) : System.Private.CoreLib.dasm - System.Globalization.GregorianCalendarHelper:GetDayOfYear(System.DateTime):int:this (FullOpts)
          29 (2.66 % of base) : System.ComponentModel.TypeConverter.dasm - System.ComponentModel.TimeOnlyConverter:ConvertTo(System.ComponentModel.ITypeDescriptorContext,System.Globalization.CultureInfo,System.Object,System.Type):System.Object:this (FullOpts)
           3 (2.59 % of base) : System.Private.CoreLib.dasm - System.Globalization.JapaneseCalendar:GetDayOfYear(System.DateTime):int:this (FullOpts)
           3 (2.59 % of base) : System.Private.CoreLib.dasm - System.Globalization.KoreanCalendar:GetDayOfYear(System.DateTime):int:this (FullOpts)
           3 (2.59 % of base) : System.Private.CoreLib.dasm - System.Globalization.TaiwanCalendar:GetDayOfYear(System.DateTime):int:this (FullOpts)
           3 (2.59 % of base) : System.Private.CoreLib.dasm - System.Globalization.ThaiBuddhistCalendar:GetDayOfYear(System.DateTime):int:this (FullOpts)
          12 (2.52 % of base) : System.Private.Xml.dasm - System.Xml.BinXmlDateTime:GetFractions(System.DateTime):int (FullOpts)
          10 (2.51 % of base) : System.Private.CoreLib.dasm - System.DateTime:AddYears(System.DateTime,int):System.DateTime (FullOpts)
           4 (2.48 % of base) : System.Private.CoreLib.dasm - System.Globalization.ISOWeek:GetWeeksInYear(int):int (FullOpts)
           6 (2.44 % of base) : System.IO.Compression.dasm - System.IO.Compression.ZipHelper:DateTimeToDosTime(System.DateTime):uint (FullOpts)
           9 (2.42 % of base) : System.Private.CoreLib.dasm - System.DateTimeOffset:.ctor(int,int,int,int,int,int,System.TimeSpan):this (FullOpts)
           5 (2.38 % of base) : System.Private.CoreLib.dasm - System.DateTimeFormat:TryFormatTimeOnlyR[byte](System.TimeOnly,System.Span`1[byte],byref):bool (FullOpts)
           6 (2.27 % of base) : Microsoft.VisualBasic.Core.dasm - Microsoft.VisualBasic.VBMath:GetTimer():float (FullOpts)
          12 (2.26 % of base) : System.Private.Xml.dasm - System.Xml.BinXmlDateTime:GetFractions(System.DateTimeOffset):int (FullOpts)
           2 (2.22 % of base) : System.Private.CoreLib.dasm - System.Globalization.GregorianCalendarHelper:GetDayOfWeek(System.DateTime):int:this (FullOpts)
           9 (2.15 % of base) : System.Private.CoreLib.dasm - System.DateTimeOffset:.ctor(int,int,int,int,int,int,int,System.TimeSpan):this (FullOpts)
           2 (2.13 % of base) : System.Private.CoreLib.dasm - System.Globalization.JapaneseCalendar:GetDayOfWeek(System.DateTime):int:this (FullOpts)
           2 (2.13 % of base) : System.Private.CoreLib.dasm - System.Globalization.KoreanCalendar:GetDayOfWeek(System.DateTime):int:this (FullOpts)
           2 (2.13 % of base) : System.Private.CoreLib.dasm - System.Globalization.TaiwanCalendar:GetDayOfWeek(System.DateTime):int:this (FullOpts)
           2 (2.13 % of base) : System.Private.CoreLib.dasm - System.Globalization.ThaiBuddhistCalendar:GetDayOfWeek(System.DateTime):int:this (FullOpts)
           6 (2.08 % of base) : System.Private.Xml.dasm - System.Xml.BinXmlDateTime:XsdKatmaiTimeToString(byte[],int):System.String (FullOpts)
          10 (2.02 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.EventSource:SendManifest(byte[]):this (FullOpts)
           9 (2.01 % of base) : System.Private.Xml.dasm - System.Xml.Schema.XsdDateTime+Parser:ParseDate(int):bool:this (FullOpts)
          23 (1.82 % of base) : System.Private.Xml.dasm - System.Xml.Schema.XsdDateTime:op_Implicit(System.Xml.Schema.XsdDateTime):System.DateTimeOffset (FullOpts)
           7 (1.72 % of base) : System.Private.CoreLib.dasm - System.Globalization.JapaneseCalendar:GetJapaneseEraStartDate(int,byref):bool (FullOpts)
           8 (1.68 % of base) : System.Private.CoreLib.dasm - System.DateTimeOffset:.ctor(int,int,int,int,int,int,int,int,System.TimeSpan):this (FullOpts)
          25 (1.65 % of base) : System.Private.DataContractSerialization.dasm - System.Xml.XmlConverter:TryParseDateTime(byte[],int,int,byref):bool (FullOpts)
           6 (1.63 % of base) : Microsoft.VisualBasic.Core.dasm - Microsoft.VisualBasic.CompilerServices.VB6File:FormatUniversalDate(System.DateTime):System.String:this (FullOpts)
           9 (1.62 % of base) : System.Private.CoreLib.dasm - System.DateTimeFormat:TryFormatR[byte](System.DateTime,System.TimeSpan,System.Span`1[byte],byref):bool (FullOpts)
           6 (1.56 % of base) : System.Runtime.Numerics.dasm - System.Number:<BigIntegerToBase1E9>g__Naive|25_1(System.ReadOnlySpan`1[nuint],System.Span`1[nuint],byref) (FullOpts)
           5 (1.50 % of base) : System.Private.CoreLib.dasm - System.DateTimeFormat:TryFormatS[byte](System.DateTime,System.Span`1[byte],byref):bool (FullOpts)
          23 (1.48 % of base) : System.Private.Xml.dasm - System.Xml.Schema.XsdDateTime:op_Implicit(System.Xml.Schema.XsdDateTime):System.DateTime (FullOpts)
           7 (1.46 % of base) : System.Private.CoreLib.dasm - System.DateTime:AddMonths(System.DateTime,int):System.DateTime (FullOpts)
           6 (1.45 % of base) : System.Data.Odbc.dasm - System.Data.ProviderBase.DbBuffer:WriteDateTime(int,System.DateTime):this (FullOpts)
           8 (1.43 % of base) : System.Private.Xml.dasm - System.Xml.BinXmlDateTime:XsdDateToDateTime(long):System.DateTime (FullOpts)
           6 (1.42 % of base) : System.Data.Odbc.dasm - System.Data.Odbc.CNativeBuffer:WriteODBCDateTime(int,System.DateTime):this (FullOpts)
           8 (1.40 % of base) : System.Text.Json.dasm - System.Text.Json.JsonHelpers:TryCreateDateTime(System.Text.Json.JsonHelpers+DateTimeParseData,int,byref):bool (FullOpts)
           3 (1.36 % of base) : System.Private.CoreLib.dasm - System.TimeOnly:Deconstruct(byref,byref,byref,byref,byref):this (FullOpts)
           5 (1.30 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonWriter:WriteBase64StringSegmentData(System.ReadOnlySpan`1[byte],bool):this (FullOpts)
           5 (1.30 % of base) : System.Private.CoreLib.dasm - System.DateTimeFormat:TryFormatu[byte](System.DateTime,System.TimeSpan,System.Span`1[byte],byref):bool (FullOpts)
           8 (1.15 % of base) : System.Private.CoreLib.dasm - System.Globalization.EastAsianLunisolarCalendar:ToDateTime(int,int,int,int,int,int,int,int):System.DateTime:this (FullOpts)
           4 (1.09 % of base) : System.Private.Xml.dasm - System.Xml.BinXmlDateTime:XsdKatmaiTimeOffsetToString(byte[],int):System.String (FullOpts)
           3 (1.05 % of base) : System.Private.CoreLib.dasm - System.DateTimeFormat:TryFormatTimeOnlyO[byte](System.TimeOnly,System.Span`1[byte],byref):bool (FullOpts)
           5 (0.99 % of base) : System.Private.CoreLib.dasm - System.DateTimeFormat:TryFormatInvariantG[byte](System.DateTime,System.TimeSpan,System.Span`1[byte],byref):bool (FullOpts)
           6 (0.97 % of base) : System.Private.Xml.dasm - System.Xml.Xsl.Runtime.XsltFunctions:PrintTime(char[],System.DateTime) (FullOpts)
           4 (0.97 % of base) : System.Security.Cryptography.dasm - Interop+Crypto:X509StoreSetVerifyTime(Microsoft.Win32.SafeHandles.SafeX509StoreHandle,System.DateTime) (FullOpts)
           4 (0.94 % of base) : System.Private.Xml.dasm - System.Xml.BinXmlDateTime:XsdKatmaiDateTimeToString(byte[],int):System.String (FullOpts)
          35 (0.93 % of base) : System.Formats.Asn1.dasm - System.Formats.Asn1.AsnDecoder:ParseGeneralizedTime(int,System.ReadOnlySpan`1[byte]):System.DateTimeOffset (FullOpts)
           9 (0.90 % of base) : Microsoft.VisualBasic.Core.dasm - Microsoft.VisualBasic.DateAndTime:DateSerial(int,int,int):System.DateTime (FullOpts)
          12 (0.82 % of base) : System.Net.Mail.dasm - System.Net.Mime.MailBnfHelper:GetDateTimeString(System.DateTime,System.Text.StringBuilder):System.String (FullOpts)
           4 (0.79 % of base) : System.Private.Xml.dasm - System.Xml.BinXmlDateTime:XsdKatmaiDateTimeOffsetToString(byte[],int):System.String (FullOpts)
           7 (0.71 % of base) : System.Private.CoreLib.dasm - System.Globalization.DateTimeFormatInfo:InsertHash(System.Globalization.DateTimeFormatInfo+TokenHashValue[],System.String,int,int):this (FullOpts)
           2 (0.56 % of base) : System.Private.CoreLib.dasm - System.DateTimeFormat:TryFormatDateOnlyR[byte](System.DateOnly,System.Span`1[byte],byref):bool (FullOpts)

Top method improvements (percentages):
          -4 (-5.26 % of base) : System.Private.CoreLib.dasm - System.TimeOnly:Deconstruct(byref,byref):this (FullOpts)
          -6 (-4.14 % of base) : System.IO.Hashing.dasm - System.IO.Hashing.Adler32:UpdateScalar(uint,System.ReadOnlySpan`1[byte]):uint (FullOpts)
         -10 (-3.08 % of base) : System.IO.Hashing.dasm - System.IO.Hashing.Adler32:UpdateVector256(uint,System.ReadOnlySpan`1[byte]):uint (FullOpts)
         -10 (-2.87 % of base) : System.IO.Hashing.dasm - System.IO.Hashing.Adler32:UpdateVector128(uint,System.ReadOnlySpan`1[byte]):uint (FullOpts)
          -2 (-2.33 % of base) : System.IO.Hashing.dasm - System.IO.Hashing.Adler32:UpdateScalarTail(byref,int,byref,byref) (FullOpts)
         -10 (-2.17 % of base) : System.IO.Hashing.dasm - System.IO.Hashing.Adler32:UpdateVector512(uint,System.ReadOnlySpan`1[byte]):uint (FullOpts)
         -10 (-1.63 % of base) : System.Private.CoreLib.dasm - System.DateTime:.ctor(int,int,int,int,int,int,int):this (FullOpts) (2 methods)
          -2 (-1.20 % of base) : System.Runtime.Numerics.dasm - System.Number:<BigIntegerToBase1E9>g__NaiveDigit|25_2(uint,System.Span`1[nuint],byref) (FullOpts)
          -3 (-1.13 % of base) : System.Private.CoreLib.dasm - System.Globalization.EastAsianLunisolarCalendar:LunarToTime(System.DateTime,int,int,int):System.DateTime:this (FullOpts)
          -3 (-0.61 % of base) : System.Data.Odbc.dasm - System.Data.ProviderBase.DbBuffer:ReadDateTime(int):System.DateTime:this (FullOpts)
          -2 (-0.52 % of base) : System.Private.CoreLib.dasm - System.DateTime:.ctor(int,int,int,int,int,int,int,int,int):this (FullOpts)
          -1 (-0.26 % of base) : System.Private.Xml.dasm - System.Xml.BinXmlDateTime:XsdDateTimeToDateTime(long):System.DateTime (FullOpts)
          -1 (-0.23 % of base) : System.Private.CoreLib.dasm - System.Globalization.GregorianCalendar:ToDateTime(int,int,int,int,int,int,int,int):System.DateTime:this (FullOpts)
          -1 (-0.07 % of base) : System.Formats.Asn1.dasm - System.Formats.Asn1.AsnWriter:WriteUtcTimeCore(System.Formats.Asn1.Asn1Tag,System.DateTimeOffset):this (FullOpts)
          -1 (-0.04 % of base) : System.Text.Encoding.CodePages.dasm - System.Text.GB18030Encoding:GetBytes(ptr,int,ptr,int,System.Text.EncoderNLS):int:this (FullOpts)

130 total methods with Code Size differences (15 improved, 115 regressed), 288344 unchanged.

--------------------------------------------------------------------------------

Artifacts:

• diff-frameworks.txt (34 KB)
• ShortDiffsRegressions.md (58 KB)
• LongDiffsRegressions.md (377 KB)
• ShortDiffsImprovements.md (60 KB)
• LongDiffsImprovements.md (235 KB)
• jit-diffs-pr.zip (159 MB)
• jit-diffs-main.zip (159 MB)

[MihuBot]

Top method regressions

36 (5.42 % of base) - System.DateTime:.ctor(int,int,int,int,int,int,int,int):this

 ; Assembly listing for method System.DateTime:.ctor(int,int,int,int,int,int,int,int):this (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
 ; rbp based frame
 ; partially interruptible
 ; No PGO data
 ; 0 inlinees with PGO data; 3 single block inlinees; 4 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 this         [V00,T01] (  5,  5   )   byref  ->  rdi         this single-def
-;  V01 arg1         [V01,T00] (  8,  6.50)     int  ->  rsi         single-def
-;  V02 arg2         [V02,T02] (  5,  5   )     int  ->  rdx         single-def
+;  V01 arg1         [V01,T00] (  7,  6   )     int  ->  rsi         single-def
+;  V02 arg2         [V02,T02] (  5,  5   )     int  ->  rax         single-def
 ;  V03 arg3         [V03,T03] (  5,  5   )     int  ->  rcx         single-def
 ;  V04 arg4         [V04,T04] (  4,  4   )     int  ->   r8         single-def
 ;  V05 arg5         [V05,T05] (  4,  4   )     int  ->   r9         single-def
-;  V06 arg6         [V06,T10] (  2,  2   )     int  ->  rax         single-def
-;  V07 arg7         [V07,T11] (  2,  2   )     int  ->  r10         single-def
-;  V08 arg8         [V08,T12] (  2,  2   )     int  ->  r11         single-def
+;  V06 arg6         [V06,T10] (  2,  2   )     int  ->  r10         single-def
+;  V07 arg7         [V07,T11] (  2,  2   )     int  ->  r11         single-def
+;  V08 arg8         [V08,T12] (  2,  2   )     int  ->  rbx         single-def
 ;# V09 OutArgs      [V09    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
-;  V10 tmp1         [V10,T13] (  2,  2   )    long  ->  rcx         "Inline stloc first use temp"
+;  V10 tmp1         [V10,T13] (  2,  2   )    long  ->  rax         "Inline stloc first use temp"
 ;* V11 tmp2         [V11    ] (  0,  0   )  struct (16) zero-ref    <System.ReadOnlySpan`1[uint]>
 ;* V12 tmp3         [V12    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "Inline stloc first use temp" <System.ReadOnlySpan`1[uint]>
 ;* V13 tmp4         [V13    ] (  0,  0   )   ubyte  ->  zero-ref    "Inline return value spill temp"
 ;* V14 tmp5         [V14    ] (  0,  0   )  struct (16) zero-ref    "ReadOnlySpan<T> for CreateSpan<T>" <System.ReadOnlySpan`1[uint]>
 ;* V15 tmp6         [V15    ] (  0,  0   )  struct (16) zero-ref    "ReadOnlySpan<T> for CreateSpan<T>" <System.ReadOnlySpan`1[uint]>
 ;  V16 tmp7         [V16,T06] (  3,  6   )     int  ->  rsi         "dup spill"
-;  V17 tmp8         [V17,T08] (  3,  3   )     int  ->  rbx         "Inline stloc first use temp"
-;  V18 tmp9         [V18,T07] (  4,  3   )   byref  ->  rbx         "field V11._reference (fldOffset=0x0)" P-INDEP
+;  V17 tmp8         [V17,T08] (  3,  3   )     int  ->  rdx         "Inline stloc first use temp"
+;  V18 tmp9         [V18,T07] (  4,  3   )   byref  ->  rdx         "field V11._reference (fldOffset=0x0)" P-INDEP
 ;* V19 tmp10        [V19    ] (  0,  0   )     int  ->  zero-ref    "field V11._length (fldOffset=0x8)" P-INDEP
 ;* V20 tmp11        [V20    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V12._reference (fldOffset=0x0)" P-INDEP
 ;* V21 tmp12        [V21    ] (  0,  0   )     int  ->  zero-ref    "field V12._length (fldOffset=0x8)" P-INDEP
 ;* V22 tmp13        [V22    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V14._reference (fldOffset=0x0)" P-INDEP
 ;* V23 tmp14        [V23    ] (  0,  0   )     int  ->  zero-ref    "field V14._length (fldOffset=0x8)" P-INDEP
 ;* V24 tmp15        [V24    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V15._reference (fldOffset=0x0)" P-INDEP
 ;* V25 tmp16        [V25    ] (  0,  0   )     int  ->  zero-ref    "field V15._length (fldOffset=0x8)" P-INDEP
-;  V26 cse0         [V26,T09] (  3,  3   )     int  ->  rdx         "CSE #04: moderate"
-;  V27 cse1         [V27,T14] (  2,  2   )     int  ->  rdx         "CSE #01: moderate"
+;  V26 cse0         [V26,T09] (  3,  3   )     int  ->  rax         "CSE #04: moderate"
+;  V27 cse1         [V27,T14] (  2,  2   )     int  ->  rax         "CSE #01: moderate"
 ;
-; Lcl frame size = 0
+; Lcl frame size = 8
 
 G_M61567_IG01:
        push     rbp
        push     r15
+       push     r14
        push     rbx
-       lea      rbp, [rsp+0x10]
-       mov      eax, dword ptr [rbp+0x10]
-       mov      r10d, dword ptr [rbp+0x18]
-       mov      r11d, dword ptr [rbp+0x20]
-						;; size=20 bbWeight=1 PerfScore 6.50
+       push     rax
+       lea      rbp, [rsp+0x20]
+       mov      eax, edx
+       mov      r10d, dword ptr [rbp+0x10]
+       mov      r11d, dword ptr [rbp+0x18]
+       mov      ebx, dword ptr [rbp+0x20]
+						;; size=25 bbWeight=1 PerfScore 8.75
 G_M61567_IG02:
-       cmp      r11d, 2
+       cmp      ebx, 2
        ja       G_M61567_IG08
-       mov      ebx, esi
-       sub      ebx, 1
-       cmp      ebx, 0x270E
+       mov      edx, esi
+       sub      edx, 1
+       cmp      edx, 0x270E
        ja       G_M61567_IG09
-       mov      ebx, edx
-       sub      ebx, 1
-       cmp      ebx, 11
+       mov      edx, eax
+       sub      edx, 1
+       cmp      edx, 11
        ja       G_M61567_IG09
        test     ecx, ecx
        jle      G_M61567_IG09
        test     sil, 3
        jne      SHORT G_M61567_IG05
-						;; size=55 bbWeight=1 PerfScore 7.25
+						;; size=54 bbWeight=1 PerfScore 7.25
 G_M61567_IG03:
        test     sil, 15
        je       SHORT G_M61567_IG04
-       mov      ebx, esi
-       imul     rbx, rbx, 0xD1FFAB1E
-       shr      rbx, 35
-       imul     ebx, ebx, 25
+       mov      edx, 25
        mov      r15d, esi
-       sub      r15d, ebx
+       mov      r14, 0xD1FFAB1E
+       imul     r15, r14
+       mulx     rdx, rdx, r15
+       test     edx, edx
        je       SHORT G_M61567_IG05
-						;; size=30 bbWeight=0.50 PerfScore 3.75
+						;; size=37 bbWeight=0.50 PerfScore 4.12
 G_M61567_IG04:
-       mov      rbx, 0xD1FFAB1E      ; static handle
+       mov      rdx, 0xD1FFAB1E      ; static handle
        jmp      SHORT G_M61567_IG06
 						;; size=12 bbWeight=0.50 PerfScore 1.12
 G_M61567_IG05:
-       mov      rbx, 0xD1FFAB1E      ; static handle
+       mov      rdx, 0xD1FFAB1E      ; static handle
 						;; size=10 bbWeight=0.50 PerfScore 0.12
 G_M61567_IG06:
-       mov      r15d, edx
-       mov      r15d, dword ptr [rbx+4*r15]
-       dec      edx
-       mov      edx, dword ptr [rbx+4*rdx]
-       sub      r15d, edx
+       mov      r15d, eax
+       mov      r15d, dword ptr [rdx+4*r15]
+       dec      eax
+       mov      eax, dword ptr [rdx+4*rax]
+       sub      r15d, eax
        cmp      r15d, ecx
        jb       G_M61567_IG09
        dec      esi
-       mov      ebx, esi
-       imul     rbx, rbx, 0xD1FFAB1E
-       shr      rbx, 37
+       mov      edx, esi
+       imul     rdx, rdx, 0xD1FFAB1E
+       shr      rdx, 37
        imul     esi, esi, 0x5B5
        shr      esi, 2
-       sub      esi, ebx
-       shr      ebx, 2
-       add      esi, ebx
+       sub      esi, edx
+       shr      edx, 2
        add      edx, esi
-       lea      ecx, [rdx+rcx-0x01]
-       mov      rdx, 0xD1FFAB1E
-       imul     rcx, rdx
-       mov      edx, r11d
-       shl      rdx, 62
-       or       rcx, rdx
+       add      eax, edx
+       lea      eax, [rax+rcx-0x01]
+       mov      rcx, 0xD1FFAB1E
+       imul     rax, rcx
+       mov      ecx, ebx
+       shl      rcx, 62
+       or       rax, rcx
        cmp      r8d, 24
        jae      SHORT G_M61567_IG10
        cmp      r9d, 60
        jae      SHORT G_M61567_IG10
-       cmp      eax, 60
+       cmp      r10d, 60
        jae      SHORT G_M61567_IG10
-       imul     edx, r8d, 0xE10
-       imul     esi, r9d, 60
-       add      edx, esi
-       add      eax, edx
-       imul     rax, rax, 0xD1FFAB1E
+       imul     ecx, r8d, 0xE10
+       imul     edx, r9d, 60
+       add      ecx, edx
+       add      ecx, r10d
+       imul     rcx, rcx, 0xD1FFAB1E
        add      rax, rcx
        mov      qword ptr [rdi], rax
-       cmp      r10d, 0x3E8
+       cmp      r11d, 0x3E8
        jae      SHORT G_M61567_IG11
-       imul     eax, r10d, 0x2710
+       imul     eax, r11d, 0x2710
        add      qword ptr [rdi], rax
-						;; size=149 bbWeight=1 PerfScore 34.75
+						;; size=150 bbWeight=1 PerfScore 34.75
 G_M61567_IG07:
+       add      rsp, 8
        pop      rbx
+       pop      r14
        pop      r15
        pop      rbp
        ret      
-						;; size=5 bbWeight=1 PerfScore 2.50
+						;; size=11 bbWeight=1 PerfScore 3.25
 G_M61567_IG08:
        mov      rax, 0xD1FFAB1E      ; code for System.DateTime:ThrowInvalidKind()
        call     [rax]System.DateTime:ThrowInvalidKind()
        int3     
 						;; size=13 bbWeight=0 PerfScore 0.00
 G_M61567_IG09:
        mov      rax, 0xD1FFAB1E      ; code for System.ThrowHelper:ThrowArgumentOutOfRange_BadYearMonthDay()
        call     [rax]System.ThrowHelper:ThrowArgumentOutOfRange_BadYearMonthDay()
        int3     
 						;; size=13 bbWeight=0 PerfScore 0.00
 G_M61567_IG10:
        mov      rax, 0xD1FFAB1E      ; code for System.ThrowHelper:ThrowArgumentOutOfRange_BadHourMinuteSecond()
        call     [rax]System.ThrowHelper:ThrowArgumentOutOfRange_BadHourMinuteSecond()
        int3     
 						;; size=13 bbWeight=0 PerfScore 0.00
 G_M61567_IG11:
        mov      rax, 0xD1FFAB1E      ; code for System.DateTime:ThrowMillisecondOutOfRange()
        call     [rax]System.DateTime:ThrowMillisecondOutOfRange()
        int3     
 						;; size=13 bbWeight=0 PerfScore 0.00
 
-; Total bytes of code 333, prolog size 9, PerfScore 56.00, instruction count 89, allocated bytes for code 333 (MethodHash=1e500f80) for method System.DateTime:.ctor(int,int,int,int,int,int,int,int):this (FullOpts)
+; Total bytes of code 351, prolog size 12, PerfScore 59.38, instruction count 94, allocated bytes for code 351 (MethodHash=1e500f80) for method System.DateTime:.ctor(int,int,int,int,int,int,int,int):this (FullOpts)
 ; ============================================================

20 (3.75 % of base) - System.Buffers.Text.Utf8Parser:TryCreateDateTime(int,int,int,int,int,int,int,int,byref):bool

 ; Assembly listing for method System.Buffers.Text.Utf8Parser:TryCreateDateTime(int,int,int,int,int,int,int,int,byref):bool (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
 ; rbp based frame
 ; partially interruptible
 ; No PGO data
 ; 0 inlinees with PGO data; 4 single block inlinees; 6 inlinees without PGO data
 ; Final local variable assignments
 ;
-;  V00 arg0         [V00,T00] ( 14,  8.50)     int  ->  rdi         single-def
+;  V00 arg0         [V00,T00] ( 12,  7.50)     int  ->  rdi         single-def
 ;  V01 arg1         [V01,T04] (  5,  3   )     int  ->  rsi         single-def
-;  V02 arg2         [V02,T05] (  4,  3   )     int  ->  rdx         single-def
+;  V02 arg2         [V02,T05] (  4,  3   )     int  ->  rax         single-def
 ;  V03 arg3         [V03,T01] (  6,  4   )     int  ->  rcx        
 ;  V04 arg4         [V04,T02] (  5,  3.50)     int  ->   r8         single-def
 ;  V05 arg5         [V05,T03] (  5,  3.50)     int  ->   r9         single-def
 ;  V06 arg6         [V06,T14] (  2,  1   )     int  ->  [rbp+0x10]  single-def
 ;  V07 arg7         [V07,T15] (  2,  1   )     int  ->  [rbp+0x18]  single-def
 ;  V08 arg8         [V08,T13] (  2,  1   )   byref  ->  [rbp+0x20]  single-def
 ;  V09 loc0         [V09,T11] (  3,  1.50)     int  ->  r15        
 ;  V10 loc1         [V10,T12] (  3,  1.50)   ubyte  ->  r15        
 ;* V11 loc2         [V11    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op <System.ReadOnlySpan`1[int]>
 ;  V12 loc3         [V12,T07] (  5,  2.50)     int  ->  rdi        
 ;  V13 loc4         [V13,T06] (  8,  4   )    long  ->  rax        
 ;* V14 loc5         [V14    ] (  0,  0   )     int  ->  zero-ref   
 ;# V15 OutArgs      [V15    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
 ;* V16 tmp1         [V16    ] (  0,  0   )  struct (16) zero-ref    <System.ReadOnlySpan`1[int]>
 ;* V17 tmp2         [V17    ] (  0,  0   )  struct ( 8) zero-ref    ld-addr-op "NewObj constructor temp" <System.DateTime>
 ;* V18 tmp3         [V18    ] (  0,  0   )  struct (16) zero-ref    <System.ReadOnlySpan`1[byte]>
 ;* V19 tmp4         [V19    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "Inline stloc first use temp" <System.ReadOnlySpan`1[byte]>
 ;* V20 tmp5         [V20    ] (  0,  0   )   ubyte  ->  zero-ref    "Inline return value spill temp"
 ;* V21 tmp6         [V21    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "NewObj constructor temp" <System.ReadOnlySpan`1[byte]>
 ;* V22 tmp7         [V22    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "NewObj constructor temp" <System.ReadOnlySpan`1[byte]>
 ;* V23 tmp8         [V23    ] (  0,  0   )   ubyte  ->  zero-ref    "Inline return value spill temp"
 ;* V24 tmp9         [V24    ] (  0,  0   )  struct (16) zero-ref    "ReadOnlySpan<T> for CreateSpan<T>" <System.ReadOnlySpan`1[int]>
 ;* V25 tmp10        [V25    ] (  0,  0   )  struct (16) zero-ref    "ReadOnlySpan<T> for CreateSpan<T>" <System.ReadOnlySpan`1[int]>
 ;* V26 tmp11        [V26    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V11._reference (fldOffset=0x0)" P-INDEP
 ;* V27 tmp12        [V27    ] (  0,  0   )     int  ->  zero-ref    "field V11._length (fldOffset=0x8)" P-INDEP
-;  V28 tmp13        [V28,T09] (  3,  1.50)   byref  ->  rax         "field V16._reference (fldOffset=0x0)" P-INDEP
+;  V28 tmp13        [V28,T09] (  3,  1.50)   byref  ->  rdx         "field V16._reference (fldOffset=0x0)" P-INDEP
 ;* V29 tmp14        [V29    ] (  0,  0   )     int  ->  zero-ref    "field V16._length (fldOffset=0x8)" P-INDEP
 ;  V30 tmp15        [V30,T16] (  2,  1   )    long  ->  rcx         "field V17._dateData (fldOffset=0x0)" P-INDEP
-;  V31 tmp16        [V31,T10] (  3,  1.50)   byref  ->  rax         "field V18._reference (fldOffset=0x0)" P-INDEP
+;  V31 tmp16        [V31,T10] (  3,  1.50)   byref  ->  rdx         "field V18._reference (fldOffset=0x0)" P-INDEP
 ;* V32 tmp17        [V32    ] (  0,  0   )     int  ->  zero-ref    "field V18._length (fldOffset=0x8)" P-INDEP
 ;* V33 tmp18        [V33    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V19._reference (fldOffset=0x0)" P-INDEP
 ;* V34 tmp19        [V34    ] (  0,  0   )     int  ->  zero-ref    "field V19._length (fldOffset=0x8)" P-INDEP
 ;* V35 tmp20        [V35    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V21._reference (fldOffset=0x0)" P-INDEP
 ;* V36 tmp21        [V36    ] (  0,  0   )     int  ->  zero-ref    "field V21._length (fldOffset=0x8)" P-INDEP
 ;* V37 tmp22        [V37    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V22._reference (fldOffset=0x0)" P-INDEP
 ;* V38 tmp23        [V38    ] (  0,  0   )     int  ->  zero-ref    "field V22._length (fldOffset=0x8)" P-INDEP
 ;* V39 tmp24        [V39    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V24._reference (fldOffset=0x0)" P-INDEP
 ;* V40 tmp25        [V40    ] (  0,  0   )     int  ->  zero-ref    "field V24._length (fldOffset=0x8)" P-INDEP
 ;* V41 tmp26        [V41    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V25._reference (fldOffset=0x0)" P-INDEP
 ;* V42 tmp27        [V42    ] (  0,  0   )     int  ->  zero-ref    "field V25._length (fldOffset=0x8)" P-INDEP
 ;  V43 cse0         [V43,T08] (  4,  2   )     int  ->  rbx         "CSE #01: moderate"
 ;
 ; Lcl frame size = 8
 
 G_M49432_IG01:
        push     rbp
        push     r15
        push     r14
        push     rbx
        push     rax
        lea      rbp, [rsp+0x20]
-						;; size=12 bbWeight=1 PerfScore 5.50
+       mov      eax, edx
+						;; size=14 bbWeight=1 PerfScore 5.75
 G_M49432_IG02:
        test     edi, edi
        je       G_M49432_IG09
 						;; size=8 bbWeight=1 PerfScore 1.25
 G_M49432_IG03:
        lea      ebx, [rsi-0x01]
        cmp      ebx, 12
        jae      G_M49432_IG09
-       lea      r15d, [rdx-0x01]
+       lea      r15d, [rax-0x01]
        cmp      r15d, 28
        jb       SHORT G_M49432_IG07
-       mov      eax, esi
-       sub      eax, 1
-       cmp      eax, 11
+       mov      edx, esi
+       sub      edx, 1
+       cmp      edx, 11
        ja       G_M49432_IG18
-       mov      eax, edi
-       sub      eax, 1
-       cmp      eax, 0x270E
+       mov      edx, edi
+       sub      edx, 1
+       cmp      edx, 0x270E
        ja       G_M49432_IG19
        test     dil, 3
        jne      SHORT G_M49432_IG05
        test     dil, 15
        je       SHORT G_M49432_IG04
-       mov      eax, edi
-       imul     rax, rax, 0xD1FFAB1E
-       shr      rax, 35
-       imul     eax, eax, 25
+       mov      edx, 25
        mov      esi, edi
-       sub      esi, eax
+       mov      r10, 0xD1FFAB1E
+       imul     rsi, r10
+       mulx     rdx, rdx, rsi
+       test     edx, edx
        je       SHORT G_M49432_IG05
-						;; size=86 bbWeight=0.50 PerfScore 7.88
+						;; size=95 bbWeight=0.50 PerfScore 8.25
 G_M49432_IG04:
-       mov      rax, 0xD1FFAB1E      ; static handle
+       mov      rdx, 0xD1FFAB1E      ; static handle
        jmp      SHORT G_M49432_IG06
 						;; size=12 bbWeight=0.50 PerfScore 1.12
 G_M49432_IG05:
-       mov      rax, 0xD1FFAB1E      ; static handle
+       mov      rdx, 0xD1FFAB1E      ; static handle
 						;; size=10 bbWeight=0.50 PerfScore 0.12
 G_M49432_IG06:
        mov      esi, ebx
-       movzx    rax, byte  ptr [rax+rsi]
-       cmp      eax, r15d
+       movzx    rdx, byte  ptr [rdx+rsi]
+       cmp      edx, r15d
        jbe      SHORT G_M49432_IG09
 						;; size=11 bbWeight=0.50 PerfScore 1.75
 G_M49432_IG07:
        xor      r15d, r15d
        cmp      ecx, 24
        je       SHORT G_M49432_IG08
        cmp      ecx, 23
        mov      r14d, dword ptr [rbp+0x10]
        ja       SHORT G_M49432_IG09
        jmp      SHORT G_M49432_IG12
 						;; size=19 bbWeight=0.50 PerfScore 2.88
 G_M49432_IG08:
        mov      ecx, r8d
        or       ecx, r9d
        mov      r14d, dword ptr [rbp+0x10]
        or       ecx, r14d
        je       SHORT G_M49432_IG11
 						;; size=15 bbWeight=0.50 PerfScore 1.38
 G_M49432_IG09:
        xor      eax, eax
-       mov      rdx, bword ptr [rbp+0x20]
-       mov      qword ptr [rdx], rax
+       mov      rdi, bword ptr [rbp+0x20]
+       mov      qword ptr [rdi], rax
 						;; size=9 bbWeight=0.50 PerfScore 1.12
 G_M49432_IG10:
        add      rsp, 8
        pop      rbx
        pop      r14
        pop      r15
        pop      rbp
        ret      
 						;; size=11 bbWeight=0.50 PerfScore 1.62
 G_M49432_IG11:
        xor      ecx, ecx
        mov      r15d, 1
 						;; size=8 bbWeight=0.50 PerfScore 0.25
 G_M49432_IG12:
        cmp      r8d, 59
        ja       SHORT G_M49432_IG09
        cmp      r9d, 59
        ja       SHORT G_M49432_IG09
-       mov      eax, edi
-       sub      eax, 1
-       cmp      eax, 0x270E
+       mov      edx, edi
+       sub      edx, 1
+       cmp      edx, 0x270E
        ja       G_M49432_IG19
        test     dil, 3
        jne      SHORT G_M49432_IG14
        test     dil, 15
        je       SHORT G_M49432_IG13
-       mov      eax, edi
-       imul     rax, rax, 0xD1FFAB1E
-       shr      rax, 35
-       imul     eax, eax, 25
+       mov      edx, 25
        mov      esi, edi
-       sub      esi, eax
+       mov      r10, 0xD1FFAB1E
+       imul     rsi, r10
+       mulx     rdx, rdx, rsi
+       test     edx, edx
        je       SHORT G_M49432_IG14
-						;; size=62 bbWeight=0.50 PerfScore 6.50
+						;; size=71 bbWeight=0.50 PerfScore 6.88
 G_M49432_IG13:
-       mov      rax, 0xD1FFAB1E      ; static handle
+       mov      rdx, 0xD1FFAB1E      ; static handle
        jmp      SHORT G_M49432_IG15
 						;; size=12 bbWeight=0.50 PerfScore 1.12
 G_M49432_IG14:
-       mov      rax, 0xD1FFAB1E      ; static handle
+       mov      rdx, 0xD1FFAB1E      ; static handle
 						;; size=10 bbWeight=0.50 PerfScore 0.12
 G_M49432_IG15:
        dec      edi
        mov      esi, edi
        imul     rsi, rsi, 0xD1FFAB1E
        shr      rsi, 37
        mov      r10d, edi
        shr      r10d, 2
        imul     r11d, edi, 365
        add      r10d, r11d
        sub      r10d, esi
        imul     rdi, rdi, 0xD1FFAB1E
        shr      rdi, 39
        add      edi, r10d
        mov      esi, ebx
-       add      edi, dword ptr [rax+4*rsi]
-       lea      eax, [rdi+rdx-0x01]
+       add      edi, dword ptr [rdx+4*rsi]
+       lea      eax, [rdi+rax-0x01]
        cdqe     
        mov      rdx, 0xD1FFAB1E
        imul     rax, rdx
        imul     ecx, ecx, 0xE10
        imul     edx, r8d, 60
        add      ecx, edx
        add      ecx, r9d
        imul     rcx, rcx, 0xD1FFAB1E
        add      rax, rcx
        movsxd   rcx, r14d
        add      rax, rcx
        test     r15d, r15d
        je       SHORT G_M49432_IG16
        mov      rcx, 0xD1FFAB1E
        add      rax, rcx
        mov      rcx, 0xD1FFAB1E
        cmp      rax, rcx
        ja       G_M49432_IG09
 						;; size=142 bbWeight=0.50 PerfScore 12.62
 G_M49432_IG16:
        mov      rcx, 0xD1FFAB1E
        cmp      rax, rcx
        ja       SHORT G_M49432_IG20
        mov      ecx, dword ptr [rbp+0x18]
        cmp      ecx, 2
        ja       SHORT G_M49432_IG21
        shl      rcx, 62
        or       rcx, rax
-       mov      rdx, bword ptr [rbp+0x20]
-       mov      qword ptr [rdx], rcx
+       mov      rdi, bword ptr [rbp+0x20]
+       mov      qword ptr [rdi], rcx
        mov      eax, 1
 						;; size=42 bbWeight=0.50 PerfScore 3.38
 G_M49432_IG17:
        add      rsp, 8
        pop      rbx
        pop      r14
        pop      r15
        pop      rbp
        ret      
 						;; size=11 bbWeight=0.50 PerfScore 1.62
 G_M49432_IG18:
        mov      edi, esi
        mov      rax, 0xD1FFAB1E      ; code for System.ThrowHelper:ThrowArgumentOutOfRange_Month(int)
        call     [rax]System.ThrowHelper:ThrowArgumentOutOfRange_Month(int)
        int3     
 						;; size=15 bbWeight=0 PerfScore 0.00
 G_M49432_IG19:
        mov      rax, 0xD1FFAB1E      ; code for System.ThrowHelper:ThrowArgumentOutOfRange_Year()
        call     [rax]System.ThrowHelper:ThrowArgumentOutOfRange_Year()
        int3     
 						;; size=13 bbWeight=0 PerfScore 0.00
 G_M49432_IG20:
        mov      rax, 0xD1FFAB1E      ; code for System.DateTime:ThrowTicksOutOfRange()
        call     [rax]System.DateTime:ThrowTicksOutOfRange()
        int3     
 						;; size=13 bbWeight=0 PerfScore 0.00
 G_M49432_IG21:
        mov      rax, 0xD1FFAB1E      ; code for System.DateTime:ThrowInvalidKind()
        call     [rax]System.DateTime:ThrowInvalidKind()
        int3     
 						;; size=13 bbWeight=0 PerfScore 0.00
 
-; Total bytes of code 534, prolog size 12, PerfScore 50.25, instruction count 148, allocated bytes for code 534 (MethodHash=0c153ee7) for method System.Buffers.Text.Utf8Parser:TryCreateDateTime(int,int,int,int,int,int,int,int,byref):bool (FullOpts)
+; Total bytes of code 554, prolog size 12, PerfScore 51.25, instruction count 149, allocated bytes for code 554 (MethodHash=0c153ee7) for method System.Buffers.Text.Utf8Parser:TryCreateDateTime(int,int,int,int,int,int,int,int,byref):bool (FullOpts)
 ; ============================================================

15 (4.20 % of base) - System.DateTime:TryCreate(int,int,int,int,int,int,int,byref):bool

 ; Assembly listing for method System.DateTime:TryCreate(int,int,int,int,int,int,int,byref):bool (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
 ; rbp based frame
 ; partially interruptible
 ; No PGO data
 ; 0 inlinees with PGO data; 4 single block inlinees; 2 inlinees without PGO data
 ; Final local variable assignments
 ;
-;  V00 arg0         [V00,T00] (  8,  5.50)     int  ->  rdi         single-def
+;  V00 arg0         [V00,T00] (  7,  5   )     int  ->  rdi         single-def
 ;  V01 arg1         [V01,T02] (  5,  3.50)     int  ->  rsi         single-def
-;  V02 arg2         [V02,T03] (  5,  3.50)     int  ->  rdx         single-def
+;  V02 arg2         [V02,T03] (  5,  3.50)     int  ->  rax         single-def
 ;  V03 arg3         [V03,T01] (  7,  4.50)     int  ->  rcx        
 ;  V04 arg4         [V04,T04] (  5,  3.50)     int  ->   r8         single-def
 ;  V05 arg5         [V05,T05] (  5,  3.50)     int  ->   r9         single-def
-;  V06 arg6         [V06,T09] (  3,  1.50)     int  ->  rax         single-def
-;  V07 arg7         [V07,T13] (  2,  1.50)   byref  ->  r10         single-def
+;  V06 arg6         [V06,T09] (  3,  1.50)     int  ->  r10         single-def
+;  V07 arg7         [V07,T13] (  2,  1.50)   byref  ->  r11         single-def
 ;  V08 loc0         [V08,T10] (  3,  1.50)   ubyte  ->  rbx        
 ;* V09 loc1         [V09    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op <System.ReadOnlySpan`1[uint]>
-;  V10 loc2         [V10,T06] (  7,  3.50)    long  ->  rdx        
+;  V10 loc2         [V10,T06] (  7,  3.50)    long  ->  rax        
 ;# V11 OutArgs      [V11    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
 ;* V12 tmp1         [V12    ] (  0,  0   )  struct (16) zero-ref    <System.ReadOnlySpan`1[uint]>
 ;* V13 tmp2         [V13    ] (  0,  0   )  struct ( 8) zero-ref    ld-addr-op "NewObj constructor temp" <System.DateTime>
 ;* V14 tmp3         [V14    ] (  0,  0   )   ubyte  ->  zero-ref    "Inline return value spill temp"
 ;* V15 tmp4         [V15    ] (  0,  0   )  struct (16) zero-ref    "ReadOnlySpan<T> for CreateSpan<T>" <System.ReadOnlySpan`1[uint]>
 ;* V16 tmp5         [V16    ] (  0,  0   )  struct (16) zero-ref    "ReadOnlySpan<T> for CreateSpan<T>" <System.ReadOnlySpan`1[uint]>
 ;  V17 tmp6         [V17,T07] (  3,  3   )     int  ->  rdi         "dup spill"
-;  V18 tmp7         [V18,T11] (  3,  1.50)     int  ->  r11         "Inline stloc first use temp"
+;  V18 tmp7         [V18,T11] (  3,  1.50)     int  ->  rsi         "Inline stloc first use temp"
 ;* V19 tmp8         [V19    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V09._reference (fldOffset=0x0)" P-INDEP
 ;* V20 tmp9         [V20    ] (  0,  0   )     int  ->  zero-ref    "field V09._length (fldOffset=0x8)" P-INDEP
-;  V21 tmp10        [V21,T08] (  4,  2   )   byref  ->  r11         "field V12._reference (fldOffset=0x0)" P-INDEP
+;  V21 tmp10        [V21,T08] (  4,  2   )   byref  ->  rdx         "field V12._reference (fldOffset=0x0)" P-INDEP
 ;* V22 tmp11        [V22    ] (  0,  0   )     int  ->  zero-ref    "field V12._length (fldOffset=0x8)" P-INDEP
 ;* V23 tmp12        [V23    ] (  0,  0   )    long  ->  zero-ref    "field V13._dateData (fldOffset=0x0)" P-INDEP
 ;* V24 tmp13        [V24    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V15._reference (fldOffset=0x0)" P-INDEP
 ;* V25 tmp14        [V25    ] (  0,  0   )     int  ->  zero-ref    "field V15._length (fldOffset=0x8)" P-INDEP
 ;* V26 tmp15        [V26    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V16._reference (fldOffset=0x0)" P-INDEP
 ;* V27 tmp16        [V27    ] (  0,  0   )     int  ->  zero-ref    "field V16._length (fldOffset=0x8)" P-INDEP
-;  V28 cse0         [V28,T12] (  3,  1.50)     int  ->  rsi         "CSE #04: moderate"
+;  V28 cse0         [V28,T12] (  3,  1.50)     int  ->  rdx         "CSE #04: moderate"
 ;  V29 cse1         [V29,T14] (  2,  1   )     int  ->  rsi         "CSE #01: moderate"
 ;
-; Lcl frame size = 0
+; Lcl frame size = 8
 
 G_M49201_IG01:
        push     rbp
        push     r15
+       push     r14
        push     rbx
-       lea      rbp, [rsp+0x10]
-       mov      eax, dword ptr [rbp+0x10]
-       mov      r10, bword ptr [rbp+0x18]
-						;; size=16 bbWeight=1 PerfScore 5.50
+       push     rax
+       lea      rbp, [rsp+0x20]
+       mov      eax, edx
+       mov      r10d, dword ptr [rbp+0x10]
+       mov      r11, bword ptr [rbp+0x18]
+						;; size=22 bbWeight=1 PerfScore 7.75
 G_M49201_IG02:
-       xor      r11d, r11d
-       mov      qword ptr [r10], r11
-       mov      r11d, edi
-       sub      r11d, 1
-       cmp      r11d, 0x270E
+       xor      edx, edx
+       mov      qword ptr [r11], rdx
+       mov      edx, edi
+       sub      edx, 1
+       cmp      edx, 0x270E
        jbe      SHORT G_M49201_IG05
-						;; size=22 bbWeight=1 PerfScore 3.00
+						;; size=18 bbWeight=1 PerfScore 3.00
 G_M49201_IG03:
        xor      eax, eax
 						;; size=2 bbWeight=0.50 PerfScore 0.12
 G_M49201_IG04:
+       add      rsp, 8
        pop      rbx
+       pop      r14
        pop      r15
        pop      rbp
        ret      
-						;; size=5 bbWeight=0.50 PerfScore 1.25
+						;; size=11 bbWeight=0.50 PerfScore 1.62
 G_M49201_IG05:
-       mov      r11d, esi
-       sub      r11d, 1
-       cmp      r11d, 11
+       mov      edx, esi
+       sub      edx, 1
+       cmp      edx, 11
        ja       SHORT G_M49201_IG03
-       test     edx, edx
+       test     eax, eax
        jle      SHORT G_M49201_IG03
        xor      ebx, ebx
        cmp      ecx, 24
        je       SHORT G_M49201_IG06
        cmp      ecx, 24
        ja       SHORT G_M49201_IG03
        jmp      SHORT G_M49201_IG07
-						;; size=31 bbWeight=0.50 PerfScore 3.88
+						;; size=28 bbWeight=0.50 PerfScore 3.88
 G_M49201_IG06:
        mov      ecx, r8d
        or       ecx, r9d
-       or       ecx, eax
+       or       ecx, r10d
        jne      SHORT G_M49201_IG03
        xor      ecx, ecx
        mov      ebx, 1
-						;; size=17 bbWeight=0.50 PerfScore 1.12
+						;; size=18 bbWeight=0.50 PerfScore 1.12
 G_M49201_IG07:
        cmp      r8d, 60
        jae      SHORT G_M49201_IG03
-       cmp      eax, 0x3E8
+       cmp      r10d, 0x3E8
        jae      SHORT G_M49201_IG03
        test     dil, 3
        jne      SHORT G_M49201_IG09
        test     dil, 15
        je       SHORT G_M49201_IG08
-       mov      r11d, edi
-       imul     r11, r11, 0xD1FFAB1E
-       shr      r11, 35
-       imul     r11d, r11d, 25
+       mov      edx, 25
        mov      r15d, edi
-       sub      r15d, r11d
+       mov      r14, 0xD1FFAB1E
+       imul     r15, r14
+       mulx     rdx, rdx, r15
+       test     edx, edx
        je       SHORT G_M49201_IG09
-						;; size=51 bbWeight=0.50 PerfScore 5.62
+						;; size=58 bbWeight=0.50 PerfScore 6.00
 G_M49201_IG08:
-       mov      r11, 0xD1FFAB1E      ; static handle
+       mov      rdx, 0xD1FFAB1E      ; static handle
        jmp      SHORT G_M49201_IG10
 						;; size=12 bbWeight=0.50 PerfScore 1.12
 G_M49201_IG09:
-       mov      r11, 0xD1FFAB1E      ; static handle
+       mov      rdx, 0xD1FFAB1E      ; static handle
 						;; size=10 bbWeight=0.50 PerfScore 0.12
 G_M49201_IG10:
        mov      r15d, esi
-       mov      r15d, dword ptr [r11+4*r15]
+       mov      r15d, dword ptr [rdx+4*r15]
        dec      esi
-       mov      esi, dword ptr [r11+4*rsi]
-       sub      r15d, esi
-       cmp      r15d, edx
+       mov      edx, dword ptr [rdx+4*rsi]
+       sub      r15d, edx
+       cmp      r15d, eax
        jb       G_M49201_IG03
        dec      edi
-       mov      r11d, edi
-       imul     r11, r11, 0xD1FFAB1E
-       shr      r11, 37
+       mov      esi, edi
+       imul     rsi, rsi, 0xD1FFAB1E
+       shr      rsi, 37
        imul     edi, edi, 0x5B5
        shr      edi, 2
-       sub      edi, r11d
-       shr      r11d, 2
-       add      edi, r11d
+       sub      edi, esi
+       shr      esi, 2
        add      edi, esi
-       lea      edx, [rdi+rdx-0x01]
-       mov      rdi, 0xD1FFAB1E
-       imul     rdx, rdi
+       add      edx, edi
+       lea      eax, [rdx+rax-0x01]
+       mov      rdx, 0xD1FFAB1E
+       imul     rax, rdx
        cmp      r9d, 60
        jae      G_M49201_IG03
        cmp      ecx, 24
        jae      SHORT G_M49201_IG13
        imul     ecx, ecx, 0xE10
-       imul     edi, r8d, 60
-       add      ecx, edi
+       imul     edx, r8d, 60
+       add      ecx, edx
        add      ecx, r9d
        imul     rcx, rcx, 0xD1FFAB1E
-       add      rdx, rcx
-       imul     eax, eax, 0x2710
-       add      rdx, rax
+       add      rax, rcx
+       imul     ecx, r10d, 0x2710
+       add      rax, rcx
        test     ebx, ebx
        je       SHORT G_M49201_IG11
-       mov      rax, 0xD1FFAB1E
-       add      rdx, rax
-       mov      rax, 0xD1FFAB1E
-       cmp      rdx, rax
+       mov      rcx, 0xD1FFAB1E
+       add      rax, rcx
+       mov      rcx, 0xD1FFAB1E
+       cmp      rax, rcx
        ja       G_M49201_IG03
-						;; size=165 bbWeight=0.50 PerfScore 15.38
+						;; size=161 bbWeight=0.50 PerfScore 15.38
 G_M49201_IG11:
-       mov      qword ptr [r10], rdx
+       mov      qword ptr [r11], rax
        mov      eax, 1
 						;; size=8 bbWeight=0.50 PerfScore 0.62
 G_M49201_IG12:
+       add      rsp, 8
        pop      rbx
+       pop      r14
        pop      r15
        pop      rbp
        ret      
-						;; size=5 bbWeight=0.50 PerfScore 1.25
+						;; size=11 bbWeight=0.50 PerfScore 1.62
 G_M49201_IG13:
        mov      rax, 0xD1FFAB1E      ; code for System.ThrowHelper:ThrowArgumentOutOfRange_BadHourMinuteSecond()
        call     [rax]System.ThrowHelper:ThrowArgumentOutOfRange_BadHourMinuteSecond()
        int3     
 						;; size=13 bbWeight=0 PerfScore 0.00
 
-; Total bytes of code 357, prolog size 9, PerfScore 39.00, instruction count 101, allocated bytes for code 357 (MethodHash=87333fce) for method System.DateTime:TryCreate(int,int,int,int,int,int,int,byref):bool (FullOpts)
+; Total bytes of code 372, prolog size 12, PerfScore 42.38, instruction count 108, allocated bytes for code 372 (MethodHash=87333fce) for method System.DateTime:TryCreate(int,int,int,int,int,int,int,byref):bool (FullOpts)
 ; ============================================================

12 (2.52 % of base) - System.Xml.BinXmlDateTime:GetFractions(System.DateTime):int

 ; Assembly listing for method System.Xml.BinXmlDateTime:GetFractions(System.DateTime):int (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
 ; rbp based frame
 ; partially interruptible
 ; No PGO data
 ; 0 inlinees with PGO data; 12 single block inlinees; 4 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 arg0         [V00    ] (  8,  8   )  struct ( 8) [rbp-0x20]  do-not-enreg[XS] addr-exposed ld-addr-op single-def <System.DateTime>
 ;* V01 loc0         [V01    ] (  0,  0   )  struct ( 8) zero-ref    ld-addr-op <System.DateTime>
 ;# V02 OutArgs      [V02    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
-;  V03 tmp1         [V03,T10] (  2,  4   )    long  ->  rbx         "impAppendStmt"
-;  V04 tmp2         [V04,T00] (  7, 11   )     int  ->  r15         "impAppendStmt"
+;  V03 tmp1         [V03,T09] (  2,  4   )    long  ->  rbx         "impAppendStmt"
+;  V04 tmp2         [V04,T00] (  6, 10   )     int  ->  r15         "impAppendStmt"
 ;  V05 tmp3         [V05,T01] (  4,  8   )     int  ->  r14         "impAppendStmt"
 ;  V06 tmp4         [V06,T02] (  4,  8   )     int  ->  rax         "impAppendStmt"
-;  V07 tmp5         [V07,T11] (  2,  4   )     int  ->  rdi         "impAppendStmt"
+;  V07 tmp5         [V07,T10] (  2,  4   )     int  ->  rdi         "impAppendStmt"
 ;  V08 tmp6         [V08,T03] (  3,  6   )     int  ->  rsi         "impAppendStmt"
 ;* V09 tmp7         [V09    ] (  0,  0   )  struct ( 8) zero-ref    ld-addr-op "NewObj constructor temp" <System.DateTime>
-;  V10 tmp8         [V10,T15] (  2,  2   )    long  ->  rax         "Inline stloc first use temp"
+;  V10 tmp8         [V10,T14] (  2,  2   )    long  ->  rax         "Inline stloc first use temp"
 ;  V11 tmp9         [V11,T04] (  3,  6   )     int  ->  rcx         "Inlining Arg"
 ;* V12 tmp10        [V12    ] (  0,  0   )  struct (16) zero-ref    <System.ReadOnlySpan`1[uint]>
 ;* V13 tmp11        [V13    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "Inline stloc first use temp" <System.ReadOnlySpan`1[uint]>
 ;* V14 tmp12        [V14    ] (  0,  0   )   ubyte  ->  zero-ref    "Inline return value spill temp"
 ;* V15 tmp13        [V15    ] (  0,  0   )  struct (16) zero-ref    "ReadOnlySpan<T> for CreateSpan<T>" <System.ReadOnlySpan`1[uint]>
 ;* V16 tmp14        [V16    ] (  0,  0   )  struct (16) zero-ref    "ReadOnlySpan<T> for CreateSpan<T>" <System.ReadOnlySpan`1[uint]>
 ;  V17 tmp15        [V17,T05] (  3,  6   )     int  ->  r15         "dup spill"
-;  V18 tmp16        [V18,T13] (  3,  3   )     int  ->   r8         "Inline stloc first use temp"
+;  V18 tmp16        [V18,T12] (  3,  3   )     int  ->   r8         "Inline stloc first use temp"
 ;  V19 tmp17        [V19    ] (  8,  8   )    long  ->  [rbp-0x20]  do-not-enreg[X] addr-exposed single-def "field V00._dateData (fldOffset=0x0)" P-DEP
 ;* V20 tmp18        [V20    ] (  0,  0   )    long  ->  zero-ref    "field V01._dateData (fldOffset=0x0)" P-INDEP
-;  V21 tmp19        [V21,T16] (  2,  2   )    long  ->  rax         "field V09._dateData (fldOffset=0x0)" P-INDEP
-;  V22 tmp20        [V22,T12] (  4,  3   )   byref  ->  rdx         "field V12._reference (fldOffset=0x0)" P-INDEP
+;  V21 tmp19        [V21,T15] (  2,  2   )    long  ->  rax         "field V09._dateData (fldOffset=0x0)" P-INDEP
+;  V22 tmp20        [V22,T11] (  4,  3   )   byref  ->  rdx         "field V12._reference (fldOffset=0x0)" P-INDEP
 ;* V23 tmp21        [V23    ] (  0,  0   )     int  ->  zero-ref    "field V12._length (fldOffset=0x8)" P-INDEP
 ;* V24 tmp22        [V24    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V13._reference (fldOffset=0x0)" P-INDEP
 ;* V25 tmp23        [V25    ] (  0,  0   )     int  ->  zero-ref    "field V13._length (fldOffset=0x8)" P-INDEP
 ;* V26 tmp24        [V26    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V15._reference (fldOffset=0x0)" P-INDEP
 ;* V27 tmp25        [V27    ] (  0,  0   )     int  ->  zero-ref    "field V15._length (fldOffset=0x8)" P-INDEP
 ;* V28 tmp26        [V28    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V16._reference (fldOffset=0x0)" P-INDEP
 ;* V29 tmp27        [V29    ] (  0,  0   )     int  ->  zero-ref    "field V16._length (fldOffset=0x8)" P-INDEP
-;  V30 cse0         [V30,T14] (  3,  3   )     int  ->  rdx         "CSE #05: moderate"
-;  V31 cse1         [V31,T09] (  4,  4   )    long  ->  rcx         "CSE #01: moderate"
-;  V32 cse2         [V32,T17] (  2,  2   )     int  ->  r14         "CSE #02: moderate"
-;  V33 rat0         [V33,T06] (  3,  6   )     int  ->  rdi         "ReplaceWithLclVar is creating a new local variable"
-;  V34 rat1         [V34,T07] (  3,  6   )    long  ->  rsi         "ReplaceWithLclVar is creating a new local variable"
-;  V35 rat2         [V35,T08] (  3,  6   )    long  ->  rcx         "ReplaceWithLclVar is creating a new local variable"
+;  V30 cse0         [V30,T13] (  3,  3   )     int  ->  rdx         "CSE #05: moderate"
+;  V31 cse1         [V31,T08] (  4,  4   )    long  ->  rcx         "CSE #01: moderate"
+;  V32 cse2         [V32,T16] (  2,  2   )     int  ->  r14         "CSE #02: moderate"
+;  V33 rat0         [V33,T06] (  3,  6   )    long  ->  rsi         "ReplaceWithLclVar is creating a new local variable"
+;  V34 rat1         [V34,T07] (  3,  6   )    long  ->  rcx         "ReplaceWithLclVar is creating a new local variable"
 ;
 ; Lcl frame size = 8
 
 G_M57772_IG01:
        push     rbp
        push     r15
        push     r14
        push     rbx
        push     rax
        lea      rbp, [rsp+0x20]
        mov      qword ptr [rbp-0x20], rdi
 						;; size=16 bbWeight=1 PerfScore 6.50
 G_M57772_IG02:
        mov      rbx, 0xD1FFAB1E
        and      rbx, qword ptr [rbp-0x20]
        mov      rdi, qword ptr [rbp-0x20]
        mov      rax, 0xD1FFAB1E      ; code for System.DateTime:GetYear(ulong):int
        call     [rax]System.DateTime:GetYear(ulong):int
        mov      r15d, eax
        lea      rdi, [rbp-0x20]
        mov      rax, 0xD1FFAB1E      ; code for System.DateTime:get_Month():int:this
        call     [rax]System.DateTime:get_Month():int:this
        mov      r14d, eax
        lea      rdi, [rbp-0x20]
        mov      rax, 0xD1FFAB1E      ; code for System.DateTime:get_Day():int:this
        call     [rax]System.DateTime:get_Day():int:this
        mov      rcx, 0xD1FFAB1E
        and      rcx, qword ptr [rbp-0x20]
        mov      rdx, 0xD1FFAB1E
-       mulx     rdi, rdi, rcx
-       shr      rdi, 33
-       mov      edx, 0xD1FFAB1E
-       mov      esi, edi
+       mulx     rdx, rdx, rcx
+       shr      rdx, 33
+       mov      edi, 24
+       mov      edx, edx
+       mov      rsi, 0xD1FFAB1E
        imul     rdx, rsi
-       shr      rdx, 36
-       imul     edx, edx, 24
-       sub      edi, edx
+       mulx     rdi, rdi, rdi
        mov      rdx, 0xD1FFAB1E
        mulx     rsi, rsi, rcx
        shr      rsi, 29
        mov      rdx, 0xD1FFAB1E
        mulx     rdx, rdx, rsi
        imul     rdx, rdx, 60
        sub      rsi, rdx
        mov      rdx, 0xD1FFAB1E
        mulx     rcx, rcx, rcx
        shr      rcx, 23
        mov      rdx, 0xD1FFAB1E
        mulx     rdx, rdx, rcx
        imul     rdx, rdx, 60
        sub      rcx, rdx
        mov      edx, r15d
        sub      edx, 1
        cmp      edx, 0x270E
        ja       G_M57772_IG08
        mov      edx, r14d
        sub      edx, 1
        cmp      edx, 11
        ja       G_M57772_IG08
        test     eax, eax
        jle      G_M57772_IG08
        test     r15b, 3
        jne      SHORT G_M57772_IG05
-						;; size=250 bbWeight=1 PerfScore 48.25
+						;; size=256 bbWeight=1 PerfScore 48.75
 G_M57772_IG03:
        test     r15b, 15
        je       SHORT G_M57772_IG04
-       mov      edx, r15d
-       imul     rdx, rdx, 0xD1FFAB1E
-       shr      rdx, 35
-       imul     edx, edx, 25
+       mov      edx, 25
        mov      r8d, r15d
-       sub      r8d, edx
+       mov      r9, 0xD1FFAB1E
+       imul     r8, r9
+       mulx     rdx, rdx, r8
+       test     edx, edx
        je       SHORT G_M57772_IG05
-						;; size=31 bbWeight=0.50 PerfScore 3.75
+						;; size=37 bbWeight=0.50 PerfScore 4.12
 G_M57772_IG04:
        mov      rdx, 0xD1FFAB1E      ; static handle
        jmp      SHORT G_M57772_IG06
 						;; size=12 bbWeight=0.50 PerfScore 1.12
 G_M57772_IG05:
        mov      rdx, 0xD1FFAB1E      ; static handle
 						;; size=10 bbWeight=0.50 PerfScore 0.12
 G_M57772_IG06:
        mov      r8d, r14d
        mov      r8d, dword ptr [rdx+4*r8]
        dec      r14d
        mov      r9d, r14d
        mov      edx, dword ptr [rdx+4*r9]
        sub      r8d, edx
        cmp      r8d, eax
        jb       SHORT G_M57772_IG08
        dec      r15d
        mov      r8d, r15d
        imul     r8, r8, 0xD1FFAB1E
        shr      r8, 37
        imul     r9d, r15d, 0x5B5
        shr      r9d, 2
        sub      r9d, r8d
        shr      r8d, 2
        add      r8d, r9d
        add      edx, r8d
        lea      eax, [rdx+rax-0x01]
        mov      rdx, 0xD1FFAB1E
        imul     rax, rdx
        cmp      esi, 60
        jae      SHORT G_M57772_IG09
        cmp      ecx, 60
        jae      SHORT G_M57772_IG09
        imul     edx, edi, 0xE10
        imul     edi, esi, 60
        add      edx, edi
        add      ecx, edx
        imul     rcx, rcx, 0xD1FFAB1E
        add      rax, rcx
        sub      ebx, eax
        mov      eax, ebx
 						;; size=121 bbWeight=1 PerfScore 26.00
 G_M57772_IG07:
        add      rsp, 8
        pop      rbx
        pop      r14
        pop      r15
        pop      rbp
        ret      
 						;; size=11 bbWeight=1 PerfScore 3.25
 G_M57772_IG08:
        mov      rax, 0xD1FFAB1E      ; code for System.ThrowHelper:ThrowArgumentOutOfRange_BadYearMonthDay()
        call     [rax]System.ThrowHelper:ThrowArgumentOutOfRange_BadYearMonthDay()
        int3     
 						;; size=13 bbWeight=0 PerfScore 0.00
 G_M57772_IG09:
        mov      rax, 0xD1FFAB1E      ; code for System.ThrowHelper:ThrowArgumentOutOfRange_BadHourMinuteSecond()
        call     [rax]System.ThrowHelper:ThrowArgumentOutOfRange_BadHourMinuteSecond()
        int3     
 						;; size=13 bbWeight=0 PerfScore 0.00
 
-; Total bytes of code 477, prolog size 12, PerfScore 89.00, instruction count 114, allocated bytes for code 477 (MethodHash=6ce11e53) for method System.Xml.BinXmlDateTime:GetFractions(System.DateTime):int (FullOpts)
+; Total bytes of code 489, prolog size 12, PerfScore 89.88, instruction count 113, allocated bytes for code 489 (MethodHash=6ce11e53) for method System.Xml.BinXmlDateTime:GetFractions(System.DateTime):int (FullOpts)
 ; ============================================================

11 (6.11 % of base) - System.DateTime:DateToTicks(int,int,int):ulong

 ; Assembly listing for method System.DateTime:DateToTicks(int,int,int):ulong (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
 ; rbp based frame
 ; partially interruptible
 ; No PGO data
 ; 0 inlinees with PGO data; 3 single block inlinees; 1 inlinees without PGO data
 ; Final local variable assignments
 ;
-;  V00 arg0         [V00,T00] (  8,  6.50)     int  ->  rdi         single-def
+;  V00 arg0         [V00,T00] (  7,  6   )     int  ->  rdi         single-def
 ;  V01 arg1         [V01,T01] (  5,  5   )     int  ->  rsi         single-def
-;  V02 arg2         [V02,T02] (  5,  5   )     int  ->  rdx         single-def
+;  V02 arg2         [V02,T02] (  5,  5   )     int  ->  rax         single-def
 ;* V03 loc0         [V03    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op <System.ReadOnlySpan`1[uint]>
 ;# V04 OutArgs      [V04    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
 ;* V05 tmp1         [V05    ] (  0,  0   )  struct (16) zero-ref    <System.ReadOnlySpan`1[uint]>
 ;* V06 tmp2         [V06    ] (  0,  0   )   ubyte  ->  zero-ref    "Inline return value spill temp"
 ;* V07 tmp3         [V07    ] (  0,  0   )  struct (16) zero-ref    "ReadOnlySpan<T> for CreateSpan<T>" <System.ReadOnlySpan`1[uint]>
 ;* V08 tmp4         [V08    ] (  0,  0   )  struct (16) zero-ref    "ReadOnlySpan<T> for CreateSpan<T>" <System.ReadOnlySpan`1[uint]>
 ;  V09 tmp5         [V09,T03] (  3,  6   )     int  ->  rdi         "dup spill"
-;  V10 tmp6         [V10,T05] (  3,  3   )     int  ->  rcx         "Inline stloc first use temp"
+;  V10 tmp6         [V10,T05] (  3,  3   )     int  ->  rdx         "Inline stloc first use temp"
 ;* V11 tmp7         [V11    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V03._reference (fldOffset=0x0)" P-INDEP
 ;* V12 tmp8         [V12    ] (  0,  0   )     int  ->  zero-ref    "field V03._length (fldOffset=0x8)" P-INDEP
-;  V13 tmp9         [V13,T04] (  4,  3   )   byref  ->  rax         "field V05._reference (fldOffset=0x0)" P-INDEP
+;  V13 tmp9         [V13,T04] (  4,  3   )   byref  ->  rcx         "field V05._reference (fldOffset=0x0)" P-INDEP
 ;* V14 tmp10        [V14    ] (  0,  0   )     int  ->  zero-ref    "field V05._length (fldOffset=0x8)" P-INDEP
 ;* V15 tmp11        [V15    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V07._reference (fldOffset=0x0)" P-INDEP
 ;* V16 tmp12        [V16    ] (  0,  0   )     int  ->  zero-ref    "field V07._length (fldOffset=0x8)" P-INDEP
 ;* V17 tmp13        [V17    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V08._reference (fldOffset=0x0)" P-INDEP
 ;* V18 tmp14        [V18    ] (  0,  0   )     int  ->  zero-ref    "field V08._length (fldOffset=0x8)" P-INDEP
-;  V19 cse0         [V19,T06] (  3,  3   )     int  ->  rax         "CSE #04: aggressive"
+;  V19 cse0         [V19,T06] (  3,  3   )     int  ->  rcx         "CSE #04: aggressive"
 ;  V20 cse1         [V20,T07] (  2,  2   )     int  ->  rsi         "CSE #01: aggressive"
 ;
 ; Lcl frame size = 0
 
 G_M64116_IG01:
        push     rbp
        mov      rbp, rsp
-						;; size=4 bbWeight=1 PerfScore 1.25
+       mov      eax, edx
+						;; size=6 bbWeight=1 PerfScore 1.50
 G_M64116_IG02:
-       mov      eax, edi
-       sub      eax, 1
-       cmp      eax, 0x270E
+       mov      edx, edi
+       sub      edx, 1
+       cmp      edx, 0x270E
        ja       G_M64116_IG08
-       mov      eax, esi
-       sub      eax, 1
-       cmp      eax, 11
+       mov      edx, esi
+       sub      edx, 1
+       cmp      edx, 11
        ja       G_M64116_IG08
-       test     edx, edx
+       test     eax, eax
        jle      G_M64116_IG08
        test     dil, 3
        jne      SHORT G_M64116_IG05
-						;; size=44 bbWeight=1 PerfScore 6.00
+						;; size=45 bbWeight=1 PerfScore 6.00
 G_M64116_IG03:
        test     dil, 15
        je       SHORT G_M64116_IG04
-       mov      eax, edi
-       imul     rax, rax, 0xD1FFAB1E
-       shr      rax, 35
-       imul     eax, eax, 25
+       mov      edx, 25
        mov      ecx, edi
-       sub      ecx, eax
+       mov      r8, 0xD1FFAB1E
+       imul     rcx, r8
+       mulx     rcx, rcx, rcx
+       test     ecx, ecx
        je       SHORT G_M64116_IG05
-						;; size=28 bbWeight=0.50 PerfScore 3.75
+						;; size=36 bbWeight=0.50 PerfScore 4.12
 G_M64116_IG04:
-       mov      rax, 0xD1FFAB1E      ; static handle
+       mov      rcx, 0xD1FFAB1E      ; static handle
        jmp      SHORT G_M64116_IG06
 						;; size=12 bbWeight=0.50 PerfScore 1.12
 G_M64116_IG05:
-       mov      rax, 0xD1FFAB1E      ; static handle
+       mov      rcx, 0xD1FFAB1E      ; static handle
 						;; size=10 bbWeight=0.50 PerfScore 0.12
 G_M64116_IG06:
-       mov      ecx, esi
-       mov      ecx, dword ptr [rax+4*rcx]
+       mov      edx, esi
+       mov      edx, dword ptr [rcx+4*rdx]
        dec      esi
-       mov      eax, dword ptr [rax+4*rsi]
-       sub      ecx, eax
-       cmp      ecx, edx
+       mov      ecx, dword ptr [rcx+4*rsi]
+       sub      edx, ecx
+       cmp      edx, eax
        jb       SHORT G_M64116_IG08
        dec      edi
-       mov      ecx, edi
-       imul     rcx, rcx, 0xD1FFAB1E
-       shr      rcx, 37
+       mov      edx, edi
+       imul     rdx, rdx, 0xD1FFAB1E
+       shr      rdx, 37
        imul     edi, edi, 0x5B5
        shr      edi, 2
-       sub      edi, ecx
-       shr      ecx, 2
-       add      ecx, edi
-       add      eax, ecx
-       lea      eax, [rax+rdx-0x01]
+       sub      edi, edx
+       shr      edx, 2
+       add      edx, edi
+       add      ecx, edx
+       lea      eax, [rcx+rax-0x01]
        mov      rcx, 0xD1FFAB1E
        imul     rax, rcx
 						;; size=67 bbWeight=1 PerfScore 16.00
 G_M64116_IG07:
        pop      rbp
        ret      
 						;; size=2 bbWeight=1 PerfScore 1.50
 G_M64116_IG08:
        mov      rax, 0xD1FFAB1E      ; code for System.ThrowHelper:ThrowArgumentOutOfRange_BadYearMonthDay()
        call     [rax]System.ThrowHelper:ThrowArgumentOutOfRange_BadYearMonthDay()
        int3     
 						;; size=13 bbWeight=0 PerfScore 0.00
 
-; Total bytes of code 180, prolog size 4, PerfScore 29.75, instruction count 51, allocated bytes for code 180 (MethodHash=199b058b) for method System.DateTime:DateToTicks(int,int,int):ulong (FullOpts)
+; Total bytes of code 191, prolog size 4, PerfScore 30.38, instruction count 52, allocated bytes for code 191 (MethodHash=199b058b) for method System.DateTime:DateToTicks(int,int,int):ulong (FullOpts)
 ; ============================================================

10 (4.55 % of base) - System.DateOnly:.ctor(int,int,int):this

 ; Assembly listing for method System.DateOnly:.ctor(int,int,int):this (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
 ; rbp based frame
 ; partially interruptible
 ; No PGO data
 ; 0 inlinees with PGO data; 6 single block inlinees; 2 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 this         [V00,T04] (  3,  3   )   byref  ->  rdi         this single-def
-;  V01 arg1         [V01,T00] (  8,  6.50)     int  ->  rsi         single-def
-;  V02 arg2         [V02,T01] (  5,  5   )     int  ->  rdx         single-def
+;  V01 arg1         [V01,T00] (  7,  6   )     int  ->  rsi         single-def
+;  V02 arg2         [V02,T01] (  5,  5   )     int  ->  rax         single-def
 ;  V03 arg3         [V03,T02] (  5,  5   )     int  ->  rcx         single-def
 ;# V04 OutArgs      [V04    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
 ;* V05 tmp1         [V05    ] (  0,  0   )  struct ( 8) zero-ref    ld-addr-op "NewObj constructor temp" <System.DateTime>
 ;* V06 tmp2         [V06    ] (  0,  0   )  struct (16) zero-ref    <System.ReadOnlySpan`1[uint]>
 ;* V07 tmp3         [V07    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "Inline stloc first use temp" <System.ReadOnlySpan`1[uint]>
 ;* V08 tmp4         [V08    ] (  0,  0   )   ubyte  ->  zero-ref    "Inline return value spill temp"
 ;* V09 tmp5         [V09    ] (  0,  0   )  struct (16) zero-ref    "ReadOnlySpan<T> for CreateSpan<T>" <System.ReadOnlySpan`1[uint]>
 ;* V10 tmp6         [V10    ] (  0,  0   )  struct (16) zero-ref    "ReadOnlySpan<T> for CreateSpan<T>" <System.ReadOnlySpan`1[uint]>
 ;  V11 tmp7         [V11,T03] (  3,  6   )     int  ->  rsi         "dup spill"
 ;  V12 tmp8         [V12,T06] (  3,  3   )     int  ->  rax         "Inline stloc first use temp"
 ;* V13 tmp9         [V13    ] (  0,  0   )  struct ( 8) zero-ref    ld-addr-op "Inlining Arg" <System.DateTime>
 ;  V14 tmp10        [V14,T08] (  2,  2   )    long  ->  rdx         "field V05._dateData (fldOffset=0x0)" P-INDEP
-;  V15 tmp11        [V15,T05] (  4,  3   )   byref  ->  rax         "field V06._reference (fldOffset=0x0)" P-INDEP
+;  V15 tmp11        [V15,T05] (  4,  3   )   byref  ->  rdx         "field V06._reference (fldOffset=0x0)" P-INDEP
 ;* V16 tmp12        [V16    ] (  0,  0   )     int  ->  zero-ref    "field V06._length (fldOffset=0x8)" P-INDEP
 ;* V17 tmp13        [V17    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V07._reference (fldOffset=0x0)" P-INDEP
 ;* V18 tmp14        [V18    ] (  0,  0   )     int  ->  zero-ref    "field V07._length (fldOffset=0x8)" P-INDEP
 ;* V19 tmp15        [V19    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V09._reference (fldOffset=0x0)" P-INDEP
 ;* V20 tmp16        [V20    ] (  0,  0   )     int  ->  zero-ref    "field V09._length (fldOffset=0x8)" P-INDEP
 ;* V21 tmp17        [V21    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V10._reference (fldOffset=0x0)" P-INDEP
 ;* V22 tmp18        [V22    ] (  0,  0   )     int  ->  zero-ref    "field V10._length (fldOffset=0x8)" P-INDEP
 ;* V23 tmp19        [V23    ] (  0,  0   )    long  ->  zero-ref    "field V13._dateData (fldOffset=0x0)" P-INDEP
 ;  V24 cse0         [V24,T07] (  3,  3   )     int  ->  rdx         "CSE #04: moderate"
-;  V25 cse1         [V25,T09] (  2,  2   )     int  ->  rdx         "CSE #01: moderate"
+;  V25 cse1         [V25,T09] (  2,  2   )     int  ->  rax         "CSE #01: moderate"
 ;
 ; Lcl frame size = 0
 
 G_M17121_IG01:
        push     rbp
        mov      rbp, rsp
-						;; size=4 bbWeight=1 PerfScore 1.25
-G_M17121_IG02:
-       mov      eax, esi
-       sub      eax, 1
-       cmp      eax, 0x270E
-       ja       G_M17121_IG08
        mov      eax, edx
-       sub      eax, 1
-       cmp      eax, 11
+						;; size=6 bbWeight=1 PerfScore 1.50
+G_M17121_IG02:
+       mov      edx, esi
+       sub      edx, 1
+       cmp      edx, 0x270E
+       ja       G_M17121_IG08
+       mov      edx, eax
+       sub      edx, 1
+       cmp      edx, 11
        ja       G_M17121_IG08
        test     ecx, ecx
        jle      G_M17121_IG08
        test     sil, 3
        jne      SHORT G_M17121_IG05
-						;; size=44 bbWeight=1 PerfScore 6.00
+						;; size=45 bbWeight=1 PerfScore 6.00
 G_M17121_IG03:
        test     sil, 15
        je       SHORT G_M17121_IG04
-       mov      eax, esi
-       imul     rax, rax, 0xD1FFAB1E
-       shr      rax, 35
-       imul     eax, eax, 25
+       mov      edx, 25
        mov      r8d, esi
-       sub      r8d, eax
+       mov      r9, 0xD1FFAB1E
+       imul     r8, r9
+       mulx     rdx, rdx, r8
+       test     edx, edx
        je       SHORT G_M17121_IG05
-						;; size=30 bbWeight=0.50 PerfScore 3.75
+						;; size=37 bbWeight=0.50 PerfScore 4.12
 G_M17121_IG04:
-       mov      rax, 0xD1FFAB1E      ; static handle
+       mov      rdx, 0xD1FFAB1E      ; static handle
        jmp      SHORT G_M17121_IG06
 						;; size=12 bbWeight=0.50 PerfScore 1.12
 G_M17121_IG05:
-       mov      rax, 0xD1FFAB1E      ; static handle
+       mov      rdx, 0xD1FFAB1E      ; static handle
 						;; size=10 bbWeight=0.50 PerfScore 0.12
 G_M17121_IG06:
-       mov      r8d, edx
-       mov      r8d, dword ptr [rax+4*r8]
-       dec      edx
-       mov      edx, dword ptr [rax+4*rdx]
+       mov      r8d, eax
+       mov      r8d, dword ptr [rdx+4*r8]
+       dec      eax
+       mov      edx, dword ptr [rdx+4*rax]
        sub      r8d, edx
        cmp      r8d, ecx
        jb       SHORT G_M17121_IG08
        dec      esi
        mov      eax, esi
        imul     rax, rax, 0xD1FFAB1E
        shr      rax, 37
        imul     esi, esi, 0x5B5
        shr      esi, 2
        sub      esi, eax
        shr      eax, 2
        add      eax, esi
        add      edx, eax
        lea      edx, [rdx+rcx-0x01]
        mov      rax, 0xD1FFAB1E
        imul     rdx, rax
        mov      rax, 0xD1FFAB1E
        and      rdx, rax
        mov      rax, 0xD1FFAB1E
        mulx     rax, rax, rax
        shr      rax, 37
        mov      dword ptr [rdi], eax
 						;; size=105 bbWeight=1 PerfScore 21.25
 G_M17121_IG07:
        pop      rbp
        ret      
 						;; size=2 bbWeight=1 PerfScore 1.50
 G_M17121_IG08:
        mov      rax, 0xD1FFAB1E      ; code for System.ThrowHelper:ThrowArgumentOutOfRange_BadYearMonthDay()
        call     [rax]System.ThrowHelper:ThrowArgumentOutOfRange_BadYearMonthDay()
        int3     
 						;; size=13 bbWeight=0 PerfScore 0.00
 
-; Total bytes of code 220, prolog size 4, PerfScore 35.00, instruction count 57, allocated bytes for code 220 (MethodHash=d7d4bd1e) for method System.DateOnly:.ctor(int,int,int):this (FullOpts)
+; Total bytes of code 230, prolog size 4, PerfScore 35.62, instruction count 58, allocated bytes for code 230 (MethodHash=d7d4bd1e) for method System.DateOnly:.ctor(int,int,int):this (FullOpts)
 ; ============================================================

Note: some changes were skipped as they were too large to fit into a comment.

Larger list of diffs: https://gist.github.com/MihuBot/f6801b7e1d1c94ee634c6c0137b05e92

[MihuBot]

Top method improvements

-10 (-1.63 % of base) - System.DateTime:.ctor(int,int,int,int,int,int,int):this

 ; Assembly listing for method System.DateTime:.ctor(int,int,int,int,int,int,int):this (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
 ; rbp based frame
 ; partially interruptible
 ; No PGO data
 ; 0 inlinees with PGO data; 3 single block inlinees; 3 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 this         [V00,T06] (  3,  3   )   byref  ->  rdi         this single-def
-;  V01 arg1         [V01,T00] (  8,  6.50)     int  ->  rsi         single-def
-;  V02 arg2         [V02,T01] (  5,  5   )     int  ->  rdx         single-def
+;  V01 arg1         [V01,T00] (  7,  6   )     int  ->  rsi         single-def
+;  V02 arg2         [V02,T01] (  5,  5   )     int  ->  rax         single-def
 ;  V03 arg3         [V03,T02] (  5,  5   )     int  ->  rcx         single-def
 ;  V04 arg4         [V04,T03] (  4,  4   )     int  ->   r8         single-def
 ;  V05 arg5         [V05,T04] (  4,  4   )     int  ->   r9         single-def
-;  V06 arg6         [V06,T10] (  2,  2   )     int  ->  rax         single-def
-;  V07 arg7         [V07,T11] (  2,  2   )     int  ->  r10         single-def
-;  V08 loc0         [V08,T12] (  2,  2   )    long  ->  rcx        
+;  V06 arg6         [V06,T10] (  2,  2   )     int  ->  r10         single-def
+;  V07 arg7         [V07,T11] (  2,  2   )     int  ->  r11         single-def
+;  V08 loc0         [V08,T12] (  2,  2   )    long  ->  rax        
 ;# V09 OutArgs      [V09    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
 ;* V10 tmp1         [V10    ] (  0,  0   )  struct (16) zero-ref    <System.ReadOnlySpan`1[uint]>
 ;* V11 tmp2         [V11    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "Inline stloc first use temp" <System.ReadOnlySpan`1[uint]>
 ;* V12 tmp3         [V12    ] (  0,  0   )   ubyte  ->  zero-ref    "Inline return value spill temp"
 ;* V13 tmp4         [V13    ] (  0,  0   )  struct (16) zero-ref    "ReadOnlySpan<T> for CreateSpan<T>" <System.ReadOnlySpan`1[uint]>
 ;* V14 tmp5         [V14    ] (  0,  0   )  struct (16) zero-ref    "ReadOnlySpan<T> for CreateSpan<T>" <System.ReadOnlySpan`1[uint]>
 ;  V15 tmp6         [V15,T05] (  3,  6   )     int  ->  rsi         "dup spill"
-;  V16 tmp7         [V16,T08] (  3,  3   )     int  ->  r11         "Inline stloc first use temp"
-;  V17 tmp8         [V17,T07] (  4,  3   )   byref  ->  r11         "field V10._reference (fldOffset=0x0)" P-INDEP
+;  V16 tmp7         [V16,T08] (  3,  3   )     int  ->  rdx         "Inline stloc first use temp"
+;  V17 tmp8         [V17,T07] (  4,  3   )   byref  ->  rdx         "field V10._reference (fldOffset=0x0)" P-INDEP
 ;* V18 tmp9         [V18    ] (  0,  0   )     int  ->  zero-ref    "field V10._length (fldOffset=0x8)" P-INDEP
 ;* V19 tmp10        [V19    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V11._reference (fldOffset=0x0)" P-INDEP
 ;* V20 tmp11        [V20    ] (  0,  0   )     int  ->  zero-ref    "field V11._length (fldOffset=0x8)" P-INDEP
 ;* V21 tmp12        [V21    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V13._reference (fldOffset=0x0)" P-INDEP
 ;* V22 tmp13        [V22    ] (  0,  0   )     int  ->  zero-ref    "field V13._length (fldOffset=0x8)" P-INDEP
 ;* V23 tmp14        [V23    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V14._reference (fldOffset=0x0)" P-INDEP
 ;* V24 tmp15        [V24    ] (  0,  0   )     int  ->  zero-ref    "field V14._length (fldOffset=0x8)" P-INDEP
-;  V25 cse0         [V25,T09] (  3,  3   )     int  ->  rdx         "CSE #04: moderate"
-;  V26 cse1         [V26,T13] (  2,  2   )     int  ->  rdx         "CSE #01: moderate"
+;  V25 cse0         [V25,T09] (  3,  3   )     int  ->  rax         "CSE #04: moderate"
+;  V26 cse1         [V26,T13] (  2,  2   )     int  ->  rax         "CSE #01: moderate"
 ;
-; Lcl frame size = 8
+; Lcl frame size = 0
 
 G_M20576_IG01:
        push     rbp
+       push     r15
        push     rbx
-       push     rax
        lea      rbp, [rsp+0x10]
-       mov      eax, dword ptr [rbp+0x10]
-       mov      r10d, dword ptr [rbp+0x18]
-						;; size=15 bbWeight=1 PerfScore 5.50
+       mov      eax, edx
+       mov      r10d, dword ptr [rbp+0x10]
+       mov      r11d, dword ptr [rbp+0x18]
+						;; size=19 bbWeight=1 PerfScore 5.75
 G_M20576_IG02:
-       cmp      r10d, 2
+       cmp      r11d, 2
        ja       G_M20576_IG08
-       mov      r11d, esi
-       sub      r11d, 1
-       cmp      r11d, 0x270E
+       mov      edx, esi
+       sub      edx, 1
+       cmp      edx, 0x270E
        ja       G_M20576_IG09
-       mov      r11d, edx
-       sub      r11d, 1
-       cmp      r11d, 11
+       mov      edx, eax
+       sub      edx, 1
+       cmp      edx, 11
        ja       G_M20576_IG09
        test     ecx, ecx
        jle      G_M20576_IG09
        test     sil, 3
        jne      SHORT G_M20576_IG05
-						;; size=61 bbWeight=1 PerfScore 7.25
+						;; size=55 bbWeight=1 PerfScore 7.25
 G_M20576_IG03:
        test     sil, 15
        je       SHORT G_M20576_IG04
-       mov      r11d, esi
-       imul     r11, r11, 0xD1FFAB1E
-       shr      r11, 35
-       imul     r11d, r11d, 25
+       mov      edx, 25
        mov      ebx, esi
-       sub      ebx, r11d
+       mov      r15, 0xD1FFAB1E
+       imul     rbx, r15
+       mulx     rdx, rdx, rbx
+       test     edx, edx
        je       SHORT G_M20576_IG05
-						;; size=31 bbWeight=0.50 PerfScore 3.75
+						;; size=36 bbWeight=0.50 PerfScore 4.12
 G_M20576_IG04:
-       mov      r11, 0xD1FFAB1E      ; static handle
+       mov      rdx, 0xD1FFAB1E      ; static handle
        jmp      SHORT G_M20576_IG06
 						;; size=12 bbWeight=0.50 PerfScore 1.12
 G_M20576_IG05:
-       mov      r11, 0xD1FFAB1E      ; static handle
+       mov      rdx, 0xD1FFAB1E      ; static handle
 						;; size=10 bbWeight=0.50 PerfScore 0.12
 G_M20576_IG06:
-       mov      ebx, edx
-       mov      ebx, dword ptr [r11+4*rbx]
-       dec      edx
-       mov      edx, dword ptr [r11+4*rdx]
-       sub      ebx, edx
+       mov      ebx, eax
+       mov      ebx, dword ptr [rdx+4*rbx]
+       dec      eax
+       mov      eax, dword ptr [rdx+4*rax]
+       sub      ebx, eax
        cmp      ebx, ecx
        jb       G_M20576_IG09
        dec      esi
-       mov      r11d, esi
-       imul     r11, r11, 0xD1FFAB1E
-       shr      r11, 37
+       mov      edx, esi
+       imul     rdx, rdx, 0xD1FFAB1E
+       shr      rdx, 37
        imul     esi, esi, 0x5B5
        shr      esi, 2
-       sub      esi, r11d
-       shr      r11d, 2
-       add      esi, r11d
+       sub      esi, edx
+       shr      edx, 2
        add      edx, esi
-       lea      ecx, [rdx+rcx-0x01]
-       mov      rdx, 0xD1FFAB1E
-       imul     rcx, rdx
-       mov      edx, r10d
-       shl      rdx, 62
-       or       rcx, rdx
+       add      eax, edx
+       lea      eax, [rax+rcx-0x01]
+       mov      rcx, 0xD1FFAB1E
+       imul     rax, rcx
+       mov      ecx, r11d
+       shl      rcx, 62
+       or       rax, rcx
        cmp      r8d, 24
        jae      SHORT G_M20576_IG10
        cmp      r9d, 60
        jae      SHORT G_M20576_IG10
-       cmp      eax, 60
+       cmp      r10d, 60
        jae      SHORT G_M20576_IG10
-       imul     edx, r8d, 0xE10
-       imul     esi, r9d, 60
-       add      edx, esi
-       add      eax, edx
-       imul     rax, rax, 0xD1FFAB1E
+       imul     ecx, r8d, 0xE10
+       imul     edx, r9d, 60
+       add      ecx, edx
+       add      ecx, r10d
+       imul     rcx, rcx, 0xD1FFAB1E
        add      rax, rcx
        mov      qword ptr [rdi], rax
-						;; size=132 bbWeight=1 PerfScore 28.50
+						;; size=128 bbWeight=1 PerfScore 28.50
 G_M20576_IG07:
-       add      rsp, 8
        pop      rbx
+       pop      r15
        pop      rbp
        ret      
-						;; size=7 bbWeight=1 PerfScore 2.25
+						;; size=5 bbWeight=1 PerfScore 2.50
 G_M20576_IG08:
        mov      rax, 0xD1FFAB1E      ; code for System.DateTime:ThrowInvalidKind()
        call     [rax]System.DateTime:ThrowInvalidKind()
        int3     
 						;; size=13 bbWeight=0 PerfScore 0.00
 G_M20576_IG09:
        mov      rax, 0xD1FFAB1E      ; code for System.ThrowHelper:ThrowArgumentOutOfRange_BadYearMonthDay()
        call     [rax]System.ThrowHelper:ThrowArgumentOutOfRange_BadYearMonthDay()
        int3     
 						;; size=13 bbWeight=0 PerfScore 0.00
 G_M20576_IG10:
        mov      rax, 0xD1FFAB1E      ; code for System.ThrowHelper:ThrowArgumentOutOfRange_BadHourMinuteSecond()
        call     [rax]System.ThrowHelper:ThrowArgumentOutOfRange_BadHourMinuteSecond()
        int3     
 						;; size=13 bbWeight=0 PerfScore 0.00
 
-; Total bytes of code 307, prolog size 8, PerfScore 48.50, instruction count 81, allocated bytes for code 307 (MethodHash=23e9af9f) for method System.DateTime:.ctor(int,int,int,int,int,int,int):this (FullOpts)
+; Total bytes of code 304, prolog size 9, PerfScore 49.38, instruction count 82, allocated bytes for code 304 (MethodHash=23e9af9f) for method System.DateTime:.ctor(int,int,int,int,int,int,int):this (FullOpts)
 ; ============================================================

-10 (-2.87 % of base) - System.IO.Hashing.Adler32:UpdateVector128(uint,System.ReadOnlySpan`1[byte]):uint

 ; Assembly listing for method System.IO.Hashing.Adler32:UpdateVector128(uint,System.ReadOnlySpan`1[byte]):uint (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
 ; rbp based frame
 ; fully interruptible
 ; No PGO data
 ; 0 inlinees with PGO data; 1 single block inlinees; 1 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 arg0         [V00,T05] (  4,  4   )     int  ->  rdi         single-def
 ;* V01 arg1         [V01    ] (  0,  0   )  struct (16) zero-ref    multireg-arg ld-addr-op single-def <System.ReadOnlySpan`1[byte]>
-;  V02 loc0         [V02    ] (  9, 50.50)     int  ->  [rbp-0x08]  do-not-enreg[X] addr-exposed ld-addr-op
-;  V03 loc1         [V03    ] (  8, 42.50)     int  ->  [rbp-0x10]  do-not-enreg[X] addr-exposed ld-addr-op
+;  V02 loc0         [V02    ] (  8, 42.50)     int  ->  [rbp-0x08]  do-not-enreg[X] addr-exposed ld-addr-op
+;  V03 loc1         [V03    ] (  7, 34.50)     int  ->  [rbp-0x10]  do-not-enreg[X] addr-exposed ld-addr-op
 ;  V04 loc2         [V04,T00] (  6,257.50)   byref  ->  rdi        
 ;  V05 loc3         [V05,T03] (  8, 36.50)     int  ->  rsi        
 ;  V06 loc4         [V06,T14] (  2, 65   )  simd16  ->  mm0         single-def <System.Runtime.Intrinsics.Vector128`1[sbyte]>
 ;  V07 loc5         [V07,T15] (  2, 65   )  simd16  ->  mm1         single-def <System.Runtime.Intrinsics.Vector128`1[sbyte]>
 ;* V08 loc6         [V08    ] (  0,  0   )     int  ->  zero-ref   
 ;  V09 loc7         [V09,T02] (  6,216   )     int  ->  rdx        
 ;  V10 loc8         [V10,T08] (  6,216   )  simd16  ->  mm3         <System.Runtime.Intrinsics.Vector128`1[uint]>
 ;  V11 loc9         [V11,T11] (  7,168   )  simd16  ->  mm4         <System.Runtime.Intrinsics.Vector128`1[uint]>
 ;  V12 loc10        [V12,T12] (  4,144   )  simd16  ->  mm5         <System.Runtime.Intrinsics.Vector128`1[uint]>
 ;  V13 loc11        [V13,T09] (  3,192   )  simd16  ->  mm6         <System.Runtime.Intrinsics.Vector128`1[byte]>
 ;  V14 loc12        [V14,T10] (  3,192   )  simd16  ->  mm7         <System.Runtime.Intrinsics.Vector128`1[byte]>
 ;* V15 loc13        [V15    ] (  0,  0   )  simd16  ->  zero-ref    <System.Runtime.Intrinsics.Vector128`1[ushort]>
 ;* V16 loc14        [V16    ] (  0,  0   )  simd16  ->  zero-ref    <System.Runtime.Intrinsics.Vector128`1[ushort]>
 ;* V17 loc15        [V17    ] (  0,  0   )  simd16  ->  zero-ref    <System.Runtime.Intrinsics.Vector128`1[ushort]>
 ;* V18 loc16        [V18    ] (  0,  0   )  simd16  ->  zero-ref    <System.Runtime.Intrinsics.Vector128`1[ushort]>
 ;* V19 loc17        [V19    ] (  0,  0   )  simd16  ->  zero-ref    <System.Runtime.Intrinsics.Vector128`1[ushort]>
 ;* V20 loc18        [V20    ] (  0,  0   )  simd16  ->  zero-ref    <System.Runtime.Intrinsics.Vector128`1[ushort]>
 ;* V21 loc19        [V21    ] (  0,  0   )  simd16  ->  zero-ref    <System.Runtime.Intrinsics.Vector128`1[uint]>
 ;* V22 loc20        [V22    ] (  0,  0   )  simd16  ->  zero-ref    <System.Runtime.Intrinsics.Vector128`1[uint]>
 ;# V23 OutArgs      [V23    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
 ;  V24 tmp1         [V24,T01] (  2,256   )     int  ->  rdx         "dup spill"
 ;  V25 tmp2         [V25,T16] (  3, 48   )  simd16  ->  mm3         "fgMakeTemp is creating a new local variable"
 ;  V26 tmp3         [V26,T17] (  3, 48   )  simd16  ->  mm3         "fgMakeTemp is creating a new local variable"
 ;* V27 tmp4         [V27    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "Inlining Arg" <System.ReadOnlySpan`1[byte]>
 ;  V28 tmp5         [V28,T04] (  3, 12   )     int  ->  rdx         "Inline return value spill temp"
 ;  V29 tmp6         [V29,T06] (  2,  2   )   byref  ->  rsi         single-def "field V01._reference (fldOffset=0x0)" P-INDEP
 ;  V30 tmp7         [V30,T07] (  2,  2   )     int  ->  rdx         single-def "field V01._length (fldOffset=0x8)" P-INDEP
 ;* V31 tmp8         [V31    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V27._reference (fldOffset=0x0)" P-INDEP
 ;* V32 tmp9         [V32    ] (  0,  0   )     int  ->  zero-ref    "field V27._length (fldOffset=0x8)" P-INDEP
 ;  V33 cse0         [V33,T13] (  3,129   )  simd16  ->  mm2         hoist "CSE #01: aggressive"
 ;
 ; Lcl frame size = 16
 
 G_M13336_IG01:
        push     rbp
        sub      rsp, 16
        lea      rbp, [rsp+0x10]
 						;; size=10 bbWeight=1 PerfScore 1.75
 G_M13336_IG02:
        movzx    rcx, di
        mov      dword ptr [rbp-0x08], ecx
        shr      edi, 16
        movzx    rcx, di
        mov      dword ptr [rbp-0x10], ecx
        mov      rdi, rsi
        mov      esi, edx
        vmovups  xmm0, xmmword ptr [reloc @RWD00]
        vmovups  xmm1, xmmword ptr [reloc @RWD16]
        vbroadcastss xmm2, dword ptr [reloc @RWD32]
 						;; size=45 bbWeight=1 PerfScore 7.50
 G_M13336_IG03:
        cmp      esi, 0x15B0
        jg       SHORT G_M13336_IG05
 						;; size=8 bbWeight=8 PerfScore 10.00
 G_M13336_IG04:
        mov      edx, esi
        jmp      SHORT G_M13336_IG06
        align    [0 bytes for IG07]
 						;; size=4 bbWeight=2 PerfScore 4.50
 G_M13336_IG05:
        mov      edx, 0x15B0
 						;; size=5 bbWeight=2 PerfScore 0.50
 G_M13336_IG06:
        shr      edx, 5
        mov      ecx, edx
        shl      ecx, 5
        sub      esi, ecx
        vxorps   xmm3, xmm3, xmm3
        vmovd    xmm4, dword ptr [rbp-0x10]
        mov      ecx, edx
        imul     ecx, dword ptr [rbp-0x08]
        vmovd    xmm5, ecx
 						;; size=29 bbWeight=8 PerfScore 96.67
 G_M13336_IG07:
        vmovups  xmm6, xmmword ptr [rdi]
        vmovups  xmm7, xmmword ptr [rdi+0x10]
        add      rdi, 32
        vpaddd   xmm5, xmm3, xmm5
        vxorps   xmm8, xmm8, xmm8
        vpsadbw  xmm8, xmm6, xmm8
        vpaddd   xmm3, xmm8, xmm3
        vxorps   xmm8, xmm8, xmm8
        vpsadbw  xmm8, xmm7, xmm8
        vpaddd   xmm3, xmm8, xmm3
        vpmaddubsw xmm6, xmm6, xmm0
        vpmaddwd xmm6, xmm6, xmm2
        vpaddd   xmm4, xmm6, xmm4
        vpmaddubsw xmm6, xmm7, xmm1
        vpmaddwd xmm6, xmm6, xmm2
        vpaddd   xmm4, xmm6, xmm4
        dec      edx
        test     edx, edx
        jg       SHORT G_M13336_IG07
 						;; size=77 bbWeight=64 PerfScore 1797.33
 G_M13336_IG08:
        vpslld   xmm5, xmm5, 5
        vpaddd   xmm4, xmm5, xmm4
        vpsrldq  xmm5, xmm3, 8
        vpaddd   xmm3, xmm5, xmm3
        vpsrldq  xmm5, xmm3, 4
        vpaddd   xmm3, xmm5, xmm3
        vmovd    edx, xmm3
        add      edx, dword ptr [rbp-0x08]
        mov      dword ptr [rbp-0x08], edx
        vpsrldq  xmm3, xmm4, 8
        vpaddd   xmm3, xmm3, xmm4
        vpsrldq  xmm4, xmm3, 4
        vpaddd   xmm3, xmm4, xmm3
        vmovd    edx, xmm3
        mov      dword ptr [rbp-0x10], edx
-       mov      edx, 0xD1FFAB1E
+       mov      edx, 0xFFF1
        mov      ecx, dword ptr [rbp-0x08]
-       imul     rdx, rcx
-       shr      rdx, 47
-       imul     edx, edx, 0xFFF1
-       mov      ecx, dword ptr [rbp-0x08]
-       sub      ecx, edx
-       mov      dword ptr [rbp-0x08], ecx
-       mov      edx, 0xD1FFAB1E
+       mov      rax, 0xD1FFAB1E
+       imul     rcx, rax
+       mulx     rdx, rdx, rcx
+       mov      dword ptr [rbp-0x08], edx
+       mov      edx, 0xFFF1
        mov      ecx, dword ptr [rbp-0x10]
-       imul     rdx, rcx
-       shr      rdx, 47
-       imul     edx, edx, 0xFFF1
-       mov      ecx, dword ptr [rbp-0x10]
-       sub      ecx, edx
-       mov      dword ptr [rbp-0x10], ecx
+       imul     rcx, rax
+       mulx     rdx, rdx, rcx
+       mov      dword ptr [rbp-0x10], edx
        cmp      esi, 32
        jge      G_M13336_IG03
-						;; size=131 bbWeight=8 PerfScore 247.33
+						;; size=121 bbWeight=8 PerfScore 237.33
 G_M13336_IG09:
        test     esi, esi
        jle      SHORT G_M13336_IG11
 						;; size=4 bbWeight=1 PerfScore 1.25
 G_M13336_IG10:
        lea      rdx, [rbp-0x08]
        lea      rcx, [rbp-0x10]
        mov      rax, 0xD1FFAB1E      ; code for System.IO.Hashing.Adler32:UpdateScalarTail(byref,int,byref,byref)
        call     [rax]System.IO.Hashing.Adler32:UpdateScalarTail(byref,int,byref,byref)
 						;; size=20 bbWeight=0.50 PerfScore 2.12
 G_M13336_IG11:
        mov      eax, dword ptr [rbp-0x10]
        shl      eax, 16
        or       eax, dword ptr [rbp-0x08]
 						;; size=9 bbWeight=1 PerfScore 2.50
 G_M13336_IG12:
        add      rsp, 16
        pop      rbp
        ret      
 						;; size=6 bbWeight=1 PerfScore 1.75
 RWD00  	dq	191A1B1C1D1E1F20h, 1112131415161718h
 RWD16  	dq	090A0B0C0D0E0F10h, 0102030405060708h
 RWD32  	dd	00010001h		; 9.18369e-41
 
 
-; Total bytes of code 348, prolog size 10, PerfScore 2173.21, instruction count 92, allocated bytes for code 348 (MethodHash=b006cbe7) for method System.IO.Hashing.Adler32:UpdateVector128(uint,System.ReadOnlySpan`1[byte]):uint (FullOpts)
+; Total bytes of code 338, prolog size 10, PerfScore 2163.21, instruction count 87, allocated bytes for code 338 (MethodHash=b006cbe7) for method System.IO.Hashing.Adler32:UpdateVector128(uint,System.ReadOnlySpan`1[byte]):uint (FullOpts)
 ; ============================================================

-10 (-3.08 % of base) - System.IO.Hashing.Adler32:UpdateVector256(uint,System.ReadOnlySpan`1[byte]):uint

 ; Assembly listing for method System.IO.Hashing.Adler32:UpdateVector256(uint,System.ReadOnlySpan`1[byte]):uint (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
 ; rbp based frame
 ; fully interruptible
 ; No PGO data
 ; 0 inlinees with PGO data; 1 single block inlinees; 1 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 arg0         [V00,T05] (  4,  4   )     int  ->  rdi         single-def
 ;* V01 arg1         [V01    ] (  0,  0   )  struct (16) zero-ref    multireg-arg ld-addr-op single-def <System.ReadOnlySpan`1[byte]>
-;  V02 loc0         [V02    ] (  8, 42.50)     int  ->  [rbp-0x08]  do-not-enreg[X] addr-exposed ld-addr-op
-;  V03 loc1         [V03    ] (  8, 42.50)     int  ->  [rbp-0x10]  do-not-enreg[X] addr-exposed ld-addr-op
+;  V02 loc0         [V02    ] (  7, 34.50)     int  ->  [rbp-0x08]  do-not-enreg[X] addr-exposed ld-addr-op
+;  V03 loc1         [V03    ] (  7, 34.50)     int  ->  [rbp-0x10]  do-not-enreg[X] addr-exposed ld-addr-op
 ;  V04 loc2         [V04,T02] (  5,193.50)   byref  ->  rdi        
 ;  V05 loc3         [V05,T03] (  8, 36.50)     int  ->  rsi        
 ;  V06 loc4         [V06,T13] (  2, 65   )  simd32  ->  mm0         single-def <System.Runtime.Intrinsics.Vector256`1[sbyte]>
 ;* V07 loc5         [V07    ] (  0,  0   )     int  ->  zero-ref   
 ;  V08 loc6         [V08,T01] (  5,208   )     int  ->  rdx        
 ;  V09 loc7         [V09,T11] (  5,152   )  simd32  ->  registers   <System.Runtime.Intrinsics.Vector256`1[uint]>
 ;  V10 loc8         [V10,T10] (  7,168   )  simd32  ->  mm3         <System.Runtime.Intrinsics.Vector256`1[uint]>
 ;  V11 loc9         [V11,T12] (  4,144   )  simd32  ->  mm4         <System.Runtime.Intrinsics.Vector256`1[uint]>
 ;  V12 loc10        [V12,T08] (  3,192   )  simd32  ->  mm5         <System.Runtime.Intrinsics.Vector256`1[byte]>
 ;  V13 loc11        [V13,T09] (  3,192   )  simd32  ->  mm2         <System.Runtime.Intrinsics.Vector256`1[uint]>
 ;* V14 loc12        [V14    ] (  0,  0   )  simd32  ->  zero-ref    <System.Runtime.Intrinsics.Vector256`1[short]>
 ;# V15 OutArgs      [V15    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
 ;  V16 tmp1         [V16,T00] (  2,256   )     int  ->  rdx         "dup spill"
 ;  V17 tmp2         [V17,T15] (  3, 48   )  simd16  ->  mm2         "fgMakeTemp is creating a new local variable"
 ;  V18 tmp3         [V18,T16] (  3, 48   )  simd16  ->  mm2         "fgMakeTemp is creating a new local variable"
 ;  V19 tmp4         [V19,T17] (  3, 48   )  simd16  ->  mm2         "fgMakeTemp is creating a new local variable"
 ;* V20 tmp5         [V20    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "Inlining Arg" <System.ReadOnlySpan`1[byte]>
 ;  V21 tmp6         [V21,T04] (  3, 12   )     int  ->  rdx         "Inline return value spill temp"
 ;  V22 tmp7         [V22,T06] (  2,  2   )   byref  ->  rsi         single-def "field V01._reference (fldOffset=0x0)" P-INDEP
 ;  V23 tmp8         [V23,T07] (  2,  2   )     int  ->  rdx         single-def "field V01._length (fldOffset=0x8)" P-INDEP
 ;* V24 tmp9         [V24    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V20._reference (fldOffset=0x0)" P-INDEP
 ;* V25 tmp10        [V25    ] (  0,  0   )     int  ->  zero-ref    "field V20._length (fldOffset=0x8)" P-INDEP
 ;  V26 cse0         [V26,T14] (  2, 65   )  simd32  ->  mm1         hoist "CSE #01: aggressive"
 ;
 ; Lcl frame size = 16
 
 G_M30002_IG01:
        push     rbp
        sub      rsp, 16
        lea      rbp, [rsp+0x10]
 						;; size=10 bbWeight=1 PerfScore 1.75
 G_M30002_IG02:
        movzx    rcx, di
        mov      dword ptr [rbp-0x08], ecx
        shr      edi, 16
        movzx    rcx, di
        mov      dword ptr [rbp-0x10], ecx
        mov      rdi, rsi
        mov      esi, edx
        vmovups  ymm0, ymmword ptr [reloc @RWD00]
        vbroadcastss ymm1, dword ptr [reloc @RWD32]
 						;; size=37 bbWeight=1 PerfScore 10.50
 G_M30002_IG03:
        cmp      esi, 0x15B0
        jg       SHORT G_M30002_IG05
 						;; size=8 bbWeight=8 PerfScore 10.00
 G_M30002_IG04:
        mov      edx, esi
        jmp      SHORT G_M30002_IG06
        align    [0 bytes for IG07]
 						;; size=4 bbWeight=2 PerfScore 4.50
 G_M30002_IG05:
        mov      edx, 0x15B0
 						;; size=5 bbWeight=2 PerfScore 0.50
 G_M30002_IG06:
        shr      edx, 5
        mov      ecx, edx
        shl      ecx, 5
        sub      esi, ecx
        vmovd    xmm2, dword ptr [rbp-0x08]
        vmovd    xmm3, dword ptr [rbp-0x10]
        vxorps   ymm4, ymm4, ymm4
 						;; size=24 bbWeight=8 PerfScore 78.67
 G_M30002_IG07:
        vmovups  ymm5, ymmword ptr [rdi]
        add      rdi, 32
        vxorps   ymm6, ymm6, ymm6
        vpsadbw  ymm6, ymm5, ymm6
        vpaddd   ymm6, ymm6, ymm2
        vpaddd   ymm4, ymm4, ymm2
        vpmaddubsw ymm2, ymm5, ymm0
        vpmaddwd ymm2, ymm2, ymm1
        vpaddd   ymm3, ymm2, ymm3
        dec      edx
        test     edx, edx
        vmovaps  ymm2, ymm6
        jg       SHORT G_M30002_IG07
 						;; size=47 bbWeight=64 PerfScore 1045.33
 G_M30002_IG08:
        vpslld   ymm4, ymm4, 5
        vpaddd   ymm3, ymm4, ymm3
        vmovaps  ymm4, ymm2
        vextracti128 xmm2, ymm2
        vpaddq   xmm2, xmm2, xmm4
        vpsrldq  xmm4, xmm2, 8
        vpaddq   xmm2, xmm4, xmm2
        vmovq    rdx, xmm2
        mov      dword ptr [rbp-0x08], edx
        vmovaps  ymm2, ymm3
        vextracti128 xmm3, ymm3
        vpaddd   xmm2, xmm3, xmm2
        vpsrldq  xmm3, xmm2, 8
        vpaddd   xmm2, xmm3, xmm2
        vpsrldq  xmm3, xmm2, 4
        vpaddd   xmm2, xmm3, xmm2
        vmovd    edx, xmm2
        mov      dword ptr [rbp-0x10], edx
-       mov      edx, 0xD1FFAB1E
+       mov      edx, 0xFFF1
        mov      ecx, dword ptr [rbp-0x08]
-       imul     rdx, rcx
-       shr      rdx, 47
-       imul     edx, edx, 0xFFF1
-       mov      ecx, dword ptr [rbp-0x08]
-       sub      ecx, edx
-       mov      dword ptr [rbp-0x08], ecx
-       mov      edx, 0xD1FFAB1E
+       mov      rax, 0xD1FFAB1E
+       imul     rcx, rax
+       mulx     rdx, rdx, rcx
+       mov      dword ptr [rbp-0x08], edx
+       mov      edx, 0xFFF1
        mov      ecx, dword ptr [rbp-0x10]
-       imul     rdx, rcx
-       shr      rdx, 47
-       imul     edx, edx, 0xFFF1
-       mov      ecx, dword ptr [rbp-0x10]
-       sub      ecx, edx
-       mov      dword ptr [rbp-0x10], ecx
+       imul     rcx, rax
+       mulx     rdx, rdx, rcx
+       mov      dword ptr [rbp-0x10], edx
        cmp      esi, 32
        jge      G_M30002_IG03
-						;; size=148 bbWeight=8 PerfScore 286.00
+						;; size=138 bbWeight=8 PerfScore 276.00
 G_M30002_IG09:
        test     esi, esi
        jle      SHORT G_M30002_IG11
 						;; size=4 bbWeight=1 PerfScore 1.25
 G_M30002_IG10:
        lea      rdx, [rbp-0x08]
        lea      rcx, [rbp-0x10]
        mov      rax, 0xD1FFAB1E      ; code for System.IO.Hashing.Adler32:UpdateScalarTail(byref,int,byref,byref)
        call     [rax]System.IO.Hashing.Adler32:UpdateScalarTail(byref,int,byref,byref)
 						;; size=20 bbWeight=0.50 PerfScore 2.12
 G_M30002_IG11:
        mov      eax, dword ptr [rbp-0x10]
        shl      eax, 16
        or       eax, dword ptr [rbp-0x08]
 						;; size=9 bbWeight=1 PerfScore 2.50
 G_M30002_IG12:
        vzeroupper 
        add      rsp, 16
        pop      rbp
        ret      
 						;; size=9 bbWeight=1 PerfScore 2.75
 RWD00  	dq	191A1B1C1D1E1F20h, 1112131415161718h, 090A0B0C0D0E0F10h, 0102030405060708h
 RWD32  	dd	00010001h		; 9.18369e-41
 
 
-; Total bytes of code 325, prolog size 10, PerfScore 1445.88, instruction count 87, allocated bytes for code 325 (MethodHash=83aa8acd) for method System.IO.Hashing.Adler32:UpdateVector256(uint,System.ReadOnlySpan`1[byte]):uint (FullOpts)
+; Total bytes of code 315, prolog size 10, PerfScore 1435.88, instruction count 82, allocated bytes for code 315 (MethodHash=83aa8acd) for method System.IO.Hashing.Adler32:UpdateVector256(uint,System.ReadOnlySpan`1[byte]):uint (FullOpts)
 ; ============================================================

-10 (-2.17 % of base) - System.IO.Hashing.Adler32:UpdateVector512(uint,System.ReadOnlySpan`1[byte]):uint

 ; Assembly listing for method System.IO.Hashing.Adler32:UpdateVector512(uint,System.ReadOnlySpan`1[byte]):uint (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
 ; rbp based frame
 ; fully interruptible
 ; No PGO data
 ; 0 inlinees with PGO data; 7 single block inlinees; 2 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 arg0         [V00,T05] (  4,  4   )     int  ->  rdi         single-def
 ;* V01 arg1         [V01    ] (  0,  0   )  struct (16) zero-ref    multireg-arg ld-addr-op single-def <System.ReadOnlySpan`1[byte]>
-;  V02 loc0         [V02    ] (  9, 42.50)     int  ->  [rbp-0x08]  do-not-enreg[X] addr-exposed ld-addr-op
-;  V03 loc1         [V03    ] (  9, 42.50)     int  ->  [rbp-0x10]  do-not-enreg[X] addr-exposed ld-addr-op
+;  V02 loc0         [V02    ] (  8, 34.50)     int  ->  [rbp-0x08]  do-not-enreg[X] addr-exposed ld-addr-op
+;  V03 loc1         [V03    ] (  8, 34.50)     int  ->  [rbp-0x10]  do-not-enreg[X] addr-exposed ld-addr-op
 ;  V04 loc2         [V04,T02] (  6,194   )   byref  ->  rsi        
 ;  V05 loc3         [V05,T03] ( 10, 37.50)     int  ->  rax        
 ;  V06 loc4         [V06,T16] (  2, 65   )  simd64  ->  mm1         single-def <System.Runtime.Intrinsics.Vector512`1[sbyte]>
 ;* V07 loc5         [V07    ] (  0,  0   )     int  ->  zero-ref   
 ;  V08 loc6         [V08,T01] (  5,208   )     int  ->  rdx        
 ;  V09 loc7         [V09,T14] (  5,152   )  simd64  ->  registers   <System.Runtime.Intrinsics.Vector512`1[uint]>
 ;  V10 loc8         [V10,T09] (  9,296   )  simd64  ->  mm4         <System.Runtime.Intrinsics.Vector512`1[uint]>
 ;  V11 loc9         [V11,T15] (  4,144   )  simd64  ->  mm5         <System.Runtime.Intrinsics.Vector512`1[uint]>
 ;  V12 loc10        [V12,T10] (  4,256   )  simd64  ->  mm6         <System.Runtime.Intrinsics.Vector512`1[byte]>
 ;  V13 loc11        [V13,T12] (  3,192   )  simd64  ->  mm3         <System.Runtime.Intrinsics.Vector512`1[uint]>
 ;* V14 loc12        [V14    ] (  0,  0   )  simd32  ->  zero-ref    <System.Runtime.Intrinsics.Vector256`1[uint]>
 ;# V15 OutArgs      [V15    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
 ;* V16 tmp1         [V16    ] (  0,  0   )  simd64  ->  zero-ref    "spilled call-like call argument"
 ;  V17 tmp2         [V17,T00] (  2,256   )     int  ->  rdx         "dup spill"
 ;  V18 tmp3         [V18,T18] (  3, 48   )  simd32  ->  mm3         "fgMakeTemp is creating a new local variable"
 ;  V19 tmp4         [V19,T19] (  3, 48   )  simd16  ->  mm3         "fgMakeTemp is creating a new local variable"
 ;  V20 tmp5         [V20,T20] (  3, 48   )  simd32  ->  mm3         "fgMakeTemp is creating a new local variable"
 ;  V21 tmp6         [V21,T21] (  3, 48   )  simd16  ->  mm3         "fgMakeTemp is creating a new local variable"
 ;  V22 tmp7         [V22,T22] (  3, 48   )  simd16  ->  mm3         "fgMakeTemp is creating a new local variable"
 ;  V23 tmp8         [V23,T08] (  2,  2   )     int  ->  rdi         "impAppendStmt"
 ;* V24 tmp9         [V24    ] (  0,  0   )  struct (16) zero-ref    "spilled call-like call argument" <System.ReadOnlySpan`1[byte]>
 ;* V25 tmp10        [V25    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "Inlining Arg" <System.ReadOnlySpan`1[byte]>
 ;  V26 tmp11        [V26,T04] (  3, 12   )     int  ->  rdx         "Inline return value spill temp"
 ;  V27 tmp12        [V27,T11] (  2,256   )  simd32  ->  mm3         "Inlining Arg" <System.Runtime.Intrinsics.Vector256`1[uint]>
 ;  V28 tmp13        [V28,T13] (  3,192   )  simd64  ->  mm0         must-init ld-addr-op "Inline ldloca(s) first use temp" <System.Runtime.Intrinsics.Vector512`1[uint]>
 ;* V29 tmp14        [V29    ] (  0,  0   )  struct (16) zero-ref    multireg-arg ld-addr-op "NewObj constructor temp" <System.ReadOnlySpan`1[byte]>
 ;  V30 tmp15        [V30,T06] (  2,  2   )   byref  ->  rsi         single-def "field V01._reference (fldOffset=0x0)" P-INDEP
 ;  V31 tmp16        [V31,T07] (  2,  2   )     int  ->  rdx         single-def "field V01._length (fldOffset=0x8)" P-INDEP
 ;* V32 tmp17        [V32    ] (  0,  0   )   byref  ->  zero-ref    "field V24._reference (fldOffset=0x0)" P-INDEP
 ;* V33 tmp18        [V33    ] (  0,  0   )     int  ->  zero-ref    "field V24._length (fldOffset=0x8)" P-INDEP
 ;* V34 tmp19        [V34    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V25._reference (fldOffset=0x0)" P-INDEP
 ;* V35 tmp20        [V35    ] (  0,  0   )     int  ->  zero-ref    "field V25._length (fldOffset=0x8)" P-INDEP
 ;* V36 tmp21        [V36    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V29._reference (fldOffset=0x0)" P-INDEP
 ;* V37 tmp22        [V37    ] (  0,  0   )     int  ->  zero-ref    single-def "field V29._length (fldOffset=0x8)" P-INDEP
 ;  V38 cse0         [V38,T17] (  2, 65   )  simd64  ->  mm2         hoist "CSE #01: aggressive"
 ;
 ; Lcl frame size = 16
 
 G_M56789_IG01:
        push     rbp
        sub      rsp, 16
        lea      rbp, [rsp+0x10]
        vxorps   xmm0, xmm0, xmm0
 						;; size=14 bbWeight=1 PerfScore 2.08
 G_M56789_IG02:
        movzx    rcx, di
        mov      dword ptr [rbp-0x08], ecx
        shr      edi, 16
        movzx    rcx, di
        mov      dword ptr [rbp-0x10], ecx
        mov      eax, edx
        vbroadcastf32x8 zmm1, ymmword ptr [reloc @RWD00]
        vbroadcastss zmm2, dword ptr [reloc @RWD32]
 						;; size=37 bbWeight=1 PerfScore 15.25
 G_M56789_IG03:
        cmp      eax, 0x15B0
        jg       SHORT G_M56789_IG05
 						;; size=7 bbWeight=8 PerfScore 10.00
 G_M56789_IG04:
        mov      edx, eax
        jmp      SHORT G_M56789_IG06
        align    [0 bytes for IG07]
 						;; size=4 bbWeight=2 PerfScore 4.50
 G_M56789_IG05:
        mov      edx, 0x15B0
 						;; size=5 bbWeight=2 PerfScore 0.50
 G_M56789_IG06:
        shr      edx, 6
        mov      ecx, edx
        shl      ecx, 6
        sub      eax, ecx
        vmovd    xmm3, dword ptr [rbp-0x08]
        vmovd    xmm4, dword ptr [rbp-0x10]
        vxorps   ymm5, ymm5, ymm5
 						;; size=24 bbWeight=8 PerfScore 78.67
 G_M56789_IG07:
        vmovups  zmm6, zmmword ptr [rsi]
        add      rsi, 64
        vxorps   ymm7, ymm7, ymm7
        vpsadbw  zmm7, zmm6, zmm7
        vpaddd   zmm7, zmm7, zmm3
        vpaddd   zmm5, zmm5, zmm3
        vpmaddubsw zmm3, zmm6, zmm1
        vpmaddwd zmm3, zmm3, zmm2
        vpaddd   zmm4, zmm3, zmm4
        vxorps   ymm3, ymm3, ymm3
        vpsadbw  ymm3, ymm6, ymm3
        vpslld   ymm3, ymm3, 5
        vinsertf32x8 zmm0, zmm0, ymm3, 0
        vxorps   ymm3, ymm3, ymm3
        vinsertf32x8 zmm0, zmm0, ymm3, 1
        vpaddd   zmm4, zmm4, zmm0
        dec      edx
        test     edx, edx
        vmovaps  zmm3, zmm7
        jg       SHORT G_M56789_IG07
 						;; size=99 bbWeight=64 PerfScore 1749.33
 G_M56789_IG08:
        vpslld   zmm5, zmm5, 6
        vpaddd   zmm4, zmm5, zmm4
        vmovaps  zmm5, zmm3
        vextracti64x4 ymm3, zmm3, 1
        vpaddq   ymm3, ymm3, ymm5
        vmovaps  ymm5, ymm3
        vextracti128 xmm3, ymm3
        vpaddq   xmm3, xmm3, xmm5
        vpsrldq  xmm5, xmm3, 8
        vpaddq   xmm3, xmm5, xmm3
        vmovq    rdx, xmm3
        mov      dword ptr [rbp-0x08], edx
        vmovaps  zmm3, zmm4
        vextracti32x8 ymm4, zmm4, 1
        vpaddd   ymm3, ymm4, ymm3
        vmovaps  ymm4, ymm3
        vextracti128 xmm3, ymm3
        vpaddd   xmm3, xmm3, xmm4
        vpsrldq  xmm4, xmm3, 8
        vpaddd   xmm3, xmm4, xmm3
        vpsrldq  xmm4, xmm3, 4
        vpaddd   xmm3, xmm4, xmm3
        vmovd    edx, xmm3
        mov      dword ptr [rbp-0x10], edx
-       mov      edx, 0xD1FFAB1E
+       mov      edx, 0xFFF1
        mov      ecx, dword ptr [rbp-0x08]
-       imul     rdx, rcx
-       shr      rdx, 47
-       imul     edx, edx, 0xFFF1
-       mov      ecx, dword ptr [rbp-0x08]
-       sub      ecx, edx
-       mov      dword ptr [rbp-0x08], ecx
-       mov      edx, 0xD1FFAB1E
+       mov      rdi, 0xD1FFAB1E
+       imul     rcx, rdi
+       mulx     rdx, rdx, rcx
+       mov      dword ptr [rbp-0x08], edx
+       mov      edx, 0xFFF1
        mov      ecx, dword ptr [rbp-0x10]
-       imul     rdx, rcx
-       shr      rdx, 47
-       imul     edx, edx, 0xFFF1
-       mov      ecx, dword ptr [rbp-0x10]
-       sub      ecx, edx
-       mov      dword ptr [rbp-0x10], ecx
+       imul     rcx, rdi
+       mulx     rdx, rdx, rcx
+       mov      dword ptr [rbp-0x10], edx
        cmp      eax, 64
        jge      G_M56789_IG03
-						;; size=186 bbWeight=8 PerfScore 327.33
+						;; size=176 bbWeight=8 PerfScore 317.33
 G_M56789_IG09:
        cmp      eax, 32
        jge      SHORT G_M56789_IG13
 						;; size=5 bbWeight=1 PerfScore 1.25
 G_M56789_IG10:
        test     eax, eax
        jle      SHORT G_M56789_IG11
        lea      rdx, [rbp-0x08]
        lea      rcx, [rbp-0x10]
        mov      rdi, rsi
        mov      esi, eax
        mov      rax, 0xD1FFAB1E      ; code for System.IO.Hashing.Adler32:UpdateScalarTail(byref,int,byref,byref)
        call     [rax]System.IO.Hashing.Adler32:UpdateScalarTail(byref,int,byref,byref)
 						;; size=29 bbWeight=0.50 PerfScore 3.00
 G_M56789_IG11:
        mov      eax, dword ptr [rbp-0x10]
        shl      eax, 16
        or       eax, dword ptr [rbp-0x08]
 						;; size=9 bbWeight=0.50 PerfScore 1.25
 G_M56789_IG12:
        vzeroupper 
        add      rsp, 16
        pop      rbp
        ret      
 						;; size=9 bbWeight=0.50 PerfScore 1.38
 G_M56789_IG13:
        mov      edi, dword ptr [rbp-0x10]
        shl      edi, 16
        or       edi, dword ptr [rbp-0x08]
        mov      edx, eax
        mov      rax, 0xD1FFAB1E      ; code for System.IO.Hashing.Adler32:UpdateVector256(uint,System.ReadOnlySpan`1[byte]):uint
        call     [rax]System.IO.Hashing.Adler32:UpdateVector256(uint,System.ReadOnlySpan`1[byte]):uint
        nop      
 						;; size=24 bbWeight=0.50 PerfScore 3.12
 G_M56789_IG14:
        vzeroupper 
        add      rsp, 16
        pop      rbp
        ret      
 						;; size=9 bbWeight=0.50 PerfScore 1.38
 RWD00  	dq	191A1B1C1D1E1F20h, 1112131415161718h, 090A0B0C0D0E0F10h, 0102030405060708h
 RWD32  	dd	00010001h		; 9.18369e-41
 
 
-; Total bytes of code 461, prolog size 14, PerfScore 2199.04, instruction count 115, allocated bytes for code 461 (MethodHash=6d43222a) for method System.IO.Hashing.Adler32:UpdateVector512(uint,System.ReadOnlySpan`1[byte]):uint (FullOpts)
+; Total bytes of code 451, prolog size 14, PerfScore 2189.04, instruction count 110, allocated bytes for code 451 (MethodHash=6d43222a) for method System.IO.Hashing.Adler32:UpdateVector512(uint,System.ReadOnlySpan`1[byte]):uint (FullOpts)
 ; ============================================================

-6 (-4.14 % of base) - System.IO.Hashing.Adler32:UpdateScalar(uint,System.ReadOnlySpan`1[byte]):uint

 ; Assembly listing for method System.IO.Hashing.Adler32:UpdateScalar(uint,System.ReadOnlySpan`1[byte]):uint (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
 ; rbp based frame
 ; fully interruptible
 ; No PGO data
 ; 0 inlinees with PGO data; 2 single block inlinees; 2 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 arg0         [V00,T12] (  4,  4   )     int  ->  rdi         single-def
 ;* V01 arg1         [V01    ] (  0,  0   )  struct (16) zero-ref    multireg-arg ld-addr-op single-def <System.ReadOnlySpan`1[byte]>
-;  V02 loc0         [V02,T00] (  8, 73.52)     int  ->  rax        
-;  V03 loc1         [V03,T03] (  7, 57.68)     int  ->  rcx        
-;  V04 loc2         [V04,T02] (  6, 55.84)     int  ->  rdi        
+;  V02 loc0         [V02,T01] (  7, 65.52)     int  ->  rcx        
+;  V03 loc1         [V03,T03] (  6, 49.68)     int  ->  rdi        
+;  V04 loc2         [V04,T02] (  6, 55.84)     int  ->   r8        
 ;* V05 loc3         [V05    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op <System.ReadOnlySpan`1[byte]>
 ;* V06 loc4         [V06,T10] (  0,  0   )     int  ->  zero-ref   
 ;* V07 loc5         [V07    ] (  0,  0   )   ubyte  ->  zero-ref   
 ;# V08 OutArgs      [V08    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
-;  V09 tmp1         [V09,T08] (  3, 12   )     int  ->  rdi        
+;  V09 tmp1         [V09,T08] (  3, 12   )     int  ->   r8        
 ;* V10 tmp2         [V10    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "NewObj constructor temp" <System.ReadOnlySpan`1[byte]>
 ;* V11 tmp3         [V11    ] (  0,  0   )   byref  ->  zero-ref    "Inlining Arg"
 ;* V12 tmp4         [V12    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "NewObj constructor temp" <System.ReadOnlySpan`1[byte]>
 ;  V13 tmp5         [V13,T06] (  2, 32   )   byref  ->  rsi         "Inlining Arg"
-;  V14 tmp6         [V14,T07] (  2, 32   )     int  ->  rdx         "Inlining Arg"
+;  V14 tmp6         [V14,T07] (  2, 32   )     int  ->  rax         "Inlining Arg"
 ;  V15 tmp7         [V15,T05] (  4, 32.84)   byref  ->  rsi         "field V01._reference (fldOffset=0x0)" P-INDEP
-;  V16 tmp8         [V16,T04] (  7, 43   )     int  ->  rdx         "field V01._length (fldOffset=0x8)" P-INDEP
+;  V16 tmp8         [V16,T04] (  7, 43   )     int  ->  rax         "field V01._length (fldOffset=0x8)" P-INDEP
 ;* V17 tmp9         [V17,T09] (  0,  0   )   byref  ->  zero-ref    "field V05._reference (fldOffset=0x0)" P-INDEP
 ;* V18 tmp10        [V18,T11] (  0,  0   )     int  ->  zero-ref    "field V05._length (fldOffset=0x8)" P-INDEP
 ;* V19 tmp11        [V19    ] (  0,  0   )   byref  ->  zero-ref    "field V10._reference (fldOffset=0x0)" P-INDEP
 ;* V20 tmp12        [V20    ] (  0,  0   )     int  ->  zero-ref    "field V10._length (fldOffset=0x8)" P-INDEP
 ;* V21 tmp13        [V21    ] (  0,  0   )   byref  ->  zero-ref    "field V12._reference (fldOffset=0x0)" P-INDEP
 ;* V22 tmp14        [V22    ] (  0,  0   )     int  ->  zero-ref    "field V12._length (fldOffset=0x8)" P-INDEP
-;  V23 rat0         [V23,T01] (  5, 71.36)    long  ->   r8         "Widened IV V06"
+;  V23 rat0         [V23,T00] (  5, 71.36)    long  ->  rdx         "Widened IV V06"
 ;
 ; Lcl frame size = 0
 
 G_M62964_IG01:
        push     rbp
        mov      rbp, rsp
-						;; size=4 bbWeight=1 PerfScore 1.25
+       mov      eax, edx
+						;; size=6 bbWeight=1 PerfScore 1.50
 G_M62964_IG02:
-       movzx    rax, di
-       shr      edi, 16
        movzx    rcx, di
+       shr      edi, 16
+       movzx    rdi, di
 						;; size=9 bbWeight=1 PerfScore 1.00
 G_M62964_IG03:
-       cmp      edx, 0x15B0
+       cmp      eax, 0x15B0
        jge      SHORT G_M62964_IG05
-						;; size=8 bbWeight=8 PerfScore 10.00
+						;; size=7 bbWeight=8 PerfScore 10.00
 G_M62964_IG04:
-       mov      edi, edx
+       mov      r8d, eax
        jmp      SHORT G_M62964_IG06
        align    [0 bytes for IG07]
-						;; size=4 bbWeight=2 PerfScore 4.50
+						;; size=5 bbWeight=2 PerfScore 4.50
 G_M62964_IG05:
-       mov      edi, 0x15B0
-						;; size=5 bbWeight=2 PerfScore 0.50
+       mov      r8d, 0x15B0
+						;; size=6 bbWeight=2 PerfScore 0.50
 G_M62964_IG06:
-       cmp      edi, edx
+       cmp      r8d, eax
        ja       SHORT G_M62964_IG11
-       xor      r8d, r8d
-       test     edi, edi
+       xor      edx, edx
+       test     r8d, r8d
        jle      SHORT G_M62964_IG08
-						;; size=11 bbWeight=8 PerfScore 22.00
+						;; size=12 bbWeight=8 PerfScore 22.00
 G_M62964_IG07:
-       movzx    r9, byte  ptr [rsi+r8]
-       add      eax, r9d
-       add      ecx, eax
-       inc      r8d
-       cmp      r8d, edi
+       movzx    r9, byte  ptr [rsi+rdx]
+       add      ecx, r9d
+       add      edi, ecx
+       inc      edx
+       cmp      edx, r8d
        jl       SHORT G_M62964_IG07
-						;; size=18 bbWeight=15.84 PerfScore 63.36
+						;; size=17 bbWeight=15.84 PerfScore 63.36
 G_M62964_IG08:
-       mov      r8d, 0xD1FFAB1E
-       mov      r9d, eax
-       imul     r8, r9
-       shr      r8, 47
-       imul     r8d, r8d, 0xFFF1
+       mov      edx, 0xFFF1
+       mov      ecx, ecx
+       mov      r9, 0xD1FFAB1E
+       imul     rcx, r9
+       mulx     rcx, rcx, rcx
+       mov      edx, 0xFFF1
+       mov      edi, edi
+       imul     rdi, r9
+       mulx     rdi, rdi, rdi
+       mov      edx, r8d
+       add      rsi, rdx
        sub      eax, r8d
-       mov      r8d, 0xD1FFAB1E
-       mov      r9d, ecx
-       imul     r8, r9
-       shr      r8, 47
-       imul     r8d, r8d, 0xFFF1
-       sub      ecx, r8d
-       mov      r8d, edi
-       add      rsi, r8
-       sub      edx, edi
-       test     edx, edx
+       test     eax, eax
        jg       SHORT G_M62964_IG03
-						;; size=66 bbWeight=8 PerfScore 100.00
+						;; size=55 bbWeight=8 PerfScore 106.00
 G_M62964_IG09:
-       shl      ecx, 16
+       mov      eax, edi
+       shl      eax, 16
        or       eax, ecx
-						;; size=5 bbWeight=1 PerfScore 0.75
+						;; size=7 bbWeight=1 PerfScore 1.00
 G_M62964_IG10:
        pop      rbp
        ret      
 						;; size=2 bbWeight=1 PerfScore 1.50
 G_M62964_IG11:
        mov      rax, 0xD1FFAB1E      ; code for System.ThrowHelper:ThrowArgumentOutOfRangeException()
        call     [rax]System.ThrowHelper:ThrowArgumentOutOfRangeException()
        int3     
 						;; size=13 bbWeight=0 PerfScore 0.00
 
-; Total bytes of code 145, prolog size 4, PerfScore 204.86, instruction count 46, allocated bytes for code 145 (MethodHash=2f5c0a0b) for method System.IO.Hashing.Adler32:UpdateScalar(uint,System.ReadOnlySpan`1[byte]):uint (FullOpts)
+; Total bytes of code 139, prolog size 6, PerfScore 211.36, instruction count 45, allocated bytes for code 139 (MethodHash=2f5c0a0b) for method System.IO.Hashing.Adler32:UpdateScalar(uint,System.ReadOnlySpan`1[byte]):uint (FullOpts)
 ; ============================================================

-4 (-5.26 % of base) - System.TimeOnly:Deconstruct(byref,byref):this

 ; Assembly listing for method System.TimeOnly:Deconstruct(byref,byref):this (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
 ; rsp based frame
 ; partially interruptible
 ; No PGO data
 ; 0 inlinees with PGO data; 2 single block inlinees; 0 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 this         [V00,T00] (  4,  4   )   byref  ->  rdi         this single-def
-;  V01 arg1         [V01,T02] (  3,  3   )   byref  ->  rsi         single-def
-;  V02 arg2         [V02,T03] (  3,  3   )   byref  ->  [rsp+0x00]  single-def
+;  V01 arg1         [V01,T01] (  3,  3   )   byref  ->  rsi         single-def
+;  V02 arg2         [V02,T02] (  3,  3   )   byref  ->  rax         single-def
 ;# V03 OutArgs      [V03    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
-;  V04 rat0         [V04,T01] (  3,  6   )     int  ->  rax         "ReplaceWithLclVar is creating a new local variable"
 ;
-; Lcl frame size = 8
+; Lcl frame size = 0
 
 G_M22127_IG01:
-       push     rax
-       mov      bword ptr [rsp], rdx
-						;; size=5 bbWeight=1 PerfScore 2.00
+       mov      rax, rdx
+						;; size=3 bbWeight=1 PerfScore 0.25
 G_M22127_IG02:
        mov      rdx, 0xD1FFAB1E
        mulx     rdx, rdx, qword ptr [rdi]
        shr      rdx, 33
        mov      dword ptr [rsi], edx
        mov      rdx, 0xD1FFAB1E
-       mulx     rax, rax, qword ptr [rdi]
-       shr      rax, 29
-       mov      ecx, 0xD1FFAB1E
-       mov      edx, eax
-       imul     rcx, rdx
-       shr      rcx, 37
-       imul     ecx, ecx, 60
-       sub      eax, ecx
-       mov      rdx, bword ptr [rsp]
-       mov      dword ptr [rdx], eax
-						;; size=66 bbWeight=1 PerfScore 21.75
+       mulx     rdx, rdx, qword ptr [rdi]
+       shr      rdx, 29
+       mov      ecx, 60
+       mov      edx, edx
+       mov      rdi, 0xD1FFAB1E
+       imul     rdx, rdi
+       mulx     rcx, rcx, rcx
+       mov      dword ptr [rax], ecx
+						;; size=68 bbWeight=1 PerfScore 21.25
 G_M22127_IG03:
-       add      rsp, 8
        ret      
-						;; size=5 bbWeight=1 PerfScore 1.25
+						;; size=1 bbWeight=1 PerfScore 1.00
 
-; Total bytes of code 76, prolog size 1, PerfScore 25.00, instruction count 19, allocated bytes for code 76 (MethodHash=01bba990) for method System.TimeOnly:Deconstruct(byref,byref):this (FullOpts)
+; Total bytes of code 72, prolog size 0, PerfScore 22.50, instruction count 15, allocated bytes for code 72 (MethodHash=01bba990) for method System.TimeOnly:Deconstruct(byref,byref):this (FullOpts)
 ; ============================================================

-3 (-0.61 % of base) - System.Data.ProviderBase.DbBuffer:ReadDateTime(int):System.DateTime:this

 ; Assembly listing for method System.Data.ProviderBase.DbBuffer:ReadDateTime(int):System.DateTime:this (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
 ; rbp based frame
 ; partially interruptible
 ; No PGO data
 ; 0 inlinees with PGO data; 6 single block inlinees; 5 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 this         [V00,T04] (  4,  4   )     ref  ->  rbx         this class-hnd single-def <System.Data.ProviderBase.DbBuffer>
 ;  V01 arg1         [V01,T05] (  4,  4   )     int  ->  r15         single-def
 ;  V02 loc0         [V02,T01] (  8,  8   )     ref  ->  r14         class-hnd exact single-def <short[]>
-;  V03 loc1         [V03,T16] (  2,  2   )     int  ->  rdx         single-def
+;  V03 loc1         [V03,T16] (  2,  2   )     int  ->  rax         single-def
 ;* V04 loc2         [V04    ] (  0,  0   )  struct ( 8) zero-ref    ld-addr-op <System.DateTime>
 ;# V05 OutArgs      [V05    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
 ;* V06 tmp1         [V06    ] (  0,  0   )     ref  ->  zero-ref    class-hnd exact "NewArr temp" <short[]>
-;  V07 tmp2         [V07,T00] (  7, 11   )     int  ->  rax         "Inlining Arg"
-;  V08 tmp3         [V08,T02] (  4,  8   )     int  ->  rdi         "Inlining Arg"
-;  V09 tmp4         [V09,T03] (  4,  8   )     int  ->  rcx         "Inlining Arg"
+;  V07 tmp2         [V07,T00] (  6, 10   )     int  ->  rdi         "Inlining Arg"
+;  V08 tmp3         [V08,T02] (  4,  8   )     int  ->  rcx         "Inlining Arg"
+;  V09 tmp4         [V09,T03] (  4,  8   )     int  ->  rsi         "Inlining Arg"
 ;  V10 tmp5         [V10,T17] (  2,  2   )    long  ->  rdi         single-def "Inline stloc first use temp"
-;  V11 tmp6         [V11,T06] (  3,  6   )     int  ->   r9         "Inlining Arg"
-;  V12 tmp7         [V12,T07] (  3,  6   )     int  ->  rsi         "Inlining Arg"
-;  V13 tmp8         [V13,T08] (  3,  6   )     int  ->   r8         "Inlining Arg"
+;  V11 tmp6         [V11,T06] (  3,  6   )     int  ->  r10         "Inlining Arg"
+;  V12 tmp7         [V12,T07] (  3,  6   )     int  ->   r8         "Inlining Arg"
+;  V13 tmp8         [V13,T08] (  3,  6   )     int  ->   r9         "Inlining Arg"
 ;* V14 tmp9         [V14    ] (  0,  0   )  struct (16) zero-ref    <System.ReadOnlySpan`1[uint]>
 ;* V15 tmp10        [V15    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "Inline stloc first use temp" <System.ReadOnlySpan`1[uint]>
 ;* V16 tmp11        [V16    ] (  0,  0   )   ubyte  ->  zero-ref    "Inline return value spill temp"
 ;* V17 tmp12        [V17    ] (  0,  0   )  struct (16) zero-ref    "ReadOnlySpan<T> for CreateSpan<T>" <System.ReadOnlySpan`1[uint]>
 ;* V18 tmp13        [V18    ] (  0,  0   )  struct (16) zero-ref    "ReadOnlySpan<T> for CreateSpan<T>" <System.ReadOnlySpan`1[uint]>
-;  V19 tmp14        [V19,T09] (  3,  6   )     int  ->  rax         "dup spill"
-;  V20 tmp15        [V20,T13] (  3,  3   )     int  ->  r10         single-def "Inline stloc first use temp"
+;  V19 tmp14        [V19,T09] (  3,  6   )     int  ->  rdi         "dup spill"
+;  V20 tmp15        [V20,T13] (  3,  3   )     int  ->  rcx         single-def "Inline stloc first use temp"
 ;* V21 tmp16        [V21    ] (  0,  0   )    long  ->  zero-ref    "Inlining Arg"
 ;  V22 tmp17        [V22,T10] (  3,  6   )    long  ->  rax         "dup spill"
 ;* V23 tmp18        [V23    ] (  0,  0   )    long  ->  zero-ref    single-def
 ;* V24 tmp19        [V24    ] (  0,  0   )  struct ( 8) zero-ref    ld-addr-op "NewObj constructor temp" <System.DateTime>
 ;* V25 tmp20        [V25    ] (  0,  0   )    long  ->  zero-ref    "Inlining Arg"
 ;  V26 tmp21        [V26,T14] (  3,  3   )    long  ->  rdi         single-def "field V04._dateData (fldOffset=0x0)" P-INDEP
-;  V27 tmp22        [V27,T12] (  4,  3   )   byref  ->  r10         "field V14._reference (fldOffset=0x0)" P-INDEP
+;  V27 tmp22        [V27,T12] (  4,  3   )   byref  ->  rdx         "field V14._reference (fldOffset=0x0)" P-INDEP
 ;* V28 tmp23        [V28    ] (  0,  0   )     int  ->  zero-ref    "field V14._length (fldOffset=0x8)" P-INDEP
 ;* V29 tmp24        [V29    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V15._reference (fldOffset=0x0)" P-INDEP
 ;* V30 tmp25        [V30    ] (  0,  0   )     int  ->  zero-ref    single-def "field V15._length (fldOffset=0x8)" P-INDEP
 ;* V31 tmp26        [V31    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V17._reference (fldOffset=0x0)" P-INDEP
 ;* V32 tmp27        [V32    ] (  0,  0   )     int  ->  zero-ref    single-def "field V17._length (fldOffset=0x8)" P-INDEP
 ;* V33 tmp28        [V33    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V18._reference (fldOffset=0x0)" P-INDEP
 ;* V34 tmp29        [V34    ] (  0,  0   )     int  ->  zero-ref    single-def "field V18._length (fldOffset=0x8)" P-INDEP
 ;  V35 tmp30        [V35,T18] (  2,  2   )    long  ->  rax         single-def "field V24._dateData (fldOffset=0x0)" P-INDEP
-;  V36 cse0         [V36,T15] (  3,  3   )     int  ->  rdi         "CSE #04: moderate"
-;  V37 cse1         [V37,T19] (  2,  2   )     int  ->  rdi         "CSE #01: moderate"
+;  V36 cse0         [V36,T15] (  3,  3   )     int  ->  rdx         "CSE #04: moderate"
+;  V37 cse1         [V37,T19] (  2,  2   )     int  ->  rcx         "CSE #01: moderate"
 ;  V38 rat0         [V38,T11] (  3,  6   )     int  ->  rdx         "ReplaceWithLclVar is creating a new local variable"
 ;
 ; Lcl frame size = 8
 
 G_M12932_IG01:
        push     rbp
        push     r15
        push     r14
        push     rbx
        push     rax
        lea      rbp, [rsp+0x20]
        mov      rbx, rdi
        mov      r15d, esi
 						;; size=18 bbWeight=1 PerfScore 6.00
 G_M12932_IG02:
        mov      rdi, 0xD1FFAB1E      ; short[]
        mov      esi, 6
        call     CORINFO_HELP_NEWARR_1_VC
        mov      r14, rax
        mov      rdi, rbx
        mov      esi, r15d
        mov      rdx, r14
        xor      ecx, ecx
        mov      r8d, 6
        mov      rax, 0xD1FFAB1E      ; code for System.Data.ProviderBase.DbBuffer:ReadInt16Array(int,short[],int,int):this
        call     [rax]System.Data.ProviderBase.DbBuffer:ReadInt16Array(int,short[],int,int):this
        lea      esi, [r15+0x0C]
        mov      rdi, rbx
        mov      rax, 0xD1FFAB1E      ; code for System.Data.ProviderBase.DbBuffer:ReadInt32(int):int:this
        call     [rax]System.Data.ProviderBase.DbBuffer:ReadInt32(int):int:this
-       mov      edx, eax
-       movsx    rax, word  ptr [r14+0x10]
-       movzx    rax, ax
-       movsx    rdi, word  ptr [r14+0x12]
-       movzx    rdi, di
-       movsx    rcx, word  ptr [r14+0x14]
-       movzx    rcx, cx
-       movsx    rsi, word  ptr [r14+0x16]
-       movzx    rsi, si
-       movsx    r8, word  ptr [r14+0x18]
-       movzx    r8, r8w
-       movsx    r9, word  ptr [r14+0x1A]
-       movzx    r9, r9w
-       mov      r10d, eax
-       sub      r10d, 1
-       cmp      r10d, 0x270E
+       movsx    rdx, word  ptr [r14+0x10]
+       movzx    rdi, dx
+       movsx    rdx, word  ptr [r14+0x12]
+       movzx    rcx, dx
+       movsx    rdx, word  ptr [r14+0x14]
+       movzx    rsi, dx
+       movsx    rdx, word  ptr [r14+0x16]
+       movzx    r8, dx
+       movsx    rdx, word  ptr [r14+0x18]
+       movzx    r9, dx
+       movsx    rdx, word  ptr [r14+0x1A]
+       movzx    r10, dx
+       mov      edx, edi
+       sub      edx, 1
+       cmp      edx, 0x270E
        ja       G_M12932_IG08
-       mov      r10d, edi
-       sub      r10d, 1
-       cmp      r10d, 11
+       mov      edx, ecx
+       sub      edx, 1
+       cmp      edx, 11
        ja       G_M12932_IG08
-       test     ecx, ecx
+       test     esi, esi
        jle      G_M12932_IG08
-       test     al, 3
+       test     dil, 3
        jne      SHORT G_M12932_IG05
-						;; size=172 bbWeight=1 PerfScore 30.00
+						;; size=167 bbWeight=1 PerfScore 29.75
 G_M12932_IG03:
-       test     al, 15
+       test     dil, 15
        je       SHORT G_M12932_IG04
-       mov      r10d, eax
-       imul     r10, r10, 0xD1FFAB1E
-       shr      r10, 35
-       imul     r10d, r10d, 25
-       mov      r11d, eax
-       sub      r11d, r10d
+       mov      edx, 25
+       mov      r11d, edi
+       mov      rbx, 0xD1FFAB1E
+       imul     r11, rbx
+       mulx     rdx, rdx, r11
+       test     edx, edx
        je       SHORT G_M12932_IG05
-						;; size=30 bbWeight=0.50 PerfScore 3.75
+						;; size=37 bbWeight=0.50 PerfScore 4.12
 G_M12932_IG04:
-       mov      r10, 0xD1FFAB1E      ; static handle
+       mov      rdx, 0xD1FFAB1E      ; static handle
        jmp      SHORT G_M12932_IG06
 						;; size=12 bbWeight=0.50 PerfScore 1.12
 G_M12932_IG05:
-       mov      r10, 0xD1FFAB1E      ; static handle
+       mov      rdx, 0xD1FFAB1E      ; static handle
 						;; size=10 bbWeight=0.50 PerfScore 0.12
 G_M12932_IG06:
-       mov      r11d, edi
-       mov      r11d, dword ptr [r10+4*r11]
-       dec      edi
-       mov      edi, dword ptr [r10+4*rdi]
-       sub      r11d, edi
-       cmp      r11d, ecx
+       mov      r11d, ecx
+       mov      r11d, dword ptr [rdx+4*r11]
+       dec      ecx
+       mov      edx, dword ptr [rdx+4*rcx]
+       sub      r11d, edx
+       cmp      r11d, esi
        jb       G_M12932_IG08
-       dec      eax
-       mov      r10d, eax
-       imul     r10, r10, 0xD1FFAB1E
-       shr      r10, 37
-       imul     eax, eax, 0x5B5
-       shr      eax, 2
-       sub      eax, r10d
-       shr      r10d, 2
-       add      eax, r10d
-       add      eax, edi
-       lea      eax, [rax+rcx-0x01]
-       mov      edi, eax
+       dec      edi
+       mov      ecx, edi
+       imul     rcx, rcx, 0xD1FFAB1E
+       shr      rcx, 37
+       imul     edi, edi, 0x5B5
+       shr      edi, 2
+       sub      edi, ecx
+       shr      ecx, 2
+       add      edi, ecx
+       add      edx, edi
+       lea      edx, [rdx+rsi-0x01]
+       mov      edi, edx
        mov      rcx, 0xD1FFAB1E
        imul     rdi, rcx
-       cmp      esi, 24
+       cmp      r8d, 24
        jae      G_M12932_IG09
-       cmp      r8d, 60
-       jae      SHORT G_M12932_IG09
        cmp      r9d, 60
        jae      SHORT G_M12932_IG09
-       imul     eax, esi, 0xE10
-       imul     ecx, r8d, 60
-       add      eax, ecx
-       add      eax, r9d
-       imul     rcx, rax, 0xD1FFAB1E
+       cmp      r10d, 60
+       jae      SHORT G_M12932_IG09
+       imul     edx, r8d, 0xE10
+       imul     ecx, r9d, 60
+       add      edx, ecx
+       add      edx, r10d
+       imul     rcx, rdx, 0xD1FFAB1E
        add      rdi, rcx
-       mov      ecx, 0xD1FFAB1E
-       mov      eax, ecx
+       mov      edx, 0xD1FFAB1E
        imul     edx:eax, edx
        mov      eax, edx
        shr      eax, 31
        sar      edx, 5
        add      eax, edx
        cdqe     
        mov      rcx, 0xD1FFAB1E
        and      rcx, rdi
        add      rax, rcx
        mov      rcx, 0xD1FFAB1E
        cmp      rax, rcx
        ja       SHORT G_M12932_IG10
        mov      rcx, 0xD1FFAB1E
        and      rdi, rcx
        or       rax, rdi
-						;; size=196 bbWeight=1 PerfScore 35.00
+						;; size=191 bbWeight=1 PerfScore 34.75
 G_M12932_IG07:
        add      rsp, 8
        pop      rbx
        pop      r14
        pop      r15
        pop      rbp
        ret      
 						;; size=11 bbWeight=1 PerfScore 3.25
 G_M12932_IG08:
        mov      rax, 0xD1FFAB1E      ; code for System.ThrowHelper:ThrowArgumentOutOfRange_BadYearMonthDay()
        call     [rax]System.ThrowHelper:ThrowArgumentOutOfRange_BadYearMonthDay()
        int3     
 						;; size=13 bbWeight=0 PerfScore 0.00
 G_M12932_IG09:
        mov      rax, 0xD1FFAB1E      ; code for System.ThrowHelper:ThrowArgumentOutOfRange_BadHourMinuteSecond()
        call     [rax]System.ThrowHelper:ThrowArgumentOutOfRange_BadHourMinuteSecond()
        int3     
 						;; size=13 bbWeight=0 PerfScore 0.00
 G_M12932_IG10:
        xor      edi, edi
        mov      rax, 0xD1FFAB1E      ; code for System.DateTime:ThrowDateArithmetic(int)
        call     [rax]System.DateTime:ThrowDateArithmetic(int)
        int3     
 						;; size=15 bbWeight=0 PerfScore 0.00
 
-; Total bytes of code 490, prolog size 12, PerfScore 79.25, instruction count 126, allocated bytes for code 490 (MethodHash=0af2cd7b) for method System.Data.ProviderBase.DbBuffer:ReadDateTime(int):System.DateTime:this (FullOpts)
+; Total bytes of code 487, prolog size 12, PerfScore 79.12, instruction count 124, allocated bytes for code 487 (MethodHash=0af2cd7b) for method System.Data.ProviderBase.DbBuffer:ReadDateTime(int):System.DateTime:this (FullOpts)
 ; ============================================================

Note: some changes were skipped as they were too large to fit into a comment.

Larger list of diffs: https://gist.github.com/MihuBot/238047227685d3bccb5b2fe7ef6c5268

[MihuBot]

@MihaZupan