[JitDiff X64] [EgorBo] constant fold string.concat

[MihuBot]

Job completed in 4 minutes 10 seconds (remote runner delay: 0 seconds).
dotnet/runtime#127655

Main commit: dotnet/runtime@0a017ff
PR commit: EgorBo/runtime-1@755b3c9

Diffs

Diffs

Found 135 files with textual diffs.

Summary of Code Size diffs:
(Lower is better)

Total bytes of base: 46277564
Total bytes of diff: 46278143
Total bytes of delta: 579 (0.00 % of base)
Total relative delta: 22.92
    diff is a regression.
    relative diff is a regression.


Top file regressions (bytes):
         354 : ILCompiler.Reflection.ReadyToRun.dasm (0.11 % of base)
          55 : System.Linq.Expressions.dasm (0.01 % of base)
          54 : System.Data.Common.dasm (0.00 % of base)
          46 : System.Diagnostics.DiagnosticSource.dasm (0.01 % of base)
          32 : System.Reflection.MetadataLoadContext.dasm (0.01 % of base)
          31 : System.Private.Xml.dasm (0.00 % of base)
          22 : System.Net.Requests.dasm (0.01 % of base)
          19 : System.Net.Mail.dasm (0.01 % of base)
          16 : System.Net.Http.dasm (0.00 % of base)
          15 : System.Configuration.ConfigurationManager.dasm (0.00 % of base)
          14 : System.Net.Primitives.dasm (0.01 % of base)
          14 : System.Composition.Runtime.dasm (0.08 % of base)
          14 : System.Net.Quic.dasm (0.01 % of base)
          13 : System.Diagnostics.Process.dasm (0.01 % of base)
          13 : System.Reflection.Context.dasm (0.02 % of base)
          12 : System.ComponentModel.Annotations.dasm (0.02 % of base)
          12 : System.Private.DataContractSerialization.dasm (0.00 % of base)
          11 : System.ServiceModel.Syndication.dasm (0.01 % of base)
          10 : System.Private.Xml.Linq.dasm (0.00 % of base)
          10 : System.Security.Cryptography.Cose.dasm (0.01 % of base)
           8 : System.ComponentModel.Composition.dasm (0.00 % of base)
           8 : System.Threading.Channels.dasm (0.00 % of base)
           7 : System.CodeDom.dasm (0.00 % of base)
           6 : System.Reflection.Metadata.dasm (0.00 % of base)
           6 : Microsoft.Extensions.DependencyModel.dasm (0.01 % of base)
           6 : System.IO.Packaging.dasm (0.01 % of base)
           6 : System.Security.Claims.dasm (0.03 % of base)
           5 : System.ComponentModel.TypeConverter.dasm (0.00 % of base)
           3 : System.Net.Sockets.dasm (0.00 % of base)
           3 : System.Net.Security.dasm (0.00 % of base)
           3 : System.Security.Cryptography.dasm (0.00 % of base)
           2 : System.Reflection.Emit.dasm (0.00 % of base)
           2 : System.Web.HttpUtility.dasm (0.01 % of base)
           2 : System.ComponentModel.Primitives.dasm (0.01 % of base)
           2 : System.Composition.Hosting.dasm (0.00 % of base)
           2 : System.IO.FileSystem.Watcher.dasm (0.01 % of base)
           1 : System.Data.Odbc.dasm (0.00 % of base)
           1 : System.Transactions.Local.dasm (0.00 % of base)
           1 : System.Security.Cryptography.Xml.dasm (0.00 % of base)
           1 : System.Resources.Extensions.dasm (0.00 % of base)
           1 : System.Net.WebSockets.dasm (0.00 % of base)
           1 : Microsoft.Extensions.Hosting.dasm (0.00 % of base)
           1 : System.Text.Json.dasm (0.00 % of base)
           1 : System.Runtime.Serialization.Schema.dasm (0.00 % of base)
           1 : System.Net.NameResolution.dasm (0.00 % of base)
           1 : System.Formats.Tar.dasm (0.00 % of base)

Top file improvements (bytes):
        -209 : Microsoft.VisualBasic.Core.dasm (-0.04 % of base)
         -51 : System.Private.CoreLib.dasm (-0.00 % of base)
          -7 : Microsoft.Extensions.FileSystemGlobbing.dasm (-0.02 % of base)
          -1 : System.Net.HttpListener.dasm (-0.00 % of base)
          -1 : System.Console.dasm (-0.00 % of base)

51 total files with Code Size differences (5 improved, 46 regressed), 209 unchanged.

Top method regressions (bytes):
          62 (1.45 % of base) : System.Private.Xml.dasm - System.Xml.Serialization.XmlSerializationWriterCodeGen:WriteArrayItems(System.Xml.Serialization.ElementAccessor[],System.Xml.Serialization.TextAccessor,System.Xml.Serialization.ChoiceIdentifierAccessor,System.Xml.Serialization.TypeDesc,System.String,System.String):this (FullOpts)
          22 (0.73 % of base) : System.Diagnostics.DiagnosticSource.dasm - System.Diagnostics.Metrics.MetricsEventSource+CommandHandler:OnEventCommand(System.Diagnostics.Tracing.EventCommandEventArgs):this (FullOpts)
          19 (17.27 % of base) : System.Private.Xml.dasm - System.Xml.Serialization.ReflectionAwareCodeGen:GetStringForMethod(System.String,System.String,System.String,bool):System.String:this (FullOpts)
          18 (28.57 % of base) : System.Data.Common.dasm - System.Data.DataTable:ToString():System.String:this (FullOpts)
          18 (28.12 % of base) : System.Data.Common.dasm - System.Data.SimpleType:QualifiedName(System.String):System.String (FullOpts)
          18 (28.12 % of base) : System.Data.Common.dasm - System.Data.XSDSchema:QualifiedName(System.String):System.String (FullOpts)
          18 (37.50 % of base) : System.Net.Requests.dasm - System.Net.ServicePointManager:MakeQueryString(System.Uri,bool):System.String (FullOpts)
          13 (11.82 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[byte]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
          13 (11.82 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[double]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
          13 (11.82 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[int]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
          13 (11.82 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[long]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
          13 (11.82 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[short]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
          13 (11.82 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.__Canon]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
          13 (11.82 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.Nullable`1[int]]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
          13 (11.82 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.Numerics.Vector`1[float]]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
          13 (20.31 % of base) : Microsoft.VisualBasic.Core.dasm - Microsoft.VisualBasic.CompilerServices.VB6File:GetQuotedString(System.String):System.String:this (FullOpts)
          13 (26.53 % of base) : System.Composition.Runtime.dasm - System.Composition.Hosting.Core.CompositionContract+<>c:<ToString>b__14_0(System.Collections.Generic.KeyValuePair`2[System.String,System.Object]):System.String:this (FullOpts)
          13 (16.88 % of base) : System.Diagnostics.DiagnosticSource.dasm - System.Diagnostics.Activity:get_DebuggerDisplayString():System.String:this (FullOpts)
          13 (21.67 % of base) : System.Diagnostics.Process.dasm - System.Diagnostics.ProcessModule:ToString():System.String:this (FullOpts)
          13 (20.31 % of base) : System.Net.Primitives.dasm - System.Net.Cache.RequestCachePolicy:ToString():System.String:this (FullOpts)
          13 (20.63 % of base) : System.Net.Quic.dasm - System.Net.Quic.ThrowHelper:GetErrorMessageForStatus(int,System.String):System.String (FullOpts)
          10 (22.22 % of base) : System.Private.Xml.dasm - MS.Internal.Xml.XPath.ExtensionQuery:get_QName():System.String:this (FullOpts)
          10 (28.57 % of base) : System.Data.Common.dasm - System.Data.NewDiffgramGen:QualifiedName(System.String,System.String):System.String (FullOpts)
          10 (22.22 % of base) : System.Data.Common.dasm - System.Data.SimpleType:get_SimpleTypeQualifiedName():System.String:this (FullOpts)
          10 (24.39 % of base) : System.Diagnostics.DiagnosticSource.dasm - System.Diagnostics.Metrics.MetricsEventSource+MetricSpec:ToString():System.String:this (FullOpts)
          10 (26.32 % of base) : System.Net.Http.dasm - System.Net.Http.Headers.EntityTagHeaderValue:ToString():System.String:this (FullOpts)
          10 (27.78 % of base) : System.Reflection.MetadataLoadContext.dasm - System.Reflection.TypeLoading.Helpers:AppendTypeName(System.String,System.String):System.String (FullOpts)
          10 (20.00 % of base) : System.Security.Cryptography.Cose.dasm - System.Security.Cryptography.Cose.CoseHeaderLabel:get_LabelName():System.String:this (FullOpts)
          10 (27.78 % of base) : System.ServiceModel.Syndication.dasm - System.ServiceModel.Syndication.SyndicationFeedFormatter+XmlExceptionHelper:GetName(System.String,System.String):System.String (FullOpts)
          10 (17.86 % of base) : System.Private.Xml.Linq.dasm - System.Xml.Linq.XName:ToString():System.String:this (FullOpts)
          10 (25.64 % of base) : System.Private.Xml.dasm - System.Xml.Schema.XmlSchemaValidator:QNameString(System.String,System.String):System.String (FullOpts)
          10 (27.78 % of base) : System.Private.Xml.dasm - System.Xml.ValidateNames:CreateName(System.String,System.String):System.String (FullOpts)
          10 (27.78 % of base) : System.Private.DataContractSerialization.dasm - System.Xml.XmlExceptionHelper:GetName(System.String,System.String):System.String (FullOpts)
          10 (22.22 % of base) : System.Private.Xml.dasm - System.Xml.XmlQualifiedName:ToString():System.String:this (FullOpts)
          10 (22.73 % of base) : System.Private.Xml.dasm - System.Xml.XmlSqlBinaryReader+QName:ToString():System.String:this (FullOpts)
          10 (22.22 % of base) : System.Private.Xml.dasm - System.Xml.Xsl.Qil.QilName:get_QualifiedName():System.String:this (FullOpts)
          10 (27.78 % of base) : System.Private.Xml.dasm - System.Xml.Xsl.Xslt.Compiler:ConstructQName(System.String,System.String):System.String (FullOpts)
          10 (27.78 % of base) : System.Private.Xml.dasm - System.Xml.Xsl.Xslt.XsltInput+DelayedQName:op_Implicit(System.Xml.Xsl.Xslt.XsltInput+DelayedQName):System.String (FullOpts)
          10 (23.26 % of base) : System.Private.Xml.dasm - System.Xml.Xsl.Xslt.XsltInput+Record:get_QualifiedName():System.String:this (FullOpts)
           7 (0.27 % of base) : System.Private.Xml.dasm - System.Xml.Serialization.XmlSerializationReaderCodeGen:WriteMemberEnd(System.Xml.Serialization.XmlSerializationReaderCodeGen+Member[],bool):this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.SignatureDecoder+TextTypeProvider:GetConstrainedMethod(System.String,System.String):System.String:this (FullOpts)
           6 (26.09 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[byte]:GetByReferenceType(System.String):System.String:this (FullOpts)
           6 (10.34 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[byte]:GetModifiedType(System.String,System.String,bool):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[byte]:GetPinnedType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[byte]:GetPointerType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[byte]:GetSZArrayType(System.String):System.String:this (FullOpts)
           6 (26.09 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[double]:GetByReferenceType(System.String):System.String:this (FullOpts)
           6 (10.34 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[double]:GetModifiedType(System.String,System.String,bool):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[double]:GetPinnedType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[double]:GetPointerType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[double]:GetSZArrayType(System.String):System.String:this (FullOpts)
           6 (26.09 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[int]:GetByReferenceType(System.String):System.String:this (FullOpts)
           6 (10.34 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[int]:GetModifiedType(System.String,System.String,bool):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[int]:GetPinnedType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[int]:GetPointerType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[int]:GetSZArrayType(System.String):System.String:this (FullOpts)
           6 (26.09 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[long]:GetByReferenceType(System.String):System.String:this (FullOpts)
           6 (10.34 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[long]:GetModifiedType(System.String,System.String,bool):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[long]:GetPinnedType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[long]:GetPointerType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[long]:GetSZArrayType(System.String):System.String:this (FullOpts)
           6 (26.09 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[short]:GetByReferenceType(System.String):System.String:this (FullOpts)
           6 (10.34 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[short]:GetModifiedType(System.String,System.String,bool):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[short]:GetPinnedType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[short]:GetPointerType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[short]:GetSZArrayType(System.String):System.String:this (FullOpts)
           6 (26.09 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.__Canon]:GetByReferenceType(System.String):System.String:this (FullOpts)
           6 (10.34 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.__Canon]:GetModifiedType(System.String,System.String,bool):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.__Canon]:GetPinnedType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.__Canon]:GetPointerType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.__Canon]:GetSZArrayType(System.String):System.String:this (FullOpts)
           6 (26.09 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.Nullable`1[int]]:GetByReferenceType(System.String):System.String:this (FullOpts)
           6 (10.34 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.Nullable`1[int]]:GetModifiedType(System.String,System.String,bool):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.Nullable`1[int]]:GetPinnedType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.Nullable`1[int]]:GetPointerType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.Nullable`1[int]]:GetSZArrayType(System.String):System.String:this (FullOpts)
           6 (26.09 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.Numerics.Vector`1[float]]:GetByReferenceType(System.String):System.String:this (FullOpts)
           6 (10.34 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.Numerics.Vector`1[float]]:GetModifiedType(System.String,System.String,bool):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.Numerics.Vector`1[float]]:GetPinnedType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.Numerics.Vector`1[float]]:GetPointerType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.Numerics.Vector`1[float]]:GetSZArrayType(System.String):System.String:this (FullOpts)
           6 (19.35 % of base) : Microsoft.Extensions.DependencyModel.dasm - Microsoft.Extensions.DependencyModel.DependencyContextWriter+<>c:<WriteLibraries>b__19_0(Microsoft.Extensions.DependencyModel.Library):System.String:this (FullOpts)
           6 (46.15 % of base) : Microsoft.VisualBasic.Core.dasm - Microsoft.VisualBasic.CompilerServices.Operators:AddString(System.String,System.String):System.Object (FullOpts)
           6 (23.08 % of base) : System.ComponentModel.Annotations.dasm - System.ComponentModel.DataAnnotations.FileExtensionsAttribute+<>c:<get_ExtensionsFormatted>b__6_0(System.String,System.String):System.String:this (FullOpts)
           6 (26.09 % of base) : System.ComponentModel.Annotations.dasm - System.ComponentModel.DataAnnotations.FileExtensionsAttribute+<>c:<get_ExtensionsParsed>b__10_0(System.String):System.String:this (FullOpts)
           6 (16.67 % of base) : System.Configuration.ConfigurationManager.dasm - System.Configuration.MgmtConfigurationRecord:WriteEmptyElement(System.String):System.String (FullOpts)
           6 (23.08 % of base) : System.IO.Packaging.dasm - System.IO.Packaging.ZipPackage:GetOpcNameFromZipItemName(System.String):System.String (FullOpts)
           6 (20.69 % of base) : System.Linq.Expressions.dasm - System.Linq.Expressions.DebugViewWriter:QuoteName(System.String):System.String (FullOpts)
           6 (17.65 % of base) : System.Net.Mail.dasm - System.Net.Mail.MailAddress:get_Address():System.String:this (FullOpts)
           6 (17.65 % of base) : System.Net.Mail.dasm - System.Net.Mime.ContentType:get_MediaType():System.String:this (FullOpts)
           6 (20.69 % of base) : System.Private.CoreLib.dasm - System.Reflection.Assembly:CreateQualifiedName(System.String,System.String):System.String (FullOpts)
           6 (19.35 % of base) : System.Reflection.Context.dasm - System.Reflection.Context.Virtual.VirtualPropertyBase+PropertyGetterBase:get_Name():System.String:this (FullOpts)
           6 (19.35 % of base) : System.Reflection.Context.dasm - System.Reflection.Context.Virtual.VirtualPropertyBase+PropertySetterBase:get_Name():System.String:this (FullOpts)
           6 (23.08 % of base) : System.Reflection.MetadataLoadContext.dasm - System.Reflection.TypeLoading.Ecma.EcmaSignatureTypeProviderForToString:GetByReferenceType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : System.Reflection.MetadataLoadContext.dasm - System.Reflection.TypeLoading.Ecma.EcmaSignatureTypeProviderForToString:GetPointerType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : System.Reflection.MetadataLoadContext.dasm - System.Reflection.TypeLoading.Ecma.EcmaSignatureTypeProviderForToString:GetSZArrayType(System.String):System.String:this (FullOpts)
           6 (17.65 % of base) : System.Security.Claims.dasm - System.Security.Claims.Claim:ToString():System.String:this (FullOpts)
           6 (26.09 % of base) : System.Private.CoreLib.dasm - System.TimeZoneInfo:GetUtcFullDisplayName(System.String,System.String):System.String (FullOpts)
           6 (23.08 % of base) : System.Data.Common.dasm - System.Xml.DataSetMapper:GetIdentity(System.String,System.String):System.Object (FullOpts)
           6 (16.67 % of base) : System.Private.Xml.dasm - System.Xml.Serialization.ReflectionAwareILGen:GetStringForArrayMember(System.String,System.String):System.String (FullOpts)

Top method improvements (bytes):
        -111 (-27.61 % of base) : Microsoft.VisualBasic.Core.dasm - Microsoft.VisualBasic.CompilerServices.Utils:FieldToString(System.Reflection.FieldInfo):System.String (FullOpts)
         -74 (-3.78 % of base) : System.Private.Xml.dasm - System.Xml.Serialization.XmlSerializationILGen:GenerateSerializerContract(System.Xml.Serialization.XmlMapping[],System.Type[],System.String,System.String[],System.String,System.String[],System.Collections.Generic.Dictionary`2[System.String,System.String]):this (FullOpts)
         -73 (-5.77 % of base) : Microsoft.VisualBasic.Core.dasm - Microsoft.VisualBasic.CompilerServices.Utils:MethodToString(System.Reflection.MethodBase):System.String (FullOpts)
         -48 (-1.24 % of base) : System.Private.Xml.dasm - System.Xml.Serialization.XmlSerializationWriterCodeGen:WriteEnumAndArrayTypes():this (FullOpts)
         -45 (-3.14 % of base) : System.Private.Xml.dasm - System.Xml.Serialization.XmlSerializationReaderCodeGen:WriteCreateCollection(System.Xml.Serialization.TypeDesc,System.String):this (FullOpts)
         -40 (-8.11 % of base) : System.Private.CoreLib.dasm - System.String:Concat(System.String,System.String,System.String,System.String):System.String (FullOpts)
         -35 (-5.15 % of base) : System.Private.CoreLib.dasm - System.Runtime.CompilerServices.ContractHelper:GetFailureMessage(int,System.String):System.String (FullOpts)
         -34 (-10.56 % of base) : System.Data.Common.dasm - System.Data.SimpleType:IsPlainString():bool:this (FullOpts)
         -25 (-4.84 % of base) : Microsoft.VisualBasic.Core.dasm - Microsoft.VisualBasic.CompilerServices.Utils:ParameterToString(System.Reflection.ParameterInfo):System.String (FullOpts)
         -24 (-6.65 % of base) : System.Private.Xml.dasm - System.Xml.Xsl.XmlQueryType:QNameToString(System.Xml.XmlQualifiedName):System.String (FullOpts)
         -22 (-3.02 % of base) : Microsoft.VisualBasic.Core.dasm - Microsoft.VisualBasic.CompilerServices.Utils:PropertyToString(System.Reflection.PropertyInfo):System.String (FullOpts)
         -19 (-1.59 % of base) : System.Private.CoreLib.dasm - System.Globalization.DateTimeFormatInfoScanner:AddDateWordOrPostfix(System.String,System.String):this (FullOpts)
         -16 (-2.32 % of base) : System.Private.CoreLib.dasm - System.Globalization.DateTimeFormatInfoScanner:ScanDateWord(System.String):this (FullOpts)
          -6 (-8.45 % of base) : System.Private.Xml.dasm - System.Xml.Serialization.XmlSerializationReader:ReadString(System.String):System.String:this (FullOpts)
          -4 (-3.42 % of base) : Microsoft.Extensions.FileSystemGlobbing.dasm - Microsoft.Extensions.FileSystemGlobbing.Internal.PatternContexts.PatternContextLinear:CalculateStem(Microsoft.Extensions.FileSystemGlobbing.Abstractions.FileInfoBase):System.String:this (FullOpts)
          -4 (-3.39 % of base) : Microsoft.Extensions.FileSystemGlobbing.dasm - Microsoft.Extensions.FileSystemGlobbing.Internal.PatternContexts.PatternContextRagged:CalculateStem(Microsoft.Extensions.FileSystemGlobbing.Abstractions.FileInfoBase):System.String:this (FullOpts)
          -2 (-2.60 % of base) : System.Linq.Expressions.dasm - System.Linq.Expressions.Interpreter.EnterTryCatchFinallyInstruction:ToString():System.String:this (FullOpts)
          -2 (-3.51 % of base) : System.Net.HttpListener.dasm - System.Net.ServiceNameStore:BuildSimpleServiceName(System.String):System.String (FullOpts)
          -2 (-1.96 % of base) : System.Reflection.MetadataLoadContext.dasm - System.Reflection.TypeLoading.Ecma.EcmaSignatureTypeProviderForToString:GetGenericMethodParameter(System.Reflection.TypeLoading.TypeContext,int):System.String:this (FullOpts)
          -2 (-1.96 % of base) : System.Reflection.MetadataLoadContext.dasm - System.Reflection.TypeLoading.Ecma.EcmaSignatureTypeProviderForToString:GetGenericTypeParameter(System.Reflection.TypeLoading.TypeContext,int):System.String:this (FullOpts)
          -2 (-3.64 % of base) : System.Console.dasm - System.TermInfo+DatabaseFactory:get_HomeTermInfoLocation():System.String (FullOpts)
          -2 (-3.08 % of base) : System.Private.Xml.dasm - System.Xml.Serialization.ReflectionAwareILGen:GetQuotedCSharpString(System.String):System.String (FullOpts)
          -1 (-1.30 % of base) : System.Private.Xml.dasm - System.Xml.Serialization.ReflectionAwareCodeGen:GetStringForEnumMember(System.String,System.String,bool):System.String:this (FullOpts)

Top method regressions (percentages):
           6 (46.15 % of base) : Microsoft.VisualBasic.Core.dasm - Microsoft.VisualBasic.CompilerServices.Operators:AddString(System.String,System.String):System.Object (FullOpts)
          18 (37.50 % of base) : System.Net.Requests.dasm - System.Net.ServicePointManager:MakeQueryString(System.Uri,bool):System.String (FullOpts)
          18 (28.57 % of base) : System.Data.Common.dasm - System.Data.DataTable:ToString():System.String:this (FullOpts)
          10 (28.57 % of base) : System.Data.Common.dasm - System.Data.NewDiffgramGen:QualifiedName(System.String,System.String):System.String (FullOpts)
          18 (28.12 % of base) : System.Data.Common.dasm - System.Data.SimpleType:QualifiedName(System.String):System.String (FullOpts)
          18 (28.12 % of base) : System.Data.Common.dasm - System.Data.XSDSchema:QualifiedName(System.String):System.String (FullOpts)
          10 (27.78 % of base) : System.Reflection.MetadataLoadContext.dasm - System.Reflection.TypeLoading.Helpers:AppendTypeName(System.String,System.String):System.String (FullOpts)
          10 (27.78 % of base) : System.ServiceModel.Syndication.dasm - System.ServiceModel.Syndication.SyndicationFeedFormatter+XmlExceptionHelper:GetName(System.String,System.String):System.String (FullOpts)
          10 (27.78 % of base) : System.Private.Xml.dasm - System.Xml.ValidateNames:CreateName(System.String,System.String):System.String (FullOpts)
          10 (27.78 % of base) : System.Private.DataContractSerialization.dasm - System.Xml.XmlExceptionHelper:GetName(System.String,System.String):System.String (FullOpts)
          10 (27.78 % of base) : System.Private.Xml.dasm - System.Xml.Xsl.Xslt.Compiler:ConstructQName(System.String,System.String):System.String (FullOpts)
          10 (27.78 % of base) : System.Private.Xml.dasm - System.Xml.Xsl.Xslt.XsltInput+DelayedQName:op_Implicit(System.Xml.Xsl.Xslt.XsltInput+DelayedQName):System.String (FullOpts)
          13 (26.53 % of base) : System.Composition.Runtime.dasm - System.Composition.Hosting.Core.CompositionContract+<>c:<ToString>b__14_0(System.Collections.Generic.KeyValuePair`2[System.String,System.Object]):System.String:this (FullOpts)
          10 (26.32 % of base) : System.Net.Http.dasm - System.Net.Http.Headers.EntityTagHeaderValue:ToString():System.String:this (FullOpts)
           6 (26.09 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[byte]:GetByReferenceType(System.String):System.String:this (FullOpts)
           6 (26.09 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[double]:GetByReferenceType(System.String):System.String:this (FullOpts)
           6 (26.09 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[int]:GetByReferenceType(System.String):System.String:this (FullOpts)
           6 (26.09 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[long]:GetByReferenceType(System.String):System.String:this (FullOpts)
           6 (26.09 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[short]:GetByReferenceType(System.String):System.String:this (FullOpts)
           6 (26.09 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.__Canon]:GetByReferenceType(System.String):System.String:this (FullOpts)
           6 (26.09 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.Nullable`1[int]]:GetByReferenceType(System.String):System.String:this (FullOpts)
           6 (26.09 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.Numerics.Vector`1[float]]:GetByReferenceType(System.String):System.String:this (FullOpts)
           6 (26.09 % of base) : System.ComponentModel.Annotations.dasm - System.ComponentModel.DataAnnotations.FileExtensionsAttribute+<>c:<get_ExtensionsParsed>b__10_0(System.String):System.String:this (FullOpts)
           6 (26.09 % of base) : System.Private.CoreLib.dasm - System.TimeZoneInfo:GetUtcFullDisplayName(System.String,System.String):System.String (FullOpts)
          10 (25.64 % of base) : System.Private.Xml.dasm - System.Xml.Schema.XmlSchemaValidator:QNameString(System.String,System.String):System.String (FullOpts)
          10 (24.39 % of base) : System.Diagnostics.DiagnosticSource.dasm - System.Diagnostics.Metrics.MetricsEventSource+MetricSpec:ToString():System.String:this (FullOpts)
          10 (23.26 % of base) : System.Private.Xml.dasm - System.Xml.Xsl.Xslt.XsltInput+Record:get_QualifiedName():System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.SignatureDecoder+TextTypeProvider:GetConstrainedMethod(System.String,System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[byte]:GetPinnedType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[byte]:GetPointerType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[byte]:GetSZArrayType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[double]:GetPinnedType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[double]:GetPointerType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[double]:GetSZArrayType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[int]:GetPinnedType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[int]:GetPointerType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[int]:GetSZArrayType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[long]:GetPinnedType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[long]:GetPointerType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[long]:GetSZArrayType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[short]:GetPinnedType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[short]:GetPointerType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[short]:GetSZArrayType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.__Canon]:GetPinnedType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.__Canon]:GetPointerType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.__Canon]:GetSZArrayType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.Nullable`1[int]]:GetPinnedType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.Nullable`1[int]]:GetPointerType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.Nullable`1[int]]:GetSZArrayType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.Numerics.Vector`1[float]]:GetPinnedType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.Numerics.Vector`1[float]]:GetPointerType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.Numerics.Vector`1[float]]:GetSZArrayType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : System.ComponentModel.Annotations.dasm - System.ComponentModel.DataAnnotations.FileExtensionsAttribute+<>c:<get_ExtensionsFormatted>b__6_0(System.String,System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : System.IO.Packaging.dasm - System.IO.Packaging.ZipPackage:GetOpcNameFromZipItemName(System.String):System.String (FullOpts)
           6 (23.08 % of base) : System.Reflection.MetadataLoadContext.dasm - System.Reflection.TypeLoading.Ecma.EcmaSignatureTypeProviderForToString:GetByReferenceType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : System.Reflection.MetadataLoadContext.dasm - System.Reflection.TypeLoading.Ecma.EcmaSignatureTypeProviderForToString:GetPointerType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : System.Reflection.MetadataLoadContext.dasm - System.Reflection.TypeLoading.Ecma.EcmaSignatureTypeProviderForToString:GetSZArrayType(System.String):System.String:this (FullOpts)
           6 (23.08 % of base) : System.Data.Common.dasm - System.Xml.DataSetMapper:GetIdentity(System.String,System.String):System.Object (FullOpts)
           6 (23.08 % of base) : System.Private.Xml.dasm - System.Xml.Serialization.ReflectionAwareILGen:GetStringForMember(System.String,System.String):System.String (FullOpts)
          10 (22.73 % of base) : System.Private.Xml.dasm - System.Xml.XmlSqlBinaryReader+QName:ToString():System.String:this (FullOpts)
          10 (22.22 % of base) : System.Private.Xml.dasm - MS.Internal.Xml.XPath.ExtensionQuery:get_QName():System.String:this (FullOpts)
          10 (22.22 % of base) : System.Data.Common.dasm - System.Data.SimpleType:get_SimpleTypeQualifiedName():System.String:this (FullOpts)
          10 (22.22 % of base) : System.Private.Xml.dasm - System.Xml.XmlQualifiedName:ToString():System.String:this (FullOpts)
          10 (22.22 % of base) : System.Private.Xml.dasm - System.Xml.Xsl.Qil.QilName:get_QualifiedName():System.String:this (FullOpts)
          13 (21.67 % of base) : System.Diagnostics.Process.dasm - System.Diagnostics.ProcessModule:ToString():System.String:this (FullOpts)
           6 (20.69 % of base) : System.Linq.Expressions.dasm - System.Linq.Expressions.DebugViewWriter:QuoteName(System.String):System.String (FullOpts)
           6 (20.69 % of base) : System.Private.CoreLib.dasm - System.Reflection.Assembly:CreateQualifiedName(System.String,System.String):System.String (FullOpts)
          13 (20.63 % of base) : System.Net.Quic.dasm - System.Net.Quic.ThrowHelper:GetErrorMessageForStatus(int,System.String):System.String (FullOpts)
          13 (20.31 % of base) : Microsoft.VisualBasic.Core.dasm - Microsoft.VisualBasic.CompilerServices.VB6File:GetQuotedString(System.String):System.String:this (FullOpts)
          13 (20.31 % of base) : System.Net.Primitives.dasm - System.Net.Cache.RequestCachePolicy:ToString():System.String:this (FullOpts)
          10 (20.00 % of base) : System.Security.Cryptography.Cose.dasm - System.Security.Cryptography.Cose.CoseHeaderLabel:get_LabelName():System.String:this (FullOpts)
           6 (19.35 % of base) : Microsoft.Extensions.DependencyModel.dasm - Microsoft.Extensions.DependencyModel.DependencyContextWriter+<>c:<WriteLibraries>b__19_0(Microsoft.Extensions.DependencyModel.Library):System.String:this (FullOpts)
           6 (19.35 % of base) : System.Reflection.Context.dasm - System.Reflection.Context.Virtual.VirtualPropertyBase+PropertyGetterBase:get_Name():System.String:this (FullOpts)
           6 (19.35 % of base) : System.Reflection.Context.dasm - System.Reflection.Context.Virtual.VirtualPropertyBase+PropertySetterBase:get_Name():System.String:this (FullOpts)
          10 (17.86 % of base) : System.Private.Xml.Linq.dasm - System.Xml.Linq.XName:ToString():System.String:this (FullOpts)
           6 (17.65 % of base) : System.Net.Mail.dasm - System.Net.Mail.MailAddress:get_Address():System.String:this (FullOpts)
           6 (17.65 % of base) : System.Net.Mail.dasm - System.Net.Mime.ContentType:get_MediaType():System.String:this (FullOpts)
           6 (17.65 % of base) : System.Security.Claims.dasm - System.Security.Claims.Claim:ToString():System.String:this (FullOpts)
          19 (17.27 % of base) : System.Private.Xml.dasm - System.Xml.Serialization.ReflectionAwareCodeGen:GetStringForMethod(System.String,System.String,System.String,bool):System.String:this (FullOpts)
          13 (16.88 % of base) : System.Diagnostics.DiagnosticSource.dasm - System.Diagnostics.Activity:get_DebuggerDisplayString():System.String:this (FullOpts)
           6 (16.67 % of base) : System.Configuration.ConfigurationManager.dasm - System.Configuration.MgmtConfigurationRecord:WriteEmptyElement(System.String):System.String (FullOpts)
           6 (16.67 % of base) : System.Private.Xml.dasm - System.Xml.Serialization.ReflectionAwareILGen:GetStringForArrayMember(System.String,System.String):System.String (FullOpts)
           6 (16.67 % of base) : System.Private.Xml.dasm - System.Xml.Serialization.ReflectionAwareILGen:GetStringForMethod(System.String,System.String):System.String (FullOpts)
           6 (16.67 % of base) : System.Private.Xml.dasm - System.Xml.Serialization.ReflectionAwareILGen:GetStringForTypeof(System.String):System.String (FullOpts)
           6 (16.67 % of base) : System.Private.Xml.dasm - System.Xml.XmlLoader:EntitizeName(System.String):System.String (FullOpts)
          13 (11.82 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[byte]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
          13 (11.82 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[double]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
          13 (11.82 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[int]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
          13 (11.82 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[long]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
          13 (11.82 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[short]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
          13 (11.82 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.__Canon]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
          13 (11.82 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.Nullable`1[int]]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
          13 (11.82 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.Numerics.Vector`1[float]]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
           6 (10.34 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[byte]:GetModifiedType(System.String,System.String,bool):System.String:this (FullOpts)
           6 (10.34 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[double]:GetModifiedType(System.String,System.String,bool):System.String:this (FullOpts)
           6 (10.34 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[int]:GetModifiedType(System.String,System.String,bool):System.String:this (FullOpts)
           6 (10.34 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[long]:GetModifiedType(System.String,System.String,bool):System.String:this (FullOpts)
           6 (10.34 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[short]:GetModifiedType(System.String,System.String,bool):System.String:this (FullOpts)
           6 (10.34 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.__Canon]:GetModifiedType(System.String,System.String,bool):System.String:this (FullOpts)
           6 (10.34 % of base) : ILCompiler.Reflection.ReadyToRun.dasm - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.Nullable`1[int]]:GetModifiedType(System.String,System.String,bool):System.String:this (FullOpts)

Top method improvements (percentages):
        -111 (-27.61 % of base) : Microsoft.VisualBasic.Core.dasm - Microsoft.VisualBasic.CompilerServices.Utils:FieldToString(System.Reflection.FieldInfo):System.String (FullOpts)
         -34 (-10.56 % of base) : System.Data.Common.dasm - System.Data.SimpleType:IsPlainString():bool:this (FullOpts)
          -6 (-8.45 % of base) : System.Private.Xml.dasm - System.Xml.Serialization.XmlSerializationReader:ReadString(System.String):System.String:this (FullOpts)
         -40 (-8.11 % of base) : System.Private.CoreLib.dasm - System.String:Concat(System.String,System.String,System.String,System.String):System.String (FullOpts)
         -24 (-6.65 % of base) : System.Private.Xml.dasm - System.Xml.Xsl.XmlQueryType:QNameToString(System.Xml.XmlQualifiedName):System.String (FullOpts)
         -73 (-5.77 % of base) : Microsoft.VisualBasic.Core.dasm - Microsoft.VisualBasic.CompilerServices.Utils:MethodToString(System.Reflection.MethodBase):System.String (FullOpts)
         -35 (-5.15 % of base) : System.Private.CoreLib.dasm - System.Runtime.CompilerServices.ContractHelper:GetFailureMessage(int,System.String):System.String (FullOpts)
         -25 (-4.84 % of base) : Microsoft.VisualBasic.Core.dasm - Microsoft.VisualBasic.CompilerServices.Utils:ParameterToString(System.Reflection.ParameterInfo):System.String (FullOpts)
         -74 (-3.78 % of base) : System.Private.Xml.dasm - System.Xml.Serialization.XmlSerializationILGen:GenerateSerializerContract(System.Xml.Serialization.XmlMapping[],System.Type[],System.String,System.String[],System.String,System.String[],System.Collections.Generic.Dictionary`2[System.String,System.String]):this (FullOpts)
          -2 (-3.64 % of base) : System.Console.dasm - System.TermInfo+DatabaseFactory:get_HomeTermInfoLocation():System.String (FullOpts)
          -2 (-3.51 % of base) : System.Net.HttpListener.dasm - System.Net.ServiceNameStore:BuildSimpleServiceName(System.String):System.String (FullOpts)
          -4 (-3.42 % of base) : Microsoft.Extensions.FileSystemGlobbing.dasm - Microsoft.Extensions.FileSystemGlobbing.Internal.PatternContexts.PatternContextLinear:CalculateStem(Microsoft.Extensions.FileSystemGlobbing.Abstractions.FileInfoBase):System.String:this (FullOpts)
          -4 (-3.39 % of base) : Microsoft.Extensions.FileSystemGlobbing.dasm - Microsoft.Extensions.FileSystemGlobbing.Internal.PatternContexts.PatternContextRagged:CalculateStem(Microsoft.Extensions.FileSystemGlobbing.Abstractions.FileInfoBase):System.String:this (FullOpts)
         -45 (-3.14 % of base) : System.Private.Xml.dasm - System.Xml.Serialization.XmlSerializationReaderCodeGen:WriteCreateCollection(System.Xml.Serialization.TypeDesc,System.String):this (FullOpts)
          -2 (-3.08 % of base) : System.Private.Xml.dasm - System.Xml.Serialization.ReflectionAwareILGen:GetQuotedCSharpString(System.String):System.String (FullOpts)
         -22 (-3.02 % of base) : Microsoft.VisualBasic.Core.dasm - Microsoft.VisualBasic.CompilerServices.Utils:PropertyToString(System.Reflection.PropertyInfo):System.String (FullOpts)
          -2 (-2.60 % of base) : System.Linq.Expressions.dasm - System.Linq.Expressions.Interpreter.EnterTryCatchFinallyInstruction:ToString():System.String:this (FullOpts)
         -16 (-2.32 % of base) : System.Private.CoreLib.dasm - System.Globalization.DateTimeFormatInfoScanner:ScanDateWord(System.String):this (FullOpts)
          -2 (-1.96 % of base) : System.Reflection.MetadataLoadContext.dasm - System.Reflection.TypeLoading.Ecma.EcmaSignatureTypeProviderForToString:GetGenericMethodParameter(System.Reflection.TypeLoading.TypeContext,int):System.String:this (FullOpts)
          -2 (-1.96 % of base) : System.Reflection.MetadataLoadContext.dasm - System.Reflection.TypeLoading.Ecma.EcmaSignatureTypeProviderForToString:GetGenericTypeParameter(System.Reflection.TypeLoading.TypeContext,int):System.String:this (FullOpts)
         -19 (-1.59 % of base) : System.Private.CoreLib.dasm - System.Globalization.DateTimeFormatInfoScanner:AddDateWordOrPostfix(System.String,System.String):this (FullOpts)
          -1 (-1.30 % of base) : System.Private.Xml.dasm - System.Xml.Serialization.ReflectionAwareCodeGen:GetStringForEnumMember(System.String,System.String,bool):System.String:this (FullOpts)
         -48 (-1.24 % of base) : System.Private.Xml.dasm - System.Xml.Serialization.XmlSerializationWriterCodeGen:WriteEnumAndArrayTypes():this (FullOpts)

349 total methods with Code Size differences (23 improved, 326 regressed), 286238 unchanged.

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Artifacts:

• diff-frameworks.txt (50 KB)
• ShortDiffsRegressions.md (59 KB)
• LongDiffsRegressions.md (237 KB)
• jit-diffs-main.zip (158 MB)
• jit-diffs-pr.zip (158 MB)
• ShortDiffsImprovements.md (57 KB)
• LongDiffsImprovements.md (332 KB)

[MihuBot]

Top method regressions

19 (17.27 % of base) - System.Xml.Serialization.ReflectionAwareCodeGen:GetStringForMethod(System.String,System.String,System.String,bool):System.String:this

 ; Assembly listing for method System.Xml.Serialization.ReflectionAwareCodeGen:GetStringForMethod(System.String,System.String,System.String,bool):System.String:this (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
-; rsp based frame
-; fully interruptible
+; rbp based frame
+; partially interruptible
 ; No PGO data
 ; Final local variable assignments
 ;
 ;  V00 this         [V00,T03] (  3,  2.50)     ref  ->  rdi         this class-hnd single-def <System.Xml.Serialization.ReflectionAwareCodeGen>
 ;  V01 arg1         [V01,T00] (  4,  3   )     ref  ->  rbx         class-hnd single-def <System.String>
 ;  V02 arg2         [V02,T04] (  3,  2.50)     ref  ->  rdx         class-hnd single-def <System.String>
 ;  V03 arg3         [V03,T01] (  4,  3   )     ref  ->  rax         class-hnd single-def <System.String>
 ;  V04 arg4         [V04,T02] (  3,  3   )   ubyte  ->   r8         single-def
 ;# V05 OutArgs      [V05    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
 ;  V06 tmp1         [V06,T05] (  2,  2   )     ref  ->  rdi         single-def "argument with side effect"
 ;
-; Lcl frame size = 0
+; Lcl frame size = 8
 
 G_M34232_IG01:
+       push     rbp
        push     rbx
+       push     rax
+       lea      rbp, [rsp+0x10]
        mov      rbx, rsi
        mov      rax, rcx
-						;; size=7 bbWeight=1 PerfScore 1.50
+						;; size=14 bbWeight=1 PerfScore 4.00
 G_M34232_IG02:
        test     r8b, r8b
        je       SHORT G_M34232_IG05
 						;; size=5 bbWeight=1 PerfScore 1.25
 G_M34232_IG03:
        mov      rsi, rdx
        mov      rdx, rax
        mov      rax, 0xD1FFAB1E      ; code for System.Xml.Serialization.ReflectionAwareCodeGen:GetReflectionVariable(System.String,System.String):System.String:this
        call     [rax]System.Xml.Serialization.ReflectionAwareCodeGen:GetReflectionVariable(System.String,System.String):System.String:this
        mov      rdi, rax
        mov      rdx, rbx
        mov      rsi, 0xD1FFAB1E      ; '.Invoke('
        mov      rcx, 0xD1FFAB1E      ; ', new object[]{'
        mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String,System.String,System.String):System.String
-						;; size=54 bbWeight=0.50 PerfScore 2.50
+       call     [rax]System.String:Concat(System.String,System.String,System.String,System.String):System.String
+       nop      
+						;; size=57 bbWeight=0.50 PerfScore 4.12
 G_M34232_IG04:
+       add      rsp, 8
        pop      rbx
-       tail.jmp [rax]System.String:Concat(System.String,System.String,System.String,System.String):System.String
-						;; size=4 bbWeight=0.50 PerfScore 1.25
+       pop      rbp
+       ret      
+						;; size=7 bbWeight=0.50 PerfScore 1.12
 G_M34232_IG05:
        mov      rdi, rbx
        mov      rdx, rax
        mov      rsi, 0xD1FFAB1E      ; '.'
        mov      rcx, 0xD1FFAB1E      ; '('
        mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String,System.String,System.String):System.String
-						;; size=36 bbWeight=0.50 PerfScore 0.62
+       call     [rax]System.String:Concat(System.String,System.String,System.String,System.String):System.String
+       nop      
+						;; size=39 bbWeight=0.50 PerfScore 2.25
 G_M34232_IG06:
+       add      rsp, 8
        pop      rbx
-       tail.jmp [rax]System.String:Concat(System.String,System.String,System.String,System.String):System.String
-						;; size=4 bbWeight=0.50 PerfScore 1.25
+       pop      rbp
+       ret      
+						;; size=7 bbWeight=0.50 PerfScore 1.12
 
-; Total bytes of code 110, prolog size 7, PerfScore 8.38, instruction count 23, allocated bytes for code 110 (MethodHash=826f7a47) for method System.Xml.Serialization.ReflectionAwareCodeGen:GetStringForMethod(System.String,System.String,System.String,bool):System.String:this (FullOpts)
+; Total bytes of code 129, prolog size 8, PerfScore 13.88, instruction count 34, allocated bytes for code 129 (MethodHash=826f7a47) for method System.Xml.Serialization.ReflectionAwareCodeGen:GetStringForMethod(System.String,System.String,System.String,bool):System.String:this (FullOpts)
 ; ============================================================

18 (28.57 % of base) - System.Data.DataTable:ToString():System.String:this

 ; Assembly listing for method System.Data.DataTable:ToString():System.String:this (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
-; rsp based frame
+; rbp 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] (  6,  4.50)     ref  ->  rdi         this class-hnd single-def <System.Data.DataTable>
 ;# V01 OutArgs      [V01    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
 ;* V02 tmp1         [V02    ] (  0,  0   )     ref  ->  zero-ref    class-hnd exact "impAppendStmt" <System.String>
 ;  V03 tmp2         [V03,T01] (  2,  2   )     ref  ->  rdx         single-def "argument with side effect"
 ;  V04 tmp3         [V04,T02] (  2,  2   )     ref  ->  rbx         single-def "argument with side effect"
 ;
-; Lcl frame size = 0
+; Lcl frame size = 8
 
 G_M43788_IG01:
+       push     rbp
        push     rbx
-						;; size=1 bbWeight=1 PerfScore 1.00
+       push     rax
+       lea      rbp, [rsp+0x10]
+						;; size=8 bbWeight=1 PerfScore 3.50
 G_M43788_IG02:
        cmp      gword ptr [rdi+0x88], 0
        jne      SHORT G_M43788_IG05
 						;; size=10 bbWeight=1 PerfScore 3.00
 G_M43788_IG03:
        mov      rax, gword ptr [rdi+0x70]
 						;; size=4 bbWeight=0.50 PerfScore 1.00
 G_M43788_IG04:
+       add      rsp, 8
        pop      rbx
+       pop      rbp
        ret      
-						;; size=2 bbWeight=0.50 PerfScore 0.75
+						;; size=7 bbWeight=0.50 PerfScore 1.12
 G_M43788_IG05:
        mov      rbx, gword ptr [rdi+0x70]
        mov      rax, 0xD1FFAB1E      ; code for System.Data.DataTable:get_DisplayExpressionInternal():System.String:this
        call     [rax]System.Data.DataTable:get_DisplayExpressionInternal():System.String:this
        mov      rdx, rax
        mov      rdi, rbx
        mov      rsi, 0xD1FFAB1E      ; ' + '
        mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String,System.String):System.String
-						;; size=42 bbWeight=0.50 PerfScore 3.12
+       call     [rax]System.String:Concat(System.String,System.String,System.String):System.String
+       nop      
+						;; size=45 bbWeight=0.50 PerfScore 4.75
 G_M43788_IG06:
+       add      rsp, 8
        pop      rbx
-       tail.jmp [rax]System.String:Concat(System.String,System.String,System.String):System.String
-						;; size=4 bbWeight=0.50 PerfScore 1.25
+       pop      rbp
+       ret      
+						;; size=7 bbWeight=0.50 PerfScore 1.12
 
-; Total bytes of code 63, prolog size 1, PerfScore 10.12, instruction count 15, allocated bytes for code 63 (MethodHash=a82754f3) for method System.Data.DataTable:ToString():System.String:this (FullOpts)
+; Total bytes of code 81, prolog size 8, PerfScore 14.50, instruction count 24, allocated bytes for code 81 (MethodHash=a82754f3) for method System.Data.DataTable:ToString():System.String:this (FullOpts)
 ; ============================================================

18 (28.12 % of base) - System.Data.SimpleType:QualifiedName(System.String):System.String

 ; Assembly listing for method System.Data.SimpleType:QualifiedName(System.String):System.String (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
-; rsp based frame
+; 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] (  6,  5   )     ref  ->  rbx         class-hnd single-def <System.String>
 ;# V01 OutArgs      [V01    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
 ;  V02 tmp1         [V02,T03] (  2,  2   )   ubyte  ->  rax         "Inline return value spill temp"
 ;  V03 tmp2         [V03,T01] (  2,  4   )   byref  ->  rdi         single-def "Inlining Arg"
 ;  V04 tmp3         [V04,T02] (  2,  4   )     int  ->  rdx         "Inlining Arg"
 ;
-; Lcl frame size = 0
+; Lcl frame size = 8
 
 G_M46513_IG01:
+       push     rbp
        push     rbx
+       push     rax
+       lea      rbp, [rsp+0x10]
        mov      rbx, rdi
-						;; size=4 bbWeight=1 PerfScore 1.25
+						;; size=11 bbWeight=1 PerfScore 3.75
 G_M46513_IG02:
        lea      rdi, bword ptr [rbx+0x0C]
        mov      edx, dword ptr [rbx+0x08]
        mov      esi, 58
        mov      rax, 0xD1FFAB1E      ; code for System.PackedSpanHelpers:Contains(byref,short,int):bool
        call     [rax]System.PackedSpanHelpers:Contains(byref,short,int):bool
        test     eax, eax
        je       SHORT G_M46513_IG05
 						;; size=28 bbWeight=1 PerfScore 7.25
 G_M46513_IG03:
        mov      rax, rbx
 						;; size=3 bbWeight=0.50 PerfScore 0.12
 G_M46513_IG04:
+       add      rsp, 8
        pop      rbx
+       pop      rbp
        ret      
-						;; size=2 bbWeight=0.50 PerfScore 0.75
+						;; size=7 bbWeight=0.50 PerfScore 1.12
 G_M46513_IG05:
        mov      rsi, rbx
        mov      rdi, 0xD1FFAB1E      ; 'xs:'
        mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String):System.String
-						;; size=23 bbWeight=0.50 PerfScore 0.38
+       call     [rax]System.String:Concat(System.String,System.String):System.String
+       nop      
+						;; size=26 bbWeight=0.50 PerfScore 2.00
 G_M46513_IG06:
+       add      rsp, 8
        pop      rbx
-       tail.jmp [rax]System.String:Concat(System.String,System.String):System.String
-						;; size=4 bbWeight=0.50 PerfScore 1.25
+       pop      rbp
+       ret      
+						;; size=7 bbWeight=0.50 PerfScore 1.12
 
-; Total bytes of code 64, prolog size 1, PerfScore 11.00, instruction count 17, allocated bytes for code 64 (MethodHash=f3e34a4e) for method System.Data.SimpleType:QualifiedName(System.String):System.String (FullOpts)
+; Total bytes of code 82, prolog size 8, PerfScore 15.38, instruction count 26, allocated bytes for code 82 (MethodHash=f3e34a4e) for method System.Data.SimpleType:QualifiedName(System.String):System.String (FullOpts)
 ; ============================================================

18 (28.12 % of base) - System.Data.XSDSchema:QualifiedName(System.String):System.String

 ; Assembly listing for method System.Data.XSDSchema:QualifiedName(System.String):System.String (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
-; rsp based frame
+; 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] (  6,  5   )     ref  ->  rbx         class-hnd single-def <System.String>
 ;# V01 OutArgs      [V01    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
 ;  V02 tmp1         [V02,T03] (  2,  2   )   ubyte  ->  rax         "Inline return value spill temp"
 ;  V03 tmp2         [V03,T01] (  2,  4   )   byref  ->  rdi         single-def "Inlining Arg"
 ;  V04 tmp3         [V04,T02] (  2,  4   )     int  ->  rdx         "Inlining Arg"
 ;
-; Lcl frame size = 0
+; Lcl frame size = 8
 
 G_M21625_IG01:
+       push     rbp
        push     rbx
+       push     rax
+       lea      rbp, [rsp+0x10]
        mov      rbx, rdi
-						;; size=4 bbWeight=1 PerfScore 1.25
+						;; size=11 bbWeight=1 PerfScore 3.75
 G_M21625_IG02:
        lea      rdi, bword ptr [rbx+0x0C]
        mov      edx, dword ptr [rbx+0x08]
        mov      esi, 58
        mov      rax, 0xD1FFAB1E      ; code for System.PackedSpanHelpers:Contains(byref,short,int):bool
        call     [rax]System.PackedSpanHelpers:Contains(byref,short,int):bool
        test     eax, eax
        je       SHORT G_M21625_IG05
 						;; size=28 bbWeight=1 PerfScore 7.25
 G_M21625_IG03:
        mov      rax, rbx
 						;; size=3 bbWeight=0.50 PerfScore 0.12
 G_M21625_IG04:
+       add      rsp, 8
        pop      rbx
+       pop      rbp
        ret      
-						;; size=2 bbWeight=0.50 PerfScore 0.75
+						;; size=7 bbWeight=0.50 PerfScore 1.12
 G_M21625_IG05:
        mov      rsi, rbx
        mov      rdi, 0xD1FFAB1E      ; 'xs:'
        mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String):System.String
-						;; size=23 bbWeight=0.50 PerfScore 0.38
+       call     [rax]System.String:Concat(System.String,System.String):System.String
+       nop      
+						;; size=26 bbWeight=0.50 PerfScore 2.00
 G_M21625_IG06:
+       add      rsp, 8
        pop      rbx
-       tail.jmp [rax]System.String:Concat(System.String,System.String):System.String
-						;; size=4 bbWeight=0.50 PerfScore 1.25
+       pop      rbp
+       ret      
+						;; size=7 bbWeight=0.50 PerfScore 1.12
 
-; Total bytes of code 64, prolog size 1, PerfScore 11.00, instruction count 17, allocated bytes for code 64 (MethodHash=43d7ab86) for method System.Data.XSDSchema:QualifiedName(System.String):System.String (FullOpts)
+; Total bytes of code 82, prolog size 8, PerfScore 15.38, instruction count 26, allocated bytes for code 82 (MethodHash=43d7ab86) for method System.Data.XSDSchema:QualifiedName(System.String):System.String (FullOpts)
 ; ============================================================

18 (37.50 % of base) - System.Net.ServicePointManager:MakeQueryString(System.Uri,bool):System.String

 ; Assembly listing for method System.Net.ServicePointManager:MakeQueryString(System.Uri,bool):System.String (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
-; rsp based frame
+; rbp based frame
 ; partially interruptible
 ; No PGO data
 ; Final local variable assignments
 ;
 ;  V00 arg0         [V00,T00] (  3,  3   )     ref  ->  rdi         class-hnd single-def <System.Uri>
 ;  V01 arg1         [V01,T01] (  3,  3   )   ubyte  ->  rbx         single-def
 ;  V02 loc0         [V02,T02] (  3,  2   )     ref  ->  rax         class-hnd exact single-def <System.String>
 ;# V03 OutArgs      [V03    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
 ;
-; Lcl frame size = 0
+; Lcl frame size = 8
 
 G_M37671_IG01:
+       push     rbp
        push     rbx
+       push     rax
+       lea      rbp, [rsp+0x10]
        mov      ebx, esi
-						;; size=3 bbWeight=1 PerfScore 1.25
+						;; size=10 bbWeight=1 PerfScore 3.75
 G_M37671_IG02:
        mov      rax, 0xD1FFAB1E      ; code for System.Net.ServicePointManager:MakeQueryString(System.Uri):System.String
        call     [rax]System.Net.ServicePointManager:MakeQueryString(System.Uri):System.String
        test     bl, bl
        je       SHORT G_M37671_IG05
 						;; size=16 bbWeight=1 PerfScore 4.50
 G_M37671_IG03:
        mov      rdi, rax
        mov      rsi, 0xD1FFAB1E      ; '://proxy'
        mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String):System.String
-						;; size=23 bbWeight=0.50 PerfScore 0.38
+       call     [rax]System.String:Concat(System.String,System.String):System.String
+       nop      
+						;; size=26 bbWeight=0.50 PerfScore 2.00
 G_M37671_IG04:
+       add      rsp, 8
        pop      rbx
-       tail.jmp [rax]System.String:Concat(System.String,System.String):System.String
-						;; size=4 bbWeight=0.50 PerfScore 1.25
-G_M37671_IG05:
-       pop      rbx
+       pop      rbp
        ret      
-						;; size=2 bbWeight=0.50 PerfScore 0.75
+						;; size=7 bbWeight=0.50 PerfScore 1.12
+G_M37671_IG05:
+       add      rsp, 8
+       pop      rbx
+       pop      rbp
+       ret      
+						;; size=7 bbWeight=0.50 PerfScore 1.12
 
-; Total bytes of code 48, prolog size 1, PerfScore 8.12, instruction count 13, allocated bytes for code 48 (MethodHash=028e6cd8) for method System.Net.ServicePointManager:MakeQueryString(System.Uri,bool):System.String (FullOpts)
+; Total bytes of code 66, prolog size 8, PerfScore 12.50, instruction count 22, allocated bytes for code 66 (MethodHash=028e6cd8) for method System.Net.ServicePointManager:MakeQueryString(System.Uri,bool):System.String (FullOpts)
 ; ============================================================

13 (11.82 % of base) - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[byte]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this

 ; Assembly listing for method ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[byte]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
-; rsp based frame
+; rbp based frame
 ; partially interruptible
 ; No PGO data
 ; Final local variable assignments
 ;
 ;* V00 this         [V00    ] (  0,  0   )     ref  ->  zero-ref    this class-hnd single-def <ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[byte]>
 ;  V01 arg1         [V01,T01] (  3,  3   )     ref  ->  rbx         class-hnd single-def <System.String>
 ;* V02 arg2         [V02    ] (  0,  0   )  struct ( 8) zero-ref    single-def <System.Collections.Immutable.ImmutableArray`1[System.String]>
 ;# V03 OutArgs      [V03    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
 ;  V04 tmp1         [V04,T00] (  3,  6   )     ref  ->  r14         class-hnd exact single-def "Single-def Box Helper" <System.Collections.Immutable.ImmutableArray`1[System.String]>
 ;  V05 tmp2         [V05,T02] (  2,  2   )     ref  ->  r15         single-def "field V02.array (fldOffset=0x0)" P-INDEP
 ;  V06 tmp3         [V06,T03] (  2,  4   )     ref  ->  rdx         single-def "argument with side effect"
 ;
-; Lcl frame size = 0
+; Lcl frame size = 8
 
 G_M43951_IG01:
+       push     rbp
        push     r15
        push     r14
        push     rbx
+       push     rax
+       lea      rbp, [rsp+0x20]
        mov      rbx, rsi
        mov      r15, rdx
-						;; size=11 bbWeight=1 PerfScore 3.50
+						;; size=18 bbWeight=1 PerfScore 6.00
 G_M43951_IG02:
        mov      rdi, 0xD1FFAB1E      ; System.Collections.Immutable.ImmutableArray`1[System.String]
        call     CORINFO_HELP_NEWSFAST
        mov      r14, rax
        lea      rdi, bword ptr [r14+0x08]
        mov      rsi, r15
        call     CORINFO_HELP_ASSIGN_REF
        mov      rsi, r14
        mov      rdi, 0xD1FFAB1E      ; ','
        mov      rax, 0xD1FFAB1E      ; code for System.String:Join(System.String,System.Collections.Generic.IEnumerable`1[System.String]):System.String
        call     [rax]System.String:Join(System.String,System.Collections.Generic.IEnumerable`1[System.String]):System.String
        mov      rdx, rax
        mov      rdi, rbx
        mov      rsi, 0xD1FFAB1E      ; '<'
        mov      rcx, 0xD1FFAB1E      ; '>'
        mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String,System.String,System.String):System.String
-						;; size=91 bbWeight=1 PerfScore 8.25
+       call     [rax]System.String:Concat(System.String,System.String,System.String,System.String):System.String
+       nop      
+						;; size=94 bbWeight=1 PerfScore 11.50
 G_M43951_IG03:
+       add      rsp, 8
        pop      rbx
        pop      r14
        pop      r15
-       tail.jmp [rax]System.String:Concat(System.String,System.String,System.String,System.String):System.String
-						;; size=8 bbWeight=1 PerfScore 3.50
+       pop      rbp
+       ret      
+						;; size=11 bbWeight=1 PerfScore 3.25
 
-; Total bytes of code 110, prolog size 5, PerfScore 15.25, instruction count 24, allocated bytes for code 110 (MethodHash=03d05450) for method ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[byte]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
+; Total bytes of code 123, prolog size 12, PerfScore 20.75, instruction count 31, allocated bytes for code 123 (MethodHash=03d05450) for method ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[byte]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
 ; ============================================================

13 (11.82 % of base) - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[double]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this

 ; Assembly listing for method ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[double]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
-; rsp based frame
+; rbp based frame
 ; partially interruptible
 ; No PGO data
 ; Final local variable assignments
 ;
 ;* V00 this         [V00    ] (  0,  0   )     ref  ->  zero-ref    this class-hnd single-def <ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[double]>
 ;  V01 arg1         [V01,T01] (  3,  3   )     ref  ->  rbx         class-hnd single-def <System.String>
 ;* V02 arg2         [V02    ] (  0,  0   )  struct ( 8) zero-ref    single-def <System.Collections.Immutable.ImmutableArray`1[System.String]>
 ;# V03 OutArgs      [V03    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
 ;  V04 tmp1         [V04,T00] (  3,  6   )     ref  ->  r14         class-hnd exact single-def "Single-def Box Helper" <System.Collections.Immutable.ImmutableArray`1[System.String]>
 ;  V05 tmp2         [V05,T02] (  2,  2   )     ref  ->  r15         single-def "field V02.array (fldOffset=0x0)" P-INDEP
 ;  V06 tmp3         [V06,T03] (  2,  4   )     ref  ->  rdx         single-def "argument with side effect"
 ;
-; Lcl frame size = 0
+; Lcl frame size = 8
 
 G_M63248_IG01:
+       push     rbp
        push     r15
        push     r14
        push     rbx
+       push     rax
+       lea      rbp, [rsp+0x20]
        mov      rbx, rsi
        mov      r15, rdx
-						;; size=11 bbWeight=1 PerfScore 3.50
+						;; size=18 bbWeight=1 PerfScore 6.00
 G_M63248_IG02:
        mov      rdi, 0xD1FFAB1E      ; System.Collections.Immutable.ImmutableArray`1[System.String]
        call     CORINFO_HELP_NEWSFAST
        mov      r14, rax
        lea      rdi, bword ptr [r14+0x08]
        mov      rsi, r15
        call     CORINFO_HELP_ASSIGN_REF
        mov      rsi, r14
        mov      rdi, 0xD1FFAB1E      ; ','
        mov      rax, 0xD1FFAB1E      ; code for System.String:Join(System.String,System.Collections.Generic.IEnumerable`1[System.String]):System.String
        call     [rax]System.String:Join(System.String,System.Collections.Generic.IEnumerable`1[System.String]):System.String
        mov      rdx, rax
        mov      rdi, rbx
        mov      rsi, 0xD1FFAB1E      ; '<'
        mov      rcx, 0xD1FFAB1E      ; '>'
        mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String,System.String,System.String):System.String
-						;; size=91 bbWeight=1 PerfScore 8.25
+       call     [rax]System.String:Concat(System.String,System.String,System.String,System.String):System.String
+       nop      
+						;; size=94 bbWeight=1 PerfScore 11.50
 G_M63248_IG03:
+       add      rsp, 8
        pop      rbx
        pop      r14
        pop      r15
-       tail.jmp [rax]System.String:Concat(System.String,System.String,System.String,System.String):System.String
-						;; size=8 bbWeight=1 PerfScore 3.50
+       pop      rbp
+       ret      
+						;; size=11 bbWeight=1 PerfScore 3.25
 
-; Total bytes of code 110, prolog size 5, PerfScore 15.25, instruction count 24, allocated bytes for code 110 (MethodHash=e75e08ef) for method ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[double]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
+; Total bytes of code 123, prolog size 12, PerfScore 20.75, instruction count 31, allocated bytes for code 123 (MethodHash=e75e08ef) for method ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[double]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
 ; ============================================================

13 (11.82 % of base) - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[int]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this

 ; Assembly listing for method ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[int]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
-; rsp based frame
+; rbp based frame
 ; partially interruptible
 ; No PGO data
 ; Final local variable assignments
 ;
 ;* V00 this         [V00    ] (  0,  0   )     ref  ->  zero-ref    this class-hnd single-def <ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[int]>
 ;  V01 arg1         [V01,T01] (  3,  3   )     ref  ->  rbx         class-hnd single-def <System.String>
 ;* V02 arg2         [V02    ] (  0,  0   )  struct ( 8) zero-ref    single-def <System.Collections.Immutable.ImmutableArray`1[System.String]>
 ;# V03 OutArgs      [V03    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
 ;  V04 tmp1         [V04,T00] (  3,  6   )     ref  ->  r14         class-hnd exact single-def "Single-def Box Helper" <System.Collections.Immutable.ImmutableArray`1[System.String]>
 ;  V05 tmp2         [V05,T02] (  2,  2   )     ref  ->  r15         single-def "field V02.array (fldOffset=0x0)" P-INDEP
 ;  V06 tmp3         [V06,T03] (  2,  4   )     ref  ->  rdx         single-def "argument with side effect"
 ;
-; Lcl frame size = 0
+; Lcl frame size = 8
 
 G_M31830_IG01:
+       push     rbp
        push     r15
        push     r14
        push     rbx
+       push     rax
+       lea      rbp, [rsp+0x20]
        mov      rbx, rsi
        mov      r15, rdx
-						;; size=11 bbWeight=1 PerfScore 3.50
+						;; size=18 bbWeight=1 PerfScore 6.00
 G_M31830_IG02:
        mov      rdi, 0xD1FFAB1E      ; System.Collections.Immutable.ImmutableArray`1[System.String]
        call     CORINFO_HELP_NEWSFAST
        mov      r14, rax
        lea      rdi, bword ptr [r14+0x08]
        mov      rsi, r15
        call     CORINFO_HELP_ASSIGN_REF
        mov      rsi, r14
        mov      rdi, 0xD1FFAB1E      ; ','
        mov      rax, 0xD1FFAB1E      ; code for System.String:Join(System.String,System.Collections.Generic.IEnumerable`1[System.String]):System.String
        call     [rax]System.String:Join(System.String,System.Collections.Generic.IEnumerable`1[System.String]):System.String
        mov      rdx, rax
        mov      rdi, rbx
        mov      rsi, 0xD1FFAB1E      ; '<'
        mov      rcx, 0xD1FFAB1E      ; '>'
        mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String,System.String,System.String):System.String
-						;; size=91 bbWeight=1 PerfScore 8.25
+       call     [rax]System.String:Concat(System.String,System.String,System.String,System.String):System.String
+       nop      
+						;; size=94 bbWeight=1 PerfScore 11.50
 G_M31830_IG03:
+       add      rsp, 8
        pop      rbx
        pop      r14
        pop      r15
-       tail.jmp [rax]System.String:Concat(System.String,System.String,System.String,System.String):System.String
-						;; size=8 bbWeight=1 PerfScore 3.50
+       pop      rbp
+       ret      
+						;; size=11 bbWeight=1 PerfScore 3.25
 
-; Total bytes of code 110, prolog size 5, PerfScore 15.25, instruction count 24, allocated bytes for code 110 (MethodHash=571483a9) for method ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[int]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
+; Total bytes of code 123, prolog size 12, PerfScore 20.75, instruction count 31, allocated bytes for code 123 (MethodHash=571483a9) for method ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[int]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
 ; ============================================================

13 (11.82 % of base) - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[long]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this

 ; Assembly listing for method ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[long]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
-; rsp based frame
+; rbp based frame
 ; partially interruptible
 ; No PGO data
 ; Final local variable assignments
 ;
 ;* V00 this         [V00    ] (  0,  0   )     ref  ->  zero-ref    this class-hnd single-def <ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[long]>
 ;  V01 arg1         [V01,T01] (  3,  3   )     ref  ->  rbx         class-hnd single-def <System.String>
 ;* V02 arg2         [V02    ] (  0,  0   )  struct ( 8) zero-ref    single-def <System.Collections.Immutable.ImmutableArray`1[System.String]>
 ;# V03 OutArgs      [V03    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
 ;  V04 tmp1         [V04,T00] (  3,  6   )     ref  ->  r14         class-hnd exact single-def "Single-def Box Helper" <System.Collections.Immutable.ImmutableArray`1[System.String]>
 ;  V05 tmp2         [V05,T02] (  2,  2   )     ref  ->  r15         single-def "field V02.array (fldOffset=0x0)" P-INDEP
 ;  V06 tmp3         [V06,T03] (  2,  4   )     ref  ->  rdx         single-def "argument with side effect"
 ;
-; Lcl frame size = 0
+; Lcl frame size = 8
 
 G_M44463_IG01:
+       push     rbp
        push     r15
        push     r14
        push     rbx
+       push     rax
+       lea      rbp, [rsp+0x20]
        mov      rbx, rsi
        mov      r15, rdx
-						;; size=11 bbWeight=1 PerfScore 3.50
+						;; size=18 bbWeight=1 PerfScore 6.00
 G_M44463_IG02:
        mov      rdi, 0xD1FFAB1E      ; System.Collections.Immutable.ImmutableArray`1[System.String]
        call     CORINFO_HELP_NEWSFAST
        mov      r14, rax
        lea      rdi, bword ptr [r14+0x08]
        mov      rsi, r15
        call     CORINFO_HELP_ASSIGN_REF
        mov      rsi, r14
        mov      rdi, 0xD1FFAB1E      ; ','
        mov      rax, 0xD1FFAB1E      ; code for System.String:Join(System.String,System.Collections.Generic.IEnumerable`1[System.String]):System.String
        call     [rax]System.String:Join(System.String,System.Collections.Generic.IEnumerable`1[System.String]):System.String
        mov      rdx, rax
        mov      rdi, rbx
        mov      rsi, 0xD1FFAB1E      ; '<'
        mov      rcx, 0xD1FFAB1E      ; '>'
        mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String,System.String,System.String):System.String
-						;; size=91 bbWeight=1 PerfScore 8.25
+       call     [rax]System.String:Concat(System.String,System.String,System.String,System.String):System.String
+       nop      
+						;; size=94 bbWeight=1 PerfScore 11.50
 G_M44463_IG03:
+       add      rsp, 8
        pop      rbx
        pop      r14
        pop      r15
-       tail.jmp [rax]System.String:Concat(System.String,System.String,System.String,System.String):System.String
-						;; size=8 bbWeight=1 PerfScore 3.50
+       pop      rbp
+       ret      
+						;; size=11 bbWeight=1 PerfScore 3.25
 
-; Total bytes of code 110, prolog size 5, PerfScore 15.25, instruction count 24, allocated bytes for code 110 (MethodHash=35995250) for method ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[long]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
+; Total bytes of code 123, prolog size 12, PerfScore 20.75, instruction count 31, allocated bytes for code 123 (MethodHash=35995250) for method ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[long]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
 ; ============================================================

13 (11.82 % of base) - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[short]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this

 ; Assembly listing for method ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[short]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
-; rsp based frame
+; rbp based frame
 ; partially interruptible
 ; No PGO data
 ; Final local variable assignments
 ;
 ;* V00 this         [V00    ] (  0,  0   )     ref  ->  zero-ref    this class-hnd single-def <ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[short]>
 ;  V01 arg1         [V01,T01] (  3,  3   )     ref  ->  rbx         class-hnd single-def <System.String>
 ;* V02 arg2         [V02    ] (  0,  0   )  struct ( 8) zero-ref    single-def <System.Collections.Immutable.ImmutableArray`1[System.String]>
 ;# V03 OutArgs      [V03    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
 ;  V04 tmp1         [V04,T00] (  3,  6   )     ref  ->  r14         class-hnd exact single-def "Single-def Box Helper" <System.Collections.Immutable.ImmutableArray`1[System.String]>
 ;  V05 tmp2         [V05,T02] (  2,  2   )     ref  ->  r15         single-def "field V02.array (fldOffset=0x0)" P-INDEP
 ;  V06 tmp3         [V06,T03] (  2,  4   )     ref  ->  rdx         single-def "argument with side effect"
 ;
-; Lcl frame size = 0
+; Lcl frame size = 8
 
 G_M52823_IG01:
+       push     rbp
        push     r15
        push     r14
        push     rbx
+       push     rax
+       lea      rbp, [rsp+0x20]
        mov      rbx, rsi
        mov      r15, rdx
-						;; size=11 bbWeight=1 PerfScore 3.50
+						;; size=18 bbWeight=1 PerfScore 6.00
 G_M52823_IG02:
        mov      rdi, 0xD1FFAB1E      ; System.Collections.Immutable.ImmutableArray`1[System.String]
        call     CORINFO_HELP_NEWSFAST
        mov      r14, rax
        lea      rdi, bword ptr [r14+0x08]
        mov      rsi, r15
        call     CORINFO_HELP_ASSIGN_REF
        mov      rsi, r14
        mov      rdi, 0xD1FFAB1E      ; ','
        mov      rax, 0xD1FFAB1E      ; code for System.String:Join(System.String,System.Collections.Generic.IEnumerable`1[System.String]):System.String
        call     [rax]System.String:Join(System.String,System.Collections.Generic.IEnumerable`1[System.String]):System.String
        mov      rdx, rax
        mov      rdi, rbx
        mov      rsi, 0xD1FFAB1E      ; '<'
        mov      rcx, 0xD1FFAB1E      ; '>'
        mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String,System.String,System.String):System.String
-						;; size=91 bbWeight=1 PerfScore 8.25
+       call     [rax]System.String:Concat(System.String,System.String,System.String,System.String):System.String
+       nop      
+						;; size=94 bbWeight=1 PerfScore 11.50
 G_M52823_IG03:
+       add      rsp, 8
        pop      rbx
        pop      r14
        pop      r15
-       tail.jmp [rax]System.String:Concat(System.String,System.String,System.String,System.String):System.String
-						;; size=8 bbWeight=1 PerfScore 3.50
+       pop      rbp
+       ret      
+						;; size=11 bbWeight=1 PerfScore 3.25
 
-; Total bytes of code 110, prolog size 5, PerfScore 15.25, instruction count 24, allocated bytes for code 110 (MethodHash=104c31a8) for method ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[short]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
+; Total bytes of code 123, prolog size 12, PerfScore 20.75, instruction count 31, allocated bytes for code 123 (MethodHash=104c31a8) for method ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[short]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
 ; ============================================================

13 (11.82 % of base) - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.__Canon]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this

 ; Assembly listing for method ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.__Canon]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
-; rsp based frame
+; rbp based frame
 ; partially interruptible
 ; No PGO data
 ; Final local variable assignments
 ;
 ;* V00 this         [V00    ] (  0,  0   )     ref  ->  zero-ref    this class-hnd single-def <ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.__Canon]>
 ;  V01 arg1         [V01,T01] (  3,  3   )     ref  ->  rbx         class-hnd single-def <System.String>
 ;* V02 arg2         [V02    ] (  0,  0   )  struct ( 8) zero-ref    single-def <System.Collections.Immutable.ImmutableArray`1[System.String]>
 ;# V03 OutArgs      [V03    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
 ;  V04 tmp1         [V04,T00] (  3,  6   )     ref  ->  r14         class-hnd exact single-def "Single-def Box Helper" <System.Collections.Immutable.ImmutableArray`1[System.String]>
 ;  V05 tmp2         [V05,T02] (  2,  2   )     ref  ->  r15         single-def "field V02.array (fldOffset=0x0)" P-INDEP
 ;  V06 tmp3         [V06,T03] (  2,  4   )     ref  ->  rdx         single-def "argument with side effect"
 ;
-; Lcl frame size = 0
+; Lcl frame size = 8
 
 G_M19619_IG01:
+       push     rbp
        push     r15
        push     r14
        push     rbx
+       push     rax
+       lea      rbp, [rsp+0x20]
        mov      rbx, rsi
        mov      r15, rdx
-						;; size=11 bbWeight=1 PerfScore 3.50
+						;; size=18 bbWeight=1 PerfScore 6.00
 G_M19619_IG02:
        mov      rdi, 0xD1FFAB1E      ; System.Collections.Immutable.ImmutableArray`1[System.String]
        call     CORINFO_HELP_NEWSFAST
        mov      r14, rax
        lea      rdi, bword ptr [r14+0x08]
        mov      rsi, r15
        call     CORINFO_HELP_ASSIGN_REF
        mov      rsi, r14
        mov      rdi, 0xD1FFAB1E      ; ','
        mov      rax, 0xD1FFAB1E      ; code for System.String:Join(System.String,System.Collections.Generic.IEnumerable`1[System.String]):System.String
        call     [rax]System.String:Join(System.String,System.Collections.Generic.IEnumerable`1[System.String]):System.String
        mov      rdx, rax
        mov      rdi, rbx
        mov      rsi, 0xD1FFAB1E      ; '<'
        mov      rcx, 0xD1FFAB1E      ; '>'
        mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String,System.String,System.String):System.String
-						;; size=91 bbWeight=1 PerfScore 8.25
+       call     [rax]System.String:Concat(System.String,System.String,System.String,System.String):System.String
+       nop      
+						;; size=94 bbWeight=1 PerfScore 11.50
 G_M19619_IG03:
+       add      rsp, 8
        pop      rbx
        pop      r14
        pop      r15
-       tail.jmp [rax]System.String:Concat(System.String,System.String,System.String,System.String):System.String
-						;; size=8 bbWeight=1 PerfScore 3.50
+       pop      rbp
+       ret      
+						;; size=11 bbWeight=1 PerfScore 3.25
 
-; Total bytes of code 110, prolog size 5, PerfScore 15.25, instruction count 24, allocated bytes for code 110 (MethodHash=9cb3b35c) for method ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.__Canon]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
+; Total bytes of code 123, prolog size 12, PerfScore 20.75, instruction count 31, allocated bytes for code 123 (MethodHash=9cb3b35c) for method ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.__Canon]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
 ; ============================================================

13 (11.82 % of base) - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.Nullable`1[int]]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this

 ; Assembly listing for method ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.Nullable`1[int]]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
-; rsp based frame
+; rbp based frame
 ; partially interruptible
 ; No PGO data
 ; Final local variable assignments
 ;
 ;* V00 this         [V00    ] (  0,  0   )     ref  ->  zero-ref    this class-hnd single-def <ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.Nullable`1[int]]>
 ;  V01 arg1         [V01,T01] (  3,  3   )     ref  ->  rbx         class-hnd single-def <System.String>
 ;* V02 arg2         [V02    ] (  0,  0   )  struct ( 8) zero-ref    single-def <System.Collections.Immutable.ImmutableArray`1[System.String]>
 ;# V03 OutArgs      [V03    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
 ;  V04 tmp1         [V04,T00] (  3,  6   )     ref  ->  r14         class-hnd exact single-def "Single-def Box Helper" <System.Collections.Immutable.ImmutableArray`1[System.String]>
 ;  V05 tmp2         [V05,T02] (  2,  2   )     ref  ->  r15         single-def "field V02.array (fldOffset=0x0)" P-INDEP
 ;  V06 tmp3         [V06,T03] (  2,  4   )     ref  ->  rdx         single-def "argument with side effect"
 ;
-; Lcl frame size = 0
+; Lcl frame size = 8
 
 G_M41307_IG01:
+       push     rbp
        push     r15
        push     r14
        push     rbx
+       push     rax
+       lea      rbp, [rsp+0x20]
        mov      rbx, rsi
        mov      r15, rdx
-						;; size=11 bbWeight=1 PerfScore 3.50
+						;; size=18 bbWeight=1 PerfScore 6.00
 G_M41307_IG02:
        mov      rdi, 0xD1FFAB1E      ; System.Collections.Immutable.ImmutableArray`1[System.String]
        call     CORINFO_HELP_NEWSFAST
        mov      r14, rax
        lea      rdi, bword ptr [r14+0x08]
        mov      rsi, r15
        call     CORINFO_HELP_ASSIGN_REF
        mov      rsi, r14
        mov      rdi, 0xD1FFAB1E      ; ','
        mov      rax, 0xD1FFAB1E      ; code for System.String:Join(System.String,System.Collections.Generic.IEnumerable`1[System.String]):System.String
        call     [rax]System.String:Join(System.String,System.Collections.Generic.IEnumerable`1[System.String]):System.String
        mov      rdx, rax
        mov      rdi, rbx
        mov      rsi, 0xD1FFAB1E      ; '<'
        mov      rcx, 0xD1FFAB1E      ; '>'
        mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String,System.String,System.String):System.String
-						;; size=91 bbWeight=1 PerfScore 8.25
+       call     [rax]System.String:Concat(System.String,System.String,System.String,System.String):System.String
+       nop      
+						;; size=94 bbWeight=1 PerfScore 11.50
 G_M41307_IG03:
+       add      rsp, 8
        pop      rbx
        pop      r14
        pop      r15
-       tail.jmp [rax]System.String:Concat(System.String,System.String,System.String,System.String):System.String
-						;; size=8 bbWeight=1 PerfScore 3.50
+       pop      rbp
+       ret      
+						;; size=11 bbWeight=1 PerfScore 3.25
 
-; Total bytes of code 110, prolog size 5, PerfScore 15.25, instruction count 24, allocated bytes for code 110 (MethodHash=fcea5ea4) for method ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.Nullable`1[int]]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
+; Total bytes of code 123, prolog size 12, PerfScore 20.75, instruction count 31, allocated bytes for code 123 (MethodHash=fcea5ea4) for method ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.Nullable`1[int]]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
 ; ============================================================

13 (11.82 % of base) - ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.Numerics.Vector`1[float]]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this

 ; Assembly listing for method ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.Numerics.Vector`1[float]]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
-; rsp based frame
+; rbp based frame
 ; partially interruptible
 ; No PGO data
 ; Final local variable assignments
 ;
 ;* V00 this         [V00    ] (  0,  0   )     ref  ->  zero-ref    this class-hnd single-def <ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.Numerics.Vector`1[float]]>
 ;  V01 arg1         [V01,T01] (  3,  3   )     ref  ->  rbx         class-hnd single-def <System.String>
 ;* V02 arg2         [V02    ] (  0,  0   )  struct ( 8) zero-ref    single-def <System.Collections.Immutable.ImmutableArray`1[System.String]>
 ;# V03 OutArgs      [V03    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
 ;  V04 tmp1         [V04,T00] (  3,  6   )     ref  ->  r14         class-hnd exact single-def "Single-def Box Helper" <System.Collections.Immutable.ImmutableArray`1[System.String]>
 ;  V05 tmp2         [V05,T02] (  2,  2   )     ref  ->  r15         single-def "field V02.array (fldOffset=0x0)" P-INDEP
 ;  V06 tmp3         [V06,T03] (  2,  4   )     ref  ->  rdx         single-def "argument with side effect"
 ;
-; Lcl frame size = 0
+; Lcl frame size = 8
 
 G_M36614_IG01:
+       push     rbp
        push     r15
        push     r14
        push     rbx
+       push     rax
+       lea      rbp, [rsp+0x20]
        mov      rbx, rsi
        mov      r15, rdx
-						;; size=11 bbWeight=1 PerfScore 3.50
+						;; size=18 bbWeight=1 PerfScore 6.00
 G_M36614_IG02:
        mov      rdi, 0xD1FFAB1E      ; System.Collections.Immutable.ImmutableArray`1[System.String]
        call     CORINFO_HELP_NEWSFAST
        mov      r14, rax
        lea      rdi, bword ptr [r14+0x08]
        mov      rsi, r15
        call     CORINFO_HELP_ASSIGN_REF
        mov      rsi, r14
        mov      rdi, 0xD1FFAB1E      ; ','
        mov      rax, 0xD1FFAB1E      ; code for System.String:Join(System.String,System.Collections.Generic.IEnumerable`1[System.String]):System.String
        call     [rax]System.String:Join(System.String,System.Collections.Generic.IEnumerable`1[System.String]):System.String
        mov      rdx, rax
        mov      rdi, rbx
        mov      rsi, 0xD1FFAB1E      ; '<'
        mov      rcx, 0xD1FFAB1E      ; '>'
        mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String,System.String,System.String):System.String
-						;; size=91 bbWeight=1 PerfScore 8.25
+       call     [rax]System.String:Concat(System.String,System.String,System.String,System.String):System.String
+       nop      
+						;; size=94 bbWeight=1 PerfScore 11.50
 G_M36614_IG03:
+       add      rsp, 8
        pop      rbx
        pop      r14
        pop      r15
-       tail.jmp [rax]System.String:Concat(System.String,System.String,System.String,System.String):System.String
-						;; size=8 bbWeight=1 PerfScore 3.50
+       pop      rbp
+       ret      
+						;; size=11 bbWeight=1 PerfScore 3.25
 
-; Total bytes of code 110, prolog size 5, PerfScore 15.25, instruction count 24, allocated bytes for code 110 (MethodHash=fc7470f9) for method ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.Numerics.Vector`1[float]]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
+; Total bytes of code 123, prolog size 12, PerfScore 20.75, instruction count 31, allocated bytes for code 123 (MethodHash=fc7470f9) for method ILCompiler.Reflection.ReadyToRun.StringTypeProviderBase`1[System.Numerics.Vector`1[float]]:GetGenericInstantiation(System.String,System.Collections.Immutable.ImmutableArray`1[System.String]):System.String:this (FullOpts)
 ; ============================================================

13 (20.31 % of base) - Microsoft.VisualBasic.CompilerServices.VB6File:GetQuotedString(System.String):System.String:this

 ; Assembly listing for method Microsoft.VisualBasic.CompilerServices.VB6File:GetQuotedString(System.String):System.String:this (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
-; rsp based frame
+; rbp based frame
 ; partially interruptible
 ; No PGO data
 ; Final local variable assignments
 ;
 ;* V00 this         [V00    ] (  0,  0   )     ref  ->  zero-ref    this class-hnd single-def <Microsoft.VisualBasic.CompilerServices.VB6File>
 ;  V01 arg1         [V01,T00] (  3,  3   )     ref  ->  rsi         class-hnd single-def <System.String>
 ;# V02 OutArgs      [V02    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
 ;  V03 tmp1         [V03,T02] (  2,  4   )     ref  ->  rsi         single-def "argument with side effect"
 ;  V04 cse0         [V04,T01] (  4,  4   )     ref  ->  rbx         "CSE #01: aggressive"
 ;
-; Lcl frame size = 0
+; Lcl frame size = 8
 
 G_M60935_IG01:
+       push     rbp
        push     rbx
-						;; size=1 bbWeight=1 PerfScore 1.00
+       push     rax
+       lea      rbp, [rsp+0x10]
+						;; size=8 bbWeight=1 PerfScore 3.50
 G_M60935_IG02:
        mov      rdi, rsi
        mov      rbx, 0xD1FFAB1E      ; '"'
        mov      rsi, rbx
        mov      rdx, 0xD1FFAB1E      ; '""'
        mov      rax, 0xD1FFAB1E      ; code for System.String:Replace(System.String,System.String):System.String:this
        cmp      dword ptr [rdi], edi
        call     [rax]System.String:Replace(System.String,System.String):System.String:this
        mov      rsi, rax
        mov      rdi, rbx
        mov      rdx, rbx
        mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String,System.String):System.String
-						;; size=59 bbWeight=1 PerfScore 7.25
+       call     [rax]System.String:Concat(System.String,System.String,System.String):System.String
+       nop      
+						;; size=62 bbWeight=1 PerfScore 10.50
 G_M60935_IG03:
+       add      rsp, 8
        pop      rbx
-       tail.jmp [rax]System.String:Concat(System.String,System.String,System.String):System.String
-						;; size=4 bbWeight=1 PerfScore 2.50
+       pop      rbp
+       ret      
+						;; size=7 bbWeight=1 PerfScore 2.25
 
-; Total bytes of code 64, prolog size 1, PerfScore 10.75, instruction count 14, allocated bytes for code 64 (MethodHash=d96c11f8) for method Microsoft.VisualBasic.CompilerServices.VB6File:GetQuotedString(System.String):System.String:this (FullOpts)
+; Total bytes of code 77, prolog size 8, PerfScore 16.25, instruction count 21, allocated bytes for code 77 (MethodHash=d96c11f8) for method Microsoft.VisualBasic.CompilerServices.VB6File:GetQuotedString(System.String):System.String:this (FullOpts)
 ; ============================================================

13 (26.53 % of base) - System.Composition.Hosting.Core.CompositionContract+<>c:b__14_0(System.Collections.Generic.KeyValuePair`2[System.String,System.Object]):System.String:this

 ; Assembly listing for method System.Composition.Hosting.Core.CompositionContract+<>c:<ToString>b__14_0(System.Collections.Generic.KeyValuePair`2[System.String,System.Object]):System.String:this (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
-; rsp based frame
+; rbp 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    ] (  0,  0   )     ref  ->  zero-ref    this class-hnd single-def <System.Composition.Hosting.Core.CompositionContract+<>c>
 ;* V01 arg1         [V01    ] (  0,  0   )  struct (16) zero-ref    multireg-arg ld-addr-op single-def <System.Collections.Generic.KeyValuePair`2[System.String,System.Object]>
 ;# V02 OutArgs      [V02    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
 ;* V03 tmp1         [V03    ] (  0,  0   )     ref  ->  zero-ref    class-hnd exact "impAppendStmt" <System.String>
 ;  V04 tmp2         [V04,T00] (  2,  2   )     ref  ->  rbx         single-def "field V01.key (fldOffset=0x0)" P-INDEP
 ;  V05 tmp3         [V05,T01] (  2,  2   )     ref  ->  rdx         single-def "field V01.value (fldOffset=0x8)" P-INDEP
 ;  V06 tmp4         [V06,T02] (  2,  4   )     ref  ->  rdx         single-def "argument with side effect"
 ;
-; Lcl frame size = 0
+; Lcl frame size = 8
 
 G_M10410_IG01:
+       push     rbp
        push     rbx
+       push     rax
+       lea      rbp, [rsp+0x10]
        mov      rbx, rsi
-						;; size=4 bbWeight=1 PerfScore 1.25
+						;; size=11 bbWeight=1 PerfScore 3.75
 G_M10410_IG02:
        mov      rdi, rdx
        mov      rax, 0xD1FFAB1E      ; code for System.Composition.Runtime.Util.Formatters:Format(System.Object):System.String
        call     [rax]System.Composition.Runtime.Util.Formatters:Format(System.Object):System.String
        mov      rdx, rax
        mov      rdi, rbx
        mov      rsi, 0xD1FFAB1E      ; ' = '
        mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String,System.String):System.String
-						;; size=41 bbWeight=1 PerfScore 4.50
+       call     [rax]System.String:Concat(System.String,System.String,System.String):System.String
+       nop      
+						;; size=44 bbWeight=1 PerfScore 7.75
 G_M10410_IG03:
+       add      rsp, 8
        pop      rbx
-       tail.jmp [rax]System.String:Concat(System.String,System.String,System.String):System.String
-						;; size=4 bbWeight=1 PerfScore 2.50
+       pop      rbp
+       ret      
+						;; size=7 bbWeight=1 PerfScore 2.25
 
-; Total bytes of code 49, prolog size 1, PerfScore 8.25, instruction count 11, allocated bytes for code 49 (MethodHash=1d8ad755) for method System.Composition.Hosting.Core.CompositionContract+<>c:<ToString>b__14_0(System.Collections.Generic.KeyValuePair`2[System.String,System.Object]):System.String:this (FullOpts)
+; Total bytes of code 62, prolog size 8, PerfScore 13.75, instruction count 18, allocated bytes for code 62 (MethodHash=1d8ad755) for method System.Composition.Hosting.Core.CompositionContract+<>c:<ToString>b__14_0(System.Collections.Generic.KeyValuePair`2[System.String,System.Object]):System.String:this (FullOpts)
 ; ============================================================

13 (16.88 % of base) - System.Diagnostics.Activity:get_DebuggerDisplayString():System.String:this

 ; Assembly listing for method System.Diagnostics.Activity:get_DebuggerDisplayString():System.String:this (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
-; rsp based frame
+; rbp based frame
 ; partially interruptible
 ; No PGO data
 ; 0 inlinees with PGO data; 1 single block inlinees; 0 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 this         [V00,T00] (  4,  4   )     ref  ->  rbx         this class-hnd single-def <System.Diagnostics.Activity>
 ;  V01 loc0         [V01,T01] (  3,  3   )     ref  ->  rax         class-hnd exact single-def <System.String>
 ;# V02 OutArgs      [V02    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
 ;* V03 tmp1         [V03    ] (  0,  0   )     ref  ->  zero-ref    single-def
 ;  V04 tmp2         [V04,T02] (  2,  2   )     ref  ->  rsi         single-def
 ;* V05 tmp3         [V05    ] (  0,  0   )     ref  ->  zero-ref    single-def
 ;* V06 tmp4         [V06    ] (  0,  0   )     ref  ->  zero-ref    single-def
 ;* V07 tmp5         [V07    ] (  0,  0   )     ref  ->  zero-ref    single-def
 ;* V08 tmp6         [V08    ] (  0,  0   )     ref  ->  zero-ref    single-def
 ;  V09 tmp7         [V09,T03] (  2,  2   )     ref  ->  rcx        
 ;
-; Lcl frame size = 0
+; Lcl frame size = 8
 
 G_M11490_IG01:
+       push     rbp
        push     rbx
+       push     rax
+       lea      rbp, [rsp+0x10]
        mov      rbx, rdi
-						;; size=4 bbWeight=1 PerfScore 1.25
+						;; size=11 bbWeight=1 PerfScore 3.75
 G_M11490_IG02:
        mov      rdi, rbx
        mov      rax, 0xD1FFAB1E      ; code for System.Diagnostics.Activity:get_Id():System.String:this
        call     [rax]System.Diagnostics.Activity:get_Id():System.String:this
        mov      rsi, gword ptr [rbx+0x80]
        mov      rcx, 0xD1FFAB1E      ; '(null)'
        test     rax, rax
        cmovne   rcx, rax
        mov      rdi, 0xD1FFAB1E      ; 'OperationName = '
        mov      rdx, 0xD1FFAB1E      ; ', Id = '
        mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String,System.String,System.String):System.String
-						;; size=69 bbWeight=1 PerfScore 7.25
+       call     [rax]System.String:Concat(System.String,System.String,System.String,System.String):System.String
+       nop      
+						;; size=72 bbWeight=1 PerfScore 10.50
 G_M11490_IG03:
+       add      rsp, 8
        pop      rbx
-       tail.jmp [rax]System.String:Concat(System.String,System.String,System.String,System.String):System.String
-						;; size=4 bbWeight=1 PerfScore 2.50
+       pop      rbp
+       ret      
+						;; size=7 bbWeight=1 PerfScore 2.25
 
-; Total bytes of code 77, prolog size 1, PerfScore 11.00, instruction count 14, allocated bytes for code 77 (MethodHash=f3ded31d) for method System.Diagnostics.Activity:get_DebuggerDisplayString():System.String:this (FullOpts)
+; Total bytes of code 90, prolog size 8, PerfScore 16.50, instruction count 21, allocated bytes for code 90 (MethodHash=f3ded31d) for method System.Diagnostics.Activity:get_DebuggerDisplayString():System.String: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/d2c54bf01f825a4416e53cf636afa212

[MihuBot]

Top method improvements

-111 (-27.61 % of base) - Microsoft.VisualBasic.CompilerServices.Utils:FieldToString(System.Reflection.FieldInfo):System.String

 ; Assembly listing for method Microsoft.VisualBasic.CompilerServices.Utils:FieldToString(System.Reflection.FieldInfo):System.String (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; 5 single block inlinees; 0 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 arg0         [V00,T00] ( 10,  8   )     ref  ->  rbx         class-hnd single-def <System.Reflection.FieldInfo>
-;  V01 loc0         [V01,T02] (  7,  4.50)     ref  ->  r14         class-hnd <System.String>
-;  V02 loc1         [V02,T09] (  2,  2   )     ref  ->  [rbp-0x30]  class-hnd spill-single-def <System.Type>
+;  V01 loc0         [V01,T01] (  8,  5   )     ref  ->  r15         class-hnd <System.String>
+;  V02 loc1         [V02,T08] (  2,  2   )     ref  ->  r12         class-hnd single-def <System.Type>
 ;# V03 OutArgs      [V03    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
-;  V04 tmp1         [V04,T04] (  2,  4   )     ref  ->  rsi         single-def "argument with side effect"
-;  V05 tmp2         [V05,T05] (  2,  4   )     ref  ->  rdi         single-def "argument with side effect"
-;  V06 tmp3         [V06,T06] (  2,  4   )     ref  ->  rbx         single-def "argument with side effect"
-;  V07 tmp4         [V07,T07] (  2,  4   )     ref  ->  rsi         single-def "argument with side effect"
-;  V08 cse0         [V08,T01] (  7,  5   )    long  ->  r12         "CSE #02: aggressive"
-;  V09 cse1         [V09,T08] (  3,  3   )    long  ->  r13         "CSE #01: aggressive"
-;  V10 cse2         [V10,T03] (  7,  4.50)     ref  ->  r15         "CSE #03: aggressive"
+;  V04 tmp1         [V04,T03] (  2,  4   )     ref  ->  rsi         single-def "argument with side effect"
+;  V05 tmp2         [V05,T04] (  2,  4   )     ref  ->  rdi         single-def "argument with side effect"
+;  V06 tmp3         [V06,T05] (  2,  4   )     ref  ->  rbx         single-def "argument with side effect"
+;  V07 tmp4         [V07,T06] (  2,  4   )     ref  ->  rsi         single-def "argument with side effect"
+;  V08 cse0         [V08,T02] (  7,  5   )    long  ->  r13         "CSE #02: aggressive"
+;  V09 cse1         [V09,T07] (  3,  3   )    long  ->  r14         "CSE #01: aggressive"
+;  V10 cse2         [V10,T09] (  2,  2   )     ref  ->  r15         "CSE #03: aggressive"
 ;
 ; Lcl frame size = 8
 
 G_M23625_IG01:
        push     rbp
        push     r15
        push     r14
        push     r13
        push     r12
        push     rbx
        push     rax
        lea      rbp, [rsp+0x30]
        mov      rbx, rdi
 						;; size=19 bbWeight=1 PerfScore 7.75
 G_M23625_IG02:
        mov      r15, 0xD1FFAB1E      ; ''
-       mov      r14, r15
        mov      rdi, rbx
-       mov      r13, qword ptr [rbx]
-       mov      r12, qword ptr [r13+0x50]
-       call     [r12+0x18]System.Reflection.FieldInfo:get_FieldType():System.Type:this
-       mov      gword ptr [rbp-0x30], rax
+       mov      r14, qword ptr [rbx]
+       mov      r13, qword ptr [r14+0x50]
+       call     [r13+0x18]System.Reflection.FieldInfo:get_FieldType():System.Type:this
+       mov      r12, rax
        mov      rdi, rbx
-       call     [r12+0x10]System.Reflection.FieldInfo:get_Attributes():int:this
+       call     [r13+0x10]System.Reflection.FieldInfo:get_Attributes():int:this
        and      eax, 7
        cmp      eax, 6
-       je       G_M23625_IG07
-						;; size=52 bbWeight=1 PerfScore 13.50
+       je       SHORT G_M23625_IG07
+						;; size=42 bbWeight=1 PerfScore 12.50
 G_M23625_IG03:
        mov      rdi, rbx
-       call     [r12+0x10]System.Reflection.FieldInfo:get_Attributes():int:this
+       call     [r13+0x10]System.Reflection.FieldInfo:get_Attributes():int:this
        and      eax, 7
        cmp      eax, 1
-       je       G_M23625_IG06
+       je       SHORT G_M23625_IG06
        mov      rdi, rbx
-       call     [r12+0x10]System.Reflection.FieldInfo:get_Attributes():int:this
+       call     [r13+0x10]System.Reflection.FieldInfo:get_Attributes():int:this
        and      eax, 7
        cmp      eax, 3
        je       SHORT G_M23625_IG05
        mov      rdi, rbx
-       call     [r12+0x10]System.Reflection.FieldInfo:get_Attributes():int:this
+       call     [r13+0x10]System.Reflection.FieldInfo:get_Attributes():int:this
        and      eax, 7
        cmp      eax, 4
        je       SHORT G_M23625_IG04
        mov      rdi, rbx
-       call     [r12+0x10]System.Reflection.FieldInfo:get_Attributes():int:this
+       call     [r13+0x10]System.Reflection.FieldInfo:get_Attributes():int:this
        and      eax, 7
+       mov      rdi, 0xD1FFAB1E      ; 'Protected Friend '
        cmp      eax, 5
-       jne      G_M23625_IG08
-       mov      rdi, r15
-       mov      rsi, 0xD1FFAB1E      ; 'Protected Friend '
-       mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String):System.String
-       call     [rax]System.String:Concat(System.String,System.String):System.String
-       mov      r14, rax
+       cmove    r15, rdi
        jmp      SHORT G_M23625_IG08
-						;; size=102 bbWeight=0.50 PerfScore 12.50
+						;; size=74 bbWeight=0.50 PerfScore 10.38
 G_M23625_IG04:
-       mov      rdi, r15
-       mov      rsi, 0xD1FFAB1E      ; 'Protected '
-       mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String):System.String
-       call     [rax]System.String:Concat(System.String,System.String):System.String
-       mov      r14, rax
+       mov      r15, 0xD1FFAB1E      ; 'Protected '
        jmp      SHORT G_M23625_IG08
-						;; size=30 bbWeight=0.50 PerfScore 3.00
+						;; size=12 bbWeight=0.50 PerfScore 1.12
 G_M23625_IG05:
-       mov      rdi, r15
-       mov      rsi, 0xD1FFAB1E      ; 'Friend '
-       mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String):System.String
-       call     [rax]System.String:Concat(System.String,System.String):System.String
-       mov      r14, rax
+       mov      r15, 0xD1FFAB1E      ; 'Friend '
        jmp      SHORT G_M23625_IG08
-						;; size=30 bbWeight=0.50 PerfScore 3.00
+						;; size=12 bbWeight=0.50 PerfScore 1.12
 G_M23625_IG06:
-       mov      rdi, r15
-       mov      rsi, 0xD1FFAB1E      ; 'Private '
-       mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String):System.String
-       call     [rax]System.String:Concat(System.String,System.String):System.String
-       mov      r14, rax
+       mov      r15, 0xD1FFAB1E      ; 'Private '
        jmp      SHORT G_M23625_IG08
-						;; size=30 bbWeight=0.50 PerfScore 3.00
+						;; size=12 bbWeight=0.50 PerfScore 1.12
 G_M23625_IG07:
-       mov      rdi, r15
-       mov      rsi, 0xD1FFAB1E      ; 'Public '
-       mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String):System.String
-       call     [rax]System.String:Concat(System.String,System.String):System.String
-       mov      r14, rax
-						;; size=28 bbWeight=0.50 PerfScore 2.00
+       mov      r15, 0xD1FFAB1E      ; 'Public '
+						;; size=10 bbWeight=0.50 PerfScore 0.12
 G_M23625_IG08:
        mov      rdi, rbx
-       mov      rax, qword ptr [r13+0x40]
+       mov      rax, qword ptr [r14+0x40]
        call     [rax+0x30]System.Reflection.MemberInfo:get_Name():System.String:this
        mov      rsi, rax
-       mov      rdi, r14
+       mov      rdi, r15
        mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String):System.String
        call     [rax]System.String:Concat(System.String,System.String):System.String
        mov      rdi, rax
        mov      rsi, 0xD1FFAB1E      ; ' As '
        mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String):System.String
        call     [rax]System.String:Concat(System.String,System.String):System.String
        mov      rbx, rax
-       mov      rdi, gword ptr [rbp-0x30]
+       mov      rdi, r12
        mov      esi, 1
        mov      rax, 0xD1FFAB1E      ; code for Microsoft.VisualBasic.CompilerServices.Utils:VBFriendlyNameOfType(System.Type,bool):System.String
        call     [rax]Microsoft.VisualBasic.CompilerServices.Utils:VBFriendlyNameOfType(System.Type,bool):System.String
        mov      rsi, rax
        mov      rdi, rbx
        mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String):System.String
        call     [rax]System.String:Concat(System.String,System.String):System.String
        nop      
-						;; size=96 bbWeight=1 PerfScore 21.50
+						;; size=95 bbWeight=1 PerfScore 20.75
 G_M23625_IG09:
        add      rsp, 8
        pop      rbx
        pop      r12
        pop      r13
        pop      r14
        pop      r15
        pop      rbp
        ret      
 						;; size=15 bbWeight=1 PerfScore 4.25
 
-; Total bytes of code 402, prolog size 16, PerfScore 70.50, instruction count 99, allocated bytes for code 402 (MethodHash=ffd0a3b6) for method Microsoft.VisualBasic.CompilerServices.Utils:FieldToString(System.Reflection.FieldInfo):System.String (FullOpts)
+; Total bytes of code 291, prolog size 16, PerfScore 59.12, instruction count 78, allocated bytes for code 291 (MethodHash=ffd0a3b6) for method Microsoft.VisualBasic.CompilerServices.Utils:FieldToString(System.Reflection.FieldInfo):System.String (FullOpts)
 ; ============================================================

-40 (-8.11 % of base) - System.String:Concat(System.String,System.String,System.String,System.String):System.String

 ; Assembly listing for method System.String:Concat(System.String,System.String,System.String,System.String):System.String (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
 ; rbp based frame
-; fully interruptible
+; partially interruptible
 ; No PGO data
 ; 0 inlinees with PGO data; 4 single block inlinees; 8 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 arg0         [V00,T01] (  8,  5.50)     ref  ->  r15         class-hnd single-def <System.String>
 ;  V01 arg1         [V01,T02] (  8,  5   )     ref  ->  r14         class-hnd single-def <System.String>
 ;  V02 arg2         [V02,T03] (  8,  5   )     ref  ->  r13         class-hnd single-def <System.String>
 ;  V03 arg3         [V03,T00] ( 10,  6   )     ref  ->  rbx         class-hnd single-def <System.String>
 ;# V04 OutArgs      [V04    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
-;  V05 tmp1         [V05,T05] (  3,  3   )    long  ->  rdi         "dup spill"
+;  V05 tmp1         [V05,T06] (  3,  3   )    long  ->  rdi         "dup spill"
 ;* V06 tmp2         [V06    ] (  0,  0   )    long  ->  zero-ref   
-;  V07 tmp3         [V07,T04] (  4,  4   )     ref  ->  [rbp-0x40]  class-hnd exact spill-single-def "dup spill" <System.String>
+;  V07 tmp3         [V07,T05] (  4,  4   )     ref  ->  [rbp-0x40]  class-hnd exact spill-single-def "dup spill" <System.String>
 ;* V08 tmp4         [V08,T13] (  0,  0   )   ubyte  ->  zero-ref    "Inline return value spill temp"
 ;* V09 tmp5         [V09,T14] (  0,  0   )   ubyte  ->  zero-ref    "Inline return value spill temp"
 ;* V10 tmp6         [V10,T15] (  0,  0   )   ubyte  ->  zero-ref    "Inline return value spill temp"
 ;* V11 tmp7         [V11,T16] (  0,  0   )   ubyte  ->  zero-ref    "Inline return value spill temp"
 ;* V12 tmp8         [V12    ] (  0,  0   )   byref  ->  zero-ref    "Inlining Arg"
 ;* V13 tmp9         [V13    ] (  0,  0   )   byref  ->  zero-ref    "Inlining Arg"
 ;* V14 tmp10        [V14    ] (  0,  0   )    long  ->  zero-ref    "Inlining Arg"
 ;* V15 tmp11        [V15    ] (  0,  0   )     int  ->  zero-ref    "Inlining Arg"
 ;* V16 tmp12        [V16    ] (  0,  0   )   byref  ->  zero-ref    "Inlining Arg"
 ;* V17 tmp13        [V17    ] (  0,  0   )   byref  ->  zero-ref    "Inlining Arg"
 ;* V18 tmp14        [V18    ] (  0,  0   )    long  ->  zero-ref    "Inlining Arg"
 ;* V19 tmp15        [V19    ] (  0,  0   )     int  ->  zero-ref    "Inlining Arg"
 ;* V20 tmp16        [V20    ] (  0,  0   )   byref  ->  zero-ref    "Inlining Arg"
 ;* V21 tmp17        [V21    ] (  0,  0   )   byref  ->  zero-ref    "Inlining Arg"
 ;* V22 tmp18        [V22    ] (  0,  0   )    long  ->  zero-ref    "Inlining Arg"
 ;* V23 tmp19        [V23    ] (  0,  0   )     int  ->  zero-ref    "Inlining Arg"
 ;* V24 tmp20        [V24    ] (  0,  0   )   byref  ->  zero-ref    "Inlining Arg"
 ;* V25 tmp21        [V25    ] (  0,  0   )   byref  ->  zero-ref    "Inlining Arg"
 ;* V26 tmp22        [V26    ] (  0,  0   )    long  ->  zero-ref    "Inlining Arg"
-;  V27 tmp23        [V27,T10] (  2,  2   )     ref  ->  rax         single-def "Single return block return value"
+;  V27 tmp23        [V27,T04] (  6,  7   )     ref  ->  r15         "Single return block return value"
 ;  V28 cse0         [V28,T11] (  3,  1.50)     int  ->  r12         "CSE #07: moderate"
 ;  V29 cse1         [V29,T12] (  3,  1.50)    long  ->  [rbp-0x30]  spill-single-def "CSE #06: moderate"
-;  V30 cse2         [V30,T07] (  5,  2.50)     int  ->  r12         "CSE #01: moderate"
-;  V31 cse3         [V31,T08] (  5,  2.50)     int  ->  [rbp-0x34]  spill-single-def "CSE #02: moderate"
-;  V32 cse4         [V32,T09] (  5,  2.50)     int  ->  [rbp-0x38]  spill-single-def "CSE #03: moderate"
-;  V33 cse5         [V33,T06] (  5,  2.50)   byref  ->  [rbp-0x48]  spill-single-def "CSE #05: moderate"
+;  V30 cse2         [V30,T08] (  5,  2.50)     int  ->  r12         "CSE #01: moderate"
+;  V31 cse3         [V31,T09] (  5,  2.50)     int  ->  [rbp-0x34]  spill-single-def "CSE #02: moderate"
+;  V32 cse4         [V32,T10] (  5,  2.50)     int  ->  [rbp-0x38]  spill-single-def "CSE #03: moderate"
+;  V33 cse5         [V33,T07] (  5,  2.50)   byref  ->  [rbp-0x48]  spill-single-def "CSE #05: moderate"
 ;
 ; Lcl frame size = 40
 
 G_M26691_IG01:
        push     rbp
        push     r15
        push     r14
        push     r13
        push     r12
        push     rbx
        sub      rsp, 40
        lea      rbp, [rsp+0x50]
        mov      r15, rdi
        mov      r14, rsi
        mov      r13, rdx
        mov      rbx, rcx
 						;; size=31 bbWeight=1 PerfScore 7.75
 G_M26691_IG02:
        test     r15, r15
-       je       G_M26691_IG12
+       je       G_M26691_IG08
 						;; size=9 bbWeight=1 PerfScore 1.25
 G_M26691_IG03:
        mov      r12d, dword ptr [r15+0x08]
        test     r12d, r12d
-       je       G_M26691_IG12
+       je       G_M26691_IG08
        test     r14, r14
-       je       G_M26691_IG10
+       je       G_M26691_IG07
        mov      eax, dword ptr [r14+0x08]
        mov      dword ptr [rbp-0x34], eax
        test     eax, eax
-       je       G_M26691_IG10
+       je       G_M26691_IG07
        test     r13, r13
-       je       G_M26691_IG08
+       je       G_M26691_IG06
        mov      ecx, dword ptr [r13+0x08]
        mov      dword ptr [rbp-0x38], ecx
        test     ecx, ecx
-       je       G_M26691_IG08
+       je       G_M26691_IG06
        test     rbx, rbx
-       je       G_M26691_IG06
+       je       G_M26691_IG05
        cmp      dword ptr [rbx+0x08], 0
-       je       G_M26691_IG06
+       je       G_M26691_IG05
        mov      edx, r12d
        mov      qword ptr [rbp-0x30], rdx
        mov      edi, eax
        add      rdi, rdx
        mov      esi, ecx
        add      rdi, rsi
        mov      esi, dword ptr [rbx+0x08]
        add      rdi, rsi
        cmp      rdi, 0xD1FFAB1E
-       jg       G_M26691_IG14
+       jg       G_M26691_IG11
        movsxd   rdi, edi
        mov      rsi, 0xD1FFAB1E      ; code for System.String:FastAllocateString(nint):System.String
        call     [rsi]System.String:FastAllocateString(nint):System.String
        mov      gword ptr [rbp-0x40], rax
        cmp      byte  ptr [rax], al
        lea      rcx, bword ptr [rax+0x0C]
        mov      bword ptr [rbp-0x48], rcx
        mov      rdi, rcx
        mov      edx, r12d
        add      rdx, rdx
        lea      rsi, bword ptr [r15+0x0C]
        mov      r8, 0xD1FFAB1E      ; code for System.SpanHelpers:Memmove(byref,byref,nuint)
        call     [r8]System.SpanHelpers:Memmove(byref,byref,nuint)
        mov      r15, bword ptr [rbp-0x48]
        mov      rdi, qword ptr [rbp-0x30]
        lea      rdi, bword ptr [r15+2*rdi]
        mov      edx, dword ptr [rbp-0x34]
        add      rdx, rdx
        lea      rsi, bword ptr [r14+0x0C]
        mov      rcx, 0xD1FFAB1E      ; code for System.SpanHelpers:Memmove(byref,byref,nuint)
 						;; size=203 bbWeight=0.50 PerfScore 20.62
 G_M26691_IG04:
        call     [rcx]System.SpanHelpers:Memmove(byref,byref,nuint)
        add      r12d, dword ptr [rbp-0x34]
        movsxd   rdi, r12d
        lea      rdi, bword ptr [r15+2*rdi]
        mov      r14d, dword ptr [rbp-0x38]
        mov      edx, r14d
        add      rdx, rdx
        lea      rsi, bword ptr [r13+0x0C]
        mov      rax, 0xD1FFAB1E      ; code for System.SpanHelpers:Memmove(byref,byref,nuint)
        call     [rax]System.SpanHelpers:Memmove(byref,byref,nuint)
        add      r14d, r12d
        movsxd   rdi, r14d
        lea      rdi, bword ptr [r15+2*rdi]
        mov      edx, dword ptr [rbx+0x08]
        add      rdx, rdx
        lea      rsi, bword ptr [rbx+0x0C]
        mov      rax, 0xD1FFAB1E      ; code for System.SpanHelpers:Memmove(byref,byref,nuint)
        call     [rax]System.SpanHelpers:Memmove(byref,byref,nuint)
-       mov      r13, gword ptr [rbp-0x40]
-       mov      rax, r13
-						;; size=78 bbWeight=0.50 PerfScore 9.12
+       mov      r15, gword ptr [rbp-0x40]
+       jmp      SHORT G_M26691_IG09
+						;; size=77 bbWeight=0.50 PerfScore 10.00
 G_M26691_IG05:
+       mov      rdi, r15
+       mov      rsi, r14
+       mov      rdx, r13
+       mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String,System.String):System.String
+       call     [rax]System.String:Concat(System.String,System.String,System.String):System.String
+       mov      r15, rax
+       jmp      SHORT G_M26691_IG09
+						;; size=26 bbWeight=0.50 PerfScore 3.12
+G_M26691_IG06:
+       mov      rdi, r15
+       mov      rsi, r14
+       mov      rdx, rbx
+       mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String,System.String):System.String
+       call     [rax]System.String:Concat(System.String,System.String,System.String):System.String
+       mov      r15, rax
+       jmp      SHORT G_M26691_IG09
+						;; size=26 bbWeight=0.50 PerfScore 3.12
+G_M26691_IG07:
+       mov      rdi, r15
+       mov      rsi, r13
+       mov      rdx, rbx
+       mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String,System.String):System.String
+       call     [rax]System.String:Concat(System.String,System.String,System.String):System.String
+       mov      r15, rax
+       jmp      SHORT G_M26691_IG09
+						;; size=26 bbWeight=0.50 PerfScore 3.12
+G_M26691_IG08:
+       mov      rdi, r14
+       mov      rsi, r13
+       mov      rdx, rbx
+       mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String,System.String):System.String
+       call     [rax]System.String:Concat(System.String,System.String,System.String):System.String
+       mov      r15, rax
+						;; size=24 bbWeight=0.50 PerfScore 2.12
+G_M26691_IG09:
+       mov      rax, r15
+						;; size=3 bbWeight=1 PerfScore 0.25
+G_M26691_IG10:
        add      rsp, 40
        pop      rbx
        pop      r12
        pop      r13
        pop      r14
        pop      r15
        pop      rbp
        ret      
-						;; size=15 bbWeight=0.50 PerfScore 2.12
-G_M26691_IG06:
-       mov      rdi, r15
-       mov      rsi, r14
-       mov      rdx, r13
-       mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String,System.String):System.String
-						;; size=19 bbWeight=0.50 PerfScore 0.50
-G_M26691_IG07:
-       add      rsp, 40
-       pop      rbx
-       pop      r12
-       pop      r13
-       pop      r14
-       pop      r15
-       pop      rbp
-       tail.jmp [rax]System.String:Concat(System.String,System.String,System.String):System.String
-						;; size=17 bbWeight=0.50 PerfScore 2.62
-G_M26691_IG08:
-       mov      rdi, r15
-       mov      rsi, r14
-       mov      rdx, rbx
-       mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String,System.String):System.String
-						;; size=19 bbWeight=0.50 PerfScore 0.50
-G_M26691_IG09:
-       add      rsp, 40
-       pop      rbx
-       pop      r12
-       pop      r13
-       pop      r14
-       pop      r15
-       pop      rbp
-       tail.jmp [rax]System.String:Concat(System.String,System.String,System.String):System.String
-						;; size=17 bbWeight=0.50 PerfScore 2.62
-G_M26691_IG10:
-       mov      rdi, r15
-       mov      rsi, r13
-       mov      rdx, rbx
-       mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String,System.String):System.String
-						;; size=19 bbWeight=0.50 PerfScore 0.50
+						;; size=15 bbWeight=1 PerfScore 4.25
 G_M26691_IG11:
-       add      rsp, 40
-       pop      rbx
-       pop      r12
-       pop      r13
-       pop      r14
-       pop      r15
-       pop      rbp
-       tail.jmp [rax]System.String:Concat(System.String,System.String,System.String):System.String
-						;; size=17 bbWeight=0.50 PerfScore 2.62
-G_M26691_IG12:
-       mov      rdi, r14
-       mov      rsi, r13
-       mov      rdx, rbx
-       mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String,System.String):System.String
-						;; size=19 bbWeight=0.50 PerfScore 0.50
-G_M26691_IG13:
-       add      rsp, 40
-       pop      rbx
-       pop      r12
-       pop      r13
-       pop      r14
-       pop      r15
-       pop      rbp
-       tail.jmp [rax]System.String:Concat(System.String,System.String,System.String):System.String
-						;; size=17 bbWeight=0.50 PerfScore 2.62
-G_M26691_IG14:
        mov      rax, 0xD1FFAB1E      ; code for System.ThrowHelper:ThrowOutOfMemoryException_StringTooLong()
        call     [rax]System.ThrowHelper:ThrowOutOfMemoryException_StringTooLong()
        int3     
 						;; size=13 bbWeight=0 PerfScore 0.00
 
-; Total bytes of code 493, prolog size 31, PerfScore 53.38, instruction count 142, allocated bytes for code 493 (MethodHash=389697bc) for method System.String:Concat(System.String,System.String,System.String,System.String):System.String (FullOpts)
+; Total bytes of code 453, prolog size 19, PerfScore 55.62, instruction count 122, allocated bytes for code 453 (MethodHash=389697bc) for method System.String:Concat(System.String,System.String,System.String,System.String):System.String (FullOpts)
 ; ============================================================

-35 (-5.15 % of base) - System.Runtime.CompilerServices.ContractHelper:GetFailureMessage(int,System.String):System.String

 ; Assembly listing for method System.Runtime.CompilerServices.ContractHelper:GetFailureMessage(int,System.String):System.String (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; 13 single block inlinees; 8 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 arg0         [V00,T01] (  4,  3.86)     int  ->  rdi         single-def
 ;  V01 arg1         [V01,T00] ( 10,  6.50)     ref  ->  rbx         class-hnd single-def <System.String>
 ;  V02 loc0         [V02,T02] (  7,  4   )   ubyte  ->  r15        
 ;# V03 OutArgs      [V03    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
 ;  V04 tmp1         [V04,T04] (  3,  2   )   ubyte  ->  rax         "Inline return value spill temp"
 ;  V05 tmp2         [V05,T12] (  3,  1.50)     ref  ->  rbx         class-hnd exact single-def "Inline stloc first use temp" <System.String>
 ;  V06 tmp3         [V06,T03] (  4,  4   )     ref  ->  rbx         class-hnd "Inlining Arg" <System.String>
 ;* V07 tmp4         [V07    ] (  0,  0   )   ubyte  ->  zero-ref    "Inline return value spill temp"
 ;  V08 tmp5         [V08,T13] (  2,  1   )     ref  ->  rbx         class-hnd exact single-def "Inline return value spill temp" <System.String>
 ;* V09 tmp6         [V09    ] (  0,  0   )     ref  ->  zero-ref    class-hnd single-def "Inline stloc first use temp" <System.String>
 ;* V10 tmp7         [V10    ] (  0,  0   )   ubyte  ->  zero-ref    "Inline return value spill temp"
 ;* V11 tmp8         [V11    ] (  0,  0   )   ubyte  ->  zero-ref    "Inline return value spill temp"
 ;* V12 tmp9         [V12    ] (  0,  0   )     ref  ->  zero-ref    "Single return block return value"
 ;  V13 tmp10        [V13,T05] (  2,  2   )     ref  ->  rdx         single-def "argument with side effect"
 ;  V14 tmp11        [V14,T06] (  2,  2   )     ref  ->  rdi         single-def "argument with side effect"
 ;  V15 tmp12        [V15,T07] (  2,  2   )     ref  ->  rdi         single-def "argument with side effect"
 ;  V16 tmp13        [V16,T08] (  2,  2   )     ref  ->  rdi         single-def "argument with side effect"
 ;  V17 tmp14        [V17,T09] (  2,  2   )     ref  ->  rdi         single-def "argument with side effect"
 ;  V18 tmp15        [V18,T10] (  2,  2   )     ref  ->  rdi         single-def "argument with side effect"
 ;  V19 tmp16        [V19,T11] (  2,  2   )     ref  ->  rdi         single-def "argument with side effect"
 ;
 ; Lcl frame size = 0
 
 G_M56247_IG01:
        push     rbp
        push     r15
        push     rbx
        lea      rbp, [rsp+0x10]
        mov      rbx, rsi
 						;; size=12 bbWeight=1 PerfScore 3.75
 G_M56247_IG02:
        test     rbx, rbx
        jne      SHORT G_M56247_IG04
 						;; size=5 bbWeight=1 PerfScore 1.25
 G_M56247_IG03:
        mov      eax, 1
        jmp      SHORT G_M56247_IG05
 						;; size=7 bbWeight=0.50 PerfScore 1.12
 G_M56247_IG04:
        cmp      dword ptr [rbx+0x08], 0
        sete     al
        movzx    rax, al
 						;; size=10 bbWeight=0.50 PerfScore 1.38
 G_M56247_IG05:
        test     eax, eax
        sete     r15b
        movzx    r15, r15b
        cmp      edi, 5
        ja       G_M56247_IG29
 						;; size=19 bbWeight=1 PerfScore 2.25
 G_M56247_IG06:
        mov      edi, edi
        lea      rax, [reloc @RWD00]
        mov      eax, dword ptr [rax+4*rdi]
        lea      rcx, G_M56247_IG02
        add      rax, rcx
        jmp      rax
 						;; size=24 bbWeight=0.86 PerfScore 5.14
 G_M56247_IG07:
        test     r15d, r15d
        je       G_M56247_IG31
        mov      rdi, 0xD1FFAB1E      ; 'AssumptionFailed_Cnd'
        mov      rax, 0xD1FFAB1E      ; code for System.SR:GetResourceString(System.String):System.String
        call     [rax]System.SR:GetResourceString(System.String):System.String
        mov      rdi, rax
        mov      rsi, rbx
        mov      rax, 0xD1FFAB1E      ; code for System.SR:Format(System.String,System.Object):System.String
 						;; size=47 bbWeight=0.50 PerfScore 2.75
 G_M56247_IG08:
        pop      rbx
        pop      r15
        pop      rbp
        tail.jmp [rax]System.SR:Format(System.String,System.Object):System.String
 						;; size=7 bbWeight=0.50 PerfScore 1.75
 G_M56247_IG09:
        test     r15d, r15d
        je       SHORT G_M56247_IG11
        mov      rdi, 0xD1FFAB1E      ; 'AssertionFailed_Cnd'
        mov      rax, 0xD1FFAB1E      ; code for System.SR:GetResourceString(System.String):System.String
        call     [rax]System.SR:GetResourceString(System.String):System.String
        mov      rdi, rax
        mov      rsi, rbx
        mov      rax, 0xD1FFAB1E      ; code for System.SR:Format(System.String,System.Object):System.String
 						;; size=43 bbWeight=0.50 PerfScore 2.75
 G_M56247_IG10:
        pop      rbx
        pop      r15
        pop      rbp
        tail.jmp [rax]System.SR:Format(System.String,System.Object):System.String
 						;; size=7 bbWeight=0.50 PerfScore 1.75
 G_M56247_IG11:
        mov      rdi, 0xD1FFAB1E      ; 'AssertionFailed'
        mov      rax, 0xD1FFAB1E      ; code for System.SR:GetResourceString(System.String):System.String
 						;; size=20 bbWeight=0.50 PerfScore 0.25
 G_M56247_IG12:
        pop      rbx
        pop      r15
        pop      rbp
        tail.jmp [rax]System.SR:GetResourceString(System.String):System.String
 						;; size=7 bbWeight=0.50 PerfScore 1.75
 G_M56247_IG13:
        test     r15d, r15d
        je       SHORT G_M56247_IG15
        mov      rdi, 0xD1FFAB1E      ; 'InvariantFailed_Cnd'
        mov      rax, 0xD1FFAB1E      ; code for System.SR:GetResourceString(System.String):System.String
        call     [rax]System.SR:GetResourceString(System.String):System.String
        mov      rdi, rax
        mov      rsi, rbx
        mov      rax, 0xD1FFAB1E      ; code for System.SR:Format(System.String,System.Object):System.String
 						;; size=43 bbWeight=0.50 PerfScore 2.75
 G_M56247_IG14:
        pop      rbx
        pop      r15
        pop      rbp
        tail.jmp [rax]System.SR:Format(System.String,System.Object):System.String
 						;; size=7 bbWeight=0.50 PerfScore 1.75
 G_M56247_IG15:
        mov      rdi, 0xD1FFAB1E      ; 'InvariantFailed'
        mov      rax, 0xD1FFAB1E      ; code for System.SR:GetResourceString(System.String):System.String
 						;; size=20 bbWeight=0.50 PerfScore 0.25
 G_M56247_IG16:
        pop      rbx
        pop      r15
        pop      rbp
        tail.jmp [rax]System.SR:GetResourceString(System.String):System.String
 						;; size=7 bbWeight=0.50 PerfScore 1.75
 G_M56247_IG17:
        test     r15d, r15d
        je       SHORT G_M56247_IG19
        mov      rdi, 0xD1FFAB1E      ; 'PostconditionOnExceptionFailed_Cnd'
        mov      rax, 0xD1FFAB1E      ; code for System.SR:GetResourceString(System.String):System.String
        call     [rax]System.SR:GetResourceString(System.String):System.String
        mov      rdi, rax
        mov      rsi, rbx
        mov      rax, 0xD1FFAB1E      ; code for System.SR:Format(System.String,System.Object):System.String
 						;; size=43 bbWeight=0.50 PerfScore 2.75
 G_M56247_IG18:
        pop      rbx
        pop      r15
        pop      rbp
        tail.jmp [rax]System.SR:Format(System.String,System.Object):System.String
 						;; size=7 bbWeight=0.50 PerfScore 1.75
 G_M56247_IG19:
        mov      rdi, 0xD1FFAB1E      ; 'PostconditionOnExceptionFailed'
        mov      rax, 0xD1FFAB1E      ; code for System.SR:GetResourceString(System.String):System.String
 						;; size=20 bbWeight=0.50 PerfScore 0.25
 G_M56247_IG20:
        pop      rbx
        pop      r15
        pop      rbp
        tail.jmp [rax]System.SR:GetResourceString(System.String):System.String
 						;; size=7 bbWeight=0.50 PerfScore 1.75
 G_M56247_IG21:
        test     r15d, r15d
        je       SHORT G_M56247_IG23
        mov      rdi, 0xD1FFAB1E      ; 'PostconditionFailed_Cnd'
        mov      rax, 0xD1FFAB1E      ; code for System.SR:GetResourceString(System.String):System.String
        call     [rax]System.SR:GetResourceString(System.String):System.String
        mov      rdi, rax
        mov      rsi, rbx
        mov      rax, 0xD1FFAB1E      ; code for System.SR:Format(System.String,System.Object):System.String
 						;; size=43 bbWeight=0.50 PerfScore 2.75
 G_M56247_IG22:
        pop      rbx
        pop      r15
        pop      rbp
        tail.jmp [rax]System.SR:Format(System.String,System.Object):System.String
 						;; size=7 bbWeight=0.50 PerfScore 1.75
 G_M56247_IG23:
        mov      rdi, 0xD1FFAB1E      ; 'PostconditionFailed'
        mov      rax, 0xD1FFAB1E      ; code for System.SR:GetResourceString(System.String):System.String
 						;; size=20 bbWeight=0.50 PerfScore 0.25
 G_M56247_IG24:
        pop      rbx
        pop      r15
        pop      rbp
        tail.jmp [rax]System.SR:GetResourceString(System.String):System.String
 						;; size=7 bbWeight=0.50 PerfScore 1.75
 G_M56247_IG25:
        test     r15d, r15d
        je       SHORT G_M56247_IG27
        mov      rdi, 0xD1FFAB1E      ; 'PreconditionFailed_Cnd'
        mov      rax, 0xD1FFAB1E      ; code for System.SR:GetResourceString(System.String):System.String
        call     [rax]System.SR:GetResourceString(System.String):System.String
        mov      rdi, rax
        mov      rsi, rbx
        mov      rax, 0xD1FFAB1E      ; code for System.SR:Format(System.String,System.Object):System.String
 						;; size=43 bbWeight=0.50 PerfScore 2.75
 G_M56247_IG26:
        pop      rbx
        pop      r15
        pop      rbp
        tail.jmp [rax]System.SR:Format(System.String,System.Object):System.String
 						;; size=7 bbWeight=0.50 PerfScore 1.75
 G_M56247_IG27:
        mov      rdi, 0xD1FFAB1E      ; 'PreconditionFailed'
        mov      rax, 0xD1FFAB1E      ; code for System.SR:GetResourceString(System.String):System.String
 						;; size=20 bbWeight=0.50 PerfScore 0.25
 G_M56247_IG28:
        pop      rbx
        pop      r15
        pop      rbp
        tail.jmp [rax]System.SR:GetResourceString(System.String):System.String
 						;; size=7 bbWeight=0.50 PerfScore 1.75
 G_M56247_IG29:
        mov      edi, 5
        mov      rsi, 0xD1FFAB1E      ; 'Unreachable code'
        xor      rdx, rdx
        xor      rcx, rcx
        mov      rax, 0xD1FFAB1E      ; code for System.Runtime.CompilerServices.ContractHelper:RaiseContractFailedEvent(int,System.String,System.String,System.Exception):System.String
        call     [rax]System.Runtime.CompilerServices.ContractHelper:RaiseContractFailedEvent(int,System.String,System.String,System.Exception):System.String
        mov      rbx, rax
        test     rbx, rbx
        je       SHORT G_M56247_IG31
        cmp      dword ptr [rbx+0x08], 0
        jne      SHORT G_M56247_IG30
-       mov      rdi, 0xD1FFAB1E      ; ''
-       mov      rsi, 0xD1FFAB1E      ; '  '
-       mov      rdx, 0xD1FFAB1E      ; 'Unreachable code'
-       mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String,System.String):System.String
-       call     [rax]System.String:Concat(System.String,System.String,System.String):System.String
-       mov      rbx, rax
-						;; size=90 bbWeight=0.50 PerfScore 6.50
+       mov      rbx, 0xD1FFAB1E      ; '  Unreachable code'
+						;; size=55 bbWeight=0.50 PerfScore 4.50
 G_M56247_IG30:
        mov      edi, 5
        xor      rsi, rsi
        mov      rax, 0xD1FFAB1E      ; code for System.Runtime.CompilerServices.ContractHelper:GetFailureMessage(int,System.String):System.String
        call     [rax]System.Runtime.CompilerServices.ContractHelper:GetFailureMessage(int,System.String):System.String
        mov      rdx, rax
        mov      rdi, rbx
        mov      rsi, 0xD1FFAB1E      ; ''
        mov      rax, 0xD1FFAB1E      ; code for System.Diagnostics.Debug:ContractFailure(System.String,System.String,System.String)
        call     [rax]System.Diagnostics.Debug:ContractFailure(System.String,System.String,System.String)
 						;; size=47 bbWeight=0.50 PerfScore 3.88
 G_M56247_IG31:
        mov      rdi, 0xD1FFAB1E      ; 'AssumptionFailed'
        mov      rax, 0xD1FFAB1E      ; code for System.SR:GetResourceString(System.String):System.String
 						;; size=20 bbWeight=0.50 PerfScore 0.25
 G_M56247_IG32:
        pop      rbx
        pop      r15
        pop      rbp
        tail.jmp [rax]System.SR:GetResourceString(System.String):System.String
 						;; size=7 bbWeight=0.50 PerfScore 1.75
 RWD00  	dd	G_M56247_IG25 - G_M56247_IG02
        	dd	G_M56247_IG21 - G_M56247_IG02
        	dd	G_M56247_IG17 - G_M56247_IG02
        	dd	G_M56247_IG13 - G_M56247_IG02
        	dd	G_M56247_IG09 - G_M56247_IG02
        	dd	G_M56247_IG07 - G_M56247_IG02
 
 
-; Total bytes of code 680, prolog size 12, PerfScore 64.27, instruction count 157, allocated bytes for code 680 (MethodHash=c2ae2448) for method System.Runtime.CompilerServices.ContractHelper:GetFailureMessage(int,System.String):System.String (FullOpts)
+; Total bytes of code 645, prolog size 12, PerfScore 62.27, instruction count 152, allocated bytes for code 645 (MethodHash=c2ae2448) for method System.Runtime.CompilerServices.ContractHelper:GetFailureMessage(int,System.String):System.String (FullOpts)
 ; ============================================================

-34 (-10.56 % of base) - System.Data.SimpleType:IsPlainString():bool:this

 ; Assembly listing for method System.Data.SimpleType:IsPlainString():bool: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; 7 single block inlinees; 10 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 this         [V00,T00] ( 13,  8   )     ref  ->  rbx         this class-hnd single-def <System.Data.SimpleType>
 ;# V01 OutArgs      [V01    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
 ;  V02 tmp1         [V02,T01] (  5,  7   )     ref  ->  r15         class-hnd exact single-def "impAppendStmt" <System.String>
-;  V03 tmp2         [V03,T03] (  6,  3.50)     ref  ->  rsi         class-hnd exact "Inline return value spill temp" <System.String>
+;  V03 tmp2         [V03,T03] (  4,  3   )     ref  ->  rsi         class-hnd exact "Inline return value spill temp" <System.String>
 ;  V04 tmp3         [V04,T12] (  2,  2   )   ubyte  ->  rax         "Inline return value spill temp"
 ;  V05 tmp4         [V05,T02] (  2,  4   )   byref  ->  rdi         single-def "Inlining Arg"
 ;  V06 tmp5         [V06,T15] (  2,  1   )   ubyte  ->  rax         "Inline return value spill temp"
 ;  V07 tmp6         [V07,T11] (  2,  2   )   byref  ->  rdi         single-def "impAppendStmt"
 ;* V08 tmp7         [V08,T16] (  0,  0   )   ubyte  ->  zero-ref    "Inline return value spill temp"
 ;  V09 tmp8         [V09,T04] (  3,  3   )     ref  ->  rax         class-hnd exact single-def "Inlining Arg" <System.String>
 ;* V10 tmp9         [V10,T17] (  0,  0   )   ubyte  ->  zero-ref    "Inline return value spill temp"
 ;  V11 tmp10        [V11,T05] (  3,  3   )     ref  ->  rax         class-hnd exact single-def "Inlining Arg" <System.String>
 ;* V12 tmp11        [V12,T18] (  0,  0   )   ubyte  ->  zero-ref    "Inline return value spill temp"
 ;  V13 tmp12        [V13,T06] (  3,  3   )     ref  ->  rax         class-hnd exact single-def "Inlining Arg" <System.String>
 ;* V14 tmp13        [V14,T19] (  0,  0   )   ubyte  ->  zero-ref    "Inline return value spill temp"
 ;  V15 tmp14        [V15,T07] (  3,  3   )     ref  ->  rax         class-hnd exact single-def "Inlining Arg" <System.String>
 ;* V16 tmp15        [V16,T20] (  0,  0   )   ubyte  ->  zero-ref    "Inline return value spill temp"
 ;  V17 tmp16        [V17,T08] (  3,  3   )     ref  ->  rax         class-hnd exact single-def "Inlining Arg" <System.String>
 ;* V18 tmp17        [V18,T21] (  0,  0   )   ubyte  ->  zero-ref    "Inline return value spill temp"
 ;  V19 tmp18        [V19,T09] (  3,  3   )     ref  ->  rax         class-hnd exact single-def "Inlining Arg" <System.String>
 ;  V20 tmp19        [V20,T13] (  3,  1.50)   ubyte  ->  rax         "Inline return value spill temp"
 ;  V21 tmp20        [V21,T10] (  3,  3   )     ref  ->  rax         class-hnd exact single-def "Inlining Arg" <System.String>
 ;  V22 cse0         [V22,T14] (  3,  1.50)     int  ->  rdx         "CSE #02: moderate"
 ;
 ; Lcl frame size = 0
 
 G_M16031_IG01:
        push     rbp
        push     r15
        push     rbx
        lea      rbp, [rsp+0x10]
        mov      rbx, rdi
 						;; size=12 bbWeight=1 PerfScore 3.75
 G_M16031_IG02:
        mov      rdi, gword ptr [rbx+0x08]
        mov      rax, 0xD1FFAB1E      ; code for System.Data.XSDSchema:QualifiedName(System.String):System.String
        call     [rax]System.Data.XSDSchema:QualifiedName(System.String):System.String
        mov      r15, rax
        mov      rdi, 0xD1FFAB1E
        mov      esi, 58
        mov      edx, 6
        mov      rax, 0xD1FFAB1E      ; code for System.PackedSpanHelpers:Contains(byref,short,int):bool
        call     [rax]System.PackedSpanHelpers:Contains(byref,short,int):bool
+       mov      rsi, 0xD1FFAB1E      ; 'string'
+       mov      rdx, 0xD1FFAB1E      ; 'xs:string'
        test     eax, eax
-       je       SHORT G_M16031_IG04
-						;; size=55 bbWeight=1 PerfScore 10.75
-G_M16031_IG03:
-       mov      rsi, 0xD1FFAB1E      ; 'string'
-       jmp      SHORT G_M16031_IG05
-						;; size=12 bbWeight=0.50 PerfScore 1.12
-G_M16031_IG04:
-       mov      rdi, 0xD1FFAB1E      ; 'xs:'
-       mov      rsi, 0xD1FFAB1E      ; 'string'
-       mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String):System.String
-       call     [rax]System.String:Concat(System.String,System.String):System.String
-       mov      rsi, rax
-						;; size=35 bbWeight=0.50 PerfScore 2.00
-G_M16031_IG05:
+       cmove    rsi, rdx
        cmp      r15, rsi
-       je       SHORT G_M16031_IG07
-						;; size=5 bbWeight=1 PerfScore 1.25
-G_M16031_IG06:
+       je       SHORT G_M16031_IG04
+						;; size=82 bbWeight=1 PerfScore 12.00
+G_M16031_IG03:
        test     r15, r15
-       je       G_M16031_IG13
-       test     rsi, rsi
-       je       G_M16031_IG13
+       je       G_M16031_IG10
        mov      edx, dword ptr [r15+0x08]
        cmp      edx, dword ptr [rsi+0x08]
-       jne      G_M16031_IG13
+       jne      G_M16031_IG10
        lea      rdi, bword ptr [r15+0x0C]
        add      edx, edx
        add      rsi, 12
        mov      rax, 0xD1FFAB1E      ; code for System.SpanHelpers:SequenceEqual(byref,byref,nuint):bool
        call     [rax]System.SpanHelpers:SequenceEqual(byref,byref,nuint):bool
        test     eax, eax
-       je       SHORT G_M16031_IG13
-						;; size=57 bbWeight=0.50 PerfScore 6.50
-G_M16031_IG07:
+       je       SHORT G_M16031_IG10
+						;; size=48 bbWeight=0.50 PerfScore 5.88
+G_M16031_IG04:
        mov      rax, gword ptr [rbx+0x20]
        test     rax, rax
+       je       SHORT G_M16031_IG05
+       cmp      dword ptr [rax+0x08], 0
+       jne      SHORT G_M16031_IG10
+						;; size=15 bbWeight=0.50 PerfScore 3.12
+G_M16031_IG05:
+       cmp      dword ptr [rbx+0x60], -1
+       jne      SHORT G_M16031_IG10
+       cmp      dword ptr [rbx+0x64], -1
+       jne      SHORT G_M16031_IG10
+       cmp      dword ptr [rbx+0x68], -1
+       jne      SHORT G_M16031_IG10
+       mov      rax, gword ptr [rbx+0x28]
+       test     rax, rax
+       je       SHORT G_M16031_IG06
+       cmp      dword ptr [rax+0x08], 0
+       jne      SHORT G_M16031_IG10
+						;; size=33 bbWeight=0.50 PerfScore 7.62
+G_M16031_IG06:
+       mov      rax, gword ptr [rbx+0x38]
+       test     rax, rax
+       je       SHORT G_M16031_IG07
+       cmp      dword ptr [rax+0x08], 0
+       jne      SHORT G_M16031_IG10
+						;; size=15 bbWeight=0.50 PerfScore 3.12
+G_M16031_IG07:
+       mov      rax, gword ptr [rbx+0x40]
+       test     rax, rax
        je       SHORT G_M16031_IG08
        cmp      dword ptr [rax+0x08], 0
-       jne      SHORT G_M16031_IG13
+       jne      SHORT G_M16031_IG10
 						;; size=15 bbWeight=0.50 PerfScore 3.12
 G_M16031_IG08:
-       cmp      dword ptr [rbx+0x60], -1
-       jne      SHORT G_M16031_IG13
-       cmp      dword ptr [rbx+0x64], -1
-       jne      SHORT G_M16031_IG13
-       cmp      dword ptr [rbx+0x68], -1
-       jne      SHORT G_M16031_IG13
-       mov      rax, gword ptr [rbx+0x28]
+       mov      rax, gword ptr [rbx+0x48]
        test     rax, rax
        je       SHORT G_M16031_IG09
        cmp      dword ptr [rax+0x08], 0
-       jne      SHORT G_M16031_IG13
-						;; size=33 bbWeight=0.50 PerfScore 7.62
+       jne      SHORT G_M16031_IG10
+						;; size=15 bbWeight=0.50 PerfScore 3.12
 G_M16031_IG09:
-       mov      rax, gword ptr [rbx+0x38]
-       test     rax, rax
-       je       SHORT G_M16031_IG10
-       cmp      dword ptr [rax+0x08], 0
-       jne      SHORT G_M16031_IG13
-						;; size=15 bbWeight=0.50 PerfScore 3.12
-G_M16031_IG10:
-       mov      rax, gword ptr [rbx+0x40]
-       test     rax, rax
-       je       SHORT G_M16031_IG11
-       cmp      dword ptr [rax+0x08], 0
-       jne      SHORT G_M16031_IG13
-						;; size=15 bbWeight=0.50 PerfScore 3.12
-G_M16031_IG11:
-       mov      rax, gword ptr [rbx+0x48]
+       mov      rax, gword ptr [rbx+0x50]
        test     rax, rax
        je       SHORT G_M16031_IG12
        cmp      dword ptr [rax+0x08], 0
-       jne      SHORT G_M16031_IG13
+       je       SHORT G_M16031_IG12
 						;; size=15 bbWeight=0.50 PerfScore 3.12
-G_M16031_IG12:
-       mov      rax, gword ptr [rbx+0x50]
-       test     rax, rax
-       je       SHORT G_M16031_IG15
-       cmp      dword ptr [rax+0x08], 0
-       je       SHORT G_M16031_IG15
-						;; size=15 bbWeight=0.50 PerfScore 3.12
-G_M16031_IG13:
+G_M16031_IG10:
        xor      eax, eax
 						;; size=2 bbWeight=0.50 PerfScore 0.12
+G_M16031_IG11:
+       pop      rbx
+       pop      r15
+       pop      rbp
+       ret      
+						;; size=5 bbWeight=0.50 PerfScore 1.25
+G_M16031_IG12:
+       mov      rax, gword ptr [rbx+0x58]
+       test     rax, rax
+       jne      SHORT G_M16031_IG13
+       mov      eax, 1
+       jmp      SHORT G_M16031_IG14
+						;; size=16 bbWeight=0.50 PerfScore 2.75
+G_M16031_IG13:
+       cmp      dword ptr [rax+0x08], 0
+       sete     al
+       movzx    rax, al
+						;; size=10 bbWeight=0.50 PerfScore 1.38
 G_M16031_IG14:
        pop      rbx
        pop      r15
        pop      rbp
        ret      
 						;; size=5 bbWeight=0.50 PerfScore 1.25
-G_M16031_IG15:
-       mov      rax, gword ptr [rbx+0x58]
-       test     rax, rax
-       jne      SHORT G_M16031_IG16
-       mov      eax, 1
-       jmp      SHORT G_M16031_IG17
-						;; size=16 bbWeight=0.50 PerfScore 2.75
-G_M16031_IG16:
-       cmp      dword ptr [rax+0x08], 0
-       sete     al
-       movzx    rax, al
-						;; size=10 bbWeight=0.50 PerfScore 1.38
-G_M16031_IG17:
-       pop      rbx
-       pop      r15
-       pop      rbp
-       ret      
-						;; size=5 bbWeight=0.50 PerfScore 1.25
 
-; Total bytes of code 322, prolog size 9, PerfScore 55.38, instruction count 92, allocated bytes for code 322 (MethodHash=58a5c160) for method System.Data.SimpleType:IsPlainString():bool:this (FullOpts)
+; Total bytes of code 288, prolog size 9, PerfScore 51.62, instruction count 85, allocated bytes for code 288 (MethodHash=58a5c160) for method System.Data.SimpleType:IsPlainString():bool:this (FullOpts)
 ; ============================================================

-25 (-4.84 % of base) - Microsoft.VisualBasic.CompilerServices.Utils:ParameterToString(System.Reflection.ParameterInfo):System.String

 ; Assembly listing for method Microsoft.VisualBasic.CompilerServices.Utils:ParameterToString(System.Reflection.ParameterInfo):System.String (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; 0 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 arg0         [V00,T00] ( 10,  8.50)     ref  ->  rbx         class-hnd single-def <System.Reflection.ParameterInfo>
-;  V01 loc0         [V01,T01] ( 15,  9.50)     ref  ->  r15         class-hnd <System.String>
-;  V02 loc1         [V02,T02] (  7,  5.50)     ref  ->  r13         class-hnd <System.Type>
+;  V01 loc0         [V01,T01] ( 14,  9   )     ref  ->  r13         class-hnd <System.String>
+;  V02 loc1         [V02,T02] (  7,  5.50)     ref  ->  r14         class-hnd <System.Type>
 ;  V03 loc2         [V03,T06] (  4,  2   )     ref  ->  rbx         class-hnd single-def <System.Object>
 ;  V04 loc3         [V04,T08] (  3,  1.50)     ref  ->  rax         class-hnd exact single-def <System.RuntimeType>
 ;# 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 "non-inline candidate call" <System.String>
-;  V07 tmp2         [V07,T09] (  3,  0   )     ref  ->  r15         class-hnd exact single-def "NewObj constructor temp" <System.InvalidOperationException>
+;  V07 tmp2         [V07,T09] (  3,  0   )     ref  ->  r13         class-hnd exact single-def "NewObj constructor temp" <System.InvalidOperationException>
 ;  V08 tmp3         [V08,T04] (  2,  4   )     ref  ->  r12         single-def "argument with side effect"
 ;  V09 tmp4         [V09,T05] (  2,  4   )     ref  ->  rcx         single-def "argument with side effect"
 ;  V10 tmp5         [V10,T07] (  2,  2   )     ref  ->  rdx         single-def "argument with side effect"
-;  V11 cse0         [V11,T03] (  5,  5   )    long  ->  r14         "CSE #02: aggressive"
+;  V11 cse0         [V11,T03] (  5,  5   )    long  ->  r15         "CSE #02: aggressive"
 ;
 ; Lcl frame size = 8
 
 G_M48841_IG01:
        push     rbp
        push     r15
        push     r14
        push     r13
        push     r12
        push     rbx
        push     rax
        lea      rbp, [rsp+0x30]
        mov      rbx, rdi
 						;; size=19 bbWeight=1 PerfScore 7.75
 G_M48841_IG02:
-       mov      r15, 0xD1FFAB1E      ; ''
        mov      rdi, rbx
        mov      rax, qword ptr [rbx]
-       mov      r14, qword ptr [rax+0x40]
-       call     [r14+0x38]System.Reflection.ParameterInfo:get_ParameterType():System.Type:this
-       mov      r13, rax
+       mov      r15, qword ptr [rax+0x40]
+       call     [r15+0x38]System.Reflection.ParameterInfo:get_ParameterType():System.Type:this
+       mov      r14, rax
        mov      rdi, rbx
-       call     [r14+0x20]System.Reflection.ParameterInfo:get_Attributes():int:this
+       call     [r15+0x20]System.Reflection.ParameterInfo:get_Attributes():int:this
+       mov      r13, 0xD1FFAB1E      ; ''
+       mov      rdi, 0xD1FFAB1E      ; '['
        test     al, 16
-       je       SHORT G_M48841_IG04
-						;; size=38 bbWeight=1 PerfScore 12.25
-G_M48841_IG03:
-       mov      rdi, 0xD1FFAB1E      ; ''
-       mov      rsi, 0xD1FFAB1E      ; '['
-       mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String):System.String
-       call     [rax]System.String:Concat(System.String,System.String):System.String
-       mov      r15, rax
-						;; size=35 bbWeight=0.50 PerfScore 2.00
-G_M48841_IG04:
-       mov      rdi, r13
-       mov      rax, qword ptr [r13]
+       cmovne   r13, rdi
+       mov      rdi, r14
+       mov      rax, qword ptr [r14]
        mov      rax, qword ptr [rax+0x58]
        call     [rax+0x18]System.Type:IsByRefImpl():bool:this
        test     eax, eax
-       jne      SHORT G_M48841_IG06
-						;; size=18 bbWeight=1 PerfScore 8.50
-G_M48841_IG05:
+       jne      SHORT G_M48841_IG04
+						;; size=67 bbWeight=1 PerfScore 20.50
+G_M48841_IG03:
        mov      rdi, rbx
        mov      rax, 0xD1FFAB1E      ; code for Microsoft.VisualBasic.CompilerServices.Symbols:IsParamArray(System.Reflection.ParameterInfo):bool
        call     [rax]Microsoft.VisualBasic.CompilerServices.Symbols:IsParamArray(System.Reflection.ParameterInfo):bool
        test     eax, eax
-       je       SHORT G_M48841_IG07
-       mov      rdi, r15
+       je       SHORT G_M48841_IG05
+       mov      rdi, r13
        mov      rsi, 0xD1FFAB1E      ; 'ParamArray '
        mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String):System.String
        call     [rax]System.String:Concat(System.String,System.String):System.String
-       mov      r15, rax
-       jmp      SHORT G_M48841_IG07
+       mov      r13, rax
+       jmp      SHORT G_M48841_IG05
 						;; size=49 bbWeight=0.50 PerfScore 5.38
-G_M48841_IG06:
-       mov      rdi, r15
+G_M48841_IG04:
+       mov      rdi, r13
        mov      rsi, 0xD1FFAB1E      ; 'ByRef '
        mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String):System.String
        call     [rax]System.String:Concat(System.String,System.String):System.String
-       mov      r15, rax
-       mov      rdi, r13
-       mov      rax, qword ptr [r13]
+       mov      r13, rax
+       mov      rdi, r14
+       mov      rax, qword ptr [r14]
        mov      rax, qword ptr [rax+0x68]
        call     [rax+0x08]System.Type:GetElementType():System.Type:this
-       mov      r13, rax
-						;; size=45 bbWeight=0.50 PerfScore 5.75
-G_M48841_IG07:
+       mov      r14, rax
+						;; size=44 bbWeight=0.50 PerfScore 5.75
+G_M48841_IG05:
        mov      rdi, rbx
-       call     [r14+0x30]System.Reflection.ParameterInfo:get_Name():System.String:this
+       call     [r15+0x30]System.Reflection.ParameterInfo:get_Name():System.String:this
        mov      r12, rax
-       mov      rdi, r13
+       mov      rdi, r14
        mov      esi, 1
        mov      rax, 0xD1FFAB1E      ; code for Microsoft.VisualBasic.CompilerServices.Utils:VBFriendlyNameOfType(System.Type,bool):System.String
        call     [rax]Microsoft.VisualBasic.CompilerServices.Utils:VBFriendlyNameOfType(System.Type,bool):System.String
        mov      rcx, rax
        mov      rsi, r12
-       mov      rdi, r15
+       mov      rdi, r13
        mov      rdx, 0xD1FFAB1E      ; ' As '
        mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String,System.String,System.String):System.String
        call     [rax]System.String:Concat(System.String,System.String,System.String,System.String):System.String
-       mov      r15, rax
+       mov      r13, rax
        mov      rdi, rbx
-       call     [r14+0x20]System.Reflection.ParameterInfo:get_Attributes():int:this
+       call     [r15+0x20]System.Reflection.ParameterInfo:get_Attributes():int:this
        test     al, 16
-       je       G_M48841_IG11
+       je       G_M48841_IG09
 						;; size=79 bbWeight=1 PerfScore 16.25
-G_M48841_IG08:
+G_M48841_IG06:
        mov      rdi, rbx
        mov      rax, qword ptr [rbx]
        mov      rax, qword ptr [rax+0x48]
        call     [rax+0x08]System.Reflection.ParameterInfo:get_DefaultValue():System.Object:this
        mov      rbx, rax
        test     rbx, rbx
-       je       SHORT G_M48841_IG09
+       je       SHORT G_M48841_IG07
        mov      rdi, rbx
        mov      rax, 0xD1FFAB1E      ; code for System.Object:GetType():System.Type:this
        call     [rax]System.Object:GetType():System.Type:this
        mov      rdi, 0xD1FFAB1E      ; 'System.Void'
        cmp      rax, rdi
-       je       SHORT G_M48841_IG10
+       je       SHORT G_M48841_IG08
        mov      rdi, rax
        mov      rax, 0xD1FFAB1E      ; code for System.RuntimeType:get_IsEnum():bool:this
        call     [rax]System.RuntimeType:get_IsEnum():bool:this
        test     eax, eax
-       jne      SHORT G_M48841_IG13
+       jne      SHORT G_M48841_IG11
        mov      rdi, rbx
        mov      rax, 0xD1FFAB1E      ; code for Microsoft.VisualBasic.CompilerServices.Conversions:ToString(System.Object):System.String
        call     [rax]Microsoft.VisualBasic.CompilerServices.Conversions:ToString(System.Object):System.String
        mov      rdx, rax
-       mov      rdi, r15
+       mov      rdi, r13
        mov      rsi, 0xD1FFAB1E      ; ' = '
        mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String,System.String):System.String
        call     [rax]System.String:Concat(System.String,System.String,System.String):System.String
-       mov      r15, rax
-       jmp      SHORT G_M48841_IG10
+       mov      r13, rax
+       jmp      SHORT G_M48841_IG08
 						;; size=118 bbWeight=0.50 PerfScore 14.12
-G_M48841_IG09:
-       mov      rdi, r15
+G_M48841_IG07:
+       mov      rdi, r13
        mov      rsi, 0xD1FFAB1E      ; ' = Nothing'
        mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String):System.String
        call     [rax]System.String:Concat(System.String,System.String):System.String
-       mov      r15, rax
+       mov      r13, rax
 						;; size=28 bbWeight=0.50 PerfScore 2.00
-G_M48841_IG10:
-       mov      rdi, r15
+G_M48841_IG08:
+       mov      rdi, r13
        mov      rsi, 0xD1FFAB1E      ; ']'
        mov      rax, 0xD1FFAB1E      ; code for System.String:Concat(System.String,System.String):System.String
        call     [rax]System.String:Concat(System.String,System.String):System.String
-       mov      r15, rax
+       mov      r13, rax
 						;; size=28 bbWeight=0.50 PerfScore 2.00
-G_M48841_IG11:
-       mov      rax, r15
+G_M48841_IG09:
+       mov      rax, r13
 						;; size=3 bbWeight=1 PerfScore 0.25
-G_M48841_IG12:
+G_M48841_IG10:
        add      rsp, 8
        pop      rbx
        pop      r12
        pop      r13
        pop      r14
        pop      r15
        pop      rbp
        ret      
 						;; size=15 bbWeight=1 PerfScore 4.25
-G_M48841_IG13:
+G_M48841_IG11:
        mov      rdi, 0xD1FFAB1E      ; System.InvalidOperationException
        call     CORINFO_HELP_NEWSFAST
-       mov      r15, rax
-       mov      rdi, r15
+       mov      r13, rax
+       mov      rdi, r13
        mov      rax, 0xD1FFAB1E      ; code for System.InvalidOperationException:.ctor():this
        call     [rax]System.InvalidOperationException:.ctor():this
-       mov      rdi, r15
+       mov      rdi, r13
        call     CORINFO_HELP_THROW
        int3     
 						;; size=42 bbWeight=0 PerfScore 0.00
 
-; Total bytes of code 517, prolog size 16, PerfScore 80.50, instruction count 125, allocated bytes for code 517 (MethodHash=921e4136) for method Microsoft.VisualBasic.CompilerServices.Utils:ParameterToString(System.Reflection.ParameterInfo):System.String (FullOpts)
+; Total bytes of code 492, prolog size 16, PerfScore 78.25, instruction count 121, allocated bytes for code 492 (MethodHash=921e4136) for method Microsoft.VisualBasic.CompilerServices.Utils:ParameterToString(System.Reflection.ParameterInfo):System.String (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/7cb7fe48ac2ad01433b6f534b36d732d

[MihuBot]

@EgorBo