[JitDiff ARM64] [xtqqczze] Refactor memory copies in `SafeBuffer`

[MihuBot]

Job completed in 25 minutes.
dotnet/runtime#105206

Diffs

Diffs

Found 330 files with textual diffs.

Summary of Code Size diffs:
(Lower is better)

Total bytes of base: 47407708
Total bytes of diff: 47407576
Total bytes of delta: -132 (-0.00 % of base)
Total relative delta: -1.67
    diff is an improvement.
    relative diff is an improvement.


Top file regressions (bytes):
         528 : System.Formats.Tar.dasm (0.35 % of base)
         400 : System.DirectoryServices.Protocols.dasm (0.22 % of base)
          48 : System.Collections.Specialized.dasm (0.28 % of base)
           4 : System.Net.Http.dasm (0.00 % of base)
           4 : System.Drawing.Primitives.dasm (0.01 % of base)
           4 : System.Configuration.ConfigurationManager.dasm (0.00 % of base)
           4 : System.Reflection.Metadata.dasm (0.00 % of base)

Top file improvements (bytes):
        -380 : System.Private.CoreLib.dasm (-0.00 % of base)
        -296 : System.Diagnostics.TraceSource.dasm (-0.48 % of base)
        -232 : System.Runtime.Caching.dasm (-0.32 % of base)
         -52 : System.Net.NameResolution.dasm (-0.10 % of base)
         -48 : System.Memory.Data.dasm (-0.27 % of base)
         -28 : Microsoft.VisualBasic.Core.dasm (-0.00 % of base)
         -20 : Microsoft.Extensions.Logging.TraceSource.dasm (-0.19 % of base)
         -16 : System.Threading.Channels.dasm (-0.01 % of base)
         -16 : System.Diagnostics.Process.dasm (-0.01 % of base)
         -12 : System.Transactions.Local.dasm (-0.01 % of base)
         -12 : System.Composition.Hosting.dasm (-0.01 % of base)
          -8 : System.Composition.Runtime.dasm (-0.03 % of base)
          -4 : Microsoft.Extensions.DependencyModel.dasm (-0.00 % of base)

20 total files with Code Size differences (13 improved, 7 regressed), 239 unchanged.

Top method regressions (bytes):
          28 (1.48 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHeader+<ReadGnuLongPathDataBlockAsync>d__68:MoveNext():this (FullOpts)
          20 (1.15 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHelpers+<AdvanceStreamAsync>d__7:MoveNext():this (FullOpts)
          20 (0.94 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHelpers+<CopyBytesAsync>d__9:MoveNext():this (FullOpts)
          16 (0.77 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.DirectoryAttribute:GetValues(System.Type):System.Object[]:this (FullOpts)
          16 (0.96 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHeader+<ReadExtendedAttributesBlockAsync>d__64:MoveNext():this (FullOpts)
          16 (0.66 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHeader+<WriteAsGnuAsync>d__99:MoveNext():this (FullOpts)
          16 (0.92 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarReader+<DisposeAsync>d__8:MoveNext():this (FullOpts)
          16 (1.14 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarWriter+<ReadFileFromDiskAndWriteToArchiveStreamAsEntryAsync>d__16:MoveNext():this (FullOpts)
          16 (0.63 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarWriter+<WriteEntryAsyncInternal>d__20:MoveNext():this (FullOpts)
          12 (1.22 % of base) : System.Formats.Tar.dasm - Interop+ErrorInfo:ToString():System.String:this (FullOpts)
          12 (0.62 % of base) : Microsoft.VisualBasic.Core.dasm - Microsoft.VisualBasic.CompilerServices.ConversionResolution:.cctor() (FullOpts)
          12 (5.88 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.DirectoryAttribute:.cctor() (FullOpts)
          12 (0.31 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.LdapConnection+<ConstructResponseAsync>d__57:MoveNext():this (FullOpts)
          12 (0.73 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHeader:CollectExtendedAttributesFromStandardFieldsIfNeeded():this (FullOpts)
          12 (1.58 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHeader:ReadGnuLongPathDataBlock(System.IO.Stream):this (FullOpts)
          12 (0.89 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarWriter+<WriteFinalRecordsAsync>d__22:MoveNext():this (FullOpts)
           8 (1.23 % of base) : System.Collections.Specialized.dasm - System.Collections.Specialized.BitVector32+Section:ToString(System.Collections.Specialized.BitVector32+Section):System.String (FullOpts)
           8 (0.22 % of base) : System.Composition.Hosting.dasm - System.Composition.Hosting.Providers.Metadata.MetadataViewProvider:GetMetadataViewProvider[int]():System.Func`2[System.Collections.Generic.IDictionary`2[System.String,System.Object],int] (FullOpts)
           8 (0.22 % of base) : System.Composition.Hosting.dasm - System.Composition.Hosting.Providers.Metadata.MetadataViewProvider:GetMetadataViewProvider[System.Numerics.Vector`1[float]]():System.Func`2[System.Collections.Generic.IDictionary`2[System.String,System.Object],System.Numerics.Vector`1[float]] (FullOpts)
           8 (0.22 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.BerConverter:Encode(System.String,System.Object[]):ubyte[] (FullOpts)
           8 (0.92 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.LdapConnection:Abort(System.IAsyncResult):this (FullOpts)
           8 (0.45 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.LdapConnection:BeginSendRequest(System.DirectoryServices.Protocols.DirectoryRequest,System.TimeSpan,int,System.AsyncCallback,System.Object):System.IAsyncResult:this (FullOpts)
           8 (0.55 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.LdapConnection:ConstructParsedResult(long,byref,byref,byref,byref,byref):int:this (FullOpts)
           8 (2.22 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.LdapConnection:Dispose(ubyte):this (FullOpts)
           8 (0.94 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.LdapConnection:EndSendRequest(System.IAsyncResult):System.DirectoryServices.Protocols.DirectoryResponse:this (FullOpts)
           8 (1.39 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.LdapConnection:Init():this (FullOpts)
           8 (1.90 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.LdapPartialResultsProcessor:AddResult(System.DirectoryServices.Protocols.SearchResponse,System.DirectoryServices.Protocols.SearchResponse) (FullOpts)
           8 (0.95 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.LdapPartialResultsProcessor:GetPartialResults(System.DirectoryServices.Protocols.LdapPartialAsyncResult):System.DirectoryServices.Protocols.PartialResultsCollection:this (FullOpts)
           8 (1.21 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.LdapSessionOptions:ProcessDereferenceConnection(long,long):int:this (FullOpts)
           8 (0.45 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarFile+<CreateFromDirectoryInternalAsync>d__9:MoveNext():this (FullOpts)
           8 (0.45 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarFile+<ExtractToDirectoryInternalAsync>d__15:MoveNext():this (FullOpts)
           8 (0.33 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarFile+<ExtractToDirectoryInternalAsync>d__16:MoveNext():this (FullOpts)
           8 (0.49 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHeader:GenerateExtendedAttributeName():System.String:this (FullOpts)
           8 (0.55 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHeader:GenerateExtendedAttributesDataStream(System.Collections.Generic.Dictionary`2[System.String,System.String]):System.IO.MemoryStream (FullOpts)
           8 (1.53 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHeader:ReadExtendedAttributesBlock(System.IO.Stream):this (FullOpts)
           8 (0.51 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHeader:TryReadCommonAttributes(System.ReadOnlySpan`1[ubyte],int):System.Formats.Tar.TarHeader (FullOpts)
           8 (1.05 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHeader:WriteAsGnu(System.IO.Stream,System.Span`1[ubyte]):this (FullOpts)
           8 (0.72 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHeader:WritePosixAndGnuSharedFields(System.Span`1[ubyte]):int:this (FullOpts)
           8 (0.49 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHeader+<GetDataStreamAsync>d__56:MoveNext():this (FullOpts)
           8 (0.44 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHeader+<TryGetNextHeaderAsync>d__50:MoveNext():this (FullOpts)
           8 (0.46 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHeader+<WriteDataAsync>d__118:MoveNext():this (FullOpts)
           8 (0.52 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHeader+<WriteWithSeekableDataStreamAsync>d__84:MoveNext():this (FullOpts)
           8 (0.34 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHeader+<WriteWithUnseekableDataStreamAsync>d__86:MoveNext():this (FullOpts)
           8 (1.67 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHelpers:AdvanceStream(System.IO.Stream,long) (FullOpts)
           8 (1.71 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHelpers:CopyBytes(System.IO.Stream,System.IO.Stream,long) (FullOpts)
           8 (0.70 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHelpers+<SkipBlockAlignmentPaddingAsync>d__29:MoveNext():this (FullOpts)
           8 (0.43 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarReader+<GetNextEntryInternalAsync>d__13:MoveNext():this (FullOpts)
           8 (0.37 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarReader+<TryGetNextEntryHeaderAsync>d__15:MoveNext():this (FullOpts)
           8 (0.49 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarReader+<TryProcessExtendedAttributesHeaderAsync>d__17:MoveNext():this (FullOpts)
           8 (0.34 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarReader+<TryProcessGnuMetadataHeaderAsync>d__19:MoveNext():this (FullOpts)
           8 (0.62 % of base) : System.Net.NameResolution.dasm - System.Net.Dns:RunAsync[int](System.Func`3[System.Object,System.Net.NameResolutionActivity,int],System.Object,System.Threading.CancellationToken):System.Threading.Tasks.Task`1[int] (FullOpts)
           8 (4.00 % of base) : System.Reflection.Metadata.dasm - System.Reflection.Metadata.Ecma335.MetadataAggregator:GetBaseRowCounts(System.Collections.Generic.IReadOnlyList`1[int],int):System.Reflection.Metadata.Ecma335.MetadataAggregator+RowCounts[][] (FullOpts)
           8 (7.14 % of base) : System.DirectoryServices.Protocols.dasm - System.SR:get_ResourceManager():System.Resources.ResourceManager (FullOpts)
           8 (7.14 % of base) : System.Collections.Specialized.dasm - System.SR:get_ResourceManager():System.Resources.ResourceManager (FullOpts)
           8 (7.14 % of base) : System.Formats.Tar.dasm - System.SR:get_ResourceManager():System.Resources.ResourceManager (FullOpts)
           4 (8.33 % of base) : System.Collections.Specialized.dasm - System.Collections.Specialized.BitVector32+<>c:.cctor() (FullOpts)
           4 (1.75 % of base) : System.Collections.Specialized.dasm - System.Collections.Specialized.HybridDictionary:.ctor(int,ubyte):this (FullOpts)
           4 (1.03 % of base) : System.Collections.Specialized.dasm - System.Collections.Specialized.HybridDictionary:ChangeOver():this (FullOpts)
           4 (3.85 % of base) : System.Collections.Specialized.dasm - System.Collections.Specialized.HybridDictionary:get_List():System.Collections.Specialized.ListDictionary:this (FullOpts)
           4 (7.69 % of base) : System.Collections.Specialized.dasm - System.Collections.Specialized.NameObjectCollectionBase:.ctor():this (FullOpts)
           4 (7.69 % of base) : System.Collections.Specialized.dasm - System.Collections.Specialized.NameObjectCollectionBase:.ctor(int):this (FullOpts)
           4 (1.79 % of base) : System.Collections.Specialized.dasm - System.Collections.Specialized.NameObjectCollectionBase:Reset():this (FullOpts)
           4 (7.69 % of base) : System.Collections.Specialized.dasm - System.Collections.Specialized.NameValueCollection:.ctor():this (FullOpts)
           4 (7.69 % of base) : System.Collections.Specialized.dasm - System.Collections.Specialized.NameValueCollection:.ctor(int):this (FullOpts)
           4 (3.23 % of base) : System.Collections.Specialized.dasm - System.Collections.Specialized.StringCollection:.ctor():this (FullOpts)
           4 (0.34 % of base) : System.Configuration.ConfigurationManager.dasm - System.Diagnostics.TraceUtils:MapToBuiltInTypes(System.String):System.Type (FullOpts)
           4 (1.72 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.AddRequest:.ctor():this (FullOpts)
           4 (1.23 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.AddRequest:.ctor(System.String,System.DirectoryServices.Protocols.DirectoryAttribute[]):this (FullOpts)
           4 (0.88 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.AddRequest:.ctor(System.String,System.String):this (FullOpts)
           4 (0.43 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.BerConverter:DecodingMultiByteArrayHelper(System.DirectoryServices.Protocols.SafeBerHandle,ushort,byref):ubyte[][] (FullOpts)
           4 (0.17 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.BerConverter:TryDecode(System.String,ubyte[],byref):System.Object[] (FullOpts)
           4 (1.61 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.CompareRequest:.ctor():this (FullOpts)
           4 (0.83 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.CompareRequest:.ctor(System.String,System.DirectoryServices.Protocols.DirectoryAttribute):this (FullOpts)
           4 (0.91 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.CompareRequest:.ctor(System.String,System.String,System.String):this (FullOpts)
           4 (1.33 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.CompareRequest:.ctor(System.String,System.String,System.Uri):this (FullOpts)
           4 (1.33 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.CompareRequest:.ctor(System.String,System.String,ubyte[]):this (FullOpts)
           4 (2.56 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.DeleteRequest:.ctor():this (FullOpts)
           4 (2.22 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.DeleteRequest:.ctor(System.String):this (FullOpts)
           4 (2.86 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.DirectoryAttribute:.ctor():this (FullOpts)
           4 (1.30 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.DirectoryAttribute:.ctor(System.String,System.Object):this (FullOpts)
           4 (1.20 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.DirectoryAttribute:.ctor(System.String,System.Object[]):this (FullOpts)
           4 (1.30 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.DirectoryAttribute:.ctor(System.String,System.String):this (FullOpts)
           4 (1.54 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.DirectoryAttribute:get_Item(int):System.Object:this (FullOpts)
           4 (3.23 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.DirectoryAttributeCollection:.ctor():this (FullOpts)
           4 (2.70 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.DirectoryAttributeModification:.ctor():this (FullOpts)
           4 (3.23 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.DirectoryAttributeModificationCollection:.ctor():this (FullOpts)
           4 (2.38 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.DirectoryConnection:.ctor():this (FullOpts)
           4 (0.12 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.DirectoryControl:TransformControls(System.DirectoryServices.Protocols.DirectoryControl[]) (FullOpts)
           4 (3.23 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.DirectoryControlCollection:.ctor():this (FullOpts)
           4 (2.56 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.DirectoryRequest:.ctor():this (FullOpts)
           4 (2.08 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.DirSyncRequestControl:get_Cookie():ubyte[]:this (FullOpts)
           4 (2.08 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.DirSyncResponseControl:get_Cookie():ubyte[]:this (FullOpts)
           4 (2.33 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.DsmlAuthRequest:.ctor():this (FullOpts)
           4 (2.22 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.DsmlAuthRequest:.ctor(System.String):this (FullOpts)
           4 (2.56 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.ExtendedRequest:.ctor():this (FullOpts)
           4 (2.04 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.ExtendedRequest:.ctor(System.String,ubyte[]):this (FullOpts)
           4 (2.22 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.ExtendedRequest:.ctor(System.String):this (FullOpts)
           4 (1.92 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.ExtendedRequest:get_RequestValue():ubyte[]:this (FullOpts)
           4 (1.92 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.ExtendedResponse:get_ResponseValue():ubyte[]:this (FullOpts)
           4 (1.15 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.LdapConnection:.cctor() (FullOpts)

Top method improvements (bytes):
         -36 (-3.81 % of base) : Microsoft.VisualBasic.Core.dasm - Microsoft.VisualBasic.CompilerServices.VB6RandomFile:OpenFile():this (FullOpts)
         -32 (-10.13 % of base) : System.Private.CoreLib.dasm - System.Runtime.InteropServices.SafeBuffer:Read[int](ulong):int:this (FullOpts)
         -32 (-10.13 % of base) : System.Private.CoreLib.dasm - System.Runtime.InteropServices.SafeBuffer:Read[long](ulong):long:this (FullOpts)
         -32 (-10.13 % of base) : System.Private.CoreLib.dasm - System.Runtime.InteropServices.SafeBuffer:Read[short](ulong):short:this (FullOpts)
         -32 (-10.00 % of base) : System.Private.CoreLib.dasm - System.Runtime.InteropServices.SafeBuffer:Read[System.Numerics.Vector`1[float]](ulong):System.Numerics.Vector`1[float]:this (FullOpts)
         -32 (-10.13 % of base) : System.Private.CoreLib.dasm - System.Runtime.InteropServices.SafeBuffer:Read[ubyte](ulong):ubyte:this (FullOpts)
         -28 (-1.11 % of base) : System.Runtime.Caching.dasm - System.Runtime.Caching.MemoryCacheEntryChangeMonitor:InitDisposableMembers(System.Runtime.Caching.MemoryCache):this (FullOpts)
         -28 (-8.86 % of base) : System.Private.CoreLib.dasm - System.Runtime.InteropServices.SafeBuffer:Read[double](ulong):double:this (FullOpts)
         -28 (-8.97 % of base) : System.Private.CoreLib.dasm - System.Runtime.InteropServices.SafeBuffer:Write[int](ulong,int):this (FullOpts)
         -28 (-8.97 % of base) : System.Private.CoreLib.dasm - System.Runtime.InteropServices.SafeBuffer:Write[long](ulong,long):this (FullOpts)
         -28 (-8.97 % of base) : System.Private.CoreLib.dasm - System.Runtime.InteropServices.SafeBuffer:Write[short](ulong,short):this (FullOpts)
         -28 (-8.97 % of base) : System.Private.CoreLib.dasm - System.Runtime.InteropServices.SafeBuffer:Write[ubyte](ulong,ubyte):this (FullOpts)
         -24 (-7.69 % of base) : System.Private.CoreLib.dasm - System.Runtime.InteropServices.SafeBuffer:Write[double](ulong,double):this (FullOpts)
         -24 (-7.69 % of base) : System.Private.CoreLib.dasm - System.Runtime.InteropServices.SafeBuffer:Write[System.Numerics.Vector`1[float]](ulong,System.Numerics.Vector`1[float]):this (FullOpts)
         -20 (-1.51 % of base) : System.Net.NameResolution.dasm - System.Net.Dns:RunAsync[double](System.Func`3[System.Object,System.Net.NameResolutionActivity,double],System.Object,System.Threading.CancellationToken):System.Threading.Tasks.Task`1[double] (FullOpts)
         -20 (-1.51 % of base) : System.Net.NameResolution.dasm - System.Net.Dns:RunAsync[short](System.Func`3[System.Object,System.Net.NameResolutionActivity,short],System.Object,System.Threading.CancellationToken):System.Threading.Tasks.Task`1[short] (FullOpts)
         -20 (-1.51 % of base) : System.Net.NameResolution.dasm - System.Net.Dns:RunAsync[System.Nullable`1[int]](System.Func`3[System.Object,System.Net.NameResolutionActivity,System.Nullable`1[int]],System.Object,System.Threading.CancellationToken):System.Threading.Tasks.Task`1[System.Nullable`1[int]] (FullOpts)
         -16 (-0.67 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.LdapSessionOptions:ProcessNotifyConnection(long,long,long,long,long,int,ulong,ulong,int):int:this (FullOpts)
         -12 (-9.09 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.Trace:get_CorrelationManager():System.Diagnostics.CorrelationManager (FullOpts)
         -12 (-0.68 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.LdapSessionOptions:ProcessQueryConnection(long,long,long,long,int,ulong,ulong,ulong):int:this (FullOpts)
         -12 (-5.77 % of base) : System.Runtime.Caching.dasm - System.Runtime.Caching.CacheMemoryMonitor:InitMemoryCacheManager() (FullOpts)
         -12 (-0.62 % of base) : System.Runtime.Caching.dasm - System.Runtime.Caching.HostFileChangeMonitor:InitDisposableMembers():this (FullOpts)
         -12 (-4.84 % of base) : System.Runtime.Caching.dasm - System.Runtime.Caching.HostFileChangeMonitor:InitFCN() (FullOpts)
         -12 (-8.33 % of base) : System.Runtime.Caching.dasm - System.Runtime.Caching.MemoryCache:.cctor() (FullOpts)
         -12 (-1.68 % of base) : System.Transactions.Local.dasm - System.Transactions.TransactionTable:.ctor():this (FullOpts)
          -8 (-3.85 % of base) : System.Collections.Specialized.dasm - System.Collections.Specialized.BitVector32:ToString(System.Collections.Specialized.BitVector32):System.String (FullOpts)
          -8 (-1.10 % of base) : System.Composition.Runtime.dasm - System.Composition.Hosting.Core.CompositionContract:ConstraintEqual(System.Collections.Generic.IDictionary`2[System.String,System.Object],System.Collections.Generic.IDictionary`2[System.String,System.Object]):ubyte (FullOpts)
          -8 (-1.98 % of base) : System.Composition.Hosting.dasm - System.Composition.Hosting.Providers.ImportMany.ImportManyExportDescriptorProvider:GetImportManyDescriptor[short](System.Composition.Hosting.Core.CompositionContract,System.Composition.Hosting.Core.CompositionContract,System.Composition.Hosting.Core.DependencyAccessor):System.Composition.Hosting.Core.ExportDescriptorPromise (FullOpts)
          -8 (-2.50 % of base) : System.Composition.Hosting.dasm - System.Composition.Hosting.Providers.ImportMany.ImportManyExportDescriptorProvider+<>c__3`1[double]:<GetImportManyDescriptor>b__3_1(System.Collections.Generic.IEnumerable`1[System.Composition.Hosting.Core.CompositionDependency]):System.Composition.Hosting.Core.ExportDescriptor:this (FullOpts)
          -8 (-1.59 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.CorrelationManager+AsyncLocalStackWrapper:ToArray():System.Object[]:this (FullOpts)
          -8 (-1.35 % of base) : System.Diagnostics.Process.dasm - System.Diagnostics.ProcessManager:GetModules(int):System.Diagnostics.ProcessModuleCollection (FullOpts)
          -8 (-4.17 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.Switch:add_Initializing(System.EventHandler`1[System.Diagnostics.InitializingSwitchEventArgs]) (FullOpts)
          -8 (-4.44 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.Switch:remove_Initializing(System.EventHandler`1[System.Diagnostics.InitializingSwitchEventArgs]) (FullOpts)
          -8 (-4.17 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.Trace:add_Refreshing(System.EventHandler) (FullOpts)
          -8 (-6.45 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.Trace:OnRefreshing() (FullOpts)
          -8 (-4.44 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.Trace:remove_Refreshing(System.EventHandler) (FullOpts)
          -8 (-1.60 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceInternal:Close() (FullOpts)
          -8 (-0.85 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceInternal:Flush() (FullOpts)
          -8 (-6.25 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceInternal:get_AppName():System.String (FullOpts)
          -8 (-0.98 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceListener:WriteHeader(System.String,int,int):this (FullOpts)
          -8 (-4.17 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceSource:add_Initializing(System.EventHandler`1[System.Diagnostics.InitializingTraceSourceEventArgs]) (FullOpts)
          -8 (-4.44 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceSource:remove_Initializing(System.EventHandler`1[System.Diagnostics.InitializingTraceSourceEventArgs]) (FullOpts)
          -8 (-2.27 % of base) : System.Memory.Data.dasm - System.IO.ReadOnlyMemoryStream:CopyToAsync(System.IO.Stream,int,System.Threading.CancellationToken):System.Threading.Tasks.Task:this (FullOpts)
          -8 (-0.47 % of base) : System.Runtime.Caching.dasm - System.Runtime.Caching.MemoryCache:Set(System.String,System.Object,System.Collections.ObjectModel.Collection`1[System.Runtime.Caching.ChangeMonitor],System.DateTimeOffset,System.TimeSpan,System.Runtime.Caching.CacheEntryUpdateCallback):this (FullOpts)
          -8 (-6.67 % of base) : System.Diagnostics.TraceSource.dasm - System.SR:get_ResourceManager():System.Resources.ResourceManager (FullOpts)
          -8 (-6.67 % of base) : System.Runtime.Caching.dasm - System.SR:get_ResourceManager():System.Resources.ResourceManager (FullOpts)
          -8 (-6.67 % of base) : System.Memory.Data.dasm - System.SR:get_ResourceManager():System.Resources.ResourceManager (FullOpts)
          -4 (-0.25 % of base) : System.Diagnostics.Process.dasm - Interop+cgroups:TryFindCGroupPathForSubsystem(int,System.String,System.String,byref):ubyte (FullOpts)
          -4 (-0.27 % of base) : System.Diagnostics.Process.dasm - Interop+cgroups:TryFindHierarchyMount(int,System.String,System.String,byref,byref):ubyte (FullOpts)
          -4 (-1.52 % of base) : Microsoft.Extensions.DependencyModel.dasm - Microsoft.Extensions.DependencyModel.Resolution.ReferenceAssemblyPathResolver:GetDefaultReferenceAssembliesPath(Microsoft.Extensions.DependencyModel.IFileSystem,Microsoft.Extensions.DependencyModel.IEnvironment):System.String (FullOpts)
          -4 (-2.00 % of base) : Microsoft.Extensions.Logging.TraceSource.dasm - Microsoft.Extensions.Logging.TraceSource.TraceSourceLoggerProvider:.ctor(System.Diagnostics.SourceSwitch,System.Diagnostics.TraceListener):this (FullOpts)
          -4 (-2.13 % of base) : Microsoft.Extensions.Logging.TraceSource.dasm - Microsoft.Extensions.Logging.TraceSource.TraceSourceLoggerProvider:.ctor(System.Diagnostics.SourceSwitch):this (FullOpts)
          -4 (-1.39 % of base) : Microsoft.Extensions.Logging.TraceSource.dasm - Microsoft.Extensions.Logging.TraceSourceFactoryExtensions:AddTraceSource(Microsoft.Extensions.Logging.ILoggerFactory,System.Diagnostics.SourceSwitch):Microsoft.Extensions.Logging.ILoggerFactory (FullOpts)
          -4 (-1.12 % of base) : Microsoft.Extensions.Logging.TraceSource.dasm - Microsoft.Extensions.Logging.TraceSourceFactoryExtensions:AddTraceSource(Microsoft.Extensions.Logging.ILoggerFactory,System.String):Microsoft.Extensions.Logging.ILoggerFactory (FullOpts)
          -4 (-1.89 % of base) : Microsoft.Extensions.Logging.TraceSource.dasm - Microsoft.Extensions.Logging.TraceSourceFactoryExtensions+<>c__DisplayClass6_0:<AddTraceSource>b__0(System.IServiceProvider):Microsoft.Extensions.Logging.ILoggerProvider:this (FullOpts)
          -4 (-3.03 % of base) : Microsoft.VisualBasic.Core.dasm - Microsoft.VisualBasic.CompilerServices.CacheDict`2[short,System.Nullable`1[int]]:.ctor(int):this (FullOpts)
          -4 (-7.14 % of base) : System.Memory.Data.dasm - System.BinaryData:.cctor() (FullOpts)
          -4 (-2.17 % of base) : System.Memory.Data.dasm - System.BinaryData:.ctor(System.String):this (FullOpts)
          -4 (-12.50 % of base) : System.Memory.Data.dasm - System.BinaryData:get_Empty():System.BinaryData (FullOpts)
          -4 (-1.39 % of base) : System.Memory.Data.dasm - System.BinaryData:ToArray():ubyte[]:this (FullOpts)
          -4 (-1.72 % of base) : System.Memory.Data.dasm - System.BinaryData:ToString():System.String:this (FullOpts)
          -4 (-2.22 % of base) : System.Composition.Hosting.dasm - System.Composition.Hosting.Providers.ExportFactory.ExportFactoryExportDescriptorProvider+<>c__DisplayClass2_2`1[int]:<GetExportFactoryDescriptors>b__3(System.Composition.Hosting.Core.LifetimeContext,System.Composition.Hosting.Core.CompositionOperation):System.Object:this (FullOpts)
          -4 (-2.22 % of base) : System.Composition.Hosting.dasm - System.Composition.Hosting.Providers.ExportFactory.ExportFactoryExportDescriptorProvider+<>c__DisplayClass2_2`1[ubyte]:<GetExportFactoryDescriptors>b__3(System.Composition.Hosting.Core.LifetimeContext,System.Composition.Hosting.Core.CompositionOperation):System.Object:this (FullOpts)
          -4 (-1.92 % of base) : System.Composition.Hosting.dasm - System.Composition.Hosting.Providers.Lazy.LazyExportDescriptorProvider+<>c__DisplayClass2_2`1[int]:<GetLazyDefinitions>b__3(System.Composition.Hosting.Core.LifetimeContext,System.Composition.Hosting.Core.CompositionOperation):System.Object:this (FullOpts)
          -4 (-0.53 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.Switch:_pruneCachedSwitches() (FullOpts)
          -4 (-3.45 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.Switch:.cctor() (FullOpts)
          -4 (-0.73 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.Switch:.ctor(System.String,System.String,System.String):this (FullOpts)
          -4 (-2.33 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.Switch:OnInitializing():this (FullOpts)
          -4 (-1.41 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.Switch:OnValueChanged():this (FullOpts)
          -4 (-0.98 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.Switch:RefreshAll() (FullOpts)
          -4 (-1.05 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.SwitchAttribute:GetAll(System.Reflection.Assembly):System.Diagnostics.SwitchAttribute[] (FullOpts)
          -4 (-3.03 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceEventCache:get_ThreadId():System.String:this (FullOpts)
          -4 (-7.69 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceInternal:.cctor() (FullOpts)
          -4 (-0.34 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceInternal:Fail(System.String,System.String) (FullOpts)
          -4 (-0.35 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceInternal:Fail(System.String) (FullOpts)
          -4 (-0.69 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceInternal:get_Listeners():System.Diagnostics.TraceListenerCollection (FullOpts)
          -4 (-1.64 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceInternal:InitializeSettings() (FullOpts)
          -4 (-1.39 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceInternal:Refresh() (FullOpts)
          -4 (-0.16 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceInternal:TraceEvent(int,int,System.String,System.Object[]) (FullOpts)
          -4 (-0.34 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceInternal:Write(System.Object,System.String) (FullOpts)
          -4 (-0.35 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceInternal:Write(System.Object) (FullOpts)
          -4 (-0.34 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceInternal:Write(System.String,System.String) (FullOpts)
          -4 (-0.35 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceInternal:Write(System.String) (FullOpts)
          -4 (-0.34 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceInternal:WriteLine(System.Object,System.String) (FullOpts)
          -4 (-0.35 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceInternal:WriteLine(System.Object) (FullOpts)
          -4 (-0.34 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceInternal:WriteLine(System.String,System.String) (FullOpts)
          -4 (-0.35 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceInternal:WriteLine(System.String) (FullOpts)
          -4 (-0.78 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceInternal+TraceProvider:OnIndentLevelChanged(int):this (FullOpts)
          -4 (-0.77 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceInternal+TraceProvider:OnIndentSizeChanged(int):this (FullOpts)
          -4 (-0.41 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceListener:Fail(System.String,System.String):this (FullOpts)
          -4 (-1.16 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceListener:TraceEvent(System.Diagnostics.TraceEventCache,System.String,int,int,System.String,System.Object[]):this (FullOpts)
          -4 (-0.67 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceListener:TraceTransfer(System.Diagnostics.TraceEventCache,System.String,int,System.String,System.Guid):this (FullOpts)
          -4 (-0.26 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceListener:WriteFooter(System.Diagnostics.TraceEventCache):this (FullOpts)
          -4 (-1.75 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceListenerCollection:Add(System.Diagnostics.TraceListener):int:this (FullOpts)
          -4 (-1.61 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceListenerCollection:Insert(int,System.Diagnostics.TraceListener):this (FullOpts)
          -4 (-1.39 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceListenerCollection:System.Collections.IList.Remove(System.Object):this (FullOpts)
          -4 (-0.53 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceSource:_pruneCachedTraceSources() (FullOpts)
          -4 (-3.45 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceSource:.cctor() (FullOpts)
          -4 (-0.73 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceSource:.ctor(System.String,int):this (FullOpts)
          -4 (-0.83 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceSource:Close():this (FullOpts)

Top method regressions (percentages):
           4 (14.29 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.UtilityHandle:GetHandle():System.DirectoryServices.Protocols.ConnectionHandle (FullOpts)
           4 (8.33 % of base) : System.Collections.Specialized.dasm - System.Collections.Specialized.BitVector32+<>c:.cctor() (FullOpts)
           4 (7.69 % of base) : System.Collections.Specialized.dasm - System.Collections.Specialized.NameObjectCollectionBase:.ctor():this (FullOpts)
           4 (7.69 % of base) : System.Collections.Specialized.dasm - System.Collections.Specialized.NameObjectCollectionBase:.ctor(int):this (FullOpts)
           4 (7.69 % of base) : System.Collections.Specialized.dasm - System.Collections.Specialized.NameValueCollection:.ctor():this (FullOpts)
           4 (7.69 % of base) : System.Collections.Specialized.dasm - System.Collections.Specialized.NameValueCollection:.ctor(int):this (FullOpts)
           4 (7.69 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHeader:GetUtf8TextLength(System.ReadOnlySpan`1[ushort]):int (FullOpts)
           8 (7.14 % of base) : System.DirectoryServices.Protocols.dasm - System.SR:get_ResourceManager():System.Resources.ResourceManager (FullOpts)
           8 (7.14 % of base) : System.Collections.Specialized.dasm - System.SR:get_ResourceManager():System.Resources.ResourceManager (FullOpts)
           8 (7.14 % of base) : System.Formats.Tar.dasm - System.SR:get_ResourceManager():System.Resources.ResourceManager (FullOpts)
          12 (5.88 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.DirectoryAttribute:.cctor() (FullOpts)
           4 (5.88 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.LdapDirectoryIdentifier:get_Servers():System.String[]:this (FullOpts)
           4 (5.88 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.OperationErrorMappings:MapResultCode(int):System.String (FullOpts)
           4 (5.88 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.SearchResultEntry:get_Controls():System.DirectoryServices.Protocols.DirectoryControl[]:this (FullOpts)
           4 (5.88 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.SearchResultReference:get_Controls():System.DirectoryServices.Protocols.DirectoryControl[]:this (FullOpts)
           4 (5.88 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHelpers:get_UMask():int (FullOpts)
           4 (5.88 % of base) : System.Reflection.Context.dasm - System.Reflection.Context.CollectionServices:Empty[long]():long[] (FullOpts)
           4 (5.26 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.SubReadStream:FlushAsync(System.Threading.CancellationToken):System.Threading.Tasks.Task:this (FullOpts)
           4 (4.55 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.LdapErrorMappings:MapResultCode(int):System.String (FullOpts)
           8 (4.00 % of base) : System.Reflection.Metadata.dasm - System.Reflection.Metadata.Ecma335.MetadataAggregator:GetBaseRowCounts(System.Collections.Generic.IReadOnlyList`1[int],int):System.Reflection.Metadata.Ecma335.MetadataAggregator+RowCounts[][] (FullOpts)
           4 (3.85 % of base) : System.Collections.Specialized.dasm - System.Collections.Specialized.HybridDictionary:get_List():System.Collections.Specialized.ListDictionary:this (FullOpts)
           4 (3.23 % of base) : System.Collections.Specialized.dasm - System.Collections.Specialized.StringCollection:.ctor():this (FullOpts)
           4 (3.23 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.DirectoryAttributeCollection:.ctor():this (FullOpts)
           4 (3.23 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.DirectoryAttributeModificationCollection:.ctor():this (FullOpts)
           4 (3.23 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.DirectoryControlCollection:.ctor():this (FullOpts)
           4 (3.12 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHelpers:GetTimestampStringFromDateTimeOffset(System.DateTimeOffset):System.String (FullOpts)
           4 (3.03 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.UtilityHandle:.cctor() (FullOpts)
           4 (3.03 % of base) : System.Private.CoreLib.dasm - System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1[int]:AwaitUnsafeOnCompleted[System.__Canon,AsyncHelper+<V>d__0](byref,byref,byref) (FullOpts)
           4 (2.86 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.DirectoryAttribute:.ctor():this (FullOpts)
           4 (2.86 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHelpers:CreatePendingModesDictionary():System.Collections.Generic.SortedDictionary`2[System.String,int] (FullOpts)
           4 (2.70 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.DirectoryAttributeModification:.ctor():this (FullOpts)
           4 (2.70 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHelpers:ThrowInvalidNumber() (FullOpts)
           4 (2.56 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.DeleteRequest:.ctor():this (FullOpts)
           4 (2.56 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.DirectoryRequest:.ctor():this (FullOpts)
           4 (2.56 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.ExtendedRequest:.ctor():this (FullOpts)
           4 (2.50 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.SearchResultAttributeCollection:Add(System.String,System.DirectoryServices.Protocols.DirectoryAttribute):this (FullOpts)
           4 (2.44 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.ModifyDNRequest:.ctor():this (FullOpts)
           4 (2.38 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.DirectoryConnection:.ctor():this (FullOpts)
           4 (2.33 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.DsmlAuthRequest:.ctor():this (FullOpts)
           4 (2.22 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.DeleteRequest:.ctor(System.String):this (FullOpts)
           4 (2.22 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.DsmlAuthRequest:.ctor(System.String):this (FullOpts)
           4 (2.22 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.ExtendedRequest:.ctor(System.String):this (FullOpts)
           8 (2.22 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.LdapConnection:Dispose(ubyte):this (FullOpts)
           4 (2.22 % of base) : System.Private.CoreLib.dasm - System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1[int]:AwaitUnsafeOnCompleted[System.__Canon,AsyncHelper+<V>d__0](byref,byref):this (FullOpts)
           4 (2.17 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.LdapPartialResultsProcessor:.ctor(System.Threading.ManualResetEvent):this (FullOpts)
           4 (2.17 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHelpers:.cctor() (FullOpts)
           4 (2.13 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.SearchResultAttributeCollection:Contains(System.String):ubyte:this (FullOpts)
           4 (2.08 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.DirSyncRequestControl:get_Cookie():ubyte[]:this (FullOpts)
           4 (2.08 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.DirSyncResponseControl:get_Cookie():ubyte[]:this (FullOpts)
           4 (2.08 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.VlvRequestControl:get_ContextId():ubyte[]:this (FullOpts)
           4 (2.08 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.VlvRequestControl:get_Target():ubyte[]:this (FullOpts)
           4 (2.08 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.VlvResponseControl:get_ContextId():ubyte[]:this (FullOpts)
           4 (2.08 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHeader:<CollectExtendedAttributesFromStandardFieldsIfNeeded>g__TryAddStringField|120_0(System.Collections.Generic.Dictionary`2[System.String,System.String],System.String,System.String,int) (FullOpts)
           4 (2.04 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.ExtendedRequest:.ctor(System.String,ubyte[]):this (FullOpts)
           4 (1.92 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.ExtendedRequest:get_RequestValue():ubyte[]:this (FullOpts)
           4 (1.92 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.ExtendedResponse:get_ResponseValue():ubyte[]:this (FullOpts)
           4 (1.92 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.PageResultRequestControl:get_Cookie():ubyte[]:this (FullOpts)
           4 (1.92 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.PageResultResponseControl:get_Cookie():ubyte[]:this (FullOpts)
           8 (1.90 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.LdapPartialResultsProcessor:AddResult(System.DirectoryServices.Protocols.SearchResponse,System.DirectoryServices.Protocols.SearchResponse) (FullOpts)
           4 (1.79 % of base) : System.Collections.Specialized.dasm - System.Collections.Specialized.NameObjectCollectionBase:Reset():this (FullOpts)
           4 (1.75 % of base) : System.Collections.Specialized.dasm - System.Collections.Specialized.HybridDictionary:.ctor(int,ubyte):this (FullOpts)
           4 (1.75 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.ModifyDNRequest:.ctor(System.String,System.String,System.String):this (FullOpts)
           4 (1.75 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.SortRequestControl:.ctor(System.String,ubyte):this (FullOpts)
           4 (1.75 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHeader:WriteAsUtf8String(System.ReadOnlySpan`1[ushort],System.Span`1[ubyte]):int (FullOpts)
           4 (1.72 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.AddRequest:.ctor():this (FullOpts)
           4 (1.72 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.ModifyRequest:.ctor():this (FullOpts)
           8 (1.71 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHelpers:CopyBytes(System.IO.Stream,System.IO.Stream,long) (FullOpts)
           4 (1.69 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHelpers:GetTrimmedUtf8String(System.ReadOnlySpan`1[ubyte]):System.String (FullOpts)
           4 (1.67 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.SortRequestControl:.ctor(System.String,System.String,ubyte):this (FullOpts)
           8 (1.67 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHelpers:AdvanceStream(System.IO.Stream,long) (FullOpts)
           4 (1.64 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.SearchRequest:.ctor():this (FullOpts)
           4 (1.61 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.CompareRequest:.ctor():this (FullOpts)
          12 (1.58 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHeader:ReadGnuLongPathDataBlock(System.IO.Stream):this (FullOpts)
           4 (1.54 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.DirectoryAttribute:get_Item(int):System.Object:this (FullOpts)
           8 (1.53 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHeader:ReadExtendedAttributesBlock(System.IO.Stream):this (FullOpts)
           4 (1.49 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarEntry:ExtractToFileInternalAsync(System.String,System.String,ubyte,System.Threading.CancellationToken):System.Threading.Tasks.Task:this (FullOpts)
          28 (1.48 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHeader+<ReadGnuLongPathDataBlockAsync>d__68:MoveNext():this (FullOpts)
           4 (1.47 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHelpers:TryGetStringAsBaseTenInteger(System.Collections.Generic.IReadOnlyDictionary`2[System.String,System.String],System.String,byref):ubyte (FullOpts)
           4 (1.47 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHelpers:TryGetStringAsBaseTenLong(System.Collections.Generic.IReadOnlyDictionary`2[System.String,System.String],System.String,byref):ubyte (FullOpts)
           8 (1.39 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.LdapConnection:Init():this (FullOpts)
           4 (1.39 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.ModifyRequest:.ctor(System.String,System.DirectoryServices.Protocols.DirectoryAttributeModification[]):this (FullOpts)
           4 (1.37 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarReader:PreserveDataStreamForDisposalIfNeeded(System.Formats.Tar.TarEntry):this (FullOpts)
           4 (1.33 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.CompareRequest:.ctor(System.String,System.String,System.Uri):this (FullOpts)
           4 (1.33 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.CompareRequest:.ctor(System.String,System.String,ubyte[]):this (FullOpts)
           4 (1.30 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.DirectoryAttribute:.ctor(System.String,System.Object):this (FullOpts)
           4 (1.30 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.DirectoryAttribute:.ctor(System.String,System.String):this (FullOpts)
           4 (1.30 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHeader:ReadGnuLongPathDataFromBuffer(System.ReadOnlySpan`1[ubyte]):this (FullOpts)
           4 (1.28 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.SearchResultAttributeCollection:get_Item(System.String):System.DirectoryServices.Protocols.DirectoryAttribute:this (FullOpts)
           4 (1.23 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.AddRequest:.ctor(System.String,System.DirectoryServices.Protocols.DirectoryAttribute[]):this (FullOpts)
           8 (1.23 % of base) : System.Collections.Specialized.dasm - System.Collections.Specialized.BitVector32+Section:ToString(System.Collections.Specialized.BitVector32+Section):System.String (FullOpts)
          12 (1.22 % of base) : System.Formats.Tar.dasm - Interop+ErrorInfo:ToString():System.String:this (FullOpts)
           8 (1.21 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.LdapSessionOptions:ProcessDereferenceConnection(long,long):int:this (FullOpts)
           4 (1.20 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.DirectoryAttribute:.ctor(System.String,System.Object[]):this (FullOpts)
           4 (1.15 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.LdapConnection:.cctor() (FullOpts)
           4 (1.15 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.SortRequestControl:get_SortKeys():System.DirectoryServices.Protocols.SortKey[]:this (FullOpts)
          20 (1.15 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHelpers+<AdvanceStreamAsync>d__7:MoveNext():this (FullOpts)
          16 (1.14 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarWriter+<ReadFileFromDiskAndWriteToArchiveStreamAsEntryAsync>d__16:MoveNext():this (FullOpts)
           4 (1.11 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHeader:ReadUstarAttributes(System.ReadOnlySpan`1[ubyte]):this (FullOpts)
           4 (1.10 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarEntry:AttemptSetLastWriteTime(System.String,System.DateTimeOffset) (FullOpts)
           4 (1.10 % of base) : System.Formats.Tar.dasm - System.Formats.Tar.TarHelpers:AttemptDirectorySetLastWriteTime(System.String,System.DateTimeOffset) (FullOpts)

Top method improvements (percentages):
          -4 (-12.50 % of base) : System.Memory.Data.dasm - System.BinaryData:get_Empty():System.BinaryData (FullOpts)
          -4 (-12.50 % of base) : System.Memory.Data.dasm - System.IO.ReadOnlyMemoryStream:FlushAsync(System.Threading.CancellationToken):System.Threading.Tasks.Task:this (FullOpts)
          -4 (-12.50 % of base) : System.Runtime.Caching.dasm - System.Runtime.Caching.Configuration.MemoryCacheElement:get_Properties():System.Configuration.ConfigurationPropertyCollection:this (FullOpts)
          -4 (-12.50 % of base) : System.Runtime.Caching.dasm - System.Runtime.Caching.Configuration.MemoryCacheSection:get_Properties():System.Configuration.ConfigurationPropertyCollection:this (FullOpts)
          -4 (-12.50 % of base) : System.Runtime.Caching.dasm - System.Runtime.Caching.Configuration.MemoryCacheSettingsCollection:get_Properties():System.Configuration.ConfigurationPropertyCollection:this (FullOpts)
          -4 (-12.50 % of base) : System.Runtime.Caching.dasm - System.Runtime.Caching.ObjectCache:get_Host():System.IServiceProvider (FullOpts)
         -32 (-10.13 % of base) : System.Private.CoreLib.dasm - System.Runtime.InteropServices.SafeBuffer:Read[int](ulong):int:this (FullOpts)
         -32 (-10.13 % of base) : System.Private.CoreLib.dasm - System.Runtime.InteropServices.SafeBuffer:Read[long](ulong):long:this (FullOpts)
         -32 (-10.13 % of base) : System.Private.CoreLib.dasm - System.Runtime.InteropServices.SafeBuffer:Read[short](ulong):short:this (FullOpts)
         -32 (-10.13 % of base) : System.Private.CoreLib.dasm - System.Runtime.InteropServices.SafeBuffer:Read[ubyte](ulong):ubyte:this (FullOpts)
          -4 (-10.00 % of base) : System.Runtime.Caching.dasm - System.Runtime.Caching.ChangeMonitor:.ctor():this (FullOpts)
          -4 (-10.00 % of base) : System.Runtime.Caching.dasm - System.Runtime.Caching.FileChangeMonitor:.ctor():this (FullOpts)
          -4 (-10.00 % of base) : System.Runtime.Caching.dasm - System.Runtime.Caching.HostFileChangeMonitor:.ctor():this (FullOpts)
          -4 (-10.00 % of base) : System.Runtime.Caching.dasm - System.Runtime.Caching.MemoryCacheEntryChangeMonitor:.ctor():this (FullOpts)
         -32 (-10.00 % of base) : System.Private.CoreLib.dasm - System.Runtime.InteropServices.SafeBuffer:Read[System.Numerics.Vector`1[float]](ulong):System.Numerics.Vector`1[float]:this (FullOpts)
         -12 (-9.09 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.Trace:get_CorrelationManager():System.Diagnostics.CorrelationManager (FullOpts)
         -28 (-8.97 % of base) : System.Private.CoreLib.dasm - System.Runtime.InteropServices.SafeBuffer:Write[int](ulong,int):this (FullOpts)
         -28 (-8.97 % of base) : System.Private.CoreLib.dasm - System.Runtime.InteropServices.SafeBuffer:Write[long](ulong,long):this (FullOpts)
         -28 (-8.97 % of base) : System.Private.CoreLib.dasm - System.Runtime.InteropServices.SafeBuffer:Write[short](ulong,short):this (FullOpts)
         -28 (-8.97 % of base) : System.Private.CoreLib.dasm - System.Runtime.InteropServices.SafeBuffer:Write[ubyte](ulong,ubyte):this (FullOpts)
         -28 (-8.86 % of base) : System.Private.CoreLib.dasm - System.Runtime.InteropServices.SafeBuffer:Read[double](ulong):double:this (FullOpts)
         -12 (-8.33 % of base) : System.Runtime.Caching.dasm - System.Runtime.Caching.MemoryCache:.cctor() (FullOpts)
          -4 (-7.69 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceInternal:.cctor() (FullOpts)
          -4 (-7.69 % of base) : System.Runtime.Caching.dasm - System.Runtime.Caching.ChangeMonitor:.cctor() (FullOpts)
         -24 (-7.69 % of base) : System.Private.CoreLib.dasm - System.Runtime.InteropServices.SafeBuffer:Write[double](ulong,double):this (FullOpts)
         -24 (-7.69 % of base) : System.Private.CoreLib.dasm - System.Runtime.InteropServices.SafeBuffer:Write[System.Numerics.Vector`1[float]](ulong,System.Numerics.Vector`1[float]):this (FullOpts)
          -4 (-7.14 % of base) : System.Memory.Data.dasm - System.BinaryData:.cctor() (FullOpts)
          -8 (-6.67 % of base) : System.Diagnostics.TraceSource.dasm - System.SR:get_ResourceManager():System.Resources.ResourceManager (FullOpts)
          -8 (-6.67 % of base) : System.Runtime.Caching.dasm - System.SR:get_ResourceManager():System.Resources.ResourceManager (FullOpts)
          -8 (-6.67 % of base) : System.Memory.Data.dasm - System.SR:get_ResourceManager():System.Resources.ResourceManager (FullOpts)
          -8 (-6.45 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.Trace:OnRefreshing() (FullOpts)
          -8 (-6.25 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceInternal:get_AppName():System.String (FullOpts)
         -12 (-5.77 % of base) : System.Runtime.Caching.dasm - System.Runtime.Caching.CacheMemoryMonitor:InitMemoryCacheManager() (FullOpts)
          -4 (-5.56 % of base) : System.Reflection.Context.dasm - System.Reflection.Context.CollectionServices:Empty[System.Nullable`1[int]]():System.Nullable`1[int][] (FullOpts)
         -12 (-4.84 % of base) : System.Runtime.Caching.dasm - System.Runtime.Caching.HostFileChangeMonitor:InitFCN() (FullOpts)
          -4 (-4.76 % of base) : System.Runtime.Caching.dasm - System.Runtime.Caching.MemoryCacheEntryChangeMonitor:.ctor(System.Collections.ObjectModel.ReadOnlyCollection`1[System.String],System.String,System.Runtime.Caching.MemoryCache):this (FullOpts)
          -4 (-4.55 % of base) : System.Runtime.Caching.dasm - System.Runtime.Caching.CacheMemoryMonitor:Dispose():this (FullOpts)
          -8 (-4.44 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.Switch:remove_Initializing(System.EventHandler`1[System.Diagnostics.InitializingSwitchEventArgs]) (FullOpts)
          -8 (-4.44 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.Trace:remove_Refreshing(System.EventHandler) (FullOpts)
          -8 (-4.44 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceSource:remove_Initializing(System.EventHandler`1[System.Diagnostics.InitializingTraceSourceEventArgs]) (FullOpts)
          -4 (-4.35 % of base) : System.Runtime.Caching.dasm - System.Runtime.Caching.CacheEntryChangeMonitor:.ctor():this (FullOpts)
          -8 (-4.17 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.Switch:add_Initializing(System.EventHandler`1[System.Diagnostics.InitializingSwitchEventArgs]) (FullOpts)
          -8 (-4.17 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.Trace:add_Refreshing(System.EventHandler) (FullOpts)
          -8 (-4.17 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceSource:add_Initializing(System.EventHandler`1[System.Diagnostics.InitializingTraceSourceEventArgs]) (FullOpts)
          -8 (-3.85 % of base) : System.Collections.Specialized.dasm - System.Collections.Specialized.BitVector32:ToString(System.Collections.Specialized.BitVector32):System.String (FullOpts)
         -36 (-3.81 % of base) : Microsoft.VisualBasic.Core.dasm - Microsoft.VisualBasic.CompilerServices.VB6RandomFile:OpenFile():this (FullOpts)
          -4 (-3.70 % of base) : System.Runtime.Caching.dasm - System.Runtime.Caching.Configuration.MemoryCacheSettingsCollection:.cctor() (FullOpts)
          -4 (-3.57 % of base) : System.Runtime.Caching.dasm - System.Runtime.Caching.Configuration.MemoryCacheSection:get_NamedCaches():System.Runtime.Caching.Configuration.MemoryCacheSettingsCollection:this (FullOpts)
          -4 (-3.45 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.Switch:.cctor() (FullOpts)
          -4 (-3.45 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceSource:.cctor() (FullOpts)
          -4 (-3.45 % of base) : System.Runtime.Caching.dasm - System.Runtime.Caching.Configuration.MemoryCacheElement:set_Name(System.String):this (FullOpts)
          -4 (-3.03 % of base) : Microsoft.VisualBasic.Core.dasm - Microsoft.VisualBasic.CompilerServices.CacheDict`2[short,System.Nullable`1[int]]:.ctor(int):this (FullOpts)
          -4 (-3.03 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceEventCache:get_ThreadId():System.String:this (FullOpts)
          -4 (-2.86 % of base) : System.Runtime.Caching.dasm - System.Runtime.Caching.Configuration.MemoryCacheElement:.ctor(System.String):this (FullOpts)
          -4 (-2.70 % of base) : System.Runtime.Caching.dasm - System.Runtime.Caching.Configuration.MemoryCacheElement:set_CacheMemoryLimitMegabytes(int):this (FullOpts)
          -4 (-2.70 % of base) : System.Runtime.Caching.dasm - System.Runtime.Caching.Configuration.MemoryCacheElement:set_PhysicalMemoryLimitPercentage(int):this (FullOpts)
          -4 (-2.70 % of base) : System.Runtime.Caching.dasm - System.Runtime.Caching.Configuration.MemoryCacheElement:set_PollingInterval(System.TimeSpan):this (FullOpts)
          -4 (-2.56 % of base) : System.Runtime.Caching.dasm - System.Runtime.Caching.Configuration.MemoryCacheSettingsCollection:CreateNewElement(System.String):System.Configuration.ConfigurationElement:this (FullOpts)
          -8 (-2.50 % of base) : System.Composition.Hosting.dasm - System.Composition.Hosting.Providers.ImportMany.ImportManyExportDescriptorProvider+<>c__3`1[double]:<GetImportManyDescriptor>b__3_1(System.Collections.Generic.IEnumerable`1[System.Composition.Hosting.Core.CompositionDependency]):System.Composition.Hosting.Core.ExportDescriptor:this (FullOpts)
          -4 (-2.33 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.Switch:OnInitializing():this (FullOpts)
          -8 (-2.27 % of base) : System.Memory.Data.dasm - System.IO.ReadOnlyMemoryStream:CopyToAsync(System.IO.Stream,int,System.Threading.CancellationToken):System.Threading.Tasks.Task:this (FullOpts)
          -4 (-2.27 % of base) : System.Runtime.Caching.dasm - System.Runtime.Caching.CacheItemPolicy:get_ChangeMonitors():System.Collections.ObjectModel.Collection`1[System.Runtime.Caching.ChangeMonitor]:this (FullOpts)
          -4 (-2.22 % of base) : System.Composition.Hosting.dasm - System.Composition.Hosting.Providers.ExportFactory.ExportFactoryExportDescriptorProvider+<>c__DisplayClass2_2`1[int]:<GetExportFactoryDescriptors>b__3(System.Composition.Hosting.Core.LifetimeContext,System.Composition.Hosting.Core.CompositionOperation):System.Object:this (FullOpts)
          -4 (-2.22 % of base) : System.Composition.Hosting.dasm - System.Composition.Hosting.Providers.ExportFactory.ExportFactoryExportDescriptorProvider+<>c__DisplayClass2_2`1[ubyte]:<GetExportFactoryDescriptors>b__3(System.Composition.Hosting.Core.LifetimeContext,System.Composition.Hosting.Core.CompositionOperation):System.Object:this (FullOpts)
          -4 (-2.22 % of base) : System.Runtime.Caching.dasm - System.Runtime.Caching.FileChangeNotificationSystem:.ctor():this (FullOpts)
          -4 (-2.17 % of base) : System.Memory.Data.dasm - System.BinaryData:.ctor(System.String):this (FullOpts)
          -4 (-2.13 % of base) : Microsoft.Extensions.Logging.TraceSource.dasm - Microsoft.Extensions.Logging.TraceSource.TraceSourceLoggerProvider:.ctor(System.Diagnostics.SourceSwitch):this (FullOpts)
          -4 (-2.00 % of base) : Microsoft.Extensions.Logging.TraceSource.dasm - Microsoft.Extensions.Logging.TraceSource.TraceSourceLoggerProvider:.ctor(System.Diagnostics.SourceSwitch,System.Diagnostics.TraceListener):this (FullOpts)
          -8 (-1.98 % of base) : System.Composition.Hosting.dasm - System.Composition.Hosting.Providers.ImportMany.ImportManyExportDescriptorProvider:GetImportManyDescriptor[short](System.Composition.Hosting.Core.CompositionContract,System.Composition.Hosting.Core.CompositionContract,System.Composition.Hosting.Core.DependencyAccessor):System.Composition.Hosting.Core.ExportDescriptorPromise (FullOpts)
          -4 (-1.92 % of base) : System.Composition.Hosting.dasm - System.Composition.Hosting.Providers.Lazy.LazyExportDescriptorProvider+<>c__DisplayClass2_2`1[int]:<GetLazyDefinitions>b__3(System.Composition.Hosting.Core.LifetimeContext,System.Composition.Hosting.Core.CompositionOperation):System.Object:this (FullOpts)
          -4 (-1.89 % of base) : Microsoft.Extensions.Logging.TraceSource.dasm - Microsoft.Extensions.Logging.TraceSourceFactoryExtensions+<>c__DisplayClass6_0:<AddTraceSource>b__0(System.IServiceProvider):Microsoft.Extensions.Logging.ILoggerProvider:this (FullOpts)
          -4 (-1.85 % of base) : System.Runtime.Caching.dasm - System.Runtime.Caching.ObjectCache:set_Host(System.IServiceProvider) (FullOpts)
          -4 (-1.75 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceListenerCollection:Add(System.Diagnostics.TraceListener):int:this (FullOpts)
          -4 (-1.72 % of base) : System.Memory.Data.dasm - System.BinaryData:ToString():System.String:this (FullOpts)
          -4 (-1.69 % of base) : System.Runtime.Caching.dasm - System.Runtime.Caching.MemoryCache:get_Default():System.Runtime.Caching.MemoryCache (FullOpts)
         -12 (-1.68 % of base) : System.Transactions.Local.dasm - System.Transactions.TransactionTable:.ctor():this (FullOpts)
          -4 (-1.64 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceInternal:InitializeSettings() (FullOpts)
          -4 (-1.61 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceListenerCollection:Insert(int,System.Diagnostics.TraceListener):this (FullOpts)
          -8 (-1.60 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceInternal:Close() (FullOpts)
          -8 (-1.59 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.CorrelationManager+AsyncLocalStackWrapper:ToArray():System.Object[]:this (FullOpts)
          -4 (-1.52 % of base) : Microsoft.Extensions.DependencyModel.dasm - Microsoft.Extensions.DependencyModel.Resolution.ReferenceAssemblyPathResolver:GetDefaultReferenceAssembliesPath(Microsoft.Extensions.DependencyModel.IFileSystem,Microsoft.Extensions.DependencyModel.IEnvironment):System.String (FullOpts)
         -20 (-1.51 % of base) : System.Net.NameResolution.dasm - System.Net.Dns:RunAsync[double](System.Func`3[System.Object,System.Net.NameResolutionActivity,double],System.Object,System.Threading.CancellationToken):System.Threading.Tasks.Task`1[double] (FullOpts)
         -20 (-1.51 % of base) : System.Net.NameResolution.dasm - System.Net.Dns:RunAsync[short](System.Func`3[System.Object,System.Net.NameResolutionActivity,short],System.Object,System.Threading.CancellationToken):System.Threading.Tasks.Task`1[short] (FullOpts)
         -20 (-1.51 % of base) : System.Net.NameResolution.dasm - System.Net.Dns:RunAsync[System.Nullable`1[int]](System.Func`3[System.Object,System.Net.NameResolutionActivity,System.Nullable`1[int]],System.Object,System.Threading.CancellationToken):System.Threading.Tasks.Task`1[System.Nullable`1[int]] (FullOpts)
          -4 (-1.41 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.Switch:OnValueChanged():this (FullOpts)
          -4 (-1.39 % of base) : Microsoft.Extensions.Logging.TraceSource.dasm - Microsoft.Extensions.Logging.TraceSourceFactoryExtensions:AddTraceSource(Microsoft.Extensions.Logging.ILoggerFactory,System.Diagnostics.SourceSwitch):Microsoft.Extensions.Logging.ILoggerFactory (FullOpts)
          -4 (-1.39 % of base) : System.Memory.Data.dasm - System.BinaryData:ToArray():ubyte[]:this (FullOpts)
          -4 (-1.39 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceInternal:Refresh() (FullOpts)
          -4 (-1.39 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceListenerCollection:System.Collections.IList.Remove(System.Object):this (FullOpts)
          -4 (-1.37 % of base) : System.Runtime.Caching.dasm - System.Runtime.Caching.Configuration.MemoryCacheSection:.cctor() (FullOpts)
          -8 (-1.35 % of base) : System.Diagnostics.Process.dasm - System.Diagnostics.ProcessManager:GetModules(int):System.Diagnostics.ProcessModuleCollection (FullOpts)
          -4 (-1.18 % of base) : System.Runtime.Caching.dasm - System.Runtime.Caching.CacheMemoryMonitor:GetCurrentPressure():int:this (FullOpts)
          -4 (-1.16 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.TraceListener:TraceEvent(System.Diagnostics.TraceEventCache,System.String,int,int,System.String,System.Object[]):this (FullOpts)
          -4 (-1.12 % of base) : Microsoft.Extensions.Logging.TraceSource.dasm - Microsoft.Extensions.Logging.TraceSourceFactoryExtensions:AddTraceSource(Microsoft.Extensions.Logging.ILoggerFactory,System.String):Microsoft.Extensions.Logging.ILoggerFactory (FullOpts)
         -28 (-1.11 % of base) : System.Runtime.Caching.dasm - System.Runtime.Caching.MemoryCacheEntryChangeMonitor:InitDisposableMembers(System.Runtime.Caching.MemoryCache):this (FullOpts)
          -8 (-1.10 % of base) : System.Composition.Runtime.dasm - System.Composition.Hosting.Core.CompositionContract:ConstraintEqual(System.Collections.Generic.IDictionary`2[System.String,System.Object],System.Collections.Generic.IDictionary`2[System.String,System.Object]):ubyte (FullOpts)
          -4 (-1.05 % of base) : System.Diagnostics.TraceSource.dasm - System.Diagnostics.SwitchAttribute:GetAll(System.Reflection.Assembly):System.Diagnostics.SwitchAttribute[] (FullOpts)
          -4 (-1.04 % of base) : System.Private.CoreLib.dasm - System.Runtime.InteropServices.SafeBuffer:ReadSpan[double](ulong,System.Span`1[double]):this (FullOpts)
          -4 (-1.04 % of base) : System.Private.CoreLib.dasm - System.Runtime.InteropServices.SafeBuffer:ReadSpan[int](ulong,System.Span`1[int]):this (FullOpts)
          -4 (-1.04 % of base) : System.Private.CoreLib.dasm - System.Runtime.InteropServices.SafeBuffer:ReadSpan[long](ulong,System.Span`1[long]):this (FullOpts)

350 total methods with Code Size differences (164 improved, 186 regressed), 230534 unchanged.

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

Artifacts:

• build-artifacts-main.zip (637 MB)
• build-clr-checked-main.zip (88 MB)
• build-artifacts-pr.zip (638 MB)
• build-clr-checked-pr.zip (88 MB)
• jit-diffs-frameworks.zip (284 MB)
• diff-frameworks.txt (70 KB)

[MihuBot]

Top method regressions

28 (1.48 % of base) - System.Formats.Tar.TarHeader+d__68:MoveNext():this

 ; Assembly listing for method System.Formats.Tar.TarHeader+<ReadGnuLongPathDataBlockAsync>d__68:MoveNext():this (FullOpts)
 ; Emitting BLENDED_CODE for generic ARM64 - Unix
 ; FullOpts code
 ; optimized code
 ; fp based frame
 ; fully interruptible
 ; No PGO data
 ; 0 inlinees with PGO data; 38 single block inlinees; 19 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 this         [V00,T01] ( 30, 28   )   byref  ->  [fp+0x10]  this EH-live single-def
 ;  V01 loc0         [V01,T59] (  2,  2   )     int  ->   x1        
 ;  V02 loc1         [V02,T06] (  8,  8   )     ref  ->  x19         class-hnd exact single-def <System.Formats.Tar.TarHeader>
 ;  V03 loc2         [V03    ] ( 10, 10   )  struct (16) [fp+0x88]  do-not-enreg[XSF] must-init addr-exposed ld-addr-op <System.Runtime.CompilerServices.ConfiguredValueTaskAwaitable+ConfiguredValueTaskAwaiter>
 ;* V04 loc3         [V04    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op <System.Threading.Tasks.ValueTask>
 ;* V05 loc4         [V05    ] (  0,  0   )  struct (16) zero-ref    do-not-enreg[S] ld-addr-op <System.Runtime.CompilerServices.ConfiguredValueTaskAwaitable>
 ;* V06 loc5         [V06    ] (  0,  0   )     ref  ->  zero-ref    class-hnd single-def <System.Exception>
 ;# V07 OutArgs      [V07    ] (  1,  1   )  struct ( 0) [sp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace"
 ;* V08 tmp1         [V08    ] (  0,  0   )     int  ->  zero-ref    "dup spill"
 ;* V09 tmp2         [V09    ] (  0,  0   )  struct (16) zero-ref    "spilled call-like call argument" <System.Span`1[ubyte]>
 ;* V10 tmp3         [V10    ] (  0,  0   )  struct (16) zero-ref    "spilled call-like call argument" <System.ReadOnlySpan`1[ubyte]>
 ;  V11 tmp4         [V11,T73] (  2,  0   )     ref  ->   x1         class-hnd single-def "impSpillSpecialSideEff" <System.Exception>
 ;  V12 tmp5         [V12,T25] (  3,  4   )   byref  ->   x1         single-def "Inlining Arg"
 ;* V13 tmp6         [V13,T69] (  0,  0   )   ubyte  ->  zero-ref    "Inline return value spill temp"
 ;* V14 tmp7         [V14    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "Inlining Arg" <System.Threading.CancellationTokenSource>
 ;  V15 tmp8         [V15,T07] (  4,  8   )     ref  ->  x15         class-hnd single-def "Inlining Arg" <ubyte[]>
 ;  V16 tmp9         [V16,T10] (  4,  8   )     int  ->   x0         "Inlining Arg"
 ;* V17 tmp10        [V17    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "NewObj constructor temp" <System.Memory`1[ubyte]>
 ;  V18 tmp11        [V18,T14] (  3,  6   )     ref  ->   x0         class-hnd single-def "Inlining Arg" <System.IO.Stream>
 ;* V19 tmp12        [V19    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "Inlining Arg" <System.Memory`1[ubyte]>
 ;* V20 tmp13        [V20    ] (  0,  0   )  struct (16) zero-ref    "impAppendStmt" <System.Memory`1[ubyte]>
 ;* V21 tmp14        [V21    ] (  0,  0   )  struct ( 8) zero-ref    "Inlining Arg" <System.Threading.CancellationToken>
 ;  V22 tmp15        [V22    ] (  3,  6   )  struct (16) [fp+0x78]  do-not-enreg[SBR] multireg-ret must-init "spilled call-like call argument" <System.Threading.Tasks.ValueTask`1[int]>
 ;  V23 tmp16        [V23    ] ( 11, 11   )  struct (80) [fp+0x28]  do-not-enreg[XSF] must-init addr-exposed ld-addr-op "Inline ldloca(s) first use temp" <System.IO.Stream+<ReadAtLeastAsyncCore>d__46>
 ;* V24 tmp17        [V24    ] (  0,  0   )     int  ->  zero-ref    "Inlining Arg"
 ;* V25 tmp18        [V25    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "Inline ldloca(s) first use temp" <System.Runtime.CompilerServices.PoolingAsyncValueTaskMethodBuilder`1[int]>
 ;* V26 tmp19        [V26    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "NewObj constructor temp" <System.Threading.Tasks.ValueTask>
 ;* V27 tmp20        [V27    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "Inlining Arg" <System.Object>
 ;* V28 tmp21        [V28    ] (  0,  0   )   short  ->  zero-ref    "Inlining Arg"
 ;* V29 tmp22        [V29    ] (  0,  0   )   ubyte  ->  zero-ref    "Inlining Arg"
 ;* V30 tmp23        [V30    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "NewObj constructor temp" <System.Threading.Tasks.ValueTask>
 ;* V31 tmp24        [V31    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "Inline stloc first use temp" <System.Threading.Tasks.ValueTask>
 ;* V32 tmp25        [V32    ] (  0,  0   )  struct (16) zero-ref    do-not-enreg[S] ld-addr-op "NewObj constructor temp" <System.Runtime.CompilerServices.ConfiguredValueTaskAwaitable>
 ;* V33 tmp26        [V33    ] (  0,  0   )     ref  ->  zero-ref    class-hnd single-def "Inlining Arg" <System.Object>
 ;  V34 tmp27        [V34,T30] (  2,  4   )   short  ->   x1         "Inlining Arg"
 ;* V35 tmp28        [V35    ] (  0,  0   )  struct (16) zero-ref    do-not-enreg[S] ld-addr-op "NewObj constructor temp" <System.Runtime.CompilerServices.ConfiguredValueTaskAwaitable+ConfiguredValueTaskAwaiter>
 ;* V36 tmp29        [V36    ] (  0,  0   )   ubyte  ->  zero-ref    "Inline return value spill temp"
 ;  V37 tmp30        [V37,T19] (  4,  4   )     ref  ->  x21         class-hnd single-def "Inline stloc first use temp" <System.Object>
 ;  V38 tmp31        [V38,T35] (  3,  3   )     ref  ->   x0         class-hnd single-def "Inline stloc first use temp" <System.Threading.Tasks.Task>
 ;* V39 tmp32        [V39    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "updating class info" <System.Threading.Tasks.Sources.IValueTaskSource>
 ;* V40 tmp33        [V40    ] (  0,  0   )     int  ->  zero-ref    "Inlining Arg"
 ;* V41 tmp34        [V41    ] (  0,  0   )   byref  ->  zero-ref    "Inlining Arg"
 ;* V42 tmp35        [V42    ] (  0,  0   )   byref  ->  zero-ref    "Inlining Arg"
 ;* V43 tmp36        [V43    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "Inline stloc first use temp" <System.Runtime.CompilerServices.IAsyncStateMachineBox>
 ;  V44 tmp37        [V44,T20] (  4,  4   )     ref  ->  x20         class-hnd single-def "Inline stloc first use temp" <System.Object>
 ;  V45 tmp38        [V45,T21] (  4,  4   )     ref  ->   x0         class-hnd single-def "Inline stloc first use temp" <System.Threading.Tasks.Task>
 ;* V46 tmp39        [V46    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "updating class info" <System.Threading.Tasks.Sources.IValueTaskSource>
 ;* V47 tmp40        [V47    ] (  0,  0   )  struct (16) zero-ref    "Inline return value spill temp" <System.Span`1[ubyte]>
 ;  V48 tmp41        [V48,T12] (  6,  6   )   byref  ->  x21         "Inline stloc first use temp"
 ;  V49 tmp42        [V49,T13] (  6,  6   )     int  ->  x22         "Inline stloc first use temp"
 ;  V50 tmp43        [V50,T08] (  4,  8   )   byref  ->  x20         single-def "Inlining Arg"
 ;  V51 tmp44        [V51,T11] (  7,  7   )     ref  ->   x1         class-hnd single-def "Inline stloc first use temp" <System.Object>
 ;* V52 tmp45        [V52    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "NewObj constructor temp" <System.Span`1[ubyte]>
 ;* V53 tmp46        [V53    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "updating class info" <System.Buffers.MemoryManager`1[ubyte]>
 ;* V54 tmp47        [V54    ] (  0,  0   )  struct (16) zero-ref    do-not-enreg[SBR] multireg-ret "Return value temp for multireg return" <System.Span`1[ubyte]>
 ;* V55 tmp48        [V55    ] (  0,  0   )  struct (16) zero-ref    multireg-ret ld-addr-op "Inline stloc first use temp" <System.Span`1[ubyte]>
 ;  V56 tmp49        [V56,T44] (  3,  3   )    long  ->   x1         "Inline stloc first use temp"
 ;  V57 tmp50        [V57,T45] (  3,  3   )     int  ->   x2         "Inline stloc first use temp"
 ;* V58 tmp51        [V58    ] (  0,  0   )     ref  ->  zero-ref    class-hnd single-def "updating class info" <ubyte[]>
 ;* V59 tmp52        [V59    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "updating class info" <ubyte[]>
 ;  V60 tmp53        [V60,T26] (  2,  4   )   byref  ->   x2         single-def "Inlining Arg"
 ;* V61 tmp54        [V61    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "Inlining Arg" <System.Span`1[ubyte]>
 ;* V62 tmp55        [V62    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "Inlining Arg" <System.Span`1[ubyte]>
 ;* V63 tmp56        [V63    ] (  0,  0   )  struct (16) zero-ref    multireg-arg ld-addr-op "NewObj constructor temp" <System.ReadOnlySpan`1[ubyte]>
 ;* V64 tmp57        [V64    ] (  0,  0   )   byref  ->  zero-ref    single-def "Inlining Arg"
 ;* V65 tmp58        [V65    ] (  0,  0   )     int  ->  zero-ref    "Inlining Arg"
 ;* V66 tmp59        [V66    ] (  0,  0   )     ref  ->  zero-ref    class-hnd exact single-def "Inline stloc first use temp" <System.String>
 ;  V67 tmp60        [V67,T22] (  4,  4   )     ref  ->  x15         class-hnd "Inline return value spill temp" <System.String>
 ;* V68 tmp61        [V68    ] (  0,  0   )  struct (16) zero-ref    multireg-ret ld-addr-op "Inlining Arg" <System.ReadOnlySpan`1[ubyte]>
 ;  V69 tmp62        [V69,T15] (  3,  6   )     ref  ->  x20         class-hnd exact single-def "Inlining Arg" <System.Text.UTF8Encoding+UTF8EncodingSealed>
 ;* V70 tmp63        [V70    ] (  0,  0   )     ref  ->  zero-ref    class-hnd exact single-def "Inline return value spill temp" <System.String>
 ;* V71 tmp64        [V71    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "Inlining Arg" <System.ReadOnlySpan`1[ubyte]>
 ;  V72 tmp65        [V72    ] (  2,  2   )   byref  ->  [fp+0x20]  must-init pinned "Inline stloc first use temp"
 ;  V73 tmp66        [V73,T36] (  3,  3   )   byref  ->  x22         "Inline return value spill temp"
 ;* V74 tmp67        [V74    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "Inlining Arg" <System.ReadOnlySpan`1[ubyte]>
 ;  V75 tmp68        [V75,T37] (  3,  3   )     ref  ->  x15         class-hnd "Inline return value spill temp" <System.String>
 ;* V76 tmp69        [V76    ] (  0,  0   )    long  ->  zero-ref    "Inlining Arg"
 ;* V77 tmp70        [V77    ] (  0,  0   )     int  ->  zero-ref    "Inlining Arg"
 ;  V78 tmp71        [V78,T23] (  4,  4   )     int  ->  x23         "Inline stloc first use temp"
 ;  V79 tmp72        [V79,T09] (  4,  8   )     ref  ->  x24         class-hnd exact single-def "dup spill" <System.String>
 ;  V80 tmp73        [V80    ] (  4,  4   )   byref  ->  [fp+0x18]  must-init pinned "Inline stloc first use temp"
 ;* V81 tmp74        [V81    ] (  0,  0   )    long  ->  zero-ref    "Inline stloc first use temp"
 ;  V82 tmp75        [V82,T16] (  3,  6   )   byref  ->  x20         single-def "Inlining Arg"
 ;* V83 tmp76        [V83    ] (  0,  0   )  struct ( 8) zero-ref    ld-addr-op "Inline ldloca(s) first use temp" <System.Threading.Tasks.VoidTaskResult>
 ;  V84 tmp77        [V84,T03] (  7, 14   )     ref  ->  x21         class-hnd single-def "impAppendStmt" <System.Threading.Tasks.Task`1[System.Threading.Tasks.VoidTaskResult]>
 ;  V85 tmp78        [V85,T31] (  2,  4   )  struct ( 8) x22         "Inlining Arg" <System.Threading.Tasks.VoidTaskResult>
 ;  V86 tmp79        [V86,T05] (  6, 12   )     ref  ->  x20         class-hnd exact single-def "impAppendStmt" <System.Threading.Tasks.TplEventSource>
 ;* V87 tmp80        [V87    ] (  0,  0   )     ref  ->  zero-ref    class-hnd exact "Inlining Arg" <System.Threading.Tasks.TplEventSource>
 ;  V88 tmp81        [V88,T32] (  2,  4   )     int  ->  x19         "Inlining Arg"
 ;* V89 tmp82        [V89    ] (  0,  0   )   ubyte  ->  zero-ref    "Inline return value spill temp"
 ;* V90 tmp83        [V90    ] (  0,  0   )   ubyte  ->  zero-ref    "Inline return value spill temp"
 ;* V91 tmp84        [V91,T70] (  0,  0   )   ubyte  ->  zero-ref    "Inline stloc first use temp"
 ;  V92 tmp85        [V92,T38] (  3,  3   )     ref  ->  x22         class-hnd exact single-def "Inline stloc first use temp" <System.Threading.Tasks.Task+ContingentProperties>
 ;  V93 tmp86        [V93,T60] (  2,  2   )   ubyte  ->   x2         "Inline return value spill temp"
 ;  V94 tmp87        [V94,T18] (  5,  5   )     int  ->   x1         "Inline stloc first use temp"
 ;  V95 tmp88        [V95,T46] (  3,  3   )   ubyte  ->   x2         "Inline return value spill temp"
 ;  V96 tmp89        [V96,T00] (  6, 41   )     int  ->   x1         "Inline stloc first use temp"
 ;  V97 tmp90        [V97,T02] (  3, 24   )     int  ->   x3         "Inline stloc first use temp"
 ;  V98 tmp91        [V98,T39] (  3,  3   )     ref  ->   x0         class-hnd single-def "Inline stloc first use temp" <System.Threading.ManualResetEventSlim>
 ;* V99 tmp92        [V99    ] (  0,  0   )     ref  ->  zero-ref    single-def "field V04._obj (fldOffset=0x0)" P-INDEP
 ;* V100 tmp93       [V100    ] (  0,  0   )   short  ->  zero-ref    "field V04._token (fldOffset=0x8)" P-INDEP
 ;* V101 tmp94       [V101    ] (  0,  0   )   ubyte  ->  zero-ref    "field V04._continueOnCapturedContext (fldOffset=0xa)" P-INDEP
 ;* V102 tmp95       [V102    ] (  0,  0   )   byref  ->  zero-ref    "field V09._reference (fldOffset=0x0)" P-INDEP
 ;* V103 tmp96       [V103    ] (  0,  0   )     int  ->  zero-ref    "field V09._length (fldOffset=0x8)" P-INDEP
 ;* V104 tmp97       [V104    ] (  0,  0   )   byref  ->  zero-ref    "field V10._reference (fldOffset=0x0)" P-INDEP
 ;* V105 tmp98       [V105    ] (  0,  0   )     int  ->  zero-ref    "field V10._length (fldOffset=0x8)" P-INDEP
 ;  V106 tmp99       [V106,T40] (  3,  3   )     ref  ->  x15         "field V17._object (fldOffset=0x0)" P-INDEP
 ;* V107 tmp100      [V107,T61] (  0,  0   )     int  ->  zero-ref    "field V17._index (fldOffset=0x8)" P-INDEP
 ;  V108 tmp101      [V108,T47] (  3,  3   )     int  ->   x0         "field V17._length (fldOffset=0xc)" P-INDEP
 ;  V109 tmp102      [V109,T53] (  2,  2   )     ref  ->   x1         single-def "field V19._object (fldOffset=0x0)" P-INDEP
 ;  V110 tmp103      [V110,T62] (  2,  2   )     int  ->   x2         "field V19._index (fldOffset=0x8)" P-INDEP
 ;  V111 tmp104      [V111,T48] (  3,  3   )     int  ->   x3         "field V19._length (fldOffset=0xc)" P-INDEP
 ;* V112 tmp105      [V112    ] (  0,  0   )     ref  ->  zero-ref    single-def "field V20._object (fldOffset=0x0)" P-INDEP
 ;* V113 tmp106      [V113    ] (  0,  0   )     int  ->  zero-ref    "field V20._index (fldOffset=0x8)" P-INDEP
 ;* V114 tmp107      [V114    ] (  0,  0   )     int  ->  zero-ref    "field V20._length (fldOffset=0xc)" P-INDEP
 ;  V115 tmp108      [V115,T54] (  2,  2   )     ref  ->   x4         single-def "field V21._source (fldOffset=0x0)" P-INDEP
 ;  V116 tmp109      [V116,T51] (  2,  3   )     ref  ->  [fp+0x78]  do-not-enreg[] "field V22._obj (fldOffset=0x0)" P-DEP
 ;  V117 tmp110      [V117,T67] (  1,  2   )     int  ->  [fp+0x80]  do-not-enreg[] "field V22._result (fldOffset=0x8)" P-DEP
 ;  V118 tmp111      [V118,T52] (  2,  3   )   short  ->  [fp+0x84]  do-not-enreg[] "field V22._token (fldOffset=0xc)" P-DEP
 ;  V119 tmp112      [V119,T68] (  1,  2   )   ubyte  ->  [fp+0x86]  do-not-enreg[] "field V22._continueOnCapturedContext (fldOffset=0xe)" P-DEP
 ;* V120 tmp113      [V120    ] (  0,  0   )     ref  ->  zero-ref    single-def "field V25.m_task (fldOffset=0x0)" P-INDEP
 ;* V121 tmp114      [V121    ] (  0,  0   )     int  ->  zero-ref    "field V25._result (fldOffset=0x8)" P-INDEP
 ;* V122 tmp115      [V122    ] (  0,  0   )     ref  ->  zero-ref    single-def "field V26._obj (fldOffset=0x0)" P-INDEP
 ;  V123 tmp116      [V123,T63] (  2,  2   )   short  ->   x1         "field V26._token (fldOffset=0x8)" P-INDEP
 ;* V124 tmp117      [V124    ] (  0,  0   )   ubyte  ->  zero-ref    "field V26._continueOnCapturedContext (fldOffset=0xa)" P-INDEP
 ;  V125 tmp118      [V125,T55] (  2,  2   )     ref  ->   x0         single-def "field V30._obj (fldOffset=0x0)" P-INDEP
 ;  V126 tmp119      [V126,T64] (  2,  2   )   short  ->   x1         "field V30._token (fldOffset=0x8)" P-INDEP
 ;* V127 tmp120      [V127,T71] (  0,  0   )   ubyte  ->  zero-ref    "field V30._continueOnCapturedContext (fldOffset=0xa)" P-INDEP
 ;* V128 tmp121      [V128    ] (  0,  0   )     ref  ->  zero-ref    "field V31._obj (fldOffset=0x0)" P-INDEP
 ;* V129 tmp122      [V129    ] (  0,  0   )   short  ->  zero-ref    "field V31._token (fldOffset=0x8)" P-INDEP
 ;* V130 tmp123      [V130    ] (  0,  0   )   ubyte  ->  zero-ref    "field V31._continueOnCapturedContext (fldOffset=0xa)" P-INDEP
 ;* V131 tmp124      [V131    ] (  0,  0   )   byref  ->  zero-ref    "field V47._reference (fldOffset=0x0)" P-INDEP
 ;* V132 tmp125      [V132    ] (  0,  0   )     int  ->  zero-ref    "field V47._length (fldOffset=0x8)" P-INDEP
 ;* V133 tmp126      [V133    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V52._reference (fldOffset=0x0)" P-INDEP
 ;* V134 tmp127      [V134    ] (  0,  0   )     int  ->  zero-ref    "field V52._length (fldOffset=0x8)" P-INDEP
 ;* V135 tmp128      [V135    ] (  0,  0   )   byref  ->  zero-ref    "field V54._reference (fldOffset=0x0)" P-DEP
 ;* V136 tmp129      [V136    ] (  0,  0   )     int  ->  zero-ref    "field V54._length (fldOffset=0x8)" P-DEP
 ;  V137 tmp130      [V137,T56] (  2,  2   )   byref  ->  x21         "field V55._reference (fldOffset=0x0)" P-INDEP
 ;  V138 tmp131      [V138,T65] (  2,  2   )     int  ->  x22         "field V55._length (fldOffset=0x8)" P-INDEP
 ;* V139 tmp132      [V139    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V61._reference (fldOffset=0x0)" P-INDEP
 ;* V140 tmp133      [V140    ] (  0,  0   )     int  ->  zero-ref    "field V61._length (fldOffset=0x8)" P-INDEP
 ;* V141 tmp134      [V141    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V62._reference (fldOffset=0x0)" P-INDEP
 ;* V142 tmp135      [V142    ] (  0,  0   )     int  ->  zero-ref    "field V62._length (fldOffset=0x8)" P-INDEP
 ;  V143 tmp136      [V143,T57] (  2,  2   )   byref  ->  x21         single-def "field V63._reference (fldOffset=0x0)" P-INDEP
 ;  V144 tmp137      [V144,T66] (  2,  2   )     int  ->  x22         "field V63._length (fldOffset=0x8)" P-INDEP
 ;  V145 tmp138      [V145,T58] (  2,  2   )   byref  ->   x0         single-def "field V68._reference (fldOffset=0x0)" P-INDEP
 ;  V146 tmp139      [V146,T24] (  4,  4   )     int  ->  x21         "field V68._length (fldOffset=0x8)" P-INDEP
 ;* V147 tmp140      [V147    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V71._reference (fldOffset=0x0)" P-INDEP
 ;* V148 tmp141      [V148    ] (  0,  0   )     int  ->  zero-ref    "field V71._length (fldOffset=0x8)" P-INDEP
 ;* V149 tmp142      [V149    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V74._reference (fldOffset=0x0)" P-INDEP
 ;* V150 tmp143      [V150    ] (  0,  0   )     int  ->  zero-ref    "field V74._length (fldOffset=0x8)" P-INDEP
 ;  V151 tmp144      [V151,T27] (  2,  4   )     ref  ->   x0         single-def "argument with side effect"
 ;  V152 tmp145      [V152,T28] (  2,  4   )     ref  ->   x1         single-def "argument with side effect"
 ;  V153 tmp146      [V153,T17] (  3,  6   )    long  ->  x22         "Cast away GC"
 ;  V154 tmp147      [V154,T33] (  2,  4   )    long  ->   x3         "Cast away GC"
 ;  V155 tmp148      [V155,T34] (  2,  4   )    long  ->   x3         "argument with side effect"
 ;  V156 tmp149      [V156,T29] (  2,  4   )     ref  ->   x0         single-def "argument with side effect"
 ;  V157 PSPSym      [V157,T72] (  1,  1   )    long  ->  [fp+0x98]  do-not-enreg[V] "PSPSym"
 ;  V158 cse0        [V158,T41] (  3,  3   )     ref  ->  x20         "CSE #15: moderate"
 ;  V159 cse1        [V159,T49] (  3,  3   )     int  ->  x14         "CSE #06: moderate"
 ;  V160 cse2        [V160,T50] (  3,  3   )     int  ->   x1         "CSE #16: moderate"
 ;  V161 cse3        [V161,T04] (  7, 14   )   byref  ->   x0         "CSE #17: aggressive"
 ;  V162 cse4        [V162,T42] (  3,  3   )     ref  ->   x2         "CSE #01: moderate"
 ;  V163 cse5        [V163,T43] (  3,  3   )     ref  ->  x21         "CSE #11: moderate"
 ;
 ; Lcl frame size = 144
 
 G_M3290_IG01:
             stp     fp, lr, [sp, #-0xD0]!
             stp     x19, x20, [sp, #0xA0]
             stp     x21, x22, [sp, #0xB0]
             stp     x23, x24, [sp, #0xC0]
             mov     fp, sp
             add     x9, fp, #24
             movi    v16.16b, #0
             stp     q16, q16, [x9]
             stp     q16, q16, [x9, #0x20]
             stp     q16, q16, [x9, #0x40]
             stp     q16, q16, [x9, #0x60]
             add     x1, sp, #208
             str     x1, [fp, #0x98]	// [V157 PSPSym]
             str     x0, [fp, #0x10]	// [V00 this]
 						;; size=56 bbWeight=1 PerfScore 12.00
 G_M3290_IG02:
             ldr     w1, [x0, #0x18]
             ldr     x19, [x0]
 						;; size=8 bbWeight=1 PerfScore 6.00
 G_M3290_IG03:
             cbnz    w1, G_M3290_IG07
 						;; size=4 bbWeight=1 PerfScore 1.00
 G_M3290_IG04:
             ldp     x1, x2, [x0, #0x40]
             stp     x1, x2, [fp, #0x88]
 						;; size=8 bbWeight=1 PerfScore 5.00
 G_M3290_IG05:
             stp     xzr, xzr, [x0, #0x40]
             movn    w1, #0
             str     w1, [x0, #0x18]
 						;; size=12 bbWeight=1 PerfScore 2.50
 G_M3290_IG06:
             ldr     x20, [fp, #0x88]	// [V03 loc2]
             cbz     x20, G_M3290_IG17
             mov     x1, x20
             movz    x0, #0xD1FFAB1E
             movk    x0, #0xD1FFAB1E LSL #16
             movk    x0, #0xD1FFAB1E LSL #32
             movz    x2, #0xD1FFAB1E      // code for CORINFO_HELP_ISINSTANCEOFCLASS
             movk    x2, #0xD1FFAB1E LSL #16
             movk    x2, #0xD1FFAB1E LSL #32
             ldr     x2, [x2]
             blr     x2
             cbz     x0, G_M3290_IG16
             add     x1, x0, #52
             ldapr   w1, [x1]
             mov     w2, #0xD1FFAB1E
             and     w1, w1, w2
             mov     w2, #0xD1FFAB1E
             cmp     w1, w2
             beq     G_M3290_IG17
             mov     w1, wzr
             movz    x2, #0xD1FFAB1E      // code for System.Runtime.CompilerServices.TaskAwaiter:HandleNonSuccessAndDebuggerNotification(System.Threading.Tasks.Task,int)
             movk    x2, #0xD1FFAB1E LSL #16
             movk    x2, #0xD1FFAB1E LSL #32
             ldr     x2, [x2]
             blr     x2
             b       G_M3290_IG17
 						;; size=104 bbWeight=1 PerfScore 25.00
 G_M3290_IG07:
             add     x1, x0, #40
             ldr     x2, [x1]
             cbnz    x2, G_M3290_IG10
 						;; size=12 bbWeight=1 PerfScore 4.50
 G_M3290_IG08:
             ldr     x1, [x19, #0x68]
             cbz     x1, G_M3290_IG32
             mov     x0, x19
             movz    x1, #0xD1FFAB1E      // code for System.Formats.Tar.TarHeader:ValidateSize():this
             movk    x1, #0xD1FFAB1E LSL #16
             movk    x1, #0xD1FFAB1E LSL #32
             ldr     x1, [x1]
             blr     x1
             movz    x0, #0xD1FFAB1E
             movk    x0, #0xD1FFAB1E LSL #16
             movk    x0, #0xD1FFAB1E LSL #32
             ldr     w0, [x0]
             tbz     w0, #0, G_M3290_IG28
 						;; size=52 bbWeight=1 PerfScore 15.50
 G_M3290_IG09:
             movz    x0, #0xD1FFAB1E      // data for System.Buffers.ArrayPool`1[ubyte]:s_shared
+            movk    x0, #0xD1FFAB1E LSL #16
             movk    x0, #0xD1FFAB1E LSL #32
             ldr     x0, [x0]
             ldr     w1, [x19, #0x68]
             movz    x2, #0xD1FFAB1E      // code for System.Buffers.SharedArrayPool`1[ubyte]:Rent(int):ubyte[]:this
             movk    x2, #0xD1FFAB1E LSL #16
             movk    x2, #0xD1FFAB1E LSL #32
             ldr     x2, [x2]
             ldr     wzr, [x0]
             blr     x2
             ldr     x20, [fp, #0x10]	// [V00 this]
             add     x14, x20, #16
             mov     x15, x0
             bl      CORINFO_HELP_CHECKED_ASSIGN_REF
             ldr     x15, [x20, #0x10]
             ldr     w0, [x19, #0x68]
             cbnz    x15, G_M3290_IG11
             cbz     w0, G_M3290_IG12
             b       G_M3290_IG30
-						;; size=76 bbWeight=1 PerfScore 28.50
+						;; size=80 bbWeight=1 PerfScore 29.00
 G_M3290_IG10:
             add     x2, x2, #32
             ldapr   w2, [x2]
             cbz     w2, G_M3290_IG08
             b       G_M3290_IG31
 						;; size=16 bbWeight=1 PerfScore 5.50
 G_M3290_IG11:
             ldr     w14, [x15, #0x08]
             cmp     w14, w0
             blo     G_M3290_IG30
             b       G_M3290_IG13
 						;; size=16 bbWeight=1 PerfScore 5.50
 G_M3290_IG12:
             mov     x15, xzr
             mov     w0, wzr
 						;; size=8 bbWeight=1 PerfScore 1.00
 G_M3290_IG13:
             add     x14, x20, #48
             bl      CORINFO_HELP_CHECKED_ASSIGN_REF
             stp     wzr, w0, [x20, #0x38]
             ldr     x0, [x20, #0x08]
             ldr     x1, [x20, #0x30]
             ldp     w2, w3, [x20, #0x38]
             ldr     x4, [x20, #0x28]
             ldrsb   wzr, [x0]
             stp     xzr, xzr, [fp, #0x40]
             str     x0, [fp, #0x28]	// [V23 tmp16]
             str     x1, [fp, #0x50]	// [V23 tmp16+0x28]
             stp     w2, w3, [fp, #0x58]	// [V23 tmp16+0x30], [V23 tmp16+0x34]
             str     w3, [fp, #0x34]	// [V23 tmp16+0x0c]
             mov     w0, #1
             strb    w0, [fp, #0x3C]	// [V23 tmp16+0x14]
             str     x4, [fp, #0x60]	// [V23 tmp16+0x38]
             movn    w0, #0
             str     w0, [fp, #0x30]	// [V23 tmp16+0x08]
             add     x0, fp, #40	// [V23 tmp16]
             movz    x1, #0xD1FFAB1E      // code for System.Runtime.CompilerServices.AsyncMethodBuilderCore:Start[System.IO.Stream+<ReadAtLeastAsyncCore>d__46](byref)
             movk    x1, #0xD1FFAB1E LSL #16
             movk    x1, #0xD1FFAB1E LSL #32
             ldr     x1, [x1]
             blr     x1
             add     x0, fp, #64	// [V23 tmp16+0x18]
             movz    x1, #0xD1FFAB1E      // code for System.Runtime.CompilerServices.PoolingAsyncValueTaskMethodBuilder`1[int]:get_Task():System.Threading.Tasks.ValueTask`1[int]:this
             movk    x1, #0xD1FFAB1E LSL #16
             movk    x1, #0xD1FFAB1E LSL #32
             ldr     x1, [x1]
             blr     x1
             stp     x0, x1, [fp, #0x78]	// [V22 tmp15], [V22 tmp15+0x08]
             ldrsh   x1, [fp, #0x84]	// [V118 tmp111]
             ldr     x0, [fp, #0x78]	// [V116 tmp109]
             str     x0, [fp, #0x88]	// [V03 loc2]
             strh    w1, [fp, #0x90]	// [V03 loc2+0x08]
             strb    wzr, [fp, #0x92]	// [V03 loc2+0x0a]
             ldr     x21, [fp, #0x88]	// [V03 loc2]
             cbz     x21, G_M3290_IG06
             mov     x1, x21
             movz    x0, #0xD1FFAB1E
             movk    x0, #0xD1FFAB1E LSL #16
             movk    x0, #0xD1FFAB1E LSL #32
             movz    x2, #0xD1FFAB1E      // code for CORINFO_HELP_ISINSTANCEOFCLASS
             movk    x2, #0xD1FFAB1E LSL #16
             movk    x2, #0xD1FFAB1E LSL #32
             ldr     x2, [x2]
             blr     x2
             cbnz    x0, G_M3290_IG15
             mov     x0, x21
             ldrsh   w1, [fp, #0x90]	// [V03 loc2+0x08]
             movz    x11, #0xD1FFAB1E      // code for System.Threading.Tasks.Sources.IValueTaskSource:GetStatus(short):int:this
             movk    x11, #0xD1FFAB1E LSL #16
             movk    x11, #0xD1FFAB1E LSL #32
             ldr     xip0, [x11]
             blr     xip0
             cbnz    w0, G_M3290_IG06
 						;; size=224 bbWeight=1 PerfScore 67.00
 G_M3290_IG14:
             ldr     x20, [fp, #0x10]	// [V00 this]
             str     wzr, [x20, #0x18]
             add     x14, x20, #64
             add     x13, fp, #136	// [V03 loc2]
             bl      CORINFO_HELP_ASSIGN_BYREF
             ldr     x12, [x13], #0x08
             str     x12, [x14], #0x08
             add     x1, x20, #32
             mov     x0, x20
             movz    x2, #0xD1FFAB1E      // code for System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1[System.Threading.Tasks.VoidTaskResult]:GetStateMachineBox[System.Formats.Tar.TarHeader+<ReadGnuLongPathDataBlockAsync>d__68](byref,byref):System.Runtime.CompilerServices.IAsyncStateMachineBox
             movk    x2, #0xD1FFAB1E LSL #16
             movk    x2, #0xD1FFAB1E LSL #32
             ldr     x2, [x2]
             blr     x2
             mov     x1, x0
             add     x0, fp, #136	// [V03 loc2]
             movz    x2, #0xD1FFAB1E      // code for System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1[System.Threading.Tasks.VoidTaskResult]:AwaitUnsafeOnCompleted[System.Runtime.CompilerServices.ConfiguredValueTaskAwaitable+ConfiguredValueTaskAwaiter](byref,System.Runtime.CompilerServices.IAsyncStateMachineBox)
             movk    x2, #0xD1FFAB1E LSL #16
             movk    x2, #0xD1FFAB1E LSL #32
             ldr     x2, [x2]
             blr     x2
             b       G_M3290_IG45
 						;; size=88 bbWeight=1 PerfScore 23.00
 G_M3290_IG15:
             add     x14, x0, #52
             ldapr   w14, [x14]
             mov     w13, #0xD1FFAB1E
             tst     w14, w13
             bne     G_M3290_IG06
             b       G_M3290_IG14
 						;; size=24 bbWeight=1 PerfScore 6.50
 G_M3290_IG16:
             mov     x0, x20
             ldrsh   w1, [fp, #0x90]	// [V03 loc2+0x08]
             movz    x11, #0xD1FFAB1E      // code for System.Threading.Tasks.Sources.IValueTaskSource:GetResult(short):this
             movk    x11, #0xD1FFAB1E LSL #16
             movk    x11, #0xD1FFAB1E LSL #32
             ldr     xip0, [x11]
             blr     xip0
 						;; size=28 bbWeight=1 PerfScore 8.00
 G_M3290_IG17:
             ldr     x0, [fp, #0x10]	// [V00 this]
             add     x20, x0, #48
             mov     x21, xzr
             mov     w22, wzr
             ldr     x1, [x20]
             cbz     x1, G_M3290_IG20
             ldr     x2, [x1]
             ldr     w2, [x2]
             tst     w2, #0xD1FFAB1E
             bne     G_M3290_IG18
             mov     x0, x1
             ldr     x1, [x1]
             ldr     x1, [x1, #0x40]
             ldr     x1, [x1, #0x28]
             blr     x1
             mov     x21, x0
             mov     w22, w1
             b       G_M3290_IG19
 						;; size=72 bbWeight=1 PerfScore 27.50
 G_M3290_IG18:
             add     x21, x1, #16
             ldr     w22, [x1, #0x08]
 						;; size=8 bbWeight=1 PerfScore 3.50
 G_M3290_IG19:
             ldp     w1, w2, [x20, #0x08]
             and     w1, w1, #0xD1FFAB1E
             mov     w1, w1
             add     x3, x1, w2, UXTW
             mov     w4, w22
             cmp     x3, x4
             bhi     G_M3290_IG30
             add     x21, x21, x1
             sxtw    w22, w2
 						;; size=36 bbWeight=1 PerfScore 8.00
 G_M3290_IG20:
             movz    x1, #0xD1FFAB1E
+            movk    x1, #0xD1FFAB1E LSL #16
             movk    x1, #0xD1FFAB1E LSL #32
             ldr     x20, [x1]
             mov     x0, x21
             mov     w1, w22
             movz    x2, #0xD1FFAB1E      // code for System.Formats.Tar.TarHelpers:TrimEndingNullsAndSpaces(System.ReadOnlySpan`1[ubyte]):System.ReadOnlySpan`1[ubyte]
             movk    x2, #0xD1FFAB1E LSL #16
             movk    x2, #0xD1FFAB1E LSL #32
             ldr     x2, [x2]
             blr     x2
             mov     w21, w1
             cbnz    w21, G_M3290_IG21
             movz    x15, #0xD1FFAB1E
             movk    x15, #0xD1FFAB1E LSL #16
             movk    x15, #0xD1FFAB1E LSL #32
             b       G_M3290_IG24
-						;; size=64 bbWeight=1 PerfScore 14.50
+						;; size=68 bbWeight=1 PerfScore 15.00
 G_M3290_IG21:
             mov     x22, x0
             str     x22, [fp, #0x20]	// [V72 tmp65]
             mov     x0, x20
             mov     x1, x22
             mov     w2, w21
             movz    x3, #0xD1FFAB1E      // code for System.Text.UTF8Encoding:GetCharCount(ulong,int):int:this
             movk    x3, #0xD1FFAB1E LSL #16
             movk    x3, #0xD1FFAB1E LSL #32
             ldr     x3, [x3]
             blr     x3
             sxtw    w23, w0
             cbz     w23, G_M3290_IG22
             mov     w0, w23
             bl      System.String:FastAllocateString(int):System.String
             mov     x24, x0
             ldrsb   wzr, [x24]
             add     x3, x24, #12
             str     x3, [fp, #0x18]	// [V80 tmp73]
             ldr     x3, [fp, #0x18]	// [V80 tmp73]
             mov     x1, x22
             mov     w2, w21
             mov     x0, x20
             mov     w4, w23
             movz    x5, #0xD1FFAB1E      // code for System.Text.UTF8Encoding:GetChars(ulong,int,ulong,int):int:this
             movk    x5, #0xD1FFAB1E LSL #16
             movk    x5, #0xD1FFAB1E LSL #32
             ldr     x5, [x5]
             blr     x5
             str     xzr, [fp, #0x18]	// [V80 tmp73]
             mov     x15, x24
             b       G_M3290_IG23
 						;; size=124 bbWeight=1 PerfScore 28.50
 G_M3290_IG22:
             movz    x15, #0xD1FFAB1E
             movk    x15, #0xD1FFAB1E LSL #16
             movk    x15, #0xD1FFAB1E LSL #32
 						;; size=12 bbWeight=1 PerfScore 1.50
 G_M3290_IG23:
             stp     xzr, xzr, [fp, #0x18]	// [V80 tmp73], [V72 tmp65]
 						;; size=4 bbWeight=1 PerfScore 1.00
 G_M3290_IG24:
             ldrb    w14, [x19, #0x8C]
             cmp     w14, #75
             beq     G_M3290_IG25
             cmp     w14, #76
             bne     G_M3290_IG26
             add     x14, x19, #16
             bl      CORINFO_HELP_ASSIGN_REF
             b       G_M3290_IG26
 						;; size=32 bbWeight=1 PerfScore 8.50
 G_M3290_IG25:
             add     x14, x19, #24
             bl      CORINFO_HELP_ASSIGN_REF
 						;; size=8 bbWeight=1 PerfScore 1.50
 G_M3290_IG26:
             movz    x0, #0xD1FFAB1E
             movk    x0, #0xD1FFAB1E LSL #16
             movk    x0, #0xD1FFAB1E LSL #32
             ldr     w0, [x0]
             tbz     w0, #0, G_M3290_IG29
 						;; size=20 bbWeight=1 PerfScore 5.50
 G_M3290_IG27:
             movz    x0, #0xD1FFAB1E      // data for System.Buffers.ArrayPool`1[ubyte]:s_shared
+            movk    x0, #0xD1FFAB1E LSL #16
             movk    x0, #0xD1FFAB1E LSL #32
             ldr     x0, [x0]
             ldr     x20, [fp, #0x10]	// [V00 this]
             ldr     x1, [x20, #0x10]
             mov     w2, wzr
             movz    x3, #0xD1FFAB1E      // code for System.Buffers.SharedArrayPool`1[ubyte]:Return(ubyte[],ubyte):this
             movk    x3, #0xD1FFAB1E LSL #16
             movk    x3, #0xD1FFAB1E LSL #32
             ldr     x3, [x3]
             ldr     wzr, [x0]
             blr     x3
             str     xzr, [x20, #0x10]
             stp     xzr, xzr, [x20, #0x30]
             b       G_M3290_IG32
-						;; size=60 bbWeight=1 PerfScore 21.00
+						;; size=64 bbWeight=1 PerfScore 21.50
 G_M3290_IG28:
             movz    x0, #0xD1FFAB1E
             movk    x0, #0xD1FFAB1E LSL #16
             movk    x0, #0xD1FFAB1E LSL #32
             bl      CORINFO_HELP_GET_GCSTATIC_BASE
             b       G_M3290_IG09
-            align   [0 bytes for IG35]
+            align   [4 bytes for IG35]
+            align   [4 bytes]
             align   [0 bytes]
             align   [0 bytes]
-            align   [0 bytes]
-						;; size=20 bbWeight=0 PerfScore 0.00
+						;; size=28 bbWeight=0 PerfScore 0.00
 G_M3290_IG29:
             movz    x0, #0xD1FFAB1E
             movk    x0, #0xD1FFAB1E LSL #16
             movk    x0, #0xD1FFAB1E LSL #32
             bl      CORINFO_HELP_GET_GCSTATIC_BASE
             b       G_M3290_IG27
 						;; size=20 bbWeight=0 PerfScore 0.00
 G_M3290_IG30:
             ldr     x20, [fp, #0x10]	// [V00 this]
             movz    x0, #0xD1FFAB1E      // code for System.ThrowHelper:ThrowArgumentOutOfRangeException()
             movk    x0, #0xD1FFAB1E LSL #16
             movk    x0, #0xD1FFAB1E LSL #32
             ldr     x0, [x0]
             blr     x0
             brk_unix #0
 						;; size=28 bbWeight=0 PerfScore 0.00
 G_M3290_IG31:
             mov     x0, x1
             movz    x1, #0xD1FFAB1E      // code for System.Threading.CancellationToken:ThrowOperationCanceledException():this
             movk    x1, #0xD1FFAB1E LSL #16
             movk    x1, #0xD1FFAB1E LSL #32
             ldr     x1, [x1]
             blr     x1
             brk_unix #0
 						;; size=28 bbWeight=0 PerfScore 0.00
 G_M3290_IG32:
             movn    w1, #1
             ldr     x0, [fp, #0x10]	// [V00 this]
             str     w1, [x0, #0x18]
             add     x20, x0, #32
             ldr     x21, [x20]
             cbz     x21, G_M3290_IG43
             mov     w22, wzr
             movz    x0, #0xD1FFAB1E
             movk    x0, #0xD1FFAB1E LSL #16
             movk    x0, #0xD1FFAB1E LSL #32
             ldr     w0, [x0]
             tbz     w0, #0, G_M3290_IG46
 						;; size=48 bbWeight=1 PerfScore 14.00
 G_M3290_IG33:
             movz    x0, #0xD1FFAB1E      // data for System.Threading.Tasks.TplEventSource:Log
+            movk    x0, #0xD1FFAB1E LSL #16
             movk    x0, #0xD1FFAB1E LSL #32
             ldr     x20, [x0]
             ldrb    w0, [x20, #0x9D]
             cbz     w0, G_M3290_IG34
             mov     x0, x21
             movz    x1, #0xD1FFAB1E      // code for System.Threading.Tasks.Task:get_Id():int:this
             movk    x1, #0xD1FFAB1E LSL #16
             movk    x1, #0xD1FFAB1E LSL #32
             ldr     x1, [x1]
             ldr     wzr, [x0]
             blr     x1
             sxtw    w19, w0
             ldrb    w1, [x20, #0x9D]
             cbz     w1, G_M3290_IG34
             ldr     x3, [x20, #0x80]
             ldr     w2, [x20, #0x98]
             mov     x0, x20
             mov     w4, #4
             mov     x5, #8
             mov     w6, wzr
             movz    x7, #0xD1FFAB1E      // code for System.Diagnostics.Tracing.EventSource:IsEnabledCommon(ubyte,int,long,int,long,ubyte):ubyte:this
             movk    x7, #0xD1FFAB1E LSL #16
             movk    x7, #0xD1FFAB1E LSL #32
             ldr     x7, [x7]
             blr     x7
             cbz     w0, G_M3290_IG34
             mov     x0, x20
             mov     w2, w19
             mov     w1, #15
             mov     w3, #1
             movz    x4, #0xD1FFAB1E      // code for System.Diagnostics.Tracing.EventSource:WriteEvent(int,int,int):this
             movk    x4, #0xD1FFAB1E LSL #16
             movk    x4, #0xD1FFAB1E LSL #32
             ldr     x4, [x4]
             blr     x4
-						;; size=144 bbWeight=1 PerfScore 43.50
+						;; size=148 bbWeight=1 PerfScore 44.00
 G_M3290_IG34:
             add     x0, x21, #52
             ldapr   w1, [x0]
             mov     w2, #0xD1FFAB1E
             tst     w1, w2
             bne     G_M3290_IG47
             orr     w2, w1, #0xD1FFAB1E
             mov     w3, w1
             casal   w3, w2, [x0]
             cmp     w3, w1
             beq     G_M3290_IG41
             ldapr   w1, [x0]
             b       G_M3290_IG36
 						;; size=48 bbWeight=1 PerfScore 15.00
 G_M3290_IG35:
             sxtw    w1, w3
 						;; size=4 bbWeight=8 PerfScore 4.00
 G_M3290_IG36:
             mov     w2, #0xD1FFAB1E
             tst     w1, w2
             beq     G_M3290_IG38
 						;; size=12 bbWeight=8 PerfScore 16.00
 G_M3290_IG37:
             mov     w2, wzr
             b       G_M3290_IG40
 						;; size=8 bbWeight=1 PerfScore 1.50
 G_M3290_IG38:
             orr     w2, w1, #0xD1FFAB1E
             mov     w3, w1
             casal   w3, w2, [x0]
             cmp     w3, w1
             bne     G_M3290_IG35
 						;; size=20 bbWeight=8 PerfScore 44.00
 G_M3290_IG39:
             mov     w2, #1
 						;; size=4 bbWeight=1 PerfScore 0.50
 G_M3290_IG40:
             cbz     w2, G_M3290_IG47
 						;; size=4 bbWeight=1 PerfScore 1.00
 G_M3290_IG41:
             strb    w22, [x21, #0x38]
             ldapr   w1, [x0]
             orr     w1, w1, #0xD1FFAB1E
             swpal   w1, w0, [x0]
             ldr     x22, [x21, #0x28]
             cbz     x22, G_M3290_IG42
             mov     x0, x21
             movz    x1, #0xD1FFAB1E      // code for System.Threading.Tasks.Task:NotifyParentIfPotentiallyAttachedTask():this
             movk    x1, #0xD1FFAB1E LSL #16
             movk    x1, #0xD1FFAB1E LSL #32
             ldr     x1, [x1]
             blr     x1
             add     x0, x22, #16
             ldapr   x0, [x0]
             cbz     x0, G_M3290_IG42
             movz    x1, #0xD1FFAB1E      // code for System.Threading.Tasks.Task+ContingentProperties:SetEvent(System.Threading.ManualResetEventSlim)
             movk    x1, #0xD1FFAB1E LSL #16
             movk    x1, #0xD1FFAB1E LSL #32
             ldr     x1, [x1]
             blr     x1
 						;; size=80 bbWeight=1 PerfScore 27.50
 G_M3290_IG42:
             mov     x0, x21
             movz    x1, #0xD1FFAB1E      // code for System.Threading.Tasks.Task:FinishContinuations():this
             movk    x1, #0xD1FFAB1E LSL #16
             movk    x1, #0xD1FFAB1E LSL #32
             ldr     x1, [x1]
             blr     x1
             b       G_M3290_IG45
 						;; size=28 bbWeight=1 PerfScore 7.00
 G_M3290_IG43:
             movz    x14, #0xD1FFAB1E
             movk    x14, #0xD1FFAB1E LSL #16
             movk    x14, #0xD1FFAB1E LSL #32
             ldr     w14, [x14]
             tbz     w14, #0, G_M3290_IG48
 						;; size=20 bbWeight=1 PerfScore 5.50
 G_M3290_IG44:
             movz    x14, #0xD1FFAB1E      // data for System.Runtime.CompilerServices.AsyncValueTaskMethodBuilder:s_syncSuccessSentinel
+            movk    x14, #0xD1FFAB1E LSL #16
             movk    x14, #0xD1FFAB1E LSL #32
             ldr     x15, [x14]
             mov     x14, x20
             bl      CORINFO_HELP_CHECKED_ASSIGN_REF
-						;; size=20 bbWeight=1 PerfScore 5.50
+						;; size=24 bbWeight=1 PerfScore 6.00
 G_M3290_IG45:
             ldp     x23, x24, [sp, #0xC0]
             ldp     x21, x22, [sp, #0xB0]
             ldp     x19, x20, [sp, #0xA0]
             ldp     fp, lr, [sp], #0xD0
             ret     lr
 						;; size=20 bbWeight=1 PerfScore 5.00
 G_M3290_IG46:
             movz    x0, #0xD1FFAB1E
             movk    x0, #0xD1FFAB1E LSL #16
             movk    x0, #0xD1FFAB1E LSL #32
             bl      CORINFO_HELP_GET_GCSTATIC_BASE
             b       G_M3290_IG33
 						;; size=20 bbWeight=0 PerfScore 0.00
 G_M3290_IG47:
             mov     w0, #24
             movz    x1, #0xD1FFAB1E      // code for System.ThrowHelper:ThrowInvalidOperationException(int)
             movk    x1, #0xD1FFAB1E LSL #16
             movk    x1, #0xD1FFAB1E LSL #32
             ldr     x1, [x1]
             blr     x1
             brk_unix #0
 						;; size=28 bbWeight=0 PerfScore 0.00
 G_M3290_IG48:
             movz    x0, #0xD1FFAB1E
             movk    x0, #0xD1FFAB1E LSL #16
             movk    x0, #0xD1FFAB1E LSL #32
             bl      CORINFO_HELP_GET_GCSTATIC_BASE
             b       G_M3290_IG44
 						;; size=20 bbWeight=0 PerfScore 0.00
 G_M3290_IG49:
             stp     fp, lr, [sp, #-0x50]!
             stp     x19, x20, [sp, #0x20]
             stp     x21, x22, [sp, #0x30]
             stp     x23, x24, [sp, #0x40]
             add     x3, fp, #208
             str     x3, [sp, #0x18]
 						;; size=24 bbWeight=0 PerfScore 0.00
 G_M3290_IG50:
             mov     x1, x0
             movn    w0, #1
             ldr     x20, [fp, #0x10]	// [V00 this]
             str     w0, [x20, #0x18]
             add     x0, x20, #32
             movz    x2, #0xD1FFAB1E      // code for System.Runtime.CompilerServices.AsyncValueTaskMethodBuilder:SetException(System.Exception):this
             movk    x2, #0xD1FFAB1E LSL #16
             movk    x2, #0xD1FFAB1E LSL #32
             ldr     x2, [x2]
             blr     x2
             adr     x0, [G_M3290_IG45]
 						;; size=44 bbWeight=0 PerfScore 0.00
 G_M3290_IG51:
             ldp     x23, x24, [sp, #0x40]
             ldp     x21, x22, [sp, #0x30]
             ldp     x19, x20, [sp, #0x20]
             ldp     fp, lr, [sp], #0x50
             ret     lr
 						;; size=20 bbWeight=0 PerfScore 0.00
 
-; Total bytes of code 1888, prolog size 56, PerfScore 527.50, instruction count 476, allocated bytes for code 1888 (MethodHash=94e5f325) for method System.Formats.Tar.TarHeader+<ReadGnuLongPathDataBlockAsync>d__68:MoveNext():this (FullOpts)
+; Total bytes of code 1916, prolog size 56, PerfScore 530.00, instruction count 481, allocated bytes for code 1916 (MethodHash=94e5f325) for method System.Formats.Tar.TarHeader+<ReadGnuLongPathDataBlockAsync>d__68:MoveNext():this (FullOpts)

Larger list of diffs: https://gist.github.com/MihuBot/0060c70304c1c052d2795ecf5a6c4bb3

[MihuBot]

Top method improvements

-36 (-3.81 % of base) - Microsoft.VisualBasic.CompilerServices.VB6RandomFile:OpenFile():this

 ; Assembly listing for method Microsoft.VisualBasic.CompilerServices.VB6RandomFile:OpenFile():this (FullOpts)
 ; Emitting BLENDED_CODE for generic ARM64 - Unix
 ; FullOpts code
 ; optimized code
 ; fp based frame
 ; fully interruptible
 ; No PGO data
 ; 0 inlinees with PGO data; 6 single block inlinees; 0 inlinees without PGO data
 ; Final local variable assignments
 ;
-;  V00 this         [V00,T00] ( 30, 24   )     ref  ->  [fp+0x10]  this class-hnd EH-live single-def <Microsoft.VisualBasic.CompilerServices.VB6RandomFile>
-;  V01 loc0         [V01,T08] (  6,  4   )     int  ->  [fp+0x1C]  do-not-enreg[M] EH-live
+;  V00 this         [V00,T00] ( 30, 24   )     ref  ->  [fp+0x18]  this class-hnd EH-live single-def <Microsoft.VisualBasic.CompilerServices.VB6RandomFile>
+;  V01 loc0         [V01,T08] (  6,  4   )     int  ->  [fp+0x24]  do-not-enreg[M] EH-live
 ;  V02 loc1         [V02,T06] (  5,  5   )     ref  ->  x19         class-hnd single-def <System.IO.FileStream>
 ;* V03 loc2         [V03    ] (  0,  0   )     ref  ->  zero-ref    class-hnd exact <System.StackOverflowException>
 ;* V04 loc3         [V04    ] (  0,  0   )     ref  ->  zero-ref    class-hnd <System.OutOfMemoryException>
 ;* V05 loc4         [V05    ] (  0,  0   )     ref  ->  zero-ref    class-hnd exact <System.StackOverflowException>
 ;* V06 loc5         [V06    ] (  0,  0   )     ref  ->  zero-ref    class-hnd <System.OutOfMemoryException>
 ;# V07 OutArgs      [V07    ] (  1,  1   )  struct ( 0) [sp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace"
 ;  V08 tmp1         [V08,T01] (  3,  6   )     ref  ->  x20         class-hnd exact single-def "NewObj constructor temp" <System.IO.StreamWriter>
 ;  V09 tmp2         [V09,T02] (  3,  6   )     ref  ->  x20         class-hnd exact single-def "NewObj constructor temp" <System.IO.BinaryWriter>
-;  V10 tmp3         [V10,T03] (  3,  6   )     ref  ->  x21         class-hnd exact single-def "NewObj constructor temp" <System.IO.BinaryReader>
+;  V10 tmp3         [V10,T03] (  3,  6   )     ref  ->  x20         class-hnd exact single-def "NewObj constructor temp" <System.IO.BinaryReader>
 ;  V11 tmp4         [V11,T04] (  3,  6   )     ref  ->  x20         class-hnd exact single-def "NewObj constructor temp" <System.IO.StreamReader>
 ;* V12 tmp5         [V12    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "impSpillSpecialSideEff" <System.Exception>
 ;* V13 tmp6         [V13    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "impSpillSpecialSideEff" <System.Exception>
-;  V14 tmp7         [V14,T13] (  2,  0   )     ref  ->   x0         class-hnd single-def "impSpillSpecialSideEff" <System.OutOfMemoryException>
-;  V15 tmp8         [V15,T14] (  2,  0   )     ref  ->   x0         class-hnd single-def "impSpillSpecialSideEff" <System.StackOverflowException>
-;  V16 tmp9         [V16,T15] (  2,  0   )     ref  ->   x0         class-hnd single-def "impSpillSpecialSideEff" <System.OutOfMemoryException>
-;  V17 tmp10        [V17,T16] (  2,  0   )     ref  ->   x0         class-hnd single-def "impSpillSpecialSideEff" <System.StackOverflowException>
+;  V14 tmp7         [V14,T12] (  2,  0   )     ref  ->   x0         class-hnd single-def "impSpillSpecialSideEff" <System.OutOfMemoryException>
+;  V15 tmp8         [V15,T13] (  2,  0   )     ref  ->   x0         class-hnd single-def "impSpillSpecialSideEff" <System.StackOverflowException>
+;  V16 tmp9         [V16,T14] (  2,  0   )     ref  ->   x0         class-hnd single-def "impSpillSpecialSideEff" <System.OutOfMemoryException>
+;  V17 tmp10        [V17,T15] (  2,  0   )     ref  ->   x0         class-hnd single-def "impSpillSpecialSideEff" <System.StackOverflowException>
 ;* V18 tmp11        [V18    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "Inlining Arg" <System.Text.Encoding>
 ;* V19 tmp12        [V19    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "Inlining Arg" <System.Text.Encoding>
 ;* V20 tmp13        [V20    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "Inlining Arg" <System.Text.Encoding>
 ;* V21 tmp14        [V21    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "Inlining Arg" <System.Text.Encoding>
 ;  V22 tmp15        [V22,T05] (  3,  6   )     ref  ->   x2         single-def "argument with side effect"
-;  V23 PSPSym       [V23,T12] (  1,  1   )    long  ->  [fp+0x20]  do-not-enreg[V] "PSPSym"
+;  V23 PSPSym       [V23,T11] (  1,  1   )    long  ->  [fp+0x28]  do-not-enreg[V] "PSPSym"
 ;  V24 cse0         [V24,T09] (  3,  3   )     int  ->   x1         "CSE #02: aggressive"
 ;  V25 cse1         [V25,T10] (  3,  3   )     int  ->   x1         "CSE #04: aggressive"
 ;  V26 cse2         [V26,T07] (  5,  5   )     int  ->   x2         multi-def "CSE #01: aggressive"
-;  V27 cse3         [V27,T11] (  3,  3   )    long  ->  x20         "CSE #05: aggressive"
 ;
-; Lcl frame size = 24
+; Lcl frame size = 32
 
 G_M12809_IG01:
             stp     fp, lr, [sp, #-0x40]!
-            stp     x19, x20, [sp, #0x28]
-            str     x21, [sp, #0x38]
+            stp     x19, x20, [sp, #0x30]
             mov     fp, sp
             add     x1, sp, #64
-            str     x1, [fp, #0x20]	// [V23 PSPSym]
-            str     x0, [fp, #0x10]	// [V00 this]
-						;; size=28 bbWeight=1 PerfScore 6.00
+            str     x1, [fp, #0x28]	// [V23 PSPSym]
+            str     x0, [fp, #0x18]	// [V00 this]
+						;; size=24 bbWeight=1 PerfScore 5.00
 G_M12809_IG02:
             ldr     x0, [x0, #0x08]
             movz    x1, #0xD1FFAB1E      // code for System.IO.File:Exists(System.String):ubyte
             movk    x1, #0xD1FFAB1E LSL #16
             movk    x1, #0xD1FFAB1E LSL #32
             ldr     x1, [x1]
             blr     x1
             cbnz    w0, G_M12809_IG03
-            ldr     x0, [fp, #0x10]	// [V00 this]
+            ldr     x0, [fp, #0x18]	// [V00 this]
             ldr     w2, [x0, #0x60]
             mov     w1, #2
             mov     w3, #4
             cmp     w2, #1
             csel    w2, w1, w3, ne
-            str     w2, [fp, #0x1C]	// [V01 loc0]
+            str     w2, [fp, #0x24]	// [V01 loc0]
             b       G_M12809_IG04
 						;; size=60 bbWeight=1 PerfScore 18.50
 G_M12809_IG03:
             mov     w2, #3
-            str     w2, [fp, #0x1C]	// [V01 loc0]
-            ldr     x0, [fp, #0x10]	// [V00 this]
+            str     w2, [fp, #0x24]	// [V01 loc0]
+            ldr     x0, [fp, #0x18]	// [V00 this]
 						;; size=12 bbWeight=1 PerfScore 3.50
 G_M12809_IG04:
             ldr     w2, [x0, #0x60]
             cmn     w2, #1
             beq     G_M12809_IG05
-            ldr     w1, [fp, #0x1C]	// [V01 loc0]
+            ldr     w1, [fp, #0x24]	// [V01 loc0]
             movz    x3, #0xD1FFAB1E      // code for Microsoft.VisualBasic.CompilerServices.VB6RandomFile:OpenFileHelper(int,int):this
             movk    x3, #0xD1FFAB1E LSL #16
             movk    x3, #0xD1FFAB1E LSL #32
             ldr     x3, [x3]
             blr     x3
             b       G_M12809_IG07
 						;; size=40 bbWeight=1 PerfScore 13.00
 G_M12809_IG05:
             mov     w2, #3
             str     w2, [x0, #0x60]
 						;; size=8 bbWeight=1 PerfScore 1.50
 G_M12809_IG06:
             ldr     w2, [x0, #0x60]
-            ldr     w1, [fp, #0x1C]	// [V01 loc0]
+            ldr     w1, [fp, #0x24]	// [V01 loc0]
             movz    x3, #0xD1FFAB1E      // code for Microsoft.VisualBasic.CompilerServices.VB6RandomFile:OpenFileHelper(int,int):this
             movk    x3, #0xD1FFAB1E LSL #16
             movk    x3, #0xD1FFAB1E LSL #32
             ldr     x3, [x3]
             blr     x3
 						;; size=28 bbWeight=1 PerfScore 10.50
 G_M12809_IG07:
             movz    x14, #0xD1FFAB1E
             movk    x14, #0xD1FFAB1E LSL #16
             movk    x14, #0xD1FFAB1E LSL #32
             ldr     w14, [x14]
             tbz     w14, #0, G_M12809_IG13
 						;; size=20 bbWeight=1 PerfScore 5.50
 G_M12809_IG08:
             movz    x14, #0xD1FFAB1E      // data for System.Text.Encoding:s_defaultEncoding
             movk    x14, #0xD1FFAB1E LSL #16
             movk    x14, #0xD1FFAB1E LSL #32
             ldr     x15, [x14]
-            ldr     x0, [fp, #0x10]	// [V00 this]
+            ldr     x0, [fp, #0x18]	// [V00 this]
             add     x14, x0, #56
             bl      CORINFO_HELP_ASSIGN_REF
             ldr     x19, [x0, #0x10]
             ldr     w1, [x0, #0x60]
             cmp     w1, #2
             beq     G_M12809_IG09
             cmp     w1, #3
             bne     G_M12809_IG10
 						;; size=52 bbWeight=1 PerfScore 17.00
 G_M12809_IG09:
             movz    x0, #0xD1FFAB1E
             movk    x0, #0xD1FFAB1E LSL #16
             movk    x0, #0xD1FFAB1E LSL #32
             bl      CORINFO_HELP_NEWSFAST
             mov     x20, x0
-            ldr     x0, [fp, #0x10]	// [V00 this]
+            ldr     x0, [fp, #0x18]	// [V00 this]
             ldr     x2, [x0, #0x38]
             mov     x0, x20
             mov     x1, x19
             mov     w3, #0xD1FFAB1E
             mov     w4, wzr
             movz    x5, #0xD1FFAB1E      // code for System.IO.StreamWriter:.ctor(System.IO.Stream,System.Text.Encoding,int,ubyte):this
             movk    x5, #0xD1FFAB1E LSL #16
             movk    x5, #0xD1FFAB1E LSL #32
             ldr     x5, [x5]
             blr     x5
-            ldr     x0, [fp, #0x10]	// [V00 this]
+            ldr     x0, [fp, #0x18]	// [V00 this]
             add     x14, x0, #24
             mov     x15, x20
             bl      CORINFO_HELP_ASSIGN_REF
             ldr     x2, [x0, #0x18]
             mov     x0, x2
             mov     w1, #1
             ldr     x2, [x2]
             ldr     x2, [x2, #0x80]
             ldr     x2, [x2, #0x28]
             blr     x2
             movz    x0, #0xD1FFAB1E
             movk    x0, #0xD1FFAB1E LSL #16
             movk    x0, #0xD1FFAB1E LSL #32
             bl      CORINFO_HELP_NEWSFAST
             mov     x20, x0
-            ldr     x0, [fp, #0x10]	// [V00 this]
+            ldr     x0, [fp, #0x18]	// [V00 this]
             ldr     x2, [x0, #0x38]
             mov     x0, x20
             mov     x1, x19
             mov     w3, wzr
             movz    x4, #0xD1FFAB1E      // code for System.IO.BinaryWriter:.ctor(System.IO.Stream,System.Text.Encoding,ubyte):this
             movk    x4, #0xD1FFAB1E LSL #16
             movk    x4, #0xD1FFAB1E LSL #32
             ldr     x4, [x4]
             blr     x4
-            ldr     x0, [fp, #0x10]	// [V00 this]
+            ldr     x0, [fp, #0x18]	// [V00 this]
             add     x14, x0, #40
             mov     x15, x20
             bl      CORINFO_HELP_ASSIGN_REF
 						;; size=184 bbWeight=1 PerfScore 52.50
 G_M12809_IG10:
-            ldr     x0, [fp, #0x10]	// [V00 this]
+            ldr     x0, [fp, #0x18]	// [V00 this]
             ldr     w1, [x0, #0x60]
             cmp     w1, #1
             beq     G_M12809_IG11
             cmp     w1, #3
             bne     G_M12809_IG12
 						;; size=24 bbWeight=1 PerfScore 8.00
 G_M12809_IG11:
-            movz    x20, #0xD1FFAB1E
-            movk    x20, #0xD1FFAB1E LSL #16
-            movk    x20, #0xD1FFAB1E LSL #32
-            add     x0, x20, #0xD1FFAB1E
+            movz    x0, #0xD1FFAB1E
+            movk    x0, #0xD1FFAB1E LSL #16
+            movk    x0, #0xD1FFAB1E LSL #32
             bl      CORINFO_HELP_NEWSFAST
-            mov     x21, x0
-            ldr     x0, [fp, #0x10]	// [V00 this]
+            mov     x20, x0
+            ldr     x0, [fp, #0x18]	// [V00 this]
             ldr     x2, [x0, #0x38]
-            mov     x0, x21
+            mov     x0, x20
             mov     x1, x19
             mov     w3, wzr
             movz    x4, #0xD1FFAB1E      // code for System.IO.BinaryReader:.ctor(System.IO.Stream,System.Text.Encoding,ubyte):this
             movk    x4, #0xD1FFAB1E LSL #16
             movk    x4, #0xD1FFAB1E LSL #32
             ldr     x4, [x4]
             blr     x4
-            ldr     x0, [fp, #0x10]	// [V00 this]
+            ldr     x0, [fp, #0x18]	// [V00 this]
             add     x14, x0, #48
-            mov     x15, x21
+            mov     x15, x20
             bl      CORINFO_HELP_ASSIGN_REF
             ldr     x1, [x0]
             ldr     x1, [x1, #0x50]
             ldr     x1, [x1, #0x28]
             blr     x1
             cmp     w0, #32
             bne     G_M12809_IG12
-            mov     x0, x20
+            movz    x0, #0xD1FFAB1E
+            movk    x0, #0xD1FFAB1E LSL #16
+            movk    x0, #0xD1FFAB1E LSL #32
             bl      CORINFO_HELP_NEWSFAST
             mov     x20, x0
-            ldr     x0, [fp, #0x10]	// [V00 this]
+            ldr     x0, [fp, #0x18]	// [V00 this]
             ldr     x2, [x0, #0x38]
             mov     x0, x20
             mov     x1, x19
             mov     w3, wzr
             mov     w4, #128
             mov     w5, wzr
             movz    x6, #0xD1FFAB1E      // code for System.IO.StreamReader:.ctor(System.IO.Stream,System.Text.Encoding,ubyte,int,ubyte):this
             movk    x6, #0xD1FFAB1E LSL #16
             movk    x6, #0xD1FFAB1E LSL #32
             ldr     x6, [x6]
             blr     x6
-            ldr     x0, [fp, #0x10]	// [V00 this]
+            ldr     x0, [fp, #0x18]	// [V00 this]
             add     x14, x0, #32
             mov     x15, x20
             bl      CORINFO_HELP_ASSIGN_REF
-						;; size=180 bbWeight=1 PerfScore 50.00
+						;; size=184 bbWeight=1 PerfScore 50.50
 G_M12809_IG12:
-            ldr     x21, [sp, #0x38]
-            ldp     x19, x20, [sp, #0x28]
+            ldp     x19, x20, [sp, #0x30]
             ldp     fp, lr, [sp], #0x40
             ret     lr
-						;; size=16 bbWeight=1 PerfScore 5.00
+						;; size=12 bbWeight=1 PerfScore 3.00
 G_M12809_IG13:
             movz    x0, #0xD1FFAB1E
             movk    x0, #0xD1FFAB1E LSL #16
             movk    x0, #0xD1FFAB1E LSL #32
             bl      CORINFO_HELP_GET_GCSTATIC_BASE
             b       G_M12809_IG08
 						;; size=20 bbWeight=0 PerfScore 0.00
 G_M12809_IG14:
             stp     fp, lr, [sp, #-0x30]!
-            stp     x19, x20, [sp, #0x18]
-            str     x21, [sp, #0x28]
+            stp     x19, x20, [sp, #0x20]
             add     x3, fp, #64
-            str     x3, [sp, #0x10]
-						;; size=20 bbWeight=0 PerfScore 0.00
+            str     x3, [sp, #0x18]
+						;; size=16 bbWeight=0 PerfScore 0.00
 G_M12809_IG15:
             bl      CORINFO_HELP_THROW
             brk_unix #0
 						;; size=8 bbWeight=0 PerfScore 0.00
 G_M12809_IG16:
             stp     fp, lr, [sp, #-0x30]!
-            stp     x19, x20, [sp, #0x18]
-            str     x21, [sp, #0x28]
+            stp     x19, x20, [sp, #0x20]
             add     x3, fp, #64
-            str     x3, [sp, #0x10]
-						;; size=20 bbWeight=0 PerfScore 0.00
+            str     x3, [sp, #0x18]
+						;; size=16 bbWeight=0 PerfScore 0.00
 G_M12809_IG17:
             bl      CORINFO_HELP_THROW
             brk_unix #0
 						;; size=8 bbWeight=0 PerfScore 0.00
 G_M12809_IG18:
             stp     fp, lr, [sp, #-0x30]!
-            stp     x19, x20, [sp, #0x18]
-            str     x21, [sp, #0x28]
+            stp     x19, x20, [sp, #0x20]
             add     x3, fp, #64
-            str     x3, [sp, #0x10]
-						;; size=20 bbWeight=0 PerfScore 0.00
+            str     x3, [sp, #0x18]
+						;; size=16 bbWeight=0 PerfScore 0.00
 G_M12809_IG19:
             bl      CORINFO_HELP_THROW
             brk_unix #0
 						;; size=8 bbWeight=0 PerfScore 0.00
 G_M12809_IG20:
             stp     fp, lr, [sp, #-0x30]!
-            stp     x19, x20, [sp, #0x18]
-            str     x21, [sp, #0x28]
+            stp     x19, x20, [sp, #0x20]
             add     x3, fp, #64
-            str     x3, [sp, #0x10]
-						;; size=20 bbWeight=0 PerfScore 0.00
+            str     x3, [sp, #0x18]
+						;; size=16 bbWeight=0 PerfScore 0.00
 G_M12809_IG21:
             bl      CORINFO_HELP_THROW
             brk_unix #0
 						;; size=8 bbWeight=0 PerfScore 0.00
 G_M12809_IG22:
             stp     fp, lr, [sp, #-0x30]!
-            stp     x19, x20, [sp, #0x18]
-            str     x21, [sp, #0x28]
+            stp     x19, x20, [sp, #0x20]
             add     x3, fp, #64
-            str     x3, [sp, #0x10]
-						;; size=20 bbWeight=0 PerfScore 0.00
+            str     x3, [sp, #0x18]
+						;; size=16 bbWeight=0 PerfScore 0.00
 G_M12809_IG23:
             mov     w2, #1
-            ldr     x0, [fp, #0x10]	// [V00 this]
+            ldr     x0, [fp, #0x18]	// [V00 this]
             str     w2, [x0, #0x60]
             ldr     w2, [x0, #0x60]
-            ldr     w1, [fp, #0x1C]	// [V01 loc0]
+            ldr     w1, [fp, #0x24]	// [V01 loc0]
             movz    x3, #0xD1FFAB1E      // code for Microsoft.VisualBasic.CompilerServices.VB6RandomFile:OpenFileHelper(int,int):this
             movk    x3, #0xD1FFAB1E LSL #16
             movk    x3, #0xD1FFAB1E LSL #32
             ldr     x3, [x3]
             blr     x3
             adr     x0, [G_M12809_IG28]
 						;; size=44 bbWeight=0 PerfScore 0.00
 G_M12809_IG24:
-            ldr     x21, [sp, #0x28]
-            ldp     x19, x20, [sp, #0x18]
+            ldp     x19, x20, [sp, #0x20]
             ldp     fp, lr, [sp], #0x30
             ret     lr
-						;; size=16 bbWeight=0 PerfScore 0.00
+						;; size=12 bbWeight=0 PerfScore 0.00
 G_M12809_IG25:
             stp     fp, lr, [sp, #-0x30]!
-            stp     x19, x20, [sp, #0x18]
-            str     x21, [sp, #0x28]
+            stp     x19, x20, [sp, #0x20]
             add     x3, fp, #64
-            str     x3, [sp, #0x10]
-						;; size=20 bbWeight=0 PerfScore 0.00
+            str     x3, [sp, #0x18]
+						;; size=16 bbWeight=0 PerfScore 0.00
 G_M12809_IG26:
             mov     w2, #2
-            ldr     x0, [fp, #0x10]	// [V00 this]
+            ldr     x0, [fp, #0x18]	// [V00 this]
             str     w2, [x0, #0x60]
 						;; size=12 bbWeight=0 PerfScore 0.00
 G_M12809_IG27:
             ldr     w2, [x0, #0x60]
-            ldr     w1, [fp, #0x1C]	// [V01 loc0]
+            ldr     w1, [fp, #0x24]	// [V01 loc0]
             movz    x3, #0xD1FFAB1E      // code for Microsoft.VisualBasic.CompilerServices.VB6RandomFile:OpenFileHelper(int,int):this
             movk    x3, #0xD1FFAB1E LSL #16
             movk    x3, #0xD1FFAB1E LSL #32
             ldr     x3, [x3]
             blr     x3
 						;; size=28 bbWeight=0 PerfScore 0.00
 G_M12809_IG28:
             adr     x0, [G_M12809_IG07]
 						;; size=4 bbWeight=0 PerfScore 0.00
 G_M12809_IG29:
-            ldr     x21, [sp, #0x28]
-            ldp     x19, x20, [sp, #0x18]
+            ldp     x19, x20, [sp, #0x20]
             ldp     fp, lr, [sp], #0x30
             ret     lr
-						;; size=16 bbWeight=0 PerfScore 0.00
+						;; size=12 bbWeight=0 PerfScore 0.00
 
-; Total bytes of code 944, prolog size 28, PerfScore 191.00, instruction count 236, allocated bytes for code 944 (MethodHash=6330cdf6) for method Microsoft.VisualBasic.CompilerServices.VB6RandomFile:OpenFile():this (FullOpts)
+; Total bytes of code 908, prolog size 24, PerfScore 188.50, instruction count 227, allocated bytes for code 908 (MethodHash=6330cdf6) for method Microsoft.VisualBasic.CompilerServices.VB6RandomFile:OpenFile():this (FullOpts)

-32 (-10.13 % of base) - System.Runtime.InteropServices.SafeBuffer:Read[int](ulong):int:this

 ; Assembly listing for method System.Runtime.InteropServices.SafeBuffer:Read[int](ulong):int:this (FullOpts)
 ; Emitting BLENDED_CODE for generic ARM64 - Unix
 ; FullOpts code
 ; optimized code
 ; fp based frame
 ; fully interruptible
 ; No PGO data
 ; 0 inlinees with PGO data; 3 single block inlinees; 0 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 this         [V00,T00] (  8,  6.50)     ref  ->  [fp+0x10]  this class-hnd EH-live single-def <System.Runtime.InteropServices.SafeBuffer>
 ;  V01 arg1         [V01,T01] (  3,  3   )    long  ->  x19         single-def
-;  V02 loc0         [V02,T02] (  3,  3   )     int  ->  x20        
-;  V03 loc1         [V03,T03] (  3,  3   )    long  ->  x19        
-;  V04 loc2         [V04    ] (  3,  3   )     int  ->  [fp+0x20]  do-not-enreg[X] addr-exposed ld-addr-op
-;  V05 loc3         [V05    ] (  4,  3   )   ubyte  ->  [fp+0x18]  do-not-enreg[X] addr-exposed ld-addr-op
+;  V02 loc0         [V02,T03] (  2,  2   )     int  ->   x0        
+;  V03 loc1         [V03,T02] (  3,  3   )    long  ->  x19        
+;  V04 loc2         [V04    ] (  4,  3   )   ubyte  ->  [fp+0x18]  do-not-enreg[X] addr-exposed ld-addr-op
+;  V05 loc3         [V05,T04] (  2,  2   )     int  ->  x19        
 ;# V06 OutArgs      [V06    ] (  1,  1   )  struct ( 0) [sp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace"
 ;* V07 tmp1         [V07    ] (  0,  0   )    long  ->  zero-ref    "impAppendStmt"
-;  V08 PSPSym       [V08,T04] (  1,  1   )    long  ->  [fp+0x28]  do-not-enreg[V] "PSPSym"
+;  V08 PSPSym       [V08,T05] (  1,  1   )    long  ->  [fp+0x20]  do-not-enreg[V] "PSPSym"
 ;
-; Lcl frame size = 32
+; Lcl frame size = 24
 
 G_M1215_IG01:
-            stp     fp, lr, [sp, #-0x40]!
-            stp     x19, x20, [sp, #0x30]
+            stp     fp, lr, [sp, #-0x30]!
+            str     x19, [sp, #0x28]
             mov     fp, sp
-            add     x2, sp, #64
-            str     x2, [fp, #0x28]	// [V08 PSPSym]
+            add     x2, sp, #48
+            str     x2, [fp, #0x20]	// [V08 PSPSym]
             str     x0, [fp, #0x10]	// [V00 this]
             mov     x19, x1
 						;; size=28 bbWeight=1 PerfScore 5.50
 G_M1215_IG02:
             ldr     x1, [x0, #0x18]
             cmn     x1, #1
             beq     G_M1215_IG08
             movz    x1, #0xD1FFAB1E      // code for System.Runtime.InteropServices.SafeBuffer:SizeOf[int]():uint
             movk    x1, #0xD1FFAB1E LSL #16
             movk    x1, #0xD1FFAB1E LSL #32
             ldr     x1, [x1]
             blr     x1
-            sxtw    w20, w0
-            ldr     x0, [fp, #0x10]	// [V00 this]
-            ldr     x2, [x0, #0x08]
+            ldr     x3, [fp, #0x10]	// [V00 this]
+            ldr     x2, [x3, #0x08]
             add     x19, x2, x19
-            mov     w2, w20
+            mov     w2, w0
+            mov     x0, x3
             mov     x1, x19
-            movz    x3, #0xD1FFAB1E      // code for System.Runtime.InteropServices.SafeBuffer:SpaceCheck(ulong,ulong):this
-            movk    x3, #0xD1FFAB1E LSL #16
-            movk    x3, #0xD1FFAB1E LSL #32
-            ldr     x3, [x3]
-            blr     x3
-            str     wzr, [fp, #0x20]	// [V04 loc2]
-            str     wzr, [fp, #0x18]	// [V05 loc3]
-						;; size=84 bbWeight=1 PerfScore 24.50
+            movz    x4, #0xD1FFAB1E      // code for System.Runtime.InteropServices.SafeBuffer:SpaceCheck(ulong,ulong):this
+            movk    x4, #0xD1FFAB1E LSL #16
+            movk    x4, #0xD1FFAB1E LSL #32
+            ldr     x4, [x4]
+            blr     x4
+            str     wzr, [fp, #0x18]	// [V04 loc2]
+						;; size=80 bbWeight=1 PerfScore 23.50
 G_M1215_IG03:
-            add     x1, fp, #24	// [V05 loc3]
+            add     x1, fp, #24	// [V04 loc2]
             ldr     x0, [fp, #0x10]	// [V00 this]
             movz    x2, #0xD1FFAB1E      // code for System.Runtime.InteropServices.SafeHandle:DangerousAddRef(byref):this
             movk    x2, #0xD1FFAB1E LSL #16
             movk    x2, #0xD1FFAB1E LSL #32
             ldr     x2, [x2]
             blr     x2
-            mov     w2, w20
-            add     x0, fp, #32	// [V04 loc2]
-            mov     x1, x19
-            movz    x3, #0xD1FFAB1E      // code for System.SpanHelpers:Memmove(byref,byref,ulong)
-            movk    x3, #0xD1FFAB1E LSL #16
-            movk    x3, #0xD1FFAB1E LSL #32
-            ldr     x3, [x3]
-            blr     x3
-						;; size=60 bbWeight=1 PerfScore 15.00
+            ldr     w19, [x19]
+						;; size=32 bbWeight=1 PerfScore 11.00
 G_M1215_IG04:
-            ldrb    w0, [fp, #0x18]	// [V05 loc3]
+            ldrb    w0, [fp, #0x18]	// [V04 loc2]
             cbz     w0, G_M1215_IG06
 						;; size=8 bbWeight=1 PerfScore 3.00
 G_M1215_IG05:
             ldr     x0, [fp, #0x10]	// [V00 this]
             mov     w1, wzr
             movz    x2, #0xD1FFAB1E      // code for System.Runtime.InteropServices.SafeHandle:InternalRelease(ubyte):this
             movk    x2, #0xD1FFAB1E LSL #16
             movk    x2, #0xD1FFAB1E LSL #32
             ldr     x2, [x2]
             blr     x2
 						;; size=28 bbWeight=0.50 PerfScore 4.00
 G_M1215_IG06:
-            ldr     w0, [fp, #0x20]	// [V04 loc2]
-						;; size=4 bbWeight=1 PerfScore 2.00
+            mov     w0, w19
+						;; size=4 bbWeight=1 PerfScore 0.50
 G_M1215_IG07:
-            ldp     x19, x20, [sp, #0x30]
-            ldp     fp, lr, [sp], #0x40
+            ldr     x19, [sp, #0x28]
+            ldp     fp, lr, [sp], #0x30
             ret     lr
-						;; size=12 bbWeight=1 PerfScore 3.00
+						;; size=12 bbWeight=1 PerfScore 4.00
 G_M1215_IG08:
             movz    x0, #0xD1FFAB1E      // code for System.Runtime.InteropServices.SafeBuffer:NotInitialized():System.InvalidOperationException
             movk    x0, #0xD1FFAB1E LSL #16
             movk    x0, #0xD1FFAB1E LSL #32
             ldr     x0, [x0]
             blr     x0
             bl      CORINFO_HELP_THROW
             brk_unix #0
 						;; size=28 bbWeight=0 PerfScore 0.00
 G_M1215_IG09:
-            stp     fp, lr, [sp, #-0x30]!
-            stp     x19, x20, [sp, #0x20]
-            add     x3, fp, #64
-            str     x3, [sp, #0x18]
+            stp     fp, lr, [sp, #-0x20]!
+            str     x19, [sp, #0x18]
+            add     x3, fp, #48
+            str     x3, [sp, #0x10]
 						;; size=16 bbWeight=0 PerfScore 0.00
 G_M1215_IG10:
-            ldrb    w0, [fp, #0x18]	// [V05 loc3]
+            ldrb    w0, [fp, #0x18]	// [V04 loc2]
             cbz     w0, G_M1215_IG11
             ldr     x0, [fp, #0x10]	// [V00 this]
             mov     w1, wzr
             movz    x2, #0xD1FFAB1E      // code for System.Runtime.InteropServices.SafeHandle:InternalRelease(ubyte):this
             movk    x2, #0xD1FFAB1E LSL #16
             movk    x2, #0xD1FFAB1E LSL #32
             ldr     x2, [x2]
             blr     x2
 						;; size=36 bbWeight=0 PerfScore 0.00
 G_M1215_IG11:
-            ldp     x19, x20, [sp, #0x20]
-            ldp     fp, lr, [sp], #0x30
+            ldr     x19, [sp, #0x18]
+            ldp     fp, lr, [sp], #0x20
             ret     lr
 						;; size=12 bbWeight=0 PerfScore 0.00
 
-; Total bytes of code 316, prolog size 28, PerfScore 57.00, instruction count 79, allocated bytes for code 316 (MethodHash=84fefb40) for method System.Runtime.InteropServices.SafeBuffer:Read[int](ulong):int:this (FullOpts)
+; Total bytes of code 284, prolog size 28, PerfScore 51.50, instruction count 71, allocated bytes for code 284 (MethodHash=84fefb40) for method System.Runtime.InteropServices.SafeBuffer:Read[int](ulong):int:this (FullOpts)

-32 (-10.13 % of base) - System.Runtime.InteropServices.SafeBuffer:Read[long](ulong):long:this

 ; Assembly listing for method System.Runtime.InteropServices.SafeBuffer:Read[long](ulong):long:this (FullOpts)
 ; Emitting BLENDED_CODE for generic ARM64 - Unix
 ; FullOpts code
 ; optimized code
 ; fp based frame
 ; fully interruptible
 ; No PGO data
 ; 0 inlinees with PGO data; 3 single block inlinees; 0 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 this         [V00,T00] (  8,  6.50)     ref  ->  [fp+0x10]  this class-hnd EH-live single-def <System.Runtime.InteropServices.SafeBuffer>
 ;  V01 arg1         [V01,T01] (  3,  3   )    long  ->  x19         single-def
-;  V02 loc0         [V02,T02] (  3,  3   )     int  ->  x20        
-;  V03 loc1         [V03,T03] (  3,  3   )    long  ->  x19        
-;  V04 loc2         [V04    ] (  3,  3   )    long  ->  [fp+0x20]  do-not-enreg[X] addr-exposed ld-addr-op
-;  V05 loc3         [V05    ] (  4,  3   )   ubyte  ->  [fp+0x18]  do-not-enreg[X] addr-exposed ld-addr-op
+;  V02 loc0         [V02,T03] (  2,  2   )     int  ->   x0        
+;  V03 loc1         [V03,T02] (  3,  3   )    long  ->  x19        
+;  V04 loc2         [V04    ] (  4,  3   )   ubyte  ->  [fp+0x18]  do-not-enreg[X] addr-exposed ld-addr-op
+;  V05 loc3         [V05,T04] (  2,  2   )    long  ->  x19        
 ;# V06 OutArgs      [V06    ] (  1,  1   )  struct ( 0) [sp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace"
 ;* V07 tmp1         [V07    ] (  0,  0   )    long  ->  zero-ref    "impAppendStmt"
-;  V08 PSPSym       [V08,T04] (  1,  1   )    long  ->  [fp+0x28]  do-not-enreg[V] "PSPSym"
+;  V08 PSPSym       [V08,T05] (  1,  1   )    long  ->  [fp+0x20]  do-not-enreg[V] "PSPSym"
 ;
-; Lcl frame size = 32
+; Lcl frame size = 24
 
 G_M44191_IG01:
-            stp     fp, lr, [sp, #-0x40]!
-            stp     x19, x20, [sp, #0x30]
+            stp     fp, lr, [sp, #-0x30]!
+            str     x19, [sp, #0x28]
             mov     fp, sp
-            add     x2, sp, #64
-            str     x2, [fp, #0x28]	// [V08 PSPSym]
+            add     x2, sp, #48
+            str     x2, [fp, #0x20]	// [V08 PSPSym]
             str     x0, [fp, #0x10]	// [V00 this]
             mov     x19, x1
 						;; size=28 bbWeight=1 PerfScore 5.50
 G_M44191_IG02:
             ldr     x1, [x0, #0x18]
             cmn     x1, #1
             beq     G_M44191_IG08
             movz    x1, #0xD1FFAB1E      // code for System.Runtime.InteropServices.SafeBuffer:SizeOf[long]():uint
             movk    x1, #0xD1FFAB1E LSL #16
             movk    x1, #0xD1FFAB1E LSL #32
             ldr     x1, [x1]
             blr     x1
-            sxtw    w20, w0
-            ldr     x0, [fp, #0x10]	// [V00 this]
-            ldr     x2, [x0, #0x08]
+            ldr     x3, [fp, #0x10]	// [V00 this]
+            ldr     x2, [x3, #0x08]
             add     x19, x2, x19
-            mov     w2, w20
+            mov     w2, w0
+            mov     x0, x3
             mov     x1, x19
-            movz    x3, #0xD1FFAB1E      // code for System.Runtime.InteropServices.SafeBuffer:SpaceCheck(ulong,ulong):this
-            movk    x3, #0xD1FFAB1E LSL #16
-            movk    x3, #0xD1FFAB1E LSL #32
-            ldr     x3, [x3]
-            blr     x3
-            str     xzr, [fp, #0x20]	// [V04 loc2]
-            str     wzr, [fp, #0x18]	// [V05 loc3]
-						;; size=84 bbWeight=1 PerfScore 24.50
+            movz    x4, #0xD1FFAB1E      // code for System.Runtime.InteropServices.SafeBuffer:SpaceCheck(ulong,ulong):this
+            movk    x4, #0xD1FFAB1E LSL #16
+            movk    x4, #0xD1FFAB1E LSL #32
+            ldr     x4, [x4]
+            blr     x4
+            str     wzr, [fp, #0x18]	// [V04 loc2]
+						;; size=80 bbWeight=1 PerfScore 23.50
 G_M44191_IG03:
-            add     x1, fp, #24	// [V05 loc3]
+            add     x1, fp, #24	// [V04 loc2]
             ldr     x0, [fp, #0x10]	// [V00 this]
             movz    x2, #0xD1FFAB1E      // code for System.Runtime.InteropServices.SafeHandle:DangerousAddRef(byref):this
             movk    x2, #0xD1FFAB1E LSL #16
             movk    x2, #0xD1FFAB1E LSL #32
             ldr     x2, [x2]
             blr     x2
-            mov     w2, w20
-            add     x0, fp, #32	// [V04 loc2]
-            mov     x1, x19
-            movz    x3, #0xD1FFAB1E      // code for System.SpanHelpers:Memmove(byref,byref,ulong)
-            movk    x3, #0xD1FFAB1E LSL #16
-            movk    x3, #0xD1FFAB1E LSL #32
-            ldr     x3, [x3]
-            blr     x3
-						;; size=60 bbWeight=1 PerfScore 15.00
+            ldr     x19, [x19]
+						;; size=32 bbWeight=1 PerfScore 11.00
 G_M44191_IG04:
-            ldrb    w0, [fp, #0x18]	// [V05 loc3]
+            ldrb    w0, [fp, #0x18]	// [V04 loc2]
             cbz     w0, G_M44191_IG06
 						;; size=8 bbWeight=1 PerfScore 3.00
 G_M44191_IG05:
             ldr     x0, [fp, #0x10]	// [V00 this]
             mov     w1, wzr
             movz    x2, #0xD1FFAB1E      // code for System.Runtime.InteropServices.SafeHandle:InternalRelease(ubyte):this
             movk    x2, #0xD1FFAB1E LSL #16
             movk    x2, #0xD1FFAB1E LSL #32
             ldr     x2, [x2]
             blr     x2
 						;; size=28 bbWeight=0.50 PerfScore 4.00
 G_M44191_IG06:
-            ldr     x0, [fp, #0x20]	// [V04 loc2]
-						;; size=4 bbWeight=1 PerfScore 2.00
+            mov     x0, x19
+						;; size=4 bbWeight=1 PerfScore 0.50
 G_M44191_IG07:
-            ldp     x19, x20, [sp, #0x30]
-            ldp     fp, lr, [sp], #0x40
+            ldr     x19, [sp, #0x28]
+            ldp     fp, lr, [sp], #0x30
             ret     lr
-						;; size=12 bbWeight=1 PerfScore 3.00
+						;; size=12 bbWeight=1 PerfScore 4.00
 G_M44191_IG08:
             movz    x0, #0xD1FFAB1E      // code for System.Runtime.InteropServices.SafeBuffer:NotInitialized():System.InvalidOperationException
             movk    x0, #0xD1FFAB1E LSL #16
             movk    x0, #0xD1FFAB1E LSL #32
             ldr     x0, [x0]
             blr     x0
             bl      CORINFO_HELP_THROW
             brk_unix #0
 						;; size=28 bbWeight=0 PerfScore 0.00
 G_M44191_IG09:
-            stp     fp, lr, [sp, #-0x30]!
-            stp     x19, x20, [sp, #0x20]
-            add     x3, fp, #64
-            str     x3, [sp, #0x18]
+            stp     fp, lr, [sp, #-0x20]!
+            str     x19, [sp, #0x18]
+            add     x3, fp, #48
+            str     x3, [sp, #0x10]
 						;; size=16 bbWeight=0 PerfScore 0.00
 G_M44191_IG10:
-            ldrb    w0, [fp, #0x18]	// [V05 loc3]
+            ldrb    w0, [fp, #0x18]	// [V04 loc2]
             cbz     w0, G_M44191_IG11
             ldr     x0, [fp, #0x10]	// [V00 this]
             mov     w1, wzr
             movz    x2, #0xD1FFAB1E      // code for System.Runtime.InteropServices.SafeHandle:InternalRelease(ubyte):this
             movk    x2, #0xD1FFAB1E LSL #16
             movk    x2, #0xD1FFAB1E LSL #32
             ldr     x2, [x2]
             blr     x2
 						;; size=36 bbWeight=0 PerfScore 0.00
 G_M44191_IG11:
-            ldp     x19, x20, [sp, #0x20]
-            ldp     fp, lr, [sp], #0x30
+            ldr     x19, [sp, #0x18]
+            ldp     fp, lr, [sp], #0x20
             ret     lr
 						;; size=12 bbWeight=0 PerfScore 0.00
 
-; Total bytes of code 316, prolog size 28, PerfScore 57.00, instruction count 79, allocated bytes for code 316 (MethodHash=99115360) for method System.Runtime.InteropServices.SafeBuffer:Read[long](ulong):long:this (FullOpts)
+; Total bytes of code 284, prolog size 28, PerfScore 51.50, instruction count 71, allocated bytes for code 284 (MethodHash=99115360) for method System.Runtime.InteropServices.SafeBuffer:Read[long](ulong):long:this (FullOpts)

-32 (-10.13 % of base) - System.Runtime.InteropServices.SafeBuffer:Read[short](ulong):short:this

 ; Assembly listing for method System.Runtime.InteropServices.SafeBuffer:Read[short](ulong):short:this (FullOpts)
 ; Emitting BLENDED_CODE for generic ARM64 - Unix
 ; FullOpts code
 ; optimized code
 ; fp based frame
 ; fully interruptible
 ; No PGO data
 ; 0 inlinees with PGO data; 3 single block inlinees; 0 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 this         [V00,T00] (  8,  6.50)     ref  ->  [fp+0x10]  this class-hnd EH-live single-def <System.Runtime.InteropServices.SafeBuffer>
 ;  V01 arg1         [V01,T01] (  3,  3   )    long  ->  x19         single-def
-;  V02 loc0         [V02,T02] (  3,  3   )     int  ->  x20        
-;  V03 loc1         [V03,T03] (  3,  3   )    long  ->  x19        
-;  V04 loc2         [V04    ] (  3,  3   )   short  ->  [fp+0x20]  do-not-enreg[X] addr-exposed ld-addr-op
-;  V05 loc3         [V05    ] (  4,  3   )   ubyte  ->  [fp+0x18]  do-not-enreg[X] addr-exposed ld-addr-op
+;  V02 loc0         [V02,T03] (  2,  2   )     int  ->   x0        
+;  V03 loc1         [V03,T02] (  3,  3   )    long  ->  x19        
+;  V04 loc2         [V04    ] (  4,  3   )   ubyte  ->  [fp+0x18]  do-not-enreg[X] addr-exposed ld-addr-op
+;  V05 loc3         [V05,T04] (  2,  2   )   short  ->  x19        
 ;# V06 OutArgs      [V06    ] (  1,  1   )  struct ( 0) [sp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace"
 ;* V07 tmp1         [V07    ] (  0,  0   )    long  ->  zero-ref    "impAppendStmt"
-;  V08 PSPSym       [V08,T04] (  1,  1   )    long  ->  [fp+0x28]  do-not-enreg[V] "PSPSym"
+;  V08 PSPSym       [V08,T05] (  1,  1   )    long  ->  [fp+0x20]  do-not-enreg[V] "PSPSym"
 ;
-; Lcl frame size = 32
+; Lcl frame size = 24
 
 G_M14975_IG01:
-            stp     fp, lr, [sp, #-0x40]!
-            stp     x19, x20, [sp, #0x30]
+            stp     fp, lr, [sp, #-0x30]!
+            str     x19, [sp, #0x28]
             mov     fp, sp
-            add     x2, sp, #64
-            str     x2, [fp, #0x28]	// [V08 PSPSym]
+            add     x2, sp, #48
+            str     x2, [fp, #0x20]	// [V08 PSPSym]
             str     x0, [fp, #0x10]	// [V00 this]
             mov     x19, x1
 						;; size=28 bbWeight=1 PerfScore 5.50
 G_M14975_IG02:
             ldr     x1, [x0, #0x18]
             cmn     x1, #1
             beq     G_M14975_IG08
             movz    x1, #0xD1FFAB1E      // code for System.Runtime.InteropServices.SafeBuffer:SizeOf[short]():uint
             movk    x1, #0xD1FFAB1E LSL #16
             movk    x1, #0xD1FFAB1E LSL #32
             ldr     x1, [x1]
             blr     x1
-            sxtw    w20, w0
-            ldr     x0, [fp, #0x10]	// [V00 this]
-            ldr     x2, [x0, #0x08]
+            ldr     x3, [fp, #0x10]	// [V00 this]
+            ldr     x2, [x3, #0x08]
             add     x19, x2, x19
-            mov     w2, w20
+            mov     w2, w0
+            mov     x0, x3
             mov     x1, x19
-            movz    x3, #0xD1FFAB1E      // code for System.Runtime.InteropServices.SafeBuffer:SpaceCheck(ulong,ulong):this
-            movk    x3, #0xD1FFAB1E LSL #16
-            movk    x3, #0xD1FFAB1E LSL #32
-            ldr     x3, [x3]
-            blr     x3
-            strh    wzr, [fp, #0x20]	// [V04 loc2]
-            str     wzr, [fp, #0x18]	// [V05 loc3]
-						;; size=84 bbWeight=1 PerfScore 24.50
+            movz    x4, #0xD1FFAB1E      // code for System.Runtime.InteropServices.SafeBuffer:SpaceCheck(ulong,ulong):this
+            movk    x4, #0xD1FFAB1E LSL #16
+            movk    x4, #0xD1FFAB1E LSL #32
+            ldr     x4, [x4]
+            blr     x4
+            str     wzr, [fp, #0x18]	// [V04 loc2]
+						;; size=80 bbWeight=1 PerfScore 23.50
 G_M14975_IG03:
-            add     x1, fp, #24	// [V05 loc3]
+            add     x1, fp, #24	// [V04 loc2]
             ldr     x0, [fp, #0x10]	// [V00 this]
             movz    x2, #0xD1FFAB1E      // code for System.Runtime.InteropServices.SafeHandle:DangerousAddRef(byref):this
             movk    x2, #0xD1FFAB1E LSL #16
             movk    x2, #0xD1FFAB1E LSL #32
             ldr     x2, [x2]
             blr     x2
-            mov     w2, w20
-            add     x0, fp, #32	// [V04 loc2]
-            mov     x1, x19
-            movz    x3, #0xD1FFAB1E      // code for System.SpanHelpers:Memmove(byref,byref,ulong)
-            movk    x3, #0xD1FFAB1E LSL #16
-            movk    x3, #0xD1FFAB1E LSL #32
-            ldr     x3, [x3]
-            blr     x3
-						;; size=60 bbWeight=1 PerfScore 15.00
+            ldrsh   w19, [x19]
+						;; size=32 bbWeight=1 PerfScore 11.00
 G_M14975_IG04:
-            ldrb    w0, [fp, #0x18]	// [V05 loc3]
+            ldrb    w0, [fp, #0x18]	// [V04 loc2]
             cbz     w0, G_M14975_IG06
 						;; size=8 bbWeight=1 PerfScore 3.00
 G_M14975_IG05:
             ldr     x0, [fp, #0x10]	// [V00 this]
             mov     w1, wzr
             movz    x2, #0xD1FFAB1E      // code for System.Runtime.InteropServices.SafeHandle:InternalRelease(ubyte):this
             movk    x2, #0xD1FFAB1E LSL #16
             movk    x2, #0xD1FFAB1E LSL #32
             ldr     x2, [x2]
             blr     x2
 						;; size=28 bbWeight=0.50 PerfScore 4.00
 G_M14975_IG06:
-            ldrsh   x0, [fp, #0x20]	// [V04 loc2]
-						;; size=4 bbWeight=1 PerfScore 2.00
+            mov     w0, w19
+						;; size=4 bbWeight=1 PerfScore 0.50
 G_M14975_IG07:
-            ldp     x19, x20, [sp, #0x30]
-            ldp     fp, lr, [sp], #0x40
+            ldr     x19, [sp, #0x28]
+            ldp     fp, lr, [sp], #0x30
             ret     lr
-						;; size=12 bbWeight=1 PerfScore 3.00
+						;; size=12 bbWeight=1 PerfScore 4.00
 G_M14975_IG08:
             movz    x0, #0xD1FFAB1E      // code for System.Runtime.InteropServices.SafeBuffer:NotInitialized():System.InvalidOperationException
             movk    x0, #0xD1FFAB1E LSL #16
             movk    x0, #0xD1FFAB1E LSL #32
             ldr     x0, [x0]
             blr     x0
             bl      CORINFO_HELP_THROW
             brk_unix #0
 						;; size=28 bbWeight=0 PerfScore 0.00
 G_M14975_IG09:
-            stp     fp, lr, [sp, #-0x30]!
-            stp     x19, x20, [sp, #0x20]
-            add     x3, fp, #64
-            str     x3, [sp, #0x18]
+            stp     fp, lr, [sp, #-0x20]!
+            str     x19, [sp, #0x18]
+            add     x3, fp, #48
+            str     x3, [sp, #0x10]
 						;; size=16 bbWeight=0 PerfScore 0.00
 G_M14975_IG10:
-            ldrb    w0, [fp, #0x18]	// [V05 loc3]
+            ldrb    w0, [fp, #0x18]	// [V04 loc2]
             cbz     w0, G_M14975_IG11
             ldr     x0, [fp, #0x10]	// [V00 this]
             mov     w1, wzr
             movz    x2, #0xD1FFAB1E      // code for System.Runtime.InteropServices.SafeHandle:InternalRelease(ubyte):this
             movk    x2, #0xD1FFAB1E LSL #16
             movk    x2, #0xD1FFAB1E LSL #32
             ldr     x2, [x2]
             blr     x2
 						;; size=36 bbWeight=0 PerfScore 0.00
 G_M14975_IG11:
-            ldp     x19, x20, [sp, #0x20]
-            ldp     fp, lr, [sp], #0x30
+            ldr     x19, [sp, #0x18]
+            ldp     fp, lr, [sp], #0x20
             ret     lr
 						;; size=12 bbWeight=0 PerfScore 0.00
 
-; Total bytes of code 316, prolog size 28, PerfScore 57.00, instruction count 79, allocated bytes for code 316 (MethodHash=291bc580) for method System.Runtime.InteropServices.SafeBuffer:Read[short](ulong):short:this (FullOpts)
+; Total bytes of code 284, prolog size 28, PerfScore 51.50, instruction count 71, allocated bytes for code 284 (MethodHash=291bc580) for method System.Runtime.InteropServices.SafeBuffer:Read[short](ulong):short:this (FullOpts)

-32 (-10.00 % of base) - System.Runtime.InteropServices.SafeBuffer:Read[System.Numerics.Vector`1[float]](ulong):System.Numerics.Vector`1[float]:this

 ; Assembly listing for method System.Runtime.InteropServices.SafeBuffer:Read[System.Numerics.Vector`1[float]](ulong):System.Numerics.Vector`1[float]:this (FullOpts)
 ; Emitting BLENDED_CODE for generic ARM64 - Unix
 ; FullOpts code
 ; optimized code
 ; fp based frame
 ; fully interruptible
 ; No PGO data
 ; 0 inlinees with PGO data; 3 single block inlinees; 0 inlinees without PGO data
 ; Final local variable assignments
 ;
-;  V00 this         [V00,T00] (  8,  6.50)     ref  ->  [fp+0x10]  this class-hnd EH-live single-def <System.Runtime.InteropServices.SafeBuffer>
+;  V00 this         [V00,T00] (  8,  6.50)     ref  ->  [fp+0x18]  this class-hnd EH-live single-def <System.Runtime.InteropServices.SafeBuffer>
 ;  V01 arg1         [V01,T01] (  3,  3   )    long  ->  x19         single-def
-;  V02 loc0         [V02,T02] (  3,  3   )     int  ->  x20        
-;  V03 loc1         [V03,T03] (  3,  3   )    long  ->  x19        
-;  V04 loc2         [V04    ] (  3,  3   )  simd16  ->  [fp+0x20]  HFA(simd16)  do-not-enreg[XS] addr-exposed ld-addr-op <System.Numerics.Vector`1[float]>
-;  V05 loc3         [V05    ] (  4,  3   )   ubyte  ->  [fp+0x18]  do-not-enreg[X] addr-exposed ld-addr-op
+;  V02 loc0         [V02,T03] (  2,  2   )     int  ->   x0        
+;  V03 loc1         [V03,T02] (  3,  3   )    long  ->  x19        
+;  V04 loc2         [V04    ] (  4,  3   )   ubyte  ->  [fp+0x38]  do-not-enreg[X] addr-exposed ld-addr-op
+;  V05 loc3         [V05,T05] (  2,  2   )  simd16  ->  [fp+0x20]  HFA(simd16)  spill-single-def <System.Numerics.Vector`1[float]>
 ;# V06 OutArgs      [V06    ] (  1,  1   )  struct ( 0) [sp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace"
 ;* V07 tmp1         [V07    ] (  0,  0   )    long  ->  zero-ref    "impAppendStmt"
-;  V08 PSPSym       [V08,T04] (  1,  1   )    long  ->  [fp+0x38]  do-not-enreg[V] "PSPSym"
+;  V08 PSPSym       [V08,T04] (  1,  1   )    long  ->  [fp+0x40]  do-not-enreg[V] "PSPSym"
 ;
-; Lcl frame size = 48
+; Lcl frame size = 56
 
 G_M13951_IG01:
             stp     fp, lr, [sp, #-0x50]!
-            stp     x19, x20, [sp, #0x40]
+            str     x19, [sp, #0x48]
             mov     fp, sp
             add     x2, sp, #80
-            str     x2, [fp, #0x38]	// [V08 PSPSym]
-            str     x0, [fp, #0x10]	// [V00 this]
+            str     x2, [fp, #0x40]	// [V08 PSPSym]
+            str     x0, [fp, #0x18]	// [V00 this]
             mov     x19, x1
 						;; size=28 bbWeight=1 PerfScore 5.50
 G_M13951_IG02:
             ldr     x1, [x0, #0x18]
             cmn     x1, #1
             beq     G_M13951_IG08
             movz    x1, #0xD1FFAB1E      // code for System.Runtime.InteropServices.SafeBuffer:SizeOf[System.Numerics.Vector`1[float]]():uint
             movk    x1, #0xD1FFAB1E LSL #16
             movk    x1, #0xD1FFAB1E LSL #32
             ldr     x1, [x1]
             blr     x1
-            sxtw    w20, w0
-            ldr     x0, [fp, #0x10]	// [V00 this]
-            ldr     x2, [x0, #0x08]
+            ldr     x3, [fp, #0x18]	// [V00 this]
+            ldr     x2, [x3, #0x08]
             add     x19, x2, x19
-            mov     w2, w20
+            mov     w2, w0
+            mov     x0, x3
             mov     x1, x19
-            movz    x3, #0xD1FFAB1E      // code for System.Runtime.InteropServices.SafeBuffer:SpaceCheck(ulong,ulong):this
-            movk    x3, #0xD1FFAB1E LSL #16
-            movk    x3, #0xD1FFAB1E LSL #32
-            ldr     x3, [x3]
-            blr     x3
-            movi    v16.4s, #0
-            str     q16, [fp, #0x20]	// [V04 loc2]
-            str     wzr, [fp, #0x18]	// [V05 loc3]
-						;; size=88 bbWeight=1 PerfScore 25.00
+            movz    x4, #0xD1FFAB1E      // code for System.Runtime.InteropServices.SafeBuffer:SpaceCheck(ulong,ulong):this
+            movk    x4, #0xD1FFAB1E LSL #16
+            movk    x4, #0xD1FFAB1E LSL #32
+            ldr     x4, [x4]
+            blr     x4
+            str     wzr, [fp, #0x38]	// [V04 loc2]
+						;; size=80 bbWeight=1 PerfScore 23.50
 G_M13951_IG03:
-            add     x1, fp, #24	// [V05 loc3]
-            ldr     x0, [fp, #0x10]	// [V00 this]
+            add     x1, fp, #56	// [V04 loc2]
+            ldr     x0, [fp, #0x18]	// [V00 this]
             movz    x2, #0xD1FFAB1E      // code for System.Runtime.InteropServices.SafeHandle:DangerousAddRef(byref):this
             movk    x2, #0xD1FFAB1E LSL #16
             movk    x2, #0xD1FFAB1E LSL #32
             ldr     x2, [x2]
             blr     x2
-            mov     w2, w20
-            add     x0, fp, #32	// [V04 loc2]
-            mov     x1, x19
-            movz    x3, #0xD1FFAB1E      // code for System.SpanHelpers:Memmove(byref,byref,ulong)
-            movk    x3, #0xD1FFAB1E LSL #16
-            movk    x3, #0xD1FFAB1E LSL #32
-            ldr     x3, [x3]
-            blr     x3
-						;; size=60 bbWeight=1 PerfScore 15.00
+            ldr     q0, [x19]
+            str     q0, [fp, #0x20]	// [V05 loc3]
+						;; size=36 bbWeight=1 PerfScore 12.00
 G_M13951_IG04:
-            ldrb    w0, [fp, #0x18]	// [V05 loc3]
+            ldrb    w0, [fp, #0x38]	// [V04 loc2]
             cbz     w0, G_M13951_IG06
 						;; size=8 bbWeight=1 PerfScore 3.00
 G_M13951_IG05:
-            ldr     x0, [fp, #0x10]	// [V00 this]
+            ldr     x0, [fp, #0x18]	// [V00 this]
             mov     w1, wzr
             movz    x2, #0xD1FFAB1E      // code for System.Runtime.InteropServices.SafeHandle:InternalRelease(ubyte):this
             movk    x2, #0xD1FFAB1E LSL #16
             movk    x2, #0xD1FFAB1E LSL #32
             ldr     x2, [x2]
             blr     x2
 						;; size=28 bbWeight=0.50 PerfScore 4.00
 G_M13951_IG06:
-            ldr     q0, [fp, #0x20]	// [V04 loc2]
+            ldr     q0, [fp, #0x20]	// [V05 loc3]
 						;; size=4 bbWeight=1 PerfScore 2.00
 G_M13951_IG07:
-            ldp     x19, x20, [sp, #0x40]
+            ldr     x19, [sp, #0x48]
             ldp     fp, lr, [sp], #0x50
             ret     lr
-						;; size=12 bbWeight=1 PerfScore 3.00
+						;; size=12 bbWeight=1 PerfScore 4.00
 G_M13951_IG08:
             movz    x0, #0xD1FFAB1E      // code for System.Runtime.InteropServices.SafeBuffer:NotInitialized():System.InvalidOperationException
             movk    x0, #0xD1FFAB1E LSL #16
             movk    x0, #0xD1FFAB1E LSL #32
             ldr     x0, [x0]
             blr     x0
             bl      CORINFO_HELP_THROW
             brk_unix #0
 						;; size=28 bbWeight=0 PerfScore 0.00
 G_M13951_IG09:
-            stp     fp, lr, [sp, #-0x30]!
-            stp     x19, x20, [sp, #0x20]
+            stp     fp, lr, [sp, #-0x20]!
+            str     x19, [sp, #0x18]
             add     x3, fp, #80
-            str     x3, [sp, #0x18]
+            str     x3, [sp, #0x10]
 						;; size=16 bbWeight=0 PerfScore 0.00
 G_M13951_IG10:
-            ldrb    w0, [fp, #0x18]	// [V05 loc3]
+            ldrb    w0, [fp, #0x38]	// [V04 loc2]
             cbz     w0, G_M13951_IG11
-            ldr     x0, [fp, #0x10]	// [V00 this]
+            ldr     x0, [fp, #0x18]	// [V00 this]
             mov     w1, wzr
             movz    x2, #0xD1FFAB1E      // code for System.Runtime.InteropServices.SafeHandle:InternalRelease(ubyte):this
             movk    x2, #0xD1FFAB1E LSL #16
             movk    x2, #0xD1FFAB1E LSL #32
             ldr     x2, [x2]
             blr     x2
 						;; size=36 bbWeight=0 PerfScore 0.00
 G_M13951_IG11:
-            ldp     x19, x20, [sp, #0x20]
-            ldp     fp, lr, [sp], #0x30
+            ldr     x19, [sp, #0x18]
+            ldp     fp, lr, [sp], #0x20
             ret     lr
 						;; size=12 bbWeight=0 PerfScore 0.00
 
-; Total bytes of code 320, prolog size 28, PerfScore 57.50, instruction count 80, allocated bytes for code 320 (MethodHash=990ac980) for method System.Runtime.InteropServices.SafeBuffer:Read[System.Numerics.Vector`1[float]](ulong):System.Numerics.Vector`1[float]:this (FullOpts)
+; Total bytes of code 288, prolog size 28, PerfScore 54.00, instruction count 72, allocated bytes for code 288 (MethodHash=990ac980) for method System.Runtime.InteropServices.SafeBuffer:Read[System.Numerics.Vector`1[float]](ulong):System.Numerics.Vector`1[float]:this (FullOpts)

-32 (-10.13 % of base) - System.Runtime.InteropServices.SafeBuffer:Read[ubyte](ulong):ubyte:this

 ; Assembly listing for method System.Runtime.InteropServices.SafeBuffer:Read[ubyte](ulong):ubyte:this (FullOpts)
 ; Emitting BLENDED_CODE for generic ARM64 - Unix
 ; FullOpts code
 ; optimized code
 ; fp based frame
 ; fully interruptible
 ; No PGO data
 ; 0 inlinees with PGO data; 3 single block inlinees; 0 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 this         [V00,T00] (  8,  6.50)     ref  ->  [fp+0x10]  this class-hnd EH-live single-def <System.Runtime.InteropServices.SafeBuffer>
 ;  V01 arg1         [V01,T01] (  3,  3   )    long  ->  x19         single-def
-;  V02 loc0         [V02,T02] (  3,  3   )     int  ->  x20        
-;  V03 loc1         [V03,T03] (  3,  3   )    long  ->  x19        
-;  V04 loc2         [V04    ] (  3,  3   )   ubyte  ->  [fp+0x20]  do-not-enreg[X] addr-exposed ld-addr-op
-;  V05 loc3         [V05    ] (  4,  3   )   ubyte  ->  [fp+0x18]  do-not-enreg[X] addr-exposed ld-addr-op
+;  V02 loc0         [V02,T03] (  2,  2   )     int  ->   x0        
+;  V03 loc1         [V03,T02] (  3,  3   )    long  ->  x19        
+;  V04 loc2         [V04    ] (  4,  3   )   ubyte  ->  [fp+0x18]  do-not-enreg[X] addr-exposed ld-addr-op
+;  V05 loc3         [V05,T04] (  2,  2   )   ubyte  ->  x19        
 ;# V06 OutArgs      [V06    ] (  1,  1   )  struct ( 0) [sp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace"
 ;* V07 tmp1         [V07    ] (  0,  0   )    long  ->  zero-ref    "impAppendStmt"
-;  V08 PSPSym       [V08,T04] (  1,  1   )    long  ->  [fp+0x28]  do-not-enreg[V] "PSPSym"
+;  V08 PSPSym       [V08,T05] (  1,  1   )    long  ->  [fp+0x20]  do-not-enreg[V] "PSPSym"
 ;
-; Lcl frame size = 32
+; Lcl frame size = 24
 
 G_M48575_IG01:
-            stp     fp, lr, [sp, #-0x40]!
-            stp     x19, x20, [sp, #0x30]
+            stp     fp, lr, [sp, #-0x30]!
+            str     x19, [sp, #0x28]
             mov     fp, sp
-            add     x2, sp, #64
-            str     x2, [fp, #0x28]	// [V08 PSPSym]
+            add     x2, sp, #48
+            str     x2, [fp, #0x20]	// [V08 PSPSym]
             str     x0, [fp, #0x10]	// [V00 this]
             mov     x19, x1
 						;; size=28 bbWeight=1 PerfScore 5.50
 G_M48575_IG02:
             ldr     x1, [x0, #0x18]
             cmn     x1, #1
             beq     G_M48575_IG08
             movz    x1, #0xD1FFAB1E      // code for System.Runtime.InteropServices.SafeBuffer:SizeOf[ubyte]():uint
             movk    x1, #0xD1FFAB1E LSL #16
             movk    x1, #0xD1FFAB1E LSL #32
             ldr     x1, [x1]
             blr     x1
-            sxtw    w20, w0
-            ldr     x0, [fp, #0x10]	// [V00 this]
-            ldr     x2, [x0, #0x08]
+            ldr     x3, [fp, #0x10]	// [V00 this]
+            ldr     x2, [x3, #0x08]
             add     x19, x2, x19
-            mov     w2, w20
+            mov     w2, w0
+            mov     x0, x3
             mov     x1, x19
-            movz    x3, #0xD1FFAB1E      // code for System.Runtime.InteropServices.SafeBuffer:SpaceCheck(ulong,ulong):this
-            movk    x3, #0xD1FFAB1E LSL #16
-            movk    x3, #0xD1FFAB1E LSL #32
-            ldr     x3, [x3]
-            blr     x3
-            strb    wzr, [fp, #0x20]	// [V04 loc2]
-            str     wzr, [fp, #0x18]	// [V05 loc3]
-						;; size=84 bbWeight=1 PerfScore 24.50
+            movz    x4, #0xD1FFAB1E      // code for System.Runtime.InteropServices.SafeBuffer:SpaceCheck(ulong,ulong):this
+            movk    x4, #0xD1FFAB1E LSL #16
+            movk    x4, #0xD1FFAB1E LSL #32
+            ldr     x4, [x4]
+            blr     x4
+            str     wzr, [fp, #0x18]	// [V04 loc2]
+						;; size=80 bbWeight=1 PerfScore 23.50
 G_M48575_IG03:
-            add     x1, fp, #24	// [V05 loc3]
+            add     x1, fp, #24	// [V04 loc2]
             ldr     x0, [fp, #0x10]	// [V00 this]
             movz    x2, #0xD1FFAB1E      // code for System.Runtime.InteropServices.SafeHandle:DangerousAddRef(byref):this
             movk    x2, #0xD1FFAB1E LSL #16
             movk    x2, #0xD1FFAB1E LSL #32
             ldr     x2, [x2]
             blr     x2
-            mov     w2, w20
-            add     x0, fp, #32	// [V04 loc2]
-            mov     x1, x19
-            movz    x3, #0xD1FFAB1E      // code for System.SpanHelpers:Memmove(byref,byref,ulong)
-            movk    x3, #0xD1FFAB1E LSL #16
-            movk    x3, #0xD1FFAB1E LSL #32
-            ldr     x3, [x3]
-            blr     x3
-						;; size=60 bbWeight=1 PerfScore 15.00
+            ldrb    w19, [x19]
+						;; size=32 bbWeight=1 PerfScore 11.00
 G_M48575_IG04:
-            ldrb    w0, [fp, #0x18]	// [V05 loc3]
+            ldrb    w0, [fp, #0x18]	// [V04 loc2]
             cbz     w0, G_M48575_IG06
 						;; size=8 bbWeight=1 PerfScore 3.00
 G_M48575_IG05:
             ldr     x0, [fp, #0x10]	// [V00 this]
             mov     w1, wzr
             movz    x2, #0xD1FFAB1E      // code for System.Runtime.InteropServices.SafeHandle:InternalRelease(ubyte):this
             movk    x2, #0xD1FFAB1E LSL #16
             movk    x2, #0xD1FFAB1E LSL #32
             ldr     x2, [x2]
             blr     x2
 						;; size=28 bbWeight=0.50 PerfScore 4.00
 G_M48575_IG06:
-            ldrb    w0, [fp, #0x20]	// [V04 loc2]
-						;; size=4 bbWeight=1 PerfScore 2.00
+            mov     w0, w19
+						;; size=4 bbWeight=1 PerfScore 0.50
 G_M48575_IG07:
-            ldp     x19, x20, [sp, #0x30]
-            ldp     fp, lr, [sp], #0x40
+            ldr     x19, [sp, #0x28]
+            ldp     fp, lr, [sp], #0x30
             ret     lr
-						;; size=12 bbWeight=1 PerfScore 3.00
+						;; size=12 bbWeight=1 PerfScore 4.00
 G_M48575_IG08:
             movz    x0, #0xD1FFAB1E      // code for System.Runtime.InteropServices.SafeBuffer:NotInitialized():System.InvalidOperationException
             movk    x0, #0xD1FFAB1E LSL #16
             movk    x0, #0xD1FFAB1E LSL #32
             ldr     x0, [x0]
             blr     x0
             bl      CORINFO_HELP_THROW
             brk_unix #0
 						;; size=28 bbWeight=0 PerfScore 0.00
 G_M48575_IG09:
-            stp     fp, lr, [sp, #-0x30]!
-            stp     x19, x20, [sp, #0x20]
-            add     x3, fp, #64
-            str     x3, [sp, #0x18]
+            stp     fp, lr, [sp, #-0x20]!
+            str     x19, [sp, #0x18]
+            add     x3, fp, #48
+            str     x3, [sp, #0x10]
 						;; size=16 bbWeight=0 PerfScore 0.00
 G_M48575_IG10:
-            ldrb    w0, [fp, #0x18]	// [V05 loc3]
+            ldrb    w0, [fp, #0x18]	// [V04 loc2]
             cbz     w0, G_M48575_IG11
             ldr     x0, [fp, #0x10]	// [V00 this]
             mov     w1, wzr
             movz    x2, #0xD1FFAB1E      // code for System.Runtime.InteropServices.SafeHandle:InternalRelease(ubyte):this
             movk    x2, #0xD1FFAB1E LSL #16
             movk    x2, #0xD1FFAB1E LSL #32
             ldr     x2, [x2]
             blr     x2
 						;; size=36 bbWeight=0 PerfScore 0.00
 G_M48575_IG11:
-            ldp     x19, x20, [sp, #0x20]
-            ldp     fp, lr, [sp], #0x30
+            ldr     x19, [sp, #0x18]
+            ldp     fp, lr, [sp], #0x20
             ret     lr
 						;; size=12 bbWeight=0 PerfScore 0.00
 
-; Total bytes of code 316, prolog size 28, PerfScore 57.00, instruction count 79, allocated bytes for code 316 (MethodHash=0df04240) for method System.Runtime.InteropServices.SafeBuffer:Read[ubyte](ulong):ubyte:this (FullOpts)
+; Total bytes of code 284, prolog size 28, PerfScore 51.50, instruction count 71, allocated bytes for code 284 (MethodHash=0df04240) for method System.Runtime.InteropServices.SafeBuffer:Read[ubyte](ulong):ubyte:this (FullOpts)

Larger list of diffs: https://gist.github.com/MihuBot/6780095c59968b6f1d6e5f377fa962d5

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