[JitDiff X64] [EgorBo] [STJ] Replace module-wide SkipLocalsInit with per-met ...

[MihuBot]

Job completed in 2 minutes 45 seconds (remote runner delay: 0 seconds).
dotnet/runtime#128056

Main commit: dotnet/runtime@553a1fe
PR commit: EgorBo/runtime-1@83e5065

Diffs

Diffs

Found 88 files with textual diffs.

Summary of Code Size diffs:
(Lower is better)

Total bytes of base: 46179818
Total bytes of diff: 46189184
Total bytes of delta: 9366 (0.02 % of base)
Total relative delta: 24.71
    diff is a regression.
    relative diff is a regression.


Top file regressions (bytes):
        9075 : System.Text.Json.dasm (0.55 % of base)
         249 : Microsoft.Extensions.DependencyModel.dasm (0.31 % of base)
          24 : System.Memory.Data.dasm (0.16 % of base)
          18 : Microsoft.Extensions.Logging.EventSource.dasm (0.06 % of base)

4 total files with Code Size differences (0 improved, 4 regressed), 256 unchanged.

Top method regressions (bytes):
         131 (2.34 % of base) : System.Text.Json.dasm - System.Text.Json.JsonDocument:TryGetValue(int,byref):bool:this (FullOpts) (15 methods)
         113 (1.15 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectWithParameterizedConstructorConverter`1[byte]:OnTryRead(byref,System.Type,System.Text.Json.JsonSerializerOptions,byref,byref):bool:this (FullOpts)
         113 (1.15 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectWithParameterizedConstructorConverter`1[double]:OnTryRead(byref,System.Type,System.Text.Json.JsonSerializerOptions,byref,byref):bool:this (FullOpts)
         113 (1.15 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectWithParameterizedConstructorConverter`1[int]:OnTryRead(byref,System.Type,System.Text.Json.JsonSerializerOptions,byref,byref):bool:this (FullOpts)
         113 (1.15 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectWithParameterizedConstructorConverter`1[long]:OnTryRead(byref,System.Type,System.Text.Json.JsonSerializerOptions,byref,byref):bool:this (FullOpts)
         113 (1.15 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectWithParameterizedConstructorConverter`1[short]:OnTryRead(byref,System.Type,System.Text.Json.JsonSerializerOptions,byref,byref):bool:this (FullOpts)
         113 (1.12 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectWithParameterizedConstructorConverter`1[System.Nullable`1[int]]:OnTryRead(byref,System.Type,System.Text.Json.JsonSerializerOptions,byref,byref):bool:this (FullOpts)
         113 (1.13 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectWithParameterizedConstructorConverter`1[System.Numerics.Vector`1[float]]:OnTryRead(byref,System.Type,System.Text.Json.JsonSerializerOptions,byref,byref):bool:this (FullOpts)
         106 (2.35 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectDefaultConverter`1[System.Numerics.Vector`1[float]]:OnTryRead(byref,System.Type,System.Text.Json.JsonSerializerOptions,byref,byref):bool:this (FullOpts)
         104 (1.03 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectWithParameterizedConstructorConverter`1[System.__Canon]:OnTryRead(byref,System.Type,System.Text.Json.JsonSerializerOptions,byref,byref):bool:this (FullOpts)
         101 (2.07 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectDefaultConverter`1[System.__Canon]:OnTryRead(byref,System.Type,System.Text.Json.JsonSerializerOptions,byref,byref):bool:this (FullOpts)
         101 (2.23 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectDefaultConverter`1[System.Nullable`1[int]]:OnTryRead(byref,System.Type,System.Text.Json.JsonSerializerOptions,byref,byref):bool:this (FullOpts)
          92 (1.83 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectDefaultConverter`1[byte]:OnTryRead(byref,System.Type,System.Text.Json.JsonSerializerOptions,byref,byref):bool:this (FullOpts)
          92 (1.83 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectDefaultConverter`1[double]:OnTryRead(byref,System.Type,System.Text.Json.JsonSerializerOptions,byref,byref):bool:this (FullOpts)
          92 (1.83 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectDefaultConverter`1[int]:OnTryRead(byref,System.Type,System.Text.Json.JsonSerializerOptions,byref,byref):bool:this (FullOpts)
          92 (1.83 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectDefaultConverter`1[long]:OnTryRead(byref,System.Type,System.Text.Json.JsonSerializerOptions,byref,byref):bool:this (FullOpts)
          92 (1.83 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectDefaultConverter`1[short]:OnTryRead(byref,System.Type,System.Text.Json.JsonSerializerOptions,byref,byref):bool:this (FullOpts)
          75 (1.48 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer:TryReadMetadata(System.Text.Json.Serialization.JsonConverter,System.Text.Json.Serialization.Metadata.JsonTypeInfo,byref,byref):bool (FullOpts)
          64 (2.09 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectWithParameterizedConstructorConverter`1[byte]:ReadConstructorArgumentsWithContinuation(byref,byref,System.Text.Json.JsonSerializerOptions):bool:this (FullOpts)
          64 (2.09 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectWithParameterizedConstructorConverter`1[double]:ReadConstructorArgumentsWithContinuation(byref,byref,System.Text.Json.JsonSerializerOptions):bool:this (FullOpts)
          64 (2.09 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectWithParameterizedConstructorConverter`1[int]:ReadConstructorArgumentsWithContinuation(byref,byref,System.Text.Json.JsonSerializerOptions):bool:this (FullOpts)
          64 (2.09 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectWithParameterizedConstructorConverter`1[long]:ReadConstructorArgumentsWithContinuation(byref,byref,System.Text.Json.JsonSerializerOptions):bool:this (FullOpts)
          64 (2.09 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectWithParameterizedConstructorConverter`1[short]:ReadConstructorArgumentsWithContinuation(byref,byref,System.Text.Json.JsonSerializerOptions):bool:this (FullOpts)
          64 (2.08 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectWithParameterizedConstructorConverter`1[System.__Canon]:ReadConstructorArgumentsWithContinuation(byref,byref,System.Text.Json.JsonSerializerOptions):bool:this (FullOpts)
          64 (2.09 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectWithParameterizedConstructorConverter`1[System.Nullable`1[int]]:ReadConstructorArgumentsWithContinuation(byref,byref,System.Text.Json.JsonSerializerOptions):bool:this (FullOpts)
          64 (2.09 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectWithParameterizedConstructorConverter`1[System.Numerics.Vector`1[float]]:ReadConstructorArgumentsWithContinuation(byref,byref,System.Text.Json.JsonSerializerOptions):bool:this (FullOpts)
          62 (14.59 % of base) : System.Text.Json.dasm - System.Text.Json.JsonHelpers:StableSortByKey[byte,long](System.Collections.Generic.List`1[byte],System.Func`2[byte,long]) (FullOpts)
          62 (14.52 % of base) : System.Text.Json.dasm - System.Text.Json.JsonHelpers:StableSortByKey[double,long](System.Collections.Generic.List`1[double],System.Func`2[double,long]) (FullOpts)
          62 (14.66 % of base) : System.Text.Json.dasm - System.Text.Json.JsonHelpers:StableSortByKey[int,long](System.Collections.Generic.List`1[int],System.Func`2[int,long]) (FullOpts)
          62 (14.66 % of base) : System.Text.Json.dasm - System.Text.Json.JsonHelpers:StableSortByKey[long,long](System.Collections.Generic.List`1[long],System.Func`2[long,long]) (FullOpts)
          62 (14.59 % of base) : System.Text.Json.dasm - System.Text.Json.JsonHelpers:StableSortByKey[short,long](System.Collections.Generic.List`1[short],System.Func`2[short,long]) (FullOpts)
          62 (10.65 % of base) : System.Text.Json.dasm - System.Text.Json.JsonHelpers:StableSortByKey[System.__Canon,long](System.Collections.Generic.List`1[System.__Canon],System.Func`2[System.__Canon,long]) (FullOpts)
          62 (14.66 % of base) : System.Text.Json.dasm - System.Text.Json.JsonHelpers:StableSortByKey[System.Nullable`1[int],long](System.Collections.Generic.List`1[System.Nullable`1[int]],System.Func`2[System.Nullable`1[int],long]) (FullOpts)
          62 (13.81 % of base) : System.Text.Json.dasm - System.Text.Json.JsonHelpers:StableSortByKey[System.Numerics.Vector`1[float],long](System.Collections.Generic.List`1[System.Numerics.Vector`1[float]],System.Func`2[System.Numerics.Vector`1[float],long]) (FullOpts)
          60 (1.80 % of base) : Microsoft.Extensions.DependencyModel.dasm - Microsoft.Extensions.DependencyModel.DependencyContextWriter:AddRuntimeSpecificAssets(System.Collections.Generic.IEnumerable`1[Microsoft.Extensions.DependencyModel.RuntimeFile],System.String,System.String,System.Text.Json.Utf8JsonWriter) (FullOpts)
          57 (11.66 % of base) : System.Text.Json.dasm - System.Text.Json.JsonDocument:TextEquals(int,System.ReadOnlySpan`1[char],bool):bool:this (FullOpts)
          55 (2.33 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectDefaultConverter`1[byte]:PopulatePropertiesFastPath(System.Object,System.Text.Json.Serialization.Metadata.JsonTypeInfo,System.Text.Json.JsonSerializerOptions,byref,byref) (FullOpts)
          55 (2.33 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectDefaultConverter`1[double]:PopulatePropertiesFastPath(System.Object,System.Text.Json.Serialization.Metadata.JsonTypeInfo,System.Text.Json.JsonSerializerOptions,byref,byref) (FullOpts)
          55 (2.33 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectDefaultConverter`1[int]:PopulatePropertiesFastPath(System.Object,System.Text.Json.Serialization.Metadata.JsonTypeInfo,System.Text.Json.JsonSerializerOptions,byref,byref) (FullOpts)
          55 (2.33 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectDefaultConverter`1[long]:PopulatePropertiesFastPath(System.Object,System.Text.Json.Serialization.Metadata.JsonTypeInfo,System.Text.Json.JsonSerializerOptions,byref,byref) (FullOpts)
          55 (2.33 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectDefaultConverter`1[short]:PopulatePropertiesFastPath(System.Object,System.Text.Json.Serialization.Metadata.JsonTypeInfo,System.Text.Json.JsonSerializerOptions,byref,byref) (FullOpts)
          55 (2.33 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectDefaultConverter`1[System.__Canon]:PopulatePropertiesFastPath(System.Object,System.Text.Json.Serialization.Metadata.JsonTypeInfo,System.Text.Json.JsonSerializerOptions,byref,byref) (FullOpts)
          55 (2.33 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectDefaultConverter`1[System.Nullable`1[int]]:PopulatePropertiesFastPath(System.Object,System.Text.Json.Serialization.Metadata.JsonTypeInfo,System.Text.Json.JsonSerializerOptions,byref,byref) (FullOpts)
          55 (2.33 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectDefaultConverter`1[System.Numerics.Vector`1[float]]:PopulatePropertiesFastPath(System.Object,System.Text.Json.Serialization.Metadata.JsonTypeInfo,System.Text.Json.JsonSerializerOptions,byref,byref) (FullOpts)
          54 (1.40 % of base) : Microsoft.Extensions.DependencyModel.dasm - Microsoft.Extensions.DependencyModel.DependencyContextWriter:AddRuntimeSpecificAssetGroups(System.String,System.Collections.Generic.IEnumerable`1[Microsoft.Extensions.DependencyModel.RuntimeAssetGroup],bool,System.Text.Json.Utf8JsonWriter):bool (FullOpts)
          51 (1.72 % of base) : Microsoft.Extensions.DependencyModel.dasm - Microsoft.Extensions.DependencyModel.DependencyContextWriter:WriteAssetList(System.String,System.Collections.Generic.IEnumerable`1[Microsoft.Extensions.DependencyModel.RuntimeFile],System.Text.Json.Utf8JsonWriter) (FullOpts)
          51 (1.38 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectWithParameterizedConstructorConverter`1[byte]:ReadConstructorArguments(byref,byref,System.Text.Json.JsonSerializerOptions):this (FullOpts)
          51 (1.38 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectWithParameterizedConstructorConverter`1[double]:ReadConstructorArguments(byref,byref,System.Text.Json.JsonSerializerOptions):this (FullOpts)
          51 (1.38 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectWithParameterizedConstructorConverter`1[int]:ReadConstructorArguments(byref,byref,System.Text.Json.JsonSerializerOptions):this (FullOpts)
          51 (1.38 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectWithParameterizedConstructorConverter`1[long]:ReadConstructorArguments(byref,byref,System.Text.Json.JsonSerializerOptions):this (FullOpts)
          51 (1.38 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectWithParameterizedConstructorConverter`1[short]:ReadConstructorArguments(byref,byref,System.Text.Json.JsonSerializerOptions):this (FullOpts)
          51 (1.38 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectWithParameterizedConstructorConverter`1[System.__Canon]:ReadConstructorArguments(byref,byref,System.Text.Json.JsonSerializerOptions):this (FullOpts)
          51 (1.38 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectWithParameterizedConstructorConverter`1[System.Nullable`1[int]]:ReadConstructorArguments(byref,byref,System.Text.Json.JsonSerializerOptions):this (FullOpts)
          51 (1.38 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.ObjectWithParameterizedConstructorConverter`1[System.Numerics.Vector`1[float]]:ReadConstructorArguments(byref,byref,System.Text.Json.JsonSerializerOptions):this (FullOpts)
          42 (1.35 % of base) : Microsoft.Extensions.DependencyModel.dasm - Microsoft.Extensions.DependencyModel.DependencyContextWriter:AddResourceAssemblies(System.Collections.Generic.IReadOnlyList`1[Microsoft.Extensions.DependencyModel.ResourceAssembly],System.Text.Json.Utf8JsonWriter) (FullOpts)
          41 (9.79 % of base) : System.Text.Json.dasm - System.Text.Json.JsonHelpers:TryParseAsISO(System.ReadOnlySpan`1[byte],byref):bool (FullOpts) (2 methods)
          38 (1.97 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSeparatorNamingPolicy:ConvertNameCore(System.Nullable`1[char],int,System.ReadOnlySpan`1[char]):System.String (FullOpts)
          38 (0.88 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.FSharpUnionConverter`1[System.__Canon]:ReadFromObject(byref,System.Text.Json.JsonSerializerOptions,byref):System.__Canon:this (FullOpts)
          37 (7.57 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonWriter:WriteNumberEscapeProperty(System.ReadOnlySpan`1[byte],long,int):this (FullOpts)
          37 (7.57 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonWriter:WriteNumberEscapeProperty(System.ReadOnlySpan`1[byte],ulong,int):this (FullOpts)
          34 (1.63 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|26_0>d`1[byte]:MoveNext():this (FullOpts)
          34 (1.63 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|26_0>d`1[double]:MoveNext():this (FullOpts)
          34 (1.63 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|26_0>d`1[int]:MoveNext():this (FullOpts)
          34 (1.63 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|26_0>d`1[long]:MoveNext():this (FullOpts)
          34 (1.63 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|26_0>d`1[short]:MoveNext():this (FullOpts)
          34 (1.63 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|26_0>d`1[System.Nullable`1[int]]:MoveNext():this (FullOpts)
          34 (1.60 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|26_0>d`1[System.Numerics.Vector`1[float]]:MoveNext():this (FullOpts)
          34 (2.64 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Metadata.JsonTypeInfo`1[System.Numerics.Vector`1[float]]:Deserialize(System.IO.Stream):System.Numerics.Vector`1[float]:this (FullOpts)
          32 (9.55 % of base) : System.Text.Json.dasm - System.Text.Json.JsonReaderHelper:TryGetValue(System.ReadOnlySpan`1[byte],bool,byref):bool (FullOpts) (3 methods)
          30 (7.63 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonWriter:WriteNumberEscapeProperty(System.ReadOnlySpan`1[char],long,int):this (FullOpts)
          30 (7.63 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonWriter:WriteNumberEscapeProperty(System.ReadOnlySpan`1[char],ulong,int):this (FullOpts)
          26 (5.18 % of base) : System.Text.Json.dasm - System.Text.Json.JsonHelpers:EscapeValue(System.ReadOnlySpan`1[byte],int,System.Text.Encodings.Web.JavaScriptEncoder):byte[] (FullOpts)
          26 (5.25 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonWriter:WriteStringEscapeValue(System.ReadOnlySpan`1[byte],int):this (FullOpts)
          25 (0.96 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|26_0>d`1[System.__Canon]:MoveNext():this (FullOpts)
          25 (4.08 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonWriter:WriteStartEscapeProperty(System.ReadOnlySpan`1[byte],byte,int):this (FullOpts)
          24 (1.20 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|105_0>d`1[byte]:MoveNext():this (FullOpts)
          24 (1.20 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|105_0>d`1[double]:MoveNext():this (FullOpts)
          24 (1.20 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|105_0>d`1[int]:MoveNext():this (FullOpts)
          24 (1.20 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|105_0>d`1[long]:MoveNext():this (FullOpts)
          24 (1.20 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|105_0>d`1[short]:MoveNext():this (FullOpts)
          24 (0.96 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|105_0>d`1[System.__Canon]:MoveNext():this (FullOpts)
          24 (1.20 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|105_0>d`1[System.Nullable`1[int]]:MoveNext():this (FullOpts)
          24 (1.18 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|105_0>d`1[System.Numerics.Vector`1[float]]:MoveNext():this (FullOpts)
          23 (5.62 % of base) : System.Text.Json.dasm - System.Text.Json.JsonHelpers:GetEscapedPropertyNameSection(System.ReadOnlySpan`1[byte],int,System.Text.Encodings.Web.JavaScriptEncoder):byte[] (FullOpts)
          23 (11.50 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.DecimalConverter:ReadNumberWithCustomHandling(byref,int,System.Text.Json.JsonSerializerOptions):System.Decimal:this (FullOpts)
          23 (4.58 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonWriter:WriteBase64EscapeProperty(System.ReadOnlySpan`1[byte],System.ReadOnlySpan`1[byte],int):this (FullOpts)
          23 (4.58 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonWriter:WriteLiteralEscapeProperty(System.ReadOnlySpan`1[byte],System.ReadOnlySpan`1[byte],int):this (FullOpts)
          23 (4.67 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonWriter:WriteNumberEscapeProperty(System.ReadOnlySpan`1[byte],double,int):this (FullOpts)
          23 (4.67 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonWriter:WriteNumberEscapeProperty(System.ReadOnlySpan`1[byte],float,int):this (FullOpts)
          23 (4.58 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonWriter:WriteNumberEscapeProperty(System.ReadOnlySpan`1[byte],System.Decimal,int):this (FullOpts)
          23 (4.69 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonWriter:WriteStringEscapeProperty(System.ReadOnlySpan`1[byte],System.DateTime,int):this (FullOpts)
          23 (4.58 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonWriter:WriteStringEscapeProperty(System.ReadOnlySpan`1[byte],System.DateTimeOffset,int):this (FullOpts)
          23 (4.58 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonWriter:WriteStringEscapeProperty(System.ReadOnlySpan`1[byte],System.Guid,int):this (FullOpts)
          23 (4.58 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonWriter:WriteStringEscapePropertyOnly(System.ReadOnlySpan`1[byte],System.ReadOnlySpan`1[byte],int):this (FullOpts)
          22 (4.37 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonWriter:WriteStringEscapeValueOnly(System.ReadOnlySpan`1[byte],System.ReadOnlySpan`1[byte],int):this (FullOpts)
          21 (0.58 % of base) : System.Text.Json.dasm - System.Text.Json.Schema.JsonSchema:ToJsonNode(System.Text.Json.Schema.JsonSchemaExporterOptions):System.Text.Json.Nodes.JsonNode:this (FullOpts)
          21 (7.17 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.DecimalConverter:Read(byref,System.Type,System.Text.Json.JsonSerializerOptions):System.Decimal:this (FullOpts)
          20 (13.07 % of base) : System.Text.Json.dasm - System.Text.Json.JsonHelpers:TryParseAsIso(System.ReadOnlySpan`1[byte],byref):bool (FullOpts)
          20 (1.44 % of base) : System.Text.Json.dasm - System.Text.Json.JsonReaderHelper:TryUnescape(System.ReadOnlySpan`1[byte],System.Span`1[byte],int,byref):bool (FullOpts)
          20 (3.52 % of base) : System.Text.Json.dasm - System.Text.Json.JsonWriterHelper:EscapeString(System.ReadOnlySpan`1[byte],System.Span`1[byte],int,System.Text.Encodings.Web.JavaScriptEncoder,byref,byref,bool) (FullOpts)

Top method improvements (bytes):
         -14 (-0.55 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer:GetReaderScopedToNextValue(byref,byref):System.Text.Json.Utf8JsonReader (FullOpts)
          -9 (-1.69 % of base) : System.Text.Json.dasm - System.Text.Json.JsonDocument:ParseValue(System.ReadOnlySpan`1[char],System.Text.Json.JsonDocumentOptions):System.Text.Json.JsonDocument (FullOpts)
          -9 (-1.71 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer:Deserialize[System.Numerics.Vector`1[float]](System.Text.Json.JsonDocument,System.Text.Json.JsonSerializerOptions):System.Numerics.Vector`1[float] (FullOpts)
          -9 (-1.58 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer:Deserialize[System.Numerics.Vector`1[float]](System.Text.Json.JsonDocument,System.Text.Json.Serialization.Metadata.JsonTypeInfo`1[System.Numerics.Vector`1[float]]):System.Numerics.Vector`1[float] (FullOpts)
          -9 (-1.64 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer:Deserialize[System.Numerics.Vector`1[float]](System.Text.Json.JsonElement,System.Text.Json.JsonSerializerOptions):System.Numerics.Vector`1[float] (FullOpts)
          -9 (-1.52 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer:Deserialize[System.Numerics.Vector`1[float]](System.Text.Json.JsonElement,System.Text.Json.Serialization.Metadata.JsonTypeInfo`1[System.Numerics.Vector`1[float]]):System.Numerics.Vector`1[float] (FullOpts)
          -9 (-2.00 % of base) : System.Text.Json.dasm - System.Text.Json.Nodes.JsonNode:ToJsonString(System.Text.Json.JsonSerializerOptions):System.String:this (FullOpts)
          -7 (-1.75 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer:Read[System.Numerics.Vector`1[float]](byref,System.Text.Json.Serialization.Metadata.JsonTypeInfo`1[System.Numerics.Vector`1[float]]):System.Numerics.Vector`1[float] (FullOpts)
          -5 (-4.13 % of base) : System.Text.Json.dasm - System.Text.Json.JsonDocument:WritePropertyName(byref,System.Text.Json.Utf8JsonWriter):this (FullOpts)
          -5 (-1.34 % of base) : System.Text.Json.dasm - System.Text.Json.JsonDocument:WriteString(byref,System.Text.Json.Utf8JsonWriter):this (FullOpts)
          -4 (-1.98 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|105_0>d`1[byte]:System.IAsyncDisposable.DisposeAsync():System.Threading.Tasks.ValueTask:this (FullOpts)
          -4 (-1.98 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|105_0>d`1[double]:System.IAsyncDisposable.DisposeAsync():System.Threading.Tasks.ValueTask:this (FullOpts)
          -4 (-1.98 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|105_0>d`1[int]:System.IAsyncDisposable.DisposeAsync():System.Threading.Tasks.ValueTask:this (FullOpts)
          -4 (-1.98 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|105_0>d`1[long]:System.IAsyncDisposable.DisposeAsync():System.Threading.Tasks.ValueTask:this (FullOpts)
          -4 (-1.98 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|105_0>d`1[short]:System.IAsyncDisposable.DisposeAsync():System.Threading.Tasks.ValueTask:this (FullOpts)
          -4 (-1.98 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|105_0>d`1[System.Nullable`1[int]]:System.IAsyncDisposable.DisposeAsync():System.Threading.Tasks.ValueTask:this (FullOpts)
          -4 (-1.98 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|105_0>d`1[System.Numerics.Vector`1[float]]:System.IAsyncDisposable.DisposeAsync():System.Threading.Tasks.ValueTask:this (FullOpts)
          -4 (-1.98 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|26_0>d`1[byte]:System.IAsyncDisposable.DisposeAsync():System.Threading.Tasks.ValueTask:this (FullOpts)
          -4 (-1.98 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|26_0>d`1[double]:System.IAsyncDisposable.DisposeAsync():System.Threading.Tasks.ValueTask:this (FullOpts)
          -4 (-1.98 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|26_0>d`1[int]:System.IAsyncDisposable.DisposeAsync():System.Threading.Tasks.ValueTask:this (FullOpts)
          -4 (-1.98 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|26_0>d`1[long]:System.IAsyncDisposable.DisposeAsync():System.Threading.Tasks.ValueTask:this (FullOpts)
          -4 (-1.98 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|26_0>d`1[short]:System.IAsyncDisposable.DisposeAsync():System.Threading.Tasks.ValueTask:this (FullOpts)
          -4 (-1.98 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|26_0>d`1[System.Nullable`1[int]]:System.IAsyncDisposable.DisposeAsync():System.Threading.Tasks.ValueTask:this (FullOpts)
          -4 (-1.98 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|26_0>d`1[System.Numerics.Vector`1[float]]:System.IAsyncDisposable.DisposeAsync():System.Threading.Tasks.ValueTask:this (FullOpts)
          -4 (-0.26 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializerOptions+EqualityComparer:GetHashCode(System.Text.Json.JsonSerializerOptions):int:this (FullOpts)
          -3 (-0.28 % of base) : System.Text.Json.dasm - System.Text.Json.JsonDocument:Parse(System.Buffers.ReadOnlySequence`1[byte],System.Text.Json.JsonDocumentOptions):System.Text.Json.JsonDocument (FullOpts)
          -3 (-0.58 % of base) : System.Text.Json.dasm - System.Text.Json.JsonDocument:Parse(System.ReadOnlyMemory`1[char],System.Text.Json.JsonDocumentOptions):System.Text.Json.JsonDocument (FullOpts)
          -3 (-1.01 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|105_0>d`1[System.__Canon]:System.IAsyncDisposable.DisposeAsync():System.Threading.Tasks.ValueTask:this (FullOpts)
          -3 (-1.01 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|26_0>d`1[System.__Canon]:System.IAsyncDisposable.DisposeAsync():System.Threading.Tasks.ValueTask:this (FullOpts)
          -3 (-0.24 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Metadata.JsonPropertyInfo`1[System.Nullable`1[int]]:ReadJsonAndSetMember(System.Object,byref,byref):bool:this (FullOpts)
          -2 (-0.63 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer:Deserialize[System.Numerics.Vector`1[float]](System.ReadOnlySpan`1[byte],System.Text.Json.JsonSerializerOptions):System.Numerics.Vector`1[float] (FullOpts)
          -2 (-0.51 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer:Deserialize[System.Numerics.Vector`1[float]](System.ReadOnlySpan`1[byte],System.Text.Json.Serialization.Metadata.JsonTypeInfo`1[System.Numerics.Vector`1[float]]):System.Numerics.Vector`1[float] (FullOpts)
          -2 (-0.18 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer:ReadFromNode[System.Numerics.Vector`1[float]](System.Text.Json.Nodes.JsonNode,System.Text.Json.Serialization.Metadata.JsonTypeInfo`1[System.Numerics.Vector`1[float]]):System.Numerics.Vector`1[float] (FullOpts)
          -2 (-0.66 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer:ReadFromSpan[System.Numerics.Vector`1[float]](System.ReadOnlySpan`1[byte],System.Text.Json.Serialization.Metadata.JsonTypeInfo`1[System.Numerics.Vector`1[float]],System.Nullable`1[int]):System.Numerics.Vector`1[float] (FullOpts)
          -2 (-0.05 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.FSharpUnionConverter`1[System.__Canon]:.ctor(System.Text.Json.Serialization.Metadata.FSharpCoreReflectionProxy+FSharpUnionCaseInfo[],System.Func`2[System.Object,int],System.Text.Json.JsonSerializerOptions,System.String):this (FullOpts)

Top method regressions (percentages):
          10 (16.39 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:GetDecimal():System.Decimal:this (FullOpts)
          10 (16.13 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:GetDateTimeOffsetNoValidation():System.DateTimeOffset:this (FullOpts)
          10 (16.13 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:GetGuidNoValidation():System.Guid:this (FullOpts)
          16 (16.00 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:TryGetDecimalCore(byref,System.ReadOnlySpan`1[byte]):bool (FullOpts)
           7 (15.56 % of base) : System.Text.Json.dasm - System.Text.Json.JsonWriterHelper:ToUtf8(System.ReadOnlySpan`1[char],System.Span`1[byte],byref):int (FullOpts)
          62 (14.66 % of base) : System.Text.Json.dasm - System.Text.Json.JsonHelpers:StableSortByKey[int,long](System.Collections.Generic.List`1[int],System.Func`2[int,long]) (FullOpts)
          62 (14.66 % of base) : System.Text.Json.dasm - System.Text.Json.JsonHelpers:StableSortByKey[long,long](System.Collections.Generic.List`1[long],System.Func`2[long,long]) (FullOpts)
          62 (14.66 % of base) : System.Text.Json.dasm - System.Text.Json.JsonHelpers:StableSortByKey[System.Nullable`1[int],long](System.Collections.Generic.List`1[System.Nullable`1[int]],System.Func`2[System.Nullable`1[int],long]) (FullOpts)
          62 (14.59 % of base) : System.Text.Json.dasm - System.Text.Json.JsonHelpers:StableSortByKey[byte,long](System.Collections.Generic.List`1[byte],System.Func`2[byte,long]) (FullOpts)
          62 (14.59 % of base) : System.Text.Json.dasm - System.Text.Json.JsonHelpers:StableSortByKey[short,long](System.Collections.Generic.List`1[short],System.Func`2[short,long]) (FullOpts)
          62 (14.52 % of base) : System.Text.Json.dasm - System.Text.Json.JsonHelpers:StableSortByKey[double,long](System.Collections.Generic.List`1[double],System.Func`2[double,long]) (FullOpts)
           7 (14.29 % of base) : System.Text.Json.dasm - System.Text.Json.JsonWriterHelper:EscapeString(System.ReadOnlySpan`1[byte],System.Span`1[byte],int,System.Text.Encodings.Web.JavaScriptEncoder,byref) (FullOpts)
           7 (14.29 % of base) : System.Text.Json.dasm - System.Text.Json.JsonWriterHelper:EscapeString(System.ReadOnlySpan`1[char],System.Span`1[char],int,System.Text.Encodings.Web.JavaScriptEncoder,byref) (FullOpts)
           9 (13.85 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.DateTimeOffsetConverter:ReadAsPropertyNameCore(byref,System.Type,System.Text.Json.JsonSerializerOptions):System.DateTimeOffset:this (FullOpts)
           9 (13.85 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.GuidConverter:ReadAsPropertyNameCore(byref,System.Type,System.Text.Json.JsonSerializerOptions):System.Guid:this (FullOpts)
          62 (13.81 % of base) : System.Text.Json.dasm - System.Text.Json.JsonHelpers:StableSortByKey[System.Numerics.Vector`1[float],long](System.Collections.Generic.List`1[System.Numerics.Vector`1[float]],System.Func`2[System.Numerics.Vector`1[float],long]) (FullOpts)
          10 (13.70 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Metadata.JsonTypeInfo`1[System.Numerics.Vector`1[float]]:Deserialize(byref,byref):System.Numerics.Vector`1[float]:this (FullOpts)
           6 (13.33 % of base) : System.Text.Json.dasm - System.SR:GetUsingResourceKeysSwitchValue():bool (FullOpts)
          20 (13.07 % of base) : System.Text.Json.dasm - System.Text.Json.JsonHelpers:TryParseAsIso(System.ReadOnlySpan`1[byte],byref):bool (FullOpts)
           6 (12.77 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Metadata.JsonTypeInfo`1[int]:Deserialize(byref,byref):int:this (FullOpts)
           6 (12.50 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Metadata.JsonTypeInfo`1[byte]:Deserialize(byref,byref):byte:this (FullOpts)
           6 (12.50 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Metadata.JsonTypeInfo`1[long]:Deserialize(byref,byref):long:this (FullOpts)
           6 (12.50 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Metadata.JsonTypeInfo`1[System.Nullable`1[int]]:Deserialize(byref,byref):System.Nullable`1[int]:this (FullOpts)
          10 (12.50 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Metadata.JsonTypeInfo`1[System.Numerics.Vector`1[float]]:SerializeAsObject(System.IO.Stream,System.Object):this (FullOpts)
          10 (12.50 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Metadata.JsonTypeInfo`1[System.Numerics.Vector`1[float]]:SerializeAsObject(System.Text.Json.Utf8JsonWriter,System.Object):this (FullOpts)
          18 (12.33 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.JsonConverter`1[System.Numerics.Vector`1[float]]:TryReadAsObject(byref,System.Type,System.Text.Json.JsonSerializerOptions,byref,byref):bool:this (FullOpts)
          16 (12.31 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:GetDecimalWithQuotes():System.Decimal:this (FullOpts)
           6 (12.24 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Metadata.JsonTypeInfo`1[double]:Deserialize(byref,byref):double:this (FullOpts)
           6 (12.24 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Metadata.JsonTypeInfo`1[short]:Deserialize(byref,byref):short:this (FullOpts)
          57 (11.66 % of base) : System.Text.Json.dasm - System.Text.Json.JsonDocument:TextEquals(int,System.ReadOnlySpan`1[char],bool):bool:this (FullOpts)
          10 (11.63 % of base) : System.Text.Json.dasm - System.Text.Json.Nodes.JsonValueOfJsonNumber:GetValue[System.Numerics.Vector`1[float]]():System.Numerics.Vector`1[float]:this (FullOpts)
          10 (11.63 % of base) : System.Text.Json.dasm - System.Text.Json.Nodes.JsonValueOfJsonString:GetValue[System.Numerics.Vector`1[float]]():System.Numerics.Vector`1[float]:this (FullOpts)
          10 (11.63 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:GetDateTimeOffset():System.DateTimeOffset:this (FullOpts)
          10 (11.63 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:GetGuid():System.Guid:this (FullOpts)
          23 (11.50 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.DecimalConverter:ReadNumberWithCustomHandling(byref,int,System.Text.Json.JsonSerializerOptions):System.Decimal:this (FullOpts)
          10 (11.11 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.JsonConverter`1[System.Numerics.Vector`1[float]]:TryWriteAsObject(System.Text.Json.Utf8JsonWriter,System.Object,System.Text.Json.JsonSerializerOptions,byref):bool:this (FullOpts)
           6 (11.11 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:GetByte():byte:this (FullOpts)
          10 (11.11 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:TryGetInt32Core(byref,System.ReadOnlySpan`1[byte]):bool (FullOpts)
          10 (11.11 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:TryGetUInt32Core(byref,System.ReadOnlySpan`1[byte]):bool (FullOpts)
          10 (10.99 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:TryGetByteCore(byref,System.ReadOnlySpan`1[byte]):bool (FullOpts)
          10 (10.99 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:TryGetSByteCore(byref,System.ReadOnlySpan`1[byte]):bool (FullOpts)
          10 (10.87 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonWriter:Base64EncodeAndWrite(System.ReadOnlySpan`1[byte],System.Span`1[byte]):this (FullOpts)
          10 (10.75 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:GetByteWithQuotes():byte:this (FullOpts)
          10 (10.75 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:TryGetInt64Core(byref,System.ReadOnlySpan`1[byte]):bool (FullOpts)
          10 (10.75 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:TryGetUInt64Core(byref,System.ReadOnlySpan`1[byte]):bool (FullOpts)
           6 (10.71 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:GetInt32():int:this (FullOpts)
           6 (10.71 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:GetUInt32():uint:this (FullOpts)
          62 (10.65 % of base) : System.Text.Json.dasm - System.Text.Json.JsonHelpers:StableSortByKey[System.__Canon,long](System.Collections.Generic.List`1[System.__Canon],System.Func`2[System.__Canon,long]) (FullOpts)
          10 (10.64 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:TryGetInt16Core(byref,System.ReadOnlySpan`1[byte]):bool (FullOpts)
          10 (10.64 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:TryGetUInt16Core(byref,System.ReadOnlySpan`1[byte]):bool (FullOpts)
          14 (10.53 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.DecimalConverter:ReadAsPropertyNameCore(byref,System.Type,System.Text.Json.JsonSerializerOptions):System.Decimal:this (FullOpts)
          10 (10.53 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:GetInt32WithQuotes():int:this (FullOpts)
           6 (10.53 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:GetInt64():long:this (FullOpts)
           6 (10.53 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:GetUInt16():ushort:this (FullOpts)
          10 (10.53 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:GetUInt32WithQuotes():uint:this (FullOpts)
           6 (10.53 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:GetUInt64():ulong:this (FullOpts)
          10 (10.42 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:GetUInt16WithQuotes():ushort:this (FullOpts)
           6 (10.34 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:GetDateTimeNoValidation():System.DateTime:this (FullOpts)
           6 (10.34 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:GetDouble():double:this (FullOpts)
           6 (10.34 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:GetInt16():short:this (FullOpts)
           6 (10.34 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:GetSByte():sbyte:this (FullOpts)
          10 (10.31 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.JsonConverter`1[System.Nullable`1[int]]:TryReadAsObject(byref,System.Type,System.Text.Json.JsonSerializerOptions,byref,byref):bool:this (FullOpts)
          10 (10.31 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:GetInt16WithQuotes():short:this (FullOpts)
          10 (10.31 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:GetInt64WithQuotes():long:this (FullOpts)
          10 (10.31 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:GetSByteWithQuotes():sbyte:this (FullOpts)
          10 (10.31 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:GetUInt64WithQuotes():ulong:this (FullOpts)
           9 (10.11 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.DateTimeOffsetConverter:Read(byref,System.Type,System.Text.Json.JsonSerializerOptions):System.DateTimeOffset:this (FullOpts)
           9 (10.11 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.GuidConverter:Read(byref,System.Type,System.Text.Json.JsonSerializerOptions):System.Guid:this (FullOpts)
          10 (10.00 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonWriter:TranscodeAndWrite(System.ReadOnlySpan`1[char],System.Span`1[byte]):this (FullOpts)
           6 (9.84 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.DateTimeConverter:ReadAsPropertyNameCore(byref,System.Type,System.Text.Json.JsonSerializerOptions):System.DateTime:this (FullOpts)
           5 (9.80 % of base) : System.Text.Json.dasm - System.Text.Json.JsonElement+ObjectEnumerator:get_Current():System.Text.Json.JsonProperty:this (FullOpts)
          41 (9.79 % of base) : System.Text.Json.dasm - System.Text.Json.JsonHelpers:TryParseAsISO(System.ReadOnlySpan`1[byte],byref):bool (FullOpts) (2 methods)
          16 (9.58 % of base) : System.Text.Json.dasm - System.Text.Json.AppContextSwitchHelper:.cctor() (FullOpts)
          32 (9.55 % of base) : System.Text.Json.dasm - System.Text.Json.JsonReaderHelper:TryGetValue(System.ReadOnlySpan`1[byte],bool,byref):bool (FullOpts) (3 methods)
          10 (9.26 % of base) : System.Text.Json.dasm - System.Text.Json.Nodes.JsonValueOfJsonNumber:TryGetValue[byte](byref):bool:this (FullOpts)
          10 (9.26 % of base) : System.Text.Json.dasm - System.Text.Json.Nodes.JsonValueOfJsonNumber:TryGetValue[int](byref):bool:this (FullOpts)
          10 (9.17 % of base) : System.Text.Json.dasm - System.Text.Json.Nodes.JsonValueOfJsonBool:GetValue[System.Numerics.Vector`1[float]]():System.Numerics.Vector`1[float]:this (FullOpts)
          10 (9.17 % of base) : System.Text.Json.dasm - System.Text.Json.Nodes.JsonValueOfJsonNumber:TryGetValue[long](byref):bool:this (FullOpts)
          10 (9.17 % of base) : System.Text.Json.dasm - System.Text.Json.Nodes.JsonValueOfJsonNumber:TryGetValue[short](byref):bool:this (FullOpts)
          10 (9.01 % of base) : System.Text.Json.dasm - System.Text.Json.Nodes.JsonValueOfJsonNumber:TryGetValue[System.Nullable`1[int]](byref):bool:this (FullOpts)
          10 (8.93 % of base) : System.Text.Json.dasm - System.Text.Json.Nodes.JsonValueOfJsonNumber:TryGetValue[double](byref):bool:this (FullOpts)
           6 (8.70 % of base) : System.Text.Json.dasm - System.Text.Json.Nodes.JsonValueOfJsonNumber:GetValue[int]():int:this (FullOpts)
           6 (8.70 % of base) : System.Text.Json.dasm - System.Text.Json.Nodes.JsonValueOfJsonString:GetValue[int]():int:this (FullOpts)
          12 (8.63 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.JsonConverter`1[byte]:TryReadAsObject(byref,System.Type,System.Text.Json.JsonSerializerOptions,byref,byref):bool:this (FullOpts)
          12 (8.63 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.JsonConverter`1[int]:TryReadAsObject(byref,System.Type,System.Text.Json.JsonSerializerOptions,byref,byref):bool:this (FullOpts)
           5 (8.62 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:GetSingle():float:this (FullOpts)
           6 (8.57 % of base) : System.Text.Json.dasm - System.Text.Json.Nodes.JsonValueOfJsonNumber:GetValue[byte]():byte:this (FullOpts)
           6 (8.57 % of base) : System.Text.Json.dasm - System.Text.Json.Nodes.JsonValueOfJsonNumber:GetValue[long]():long:this (FullOpts)
           6 (8.57 % of base) : System.Text.Json.dasm - System.Text.Json.Nodes.JsonValueOfJsonNumber:GetValue[System.Nullable`1[int]]():System.Nullable`1[int]:this (FullOpts)
           6 (8.57 % of base) : System.Text.Json.dasm - System.Text.Json.Nodes.JsonValueOfJsonString:GetValue[byte]():byte:this (FullOpts)
           6 (8.57 % of base) : System.Text.Json.dasm - System.Text.Json.Nodes.JsonValueOfJsonString:GetValue[long]():long:this (FullOpts)
           6 (8.57 % of base) : System.Text.Json.dasm - System.Text.Json.Nodes.JsonValueOfJsonString:GetValue[System.Nullable`1[int]]():System.Nullable`1[int]:this (FullOpts)
          12 (8.57 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.JsonConverter`1[long]:TryReadAsObject(byref,System.Type,System.Text.Json.JsonSerializerOptions,byref,byref):bool:this (FullOpts)
          12 (8.57 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.JsonConverter`1[short]:TryReadAsObject(byref,System.Type,System.Text.Json.JsonSerializerOptions,byref,byref):bool:this (FullOpts)
           9 (8.57 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Metadata.JsonTypeInfo`1[System.Numerics.Vector`1[float]]:DeserializeAsObject(byref,byref):System.Object:this (FullOpts)
          10 (8.55 % of base) : System.Text.Json.dasm - System.Text.Json.JsonElement:GetDateTimeOffset():System.DateTimeOffset:this (FullOpts)
          10 (8.55 % of base) : System.Text.Json.dasm - System.Text.Json.JsonElement:GetDecimal():System.Decimal:this (FullOpts)
          10 (8.55 % of base) : System.Text.Json.dasm - System.Text.Json.JsonElement:GetGuid():System.Guid:this (FullOpts)
           6 (8.45 % of base) : System.Text.Json.dasm - System.Text.Json.Nodes.JsonValueOfJsonNumber:GetValue[double]():double:this (FullOpts)
           6 (8.45 % of base) : System.Text.Json.dasm - System.Text.Json.Nodes.JsonValueOfJsonNumber:GetValue[short]():short:this (FullOpts)

Top method improvements (percentages):
          -5 (-4.13 % of base) : System.Text.Json.dasm - System.Text.Json.JsonDocument:WritePropertyName(byref,System.Text.Json.Utf8JsonWriter):this (FullOpts)
          -9 (-2.00 % of base) : System.Text.Json.dasm - System.Text.Json.Nodes.JsonNode:ToJsonString(System.Text.Json.JsonSerializerOptions):System.String:this (FullOpts)
          -4 (-1.98 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|105_0>d`1[byte]:System.IAsyncDisposable.DisposeAsync():System.Threading.Tasks.ValueTask:this (FullOpts)
          -4 (-1.98 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|105_0>d`1[double]:System.IAsyncDisposable.DisposeAsync():System.Threading.Tasks.ValueTask:this (FullOpts)
          -4 (-1.98 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|105_0>d`1[int]:System.IAsyncDisposable.DisposeAsync():System.Threading.Tasks.ValueTask:this (FullOpts)
          -4 (-1.98 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|105_0>d`1[long]:System.IAsyncDisposable.DisposeAsync():System.Threading.Tasks.ValueTask:this (FullOpts)
          -4 (-1.98 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|105_0>d`1[short]:System.IAsyncDisposable.DisposeAsync():System.Threading.Tasks.ValueTask:this (FullOpts)
          -4 (-1.98 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|105_0>d`1[System.Nullable`1[int]]:System.IAsyncDisposable.DisposeAsync():System.Threading.Tasks.ValueTask:this (FullOpts)
          -4 (-1.98 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|105_0>d`1[System.Numerics.Vector`1[float]]:System.IAsyncDisposable.DisposeAsync():System.Threading.Tasks.ValueTask:this (FullOpts)
          -4 (-1.98 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|26_0>d`1[byte]:System.IAsyncDisposable.DisposeAsync():System.Threading.Tasks.ValueTask:this (FullOpts)
          -4 (-1.98 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|26_0>d`1[double]:System.IAsyncDisposable.DisposeAsync():System.Threading.Tasks.ValueTask:this (FullOpts)
          -4 (-1.98 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|26_0>d`1[int]:System.IAsyncDisposable.DisposeAsync():System.Threading.Tasks.ValueTask:this (FullOpts)
          -4 (-1.98 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|26_0>d`1[long]:System.IAsyncDisposable.DisposeAsync():System.Threading.Tasks.ValueTask:this (FullOpts)
          -4 (-1.98 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|26_0>d`1[short]:System.IAsyncDisposable.DisposeAsync():System.Threading.Tasks.ValueTask:this (FullOpts)
          -4 (-1.98 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|26_0>d`1[System.Nullable`1[int]]:System.IAsyncDisposable.DisposeAsync():System.Threading.Tasks.ValueTask:this (FullOpts)
          -4 (-1.98 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|26_0>d`1[System.Numerics.Vector`1[float]]:System.IAsyncDisposable.DisposeAsync():System.Threading.Tasks.ValueTask:this (FullOpts)
          -7 (-1.75 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer:Read[System.Numerics.Vector`1[float]](byref,System.Text.Json.Serialization.Metadata.JsonTypeInfo`1[System.Numerics.Vector`1[float]]):System.Numerics.Vector`1[float] (FullOpts)
          -9 (-1.71 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer:Deserialize[System.Numerics.Vector`1[float]](System.Text.Json.JsonDocument,System.Text.Json.JsonSerializerOptions):System.Numerics.Vector`1[float] (FullOpts)
          -9 (-1.69 % of base) : System.Text.Json.dasm - System.Text.Json.JsonDocument:ParseValue(System.ReadOnlySpan`1[char],System.Text.Json.JsonDocumentOptions):System.Text.Json.JsonDocument (FullOpts)
          -9 (-1.64 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer:Deserialize[System.Numerics.Vector`1[float]](System.Text.Json.JsonElement,System.Text.Json.JsonSerializerOptions):System.Numerics.Vector`1[float] (FullOpts)
          -9 (-1.58 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer:Deserialize[System.Numerics.Vector`1[float]](System.Text.Json.JsonDocument,System.Text.Json.Serialization.Metadata.JsonTypeInfo`1[System.Numerics.Vector`1[float]]):System.Numerics.Vector`1[float] (FullOpts)
          -9 (-1.52 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer:Deserialize[System.Numerics.Vector`1[float]](System.Text.Json.JsonElement,System.Text.Json.Serialization.Metadata.JsonTypeInfo`1[System.Numerics.Vector`1[float]]):System.Numerics.Vector`1[float] (FullOpts)
          -5 (-1.34 % of base) : System.Text.Json.dasm - System.Text.Json.JsonDocument:WriteString(byref,System.Text.Json.Utf8JsonWriter):this (FullOpts)
          -3 (-1.01 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|105_0>d`1[System.__Canon]:System.IAsyncDisposable.DisposeAsync():System.Threading.Tasks.ValueTask:this (FullOpts)
          -3 (-1.01 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer+<<DeserializeAsyncEnumerableCore>g__CreateAsyncEnumerableFromArray|26_0>d`1[System.__Canon]:System.IAsyncDisposable.DisposeAsync():System.Threading.Tasks.ValueTask:this (FullOpts)
          -2 (-0.66 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer:ReadFromSpan[System.Numerics.Vector`1[float]](System.ReadOnlySpan`1[byte],System.Text.Json.Serialization.Metadata.JsonTypeInfo`1[System.Numerics.Vector`1[float]],System.Nullable`1[int]):System.Numerics.Vector`1[float] (FullOpts)
          -2 (-0.63 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer:Deserialize[System.Numerics.Vector`1[float]](System.ReadOnlySpan`1[byte],System.Text.Json.JsonSerializerOptions):System.Numerics.Vector`1[float] (FullOpts)
          -3 (-0.58 % of base) : System.Text.Json.dasm - System.Text.Json.JsonDocument:Parse(System.ReadOnlyMemory`1[char],System.Text.Json.JsonDocumentOptions):System.Text.Json.JsonDocument (FullOpts)
         -14 (-0.55 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer:GetReaderScopedToNextValue(byref,byref):System.Text.Json.Utf8JsonReader (FullOpts)
          -2 (-0.51 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer:Deserialize[System.Numerics.Vector`1[float]](System.ReadOnlySpan`1[byte],System.Text.Json.Serialization.Metadata.JsonTypeInfo`1[System.Numerics.Vector`1[float]]):System.Numerics.Vector`1[float] (FullOpts)
          -3 (-0.28 % of base) : System.Text.Json.dasm - System.Text.Json.JsonDocument:Parse(System.Buffers.ReadOnlySequence`1[byte],System.Text.Json.JsonDocumentOptions):System.Text.Json.JsonDocument (FullOpts)
          -4 (-0.26 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializerOptions+EqualityComparer:GetHashCode(System.Text.Json.JsonSerializerOptions):int:this (FullOpts)
          -3 (-0.24 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Metadata.JsonPropertyInfo`1[System.Nullable`1[int]]:ReadJsonAndSetMember(System.Object,byref,byref):bool:this (FullOpts)
          -2 (-0.18 % of base) : System.Text.Json.dasm - System.Text.Json.JsonSerializer:ReadFromNode[System.Numerics.Vector`1[float]](System.Text.Json.Nodes.JsonNode,System.Text.Json.Serialization.Metadata.JsonTypeInfo`1[System.Numerics.Vector`1[float]]):System.Numerics.Vector`1[float] (FullOpts)
          -2 (-0.05 % of base) : System.Text.Json.dasm - System.Text.Json.Serialization.Converters.FSharpUnionConverter`1[System.__Canon]:.ctor(System.Text.Json.Serialization.Metadata.FSharpCoreReflectionProxy+FSharpUnionCaseInfo[],System.Func`2[System.Object,int],System.Text.Json.JsonSerializerOptions,System.String):this (FullOpts)

683 total methods with Code Size differences (35 improved, 648 regressed), 286487 unchanged.

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

Artifacts:

• diff-frameworks.txt (56 KB)
• ShortDiffsRegressions.md (16 KB)
• LongDiffsRegressions.md (851 KB)
• ShortDiffsImprovements.md (59 KB)
• LongDiffsImprovements.md (261 KB)
• jit-diffs-main.zip (158 MB)
• jit-diffs-pr.zip (158 MB)

[MihuBot]

Top method regressions

131 (2.34 % of base) - System.Text.Json.JsonDocument:TryGetValue(int,byref):bool:this

 ; Assembly listing for method System.Text.Json.JsonDocument:TryGetValue(int,byref):bool:this (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
 ; rbp based frame
 ; fully interruptible
 ; No PGO data
 ; 0 inlinees with PGO data; 15 single block inlinees; 6 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 this         [V00,T00] (  5,  5   )     ref  ->  rdi         this class-hnd single-def <System.Text.Json.JsonDocument>
 ;  V01 arg1         [V01,T01] (  6,  4   )     int  ->  rsi         single-def
 ;  V02 arg2         [V02,T05] (  4,  3   )   byref  ->  rbx         single-def
 ;* V03 loc0         [V03    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op <System.Text.Json.JsonDocument+DbRow>
 ;* V04 loc1         [V04    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op <System.ReadOnlySpan`1[byte]>
 ;* V05 loc2         [V05    ] (  0,  0   )  struct (16) zero-ref    <System.ReadOnlySpan`1[byte]>
 ;# V06 OutArgs      [V06    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
 ;* V07 tmp1         [V07    ] (  0,  0   )     int  ->  zero-ref    "impAppendStmt"
 ;* V08 tmp2         [V08    ] (  0,  0   )   byref  ->  zero-ref    "Inlining Arg"
 ;* V09 tmp3         [V09    ] (  0,  0   )   byref  ->  zero-ref    "Inlining Arg"
 ;* V10 tmp4         [V10    ] (  0,  0   )  struct (16) zero-ref    "spilled call-like call argument" <System.Span`1[byte]>
 ;* V11 tmp5         [V11    ] (  0,  0   )  struct (16) zero-ref    "spilled call-like call argument" <System.ReadOnlySpan`1[byte]>
 ;* V12 tmp6         [V12    ] (  0,  0   )  struct (16) zero-ref    "Inline return value spill temp" <System.Span`1[byte]>
 ;  V13 tmp7         [V13,T02] (  4,  6   )     ref  ->  rax         class-hnd single-def "Inlining Arg" <byte[]>
 ;* V14 tmp8         [V14    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "NewObj constructor temp" <System.Span`1[byte]>
 ;* V15 tmp9         [V15    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "Inline ldloca(s) first use temp" <System.Span`1[byte]>
 ;  V16 tmp10        [V16,T15] (  2,  2   )   byref  ->  rax         single-def "Inlining Arg"
 ;  V17 tmp11        [V17,T17] (  2,  2   )     int  ->  rcx         "Inlining Arg"
 ;* V18 tmp12        [V18    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "Inlining Arg" <System.Span`1[byte]>
 ;* V19 tmp13        [V19    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "NewObj constructor temp" <System.ReadOnlySpan`1[byte]>
 ;* V20 tmp14        [V20    ] (  0,  0   )   byref  ->  zero-ref    single-def "Inlining Arg"
 ;* V21 tmp15        [V21    ] (  0,  0   )     int  ->  zero-ref    "Inlining Arg"
 ;* V22 tmp16        [V22    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "Inlining Arg" <System.ReadOnlySpan`1[byte]>
 ;* V23 tmp17        [V23    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "Inlining Arg" <System.ReadOnlySpan`1[byte]>
 ;  V24 tmp18        [V24,T10] (  3,  4   )   ubyte  ->  rsi         "Inlining Arg"
 ;* V25 tmp19        [V25    ] (  0,  0   )  struct (16) zero-ref    "Inline return value spill temp" <System.ReadOnlySpan`1[byte]>
 ;  V26 tmp20        [V26,T06] (  6,  4   )   byref  ->  r12         "Inline stloc first use temp"
 ;  V27 tmp21        [V27,T08] (  6,  4   )     int  ->  rax         "Inline stloc first use temp"
 ;  V28 tmp22        [V28,T03] (  4,  6   )   byref  ->  r13         single-def "Inlining Arg"
 ;  V29 tmp23        [V29,T07] (  6,  4   )     ref  ->  rdi         class-hnd single-def "Inline stloc first use temp" <System.Object>
 ;* V30 tmp24        [V30    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "NewObj constructor temp" <System.ReadOnlySpan`1[byte]>
 ;* V31 tmp25        [V31    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "updating class info" <System.Buffers.MemoryManager`1[byte]>
 ;* V32 tmp26        [V32    ] (  0,  0   )  struct (16) zero-ref    do-not-enreg[SBRM] multireg-ret multireg-dest "Return value temp for multireg return" <System.Span`1[byte]>
-;* V33 tmp27        [V33    ] (  0,  0   )  struct (16) zero-ref    multireg-ret multireg-dest ld-addr-op "Inline stloc first use temp" <System.Span`1[byte]>
-;  V34 tmp28        [V34,T19] (  3,  1.50)    long  ->  rdi         "Inline stloc first use temp"
-;  V35 tmp29        [V35,T20] (  3,  1.50)     int  ->  rsi         "Inline stloc first use temp"
+;* V33 tmp27        [V33    ] (  0,  0   )  struct (16) zero-ref    multireg-ret multireg-dest ld-addr-op single-def "Inline stloc first use temp" <System.Span`1[byte]>
+;  V34 tmp28        [V34,T19] (  3,  1.50)    long  ->  rdi         single-def "Inline stloc first use temp"
+;  V35 tmp29        [V35,T20] (  3,  1.50)     int  ->  rsi         single-def "Inline stloc first use temp"
 ;* V36 tmp30        [V36    ] (  0,  0   )     ref  ->  zero-ref    class-hnd single-def "updating class info" <byte[]>
 ;* V37 tmp31        [V37    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "updating class info" <byte[]>
 ;  V38 tmp32        [V38,T16] (  2,  2   )   byref  ->  rcx         single-def "Inlining Arg"
 ;* V39 tmp33        [V39    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "Inlining Arg" <System.Span`1[byte]>
 ;  V40 tmp34        [V40,T04] (  4,  6   )     int  ->  rsi         "Inlining Arg"
 ;* V41 tmp35        [V41    ] (  0,  0   )  struct (16) zero-ref    multireg-arg ld-addr-op "NewObj constructor temp" <System.ReadOnlySpan`1[byte]>
 ;* V42 tmp36        [V42    ] (  0,  0   )   byref  ->  zero-ref    "Inlining Arg"
-;  V43 tmp37        [V43,T11] (  3,  3   )     int  ->  r15         "field V03._location (fldOffset=0x0)" P-INDEP
-;  V44 tmp38        [V44,T12] (  3,  3   )     int  ->  r14         "field V03._sizeOrLengthUnion (fldOffset=0x4)" P-INDEP
-;  V45 tmp39        [V45,T18] (  2,  2   )     int  ->  rax         "field V03._numberOfRowsAndTypeUnion (fldOffset=0x8)" P-INDEP
+;  V43 tmp37        [V43,T11] (  3,  3   )     int  ->  r15         single-def "field V03._location (fldOffset=0x0)" P-INDEP
+;  V44 tmp38        [V44,T12] (  3,  3   )     int  ->  r14         single-def "field V03._sizeOrLengthUnion (fldOffset=0x4)" P-INDEP
+;  V45 tmp39        [V45,T18] (  2,  2   )     int  ->  rax         single-def "field V03._numberOfRowsAndTypeUnion (fldOffset=0x8)" P-INDEP
 ;* V46 tmp40        [V46    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V04._reference (fldOffset=0x0)" P-INDEP
-;* V47 tmp41        [V47    ] (  0,  0   )     int  ->  zero-ref    "field V04._length (fldOffset=0x8)" P-INDEP
+;* V47 tmp41        [V47    ] (  0,  0   )     int  ->  zero-ref    single-def "field V04._length (fldOffset=0x8)" P-INDEP
 ;* V48 tmp42        [V48    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V05._reference (fldOffset=0x0)" P-INDEP
-;* V49 tmp43        [V49    ] (  0,  0   )     int  ->  zero-ref    "field V05._length (fldOffset=0x8)" P-INDEP
+;* V49 tmp43        [V49    ] (  0,  0   )     int  ->  zero-ref    single-def "field V05._length (fldOffset=0x8)" P-INDEP
 ;* V50 tmp44        [V50    ] (  0,  0   )   byref  ->  zero-ref    "field V10._reference (fldOffset=0x0)" P-INDEP
 ;* V51 tmp45        [V51    ] (  0,  0   )     int  ->  zero-ref    "field V10._length (fldOffset=0x8)" P-INDEP
 ;* V52 tmp46        [V52    ] (  0,  0   )   byref  ->  zero-ref    "field V11._reference (fldOffset=0x0)" P-INDEP
 ;* V53 tmp47        [V53    ] (  0,  0   )     int  ->  zero-ref    "field V11._length (fldOffset=0x8)" P-INDEP
 ;  V54 tmp48        [V54,T09] (  5,  4   )   byref  ->  rax         "field V12._reference (fldOffset=0x0)" P-INDEP
 ;  V55 tmp49        [V55,T14] (  3,  2   )     int  ->  rcx         "field V12._length (fldOffset=0x8)" P-INDEP
 ;* V56 tmp50        [V56    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V14._reference (fldOffset=0x0)" P-INDEP
-;* V57 tmp51        [V57    ] (  0,  0   )     int  ->  zero-ref    "field V14._length (fldOffset=0x8)" P-INDEP
+;* V57 tmp51        [V57    ] (  0,  0   )     int  ->  zero-ref    single-def "field V14._length (fldOffset=0x8)" P-INDEP
 ;* V58 tmp52        [V58    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V15._reference (fldOffset=0x0)" P-INDEP
-;* V59 tmp53        [V59    ] (  0,  0   )     int  ->  zero-ref    "field V15._length (fldOffset=0x8)" P-INDEP
+;* V59 tmp53        [V59    ] (  0,  0   )     int  ->  zero-ref    single-def "field V15._length (fldOffset=0x8)" P-INDEP
 ;* V60 tmp54        [V60    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V18._reference (fldOffset=0x0)" P-INDEP
-;* V61 tmp55        [V61    ] (  0,  0   )     int  ->  zero-ref    "field V18._length (fldOffset=0x8)" P-INDEP
+;* V61 tmp55        [V61    ] (  0,  0   )     int  ->  zero-ref    single-def "field V18._length (fldOffset=0x8)" P-INDEP
 ;* V62 tmp56        [V62    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V19._reference (fldOffset=0x0)" P-INDEP
-;* V63 tmp57        [V63    ] (  0,  0   )     int  ->  zero-ref    "field V19._length (fldOffset=0x8)" P-INDEP
+;* V63 tmp57        [V63    ] (  0,  0   )     int  ->  zero-ref    single-def "field V19._length (fldOffset=0x8)" P-INDEP
 ;* V64 tmp58        [V64    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V22._reference (fldOffset=0x0)" P-INDEP
-;* V65 tmp59        [V65    ] (  0,  0   )     int  ->  zero-ref    "field V22._length (fldOffset=0x8)" P-INDEP
+;* V65 tmp59        [V65    ] (  0,  0   )     int  ->  zero-ref    single-def "field V22._length (fldOffset=0x8)" P-INDEP
 ;* V66 tmp60        [V66    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V23._reference (fldOffset=0x0)" P-INDEP
 ;* V67 tmp61        [V67    ] (  0,  0   )     int  ->  zero-ref    "field V23._length (fldOffset=0x8)" P-INDEP
 ;* V68 tmp62        [V68    ] (  0,  0   )   byref  ->  zero-ref    "field V25._reference (fldOffset=0x0)" P-INDEP
 ;* V69 tmp63        [V69    ] (  0,  0   )     int  ->  zero-ref    "field V25._length (fldOffset=0x8)" P-INDEP
 ;* V70 tmp64        [V70    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V30._reference (fldOffset=0x0)" P-INDEP
-;* V71 tmp65        [V71    ] (  0,  0   )     int  ->  zero-ref    "field V30._length (fldOffset=0x8)" P-INDEP
+;* V71 tmp65        [V71    ] (  0,  0   )     int  ->  zero-ref    single-def "field V30._length (fldOffset=0x8)" P-INDEP
 ;* V72 tmp66        [V72    ] (  0,  0   )   byref  ->  zero-ref    "field V32._reference (fldOffset=0x0)" P-DEP
 ;* V73 tmp67        [V73    ] (  0,  0   )     int  ->  zero-ref    "field V32._length (fldOffset=0x8)" P-DEP
 ;  V74 tmp68        [V74,T23] (  2,  1   )   byref  ->  r12         "field V33._reference (fldOffset=0x0)" P-INDEP
 ;  V75 tmp69        [V75,T24] (  2,  1   )     int  ->  rax         "field V33._length (fldOffset=0x8)" P-INDEP
 ;* V76 tmp70        [V76    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V39._reference (fldOffset=0x0)" P-INDEP
 ;* V77 tmp71        [V77    ] (  0,  0   )     int  ->  zero-ref    "field V39._length (fldOffset=0x8)" P-INDEP
 ;  V78 tmp72        [V78,T13] (  3,  2   )   byref  ->  rdi         single-def "field V41._reference (fldOffset=0x0)" P-INDEP
-;* V79 tmp73        [V79    ] (  0,  0   )     int  ->  zero-ref    "field V41._length (fldOffset=0x8)" P-INDEP
+;* V79 tmp73        [V79    ] (  0,  0   )     int  ->  zero-ref    single-def "field V41._length (fldOffset=0x8)" P-INDEP
 ;  V80 cse0         [V80,T21] (  3,  1.50)     int  ->  rcx         "CSE #01: moderate"
 ;  V81 cse1         [V81,T22] (  3,  1.50)    long  ->  rax         "CSE #02: moderate"
 ;
 ; Lcl frame size = 8
 
 G_M19143_IG01:
        push     rbp
        push     r15
        push     r14
        push     r13
        push     r12
        push     rbx
        push     rax
        lea      rbp, [rsp+0x30]
        mov      rbx, rdx
 						;; size=19 bbWeight=1 PerfScore 7.75
 G_M19143_IG02:
        cmp      dword ptr [rdi+0x2C], 0
        je       G_M19143_IG14
        mov      rax, gword ptr [rdi+0x30]
        test     rax, rax
        je       SHORT G_M19143_IG04
 						;; size=19 bbWeight=1 PerfScore 6.25
 G_M19143_IG03:
        mov      ecx, dword ptr [rax+0x08]
        cmp      ecx, esi
        jb       G_M19143_IG17
        mov      edx, esi
        lea      rax, bword ptr [rax+rdx+0x10]
        sub      ecx, esi
        jmp      SHORT G_M19143_IG05
 						;; size=22 bbWeight=0.50 PerfScore 3.38
 G_M19143_IG04:
        test     esi, esi
        jne      G_M19143_IG17
        xor      rax, rax
        xor      ecx, ecx
 						;; size=12 bbWeight=0.50 PerfScore 0.88
 G_M19143_IG05:
        cmp      ecx, 12
        jl       G_M19143_IG15
        mov      r15d, dword ptr [rax]
        mov      r14d, dword ptr [rax+0x04]
        mov      eax, dword ptr [rax+0x08]
        shr      eax, 28
        movzx    rsi, al
        cmp      esi, 7
        jne      G_M19143_IG16
        lea      r13, bword ptr [rdi+0x20]
        xor      r12, r12
        xor      eax, eax
        mov      rdi, gword ptr [r13]
        test     rdi, rdi
        je       SHORT G_M19143_IG09
 						;; size=53 bbWeight=1 PerfScore 13.50
 G_M19143_IG06:
        mov      rax, qword ptr [rdi]
        mov      rcx, rax
        test     dword ptr [rcx], 0xD1FFAB1E
        jne      SHORT G_M19143_IG07
        mov      rax, qword ptr [rax+0x40]
        call     [rax+0x28]System.Buffers.MemoryManager`1[byte]:GetSpan():System.Span`1[byte]:this
        mov      r12, rax
        mov      eax, edx
        jmp      SHORT G_M19143_IG08
 						;; size=28 bbWeight=0.50 PerfScore 6.38
 G_M19143_IG07:
        lea      r12, bword ptr [rdi+0x10]
        mov      eax, dword ptr [rdi+0x08]
 						;; size=7 bbWeight=0.50 PerfScore 1.25
 G_M19143_IG08:
        mov      edi, dword ptr [r13+0x08]
        and      edi, 0xD1FFAB1E
        mov      esi, dword ptr [r13+0x0C]
        mov      edx, esi
        add      rdx, rdi
        mov      eax, eax
        cmp      rdx, rax
        ja       G_M19143_IG17
        add      r12, rdi
        mov      eax, esi
 						;; size=35 bbWeight=0.50 PerfScore 3.38
 G_M19143_IG09:
        mov      esi, r14d
        and      esi, 0xD1FFAB1E
        mov      edi, r15d
        mov      edx, esi
        add      rdi, rdx
        mov      edx, eax
        cmp      rdi, rdx
        ja       SHORT G_M19143_IG17
        mov      edi, r15d
        add      rdi, r12
        test     r14d, r14d
        jl       SHORT G_M19143_IG12
 						;; size=35 bbWeight=1 PerfScore 4.50
 G_M19143_IG10:
        mov      rdx, rbx
        mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.JsonReaderHelper:TryDecodeBase64(System.ReadOnlySpan`1[byte],byref):bool
 						;; size=13 bbWeight=0.50 PerfScore 0.25
 G_M19143_IG11:
        add      rsp, 8
        pop      rbx
        pop      r12
        pop      r13
        pop      r14
        pop      r15
        pop      rbp
        tail.jmp [rax]System.Text.Json.JsonReaderHelper:TryDecodeBase64(System.ReadOnlySpan`1[byte],byref):bool
 						;; size=17 bbWeight=0.50 PerfScore 2.62
 G_M19143_IG12:
        mov      rdx, rbx
        mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.JsonReaderHelper:TryGetUnescapedBase64Bytes(System.ReadOnlySpan`1[byte],byref):bool
 						;; size=13 bbWeight=0.50 PerfScore 0.25
 G_M19143_IG13:
        add      rsp, 8
        pop      rbx
        pop      r12
        pop      r13
        pop      r14
        pop      r15
        pop      rbp
        tail.jmp [rax]System.Text.Json.JsonReaderHelper:TryGetUnescapedBase64Bytes(System.ReadOnlySpan`1[byte],byref):bool
 						;; size=17 bbWeight=0.50 PerfScore 2.62
 G_M19143_IG14:
        mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.ThrowHelper:ThrowObjectDisposedException_JsonDocument()
        call     [rax]System.Text.Json.ThrowHelper:ThrowObjectDisposedException_JsonDocument()
        int3     
 						;; size=13 bbWeight=0 PerfScore 0.00
 G_M19143_IG15:
        mov      edi, 40
        mov      rax, 0xD1FFAB1E      ; code for System.ThrowHelper:ThrowArgumentOutOfRangeException(int)
        call     [rax]System.ThrowHelper:ThrowArgumentOutOfRangeException(int)
        int3     
 						;; size=18 bbWeight=0 PerfScore 0.00
 G_M19143_IG16:
        mov      edi, 7
        mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.ThrowHelper:ThrowJsonElementWrongTypeException(byte,byte)
        call     [rax]System.Text.Json.ThrowHelper:ThrowJsonElementWrongTypeException(byte,byte)
        int3     
 						;; size=18 bbWeight=0 PerfScore 0.00
 G_M19143_IG17:
        mov      rax, 0xD1FFAB1E      ; code for System.ThrowHelper:ThrowArgumentOutOfRangeException()
        call     [rax]System.ThrowHelper:ThrowArgumentOutOfRangeException()
        int3     
 						;; size=13 bbWeight=0 PerfScore 0.00
 
 ; Total bytes of code 352, prolog size 19, PerfScore 53.00, instruction count 107, allocated bytes for code 352 (MethodHash=fe88b538) for method System.Text.Json.JsonDocument:TryGetValue(int,byref):bool:this (FullOpts)
 ; ============================================================

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

Larger list of diffs: https://gist.github.com/MihuBot/195abaffa0cd5251b6837dbf5e3af7ac

[MihuBot]

Top method improvements

-9 (-1.69 % of base) - System.Text.Json.JsonDocument:ParseValue(System.ReadOnlySpan`1[char],System.Text.Json.JsonDocumentOptions):System.Text.Json.JsonDocument

 ; Assembly listing for method System.Text.Json.JsonDocument:ParseValue(System.ReadOnlySpan`1[char],System.Text.Json.JsonDocumentOptions):System.Text.Json.JsonDocument (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
 ; rbp based frame
 ; fully interruptible
 ; No PGO data
 ; 0 inlinees with PGO data; 8 single block inlinees; 4 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;* V00 arg0         [V00    ] (  0,  0   )  struct (16) zero-ref    multireg-arg single-def <System.ReadOnlySpan`1[char]>
 ;  V01 arg1         [V01    ] (  4,  4   )  struct ( 8) [rbp-0x18]  do-not-enreg[XSF] addr-exposed ld-addr-op single-def <System.Text.Json.JsonDocumentOptions>
-;  V02 loc0         [V02,T07] (  8,  3.50)     int  ->  [rbp-0x1C]  do-not-enreg[Z] EH-live
+;  V02 loc0         [V02,T08] (  8,  2.50)     int  ->  [rbp-0x1C]  EH-live single-def
 ;  V03 loc1         [V03,T03] (  4,  4   )     ref  ->  r15         class-hnd exact single-def <byte[]>
 ;  V04 loc2         [V04,T00] ( 13,  6   )     ref  ->  [rbp-0x30]  class-hnd EH-live single-def <byte[]>
-;  V05 loc3         [V05,T08] (  3,  3   )     int  ->  rbx        
+;  V05 loc3         [V05,T07] (  3,  3   )     int  ->  rbx         single-def
 ;* V06 loc4         [V06    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op <System.Span`1[byte]>
 ;# V07 OutArgs      [V07    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
 ;* V08 tmp1         [V08    ] (  0,  0   )  struct (16) zero-ref    "spilled call-like call argument" <System.Span`1[byte]>
 ;* V09 tmp2         [V09    ] (  0,  0   )     ref  ->  zero-ref    class-hnd exact "NewArr temp" <byte[]>
 ;* V10 tmp3         [V10    ] (  0,  0   )  struct (16) zero-ref    "spilled call-like call argument" <System.Memory`1[byte]>
 ;* V11 tmp4         [V11    ] (  0,  0   )  struct (16) zero-ref    "impAppendStmt" <System.ReadOnlyMemory`1[byte]>
 ;  V12 tmp5         [V12,T06] (  2,  4   )  struct ( 8) [rbp-0x28]  do-not-enreg[SF] "impAppendStmt" <System.Text.Json.JsonReaderOptions>
 ;* V13 tmp6         [V13    ] (  0,  0   )  struct (16) zero-ref    multireg-arg ld-addr-op "NewObj constructor temp" <System.Span`1[byte]>
 ;* V14 tmp7         [V14    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "NewObj constructor temp" <System.Span`1[byte]>
 ;* V15 tmp8         [V15    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "NewObj constructor temp" <System.Memory`1[byte]>
 ;* V16 tmp9         [V16    ] (  0,  0   )  struct (16) zero-ref    multireg-arg ld-addr-op "NewObj constructor temp" <System.ReadOnlyMemory`1[byte]>
 ;* V17 tmp10        [V17    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "Inlining Arg" <System.Object>
 ;* V18 tmp11        [V18    ] (  0,  0   )     int  ->  zero-ref    "Inlining Arg"
 ;* V19 tmp12        [V19    ] (  0,  0   )     int  ->  zero-ref    "Inlining Arg"
 ;  V20 tmp13        [V20,T01] (  3,  3   )   byref  ->  rbx         single-def "field V00._reference (fldOffset=0x0)" P-INDEP
 ;  V21 tmp14        [V21,T02] (  3,  3   )     int  ->  r15         single-def "field V00._length (fldOffset=0x8)" P-INDEP
 ;* V22 tmp15        [V22    ] (  0,  0   )   byref  ->  zero-ref    "field V06._reference (fldOffset=0x0)" P-INDEP
 ;* V23 tmp16        [V23    ] (  0,  0   )     int  ->  zero-ref    "field V06._length (fldOffset=0x8)" P-INDEP
 ;* V24 tmp17        [V24    ] (  0,  0   )   byref  ->  zero-ref    "field V08._reference (fldOffset=0x0)" P-INDEP
 ;* V25 tmp18        [V25    ] (  0,  0   )     int  ->  zero-ref    "field V08._length (fldOffset=0x8)" P-INDEP
 ;* V26 tmp19        [V26    ] (  0,  0   )     ref  ->  zero-ref    single-def "field V10._object (fldOffset=0x0)" P-INDEP
-;* V27 tmp20        [V27    ] (  0,  0   )     int  ->  zero-ref    "field V10._index (fldOffset=0x8)" P-INDEP
-;* V28 tmp21        [V28    ] (  0,  0   )     int  ->  zero-ref    "field V10._length (fldOffset=0xc)" P-INDEP
+;* V27 tmp20        [V27    ] (  0,  0   )     int  ->  zero-ref    single-def "field V10._index (fldOffset=0x8)" P-INDEP
+;* V28 tmp21        [V28    ] (  0,  0   )     int  ->  zero-ref    single-def "field V10._length (fldOffset=0xc)" P-INDEP
 ;* V29 tmp22        [V29    ] (  0,  0   )     ref  ->  zero-ref    single-def "field V11._object (fldOffset=0x0)" P-INDEP
-;* V30 tmp23        [V30    ] (  0,  0   )     int  ->  zero-ref    "field V11._index (fldOffset=0x8)" P-INDEP
-;* V31 tmp24        [V31    ] (  0,  0   )     int  ->  zero-ref    "field V11._length (fldOffset=0xc)" P-INDEP
+;* V30 tmp23        [V30    ] (  0,  0   )     int  ->  zero-ref    single-def "field V11._index (fldOffset=0x8)" P-INDEP
+;* V31 tmp24        [V31    ] (  0,  0   )     int  ->  zero-ref    single-def "field V11._length (fldOffset=0xc)" P-INDEP
 ;  V32 tmp25        [V32,T11] (  3,  2   )   byref  ->  rdx         "field V13._reference (fldOffset=0x0)" P-INDEP
 ;  V33 tmp26        [V33,T12] (  3,  2   )     int  ->  rcx         "field V13._length (fldOffset=0x8)" P-INDEP
 ;  V34 tmp27        [V34,T09] (  6,  2   )   byref  ->  rax         "field V14._reference (fldOffset=0x0)" P-INDEP
 ;  V35 tmp28        [V35,T10] (  6,  2   )     int  ->  registers   "field V14._length (fldOffset=0x8)" P-INDEP
 ;* V36 tmp29        [V36    ] (  0,  0   )     ref  ->  zero-ref    single-def "field V15._object (fldOffset=0x0)" P-INDEP
-;* V37 tmp30        [V37    ] (  0,  0   )     int  ->  zero-ref    "field V15._index (fldOffset=0x8)" P-INDEP
-;  V38 tmp31        [V38,T13] (  2,  2   )     int  ->  rbx         "field V15._length (fldOffset=0xc)" P-INDEP
+;* V37 tmp30        [V37    ] (  0,  0   )     int  ->  zero-ref    single-def "field V15._index (fldOffset=0x8)" P-INDEP
+;  V38 tmp31        [V38,T13] (  2,  2   )     int  ->  rbx         single-def "field V15._length (fldOffset=0xc)" P-INDEP
 ;* V39 tmp32        [V39    ] (  0,  0   )     ref  ->  zero-ref    single-def "field V16._object (fldOffset=0x0)" P-INDEP
-;* V40 tmp33        [V40    ] (  0,  0   )     int  ->  zero-ref    "field V16._index (fldOffset=0x8)" P-INDEP
-;* V41 tmp34        [V41    ] (  0,  0   )     int  ->  zero-ref    "field V16._length (fldOffset=0xc)" P-INDEP
+;* V40 tmp33        [V40    ] (  0,  0   )     int  ->  zero-ref    single-def "field V16._index (fldOffset=0x8)" P-INDEP
+;* V41 tmp34        [V41    ] (  0,  0   )     int  ->  zero-ref    single-def "field V16._length (fldOffset=0xc)" P-INDEP
 ;  V42 tmp35        [V42,T04] (  2,  4   )     ref  ->  rdi         single-def "argument with side effect"
 ;  V43 tmp36        [V43,T15] (  2,  0   )     ref  ->  rdi         single-def "argument with side effect"
 ;  V44 tmp37        [V44,T05] (  2,  4   )     ref  ->  rdi         single-def "argument with side effect"
 ;* V45 cse0         [V45,T14] (  0,  0   )   byref  ->  zero-ref    multi-def "CSE #03: moderate"
 ;
 ; Lcl frame size = 32
 
 G_M34222_IG01:
        push     rbp
        push     r15
        push     rbx
        sub      rsp, 32
        lea      rbp, [rsp+0x30]
        mov      qword ptr [rbp-0x18], rdx
        mov      rbx, rdi
        mov      r15d, esi
 						;; size=23 bbWeight=1 PerfScore 5.25
 G_M34222_IG02:
        mov      rdi, rbx
        mov      esi, r15d
        mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.JsonReaderHelper:GetUtf8ByteCount(System.ReadOnlySpan`1[char]):int
        call     [rax]System.Text.Json.JsonReaderHelper:GetUtf8ByteCount(System.ReadOnlySpan`1[char]):int
        mov      dword ptr [rbp-0x1C], eax
        mov      rdi, 0xD1FFAB1E      ; global ptr
        test     byte  ptr [rdi], 1
        je       G_M34222_IG13
 						;; size=40 bbWeight=1 PerfScore 8.00
 G_M34222_IG03:
        mov      rdi, 0xD1FFAB1E      ; data for System.Buffers.ArrayPool`1[byte]:s_shared
        mov      rdi, gword ptr [rdi]
        mov      esi, dword ptr [rbp-0x1C]
        mov      rax, 0xD1FFAB1E      ; code for System.Buffers.SharedArrayPool`1[byte]:Rent(int):byte[]:this
        cmp      dword ptr [rdi], edi
        call     [rax]System.Buffers.SharedArrayPool`1[byte]:Rent(int):byte[]:this
        mov      gword ptr [rbp-0x30], rax
 						;; size=34 bbWeight=1 PerfScore 9.50
 G_M34222_IG04:
        cmp      gword ptr [rbp-0x30], 0
        je       SHORT G_M34222_IG06
 						;; size=7 bbWeight=1 PerfScore 2.00
 G_M34222_IG05:
        mov      rax, gword ptr [rbp-0x30]
        lea      rdx, bword ptr [rax+0x10]
        mov      ecx, dword ptr [rax+0x08]
        jmp      SHORT G_M34222_IG07
 						;; size=13 bbWeight=0.50 PerfScore 2.75
 G_M34222_IG06:
        xor      rdx, rdx
        xor      ecx, ecx
 						;; size=4 bbWeight=0.50 PerfScore 0.25
 G_M34222_IG07:
        mov      rdi, rbx
        mov      esi, r15d
        mov      r8, 0xD1FFAB1E      ; code for System.Text.Json.JsonReaderHelper:GetUtf8FromText(System.ReadOnlySpan`1[char],System.Span`1[byte]):int
        call     [r8]System.Text.Json.JsonReaderHelper:GetUtf8FromText(System.ReadOnlySpan`1[char],System.Span`1[byte]):int
        mov      ebx, eax
        movsxd   rsi, ebx
        mov      rdi, 0xD1FFAB1E      ; byte[]
        call     CORINFO_HELP_NEWARR_1_VC
        mov      r15, rax
        mov      rdi, gword ptr [rbp-0x30]
        mov      r8d, ebx
        mov      rdx, r15
        xor      esi, esi
        xor      ecx, ecx
        mov      rax, 0xD1FFAB1E      ; code for System.Buffer:BlockCopy(System.Array,int,System.Array,int,int)
        call     [rax]System.Buffer:BlockCopy(System.Array,int,System.Array,int,int)
        nop      
 						;; size=69 bbWeight=1 PerfScore 11.25
 G_M34222_IG08:
        cmp      gword ptr [rbp-0x30], 0
        je       SHORT G_M34222_IG10
 						;; size=7 bbWeight=1 PerfScore 2.00
 G_M34222_IG09:
        mov      rsi, gword ptr [rbp-0x30]
-       mov      edi, dword ptr [rsi+0x08]
-       cmp      edi, dword ptr [rbp-0x1C]
+       mov      edi, dword ptr [rbp-0x1C]
+       cmp      dword ptr [rsi+0x08], edi
        jb       G_M34222_IG14
        lea      rax, bword ptr [rsi+0x10]
-       mov      edi, dword ptr [rbp-0x1C]
        jmp      SHORT G_M34222_IG11
-						;; size=25 bbWeight=0.50 PerfScore 4.25
+						;; size=22 bbWeight=0.50 PerfScore 3.75
 G_M34222_IG10:
        cmp      dword ptr [rbp-0x1C], 0
        jne      G_M34222_IG14
        xor      rax, rax
        xor      edi, edi
 						;; size=14 bbWeight=0.50 PerfScore 1.25
 G_M34222_IG11:
        mov      esi, edi
        mov      rdi, rax
        mov      rax, 0xD1FFAB1E      ; code for System.SpanHelpers:ClearWithoutReferences(byref,nuint)
        call     [rax]System.SpanHelpers:ClearWithoutReferences(byref,nuint)
        mov      rdi, 0xD1FFAB1E      ; static handle
        mov      rdi, gword ptr [rdi]
        mov      rsi, gword ptr [rbp-0x30]
        xor      edx, edx
        mov      rax, 0xD1FFAB1E      ; code for System.Buffers.SharedArrayPool`1[byte]:Return(byte[],bool):this
        cmp      dword ptr [rdi], edi
        call     [rax]System.Buffers.SharedArrayPool`1[byte]:Return(byte[],bool):this
        mov      ebx, dword ptr [r15+0x08]
        lea      rdi, [rbp-0x18]
        mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.JsonDocumentOptions:GetReaderOptions():System.Text.Json.JsonReaderOptions:this
        call     [rax]System.Text.Json.JsonDocumentOptions:GetReaderOptions():System.Text.Json.JsonReaderOptions:this
        mov      qword ptr [rbp-0x28], rax
        cmp      byte  ptr [rbp-0x12], 0
        sete     r8b
        movzx    r8, r8b
        mov      rdi, r15
        mov      esi, ebx
        shl      rsi, 32
        mov      rdx, qword ptr [rbp-0x28]
        xor      ecx, ecx
        mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.JsonDocument:ParseUnrented(System.ReadOnlyMemory`1[byte],System.Text.Json.JsonReaderOptions,byte,bool):System.Text.Json.JsonDocument
        call     [rax]System.Text.Json.JsonDocument:ParseUnrented(System.ReadOnlyMemory`1[byte],System.Text.Json.JsonReaderOptions,byte,bool):System.Text.Json.JsonDocument
        nop      
 						;; size=114 bbWeight=1 PerfScore 26.75
 G_M34222_IG12:
        add      rsp, 32
        pop      rbx
        pop      r15
        pop      rbp
        ret      
 						;; size=9 bbWeight=1 PerfScore 2.75
 G_M34222_IG13:
        mov      rdi, 0xD1FFAB1E      ; System.Buffers.ArrayPool`1[byte]
        mov      rax, 0xD1FFAB1E      ; code for CORINFO_HELP_GET_GCSTATIC_BASE
        call     [rax]CORINFO_HELP_GET_GCSTATIC_BASE
        jmp      G_M34222_IG03
 						;; size=27 bbWeight=0 PerfScore 0.00
 G_M34222_IG14:
        mov      rax, 0xD1FFAB1E      ; code for System.ThrowHelper:ThrowArgumentOutOfRangeException()
        call     [rax]System.ThrowHelper:ThrowArgumentOutOfRangeException()
        int3     
 						;; size=13 bbWeight=0 PerfScore 0.00
 G_M34222_IG15:
        push     rax
 						;; size=1 bbWeight=0 PerfScore 0.00
 G_M34222_IG16:
        cmp      gword ptr [rbp-0x30], 0
        jne      SHORT G_M34222_IG17
        cmp      dword ptr [rbp-0x1C], 0
        jne      SHORT G_M34222_IG18
        xor      rax, rax
-       xor      r15d, r15d
+       xor      esi, esi
        jmp      SHORT G_M34222_IG20
-						;; size=20 bbWeight=0 PerfScore 0.00
+						;; size=19 bbWeight=0 PerfScore 0.00
 G_M34222_IG17:
        mov      rdi, gword ptr [rbp-0x30]
-       mov      esi, dword ptr [rdi+0x08]
-       cmp      esi, dword ptr [rbp-0x1C]
+       mov      esi, dword ptr [rbp-0x1C]
+       cmp      dword ptr [rdi+0x08], esi
        jae      SHORT G_M34222_IG19
 						;; size=12 bbWeight=0 PerfScore 0.00
 G_M34222_IG18:
        mov      rax, 0xD1FFAB1E      ; code for System.ThrowHelper:ThrowArgumentOutOfRangeException()
        call     [rax]System.ThrowHelper:ThrowArgumentOutOfRangeException()
        int3     
 						;; size=13 bbWeight=0 PerfScore 0.00
 G_M34222_IG19:
        lea      rax, bword ptr [rdi+0x10]
-       mov      r15d, dword ptr [rbp-0x1C]
-						;; size=8 bbWeight=0 PerfScore 0.00
+						;; size=4 bbWeight=0 PerfScore 0.00
 G_M34222_IG20:
-       mov      esi, r15d
+       mov      esi, esi
        mov      rdi, rax
        mov      rax, 0xD1FFAB1E      ; code for System.SpanHelpers:ClearWithoutReferences(byref,nuint)
        call     [rax]System.SpanHelpers:ClearWithoutReferences(byref,nuint)
        mov      rdi, 0xD1FFAB1E      ; System.Buffers.ArrayPool`1[byte]
        mov      rax, 0xD1FFAB1E      ; code for CORINFO_HELP_GET_GCSTATIC_BASE
        call     [rax]CORINFO_HELP_GET_GCSTATIC_BASE
        mov      rdi, 0xD1FFAB1E      ; data for System.Buffers.ArrayPool`1[byte]:s_shared
        mov      rdi, gword ptr [rdi]
        mov      rsi, gword ptr [rbp-0x30]
        xor      edx, edx
        mov      rax, 0xD1FFAB1E      ; code for System.Buffers.SharedArrayPool`1[byte]:Return(byte[],bool):this
        cmp      dword ptr [rdi], edi
        call     [rax]System.Buffers.SharedArrayPool`1[byte]:Return(byte[],bool):this
        nop      
-						;; size=74 bbWeight=0 PerfScore 0.00
+						;; size=73 bbWeight=0 PerfScore 0.00
 G_M34222_IG21:
        add      rsp, 8
        ret      
 						;; size=5 bbWeight=0 PerfScore 0.00
 
-; Total bytes of code 532, prolog size 23, PerfScore 76.00, instruction count 134, allocated bytes for code 532 (MethodHash=ac9b7a51) for method System.Text.Json.JsonDocument:ParseValue(System.ReadOnlySpan`1[char],System.Text.Json.JsonDocumentOptions):System.Text.Json.JsonDocument (FullOpts)
+; Total bytes of code 523, prolog size 23, PerfScore 75.50, instruction count 132, allocated bytes for code 523 (MethodHash=ac9b7a51) for method System.Text.Json.JsonDocument:ParseValue(System.ReadOnlySpan`1[char],System.Text.Json.JsonDocumentOptions):System.Text.Json.JsonDocument (FullOpts)
 ; ============================================================

-9 (-1.71 % of base) - System.Text.Json.JsonSerializer:Deserialize[System.Numerics.Vector`1[float]](System.Text.Json.JsonDocument,System.Text.Json.JsonSerializerOptions):System.Numerics.Vector`1[float]

 ; Assembly listing for method System.Text.Json.JsonSerializer:Deserialize[System.Numerics.Vector`1[float]](System.Text.Json.JsonDocument,System.Text.Json.JsonSerializerOptions):System.Numerics.Vector`1[float] (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
 ; rbp based frame
 ; partially interruptible
 ; No PGO data
 ; 0 inlinees with PGO data; 11 single block inlinees; 2 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 RetBuf       [V00,T01] (  4,  4   )    long  ->  r15         single-def
 ;  V01 arg0         [V01,T00] (  4,  4   )     ref  ->  rbx         class-hnd single-def <System.Text.Json.JsonDocument>
 ;  V02 arg1         [V02,T03] (  3,  3   )     ref  ->  rdx         class-hnd single-def <System.Text.Json.JsonSerializerOptions>
 ;  V03 loc0         [V03,T02] (  5,  5   )     ref  ->  r14         class-hnd exact single-def <System.Text.Json.Serialization.Metadata.JsonTypeInfo`1[System.Numerics.Vector`1[float]]>
-;  V04 loc1         [V04    ] (  9,  5.50)  struct (16) [rbp-0x30]  do-not-enreg[SBRM] multireg-ret multireg-dest must-init ld-addr-op <System.ReadOnlyMemory`1[byte]>
+;  V04 loc1         [V04    ] (  9,  5.50)  struct (16) [rbp-0x30]  do-not-enreg[SBRM] multireg-ret multireg-dest must-init ld-addr-op single-def <System.ReadOnlyMemory`1[byte]>
 ;* V05 loc2         [V05    ] (  0,  0   )  struct ( 8) zero-ref    ld-addr-op <System.Nullable`1[int]>
 ;  V06 OutArgs      [V06    ] (  1,  1   )  struct (56) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <UNNAMED>
 ;* V07 tmp1         [V07    ] (  0,  0   )  struct (16) zero-ref    "impAppendStmt" <System.ReadOnlySpan`1[byte]>
 ;* V08 tmp2         [V08    ] (  0,  0   )  struct (16) zero-ref    do-not-enreg[SRM] multireg-ret multireg-dest "Return value temp for multireg return" <System.ReadOnlyMemory`1[byte]>
 ;  V09 tmp3         [V09,T04] (  6,  4   )   byref  ->  rbx         "Inline stloc first use temp"
 ;  V10 tmp4         [V10,T06] (  6,  4   )     int  ->  r13         "Inline stloc first use temp"
 ;* V11 tmp5         [V11    ] (  0,  0   )     ref  ->  zero-ref    class-hnd single-def "Inline stloc first use temp" <System.Object>
 ;* V12 tmp6         [V12    ] (  0,  0   )  struct (16) zero-ref    multireg-arg ld-addr-op "NewObj constructor temp" <System.ReadOnlySpan`1[byte]>
 ;* V13 tmp7         [V13    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "updating class info" <System.Buffers.MemoryManager`1[byte]>
 ;* V14 tmp8         [V14    ] (  0,  0   )  struct (16) zero-ref    do-not-enreg[SBRM] multireg-ret multireg-dest "Return value temp for multireg return" <System.Span`1[byte]>
-;* V15 tmp9         [V15    ] (  0,  0   )  struct (16) zero-ref    multireg-ret multireg-dest ld-addr-op "Inline stloc first use temp" <System.Span`1[byte]>
-;  V16 tmp10        [V16,T11] (  3,  1.50)    long  ->  rdi         "Inline stloc first use temp"
-;* V17 tmp11        [V17    ] (  0,  0   )     int  ->  zero-ref    "Inline stloc first use temp"
+;* V15 tmp9         [V15    ] (  0,  0   )  struct (16) zero-ref    multireg-ret multireg-dest ld-addr-op single-def "Inline stloc first use temp" <System.Span`1[byte]>
+;  V16 tmp10        [V16,T11] (  3,  1.50)    long  ->  rdi         single-def "Inline stloc first use temp"
+;* V17 tmp11        [V17    ] (  0,  0   )     int  ->  zero-ref    single-def "Inline stloc first use temp"
 ;* V18 tmp12        [V18    ] (  0,  0   )     ref  ->  zero-ref    class-hnd single-def "updating class info" <byte[]>
 ;* V19 tmp13        [V19    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "updating class info" <byte[]>
 ;  V20 tmp14        [V20,T10] (  2,  2   )   byref  ->  rdi         single-def "Inlining Arg"
 ;* V21 tmp15        [V21    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "Inlining Arg" <System.Span`1[byte]>
 ;  V22 tmp16        [V22,T08] (  3,  3   )  struct (56) [rbp-0x68]  do-not-enreg[SF] must-init ld-addr-op "Inline ldloca(s) first use temp" <System.Text.Json.JsonReaderState>
 ;  V23 tmp17        [V23,T07] (  2,  4   )  struct ( 8) rax         "spilled call-like call argument" <System.Text.Json.JsonReaderOptions>
 ;  V24 tmp18        [V24    ] (  2,  2   )  struct (192) [rbp-0x128]  do-not-enreg[XS] must-init addr-exposed ld-addr-op "Inline ldloca(s) first use temp" <System.Text.Json.Utf8JsonReader>
 ;  V25 tmp19        [V25    ] (  3,  3   )  struct (160) [rbp-0x1C8]  do-not-enreg[XS] must-init addr-exposed ld-addr-op "Inline ldloca(s) first use temp" <System.Text.Json.ReadStack>
-;  V26 tmp20        [V26    ] (  2,  2   )  simd32  ->  [rbp-0x1F0]  do-not-enreg[XS] addr-exposed ld-addr-op "Inline ldloca(s) first use temp" <System.Numerics.Vector`1[float]>
+;  V26 tmp20        [V26    ] (  2,  2   )  simd32  ->  [rbp-0x1F0]  do-not-enreg[XS] must-init addr-exposed ld-addr-op "Inline ldloca(s) first use temp" <System.Numerics.Vector`1[float]>
 ;* V27 tmp21        [V27    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "impAppendStmt" <System.Text.Json.Serialization.JsonConverter`1[System.Numerics.Vector`1[float]]>
 ;  V28 tmp22        [V28,T05] (  6,  4   )     ref  ->  [rbp-0x30]  do-not-enreg[] "field V04._object (fldOffset=0x0)" P-DEP
 ;  V29 tmp23        [V29,T13] (  2,  1.50)     int  ->  [rbp-0x28]  do-not-enreg[] "field V04._index (fldOffset=0x8)" P-DEP
 ;  V30 tmp24        [V30,T09] (  3,  2   )     int  ->  [rbp-0x24]  do-not-enreg[] "field V04._length (fldOffset=0xc)" P-DEP
 ;* V31 tmp25        [V31    ] (  0,  0   )   ubyte  ->  zero-ref    "field V05.hasValue (fldOffset=0x0)" P-INDEP
 ;* V32 tmp26        [V32    ] (  0,  0   )     int  ->  zero-ref    "field V05.value (fldOffset=0x4)" P-INDEP
 ;* V33 tmp27        [V33    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V07._reference (fldOffset=0x0)" P-INDEP
-;* V34 tmp28        [V34    ] (  0,  0   )     int  ->  zero-ref    "field V07._length (fldOffset=0x8)" P-INDEP
+;* V34 tmp28        [V34    ] (  0,  0   )     int  ->  zero-ref    single-def "field V07._length (fldOffset=0x8)" P-INDEP
 ;* V35 tmp29        [V35    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V12._reference (fldOffset=0x0)" P-INDEP
-;* V36 tmp30        [V36    ] (  0,  0   )     int  ->  zero-ref    "field V12._length (fldOffset=0x8)" P-INDEP
+;* V36 tmp30        [V36    ] (  0,  0   )     int  ->  zero-ref    single-def "field V12._length (fldOffset=0x8)" P-INDEP
 ;* V37 tmp31        [V37    ] (  0,  0   )   byref  ->  zero-ref    "field V14._reference (fldOffset=0x0)" P-DEP
 ;* V38 tmp32        [V38    ] (  0,  0   )     int  ->  zero-ref    "field V14._length (fldOffset=0x8)" P-DEP
 ;  V39 tmp33        [V39,T14] (  2,  1   )   byref  ->  rbx         "field V15._reference (fldOffset=0x0)" P-INDEP
 ;  V40 tmp34        [V40,T15] (  2,  1   )     int  ->  r13         "field V15._length (fldOffset=0x8)" P-INDEP
 ;* V41 tmp35        [V41    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V21._reference (fldOffset=0x0)" P-INDEP
 ;* V42 tmp36        [V42    ] (  0,  0   )     int  ->  zero-ref    "field V21._length (fldOffset=0x8)" P-INDEP
 ;  V43 cse0         [V43,T12] (  3,  1.50)    long  ->  rax         "CSE #01: moderate"
 ;
 ; Lcl frame size = 528
 
 G_M35919_IG01:
        push     rbp
        push     r15
        push     r14
        push     r13
        push     rbx
        sub      rsp, 528
        lea      rbp, [rsp+0x230]
-       xor      eax, eax
-       mov      qword ptr [rbp-0x1C8], rax
        vxorps   xmm8, xmm8, xmm8
-       vmovdqa32 xmmword ptr [rbp-0x1C0], xmm8
-       vmovdqa32 xmmword ptr [rbp-0x1B0], xmm8
-       mov      rax, -384
+       vmovdqa32 xmmword ptr [rbp-0x1F0], xmm8
+       vmovdqa32 xmmword ptr [rbp-0x1E0], xmm8
+       mov      rax, -432
        vmovdqa  xmmword ptr [rbp+rax-0x20], xmm8
        vmovdqa  xmmword ptr [rbp+rax-0x10], xmm8
        vmovdqa  xmmword ptr [rax+rbp], xmm8
        add      rax, 48
        jne      SHORT  -5 instr
        mov      r15, rdi
        mov      rbx, rsi
-						;; size=90 bbWeight=1 PerfScore 14.33
+						;; size=81 bbWeight=1 PerfScore 13.08
 G_M35919_IG02:
        test     rbx, rbx
        je       G_M35919_IG08
        mov      rdi, rdx
        mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.JsonSerializer:GetTypeInfo[System.Numerics.Vector`1[float]](System.Text.Json.JsonSerializerOptions):System.Text.Json.Serialization.Metadata.JsonTypeInfo`1[System.Numerics.Vector`1[float]]
        call     [rax]System.Text.Json.JsonSerializer:GetTypeInfo[System.Numerics.Vector`1[float]](System.Text.Json.JsonSerializerOptions):System.Text.Json.Serialization.Metadata.JsonTypeInfo`1[System.Numerics.Vector`1[float]]
        mov      r14, rax
        mov      rdi, rbx
        xor      esi, esi
        mov      edx, 1
        mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.JsonDocument:GetRawValue(int,bool):System.ReadOnlyMemory`1[byte]:this
        call     [rax]System.Text.Json.JsonDocument:GetRawValue(int,bool):System.ReadOnlyMemory`1[byte]:this
        mov      gword ptr [rbp-0x30], rax
        mov      qword ptr [rbp-0x28], rdx
        xor      rbx, rbx
        xor      r13d, r13d
        cmp      gword ptr [rbp-0x30], 0
        je       SHORT G_M35919_IG06
 						;; size=69 bbWeight=1 PerfScore 13.50
 G_M35919_IG03:
        mov      rdi, gword ptr [rbp-0x30]
        mov      rax, qword ptr [rdi]
        mov      rdi, rax
        test     dword ptr [rdi], 0xD1FFAB1E
        jne      SHORT G_M35919_IG04
        mov      rdi, gword ptr [rbp-0x30]
        mov      rax, qword ptr [rax+0x40]
        call     [rax+0x28]System.Buffers.MemoryManager`1[byte]:GetSpan():System.Span`1[byte]:this
        mov      rbx, rax
        mov      r13d, edx
        jmp      SHORT G_M35919_IG05
 						;; size=37 bbWeight=0.50 PerfScore 7.38
 G_M35919_IG04:
        mov      rbx, gword ptr [rbp-0x30]
        add      rbx, 16
        mov      rdi, gword ptr [rbp-0x30]
        mov      r13d, dword ptr [rdi+0x08]
 						;; size=16 bbWeight=0.50 PerfScore 2.12
 G_M35919_IG05:
        mov      edi, dword ptr [rbp-0x28]
        and      edi, 0xD1FFAB1E
        mov      eax, dword ptr [rbp-0x24]
        add      rax, rdi
        mov      ecx, r13d
        cmp      rax, rcx
        ja       G_M35919_IG09
        add      rbx, rdi
        mov      r13d, dword ptr [rbp-0x24]
 						;; size=34 bbWeight=0.50 PerfScore 2.62
 G_M35919_IG06:
        mov      rdi, gword ptr [r14+0xB8]
        mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.JsonSerializerOptions:GetReaderOptions():System.Text.Json.JsonReaderOptions:this
        cmp      dword ptr [rdi], edi
        call     [rax]System.Text.Json.JsonSerializerOptions:GetReaderOptions():System.Text.Json.JsonReaderOptions:this
        mov      qword ptr [rbp-0x50], rax
        vxorps   xmm0, xmm0, xmm0
        vmovdqu  xmmword ptr [rbp-0x48], xmm0
        vmovdqu  xmmword ptr [rbp-0x40], xmm0
        lea      rdi, [rsp]
        lea      rsi, [rbp-0x68]
        mov      ecx, 4
        rep movsq 
        mov      rcx, gword ptr [rsi]
        mov      gword ptr [rsp+0x20], rcx
        add      rsi, 8
        add      rdi, 8
        movsq    
        movsq    
        mov      rsi, rbx
        mov      edx, r13d
        lea      rdi, [rbp-0x128]
        mov      ecx, 1
        mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.Utf8JsonReader:.ctor(System.ReadOnlySpan`1[byte],bool,System.Text.Json.JsonReaderState):this
        call     [rax]System.Text.Json.Utf8JsonReader:.ctor(System.ReadOnlySpan`1[byte],bool,System.Text.Json.JsonReaderState):this
        vxorps   ymm0, ymm0, ymm0
        vmovdqu32 zmmword ptr [rbp-0x1C8], zmm0
        vmovdqu32 zmmword ptr [rbp-0x188], zmm0
        vmovdqu  ymmword ptr [rbp-0x148], ymm0
        lea      rdi, [rbp-0x1C8]
        mov      rsi, r14
        xor      edx, edx
        mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.ReadStack:Initialize(System.Text.Json.Serialization.Metadata.JsonTypeInfo,bool):this
        call     [rax]System.Text.Json.ReadStack:Initialize(System.Text.Json.Serialization.Metadata.JsonTypeInfo,bool):this
        mov      rdi, gword ptr [r14+0x160]
        mov      rcx, gword ptr [r14+0xB8]
        lea      rdx, [rbp-0x1F0]
        lea      rsi, [rbp-0x128]
        lea      r8, [rbp-0x1C8]
        mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.Serialization.JsonConverter`1[System.Numerics.Vector`1[float]]:ReadCore(byref,byref,System.Text.Json.JsonSerializerOptions,byref):bool:this
        cmp      dword ptr [rdi], edi
        call     [rax]System.Text.Json.Serialization.JsonConverter`1[System.Numerics.Vector`1[float]]:ReadCore(byref,byref,System.Text.Json.JsonSerializerOptions,byref):bool:this
        vmovups  ymm0, ymmword ptr [rbp-0x1F0]
        vmovups  ymmword ptr [r15], ymm0
        mov      rax, r15
 						;; size=226 bbWeight=1 PerfScore 68.42
 G_M35919_IG07:
        vzeroupper 
        add      rsp, 528
        pop      rbx
        pop      r13
        pop      r14
        pop      r15
        pop      rbp
        ret      
 						;; size=19 bbWeight=1 PerfScore 4.75
 G_M35919_IG08:
        mov      rdi, 0xD1FFAB1E      ; 'document'
        mov      rax, 0xD1FFAB1E      ; code for System.ArgumentNullException:Throw(System.String)
        call     [rax]System.ArgumentNullException:Throw(System.String)
        int3     
 						;; size=23 bbWeight=0 PerfScore 0.00
 G_M35919_IG09:
        mov      rax, 0xD1FFAB1E      ; code for System.ThrowHelper:ThrowArgumentOutOfRangeException()
        call     [rax]System.ThrowHelper:ThrowArgumentOutOfRangeException()
        int3     
 						;; size=13 bbWeight=0 PerfScore 0.00
 
-; Total bytes of code 527, prolog size 84, PerfScore 113.13, instruction count 120, allocated bytes for code 527 (MethodHash=516573b0) for method System.Text.Json.JsonSerializer:Deserialize[System.Numerics.Vector`1[float]](System.Text.Json.JsonDocument,System.Text.Json.JsonSerializerOptions):System.Numerics.Vector`1[float] (FullOpts)
+; Total bytes of code 518, prolog size 75, PerfScore 111.88, instruction count 118, allocated bytes for code 518 (MethodHash=516573b0) for method System.Text.Json.JsonSerializer:Deserialize[System.Numerics.Vector`1[float]](System.Text.Json.JsonDocument,System.Text.Json.JsonSerializerOptions):System.Numerics.Vector`1[float] (FullOpts)
 ; ============================================================

-9 (-1.58 % of base) - System.Text.Json.JsonSerializer:Deserialize[System.Numerics.Vector`1[float]](System.Text.Json.JsonDocument,System.Text.Json.Serialization.Metadata.JsonTypeInfo`1[System.Numerics.Vector`1[float]]):System.Numerics.Vector`1[float]

 ; Assembly listing for method System.Text.Json.JsonSerializer:Deserialize[System.Numerics.Vector`1[float]](System.Text.Json.JsonDocument,System.Text.Json.Serialization.Metadata.JsonTypeInfo`1[System.Numerics.Vector`1[float]]):System.Numerics.Vector`1[float] (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
 ; rbp based frame
 ; partially interruptible
 ; No PGO data
 ; 0 inlinees with PGO data; 12 single block inlinees; 4 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 RetBuf       [V00,T02] (  4,  4   )    long  ->  r14         single-def
 ;  V01 arg0         [V01,T01] (  4,  4   )     ref  ->  r15         class-hnd single-def <System.Text.Json.JsonDocument>
 ;  V02 arg1         [V02,T00] (  9,  8.50)     ref  ->  rbx         class-hnd single-def <System.Text.Json.Serialization.Metadata.JsonTypeInfo`1[System.Numerics.Vector`1[float]]>
-;  V03 loc0         [V03    ] (  9,  5.50)  struct (16) [rbp-0x30]  do-not-enreg[SBRM] multireg-ret multireg-dest must-init ld-addr-op <System.ReadOnlyMemory`1[byte]>
+;  V03 loc0         [V03    ] (  9,  5.50)  struct (16) [rbp-0x30]  do-not-enreg[SBRM] multireg-ret multireg-dest must-init ld-addr-op single-def <System.ReadOnlyMemory`1[byte]>
 ;* V04 loc1         [V04    ] (  0,  0   )  struct ( 8) zero-ref    ld-addr-op <System.Nullable`1[int]>
 ;  V05 OutArgs      [V05    ] (  1,  1   )  struct (56) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <UNNAMED>
 ;* V06 tmp1         [V06    ] (  0,  0   )  struct (16) zero-ref    "impAppendStmt" <System.ReadOnlySpan`1[byte]>
 ;* V07 tmp2         [V07    ] (  0,  0   )  struct (16) zero-ref    do-not-enreg[SRM] multireg-ret multireg-dest "Return value temp for multireg return" <System.ReadOnlyMemory`1[byte]>
 ;  V08 tmp3         [V08,T03] (  6,  4   )   byref  ->  r15         "Inline stloc first use temp"
 ;  V09 tmp4         [V09,T05] (  6,  4   )     int  ->  r13         "Inline stloc first use temp"
 ;* V10 tmp5         [V10    ] (  0,  0   )     ref  ->  zero-ref    class-hnd single-def "Inline stloc first use temp" <System.Object>
 ;* V11 tmp6         [V11    ] (  0,  0   )  struct (16) zero-ref    multireg-arg ld-addr-op "NewObj constructor temp" <System.ReadOnlySpan`1[byte]>
 ;* V12 tmp7         [V12    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "updating class info" <System.Buffers.MemoryManager`1[byte]>
 ;* V13 tmp8         [V13    ] (  0,  0   )  struct (16) zero-ref    do-not-enreg[SBRM] multireg-ret multireg-dest "Return value temp for multireg return" <System.Span`1[byte]>
-;* V14 tmp9         [V14    ] (  0,  0   )  struct (16) zero-ref    multireg-ret multireg-dest ld-addr-op "Inline stloc first use temp" <System.Span`1[byte]>
-;  V15 tmp10        [V15,T10] (  3,  1.50)    long  ->  rdi         "Inline stloc first use temp"
-;* V16 tmp11        [V16    ] (  0,  0   )     int  ->  zero-ref    "Inline stloc first use temp"
+;* V14 tmp9         [V14    ] (  0,  0   )  struct (16) zero-ref    multireg-ret multireg-dest ld-addr-op single-def "Inline stloc first use temp" <System.Span`1[byte]>
+;  V15 tmp10        [V15,T10] (  3,  1.50)    long  ->  rdi         single-def "Inline stloc first use temp"
+;* V16 tmp11        [V16    ] (  0,  0   )     int  ->  zero-ref    single-def "Inline stloc first use temp"
 ;* V17 tmp12        [V17    ] (  0,  0   )     ref  ->  zero-ref    class-hnd single-def "updating class info" <byte[]>
 ;* V18 tmp13        [V18    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "updating class info" <byte[]>
 ;  V19 tmp14        [V19,T09] (  2,  2   )   byref  ->  rdi         single-def "Inlining Arg"
 ;* V20 tmp15        [V20    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "Inlining Arg" <System.Span`1[byte]>
 ;  V21 tmp16        [V21,T07] (  3,  3   )  struct (56) [rbp-0x68]  do-not-enreg[SF] must-init ld-addr-op "Inline ldloca(s) first use temp" <System.Text.Json.JsonReaderState>
 ;  V22 tmp17        [V22,T06] (  2,  4   )  struct ( 8) rax         "spilled call-like call argument" <System.Text.Json.JsonReaderOptions>
 ;  V23 tmp18        [V23    ] (  2,  2   )  struct (192) [rbp-0x128]  do-not-enreg[XS] must-init addr-exposed ld-addr-op "Inline ldloca(s) first use temp" <System.Text.Json.Utf8JsonReader>
 ;  V24 tmp19        [V24    ] (  3,  3   )  struct (160) [rbp-0x1C8]  do-not-enreg[XS] must-init addr-exposed ld-addr-op "Inline ldloca(s) first use temp" <System.Text.Json.ReadStack>
-;  V25 tmp20        [V25    ] (  2,  2   )  simd32  ->  [rbp-0x1F0]  do-not-enreg[XS] addr-exposed ld-addr-op "Inline ldloca(s) first use temp" <System.Numerics.Vector`1[float]>
+;  V25 tmp20        [V25    ] (  2,  2   )  simd32  ->  [rbp-0x1F0]  do-not-enreg[XS] must-init addr-exposed ld-addr-op "Inline ldloca(s) first use temp" <System.Numerics.Vector`1[float]>
 ;* V26 tmp21        [V26    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "impAppendStmt" <System.Text.Json.Serialization.JsonConverter`1[System.Numerics.Vector`1[float]]>
 ;  V27 tmp22        [V27,T04] (  6,  4   )     ref  ->  [rbp-0x30]  do-not-enreg[] "field V03._object (fldOffset=0x0)" P-DEP
 ;  V28 tmp23        [V28,T12] (  2,  1.50)     int  ->  [rbp-0x28]  do-not-enreg[] "field V03._index (fldOffset=0x8)" P-DEP
 ;  V29 tmp24        [V29,T08] (  3,  2   )     int  ->  [rbp-0x24]  do-not-enreg[] "field V03._length (fldOffset=0xc)" P-DEP
 ;* V30 tmp25        [V30    ] (  0,  0   )   ubyte  ->  zero-ref    "field V04.hasValue (fldOffset=0x0)" P-INDEP
 ;* V31 tmp26        [V31    ] (  0,  0   )     int  ->  zero-ref    "field V04.value (fldOffset=0x4)" P-INDEP
 ;* V32 tmp27        [V32    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V06._reference (fldOffset=0x0)" P-INDEP
-;* V33 tmp28        [V33    ] (  0,  0   )     int  ->  zero-ref    "field V06._length (fldOffset=0x8)" P-INDEP
+;* V33 tmp28        [V33    ] (  0,  0   )     int  ->  zero-ref    single-def "field V06._length (fldOffset=0x8)" P-INDEP
 ;* V34 tmp29        [V34    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V11._reference (fldOffset=0x0)" P-INDEP
-;* V35 tmp30        [V35    ] (  0,  0   )     int  ->  zero-ref    "field V11._length (fldOffset=0x8)" P-INDEP
+;* V35 tmp30        [V35    ] (  0,  0   )     int  ->  zero-ref    single-def "field V11._length (fldOffset=0x8)" P-INDEP
 ;* V36 tmp31        [V36    ] (  0,  0   )   byref  ->  zero-ref    "field V13._reference (fldOffset=0x0)" P-DEP
 ;* V37 tmp32        [V37    ] (  0,  0   )     int  ->  zero-ref    "field V13._length (fldOffset=0x8)" P-DEP
 ;  V38 tmp33        [V38,T13] (  2,  1   )   byref  ->  r15         "field V14._reference (fldOffset=0x0)" P-INDEP
 ;  V39 tmp34        [V39,T14] (  2,  1   )     int  ->  r13         "field V14._length (fldOffset=0x8)" P-INDEP
 ;* V40 tmp35        [V40    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V20._reference (fldOffset=0x0)" P-INDEP
 ;* V41 tmp36        [V41    ] (  0,  0   )     int  ->  zero-ref    "field V20._length (fldOffset=0x8)" P-INDEP
 ;  V42 cse0         [V42,T11] (  3,  1.50)    long  ->  rax         "CSE #01: moderate"
 ;
 ; Lcl frame size = 528
 
 G_M29530_IG01:
        push     rbp
        push     r15
        push     r14
        push     r13
        push     rbx
        sub      rsp, 528
        lea      rbp, [rsp+0x230]
-       xor      eax, eax
-       mov      qword ptr [rbp-0x1C8], rax
        vxorps   xmm8, xmm8, xmm8
-       vmovdqa32 xmmword ptr [rbp-0x1C0], xmm8
-       vmovdqa32 xmmword ptr [rbp-0x1B0], xmm8
-       mov      rax, -384
+       vmovdqa32 xmmword ptr [rbp-0x1F0], xmm8
+       vmovdqa32 xmmword ptr [rbp-0x1E0], xmm8
+       mov      rax, -432
        vmovdqa  xmmword ptr [rbp+rax-0x20], xmm8
        vmovdqa  xmmword ptr [rbp+rax-0x10], xmm8
        vmovdqa  xmmword ptr [rax+rbp], xmm8
        add      rax, 48
        jne      SHORT  -5 instr
        mov      r14, rdi
        mov      r15, rsi
        mov      rbx, rdx
-						;; size=93 bbWeight=1 PerfScore 14.58
+						;; size=84 bbWeight=1 PerfScore 13.33
 G_M29530_IG02:
        test     r15, r15
        je       G_M29530_IG10
        test     rbx, rbx
        je       G_M29530_IG11
        cmp      byte  ptr [rbx+0x119], 2
        je       SHORT G_M29530_IG04
 						;; size=27 bbWeight=1 PerfScore 5.50
 G_M29530_IG03:
        mov      rdi, rbx
        mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.Serialization.Metadata.JsonTypeInfo:<EnsureConfigured>g__ConfigureSynchronized|174_0():this
        call     [rax]System.Text.Json.Serialization.Metadata.JsonTypeInfo:<EnsureConfigured>g__ConfigureSynchronized|174_0():this
 						;; size=15 bbWeight=0.50 PerfScore 1.75
 G_M29530_IG04:
        mov      rdi, r15
        xor      esi, esi
        mov      edx, 1
        mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.JsonDocument:GetRawValue(int,bool):System.ReadOnlyMemory`1[byte]:this
        call     [rax]System.Text.Json.JsonDocument:GetRawValue(int,bool):System.ReadOnlyMemory`1[byte]:this
        mov      gword ptr [rbp-0x30], rax
        mov      qword ptr [rbp-0x28], rdx
        xor      r15, r15
        xor      r13d, r13d
        cmp      gword ptr [rbp-0x30], 0
        je       SHORT G_M29530_IG08
 						;; size=43 bbWeight=1 PerfScore 8.50
 G_M29530_IG05:
        mov      rdi, gword ptr [rbp-0x30]
        mov      rax, qword ptr [rdi]
        mov      rdi, rax
        test     dword ptr [rdi], 0xD1FFAB1E
        jne      SHORT G_M29530_IG06
        mov      rdi, gword ptr [rbp-0x30]
        mov      rax, qword ptr [rax+0x40]
        call     [rax+0x28]System.Buffers.MemoryManager`1[byte]:GetSpan():System.Span`1[byte]:this
        mov      r15, rax
        mov      r13d, edx
        jmp      SHORT G_M29530_IG07
 						;; size=37 bbWeight=0.50 PerfScore 7.38
 G_M29530_IG06:
        mov      r15, gword ptr [rbp-0x30]
        add      r15, 16
        mov      rdi, gword ptr [rbp-0x30]
        mov      r13d, dword ptr [rdi+0x08]
 						;; size=16 bbWeight=0.50 PerfScore 2.12
 G_M29530_IG07:
        mov      edi, dword ptr [rbp-0x28]
        and      edi, 0xD1FFAB1E
        mov      eax, dword ptr [rbp-0x24]
        add      rax, rdi
        mov      ecx, r13d
        cmp      rax, rcx
        ja       G_M29530_IG12
        add      r15, rdi
        mov      r13d, dword ptr [rbp-0x24]
 						;; size=34 bbWeight=0.50 PerfScore 2.62
 G_M29530_IG08:
        mov      rdi, gword ptr [rbx+0xB8]
        mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.JsonSerializerOptions:GetReaderOptions():System.Text.Json.JsonReaderOptions:this
        cmp      dword ptr [rdi], edi
        call     [rax]System.Text.Json.JsonSerializerOptions:GetReaderOptions():System.Text.Json.JsonReaderOptions:this
        mov      qword ptr [rbp-0x50], rax
        vxorps   xmm0, xmm0, xmm0
        vmovdqu  xmmword ptr [rbp-0x48], xmm0
        vmovdqu  xmmword ptr [rbp-0x40], xmm0
        lea      rdi, [rsp]
        lea      rsi, [rbp-0x68]
        mov      ecx, 4
        rep movsq 
        mov      rcx, gword ptr [rsi]
        mov      gword ptr [rsp+0x20], rcx
        add      rsi, 8
        add      rdi, 8
        movsq    
        movsq    
        mov      rsi, r15
        mov      edx, r13d
        lea      rdi, [rbp-0x128]
        mov      ecx, 1
        mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.Utf8JsonReader:.ctor(System.ReadOnlySpan`1[byte],bool,System.Text.Json.JsonReaderState):this
        call     [rax]System.Text.Json.Utf8JsonReader:.ctor(System.ReadOnlySpan`1[byte],bool,System.Text.Json.JsonReaderState):this
        vxorps   ymm0, ymm0, ymm0
        vmovdqu32 zmmword ptr [rbp-0x1C8], zmm0
        vmovdqu32 zmmword ptr [rbp-0x188], zmm0
        vmovdqu  ymmword ptr [rbp-0x148], ymm0
        lea      rdi, [rbp-0x1C8]
        mov      rsi, rbx
        xor      edx, edx
        mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.ReadStack:Initialize(System.Text.Json.Serialization.Metadata.JsonTypeInfo,bool):this
        call     [rax]System.Text.Json.ReadStack:Initialize(System.Text.Json.Serialization.Metadata.JsonTypeInfo,bool):this
        mov      rdi, gword ptr [rbx+0x160]
        mov      rcx, gword ptr [rbx+0xB8]
        lea      rdx, [rbp-0x1F0]
        lea      rsi, [rbp-0x128]
        lea      r8, [rbp-0x1C8]
        mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.Serialization.JsonConverter`1[System.Numerics.Vector`1[float]]:ReadCore(byref,byref,System.Text.Json.JsonSerializerOptions,byref):bool:this
        cmp      dword ptr [rdi], edi
        call     [rax]System.Text.Json.Serialization.JsonConverter`1[System.Numerics.Vector`1[float]]:ReadCore(byref,byref,System.Text.Json.JsonSerializerOptions,byref):bool:this
        vmovups  ymm0, ymmword ptr [rbp-0x1F0]
        vmovups  ymmword ptr [r14], ymm0
        mov      rax, r14
 						;; size=226 bbWeight=1 PerfScore 68.42
 G_M29530_IG09:
        vzeroupper 
        add      rsp, 528
        pop      rbx
        pop      r13
        pop      r14
        pop      r15
        pop      rbp
        ret      
 						;; size=19 bbWeight=1 PerfScore 4.75
 G_M29530_IG10:
        mov      rdi, 0xD1FFAB1E      ; 'document'
        mov      rax, 0xD1FFAB1E      ; code for System.ArgumentNullException:Throw(System.String)
        call     [rax]System.ArgumentNullException:Throw(System.String)
        int3     
 						;; size=23 bbWeight=0 PerfScore 0.00
 G_M29530_IG11:
        mov      rdi, 0xD1FFAB1E      ; 'jsonTypeInfo'
        mov      rax, 0xD1FFAB1E      ; code for System.ArgumentNullException:Throw(System.String)
        call     [rax]System.ArgumentNullException:Throw(System.String)
        int3     
 						;; size=23 bbWeight=0 PerfScore 0.00
 G_M29530_IG12:
        mov      rax, 0xD1FFAB1E      ; code for System.ThrowHelper:ThrowArgumentOutOfRangeException()
        call     [rax]System.ThrowHelper:ThrowArgumentOutOfRangeException()
        int3     
 						;; size=13 bbWeight=0 PerfScore 0.00
 
-; Total bytes of code 569, prolog size 84, PerfScore 115.63, instruction count 128, allocated bytes for code 569 (MethodHash=77bb8ca5) for method System.Text.Json.JsonSerializer:Deserialize[System.Numerics.Vector`1[float]](System.Text.Json.JsonDocument,System.Text.Json.Serialization.Metadata.JsonTypeInfo`1[System.Numerics.Vector`1[float]]):System.Numerics.Vector`1[float] (FullOpts)
+; Total bytes of code 560, prolog size 75, PerfScore 114.38, instruction count 126, allocated bytes for code 560 (MethodHash=77bb8ca5) for method System.Text.Json.JsonSerializer:Deserialize[System.Numerics.Vector`1[float]](System.Text.Json.JsonDocument,System.Text.Json.Serialization.Metadata.JsonTypeInfo`1[System.Numerics.Vector`1[float]]):System.Numerics.Vector`1[float] (FullOpts)
 ; ============================================================

-9 (-1.64 % of base) - System.Text.Json.JsonSerializer:Deserialize[System.Numerics.Vector`1[float]](System.Text.Json.JsonElement,System.Text.Json.JsonSerializerOptions):System.Numerics.Vector`1[float]

 ; Assembly listing for method System.Text.Json.JsonSerializer:Deserialize[System.Numerics.Vector`1[float]](System.Text.Json.JsonElement,System.Text.Json.JsonSerializerOptions):System.Numerics.Vector`1[float] (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
 ; rbp based frame
 ; partially interruptible
 ; No PGO data
 ; 0 inlinees with PGO data; 11 single block inlinees; 2 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 RetBuf       [V00,T00] (  4,  4   )    long  ->  rbx         single-def
 ;* V01 arg0         [V01    ] (  0,  0   )  struct (16) zero-ref    multireg-arg ld-addr-op single-def <System.Text.Json.JsonElement>
 ;  V02 arg1         [V02,T02] (  3,  3   )     ref  ->  rcx         class-hnd single-def <System.Text.Json.JsonSerializerOptions>
 ;  V03 loc0         [V03,T01] (  5,  5   )     ref  ->  r13         class-hnd exact single-def <System.Text.Json.Serialization.Metadata.JsonTypeInfo`1[System.Numerics.Vector`1[float]]>
-;  V04 loc1         [V04    ] (  9,  5.50)  struct (16) [rbp-0x30]  do-not-enreg[SBRM] multireg-ret multireg-dest must-init ld-addr-op <System.ReadOnlyMemory`1[byte]>
+;  V04 loc1         [V04    ] (  9,  5.50)  struct (16) [rbp-0x30]  do-not-enreg[SBRM] multireg-ret multireg-dest must-init ld-addr-op single-def <System.ReadOnlyMemory`1[byte]>
 ;* V05 loc2         [V05    ] (  0,  0   )  struct ( 8) zero-ref    ld-addr-op <System.Nullable`1[int]>
 ;  V06 OutArgs      [V06    ] (  1,  1   )  struct (56) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <UNNAMED>
 ;* V07 tmp1         [V07    ] (  0,  0   )  struct (16) zero-ref    "impAppendStmt" <System.ReadOnlySpan`1[byte]>
 ;* V08 tmp2         [V08    ] (  0,  0   )  struct (16) zero-ref    do-not-enreg[SRM] multireg-ret multireg-dest "Return value temp for multireg return" <System.ReadOnlyMemory`1[byte]>
 ;  V09 tmp3         [V09,T17] (  3,  0   )     ref  ->  rbx         class-hnd exact single-def "NewObj constructor temp" <System.InvalidOperationException>
 ;  V10 tmp4         [V10,T04] (  6,  4   )   byref  ->  r15         "Inline stloc first use temp"
 ;  V11 tmp5         [V11,T06] (  6,  4   )     int  ->  r14         "Inline stloc first use temp"
 ;* V12 tmp6         [V12    ] (  0,  0   )     ref  ->  zero-ref    class-hnd single-def "Inline stloc first use temp" <System.Object>
 ;* V13 tmp7         [V13    ] (  0,  0   )  struct (16) zero-ref    multireg-arg ld-addr-op "NewObj constructor temp" <System.ReadOnlySpan`1[byte]>
 ;* V14 tmp8         [V14    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "updating class info" <System.Buffers.MemoryManager`1[byte]>
 ;* V15 tmp9         [V15    ] (  0,  0   )  struct (16) zero-ref    do-not-enreg[SBRM] multireg-ret multireg-dest "Return value temp for multireg return" <System.Span`1[byte]>
-;* V16 tmp10        [V16    ] (  0,  0   )  struct (16) zero-ref    multireg-ret multireg-dest ld-addr-op "Inline stloc first use temp" <System.Span`1[byte]>
-;  V17 tmp11        [V17,T12] (  3,  1.50)    long  ->  rdi         "Inline stloc first use temp"
-;* V18 tmp12        [V18    ] (  0,  0   )     int  ->  zero-ref    "Inline stloc first use temp"
+;* V16 tmp10        [V16    ] (  0,  0   )  struct (16) zero-ref    multireg-ret multireg-dest ld-addr-op single-def "Inline stloc first use temp" <System.Span`1[byte]>
+;  V17 tmp11        [V17,T12] (  3,  1.50)    long  ->  rdi         single-def "Inline stloc first use temp"
+;* V18 tmp12        [V18    ] (  0,  0   )     int  ->  zero-ref    single-def "Inline stloc first use temp"
 ;* V19 tmp13        [V19    ] (  0,  0   )     ref  ->  zero-ref    class-hnd single-def "updating class info" <byte[]>
 ;* V20 tmp14        [V20    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "updating class info" <byte[]>
 ;  V21 tmp15        [V21,T11] (  2,  2   )   byref  ->  rdi         single-def "Inlining Arg"
 ;* V22 tmp16        [V22    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "Inlining Arg" <System.Span`1[byte]>
 ;  V23 tmp17        [V23,T09] (  3,  3   )  struct (56) [rbp-0x68]  do-not-enreg[SF] must-init ld-addr-op "Inline ldloca(s) first use temp" <System.Text.Json.JsonReaderState>
 ;  V24 tmp18        [V24,T07] (  2,  4   )  struct ( 8) rax         "spilled call-like call argument" <System.Text.Json.JsonReaderOptions>
 ;  V25 tmp19        [V25    ] (  2,  2   )  struct (192) [rbp-0x128]  do-not-enreg[XS] must-init addr-exposed ld-addr-op "Inline ldloca(s) first use temp" <System.Text.Json.Utf8JsonReader>
 ;  V26 tmp20        [V26    ] (  3,  3   )  struct (160) [rbp-0x1C8]  do-not-enreg[XS] must-init addr-exposed ld-addr-op "Inline ldloca(s) first use temp" <System.Text.Json.ReadStack>
-;  V27 tmp21        [V27    ] (  2,  2   )  simd32  ->  [rbp-0x1F0]  do-not-enreg[XS] addr-exposed ld-addr-op "Inline ldloca(s) first use temp" <System.Numerics.Vector`1[float]>
+;  V27 tmp21        [V27    ] (  2,  2   )  simd32  ->  [rbp-0x1F0]  do-not-enreg[XS] must-init addr-exposed ld-addr-op "Inline ldloca(s) first use temp" <System.Numerics.Vector`1[float]>
 ;* V28 tmp22        [V28    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "impAppendStmt" <System.Text.Json.Serialization.JsonConverter`1[System.Numerics.Vector`1[float]]>
 ;  V29 tmp23        [V29,T03] (  3,  3   )     ref  ->  r15         single-def "field V01._parent (fldOffset=0x0)" P-INDEP
 ;  V30 tmp24        [V30,T08] (  2,  2   )     int  ->  r14         single-def "field V01._idx (fldOffset=0x8)" P-INDEP
 ;  V31 tmp25        [V31,T05] (  6,  4   )     ref  ->  [rbp-0x30]  do-not-enreg[] "field V04._object (fldOffset=0x0)" P-DEP
 ;  V32 tmp26        [V32,T14] (  2,  1.50)     int  ->  [rbp-0x28]  do-not-enreg[] "field V04._index (fldOffset=0x8)" P-DEP
 ;  V33 tmp27        [V33,T10] (  3,  2   )     int  ->  [rbp-0x24]  do-not-enreg[] "field V04._length (fldOffset=0xc)" P-DEP
 ;* V34 tmp28        [V34    ] (  0,  0   )   ubyte  ->  zero-ref    "field V05.hasValue (fldOffset=0x0)" P-INDEP
 ;* V35 tmp29        [V35    ] (  0,  0   )     int  ->  zero-ref    "field V05.value (fldOffset=0x4)" P-INDEP
 ;* V36 tmp30        [V36    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V07._reference (fldOffset=0x0)" P-INDEP
-;* V37 tmp31        [V37    ] (  0,  0   )     int  ->  zero-ref    "field V07._length (fldOffset=0x8)" P-INDEP
+;* V37 tmp31        [V37    ] (  0,  0   )     int  ->  zero-ref    single-def "field V07._length (fldOffset=0x8)" P-INDEP
 ;* V38 tmp32        [V38    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V13._reference (fldOffset=0x0)" P-INDEP
-;* V39 tmp33        [V39    ] (  0,  0   )     int  ->  zero-ref    "field V13._length (fldOffset=0x8)" P-INDEP
+;* V39 tmp33        [V39    ] (  0,  0   )     int  ->  zero-ref    single-def "field V13._length (fldOffset=0x8)" P-INDEP
 ;* V40 tmp34        [V40    ] (  0,  0   )   byref  ->  zero-ref    "field V15._reference (fldOffset=0x0)" P-DEP
 ;* V41 tmp35        [V41    ] (  0,  0   )     int  ->  zero-ref    "field V15._length (fldOffset=0x8)" P-DEP
 ;  V42 tmp36        [V42,T15] (  2,  1   )   byref  ->  r15         "field V16._reference (fldOffset=0x0)" P-INDEP
 ;  V43 tmp37        [V43,T16] (  2,  1   )     int  ->  r14         "field V16._length (fldOffset=0x8)" P-INDEP
 ;* V44 tmp38        [V44    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V22._reference (fldOffset=0x0)" P-INDEP
 ;* V45 tmp39        [V45    ] (  0,  0   )     int  ->  zero-ref    "field V22._length (fldOffset=0x8)" P-INDEP
 ;  V46 cse0         [V46,T13] (  3,  1.50)    long  ->  rax         "CSE #01: moderate"
 ;
 ; Lcl frame size = 528
 
 G_M30206_IG01:
        push     rbp
        push     r15
        push     r14
        push     r13
        push     rbx
        sub      rsp, 528
        lea      rbp, [rsp+0x230]
-       xor      eax, eax
-       mov      qword ptr [rbp-0x1C8], rax
        vxorps   xmm8, xmm8, xmm8
-       vmovdqa32 xmmword ptr [rbp-0x1C0], xmm8
-       vmovdqa32 xmmword ptr [rbp-0x1B0], xmm8
-       mov      rax, -384
+       vmovdqa32 xmmword ptr [rbp-0x1F0], xmm8
+       vmovdqa32 xmmword ptr [rbp-0x1E0], xmm8
+       mov      rax, -432
        vmovdqa  xmmword ptr [rbp+rax-0x20], xmm8
        vmovdqa  xmmword ptr [rbp+rax-0x10], xmm8
        vmovdqa  xmmword ptr [rax+rbp], xmm8
        add      rax, 48
        jne      SHORT  -5 instr
        mov      rbx, rdi
        mov      r15, rsi
        mov      r14d, edx
-						;; size=93 bbWeight=1 PerfScore 14.58
+						;; size=84 bbWeight=1 PerfScore 13.33
 G_M30206_IG02:
        mov      rdi, rcx
        mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.JsonSerializer:GetTypeInfo[System.Numerics.Vector`1[float]](System.Text.Json.JsonSerializerOptions):System.Text.Json.Serialization.Metadata.JsonTypeInfo`1[System.Numerics.Vector`1[float]]
        call     [rax]System.Text.Json.JsonSerializer:GetTypeInfo[System.Numerics.Vector`1[float]](System.Text.Json.JsonSerializerOptions):System.Text.Json.Serialization.Metadata.JsonTypeInfo`1[System.Numerics.Vector`1[float]]
        mov      r13, rax
        test     r15, r15
        je       G_M30206_IG08
        mov      rdi, r15
        mov      esi, r14d
        mov      edx, 1
        mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.JsonDocument:GetRawValue(int,bool):System.ReadOnlyMemory`1[byte]:this
        call     [rax]System.Text.Json.JsonDocument:GetRawValue(int,bool):System.ReadOnlyMemory`1[byte]:this
        mov      gword ptr [rbp-0x30], rax
        mov      qword ptr [rbp-0x28], rdx
        xor      r15, r15
        xor      r14d, r14d
        cmp      gword ptr [rbp-0x30], 0
        je       SHORT G_M30206_IG06
 						;; size=71 bbWeight=1 PerfScore 13.50
 G_M30206_IG03:
        mov      rdi, gword ptr [rbp-0x30]
        mov      rax, qword ptr [rdi]
        mov      rdi, rax
        test     dword ptr [rdi], 0xD1FFAB1E
        jne      SHORT G_M30206_IG04
        mov      rdi, gword ptr [rbp-0x30]
        mov      rax, qword ptr [rax+0x40]
        call     [rax+0x28]System.Buffers.MemoryManager`1[byte]:GetSpan():System.Span`1[byte]:this
        mov      r15, rax
        mov      r14d, edx
        jmp      SHORT G_M30206_IG05
 						;; size=37 bbWeight=0.50 PerfScore 7.38
 G_M30206_IG04:
        mov      r15, gword ptr [rbp-0x30]
        add      r15, 16
        mov      rdi, gword ptr [rbp-0x30]
        mov      r14d, dword ptr [rdi+0x08]
 						;; size=16 bbWeight=0.50 PerfScore 2.12
 G_M30206_IG05:
        mov      edi, dword ptr [rbp-0x28]
        and      edi, 0xD1FFAB1E
        mov      eax, dword ptr [rbp-0x24]
        add      rax, rdi
        mov      ecx, r14d
        cmp      rax, rcx
        ja       G_M30206_IG09
        add      r15, rdi
        mov      r14d, dword ptr [rbp-0x24]
 						;; size=34 bbWeight=0.50 PerfScore 2.62
 G_M30206_IG06:
        mov      rdi, gword ptr [r13+0xB8]
        mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.JsonSerializerOptions:GetReaderOptions():System.Text.Json.JsonReaderOptions:this
        cmp      dword ptr [rdi], edi
        call     [rax]System.Text.Json.JsonSerializerOptions:GetReaderOptions():System.Text.Json.JsonReaderOptions:this
        mov      qword ptr [rbp-0x50], rax
        vxorps   xmm0, xmm0, xmm0
        vmovdqu  xmmword ptr [rbp-0x48], xmm0
        vmovdqu  xmmword ptr [rbp-0x40], xmm0
        lea      rdi, [rsp]
        lea      rsi, [rbp-0x68]
        mov      ecx, 4
        rep movsq 
        mov      rcx, gword ptr [rsi]
        mov      gword ptr [rsp+0x20], rcx
        add      rsi, 8
        add      rdi, 8
        movsq    
        movsq    
        mov      rsi, r15
        mov      edx, r14d
        lea      rdi, [rbp-0x128]
        mov      ecx, 1
        mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.Utf8JsonReader:.ctor(System.ReadOnlySpan`1[byte],bool,System.Text.Json.JsonReaderState):this
        call     [rax]System.Text.Json.Utf8JsonReader:.ctor(System.ReadOnlySpan`1[byte],bool,System.Text.Json.JsonReaderState):this
        vxorps   ymm0, ymm0, ymm0
        vmovdqu32 zmmword ptr [rbp-0x1C8], zmm0
        vmovdqu32 zmmword ptr [rbp-0x188], zmm0
        vmovdqu  ymmword ptr [rbp-0x148], ymm0
        lea      rdi, [rbp-0x1C8]
        mov      rsi, r13
        xor      edx, edx
        mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.ReadStack:Initialize(System.Text.Json.Serialization.Metadata.JsonTypeInfo,bool):this
        call     [rax]System.Text.Json.ReadStack:Initialize(System.Text.Json.Serialization.Metadata.JsonTypeInfo,bool):this
        mov      rdi, gword ptr [r13+0x160]
        mov      rcx, gword ptr [r13+0xB8]
        lea      rdx, [rbp-0x1F0]
        lea      rsi, [rbp-0x128]
        lea      r8, [rbp-0x1C8]
        mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.Serialization.JsonConverter`1[System.Numerics.Vector`1[float]]:ReadCore(byref,byref,System.Text.Json.JsonSerializerOptions,byref):bool:this
        cmp      dword ptr [rdi], edi
        call     [rax]System.Text.Json.Serialization.JsonConverter`1[System.Numerics.Vector`1[float]]:ReadCore(byref,byref,System.Text.Json.JsonSerializerOptions,byref):bool:this
        vmovups  ymm0, ymmword ptr [rbp-0x1F0]
        vmovups  ymmword ptr [rbx], ymm0
        mov      rax, rbx
 						;; size=225 bbWeight=1 PerfScore 68.42
 G_M30206_IG07:
        vzeroupper 
        add      rsp, 528
        pop      rbx
        pop      r13
        pop      r14
        pop      r15
        pop      rbp
        ret      
 						;; size=19 bbWeight=1 PerfScore 4.75
 G_M30206_IG08:
        mov      rdi, 0xD1FFAB1E      ; System.InvalidOperationException
        call     CORINFO_HELP_NEWSFAST
        mov      rbx, rax
        mov      rdi, rbx
        mov      rax, 0xD1FFAB1E      ; code for System.InvalidOperationException:.ctor():this
        call     [rax]System.InvalidOperationException:.ctor():this
        mov      rdi, rbx
        call     CORINFO_HELP_THROW
        int3     
 						;; size=42 bbWeight=0 PerfScore 0.00
 G_M30206_IG09:
        mov      rax, 0xD1FFAB1E      ; code for System.ThrowHelper:ThrowArgumentOutOfRangeException()
        call     [rax]System.ThrowHelper:ThrowArgumentOutOfRangeException()
        int3     
 						;; size=13 bbWeight=0 PerfScore 0.00
 
-; Total bytes of code 550, prolog size 84, PerfScore 113.38, instruction count 126, allocated bytes for code 550 (MethodHash=000d8a01) for method System.Text.Json.JsonSerializer:Deserialize[System.Numerics.Vector`1[float]](System.Text.Json.JsonElement,System.Text.Json.JsonSerializerOptions):System.Numerics.Vector`1[float] (FullOpts)
+; Total bytes of code 541, prolog size 75, PerfScore 112.13, instruction count 124, allocated bytes for code 541 (MethodHash=000d8a01) for method System.Text.Json.JsonSerializer:Deserialize[System.Numerics.Vector`1[float]](System.Text.Json.JsonElement,System.Text.Json.JsonSerializerOptions):System.Numerics.Vector`1[float] (FullOpts)
 ; ============================================================

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

Larger list of diffs: https://gist.github.com/MihuBot/a292efc44100032d61a6bd3e9187d800

[MihuBot]

@EgorBo