[JitDiff X64] [EgorBo] Revert potential UB due to aliasing + more WB removals

[MihuBot]

Job completed in 14 minutes 14 seconds.
dotnet/runtime#111733

Diffs

Diffs

Found 265 files with textual diffs.

Summary of Code Size diffs:
(Lower is better)

Total bytes of base: 40347013
Total bytes of diff: 40346905
Total bytes of delta: -108 (-0.00 % of base)
Total relative delta: -0.38
    diff is an improvement.
    relative diff is an improvement.


Top file regressions (bytes):
         724 : System.Memory.dasm (0.25 % of base)
          44 : System.Private.CoreLib.dasm (0.00 % of base)
          40 : System.Text.Json.dasm (0.00 % of base)

Top file improvements (bytes):
        -700 : System.Numerics.Tensors.dasm (-0.04 % of base)
        -216 : System.DirectoryServices.Protocols.dasm (-0.14 % of base)

5 total files with Code Size differences (2 improved, 3 regressed), 254 unchanged.

Top method regressions (bytes):
          99 (5.43 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:.ctor(System.Buffers.ReadOnlySequence`1[ubyte],ubyte,System.Text.Json.JsonReaderState):this (FullOpts)
          54 (7.68 % of base) : System.Memory.dasm - System.Buffers.SequenceReader`1[double]:GetNextSpan():this (FullOpts)
          54 (7.68 % of base) : System.Memory.dasm - System.Buffers.SequenceReader`1[int]:GetNextSpan():this (FullOpts)
          54 (7.68 % of base) : System.Memory.dasm - System.Buffers.SequenceReader`1[long]:GetNextSpan():this (FullOpts)
          54 (7.68 % of base) : System.Memory.dasm - System.Buffers.SequenceReader`1[short]:GetNextSpan():this (FullOpts)
          53 (7.48 % of base) : System.Memory.dasm - System.Buffers.SequenceReader`1[System.Numerics.Vector`1[float]]:GetNextSpan():this (FullOpts)
          53 (7.52 % of base) : System.Memory.dasm - System.Buffers.SequenceReader`1[ubyte]:GetNextSpan():this (FullOpts)
          44 (133.33 % of base) : System.Private.CoreLib.dasm - System.Reflection.MethodBase+StackAllocatedArguments:.ctor(System.Object,System.Object,System.Object,System.Object):this (FullOpts)
          40 (6.93 % of base) : System.Memory.dasm - System.Buffers.SequenceReader`1[double]:.ctor(System.Buffers.ReadOnlySequence`1[double]):this (FullOpts)
          40 (6.93 % of base) : System.Memory.dasm - System.Buffers.SequenceReader`1[int]:.ctor(System.Buffers.ReadOnlySequence`1[int]):this (FullOpts)
          40 (6.93 % of base) : System.Memory.dasm - System.Buffers.SequenceReader`1[long]:.ctor(System.Buffers.ReadOnlySequence`1[long]):this (FullOpts)
          40 (6.93 % of base) : System.Memory.dasm - System.Buffers.SequenceReader`1[short]:.ctor(System.Buffers.ReadOnlySequence`1[short]):this (FullOpts)
          40 (6.73 % of base) : System.Memory.dasm - System.Buffers.SequenceReader`1[System.Numerics.Vector`1[float]]:.ctor(System.Buffers.ReadOnlySequence`1[System.Numerics.Vector`1[float]]):this (FullOpts)
          40 (6.97 % of base) : System.Memory.dasm - System.Buffers.SequenceReader`1[ubyte]:.ctor(System.Buffers.ReadOnlySequence`1[ubyte]):this (FullOpts)
          27 (3.91 % of base) : System.Memory.dasm - System.Buffers.SequenceReader`1[double]:ResetReader():this (FullOpts)
          27 (3.91 % of base) : System.Memory.dasm - System.Buffers.SequenceReader`1[int]:ResetReader():this (FullOpts)
          27 (3.91 % of base) : System.Memory.dasm - System.Buffers.SequenceReader`1[long]:ResetReader():this (FullOpts)
          27 (3.91 % of base) : System.Memory.dasm - System.Buffers.SequenceReader`1[short]:ResetReader():this (FullOpts)
          27 (3.87 % of base) : System.Memory.dasm - System.Buffers.SequenceReader`1[System.Numerics.Vector`1[float]]:ResetReader():this (FullOpts)
          27 (3.90 % of base) : System.Memory.dasm - System.Buffers.SequenceReader`1[ubyte]:ResetReader():this (FullOpts)
          20 (1.78 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:GetNextSpan():ubyte:this (FullOpts)
           2 (0.60 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:.ctor(System.ReadOnlySpan`1[ubyte],ubyte,System.Text.Json.JsonReaderState):this (FullOpts)
           2 (8.00 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:set_ValueSequence(System.Buffers.ReadOnlySequence`1[ubyte]):this (FullOpts)
           1 (0.13 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:SkipOrConsumeCommentMultiSegmentWithRollback():ubyte:this (FullOpts)

Top method improvements (bytes):
        -216 (-100.00 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.LdapConnection:set_Timeout(System.TimeSpan):this (FullOpts)
         -25 (-3.92 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:ConsumeSignMultiSegment(byref,byref,byref):ubyte:this (FullOpts)
         -20 (-5.01 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:ConsumeNegativeSignMultiSegment(byref,byref,byref):ubyte:this (FullOpts)
         -18 (-1.88 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:TryGetNumberMultiSegment(System.ReadOnlySpan`1[ubyte],byref):ubyte:this (FullOpts)
         -12 (-3.06 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:ConsumeDecimalDigitsMultiSegment(byref,byref,byref):ubyte:this (FullOpts)
          -5 (-3.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[double]:.ctor(byref,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long],long):this (FullOpts)
          -5 (-0.98 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[double]:.ctor(double[],int,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.84 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[double]:.ctor(double[],System.Index,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[double]:.ctor(double[]):this (FullOpts)
          -5 (-0.58 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[double]:.ctor(System.Array,System.ReadOnlySpan`1[int],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.59 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[double]:.ctor(System.Array,System.ReadOnlySpan`1[System.Buffers.NIndex],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.18 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[double]:.ctor(System.ReadOnlySpan`1[double],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.17 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[double]:.ctor(ulong,long,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.35 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[double]:.ctor(ulong,long):this (FullOpts)
          -5 (-3.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[int]:.ctor(byref,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long],long):this (FullOpts)
          -5 (-0.98 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[int]:.ctor(int[],int,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.84 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[int]:.ctor(int[],System.Index,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[int]:.ctor(int[]):this (FullOpts)
          -5 (-0.58 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[int]:.ctor(System.Array,System.ReadOnlySpan`1[int],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.59 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[int]:.ctor(System.Array,System.ReadOnlySpan`1[System.Buffers.NIndex],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.18 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[int]:.ctor(System.ReadOnlySpan`1[int],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.17 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[int]:.ctor(ulong,long,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.35 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[int]:.ctor(ulong,long):this (FullOpts)
          -5 (-3.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[long]:.ctor(byref,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long],long):this (FullOpts)
          -5 (-0.98 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[long]:.ctor(long[],int,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.84 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[long]:.ctor(long[],System.Index,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[long]:.ctor(long[]):this (FullOpts)
          -5 (-0.58 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[long]:.ctor(System.Array,System.ReadOnlySpan`1[int],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.59 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[long]:.ctor(System.Array,System.ReadOnlySpan`1[System.Buffers.NIndex],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.18 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[long]:.ctor(System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.17 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[long]:.ctor(ulong,long,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.35 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[long]:.ctor(ulong,long):this (FullOpts)
          -5 (-3.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[short]:.ctor(byref,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long],long):this (FullOpts)
          -5 (-0.98 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[short]:.ctor(short[],int,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.84 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[short]:.ctor(short[],System.Index,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[short]:.ctor(short[]):this (FullOpts)
          -5 (-0.58 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[short]:.ctor(System.Array,System.ReadOnlySpan`1[int],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.59 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[short]:.ctor(System.Array,System.ReadOnlySpan`1[System.Buffers.NIndex],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.18 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[short]:.ctor(System.ReadOnlySpan`1[short],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.17 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[short]:.ctor(ulong,long,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.35 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[short]:.ctor(ulong,long):this (FullOpts)
          -5 (-2.72 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.__Canon]:.ctor(byref,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long],long):this (FullOpts)
          -5 (-0.83 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.__Canon]:.ctor(System.__Canon[],int,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.70 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.__Canon]:.ctor(System.__Canon[],System.Index,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.02 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.__Canon]:.ctor(System.__Canon[]):this (FullOpts)
          -5 (-0.56 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.__Canon]:.ctor(System.Array,System.ReadOnlySpan`1[int],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.56 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.__Canon]:.ctor(System.Array,System.ReadOnlySpan`1[System.Buffers.NIndex],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.18 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.__Canon]:.ctor(System.ReadOnlySpan`1[System.__Canon],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-3.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.Nullable`1[int]]:.ctor(byref,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long],long):this (FullOpts)
          -5 (-0.58 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.Nullable`1[int]]:.ctor(System.Array,System.ReadOnlySpan`1[int],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.59 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.Nullable`1[int]]:.ctor(System.Array,System.ReadOnlySpan`1[System.Buffers.NIndex],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.98 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.Nullable`1[int]]:.ctor(System.Nullable`1[int][],int,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.84 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.Nullable`1[int]]:.ctor(System.Nullable`1[int][],System.Index,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.Nullable`1[int]]:.ctor(System.Nullable`1[int][]):this (FullOpts)
          -5 (-1.18 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.Nullable`1[int]]:.ctor(System.ReadOnlySpan`1[System.Nullable`1[int]],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.17 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.Nullable`1[int]]:.ctor(ulong,long,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.35 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.Nullable`1[int]]:.ctor(ulong,long):this (FullOpts)
          -5 (-3.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.Numerics.Vector`1[float]]:.ctor(byref,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long],long):this (FullOpts)
          -5 (-0.58 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.Numerics.Vector`1[float]]:.ctor(System.Array,System.ReadOnlySpan`1[int],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.59 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.Numerics.Vector`1[float]]:.ctor(System.Array,System.ReadOnlySpan`1[System.Buffers.NIndex],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.98 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.Numerics.Vector`1[float]]:.ctor(System.Numerics.Vector`1[float][],int,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.84 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.Numerics.Vector`1[float]]:.ctor(System.Numerics.Vector`1[float][],System.Index,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.Numerics.Vector`1[float]]:.ctor(System.Numerics.Vector`1[float][]):this (FullOpts)
          -5 (-1.18 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.Numerics.Vector`1[float]]:.ctor(System.ReadOnlySpan`1[System.Numerics.Vector`1[float]],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.17 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.Numerics.Vector`1[float]]:.ctor(ulong,long,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.35 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.Numerics.Vector`1[float]]:.ctor(ulong,long):this (FullOpts)
          -5 (-3.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[ubyte]:.ctor(byref,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long],long):this (FullOpts)
          -5 (-0.59 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[ubyte]:.ctor(System.Array,System.ReadOnlySpan`1[int],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.59 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[ubyte]:.ctor(System.Array,System.ReadOnlySpan`1[System.Buffers.NIndex],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.18 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[ubyte]:.ctor(System.ReadOnlySpan`1[ubyte],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.99 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[ubyte]:.ctor(ubyte[],int,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.85 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[ubyte]:.ctor(ubyte[],System.Index,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[ubyte]:.ctor(ubyte[]):this (FullOpts)
          -5 (-1.17 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[ubyte]:.ctor(ulong,long,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.35 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[ubyte]:.ctor(ulong,long):this (FullOpts)
          -5 (-3.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[double]:.ctor(byref,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long],long):this (FullOpts)
          -5 (-0.98 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[double]:.ctor(double[],int,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.84 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[double]:.ctor(double[],System.Index,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[double]:.ctor(double[]):this (FullOpts)
          -5 (-0.58 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[double]:.ctor(System.Array,System.ReadOnlySpan`1[int],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.59 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[double]:.ctor(System.Array,System.ReadOnlySpan`1[System.Buffers.NIndex],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.18 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[double]:.ctor(System.Span`1[double],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.17 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[double]:.ctor(ulong,long,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.35 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[double]:.ctor(ulong,long):this (FullOpts)
          -5 (-3.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[int]:.ctor(byref,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long],long):this (FullOpts)
          -5 (-0.98 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[int]:.ctor(int[],int,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.84 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[int]:.ctor(int[],System.Index,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[int]:.ctor(int[]):this (FullOpts)
          -5 (-0.58 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[int]:.ctor(System.Array,System.ReadOnlySpan`1[int],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.59 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[int]:.ctor(System.Array,System.ReadOnlySpan`1[System.Buffers.NIndex],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.18 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[int]:.ctor(System.Span`1[int],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.17 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[int]:.ctor(ulong,long,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.35 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[int]:.ctor(ulong,long):this (FullOpts)
          -5 (-3.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[long]:.ctor(byref,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long],long):this (FullOpts)
          -5 (-0.98 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[long]:.ctor(long[],int,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.84 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[long]:.ctor(long[],System.Index,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[long]:.ctor(long[]):this (FullOpts)
          -5 (-0.58 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[long]:.ctor(System.Array,System.ReadOnlySpan`1[int],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.59 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[long]:.ctor(System.Array,System.ReadOnlySpan`1[System.Buffers.NIndex],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.18 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[long]:.ctor(System.Span`1[long],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)

Top method regressions (percentages):
          44 (133.33 % of base) : System.Private.CoreLib.dasm - System.Reflection.MethodBase+StackAllocatedArguments:.ctor(System.Object,System.Object,System.Object,System.Object):this (FullOpts)
           2 (8.00 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:set_ValueSequence(System.Buffers.ReadOnlySequence`1[ubyte]):this (FullOpts)
          54 (7.68 % of base) : System.Memory.dasm - System.Buffers.SequenceReader`1[double]:GetNextSpan():this (FullOpts)
          54 (7.68 % of base) : System.Memory.dasm - System.Buffers.SequenceReader`1[int]:GetNextSpan():this (FullOpts)
          54 (7.68 % of base) : System.Memory.dasm - System.Buffers.SequenceReader`1[long]:GetNextSpan():this (FullOpts)
          54 (7.68 % of base) : System.Memory.dasm - System.Buffers.SequenceReader`1[short]:GetNextSpan():this (FullOpts)
          53 (7.52 % of base) : System.Memory.dasm - System.Buffers.SequenceReader`1[ubyte]:GetNextSpan():this (FullOpts)
          53 (7.48 % of base) : System.Memory.dasm - System.Buffers.SequenceReader`1[System.Numerics.Vector`1[float]]:GetNextSpan():this (FullOpts)
          40 (6.97 % of base) : System.Memory.dasm - System.Buffers.SequenceReader`1[ubyte]:.ctor(System.Buffers.ReadOnlySequence`1[ubyte]):this (FullOpts)
          40 (6.93 % of base) : System.Memory.dasm - System.Buffers.SequenceReader`1[double]:.ctor(System.Buffers.ReadOnlySequence`1[double]):this (FullOpts)
          40 (6.93 % of base) : System.Memory.dasm - System.Buffers.SequenceReader`1[int]:.ctor(System.Buffers.ReadOnlySequence`1[int]):this (FullOpts)
          40 (6.93 % of base) : System.Memory.dasm - System.Buffers.SequenceReader`1[long]:.ctor(System.Buffers.ReadOnlySequence`1[long]):this (FullOpts)
          40 (6.93 % of base) : System.Memory.dasm - System.Buffers.SequenceReader`1[short]:.ctor(System.Buffers.ReadOnlySequence`1[short]):this (FullOpts)
          40 (6.73 % of base) : System.Memory.dasm - System.Buffers.SequenceReader`1[System.Numerics.Vector`1[float]]:.ctor(System.Buffers.ReadOnlySequence`1[System.Numerics.Vector`1[float]]):this (FullOpts)
          99 (5.43 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:.ctor(System.Buffers.ReadOnlySequence`1[ubyte],ubyte,System.Text.Json.JsonReaderState):this (FullOpts)
          27 (3.91 % of base) : System.Memory.dasm - System.Buffers.SequenceReader`1[double]:ResetReader():this (FullOpts)
          27 (3.91 % of base) : System.Memory.dasm - System.Buffers.SequenceReader`1[int]:ResetReader():this (FullOpts)
          27 (3.91 % of base) : System.Memory.dasm - System.Buffers.SequenceReader`1[long]:ResetReader():this (FullOpts)
          27 (3.91 % of base) : System.Memory.dasm - System.Buffers.SequenceReader`1[short]:ResetReader():this (FullOpts)
          27 (3.90 % of base) : System.Memory.dasm - System.Buffers.SequenceReader`1[ubyte]:ResetReader():this (FullOpts)
          27 (3.87 % of base) : System.Memory.dasm - System.Buffers.SequenceReader`1[System.Numerics.Vector`1[float]]:ResetReader():this (FullOpts)
          20 (1.78 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:GetNextSpan():ubyte:this (FullOpts)
           2 (0.60 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:.ctor(System.ReadOnlySpan`1[ubyte],ubyte,System.Text.Json.JsonReaderState):this (FullOpts)
           1 (0.13 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:SkipOrConsumeCommentMultiSegmentWithRollback():ubyte:this (FullOpts)

Top method improvements (percentages):
        -216 (-100.00 % of base) : System.DirectoryServices.Protocols.dasm - System.DirectoryServices.Protocols.LdapConnection:set_Timeout(System.TimeSpan):this (FullOpts)
          -5 (-12.20 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:RollBackState(byref,ubyte):this (FullOpts)
         -20 (-5.01 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:ConsumeNegativeSignMultiSegment(byref,byref,byref):ubyte:this (FullOpts)
         -25 (-3.92 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:ConsumeSignMultiSegment(byref,byref,byref):ubyte:this (FullOpts)
          -5 (-3.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[double]:.ctor(byref,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long],long):this (FullOpts)
          -5 (-3.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[int]:.ctor(byref,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long],long):this (FullOpts)
          -5 (-3.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[long]:.ctor(byref,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long],long):this (FullOpts)
          -5 (-3.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[short]:.ctor(byref,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long],long):this (FullOpts)
          -5 (-3.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.Nullable`1[int]]:.ctor(byref,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long],long):this (FullOpts)
          -5 (-3.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.Numerics.Vector`1[float]]:.ctor(byref,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long],long):this (FullOpts)
          -5 (-3.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[ubyte]:.ctor(byref,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long],long):this (FullOpts)
          -5 (-3.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[double]:.ctor(byref,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long],long):this (FullOpts)
          -5 (-3.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[int]:.ctor(byref,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long],long):this (FullOpts)
          -5 (-3.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[long]:.ctor(byref,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long],long):this (FullOpts)
          -5 (-3.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[short]:.ctor(byref,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long],long):this (FullOpts)
          -5 (-3.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[System.Nullable`1[int]]:.ctor(byref,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long],long):this (FullOpts)
          -5 (-3.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[System.Numerics.Vector`1[float]]:.ctor(byref,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long],long):this (FullOpts)
          -5 (-3.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[ubyte]:.ctor(byref,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long],long):this (FullOpts)
         -12 (-3.06 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:ConsumeDecimalDigitsMultiSegment(byref,byref,byref):ubyte:this (FullOpts)
          -5 (-2.72 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.__Canon]:.ctor(byref,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long],long):this (FullOpts)
          -5 (-2.72 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[System.__Canon]:.ctor(byref,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long],long):this (FullOpts)
         -18 (-1.88 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:TryGetNumberMultiSegment(System.ReadOnlySpan`1[ubyte],byref):ubyte:this (FullOpts)
          -5 (-1.35 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[double]:.ctor(ulong,long):this (FullOpts)
          -5 (-1.35 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[int]:.ctor(ulong,long):this (FullOpts)
          -5 (-1.35 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[long]:.ctor(ulong,long):this (FullOpts)
          -5 (-1.35 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[short]:.ctor(ulong,long):this (FullOpts)
          -5 (-1.35 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.Nullable`1[int]]:.ctor(ulong,long):this (FullOpts)
          -5 (-1.35 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.Numerics.Vector`1[float]]:.ctor(ulong,long):this (FullOpts)
          -5 (-1.35 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[ubyte]:.ctor(ulong,long):this (FullOpts)
          -5 (-1.35 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[double]:.ctor(ulong,long):this (FullOpts)
          -5 (-1.35 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[int]:.ctor(ulong,long):this (FullOpts)
          -5 (-1.35 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[long]:.ctor(ulong,long):this (FullOpts)
          -5 (-1.35 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[short]:.ctor(ulong,long):this (FullOpts)
          -5 (-1.35 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[System.Nullable`1[int]]:.ctor(ulong,long):this (FullOpts)
          -5 (-1.35 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[System.Numerics.Vector`1[float]]:.ctor(ulong,long):this (FullOpts)
          -5 (-1.35 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[ubyte]:.ctor(ulong,long):this (FullOpts)
          -5 (-1.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[double]:.ctor(double[]):this (FullOpts)
          -5 (-1.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[int]:.ctor(int[]):this (FullOpts)
          -5 (-1.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[long]:.ctor(long[]):this (FullOpts)
          -5 (-1.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[short]:.ctor(short[]):this (FullOpts)
          -5 (-1.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.Nullable`1[int]]:.ctor(System.Nullable`1[int][]):this (FullOpts)
          -5 (-1.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.Numerics.Vector`1[float]]:.ctor(System.Numerics.Vector`1[float][]):this (FullOpts)
          -5 (-1.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[ubyte]:.ctor(ubyte[]):this (FullOpts)
          -5 (-1.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[double]:.ctor(double[]):this (FullOpts)
          -5 (-1.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[int]:.ctor(int[]):this (FullOpts)
          -5 (-1.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[long]:.ctor(long[]):this (FullOpts)
          -5 (-1.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[short]:.ctor(short[]):this (FullOpts)
          -5 (-1.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[System.Nullable`1[int]]:.ctor(System.Nullable`1[int][]):this (FullOpts)
          -5 (-1.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[System.Numerics.Vector`1[float]]:.ctor(System.Numerics.Vector`1[float][]):this (FullOpts)
          -5 (-1.21 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[ubyte]:.ctor(ubyte[]):this (FullOpts)
          -5 (-1.18 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[double]:.ctor(System.ReadOnlySpan`1[double],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.18 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[int]:.ctor(System.ReadOnlySpan`1[int],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.18 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[long]:.ctor(System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.18 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[short]:.ctor(System.ReadOnlySpan`1[short],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.18 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.__Canon]:.ctor(System.ReadOnlySpan`1[System.__Canon],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.18 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.Nullable`1[int]]:.ctor(System.ReadOnlySpan`1[System.Nullable`1[int]],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.18 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.Numerics.Vector`1[float]]:.ctor(System.ReadOnlySpan`1[System.Numerics.Vector`1[float]],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.18 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[ubyte]:.ctor(System.ReadOnlySpan`1[ubyte],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.18 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[double]:.ctor(System.Span`1[double],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.18 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[int]:.ctor(System.Span`1[int],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.18 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[long]:.ctor(System.Span`1[long],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.18 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[short]:.ctor(System.Span`1[short],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.18 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[System.__Canon]:.ctor(System.Span`1[System.__Canon],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.18 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[System.Nullable`1[int]]:.ctor(System.Span`1[System.Nullable`1[int]],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.18 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[System.Numerics.Vector`1[float]]:.ctor(System.Span`1[System.Numerics.Vector`1[float]],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.18 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[ubyte]:.ctor(System.Span`1[ubyte],System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.17 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[double]:.ctor(ulong,long,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.17 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[int]:.ctor(ulong,long,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.17 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[long]:.ctor(ulong,long,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.17 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[short]:.ctor(ulong,long,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.17 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.Nullable`1[int]]:.ctor(ulong,long,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.17 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.Numerics.Vector`1[float]]:.ctor(ulong,long,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.17 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[ubyte]:.ctor(ulong,long,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.17 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[double]:.ctor(ulong,long,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.17 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[int]:.ctor(ulong,long,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.17 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[long]:.ctor(ulong,long,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.17 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[short]:.ctor(ulong,long,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.17 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[System.Nullable`1[int]]:.ctor(ulong,long,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.17 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[System.Numerics.Vector`1[float]]:.ctor(ulong,long,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.17 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[ubyte]:.ctor(ulong,long,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-1.02 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.__Canon]:.ctor(System.__Canon[]):this (FullOpts)
          -5 (-1.02 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[System.__Canon]:.ctor(System.__Canon[]):this (FullOpts)
          -4 (-1.01 % of base) : System.Text.Json.dasm - System.Text.Json.Utf8JsonReader:ConsumeZeroMultiSegment(byref,byref,byref):ubyte:this (FullOpts)
          -5 (-0.99 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[ubyte]:.ctor(ubyte[],int,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.99 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[ubyte]:.ctor(ubyte[],int,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.98 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[short]:.ctor(short[],int,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.98 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[short]:.ctor(short[],int,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.98 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[double]:.ctor(double[],int,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.98 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[int]:.ctor(int[],int,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.98 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[long]:.ctor(long[],int,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.98 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.Nullable`1[int]]:.ctor(System.Nullable`1[int][],int,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.98 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.Numerics.Vector`1[float]]:.ctor(System.Numerics.Vector`1[float][],int,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.98 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[double]:.ctor(double[],int,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.98 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[int]:.ctor(int[],int,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.98 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[long]:.ctor(long[],int,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.98 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[System.Nullable`1[int]]:.ctor(System.Nullable`1[int][],int,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.98 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[System.Numerics.Vector`1[float]]:.ctor(System.Numerics.Vector`1[float][],int,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.85 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[ubyte]:.ctor(ubyte[],System.Index,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.85 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.TensorSpan`1[ubyte]:.ctor(ubyte[],System.Index,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
          -5 (-0.84 % of base) : System.Numerics.Tensors.dasm - System.Numerics.Tensors.ReadOnlyTensorSpan`1[short]:.ctor(short[],System.Index,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)

171 total methods with Code Size differences (147 improved, 24 regressed), 235223 unchanged.

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

Artifacts:

• build-clr-checked-main.zip (88 MB)
• build-artifacts-main.zip (708 MB)
• build-clr-checked-pr.zip (88 MB)
• build-artifacts-pr.zip (709 MB)
• jit-diffs-pr.zip (137 MB)
• jit-diffs-main.zip (137 MB)
• diff-frameworks.txt (46 KB)
• ShortDiffsRegressions.md (58 KB)
• LongDiffsRegressions.md (556 KB)
• ShortDiffsImprovements.md (59 KB)
• LongDiffsImprovements.md (278 KB)

[MihuBot]

Top method regressions

54 (7.68 % of base) - System.Buffers.SequenceReader`1[double]:GetNextSpan():this

 ; Assembly listing for method System.Buffers.SequenceReader`1[double]:GetNextSpan():this (FullOpts)
 ; Emitting BLENDED_CODE for X64 with AVX512 - Unix
 ; FullOpts code
 ; optimized code
 ; rbp based frame
 ; fully interruptible
 ; No PGO data
 ; 0 inlinees with PGO data; 24 single block inlinees; 7 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 this         [V00,T00] ( 18, 46   )   byref  ->  rbx         this single-def
 ;* V01 loc0         [V01    ] (  0,  0   )  struct (24) zero-ref    ld-addr-op <System.Buffers.ReadOnlySequence`1[double]>
 ;* V02 loc1         [V02    ] (  0,  0   )  struct (16) zero-ref    <System.SequencePosition>
 ;* V03 loc2         [V03    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op <System.ReadOnlyMemory`1[double]>
 ;* V04 loc3         [V04    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op <System.ReadOnlySpan`1[double]>
 ;# V05 OutArgs      [V05    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace"
 ;* V06 tmp1         [V06    ] (  0,  0   )  struct (16) zero-ref    "spilled call-like call argument" <System.ReadOnlySpan`1[double]>
-;  V07 tmp2         [V07,T02] (  4, 28   )   byref  ->  [rbp-0x48]  spill-single-def "Inlining Arg"
+;  V07 tmp2         [V07,T02] (  4, 28   )   byref  ->  [rbp-0x50]  spill-single-def "Inlining Arg"
 ;* V08 tmp3         [V08    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "Inline ldloca(s) first use temp" <System.SequencePosition>
-;  V09 tmp4         [V09,T24] (  2,  8   )     int  ->  rdx        
+;  V09 tmp4         [V09,T24] (  2,  8   )     int  ->  [rbp-0x2C]  spill-single-def
 ;* V10 tmp5         [V10    ] (  0,  0   )     int  ->  zero-ref   
 ;  V11 tmp6         [V11,T21] (  3,  8   )   ubyte  ->  registers   "Inline return value spill temp"
 ;  V12 tmp7         [V12,T10] (  4, 12   )     ref  ->  rsi         class-hnd "Inline stloc first use temp" <System.Object>
 ;  V13 tmp8         [V13,T32] (  3,  6   )     int  ->  rdi         "Inline stloc first use temp"
 ;* V14 tmp9         [V14    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "Inline stloc first use temp" <System.Object>
-;  V15 tmp10        [V15,T01] ( 14, 28   )     int  ->  [rbp-0x2C]  spill-single-def "Inline stloc first use temp"
+;  V15 tmp10        [V15,T01] ( 14, 28   )     int  ->  [rbp-0x30]  spill-single-def "Inline stloc first use temp"
 ;  V16 tmp11        [V16,T19] (  4,  8   )     int  ->  r12         "Inline stloc first use temp"
 ;* V17 tmp12        [V17    ] (  0,  0   )  struct (16) zero-ref    do-not-enreg[SR] multireg-ret "Return value temp for multireg return" <System.Memory`1[double]>
 ;  V18 tmp13        [V18    ] (  4,  8   )  struct (16) [rbp-0x40]  do-not-enreg[SBR] multireg-ret must-init ld-addr-op "Inline stloc first use temp" <System.Memory`1[double]>
 ;* V19 tmp14        [V19    ] (  0,  0   )  struct (16) zero-ref    "spilled call-like call argument" <System.Memory`1[double]>
 ;* V20 tmp15        [V20    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "NewObj constructor temp" <System.ReadOnlyMemory`1[double]>
 ;  V21 tmp16        [V21,T09] (  6, 12   )     ref  ->  rax         class-hnd "Inline stloc first use temp" <System.Buffers.ReadOnlySequenceSegment`1[double]>
 ;* V22 tmp17        [V22    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "Inline stloc first use temp" <System.ReadOnlyMemory`1[double]>
 ;  V23 tmp18        [V23,T30] (  3,  6   )     ref  ->  rcx         class-hnd "Inline stloc first use temp" <System.Buffers.ReadOnlySequenceSegment`1[double]>
 ;* V24 tmp19        [V24    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "NewObj constructor temp" <System.SequencePosition>
 ;* V25 tmp20        [V25    ] (  0,  0   )     int  ->  zero-ref    "Inlining Arg"
 ;* V26 tmp21        [V26    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "NewObj constructor temp" <System.ReadOnlyMemory`1[double]>
 ;* V27 tmp22        [V27    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "Inlining Arg" <System.Object>
-;  V28 tmp23        [V28,T25] (  2,  8   )     int  ->  rax         "Inlining Arg"
-;  V29 tmp24        [V29,T26] (  2,  8   )     int  ->  rdx         "Inlining Arg"
+;  V28 tmp23        [V28,T25] (  2,  8   )     int  ->  rdi         "Inlining Arg"
+;  V29 tmp24        [V29,T26] (  2,  8   )     int  ->  rsi         "Inlining Arg"
 ;  V30 tmp25        [V30,T13] (  3, 12   )     int  ->  r12         "Inlining Arg"
 ;* V31 tmp26        [V31    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "NewObj constructor temp" <System.ReadOnlyMemory`1[double]>
 ;* V32 tmp27        [V32    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "Inlining Arg" <System.Object>
-;  V33 tmp28        [V33,T27] (  2,  8   )     int  ->  rcx         "Inlining Arg"
-;  V34 tmp29        [V34,T04] (  4, 16   )     ref  ->  rdi         class-hnd "Inlining Arg" <double[]>
+;  V33 tmp28        [V33,T27] (  2,  8   )     int  ->  rdi         "Inlining Arg"
+;  V34 tmp29        [V34,T04] (  4, 16   )     ref  ->   r8         class-hnd "Inlining Arg" <double[]>
 ;  V35 tmp30        [V35,T05] (  4, 16   )     int  ->  r12         "Inlining Arg"
 ;  V36 tmp31        [V36,T14] (  3, 12   )     int  ->  r12         "Inlining Arg"
 ;* V37 tmp32        [V37    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "NewObj constructor temp" <System.Memory`1[double]>
 ;* V38 tmp33        [V38    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "Inlining Arg" <System.Object>
 ;  V39 tmp34        [V39,T28] (  2,  8   )     int  ->  r15         "Inlining Arg"
 ;* V40 tmp35        [V40    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "Inlining Arg" <System.Memory`1[double]>
 ;* V41 tmp36        [V41    ] (  0,  0   )  struct (16) zero-ref    "Inline return value spill temp" <System.ReadOnlySpan`1[double]>
-;  V42 tmp37        [V42,T51] (  6,  3   )   byref  ->  r14         "Inline stloc first use temp"
-;  V43 tmp38        [V43,T52] (  6,  3   )     int  ->  r13         "Inline stloc first use temp"
+;  V42 tmp37        [V42,T51] (  6,  3   )   byref  ->  r13         "Inline stloc first use temp"
+;  V43 tmp38        [V43,T52] (  6,  3   )     int  ->  rax         "Inline stloc first use temp"
 ;* V44 tmp39        [V44    ] (  0,  0   )     ref  ->  zero-ref    class-hnd single-def "Inline stloc first use temp" <System.Object>
 ;* V45 tmp40        [V45    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "NewObj constructor temp" <System.ReadOnlySpan`1[double]>
 ;* V46 tmp41        [V46    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "updating class info" <System.Buffers.MemoryManager`1[double]>
 ;* V47 tmp42        [V47    ] (  0,  0   )  struct (16) zero-ref    do-not-enreg[SBR] multireg-ret "Return value temp for multireg return" <System.Span`1[double]>
 ;* V48 tmp43        [V48    ] (  0,  0   )  struct (16) zero-ref    multireg-ret ld-addr-op "Inline stloc first use temp" <System.Span`1[double]>
-;  V49 tmp44        [V49,T56] (  3,  1.50)    long  ->  rax         "Inline stloc first use temp"
+;  V49 tmp44        [V49,T56] (  3,  1.50)    long  ->  rcx         "Inline stloc first use temp"
 ;* V50 tmp45        [V50    ] (  0,  0   )     int  ->  zero-ref    "Inline stloc first use temp"
 ;* V51 tmp46        [V51    ] (  0,  0   )     ref  ->  zero-ref    class-hnd single-def "updating class info" <double[]>
 ;* V52 tmp47        [V52    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "updating class info" <double[]>
-;  V53 tmp48        [V53,T53] (  2,  2   )   byref  ->  rax         single-def "Inlining Arg"
+;  V53 tmp48        [V53,T53] (  2,  2   )   byref  ->  rdi         single-def "Inlining Arg"
 ;* V54 tmp49        [V54    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "Inlining Arg" <System.Span`1[double]>
 ;* V55 tmp50        [V55    ] (  0,  0   )  struct (16) zero-ref    "Inlining Arg" <System.ReadOnlySpan`1[double]>
 ;  V56 tmp51        [V56,T54] (  2,  2   )     ref  ->  rsi         single-def "field V01._startObject (fldOffset=0x0)" P-INDEP
 ;  V57 tmp52        [V57,T03] ( 11, 20.50)     ref  ->  r15         "field V01._endObject (fldOffset=0x8)" P-INDEP
 ;  V58 tmp53        [V58,T35] (  2,  6   )     int  ->  rdi         "field V01._startInteger (fldOffset=0x10)" P-INDEP
 ;  V59 tmp54        [V59,T22] (  3,  8   )     int  ->  r12         "field V01._endInteger (fldOffset=0x14)" P-INDEP
 ;  V60 tmp55        [V60,T23] (  2,  8   )     ref  ->  r14         "field V02._object (fldOffset=0x0)" P-INDEP
 ;  V61 tmp56        [V61,T29] (  2,  8   )     int  ->  r13         "field V02._integer (fldOffset=0x8)" P-INDEP
-;  V62 tmp57        [V62,T08] ( 11, 13   )     ref  ->  rdi         "field V03._object (fldOffset=0x0)" P-INDEP
+;  V62 tmp57        [V62,T08] ( 11, 13   )     ref  ->  registers   "field V03._object (fldOffset=0x0)" P-INDEP
 ;  V63 tmp58        [V63,T15] (  6, 10.50)     int  ->  r15         "field V03._index (fldOffset=0x8)" P-INDEP
-;  V64 tmp59        [V64,T06] (  8, 15   )     int  ->  registers   "field V03._length (fldOffset=0xc)" P-INDEP
+;  V64 tmp59        [V64,T06] (  8, 15   )     int  ->  [rbp-0x44]  "field V03._length (fldOffset=0xc)" P-INDEP
 ;* V65 tmp60        [V65    ] (  0,  0   )   byref  ->  zero-ref    "field V04._reference (fldOffset=0x0)" P-INDEP
 ;* V66 tmp61        [V66    ] (  0,  0   )     int  ->  zero-ref    "field V04._length (fldOffset=0x8)" P-INDEP
 ;* V67 tmp62        [V67    ] (  0,  0   )   byref  ->  zero-ref    "field V06._reference (fldOffset=0x0)" P-INDEP
 ;* V68 tmp63        [V68    ] (  0,  0   )     int  ->  zero-ref    "field V06._length (fldOffset=0x8)" P-INDEP
-;  V69 tmp64        [V69,T17] (  3, 10   )     ref  ->  [rbp-0x50]  "field V08._object (fldOffset=0x0)" P-INDEP
+;  V69 tmp64        [V69,T17] (  3, 10   )     ref  ->  [rbp-0x58]  "field V08._object (fldOffset=0x0)" P-INDEP
 ;* V70 tmp65        [V70,T36] (  0,  0   )     int  ->  zero-ref    "field V08._integer (fldOffset=0x8)" P-INDEP
 ;  V71 tmp66        [V71,T38] (  2,  4   )     ref  ->  [rbp-0x40]  do-not-enreg[] "field V18._object (fldOffset=0x0)" P-DEP
 ;  V72 tmp67        [V72,T43] (  2,  4   )     int  ->  [rbp-0x38]  do-not-enreg[] "field V18._index (fldOffset=0x8)" P-DEP
 ;  V73 tmp68        [V73,T44] (  2,  4   )     int  ->  [rbp-0x34]  do-not-enreg[] "field V18._length (fldOffset=0xc)" P-DEP
 ;* V74 tmp69        [V74    ] (  0,  0   )     ref  ->  zero-ref    "field V19._object (fldOffset=0x0)" P-INDEP
 ;* V75 tmp70        [V75    ] (  0,  0   )     int  ->  zero-ref    "field V19._index (fldOffset=0x8)" P-INDEP
 ;* V76 tmp71        [V76    ] (  0,  0   )     int  ->  zero-ref    "field V19._length (fldOffset=0xc)" P-INDEP
-;  V77 tmp72        [V77,T31] (  3,  6   )     ref  ->  rdi         "field V20._object (fldOffset=0x0)" P-INDEP
+;  V77 tmp72        [V77,T31] (  3,  6   )     ref  ->   r8         "field V20._object (fldOffset=0x0)" P-INDEP
 ;  V78 tmp73        [V78,T33] (  3,  6   )     int  ->  r15         "field V20._index (fldOffset=0x8)" P-INDEP
 ;  V79 tmp74        [V79,T34] (  3,  6   )     int  ->  r12         "field V20._length (fldOffset=0xc)" P-INDEP
-;  V80 tmp75        [V80,T18] (  4,  8   )     ref  ->  rdi         "field V22._object (fldOffset=0x0)" P-INDEP
-;  V81 tmp76        [V81,T20] (  4,  8   )     int  ->  rcx         "field V22._index (fldOffset=0x8)" P-INDEP
-;  V82 tmp77        [V82,T16] (  5, 10   )     int  ->  rdx         "field V22._length (fldOffset=0xc)" P-INDEP
+;  V80 tmp75        [V80,T18] (  4,  8   )     ref  ->   r8         "field V22._object (fldOffset=0x0)" P-INDEP
+;  V81 tmp76        [V81,T20] (  4,  8   )     int  ->  rdi         "field V22._index (fldOffset=0x8)" P-INDEP
+;  V82 tmp77        [V82,T16] (  5, 10   )     int  ->  rsi         "field V22._length (fldOffset=0xc)" P-INDEP
 ;  V83 tmp78        [V83,T39] (  2,  4   )     ref  ->  rcx         "field V24._object (fldOffset=0x0)" P-INDEP
 ;* V84 tmp79        [V84,T55] (  0,  0   )     int  ->  zero-ref    "field V24._integer (fldOffset=0x8)" P-INDEP
-;  V85 tmp80        [V85,T40] (  2,  4   )     ref  ->  rdi         "field V26._object (fldOffset=0x0)" P-INDEP
+;  V85 tmp80        [V85,T40] (  2,  4   )     ref  ->  rax         "field V26._object (fldOffset=0x0)" P-INDEP
 ;  V86 tmp81        [V86,T45] (  2,  4   )     int  ->  r15         "field V26._index (fldOffset=0x8)" P-INDEP
-;  V87 tmp82        [V87,T46] (  2,  4   )     int  ->  rdx         "field V26._length (fldOffset=0xc)" P-INDEP
-;  V88 tmp83        [V88,T41] (  2,  4   )     ref  ->  rdi         "field V31._object (fldOffset=0x0)" P-INDEP
+;  V87 tmp82        [V87,T46] (  2,  4   )     int  ->  rsi         "field V26._length (fldOffset=0xc)" P-INDEP
+;  V88 tmp83        [V88,T41] (  2,  4   )     ref  ->   r8         "field V31._object (fldOffset=0x0)" P-INDEP
 ;  V89 tmp84        [V89,T47] (  2,  4   )     int  ->  r15         "field V31._index (fldOffset=0x8)" P-INDEP
 ;  V90 tmp85        [V90,T48] (  2,  4   )     int  ->  r12         "field V31._length (fldOffset=0xc)" P-INDEP
-;  V91 tmp86        [V91,T42] (  2,  4   )     ref  ->  rdi         "field V37._object (fldOffset=0x0)" P-INDEP
+;  V91 tmp86        [V91,T42] (  2,  4   )     ref  ->  rax         "field V37._object (fldOffset=0x0)" P-INDEP
 ;  V92 tmp87        [V92,T49] (  2,  4   )     int  ->  r15         "field V37._index (fldOffset=0x8)" P-INDEP
 ;  V93 tmp88        [V93,T50] (  2,  4   )     int  ->  r12         "field V37._length (fldOffset=0xc)" P-INDEP
 ;* V94 tmp89        [V94    ] (  0,  0   )     ref  ->  zero-ref    "field V40._object (fldOffset=0x0)" P-INDEP
 ;* V95 tmp90        [V95    ] (  0,  0   )     int  ->  zero-ref    "field V40._index (fldOffset=0x8)" P-INDEP
 ;* V96 tmp91        [V96    ] (  0,  0   )     int  ->  zero-ref    "field V40._length (fldOffset=0xc)" P-INDEP
 ;* V97 tmp92        [V97    ] (  0,  0   )   byref  ->  zero-ref    "field V41._reference (fldOffset=0x0)" P-INDEP
 ;* V98 tmp93        [V98    ] (  0,  0   )     int  ->  zero-ref    "field V41._length (fldOffset=0x8)" P-INDEP
-;  V99 tmp94        [V99,T57] (  2,  1   )   byref  ->  r14         single-def "field V45._reference (fldOffset=0x0)" P-INDEP
-;  V100 tmp95       [V100,T59] (  2,  1   )     int  ->  r13         "field V45._length (fldOffset=0x8)" P-INDEP
+;  V99 tmp94        [V99,T57] (  2,  1   )   byref  ->  r13         single-def "field V45._reference (fldOffset=0x0)" P-INDEP
+;  V100 tmp95       [V100,T59] (  2,  1   )     int  ->  rax         "field V45._length (fldOffset=0x8)" P-INDEP
 ;* V101 tmp96       [V101    ] (  0,  0   )   byref  ->  zero-ref    "field V47._reference (fldOffset=0x0)" P-DEP
 ;* V102 tmp97       [V102    ] (  0,  0   )     int  ->  zero-ref    "field V47._length (fldOffset=0x8)" P-DEP
-;  V103 tmp98       [V103,T58] (  2,  1   )   byref  ->  r14         "field V48._reference (fldOffset=0x0)" P-INDEP
-;  V104 tmp99       [V104,T60] (  2,  1   )     int  ->  r13         "field V48._length (fldOffset=0x8)" P-INDEP
+;  V103 tmp98       [V103,T58] (  2,  1   )   byref  ->  r13         "field V48._reference (fldOffset=0x0)" P-INDEP
+;  V104 tmp99       [V104,T60] (  2,  1   )     int  ->  rax         "field V48._length (fldOffset=0x8)" P-INDEP
 ;* V105 tmp100      [V105    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V54._reference (fldOffset=0x0)" P-INDEP
 ;* V106 tmp101      [V106    ] (  0,  0   )     int  ->  zero-ref    "field V54._length (fldOffset=0x8)" P-INDEP
 ;* V107 tmp102      [V107    ] (  0,  0   )   byref  ->  zero-ref    "field V55._reference (fldOffset=0x0)" P-INDEP
 ;* V108 tmp103      [V108    ] (  0,  0   )     int  ->  zero-ref    "field V55._length (fldOffset=0x8)" P-INDEP
 ;  V109 tmp104      [V109,T11] (  3, 12   )     ref  ->  rax         "argument with side effect"
 ;  V110 cse0        [V110,T12] (  3, 12   )     ref  ->  rsi         "CSE #01: moderate"
-;  V111 rat0        [V111,T07] (  5, 15   )     ref  ->  rdi         "replacement local"
-;  V112 rat1        [V112,T37] (  3,  5   )    long  ->   r8         "CSE for expectedClsNode"
+;  V111 rat0        [V111,T07] (  5, 15   )     ref  ->   r8         "replacement local"
+;  V112 rat1        [V112,T37] (  3,  5   )    long  ->  rdi         "CSE for expectedClsNode"
 ;
-; Lcl frame size = 40
+; Lcl frame size = 56
 
 G_M42350_IG01:
        push     rbp
        push     r15
        push     r14
        push     r13
        push     r12
        push     rbx
-       sub      rsp, 40
-       lea      rbp, [rsp+0x50]
+       sub      rsp, 56
+       lea      rbp, [rsp+0x60]
        xor      eax, eax
        mov      qword ptr [rbp-0x40], rax
        mov      rbx, rdi
 						;; size=28 bbWeight=1 PerfScore 8.25
 G_M42350_IG02:
        mov      rsi, gword ptr [rbx+0x38]
        mov      r15, gword ptr [rbx+0x40]
        cmp      rsi, r15
-       jne      G_M42350_IG22
+       jne      G_M42350_IG24
 						;; size=17 bbWeight=1 PerfScore 5.25
 G_M42350_IG03:
        mov      byte  ptr [rbx+0x14], 0
        jmp      SHORT G_M42350_IG08
 						;; size=6 bbWeight=0.50 PerfScore 1.50
 G_M42350_IG04:
-       xor      r14, r14
-       xor      r13d, r13d
-       test     rdi, rdi
+       xor      r13, r13
+       xor      eax, eax
+       test     r12, r12
        je       SHORT G_M42350_IG07
-       mov      rax, qword ptr [rdi]
-       test     dword ptr [rax], 0xD1FFAB1E
+       mov      rdi, qword ptr [r12]
+       test     dword ptr [rdi], 0xD1FFAB1E
        jne      SHORT G_M42350_IG05
-       mov      rax, qword ptr [rdi]
+       mov      rdi, r12
+       mov      rax, qword ptr [r12]
        mov      rax, qword ptr [rax+0x40]
        call     [rax+0x28]System.Buffers.MemoryManager`1[double]:GetSpan():System.Span`1[double]:this
-       mov      r14, rax
-       mov      r13d, edx
+       mov      r13, rax
+       mov      eax, edx
        jmp      SHORT G_M42350_IG06
-						;; size=40 bbWeight=0.50 PerfScore 8.62
+						;; size=43 bbWeight=0.50 PerfScore 8.75
 G_M42350_IG05:
-       lea      r14, bword ptr [rdi+0x10]
-       mov      r13d, dword ptr [rdi+0x08]
-						;; size=8 bbWeight=0.50 PerfScore 1.25
+       lea      r13, bword ptr [r12+0x10]
+       mov      eax, dword ptr [r12+0x08]
+						;; size=10 bbWeight=0.50 PerfScore 1.25
 G_M42350_IG06:
        and      r15d, 0xD1FFAB1E
-       mov      eax, r15d
-       mov      ecx, r12d
-       add      rcx, rax
-       mov      edx, r13d
-       cmp      rcx, rdx
+       mov      ecx, r15d
+       mov      edx, r14d
+       add      rdx, rcx
+       mov      eax, eax
+       cmp      rdx, rax
        ja       SHORT G_M42350_IG09
-       lea      r14, bword ptr [r14+8*rax]
-       mov      r13d, r12d
-						;; size=31 bbWeight=0.50 PerfScore 1.62
+       lea      r13, bword ptr [r13+8*rcx]
+       mov      eax, r14d
+						;; size=31 bbWeight=0.50 PerfScore 2.38
 G_M42350_IG07:
-       mov      bword ptr [rbx+0x50], r14
-       mov      dword ptr [rbx+0x58], r13d
+       mov      bword ptr [rbx+0x50], r13
+       mov      dword ptr [rbx+0x58], eax
        xor      eax, eax
        mov      dword ptr [rbx+0x10], eax
-						;; size=13 bbWeight=0.50 PerfScore 1.62
+						;; size=12 bbWeight=0.50 PerfScore 1.62
 G_M42350_IG08:
-       add      rsp, 40
+       add      rsp, 56
        pop      rbx
        pop      r12
        pop      r13
        pop      r14
        pop      r15
        pop      rbp
        ret      
 						;; size=15 bbWeight=1 PerfScore 4.25
 G_M42350_IG09:
        mov      rax, 0xD1FFAB1E      ; code for System.ThrowHelper:ThrowArgumentOutOfRangeException()
        call     [rax]System.ThrowHelper:ThrowArgumentOutOfRangeException()
        int3     
 						;; size=13 bbWeight=0.50 PerfScore 1.75
 G_M42350_IG10:
-       mov      rdi, r15
-       test     rdi, rdi
+       mov      r8, r15
+       test     r8, r8
        je       SHORT G_M42350_IG13
 						;; size=8 bbWeight=2 PerfScore 3.00
 G_M42350_IG11:
-       mov      r8, 0xD1FFAB1E      ; double[]
-       cmp      qword ptr [rdi], r8
+       mov      rdi, 0xD1FFAB1E      ; double[]
+       cmp      qword ptr [r8], rdi
        je       SHORT G_M42350_IG13
 						;; size=15 bbWeight=1 PerfScore 4.25
 G_M42350_IG12:
        mov      rsi, r15
-       mov      rdi, r8
        mov      r8, 0xD1FFAB1E      ; code for CORINFO_HELP_CHKCASTARRAY
        call     [r8]CORINFO_HELP_CHKCASTARRAY
-       mov      rdi, rax
-						;; size=22 bbWeight=0.50 PerfScore 2.00
+       mov      r8, rax
+       mov      rax, bword ptr [rbp-0x50]
+						;; size=23 bbWeight=0.50 PerfScore 2.38
 G_M42350_IG13:
-       mov      edx, dword ptr [rbp-0x2C]
+       mov      edx, dword ptr [rbp-0x30]
        sub      r12d, edx
-       test     rdi, rdi
+       test     r8, r8
        je       SHORT G_M42350_IG14
        mov      esi, edx
-       mov      r8d, r12d
-       add      rsi, r8
-       mov      r8d, dword ptr [rdi+0x08]
-       cmp      rsi, r8
+       mov      edi, r12d
+       add      rsi, rdi
+       mov      edi, dword ptr [r8+0x08]
+       cmp      rsi, rdi
        ja       SHORT G_M42350_IG09
        mov      r15d, edx
        jmp      SHORT G_M42350_IG15
 						;; size=33 bbWeight=2 PerfScore 17.50
 G_M42350_IG14:
-       mov      edi, edx
-       or       edi, r12d
+       mov      r8d, edx
+       or       r8d, r12d
        jne      SHORT G_M42350_IG09
-       xor      rdi, rdi
+       xor      r8, r8
        xor      r15d, r15d
        xor      r12d, r12d
-						;; size=15 bbWeight=2 PerfScore 4.50
+						;; size=17 bbWeight=2 PerfScore 4.50
 G_M42350_IG15:
-       mov      eax, r12d
-       mov      r12, gword ptr [rbp-0x50]
+       mov      rax, r8
+       mov      ecx, r12d
+       mov      r12, gword ptr [rbp-0x58]
        jmp      G_M42350_IG18
-						;; size=12 bbWeight=2 PerfScore 6.50
+						;; size=15 bbWeight=2 PerfScore 7.00
 G_M42350_IG16:
        mov      rdi, 0xD1FFAB1E      ; System.Buffers.ReadOnlySequenceSegment`1[double]
        mov      r8, 0xD1FFAB1E      ; code for CORINFO_HELP_CHKCASTCLASS
        call     [r8]CORINFO_HELP_CHKCASTCLASS
        cmp      rax, r15
        jne      SHORT G_M42350_IG17
-       mov      rdi, gword ptr [r15+0x18]
-       mov      ecx, dword ptr [r15+0x20]
-       mov      edx, dword ptr [r15+0x24]
-       mov      r15d, dword ptr [rbp-0x2C]
+       mov      r8, gword ptr [r15+0x18]
+       mov      edi, dword ptr [r15+0x20]
+       mov      esi, dword ptr [r15+0x24]
+       mov      r15d, dword ptr [rbp-0x30]
        sub      r12d, r15d
        mov      eax, r15d
-       mov      esi, r12d
-       add      rax, rsi
-       cmp      rax, rdx
-       ja       G_M42350_IG24
-       add      ecx, r15d
-       mov      r15d, ecx
-       mov      eax, r12d
-       mov      r12, gword ptr [rbp-0x50]
+       mov      ecx, r12d
+       add      rax, rcx
+       cmp      rax, rsi
+       ja       G_M42350_IG26
+       add      edi, r15d
+       mov      r15d, edi
+       mov      rax, r8
+       mov      ecx, r12d
+       mov      r12, gword ptr [rbp-0x58]
        jmp      SHORT G_M42350_IG18
-						;; size=80 bbWeight=2 PerfScore 35.50
+						;; size=83 bbWeight=2 PerfScore 36.00
 G_M42350_IG17:
        mov      rcx, gword ptr [rax+0x08]
        test     rcx, rcx
-       je       G_M42350_IG25
+       je       G_M42350_IG27
        mov      r12, rcx
-       mov      rdi, gword ptr [rax+0x18]
-       mov      ecx, dword ptr [rax+0x20]
-       mov      edx, dword ptr [rax+0x24]
-       mov      r15d, dword ptr [rbp-0x2C]
-       cmp      r15d, edx
-       ja       G_M42350_IG24
-       lea      eax, [rcx+r15]
-       sub      edx, r15d
-       mov      r15d, eax
-       mov      eax, edx
-						;; size=51 bbWeight=2 PerfScore 26.00
+       mov      r8, gword ptr [rax+0x18]
+       mov      edi, dword ptr [rax+0x20]
+       mov      esi, dword ptr [rax+0x24]
+       mov      r15d, dword ptr [rbp-0x30]
+       cmp      r15d, esi
+       ja       G_M42350_IG26
+       add      edi, r15d
+       sub      esi, r15d
+       mov      rax, r8
+       mov      r15d, edi
+       mov      ecx, esi
+						;; size=53 bbWeight=2 PerfScore 26.00
 G_M42350_IG18:
-       mov      ecx, 1
-       mov      gword ptr [rbp-0x50], r12
-       mov      edx, ecx
-       mov      r12d, eax
-       mov      rax, bword ptr [rbp-0x48]
-       jmp      SHORT G_M42350_IG20
-						;; size=20 bbWeight=2 PerfScore 9.50
+       mov      edx, 1
+       mov      dword ptr [rbp-0x44], ecx
+       mov      rcx, r12
+       mov      r8d, edx
+       mov      r12, rax
+       mov      rax, bword ptr [rbp-0x50]
+       jmp      SHORT G_M42350_IG22
+						;; size=23 bbWeight=2 PerfScore 10.00
 G_M42350_IG19:
-       xor      rdi, rdi
-       xor      r15d, r15d
-       xor      edx, edx
-       xor      r12d, r12d
-						;; size=10 bbWeight=2 PerfScore 2.00
+       mov      rcx, gword ptr [rbp-0x58]
+       xor      rdx, rdx
+       xor      r12, r12
+						;; size=9 bbWeight=2 PerfScore 3.00
 G_M42350_IG20:
-       mov      rcx, gword ptr [rbp-0x50]
-       mov      gword ptr [rax], rcx
-       xor      ecx, ecx
-       mov      dword ptr [rax+0x08], ecx
-       test     dl, dl
+       xor      r15d, r15d
+						;; size=3 bbWeight=2 PerfScore 0.50
+G_M42350_IG21:
+       mov      dword ptr [rbp-0x44], edx
+       xor      edi, edi
+       xor      r8d, r8d
+						;; size=8 bbWeight=2 PerfScore 3.00
+G_M42350_IG22:
+       mov      dword ptr [rbp-0x2C], r8d
+       mov      rdi, rax
+       mov      rsi, rcx
+       call     CORINFO_HELP_CHECKED_ASSIGN_REF
+       xor      edi, edi
+       mov      rax, bword ptr [rbp-0x50]
+       mov      dword ptr [rax+0x08], edi
+       cmp      byte  ptr [rbp-0x2C], 0
        je       G_M42350_IG03
        mov      gword ptr [rbx+0x18], r14
        mov      dword ptr [rbx+0x20], r13d
-       test     r12d, r12d
+       mov      r14d, dword ptr [rbp-0x44]
+       test     r14d, r14d
        jg       G_M42350_IG04
        xor      edi, edi
        mov      qword ptr [rbx+0x50], rdi
        mov      qword ptr [rbx+0x58], rdi
-						;; size=47 bbWeight=4 PerfScore 40.00
-G_M42350_IG21:
+						;; size=65 bbWeight=4 PerfScore 57.00
+G_M42350_IG23:
        mov      dword ptr [rbx+0x10], edi
 						;; size=3 bbWeight=4 PerfScore 4.00
-G_M42350_IG22:
+G_M42350_IG24:
        mov      rsi, gword ptr [rbx+0x28]
        mov      r14, rsi
        mov      r13d, dword ptr [rbx+0x30]
        mov      r15, gword ptr [rbx+0x40]
        mov      edi, dword ptr [rbx+0x48]
        mov      r12d, dword ptr [rbx+0x4C]
        lea      rax, bword ptr [rbx+0x28]
-       mov      bword ptr [rbp-0x48], rax
+       mov      bword ptr [rbp-0x50], rax
        xor      rcx, rcx
-       mov      gword ptr [rbp-0x50], rcx
+       mov      gword ptr [rbp-0x58], rcx
        test     rsi, rsi
-       je       SHORT G_M42350_IG19
-						;; size=41 bbWeight=4 PerfScore 57.00
-G_M42350_IG23:
+       je       G_M42350_IG19
+						;; size=45 bbWeight=4 PerfScore 57.00
+G_M42350_IG25:
        sar      edi, 31
        mov      edx, r12d
        sar      edx, 31
        lea      edi, [rdx+2*rdi]
        neg      edi
        mov      edx, dword ptr [rax+0x08]
-       mov      dword ptr [rbp-0x2C], edx
+       mov      dword ptr [rbp-0x30], edx
        and      r12d, 0xD1FFAB1E
        test     edi, edi
        je       G_M42350_IG16
+       mov      rax, bword ptr [rbp-0x50]
        cmp      rsi, r15
-       jne      SHORT G_M42350_IG25
+       jne      SHORT G_M42350_IG27
        cmp      edi, 1
        je       G_M42350_IG10
        mov      rsi, r15
        mov      rdi, 0xD1FFAB1E      ; System.Buffers.MemoryManager`1[double]
        mov      r8, 0xD1FFAB1E      ; code for CORINFO_HELP_CHKCASTCLASS
        call     [r8]CORINFO_HELP_CHKCASTCLASS
        mov      rdi, rax
        mov      rax, qword ptr [rax]
        mov      rax, qword ptr [rax+0x40]
        call     [rax+0x20]System.Buffers.MemoryManager`1[double]:get_Memory():System.Memory`1[double]:this
        mov      gword ptr [rbp-0x40], rax
        mov      qword ptr [rbp-0x38], rdx
-       mov      r15d, dword ptr [rbp-0x2C]
+       mov      r15d, dword ptr [rbp-0x30]
        sub      r12d, r15d
        mov      esi, r15d
        mov      edi, r12d
        add      rsi, rdi
        mov      edi, dword ptr [rbp-0x34]
        cmp      rsi, rdi
        ja       G_M42350_IG09
        add      r15d, dword ptr [rbp-0x38]
-       mov      rdi, gword ptr [rbp-0x40]
-       mov      eax, r12d
-       mov      r12, gword ptr [rbp-0x50]
+       mov      rax, gword ptr [rbp-0x40]
+       mov      ecx, r12d
+       mov      r12, gword ptr [rbp-0x58]
        jmp      G_M42350_IG18
-						;; size=144 bbWeight=2 PerfScore 65.00
-G_M42350_IG24:
+						;; size=148 bbWeight=2 PerfScore 67.00
+G_M42350_IG26:
        mov      edi, 33
        mov      rax, 0xD1FFAB1E      ; code for System.ThrowHelper:ThrowArgumentOutOfRangeException(int)
        call     [rax]System.ThrowHelper:ThrowArgumentOutOfRangeException(int)
        int3     
 						;; size=18 bbWeight=0.50 PerfScore 1.88
-G_M42350_IG25:
+G_M42350_IG27:
        mov      rax, 0xD1FFAB1E      ; code for System.ThrowHelper:ThrowInvalidOperationException_EndPositionNotReached()
        call     [rax]System.ThrowHelper:ThrowInvalidOperationException_EndPositionNotReached()
        int3     
 						;; size=13 bbWeight=0.50 PerfScore 1.75
 
-; Total bytes of code 703, prolog size 28, PerfScore 314.50, instruction count 202, allocated bytes for code 703 (MethodHash=a2155a91) for method System.Buffers.SequenceReader`1[double]:GetNextSpan():this (FullOpts)
+; Total bytes of code 757, prolog size 28, PerfScore 340.75, instruction count 215, allocated bytes for code 757 (MethodHash=a2155a91) for method System.Buffers.SequenceReader`1[double]:GetNextSpan():this (FullOpts)
 ; ============================================================

54 (7.68 % of base) - System.Buffers.SequenceReader`1[int]:GetNextSpan():this

 ; Assembly listing for method System.Buffers.SequenceReader`1[int]:GetNextSpan():this (FullOpts)
 ; Emitting BLENDED_CODE for X64 with AVX512 - Unix
 ; FullOpts code
 ; optimized code
 ; rbp based frame
 ; fully interruptible
 ; No PGO data
 ; 0 inlinees with PGO data; 24 single block inlinees; 7 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 this         [V00,T00] ( 18, 46   )   byref  ->  rbx         this single-def
 ;* V01 loc0         [V01    ] (  0,  0   )  struct (24) zero-ref    ld-addr-op <System.Buffers.ReadOnlySequence`1[int]>
 ;* V02 loc1         [V02    ] (  0,  0   )  struct (16) zero-ref    <System.SequencePosition>
 ;* V03 loc2         [V03    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op <System.ReadOnlyMemory`1[int]>
 ;* V04 loc3         [V04    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op <System.ReadOnlySpan`1[int]>
 ;# V05 OutArgs      [V05    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace"
 ;* V06 tmp1         [V06    ] (  0,  0   )  struct (16) zero-ref    "spilled call-like call argument" <System.ReadOnlySpan`1[int]>
-;  V07 tmp2         [V07,T02] (  4, 28   )   byref  ->  [rbp-0x48]  spill-single-def "Inlining Arg"
+;  V07 tmp2         [V07,T02] (  4, 28   )   byref  ->  [rbp-0x50]  spill-single-def "Inlining Arg"
 ;* V08 tmp3         [V08    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "Inline ldloca(s) first use temp" <System.SequencePosition>
-;  V09 tmp4         [V09,T24] (  2,  8   )     int  ->  rdx        
+;  V09 tmp4         [V09,T24] (  2,  8   )     int  ->  [rbp-0x2C]  spill-single-def
 ;* V10 tmp5         [V10    ] (  0,  0   )     int  ->  zero-ref   
 ;  V11 tmp6         [V11,T21] (  3,  8   )   ubyte  ->  registers   "Inline return value spill temp"
 ;  V12 tmp7         [V12,T10] (  4, 12   )     ref  ->  rsi         class-hnd "Inline stloc first use temp" <System.Object>
 ;  V13 tmp8         [V13,T32] (  3,  6   )     int  ->  rdi         "Inline stloc first use temp"
 ;* V14 tmp9         [V14    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "Inline stloc first use temp" <System.Object>
-;  V15 tmp10        [V15,T01] ( 14, 28   )     int  ->  [rbp-0x2C]  spill-single-def "Inline stloc first use temp"
+;  V15 tmp10        [V15,T01] ( 14, 28   )     int  ->  [rbp-0x30]  spill-single-def "Inline stloc first use temp"
 ;  V16 tmp11        [V16,T19] (  4,  8   )     int  ->  r12         "Inline stloc first use temp"
 ;* V17 tmp12        [V17    ] (  0,  0   )  struct (16) zero-ref    do-not-enreg[SR] multireg-ret "Return value temp for multireg return" <System.Memory`1[int]>
 ;  V18 tmp13        [V18    ] (  4,  8   )  struct (16) [rbp-0x40]  do-not-enreg[SBR] multireg-ret must-init ld-addr-op "Inline stloc first use temp" <System.Memory`1[int]>
 ;* V19 tmp14        [V19    ] (  0,  0   )  struct (16) zero-ref    "spilled call-like call argument" <System.Memory`1[int]>
 ;* V20 tmp15        [V20    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "NewObj constructor temp" <System.ReadOnlyMemory`1[int]>
 ;  V21 tmp16        [V21,T09] (  6, 12   )     ref  ->  rax         class-hnd "Inline stloc first use temp" <System.Buffers.ReadOnlySequenceSegment`1[int]>
 ;* V22 tmp17        [V22    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "Inline stloc first use temp" <System.ReadOnlyMemory`1[int]>
 ;  V23 tmp18        [V23,T30] (  3,  6   )     ref  ->  rcx         class-hnd "Inline stloc first use temp" <System.Buffers.ReadOnlySequenceSegment`1[int]>
 ;* V24 tmp19        [V24    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "NewObj constructor temp" <System.SequencePosition>
 ;* V25 tmp20        [V25    ] (  0,  0   )     int  ->  zero-ref    "Inlining Arg"
 ;* V26 tmp21        [V26    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "NewObj constructor temp" <System.ReadOnlyMemory`1[int]>
 ;* V27 tmp22        [V27    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "Inlining Arg" <System.Object>
-;  V28 tmp23        [V28,T25] (  2,  8   )     int  ->  rax         "Inlining Arg"
-;  V29 tmp24        [V29,T26] (  2,  8   )     int  ->  rdx         "Inlining Arg"
+;  V28 tmp23        [V28,T25] (  2,  8   )     int  ->  rdi         "Inlining Arg"
+;  V29 tmp24        [V29,T26] (  2,  8   )     int  ->  rsi         "Inlining Arg"
 ;  V30 tmp25        [V30,T13] (  3, 12   )     int  ->  r12         "Inlining Arg"
 ;* V31 tmp26        [V31    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "NewObj constructor temp" <System.ReadOnlyMemory`1[int]>
 ;* V32 tmp27        [V32    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "Inlining Arg" <System.Object>
-;  V33 tmp28        [V33,T27] (  2,  8   )     int  ->  rcx         "Inlining Arg"
-;  V34 tmp29        [V34,T04] (  4, 16   )     ref  ->  rdi         class-hnd "Inlining Arg" <int[]>
+;  V33 tmp28        [V33,T27] (  2,  8   )     int  ->  rdi         "Inlining Arg"
+;  V34 tmp29        [V34,T04] (  4, 16   )     ref  ->   r8         class-hnd "Inlining Arg" <int[]>
 ;  V35 tmp30        [V35,T05] (  4, 16   )     int  ->  r12         "Inlining Arg"
 ;  V36 tmp31        [V36,T14] (  3, 12   )     int  ->  r12         "Inlining Arg"
 ;* V37 tmp32        [V37    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "NewObj constructor temp" <System.Memory`1[int]>
 ;* V38 tmp33        [V38    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "Inlining Arg" <System.Object>
 ;  V39 tmp34        [V39,T28] (  2,  8   )     int  ->  r15         "Inlining Arg"
 ;* V40 tmp35        [V40    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "Inlining Arg" <System.Memory`1[int]>
 ;* V41 tmp36        [V41    ] (  0,  0   )  struct (16) zero-ref    "Inline return value spill temp" <System.ReadOnlySpan`1[int]>
-;  V42 tmp37        [V42,T51] (  6,  3   )   byref  ->  r14         "Inline stloc first use temp"
-;  V43 tmp38        [V43,T52] (  6,  3   )     int  ->  r13         "Inline stloc first use temp"
+;  V42 tmp37        [V42,T51] (  6,  3   )   byref  ->  r13         "Inline stloc first use temp"
+;  V43 tmp38        [V43,T52] (  6,  3   )     int  ->  rax         "Inline stloc first use temp"
 ;* V44 tmp39        [V44    ] (  0,  0   )     ref  ->  zero-ref    class-hnd single-def "Inline stloc first use temp" <System.Object>
 ;* V45 tmp40        [V45    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "NewObj constructor temp" <System.ReadOnlySpan`1[int]>
 ;* V46 tmp41        [V46    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "updating class info" <System.Buffers.MemoryManager`1[int]>
 ;* V47 tmp42        [V47    ] (  0,  0   )  struct (16) zero-ref    do-not-enreg[SBR] multireg-ret "Return value temp for multireg return" <System.Span`1[int]>
 ;* V48 tmp43        [V48    ] (  0,  0   )  struct (16) zero-ref    multireg-ret ld-addr-op "Inline stloc first use temp" <System.Span`1[int]>
-;  V49 tmp44        [V49,T56] (  3,  1.50)    long  ->  rax         "Inline stloc first use temp"
+;  V49 tmp44        [V49,T56] (  3,  1.50)    long  ->  rcx         "Inline stloc first use temp"
 ;* V50 tmp45        [V50    ] (  0,  0   )     int  ->  zero-ref    "Inline stloc first use temp"
 ;* V51 tmp46        [V51    ] (  0,  0   )     ref  ->  zero-ref    class-hnd single-def "updating class info" <int[]>
 ;* V52 tmp47        [V52    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "updating class info" <int[]>
-;  V53 tmp48        [V53,T53] (  2,  2   )   byref  ->  rax         single-def "Inlining Arg"
+;  V53 tmp48        [V53,T53] (  2,  2   )   byref  ->  rdi         single-def "Inlining Arg"
 ;* V54 tmp49        [V54    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "Inlining Arg" <System.Span`1[int]>
 ;* V55 tmp50        [V55    ] (  0,  0   )  struct (16) zero-ref    "Inlining Arg" <System.ReadOnlySpan`1[int]>
 ;  V56 tmp51        [V56,T54] (  2,  2   )     ref  ->  rsi         single-def "field V01._startObject (fldOffset=0x0)" P-INDEP
 ;  V57 tmp52        [V57,T03] ( 11, 20.50)     ref  ->  r15         "field V01._endObject (fldOffset=0x8)" P-INDEP
 ;  V58 tmp53        [V58,T35] (  2,  6   )     int  ->  rdi         "field V01._startInteger (fldOffset=0x10)" P-INDEP
 ;  V59 tmp54        [V59,T22] (  3,  8   )     int  ->  r12         "field V01._endInteger (fldOffset=0x14)" P-INDEP
 ;  V60 tmp55        [V60,T23] (  2,  8   )     ref  ->  r14         "field V02._object (fldOffset=0x0)" P-INDEP
 ;  V61 tmp56        [V61,T29] (  2,  8   )     int  ->  r13         "field V02._integer (fldOffset=0x8)" P-INDEP
-;  V62 tmp57        [V62,T08] ( 11, 13   )     ref  ->  rdi         "field V03._object (fldOffset=0x0)" P-INDEP
+;  V62 tmp57        [V62,T08] ( 11, 13   )     ref  ->  registers   "field V03._object (fldOffset=0x0)" P-INDEP
 ;  V63 tmp58        [V63,T15] (  6, 10.50)     int  ->  r15         "field V03._index (fldOffset=0x8)" P-INDEP
-;  V64 tmp59        [V64,T06] (  8, 15   )     int  ->  registers   "field V03._length (fldOffset=0xc)" P-INDEP
+;  V64 tmp59        [V64,T06] (  8, 15   )     int  ->  [rbp-0x44]  "field V03._length (fldOffset=0xc)" P-INDEP
 ;* V65 tmp60        [V65    ] (  0,  0   )   byref  ->  zero-ref    "field V04._reference (fldOffset=0x0)" P-INDEP
 ;* V66 tmp61        [V66    ] (  0,  0   )     int  ->  zero-ref    "field V04._length (fldOffset=0x8)" P-INDEP
 ;* V67 tmp62        [V67    ] (  0,  0   )   byref  ->  zero-ref    "field V06._reference (fldOffset=0x0)" P-INDEP
 ;* V68 tmp63        [V68    ] (  0,  0   )     int  ->  zero-ref    "field V06._length (fldOffset=0x8)" P-INDEP
-;  V69 tmp64        [V69,T17] (  3, 10   )     ref  ->  [rbp-0x50]  "field V08._object (fldOffset=0x0)" P-INDEP
+;  V69 tmp64        [V69,T17] (  3, 10   )     ref  ->  [rbp-0x58]  "field V08._object (fldOffset=0x0)" P-INDEP
 ;* V70 tmp65        [V70,T36] (  0,  0   )     int  ->  zero-ref    "field V08._integer (fldOffset=0x8)" P-INDEP
 ;  V71 tmp66        [V71,T38] (  2,  4   )     ref  ->  [rbp-0x40]  do-not-enreg[] "field V18._object (fldOffset=0x0)" P-DEP
 ;  V72 tmp67        [V72,T43] (  2,  4   )     int  ->  [rbp-0x38]  do-not-enreg[] "field V18._index (fldOffset=0x8)" P-DEP
 ;  V73 tmp68        [V73,T44] (  2,  4   )     int  ->  [rbp-0x34]  do-not-enreg[] "field V18._length (fldOffset=0xc)" P-DEP
 ;* V74 tmp69        [V74    ] (  0,  0   )     ref  ->  zero-ref    "field V19._object (fldOffset=0x0)" P-INDEP
 ;* V75 tmp70        [V75    ] (  0,  0   )     int  ->  zero-ref    "field V19._index (fldOffset=0x8)" P-INDEP
 ;* V76 tmp71        [V76    ] (  0,  0   )     int  ->  zero-ref    "field V19._length (fldOffset=0xc)" P-INDEP
-;  V77 tmp72        [V77,T31] (  3,  6   )     ref  ->  rdi         "field V20._object (fldOffset=0x0)" P-INDEP
+;  V77 tmp72        [V77,T31] (  3,  6   )     ref  ->   r8         "field V20._object (fldOffset=0x0)" P-INDEP
 ;  V78 tmp73        [V78,T33] (  3,  6   )     int  ->  r15         "field V20._index (fldOffset=0x8)" P-INDEP
 ;  V79 tmp74        [V79,T34] (  3,  6   )     int  ->  r12         "field V20._length (fldOffset=0xc)" P-INDEP
-;  V80 tmp75        [V80,T18] (  4,  8   )     ref  ->  rdi         "field V22._object (fldOffset=0x0)" P-INDEP
-;  V81 tmp76        [V81,T20] (  4,  8   )     int  ->  rcx         "field V22._index (fldOffset=0x8)" P-INDEP
-;  V82 tmp77        [V82,T16] (  5, 10   )     int  ->  rdx         "field V22._length (fldOffset=0xc)" P-INDEP
+;  V80 tmp75        [V80,T18] (  4,  8   )     ref  ->   r8         "field V22._object (fldOffset=0x0)" P-INDEP
+;  V81 tmp76        [V81,T20] (  4,  8   )     int  ->  rdi         "field V22._index (fldOffset=0x8)" P-INDEP
+;  V82 tmp77        [V82,T16] (  5, 10   )     int  ->  rsi         "field V22._length (fldOffset=0xc)" P-INDEP
 ;  V83 tmp78        [V83,T39] (  2,  4   )     ref  ->  rcx         "field V24._object (fldOffset=0x0)" P-INDEP
 ;* V84 tmp79        [V84,T55] (  0,  0   )     int  ->  zero-ref    "field V24._integer (fldOffset=0x8)" P-INDEP
-;  V85 tmp80        [V85,T40] (  2,  4   )     ref  ->  rdi         "field V26._object (fldOffset=0x0)" P-INDEP
+;  V85 tmp80        [V85,T40] (  2,  4   )     ref  ->  rax         "field V26._object (fldOffset=0x0)" P-INDEP
 ;  V86 tmp81        [V86,T45] (  2,  4   )     int  ->  r15         "field V26._index (fldOffset=0x8)" P-INDEP
-;  V87 tmp82        [V87,T46] (  2,  4   )     int  ->  rdx         "field V26._length (fldOffset=0xc)" P-INDEP
-;  V88 tmp83        [V88,T41] (  2,  4   )     ref  ->  rdi         "field V31._object (fldOffset=0x0)" P-INDEP
+;  V87 tmp82        [V87,T46] (  2,  4   )     int  ->  rsi         "field V26._length (fldOffset=0xc)" P-INDEP
+;  V88 tmp83        [V88,T41] (  2,  4   )     ref  ->   r8         "field V31._object (fldOffset=0x0)" P-INDEP
 ;  V89 tmp84        [V89,T47] (  2,  4   )     int  ->  r15         "field V31._index (fldOffset=0x8)" P-INDEP
 ;  V90 tmp85        [V90,T48] (  2,  4   )     int  ->  r12         "field V31._length (fldOffset=0xc)" P-INDEP
-;  V91 tmp86        [V91,T42] (  2,  4   )     ref  ->  rdi         "field V37._object (fldOffset=0x0)" P-INDEP
+;  V91 tmp86        [V91,T42] (  2,  4   )     ref  ->  rax         "field V37._object (fldOffset=0x0)" P-INDEP
 ;  V92 tmp87        [V92,T49] (  2,  4   )     int  ->  r15         "field V37._index (fldOffset=0x8)" P-INDEP
 ;  V93 tmp88        [V93,T50] (  2,  4   )     int  ->  r12         "field V37._length (fldOffset=0xc)" P-INDEP
 ;* V94 tmp89        [V94    ] (  0,  0   )     ref  ->  zero-ref    "field V40._object (fldOffset=0x0)" P-INDEP
 ;* V95 tmp90        [V95    ] (  0,  0   )     int  ->  zero-ref    "field V40._index (fldOffset=0x8)" P-INDEP
 ;* V96 tmp91        [V96    ] (  0,  0   )     int  ->  zero-ref    "field V40._length (fldOffset=0xc)" P-INDEP
 ;* V97 tmp92        [V97    ] (  0,  0   )   byref  ->  zero-ref    "field V41._reference (fldOffset=0x0)" P-INDEP
 ;* V98 tmp93        [V98    ] (  0,  0   )     int  ->  zero-ref    "field V41._length (fldOffset=0x8)" P-INDEP
-;  V99 tmp94        [V99,T57] (  2,  1   )   byref  ->  r14         single-def "field V45._reference (fldOffset=0x0)" P-INDEP
-;  V100 tmp95       [V100,T59] (  2,  1   )     int  ->  r13         "field V45._length (fldOffset=0x8)" P-INDEP
+;  V99 tmp94        [V99,T57] (  2,  1   )   byref  ->  r13         single-def "field V45._reference (fldOffset=0x0)" P-INDEP
+;  V100 tmp95       [V100,T59] (  2,  1   )     int  ->  rax         "field V45._length (fldOffset=0x8)" P-INDEP
 ;* V101 tmp96       [V101    ] (  0,  0   )   byref  ->  zero-ref    "field V47._reference (fldOffset=0x0)" P-DEP
 ;* V102 tmp97       [V102    ] (  0,  0   )     int  ->  zero-ref    "field V47._length (fldOffset=0x8)" P-DEP
-;  V103 tmp98       [V103,T58] (  2,  1   )   byref  ->  r14         "field V48._reference (fldOffset=0x0)" P-INDEP
-;  V104 tmp99       [V104,T60] (  2,  1   )     int  ->  r13         "field V48._length (fldOffset=0x8)" P-INDEP
+;  V103 tmp98       [V103,T58] (  2,  1   )   byref  ->  r13         "field V48._reference (fldOffset=0x0)" P-INDEP
+;  V104 tmp99       [V104,T60] (  2,  1   )     int  ->  rax         "field V48._length (fldOffset=0x8)" P-INDEP
 ;* V105 tmp100      [V105    ] (  0,  0   )   byref  ->  zero-ref    single-def "field V54._reference (fldOffset=0x0)" P-INDEP
 ;* V106 tmp101      [V106    ] (  0,  0   )     int  ->  zero-ref    "field V54._length (fldOffset=0x8)" P-INDEP
 ;* V107 tmp102      [V107    ] (  0,  0   )   byref  ->  zero-ref    "field V55._reference (fldOffset=0x0)" P-INDEP
 ;* V108 tmp103      [V108    ] (  0,  0   )     int  ->  zero-ref    "field V55._length (fldOffset=0x8)" P-INDEP
 ;  V109 tmp104      [V109,T11] (  3, 12   )     ref  ->  rax         "argument with side effect"
 ;  V110 cse0        [V110,T12] (  3, 12   )     ref  ->  rsi         "CSE #01: moderate"
-;  V111 rat0        [V111,T07] (  5, 15   )     ref  ->  rdi         "replacement local"
-;  V112 rat1        [V112,T37] (  3,  5   )    long  ->   r8         "CSE for expectedClsNode"
+;  V111 rat0        [V111,T07] (  5, 15   )     ref  ->   r8         "replacement local"
+;  V112 rat1        [V112,T37] (  3,  5   )    long  ->  rdi         "CSE for expectedClsNode"
 ;
-; Lcl frame size = 40
+; Lcl frame size = 56
 
 G_M7432_IG01:
        push     rbp
        push     r15
        push     r14
        push     r13
        push     r12
        push     rbx
-       sub      rsp, 40
-       lea      rbp, [rsp+0x50]
+       sub      rsp, 56
+       lea      rbp, [rsp+0x60]
        xor      eax, eax
        mov      qword ptr [rbp-0x40], rax
        mov      rbx, rdi
 						;; size=28 bbWeight=1 PerfScore 8.25
 G_M7432_IG02:
        mov      rsi, gword ptr [rbx+0x38]
        mov      r15, gword ptr [rbx+0x40]
        cmp      rsi, r15
-       jne      G_M7432_IG22
+       jne      G_M7432_IG24
 						;; size=17 bbWeight=1 PerfScore 5.25
 G_M7432_IG03:
        mov      byte  ptr [rbx+0x14], 0
        jmp      SHORT G_M7432_IG08
 						;; size=6 bbWeight=0.50 PerfScore 1.50
 G_M7432_IG04:
-       xor      r14, r14
-       xor      r13d, r13d
-       test     rdi, rdi
+       xor      r13, r13
+       xor      eax, eax
+       test     r12, r12
        je       SHORT G_M7432_IG07
-       mov      rax, qword ptr [rdi]
-       test     dword ptr [rax], 0xD1FFAB1E
+       mov      rdi, qword ptr [r12]
+       test     dword ptr [rdi], 0xD1FFAB1E
        jne      SHORT G_M7432_IG05
-       mov      rax, qword ptr [rdi]
+       mov      rdi, r12
+       mov      rax, qword ptr [r12]
        mov      rax, qword ptr [rax+0x40]
        call     [rax+0x28]System.Buffers.MemoryManager`1[int]:GetSpan():System.Span`1[int]:this
-       mov      r14, rax
-       mov      r13d, edx
+       mov      r13, rax
+       mov      eax, edx
        jmp      SHORT G_M7432_IG06
-						;; size=40 bbWeight=0.50 PerfScore 8.62
+						;; size=43 bbWeight=0.50 PerfScore 8.75
 G_M7432_IG05:
-       lea      r14, bword ptr [rdi+0x10]
-       mov      r13d, dword ptr [rdi+0x08]
-						;; size=8 bbWeight=0.50 PerfScore 1.25
+       lea      r13, bword ptr [r12+0x10]
+       mov      eax, dword ptr [r12+0x08]
+						;; size=10 bbWeight=0.50 PerfScore 1.25
 G_M7432_IG06:
        and      r15d, 0xD1FFAB1E
-       mov      eax, r15d
-       mov      ecx, r12d
-       add      rcx, rax
-       mov      edx, r13d
-       cmp      rcx, rdx
+       mov      ecx, r15d
+       mov      edx, r14d
+       add      rdx, rcx
+       mov      eax, eax
+       cmp      rdx, rax
        ja       SHORT G_M7432_IG09
-       lea      r14, bword ptr [r14+4*rax]
-       mov      r13d, r12d
-						;; size=31 bbWeight=0.50 PerfScore 1.62
+       lea      r13, bword ptr [r13+4*rcx]
+       mov      eax, r14d
+						;; size=31 bbWeight=0.50 PerfScore 2.38
 G_M7432_IG07:
-       mov      bword ptr [rbx+0x50], r14
-       mov      dword ptr [rbx+0x58], r13d
+       mov      bword ptr [rbx+0x50], r13
+       mov      dword ptr [rbx+0x58], eax
        xor      eax, eax
        mov      dword ptr [rbx+0x10], eax
-						;; size=13 bbWeight=0.50 PerfScore 1.62
+						;; size=12 bbWeight=0.50 PerfScore 1.62
 G_M7432_IG08:
-       add      rsp, 40
+       add      rsp, 56
        pop      rbx
        pop      r12
        pop      r13
        pop      r14
        pop      r15
        pop      rbp
        ret      
 						;; size=15 bbWeight=1 PerfScore 4.25
 G_M7432_IG09:
        mov      rax, 0xD1FFAB1E      ; code for System.ThrowHelper:ThrowArgumentOutOfRangeException()
        call     [rax]System.ThrowHelper:ThrowArgumentOutOfRangeException()
        int3     
 						;; size=13 bbWeight=0.50 PerfScore 1.75
 G_M7432_IG10:
-       mov      rdi, r15
-       test     rdi, rdi
+       mov      r8, r15
+       test     r8, r8
        je       SHORT G_M7432_IG13
 						;; size=8 bbWeight=2 PerfScore 3.00
 G_M7432_IG11:
-       mov      r8, 0xD1FFAB1E      ; int[]
-       cmp      qword ptr [rdi], r8
+       mov      rdi, 0xD1FFAB1E      ; int[]
+       cmp      qword ptr [r8], rdi
        je       SHORT G_M7432_IG13
 						;; size=15 bbWeight=1 PerfScore 4.25
 G_M7432_IG12:
        mov      rsi, r15
-       mov      rdi, r8
        mov      r8, 0xD1FFAB1E      ; code for CORINFO_HELP_CHKCASTARRAY
        call     [r8]CORINFO_HELP_CHKCASTARRAY
-       mov      rdi, rax
-						;; size=22 bbWeight=0.50 PerfScore 2.00
+       mov      r8, rax
+       mov      rax, bword ptr [rbp-0x50]
+						;; size=23 bbWeight=0.50 PerfScore 2.38
 G_M7432_IG13:
-       mov      edx, dword ptr [rbp-0x2C]
+       mov      edx, dword ptr [rbp-0x30]
        sub      r12d, edx
-       test     rdi, rdi
+       test     r8, r8
        je       SHORT G_M7432_IG14
        mov      esi, edx
-       mov      r8d, r12d
-       add      rsi, r8
-       mov      r8d, dword ptr [rdi+0x08]
-       cmp      rsi, r8
+       mov      edi, r12d
+       add      rsi, rdi
+       mov      edi, dword ptr [r8+0x08]
+       cmp      rsi, rdi
        ja       SHORT G_M7432_IG09
        mov      r15d, edx
        jmp      SHORT G_M7432_IG15
 						;; size=33 bbWeight=2 PerfScore 17.50
 G_M7432_IG14:
-       mov      edi, edx
-       or       edi, r12d
+       mov      r8d, edx
+       or       r8d, r12d
        jne      SHORT G_M7432_IG09
-       xor      rdi, rdi
+       xor      r8, r8
        xor      r15d, r15d
        xor      r12d, r12d
-						;; size=15 bbWeight=2 PerfScore 4.50
+						;; size=17 bbWeight=2 PerfScore 4.50
 G_M7432_IG15:
-       mov      eax, r12d
-       mov      r12, gword ptr [rbp-0x50]
+       mov      rax, r8
+       mov      ecx, r12d
+       mov      r12, gword ptr [rbp-0x58]
        jmp      G_M7432_IG18
-						;; size=12 bbWeight=2 PerfScore 6.50
+						;; size=15 bbWeight=2 PerfScore 7.00
 G_M7432_IG16:
        mov      rdi, 0xD1FFAB1E      ; System.Buffers.ReadOnlySequenceSegment`1[int]
        mov      r8, 0xD1FFAB1E      ; code for CORINFO_HELP_CHKCASTCLASS
        call     [r8]CORINFO_HELP_CHKCASTCLASS
        cmp      rax, r15
        jne      SHORT G_M7432_IG17
-       mov      rdi, gword ptr [r15+0x18]
-       mov      ecx, dword ptr [r15+0x20]
-       mov      edx, dword ptr [r15+0x24]
-       mov      r15d, dword ptr [rbp-0x2C]
+       mov      r8, gword ptr [r15+0x18]
+       mov      edi, dword ptr [r15+0x20]
+       mov      esi, dword ptr [r15+0x24]
+       mov      r15d, dword ptr [rbp-0x30]
        sub      r12d, r15d
        mov      eax, r15d
-       mov      esi, r12d
-       add      rax, rsi
-       cmp      rax, rdx
-       ja       G_M7432_IG24
-       add      ecx, r15d
-       mov      r15d, ecx
-       mov      eax, r12d
-       mov      r12, gword ptr [rbp-0x50]
+       mov      ecx, r12d
+       add      rax, rcx
+       cmp      rax, rsi
+       ja       G_M7432_IG26
+       add      edi, r15d
+       mov      r15d, edi
+       mov      rax, r8
+       mov      ecx, r12d
+       mov      r12, gword ptr [rbp-0x58]
        jmp      SHORT G_M7432_IG18
-						;; size=80 bbWeight=2 PerfScore 35.50
+						;; size=83 bbWeight=2 PerfScore 36.00
 G_M7432_IG17:
        mov      rcx, gword ptr [rax+0x08]
        test     rcx, rcx
-       je       G_M7432_IG25
+       je       G_M7432_IG27
        mov      r12, rcx
-       mov      rdi, gword ptr [rax+0x18]
-       mov      ecx, dword ptr [rax+0x20]
-       mov      edx, dword ptr [rax+0x24]
-       mov      r15d, dword ptr [rbp-0x2C]
-       cmp      r15d, edx
-       ja       G_M7432_IG24
-       lea      eax, [rcx+r15]
-       sub      edx, r15d
-       mov      r15d, eax
-       mov      eax, edx
-						;; size=51 bbWeight=2 PerfScore 26.00
+       mov      r8, gword ptr [rax+0x18]
+       mov      edi, dword ptr [rax+0x20]
+       mov      esi, dword ptr [rax+0x24]
+       mov      r15d, dword ptr [rbp-0x30]
+       cmp      r15d, esi
+       ja       G_M7432_IG26
+       add      edi, r15d
+       sub      esi, r15d
+       mov      rax, r8
+       mov      r15d, edi
+       mov      ecx, esi
+						;; size=53 bbWeight=2 PerfScore 26.00
 G_M7432_IG18:
-       mov      ecx, 1
-       mov      gword ptr [rbp-0x50], r12
-       mov      edx, ecx
-       mov      r12d, eax
-       mov      rax, bword ptr [rbp-0x48]
-       jmp      SHORT G_M7432_IG20
-						;; size=20 bbWeight=2 PerfScore 9.50
+       mov      edx, 1
+       mov      dword ptr [rbp-0x44], ecx
+       mov      rcx, r12
+       mov      r8d, edx
+       mov      r12, rax
+       mov      rax, bword ptr [rbp-0x50]
+       jmp      SHORT G_M7432_IG22
+						;; size=23 bbWeight=2 PerfScore 10.00
 G_M7432_IG19:
-       xor      rdi, rdi
-       xor      r15d, r15d
-       xor      edx, edx
-       xor      r12d, r12d
-						;; size=10 bbWeight=2 PerfScore 2.00
+       mov      rcx, gword ptr [rbp-0x58]
+       xor      rdx, rdx
+       xor      r12, r12
+						;; size=9 bbWeight=2 PerfScore 3.00
 G_M7432_IG20:
-       mov      rcx, gword ptr [rbp-0x50]
-       mov      gword ptr [rax], rcx
-       xor      ecx, ecx
-       mov      dword ptr [rax+0x08], ecx
-       test     dl, dl
+       xor      r15d, r15d
+						;; size=3 bbWeight=2 PerfScore 0.50
+G_M7432_IG21:
+       mov      dword ptr [rbp-0x44], edx
+       xor      edi, edi
+       xor      r8d, r8d
+						;; size=8 bbWeight=2 PerfScore 3.00
+G_M7432_IG22:
+       mov      dword ptr [rbp-0x2C], r8d
+       mov      rdi, rax
+       mov      rsi, rcx
+       call     CORINFO_HELP_CHECKED_ASSIGN_REF
+       xor      edi, edi
+       mov      rax, bword ptr [rbp-0x50]
+       mov      dword ptr [rax+0x08], edi
+       cmp      byte  ptr [rbp-0x2C], 0
        je       G_M7432_IG03
        mov      gword ptr [rbx+0x18], r14
        mov      dword ptr [rbx+0x20], r13d
-       test     r12d, r12d
+       mov      r14d, dword ptr [rbp-0x44]
+       test     r14d, r14d
        jg       G_M7432_IG04
        xor      edi, edi
        mov      qword ptr [rbx+0x50], rdi
        mov      qword ptr [rbx+0x58], rdi
-						;; size=47 bbWeight=4 PerfScore 40.00
-G_M7432_IG21:
+						;; size=65 bbWeight=4 PerfScore 57.00
+G_M7432_IG23:
        mov      dword ptr [rbx+0x10], edi
 						;; size=3 bbWeight=4 PerfScore 4.00
-G_M7432_IG22:
+G_M7432_IG24:
        mov      rsi, gword ptr [rbx+0x28]
        mov      r14, rsi
        mov      r13d, dword ptr [rbx+0x30]
        mov      r15, gword ptr [rbx+0x40]
        mov      edi, dword ptr [rbx+0x48]
        mov      r12d, dword ptr [rbx+0x4C]
        lea      rax, bword ptr [rbx+0x28]
-       mov      bword ptr [rbp-0x48], rax
+       mov      bword ptr [rbp-0x50], rax
        xor      rcx, rcx
-       mov      gword ptr [rbp-0x50], rcx
+       mov      gword ptr [rbp-0x58], rcx
        test     rsi, rsi
-       je       SHORT G_M7432_IG19
-						;; size=41 bbWeight=4 PerfScore 57.00
-G_M7432_IG23:
+       je       G_M7432_IG19
+						;; size=45 bbWeight=4 PerfScore 57.00
+G_M7432_IG25:
        sar      edi, 31
        mov      edx, r12d
        sar      edx, 31
        lea      edi, [rdx+2*rdi]
        neg      edi
        mov      edx, dword ptr [rax+0x08]
-       mov      dword ptr [rbp-0x2C], edx
+       mov      dword ptr [rbp-0x30], edx
        and      r12d, 0xD1FFAB1E
        test     edi, edi
        je       G_M7432_IG16
+       mov      rax, bword ptr [rbp-0x50]
        cmp      rsi, r15
-       jne      SHORT G_M7432_IG25
+       jne      SHORT G_M7432_IG27
        cmp      edi, 1
        je       G_M7432_IG10
        mov      rsi, r15
        mov      rdi, 0xD1FFAB1E      ; System.Buffers.MemoryManager`1[int]
        mov      r8, 0xD1FFAB1E      ; code for CORINFO_HELP_CHKCASTCLASS
        call     [r8]CORINFO_HELP_CHKCASTCLASS
        mov      rdi, rax
        mov      rax, qword ptr [rax]
        mov      rax, qword ptr [rax+0x40]
        call     [rax+0x20]System.Buffers.MemoryManager`1[int]:get_Memory():System.Memory`1[int]:this
        mov      gword ptr [rbp-0x40], rax
        mov      qword ptr [rbp-0x38], rdx
-       mov      r15d, dword ptr [rbp-0x2C]
+       mov      r15d, dword ptr [rbp-0x30]
        sub      r12d, r15d
        mov      esi, r15d
        mov      edi, r12d
        add      rsi, rdi
        mov      edi, dword ptr [rbp-0x34]
        cmp      rsi, rdi
        ja       G_M7432_IG09
        add      r15d, dword ptr [rbp-0x38]
-       mov      rdi, gword ptr [rbp-0x40]
-       mov      eax, r12d
-       mov      r12, gword ptr [rbp-0x50]
+       mov      rax, gword ptr [rbp-0x40]
+       mov      ecx, r12d
+       mov      r12, gword ptr [rbp-0x58]
        jmp      G_M7432_IG18
-						;; size=144 bbWeight=2 PerfScore 65.00
-G_M7432_IG24:
+						;; size=148 bbWeight=2 PerfScore 67.00
+G_M7432_IG26:
        mov      edi, 33
        mov      rax, 0xD1FFAB1E      ; code for System.ThrowHelper:ThrowArgumentOutOfRangeException(int)
        call     [rax]System.ThrowHelper:ThrowArgumentOutOfRangeException(int)
        int3     
 						;; size=18 bbWeight=0.50 PerfScore 1.88
-G_M7432_IG25:
+G_M7432_IG27:
        mov      rax, 0xD1FFAB1E      ; code for System.ThrowHelper:ThrowInvalidOperationException_EndPositionNotReached()
        call     [rax]System.ThrowHelper:ThrowInvalidOperationException_EndPositionNotReached()
        int3     
 						;; size=13 bbWeight=0.50 PerfScore 1.75
 
-; Total bytes of code 703, prolog size 28, PerfScore 314.50, instruction count 202, allocated bytes for code 703 (MethodHash=162ae2f7) for method System.Buffers.SequenceReader`1[int]:GetNextSpan():this (FullOpts)
+; Total bytes of code 757, prolog size 28, PerfScore 340.75, instruction count 215, allocated bytes for code 757 (MethodHash=162ae2f7) for method System.Buffers.SequenceReader`1[int]:GetNextSpan():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/396e66f8c7f33a7a35ea66ec16c1e583

[MihuBot]

Top method improvements

-25 (-3.92 % of base) - System.Text.Json.Utf8JsonReader:ConsumeSignMultiSegment(byref,byref,byref):ubyte:this

 ; Assembly listing for method System.Text.Json.Utf8JsonReader:ConsumeSignMultiSegment(byref,byref,byref):ubyte:this (FullOpts)
 ; Emitting BLENDED_CODE for X64 with AVX512 - Unix
 ; FullOpts code
 ; optimized code
 ; rbp based frame
 ; partially interruptible
 ; No PGO data
 ; 0 inlinees with PGO data; 3 single block inlinees; 9 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 this         [V00,T00] ( 46, 24   )   byref  ->  rbx         this single-def
 ;  V01 arg1         [V01,T03] ( 10,  6.50)   byref  ->  r13         single-def
 ;  V02 arg2         [V02,T02] ( 11,  7   )   byref  ->  r14         single-def
 ;  V03 arg3         [V03,T01] ( 17,  9.50)   byref  ->  r15         single-def
 ;  V04 loc0         [V04,T05] (  6,  3   )   ubyte  ->  rdx        
 ;* V05 loc1         [V05    ] (  0,  0   )  struct (16) zero-ref    multireg-arg ld-addr-op <System.ReadOnlySpan`1[ubyte]>
 ;# V06 OutArgs      [V06    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace"
 ;  V07 tmp1         [V07,T06] (  3,  3   )     int  ->  rax         "Span.get_Item index"
 ;  V08 tmp2         [V08,T07] (  3,  3   )     int  ->  rax         "Span.get_Item index"
 ;  V09 tmp3         [V09,T10] (  2,  1   )   ubyte  ->  rdi         "Inline return value spill temp"
 ;  V10 tmp4         [V10,T11] (  2,  1   )   ubyte  ->  rax         "Inline return value spill temp"
 ;  V11 tmp5         [V11,T12] (  2,  1   )   ubyte  ->  rdi         "Inline return value spill temp"
-;  V12 tmp6         [V12,T13] (  2,  1   )   ubyte  ->  rdi         "Inline return value spill temp"
+;  V12 tmp6         [V12,T13] (  2,  1   )   ubyte  ->  rcx         "Inline return value spill temp"
 ;  V13 tmp7         [V13,T04] ( 10,  5   )   byref  ->  rcx         "field V05._reference (fldOffset=0x0)" P-INDEP
 ;* V14 tmp8         [V14,T08] (  0,  0   )     int  ->  zero-ref    "field V05._length (fldOffset=0x8)" P-INDEP
 ;  V15 cse0         [V15,T09] (  3,  1.50)     int  ->  rdi         "CSE #03: moderate"
 ;
 ; Lcl frame size = 0
 
 G_M61387_IG01:
        push     rbp
        push     r15
        push     r14
        push     r13
        push     rbx
        lea      rbp, [rsp+0x20]
        mov      rbx, rdi
        mov      r13, rsi
        mov      r14, rdx
        mov      r15, rcx
 						;; size=25 bbWeight=1 PerfScore 6.50
 G_M61387_IG02:
        mov      edi, dword ptr [r14]
        cmp      edi, dword ptr [r13+0x08]
        jl       SHORT G_M61387_IG06
 						;; size=9 bbWeight=1 PerfScore 6.00
 G_M61387_IG03:
        cmp      byte  ptr [rbx+0x24], 0
        je       SHORT G_M61387_IG04
        cmp      byte  ptr [rbx+0x2B], 0
-       je       G_M61387_IG21
+       je       G_M61387_IG29
        movzx    rdi, byte  ptr [rbx+0x2A]
        test     edi, edi
-       jne      G_M61387_IG21
+       jne      G_M61387_IG29
 						;; size=29 bbWeight=0.50 PerfScore 5.62
 G_M61387_IG04:
        mov      rdi, rbx
        mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.Utf8JsonReader:GetNextSpan():ubyte:this
        call     [rax]System.Text.Json.Utf8JsonReader:GetNextSpan():ubyte:this
        test     eax, eax
-       je       G_M61387_IG17
+       je       G_M61387_IG23
        movsxd   rdi, dword ptr [r14]
        add      qword ptr [rbx+0x10], rdi
        mov      byte  ptr [rbx+0x2D], 1
        xor      edi, edi
        mov      dword ptr [r14], edi
 						;; size=39 bbWeight=0.50 PerfScore 7.00
 G_M61387_IG05:
        vmovdqu  xmm0, xmmword ptr [rbx+0x30]
        vmovdqu  xmmword ptr [r13], xmm0
 						;; size=11 bbWeight=0.50 PerfScore 3.00
 G_M61387_IG06:
        mov      edi, dword ptr [r14]
        mov      eax, edi
        cmp      eax, dword ptr [r13+0x08]
-       jae      G_M61387_IG22
+       jae      G_M61387_IG32
        mov      rcx, bword ptr [r13]
        movzx    rdx, byte  ptr [rcx+rax]
        cmp      edx, 43
        je       SHORT G_M61387_IG07
        cmp      edx, 45
        jne      SHORT G_M61387_IG11
 						;; size=33 bbWeight=0.50 PerfScore 6.38
 G_M61387_IG07:
        inc      edi
        mov      dword ptr [r14], edi
        inc      qword ptr [rbx+0x08]
        mov      edi, dword ptr [r14]
        cmp      edi, dword ptr [r13+0x08]
        jl       SHORT G_M61387_IG10
        cmp      byte  ptr [rbx+0x24], 0
        je       SHORT G_M61387_IG08
        cmp      byte  ptr [rbx+0x2B], 0
-       je       G_M61387_IG16
+       je       G_M61387_IG20
        movzx    rdi, byte  ptr [rbx+0x2A]
        test     edi, edi
-       jne      G_M61387_IG16
+       jne      G_M61387_IG20
 						;; size=47 bbWeight=0.50 PerfScore 10.75
 G_M61387_IG08:
        mov      rdi, rbx
        mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.Utf8JsonReader:GetNextSpan():ubyte:this
        call     [rax]System.Text.Json.Utf8JsonReader:GetNextSpan():ubyte:this
        test     eax, eax
-       je       G_M61387_IG14
+       je       SHORT G_M61387_IG16
        movsxd   rax, dword ptr [r14]
        add      qword ptr [rbx+0x10], rax
        mov      byte  ptr [rbx+0x2D], 1
        xor      eax, eax
        mov      dword ptr [r14], eax
-						;; size=39 bbWeight=0.50 PerfScore 7.00
+						;; size=35 bbWeight=0.50 PerfScore 7.00
 G_M61387_IG09:
        vmovdqu  xmm0, xmmword ptr [rbx+0x30]
        vmovdqu  xmmword ptr [r13], xmm0
 						;; size=11 bbWeight=0.50 PerfScore 3.00
 G_M61387_IG10:
        mov      eax, dword ptr [r14]
        cmp      eax, dword ptr [r13+0x08]
-       jae      G_M61387_IG22
-       mov      rdi, bword ptr [r13]
-       movzx    rdx, byte  ptr [rdi+rax]
+       jae      G_M61387_IG32
+       mov      rcx, bword ptr [r13]
+       movzx    rdx, byte  ptr [rcx+rax]
 						;; size=21 bbWeight=0.50 PerfScore 5.00
 G_M61387_IG11:
        lea      eax, [rdx-0x30]
        cmp      eax, 9
        ja       SHORT G_M61387_IG13
        mov      eax, 1
 						;; size=13 bbWeight=0.50 PerfScore 1.00
 G_M61387_IG12:
        pop      rbx
        pop      r13
        pop      r14
        pop      r15
        pop      rbp
        ret      
 						;; size=9 bbWeight=0.50 PerfScore 1.75
 G_M61387_IG13:
-       mov      rdi, qword ptr [r15]
-       mov      qword ptr [rbx+0x10], rdi
-       mov      edi, dword ptr [r15+0x10]
-       mov      dword ptr [rbx+0x20], edi
-       lea      rsi, bword ptr [r15+0x18]
-       lea      rdi, bword ptr [rbx+0x70]
-       call     CORINFO_HELP_ASSIGN_BYREF
-       movsq    
+       mov      rcx, qword ptr [r15]
+       mov      qword ptr [rbx+0x10], rcx
+       mov      ecx, dword ptr [r15+0x10]
+       mov      dword ptr [rbx+0x20], ecx
+						;; size=14 bbWeight=0.50 PerfScore 3.00
+G_M61387_IG14:
+       vmovdqu  xmm0, xmmword ptr [r15+0x18]
+       vmovdqu  xmmword ptr [rbx+0x70], xmm0
+						;; size=11 bbWeight=0.50 PerfScore 3.00
+G_M61387_IG15:
        xor      rcx, rcx
        xor      r8d, r8d
        mov      rdi, rbx
        mov      esi, 4
        mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.ThrowHelper:ThrowJsonReaderException(byref,int,ubyte,System.ReadOnlySpan`1[ubyte])
        call     [rax]System.Text.Json.ThrowHelper:ThrowJsonReaderException(byref,int,ubyte,System.ReadOnlySpan`1[ubyte])
        int3     
-						;; size=55 bbWeight=0.50 PerfScore 6.75
-G_M61387_IG14:
-       cmp      byte  ptr [rbx+0x24], 0
-       je       G_M61387_IG18
-       cmp      byte  ptr [rbx+0x2B], 0
-       je       SHORT G_M61387_IG15
-       movzx    rdi, byte  ptr [rbx+0x2A]
-       test     edi, edi
-       je       G_M61387_IG18
-						;; size=29 bbWeight=0.50 PerfScore 5.62
-G_M61387_IG15:
-       mov      rdi, qword ptr [r15]
-       mov      qword ptr [rbx+0x10], rdi
-       mov      edi, dword ptr [r15+0x10]
-       mov      dword ptr [rbx+0x20], edi
-       lea      rsi, bword ptr [r15+0x18]
-       lea      rdi, bword ptr [rbx+0x70]
-       call     CORINFO_HELP_ASSIGN_BYREF
-       movsq    
-       xor      rcx, rcx
-       xor      r8d, r8d
-       mov      rdi, rbx
-       mov      esi, 5
-       xor      edx, edx
-       mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.ThrowHelper:ThrowJsonReaderException(byref,int,ubyte,System.ReadOnlySpan`1[ubyte])
-       call     [rax]System.Text.Json.ThrowHelper:ThrowJsonReaderException(byref,int,ubyte,System.ReadOnlySpan`1[ubyte])
-       int3     
-						;; size=57 bbWeight=0.50 PerfScore 6.88
+						;; size=26 bbWeight=0.50 PerfScore 2.25
 G_M61387_IG16:
-       mov      rdi, qword ptr [r15]
-       mov      qword ptr [rbx+0x10], rdi
-       mov      edi, dword ptr [r15+0x10]
-       mov      dword ptr [rbx+0x20], edi
-       lea      rsi, bword ptr [r15+0x18]
-       lea      rdi, bword ptr [rbx+0x70]
-       call     CORINFO_HELP_ASSIGN_BYREF
-       movsq    
+       cmp      byte  ptr [rbx+0x24], 0
+       je       G_M61387_IG24
+       cmp      byte  ptr [rbx+0x2B], 0
+       je       SHORT G_M61387_IG17
+       movzx    rcx, byte  ptr [rbx+0x2A]
+       test     ecx, ecx
+       je       G_M61387_IG24
+						;; size=28 bbWeight=0.50 PerfScore 5.62
+G_M61387_IG17:
+       mov      rcx, qword ptr [r15]
+       mov      qword ptr [rbx+0x10], rcx
+       mov      ecx, dword ptr [r15+0x10]
+       mov      dword ptr [rbx+0x20], ecx
+						;; size=14 bbWeight=0.50 PerfScore 3.00
+G_M61387_IG18:
+       vmovdqu  xmm0, xmmword ptr [r15+0x18]
+       vmovdqu  xmmword ptr [rbx+0x70], xmm0
+						;; size=11 bbWeight=0.50 PerfScore 3.00
+G_M61387_IG19:
        xor      rcx, rcx
        xor      r8d, r8d
        mov      rdi, rbx
        mov      esi, 5
        xor      edx, edx
        mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.ThrowHelper:ThrowJsonReaderException(byref,int,ubyte,System.ReadOnlySpan`1[ubyte])
        call     [rax]System.Text.Json.ThrowHelper:ThrowJsonReaderException(byref,int,ubyte,System.ReadOnlySpan`1[ubyte])
        int3     
-						;; size=57 bbWeight=0.50 PerfScore 6.88
-G_M61387_IG17:
+						;; size=28 bbWeight=0.50 PerfScore 2.38
+G_M61387_IG20:
+       mov      rcx, qword ptr [r15]
+       mov      qword ptr [rbx+0x10], rcx
+       mov      ecx, dword ptr [r15+0x10]
+       mov      dword ptr [rbx+0x20], ecx
+						;; size=14 bbWeight=0.50 PerfScore 3.00
+G_M61387_IG21:
+       vmovdqu  xmm0, xmmword ptr [r15+0x18]
+       vmovdqu  xmmword ptr [rbx+0x70], xmm0
+						;; size=11 bbWeight=0.50 PerfScore 3.00
+G_M61387_IG22:
+       xor      rcx, rcx
+       xor      r8d, r8d
+       mov      rdi, rbx
+       mov      esi, 5
+       xor      edx, edx
+       mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.ThrowHelper:ThrowJsonReaderException(byref,int,ubyte,System.ReadOnlySpan`1[ubyte])
+       call     [rax]System.Text.Json.ThrowHelper:ThrowJsonReaderException(byref,int,ubyte,System.ReadOnlySpan`1[ubyte])
+       int3     
+						;; size=28 bbWeight=0.50 PerfScore 2.38
+G_M61387_IG23:
        cmp      byte  ptr [rbx+0x24], 0
-       je       SHORT G_M61387_IG18
+       je       SHORT G_M61387_IG24
        cmp      byte  ptr [rbx+0x2B], 0
-       je       SHORT G_M61387_IG20
+       je       SHORT G_M61387_IG26
        movzx    rax, byte  ptr [rbx+0x2A]
        test     eax, eax
-       jne      SHORT G_M61387_IG20
+       jne      SHORT G_M61387_IG26
 						;; size=20 bbWeight=0.50 PerfScore 5.62
-G_M61387_IG18:
+G_M61387_IG24:
        mov      eax, 2
 						;; size=5 bbWeight=0.50 PerfScore 0.12
-G_M61387_IG19:
+G_M61387_IG25:
        pop      rbx
        pop      r13
        pop      r14
        pop      r15
        pop      rbp
        ret      
 						;; size=9 bbWeight=0.50 PerfScore 1.75
-G_M61387_IG20:
-       mov      rdi, qword ptr [r15]
-       mov      qword ptr [rbx+0x10], rdi
-       mov      edi, dword ptr [r15+0x10]
-       mov      dword ptr [rbx+0x20], edi
-       lea      rsi, bword ptr [r15+0x18]
-       lea      rdi, bword ptr [rbx+0x70]
-       call     CORINFO_HELP_ASSIGN_BYREF
-       movsq    
+G_M61387_IG26:
+       mov      rcx, qword ptr [r15]
+       mov      qword ptr [rbx+0x10], rcx
+       mov      ecx, dword ptr [r15+0x10]
+       mov      dword ptr [rbx+0x20], ecx
+						;; size=14 bbWeight=0.50 PerfScore 3.00
+G_M61387_IG27:
+       vmovdqu  xmm0, xmmword ptr [r15+0x18]
+       vmovdqu  xmmword ptr [rbx+0x70], xmm0
+						;; size=11 bbWeight=0.50 PerfScore 3.00
+G_M61387_IG28:
        xor      rcx, rcx
        xor      r8d, r8d
        mov      rdi, rbx
        mov      esi, 5
        xor      edx, edx
        mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.ThrowHelper:ThrowJsonReaderException(byref,int,ubyte,System.ReadOnlySpan`1[ubyte])
        call     [rax]System.Text.Json.ThrowHelper:ThrowJsonReaderException(byref,int,ubyte,System.ReadOnlySpan`1[ubyte])
        int3     
-						;; size=57 bbWeight=0.50 PerfScore 6.88
-G_M61387_IG21:
-       mov      rdi, qword ptr [r15]
-       mov      qword ptr [rbx+0x10], rdi
-       mov      edi, dword ptr [r15+0x10]
-       mov      dword ptr [rbx+0x20], edi
-       lea      rsi, bword ptr [r15+0x18]
-       lea      rdi, bword ptr [rbx+0x70]
-       call     CORINFO_HELP_ASSIGN_BYREF
-       movsq    
+						;; size=28 bbWeight=0.50 PerfScore 2.38
+G_M61387_IG29:
+       mov      rcx, qword ptr [r15]
+       mov      qword ptr [rbx+0x10], rcx
+       mov      ecx, dword ptr [r15+0x10]
+       mov      dword ptr [rbx+0x20], ecx
+						;; size=14 bbWeight=0.50 PerfScore 3.00
+G_M61387_IG30:
+       vmovdqu  xmm0, xmmword ptr [r15+0x18]
+       vmovdqu  xmmword ptr [rbx+0x70], xmm0
+						;; size=11 bbWeight=0.50 PerfScore 3.00
+G_M61387_IG31:
        xor      rcx, rcx
        xor      r8d, r8d
        mov      rdi, rbx
        mov      esi, 5
        xor      edx, edx
        mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.ThrowHelper:ThrowJsonReaderException(byref,int,ubyte,System.ReadOnlySpan`1[ubyte])
        call     [rax]System.Text.Json.ThrowHelper:ThrowJsonReaderException(byref,int,ubyte,System.ReadOnlySpan`1[ubyte])
        int3     
-						;; size=57 bbWeight=0.50 PerfScore 6.88
-G_M61387_IG22:
+						;; size=28 bbWeight=0.50 PerfScore 2.38
+G_M61387_IG32:
        call     CORINFO_HELP_RNGCHKFAIL
        int3     
 						;; size=6 bbWeight=0 PerfScore 0.00
 
-; Total bytes of code 638, prolog size 13, PerfScore 110.38, instruction count 184, allocated bytes for code 638 (MethodHash=64fa1034) for method System.Text.Json.Utf8JsonReader:ConsumeSignMultiSegment(byref,byref,byref):ubyte:this (FullOpts)
+; Total bytes of code 613, prolog size 13, PerfScore 117.88, instruction count 174, allocated bytes for code 613 (MethodHash=64fa1034) for method System.Text.Json.Utf8JsonReader:ConsumeSignMultiSegment(byref,byref,byref):ubyte:this (FullOpts)
 ; ============================================================

-20 (-5.01 % of base) - System.Text.Json.Utf8JsonReader:ConsumeNegativeSignMultiSegment(byref,byref,byref):ubyte:this

 ; Assembly listing for method System.Text.Json.Utf8JsonReader:ConsumeNegativeSignMultiSegment(byref,byref,byref):ubyte:this (FullOpts)
 ; Emitting BLENDED_CODE for X64 with AVX512 - Unix
 ; FullOpts code
 ; optimized code
 ; rbp based frame
 ; partially interruptible
 ; No PGO data
 ; 0 inlinees with PGO data; 2 single block inlinees; 5 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 this         [V00,T00] ( 27, 14.50)   byref  ->  rbx         this single-def
 ;  V01 arg1         [V01,T03] (  8,  6   )   byref  ->  r13         single-def
 ;  V02 arg2         [V02,T02] (  9,  6   )   byref  ->  r14         single-def
 ;  V03 arg3         [V03,T01] ( 11,  6.50)   byref  ->  r15         single-def
 ;  V04 loc0         [V04,T07] (  3,  1.50)   ubyte  ->  rdx        
 ;* V05 loc1         [V05    ] (  0,  0   )  struct (16) zero-ref    multireg-arg ld-addr-op <System.ReadOnlySpan`1[ubyte]>
 ;# V06 OutArgs      [V06    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace"
 ;  V07 tmp1         [V07,T04] (  3,  6   )     int  ->  rdi         "Span.get_Item index"
 ;  V08 tmp2         [V08,T06] (  3,  3   )     int  ->  rax         "Span.get_Item index"
 ;  V09 tmp3         [V09,T09] (  2,  1   )   ubyte  ->  rdi         "Inline return value spill temp"
 ;  V10 tmp4         [V10,T10] (  2,  1   )   ubyte  ->  rax         "Inline return value spill temp"
 ;  V11 tmp5         [V11,T05] (  6,  3   )   byref  ->  rcx         "field V05._reference (fldOffset=0x0)" P-INDEP
 ;* V12 tmp6         [V12,T08] (  0,  0   )     int  ->  zero-ref    "field V05._length (fldOffset=0x8)" P-INDEP
 ;
 ; Lcl frame size = 0
 
 G_M28488_IG01:
        push     rbp
        push     r15
        push     r14
        push     r13
        push     rbx
        lea      rbp, [rsp+0x20]
        mov      rbx, rdi
        mov      r13, rsi
        mov      r14, rdx
        mov      r15, rcx
 						;; size=25 bbWeight=1 PerfScore 6.50
 G_M28488_IG02:
        mov      edi, dword ptr [r14]
        cmp      edi, dword ptr [r13+0x08]
-       jae      G_M28488_IG15
+       jae      G_M28488_IG21
        mov      rax, bword ptr [r13]
        cmp      byte  ptr [rax+rdi], 45
-       jne      G_M28488_IG07
-						;; size=27 bbWeight=1 PerfScore 12.00
+       jne      SHORT G_M28488_IG07
+						;; size=23 bbWeight=1 PerfScore 12.00
 G_M28488_IG03:
        inc      dword ptr [r14]
        inc      qword ptr [rbx+0x08]
        mov      edi, dword ptr [r14]
        cmp      edi, dword ptr [r13+0x08]
        jl       SHORT G_M28488_IG06
        cmp      byte  ptr [rbx+0x24], 0
        je       SHORT G_M28488_IG04
        cmp      byte  ptr [rbx+0x2B], 0
-       je       G_M28488_IG14
+       je       G_M28488_IG18
        movzx    rdi, byte  ptr [rbx+0x2A]
        test     edi, edi
-       jne      G_M28488_IG14
+       jne      G_M28488_IG18
 						;; size=45 bbWeight=0.50 PerfScore 11.62
 G_M28488_IG04:
        mov      rdi, rbx
        mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.Utf8JsonReader:GetNextSpan():ubyte:this
        call     [rax]System.Text.Json.Utf8JsonReader:GetNextSpan():ubyte:this
        test     eax, eax
-       je       G_M28488_IG10
+       je       SHORT G_M28488_IG12
        movsxd   rax, dword ptr [r14]
        add      qword ptr [rbx+0x10], rax
        mov      byte  ptr [rbx+0x2D], 1
        xor      eax, eax
        mov      dword ptr [r14], eax
-						;; size=39 bbWeight=0.50 PerfScore 7.00
+						;; size=35 bbWeight=0.50 PerfScore 7.00
 G_M28488_IG05:
        vmovdqu  xmm0, xmmword ptr [rbx+0x30]
        vmovdqu  xmmword ptr [r13], xmm0
 						;; size=11 bbWeight=0.50 PerfScore 3.00
 G_M28488_IG06:
        mov      eax, dword ptr [r14]
        cmp      eax, dword ptr [r13+0x08]
-       jae      G_M28488_IG15
-       mov      rdi, bword ptr [r13]
-       movzx    rdx, byte  ptr [rdi+rax]
+       jae      G_M28488_IG21
+       mov      rcx, bword ptr [r13]
+       movzx    rdx, byte  ptr [rcx+rax]
        lea      eax, [rdx-0x30]
        cmp      eax, 9
        ja       SHORT G_M28488_IG09
 						;; size=29 bbWeight=0.50 PerfScore 5.88
 G_M28488_IG07:
        mov      eax, 1
 						;; size=5 bbWeight=0.50 PerfScore 0.12
 G_M28488_IG08:
        pop      rbx
        pop      r13
        pop      r14
        pop      r15
        pop      rbp
        ret      
 						;; size=9 bbWeight=0.50 PerfScore 1.75
 G_M28488_IG09:
-       mov      rdi, qword ptr [r15]
-       mov      qword ptr [rbx+0x10], rdi
-       mov      edi, dword ptr [r15+0x10]
-       mov      dword ptr [rbx+0x20], edi
-       lea      rsi, bword ptr [r15+0x18]
-       lea      rdi, bword ptr [rbx+0x70]
-       call     CORINFO_HELP_ASSIGN_BYREF
-       movsq    
+       mov      rcx, qword ptr [r15]
+       mov      qword ptr [rbx+0x10], rcx
+       mov      ecx, dword ptr [r15+0x10]
+       mov      dword ptr [rbx+0x20], ecx
+						;; size=14 bbWeight=0.50 PerfScore 3.00
+G_M28488_IG10:
+       vmovdqu  xmm0, xmmword ptr [r15+0x18]
+       vmovdqu  xmmword ptr [rbx+0x70], xmm0
+						;; size=11 bbWeight=0.50 PerfScore 3.00
+G_M28488_IG11:
        xor      rcx, rcx
        xor      r8d, r8d
        mov      rdi, rbx
        mov      esi, 4
        mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.ThrowHelper:ThrowJsonReaderException(byref,int,ubyte,System.ReadOnlySpan`1[ubyte])
        call     [rax]System.Text.Json.ThrowHelper:ThrowJsonReaderException(byref,int,ubyte,System.ReadOnlySpan`1[ubyte])
        int3     
-						;; size=55 bbWeight=0.50 PerfScore 6.75
-G_M28488_IG10:
+						;; size=26 bbWeight=0.50 PerfScore 2.25
+G_M28488_IG12:
        cmp      byte  ptr [rbx+0x24], 0
-       je       SHORT G_M28488_IG11
-       cmp      byte  ptr [rbx+0x2B], 0
        je       SHORT G_M28488_IG13
+       cmp      byte  ptr [rbx+0x2B], 0
+       je       SHORT G_M28488_IG15
        movzx    rax, byte  ptr [rbx+0x2A]
        test     eax, eax
-       jne      SHORT G_M28488_IG13
+       jne      SHORT G_M28488_IG15
 						;; size=20 bbWeight=0.50 PerfScore 5.62
-G_M28488_IG11:
+G_M28488_IG13:
        mov      eax, 2
 						;; size=5 bbWeight=0.50 PerfScore 0.12
-G_M28488_IG12:
+G_M28488_IG14:
        pop      rbx
        pop      r13
        pop      r14
        pop      r15
        pop      rbp
        ret      
 						;; size=9 bbWeight=0.50 PerfScore 1.75
-G_M28488_IG13:
-       mov      rdi, qword ptr [r15]
-       mov      qword ptr [rbx+0x10], rdi
-       mov      edi, dword ptr [r15+0x10]
-       mov      dword ptr [rbx+0x20], edi
-       lea      rsi, bword ptr [r15+0x18]
-       lea      rdi, bword ptr [rbx+0x70]
-       call     CORINFO_HELP_ASSIGN_BYREF
-       movsq    
-       xor      rcx, rcx
-       xor      r8d, r8d
-       mov      rdi, rbx
-       mov      esi, 5
-       xor      edx, edx
-       mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.ThrowHelper:ThrowJsonReaderException(byref,int,ubyte,System.ReadOnlySpan`1[ubyte])
-       call     [rax]System.Text.Json.ThrowHelper:ThrowJsonReaderException(byref,int,ubyte,System.ReadOnlySpan`1[ubyte])
-       int3     
-						;; size=57 bbWeight=0.50 PerfScore 6.88
-G_M28488_IG14:
-       mov      rdi, qword ptr [r15]
-       mov      qword ptr [rbx+0x10], rdi
-       mov      edi, dword ptr [r15+0x10]
-       mov      dword ptr [rbx+0x20], edi
-       lea      rsi, bword ptr [r15+0x18]
-       lea      rdi, bword ptr [rbx+0x70]
-       call     CORINFO_HELP_ASSIGN_BYREF
-       movsq    
-       xor      rcx, rcx
-       xor      r8d, r8d
-       mov      rdi, rbx
-       mov      esi, 5
-       xor      edx, edx
-       mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.ThrowHelper:ThrowJsonReaderException(byref,int,ubyte,System.ReadOnlySpan`1[ubyte])
-       call     [rax]System.Text.Json.ThrowHelper:ThrowJsonReaderException(byref,int,ubyte,System.ReadOnlySpan`1[ubyte])
-       int3     
-						;; size=57 bbWeight=0.50 PerfScore 6.88
 G_M28488_IG15:
+       mov      rcx, qword ptr [r15]
+       mov      qword ptr [rbx+0x10], rcx
+       mov      ecx, dword ptr [r15+0x10]
+       mov      dword ptr [rbx+0x20], ecx
+						;; size=14 bbWeight=0.50 PerfScore 3.00
+G_M28488_IG16:
+       vmovdqu  xmm0, xmmword ptr [r15+0x18]
+       vmovdqu  xmmword ptr [rbx+0x70], xmm0
+						;; size=11 bbWeight=0.50 PerfScore 3.00
+G_M28488_IG17:
+       xor      rcx, rcx
+       xor      r8d, r8d
+       mov      rdi, rbx
+       mov      esi, 5
+       xor      edx, edx
+       mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.ThrowHelper:ThrowJsonReaderException(byref,int,ubyte,System.ReadOnlySpan`1[ubyte])
+       call     [rax]System.Text.Json.ThrowHelper:ThrowJsonReaderException(byref,int,ubyte,System.ReadOnlySpan`1[ubyte])
+       int3     
+						;; size=28 bbWeight=0.50 PerfScore 2.38
+G_M28488_IG18:
+       mov      rcx, qword ptr [r15]
+       mov      qword ptr [rbx+0x10], rcx
+       mov      ecx, dword ptr [r15+0x10]
+       mov      dword ptr [rbx+0x20], ecx
+						;; size=14 bbWeight=0.50 PerfScore 3.00
+G_M28488_IG19:
+       vmovdqu  xmm0, xmmword ptr [r15+0x18]
+       vmovdqu  xmmword ptr [rbx+0x70], xmm0
+						;; size=11 bbWeight=0.50 PerfScore 3.00
+G_M28488_IG20:
+       xor      rcx, rcx
+       xor      r8d, r8d
+       mov      rdi, rbx
+       mov      esi, 5
+       xor      edx, edx
+       mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.ThrowHelper:ThrowJsonReaderException(byref,int,ubyte,System.ReadOnlySpan`1[ubyte])
+       call     [rax]System.Text.Json.ThrowHelper:ThrowJsonReaderException(byref,int,ubyte,System.ReadOnlySpan`1[ubyte])
+       int3     
+						;; size=28 bbWeight=0.50 PerfScore 2.38
+G_M28488_IG21:
        call     CORINFO_HELP_RNGCHKFAIL
        int3     
 						;; size=6 bbWeight=0 PerfScore 0.00
 
-; Total bytes of code 399, prolog size 13, PerfScore 75.88, instruction count 118, allocated bytes for code 399 (MethodHash=2b9c90b7) for method System.Text.Json.Utf8JsonReader:ConsumeNegativeSignMultiSegment(byref,byref,byref):ubyte:this (FullOpts)
+; Total bytes of code 379, prolog size 13, PerfScore 80.38, instruction count 112, allocated bytes for code 379 (MethodHash=2b9c90b7) for method System.Text.Json.Utf8JsonReader:ConsumeNegativeSignMultiSegment(byref,byref,byref):ubyte:this (FullOpts)
 ; ============================================================

-12 (-3.06 % of base) - System.Text.Json.Utf8JsonReader:ConsumeDecimalDigitsMultiSegment(byref,byref,byref):ubyte:this

 ; Assembly listing for method System.Text.Json.Utf8JsonReader:ConsumeDecimalDigitsMultiSegment(byref,byref,byref):ubyte:this (FullOpts)
 ; Emitting BLENDED_CODE for X64 with AVX512 - Unix
 ; FullOpts code
 ; optimized code
 ; rbp based frame
 ; fully interruptible
 ; No PGO data
 ; 0 inlinees with PGO data; 2 single block inlinees; 5 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 this         [V00,T00] ( 28, 15   )   byref  ->  rbx         this single-def
 ;  V01 arg1         [V01,T03] (  7,  5   )   byref  ->  r13         single-def
 ;  V02 arg2         [V02,T02] (  8,  5.50)   byref  ->  r14         single-def
 ;  V03 arg3         [V03,T01] ( 11,  6.50)   byref  ->  r15         single-def
 ;  V04 loc0         [V04,T06] (  3,  1.50)   ubyte  ->  rdx        
 ;* V05 loc1         [V05    ] (  0,  0   )  struct (16) zero-ref    multireg-arg ld-addr-op <System.ReadOnlySpan`1[ubyte]>
 ;# V06 OutArgs      [V06    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace"
 ;  V07 tmp1         [V07,T05] (  3,  3   )     int  ->  rsi         "Span.get_Item index"
 ;  V08 tmp2         [V08,T09] (  2,  1   )   ubyte  ->  rdi         "Inline return value spill temp"
 ;  V09 tmp3         [V09,T10] (  2,  1   )   ubyte  ->  rax         "Inline return value spill temp"
 ;  V10 tmp4         [V10,T04] (  6,  3   )   byref  ->  rcx         "field V05._reference (fldOffset=0x0)" P-INDEP
 ;* V11 tmp5         [V11,T07] (  0,  0   )     int  ->  zero-ref    "field V05._length (fldOffset=0x8)" P-INDEP
 ;  V12 cse0         [V12,T08] (  3,  1.50)     int  ->  rdi         "CSE #03: moderate"
 ;
 ; Lcl frame size = 0
 
 G_M49655_IG01:
        push     rbp
        push     r15
        push     r14
        push     r13
        push     rbx
        lea      rbp, [rsp+0x20]
        mov      rbx, rdi
        mov      r13, rsi
        mov      r14, rdx
        mov      r15, rcx
 						;; size=25 bbWeight=1 PerfScore 6.50
 G_M49655_IG02:
        mov      edi, dword ptr [r14]
        cmp      edi, dword ptr [r13+0x08]
        jl       SHORT G_M49655_IG06
 						;; size=9 bbWeight=1 PerfScore 6.00
 G_M49655_IG03:
        cmp      byte  ptr [rbx+0x24], 0
        je       SHORT G_M49655_IG04
        cmp      byte  ptr [rbx+0x2B], 0
-       je       G_M49655_IG13
+       je       G_M49655_IG17
        movzx    rdi, byte  ptr [rbx+0x2A]
        test     edi, edi
-       jne      G_M49655_IG13
+       jne      G_M49655_IG17
 						;; size=29 bbWeight=0.50 PerfScore 5.62
 G_M49655_IG04:
        mov      rdi, rbx
        mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.Utf8JsonReader:GetNextSpan():ubyte:this
        call     [rax]System.Text.Json.Utf8JsonReader:GetNextSpan():ubyte:this
        test     eax, eax
-       je       G_M49655_IG09
+       je       G_M49655_IG11
        movsxd   rdi, dword ptr [r14]
        add      qword ptr [rbx+0x10], rdi
        mov      byte  ptr [rbx+0x2D], 1
        xor      edi, edi
        mov      dword ptr [r14], edi
 						;; size=39 bbWeight=0.50 PerfScore 7.00
 G_M49655_IG05:
        vmovdqu  xmm0, xmmword ptr [rbx+0x30]
        vmovdqu  xmmword ptr [r13], xmm0
 						;; size=11 bbWeight=0.50 PerfScore 3.00
 G_M49655_IG06:
        mov      edi, dword ptr [r14]
        mov      esi, edi
        cmp      esi, dword ptr [r13+0x08]
-       jae      G_M49655_IG14
+       jae      G_M49655_IG20
        mov      rdx, bword ptr [r13]
        movzx    rdx, byte  ptr [rdx+rsi]
        lea      esi, [rdx-0x30]
        cmp      esi, 9
        ja       SHORT G_M49655_IG08
        inc      edi
        mov      dword ptr [r14], edi
        inc      qword ptr [rbx+0x08]
        mov      rdi, rbx
        mov      rsi, r13
        mov      rdx, r14
        mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.Utf8JsonReader:ConsumeIntegerDigitsMultiSegment(byref,byref):ubyte:this
 						;; size=59 bbWeight=0.50 PerfScore 8.62
 G_M49655_IG07:
        pop      rbx
        pop      r13
        pop      r14
        pop      r15
        pop      rbp
        tail.jmp [rax]System.Text.Json.Utf8JsonReader:ConsumeIntegerDigitsMultiSegment(byref,byref):ubyte:this
 						;; size=11 bbWeight=0.50 PerfScore 2.25
 G_M49655_IG08:
-       mov      rdi, qword ptr [r15]
-       mov      qword ptr [rbx+0x10], rdi
-       mov      edi, dword ptr [r15+0x10]
-       mov      dword ptr [rbx+0x20], edi
-       lea      rsi, bword ptr [r15+0x18]
-       lea      rdi, bword ptr [rbx+0x70]
-       call     CORINFO_HELP_ASSIGN_BYREF
-       movsq    
+       mov      rcx, qword ptr [r15]
+       mov      qword ptr [rbx+0x10], rcx
+       mov      ecx, dword ptr [r15+0x10]
+       mov      dword ptr [rbx+0x20], ecx
+						;; size=14 bbWeight=0.50 PerfScore 3.00
+G_M49655_IG09:
+       vmovdqu  xmm0, xmmword ptr [r15+0x18]
+       vmovdqu  xmmword ptr [rbx+0x70], xmm0
+						;; size=11 bbWeight=0.50 PerfScore 3.00
+G_M49655_IG10:
        xor      rcx, rcx
        xor      r8d, r8d
        mov      rdi, rbx
        mov      esi, 3
        mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.ThrowHelper:ThrowJsonReaderException(byref,int,ubyte,System.ReadOnlySpan`1[ubyte])
        call     [rax]System.Text.Json.ThrowHelper:ThrowJsonReaderException(byref,int,ubyte,System.ReadOnlySpan`1[ubyte])
        int3     
-						;; size=55 bbWeight=0.50 PerfScore 6.75
-G_M49655_IG09:
+						;; size=26 bbWeight=0.50 PerfScore 2.25
+G_M49655_IG11:
        cmp      byte  ptr [rbx+0x24], 0
-       je       SHORT G_M49655_IG10
-       cmp      byte  ptr [rbx+0x2B], 0
        je       SHORT G_M49655_IG12
+       cmp      byte  ptr [rbx+0x2B], 0
+       je       SHORT G_M49655_IG14
        movzx    rax, byte  ptr [rbx+0x2A]
        test     eax, eax
-       jne      SHORT G_M49655_IG12
+       jne      SHORT G_M49655_IG14
 						;; size=20 bbWeight=0.50 PerfScore 5.62
-G_M49655_IG10:
+G_M49655_IG12:
        mov      eax, 2
 						;; size=5 bbWeight=0.50 PerfScore 0.12
-G_M49655_IG11:
+G_M49655_IG13:
        pop      rbx
        pop      r13
        pop      r14
        pop      r15
        pop      rbp
        ret      
 						;; size=9 bbWeight=0.50 PerfScore 1.75
-G_M49655_IG12:
-       mov      rdi, qword ptr [r15]
-       mov      qword ptr [rbx+0x10], rdi
-       mov      edi, dword ptr [r15+0x10]
-       mov      dword ptr [rbx+0x20], edi
-       lea      rsi, bword ptr [r15+0x18]
-       lea      rdi, bword ptr [rbx+0x70]
-       call     CORINFO_HELP_ASSIGN_BYREF
-       movsq    
-       xor      rcx, rcx
-       xor      r8d, r8d
-       mov      rdi, rbx
-       mov      esi, 5
-       xor      edx, edx
-       mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.ThrowHelper:ThrowJsonReaderException(byref,int,ubyte,System.ReadOnlySpan`1[ubyte])
-       call     [rax]System.Text.Json.ThrowHelper:ThrowJsonReaderException(byref,int,ubyte,System.ReadOnlySpan`1[ubyte])
-       int3     
-						;; size=57 bbWeight=0.50 PerfScore 6.88
-G_M49655_IG13:
-       mov      rdi, qword ptr [r15]
-       mov      qword ptr [rbx+0x10], rdi
-       mov      edi, dword ptr [r15+0x10]
-       mov      dword ptr [rbx+0x20], edi
-       lea      rsi, bword ptr [r15+0x18]
-       lea      rdi, bword ptr [rbx+0x70]
-       call     CORINFO_HELP_ASSIGN_BYREF
-       movsq    
-       xor      rcx, rcx
-       xor      r8d, r8d
-       mov      rdi, rbx
-       mov      esi, 5
-       xor      edx, edx
-       mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.ThrowHelper:ThrowJsonReaderException(byref,int,ubyte,System.ReadOnlySpan`1[ubyte])
-       call     [rax]System.Text.Json.ThrowHelper:ThrowJsonReaderException(byref,int,ubyte,System.ReadOnlySpan`1[ubyte])
-       int3     
-						;; size=57 bbWeight=0.50 PerfScore 6.88
 G_M49655_IG14:
+       mov      rcx, qword ptr [r15]
+       mov      qword ptr [rbx+0x10], rcx
+       mov      ecx, dword ptr [r15+0x10]
+       mov      dword ptr [rbx+0x20], ecx
+						;; size=14 bbWeight=0.50 PerfScore 3.00
+G_M49655_IG15:
+       vmovdqu  xmm0, xmmword ptr [r15+0x18]
+       vmovdqu  xmmword ptr [rbx+0x70], xmm0
+						;; size=11 bbWeight=0.50 PerfScore 3.00
+G_M49655_IG16:
+       xor      rcx, rcx
+       xor      r8d, r8d
+       mov      rdi, rbx
+       mov      esi, 5
+       xor      edx, edx
+       mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.ThrowHelper:ThrowJsonReaderException(byref,int,ubyte,System.ReadOnlySpan`1[ubyte])
+       call     [rax]System.Text.Json.ThrowHelper:ThrowJsonReaderException(byref,int,ubyte,System.ReadOnlySpan`1[ubyte])
+       int3     
+						;; size=28 bbWeight=0.50 PerfScore 2.38
+G_M49655_IG17:
+       mov      rcx, qword ptr [r15]
+       mov      qword ptr [rbx+0x10], rcx
+       mov      ecx, dword ptr [r15+0x10]
+       mov      dword ptr [rbx+0x20], ecx
+						;; size=14 bbWeight=0.50 PerfScore 3.00
+G_M49655_IG18:
+       vmovdqu  xmm0, xmmword ptr [r15+0x18]
+       vmovdqu  xmmword ptr [rbx+0x70], xmm0
+						;; size=11 bbWeight=0.50 PerfScore 3.00
+G_M49655_IG19:
+       xor      rcx, rcx
+       xor      r8d, r8d
+       mov      rdi, rbx
+       mov      esi, 5
+       xor      edx, edx
+       mov      rax, 0xD1FFAB1E      ; code for System.Text.Json.ThrowHelper:ThrowJsonReaderException(byref,int,ubyte,System.ReadOnlySpan`1[ubyte])
+       call     [rax]System.Text.Json.ThrowHelper:ThrowJsonReaderException(byref,int,ubyte,System.ReadOnlySpan`1[ubyte])
+       int3     
+						;; size=28 bbWeight=0.50 PerfScore 2.38
+G_M49655_IG20:
        call     CORINFO_HELP_RNGCHKFAIL
        int3     
 						;; size=6 bbWeight=0 PerfScore 0.00
 
-; Total bytes of code 392, prolog size 25, PerfScore 67.00, instruction count 117, allocated bytes for code 392 (MethodHash=27983e08) for method System.Text.Json.Utf8JsonReader:ConsumeDecimalDigitsMultiSegment(byref,byref,byref):ubyte:this (FullOpts)
+; Total bytes of code 380, prolog size 25, PerfScore 71.50, instruction count 111, allocated bytes for code 380 (MethodHash=27983e08) for method System.Text.Json.Utf8JsonReader:ConsumeDecimalDigitsMultiSegment(byref,byref,byref):ubyte:this (FullOpts)
 ; ============================================================

-5 (-3.21 % of base) - System.Numerics.Tensors.ReadOnlyTensorSpan`1[double]:.ctor(byref,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long],long):this

 ; Assembly listing for method System.Numerics.Tensors.ReadOnlyTensorSpan`1[double]:.ctor(byref,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long],long):this (FullOpts)
 ; Emitting BLENDED_CODE for X64 with AVX512 - Unix
 ; FullOpts code
 ; optimized code
 ; rbp based frame
 ; fully interruptible
 ; No PGO data
 ; 0 inlinees with PGO data; 1 single block inlinees; 1 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 this         [V00,T05] (  4,  4   )   byref  ->  rbx         this single-def
 ;  V01 arg1         [V01,T06] (  3,  3   )   byref  ->  r15         single-def
 ;* V02 arg2         [V02    ] (  0,  0   )  struct (16) zero-ref    multireg-arg single-def <System.ReadOnlySpan`1[long]>
 ;* V03 arg3         [V03    ] (  0,  0   )  struct (16) zero-ref    multireg-arg single-def <System.ReadOnlySpan`1[long]>
 ;  V04 arg4         [V04,T11] (  1,  1   )    long  ->  [rbp+0x10]  single-def
 ;# V05 OutArgs      [V05    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace"
 ;  V06 tmp1         [V06    ] (  2,  4   )  struct (104) [rbp-0x78]  do-not-enreg[XS] must-init addr-exposed ld-addr-op "NewObj constructor temp" <System.Numerics.Tensors.TensorShape>
 ;* V07 tmp2         [V07    ] (  0,  0   )    long  ->  zero-ref    "Inline return value spill temp"
 ;* V08 tmp3         [V08    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "Inlining Arg" <System.ReadOnlySpan`1[long]>
 ;  V09 tmp4         [V09,T04] (  4,  8.75)    long  ->  rdi         "Inline stloc first use temp"
 ;* V10 tmp5         [V10,T12] (  0,  0   )     int  ->  zero-ref    "Inline stloc first use temp"
 ;  V11 tmp6         [V11,T02] (  3,  6   )   byref  ->  rdx         single-def "field V02._reference (fldOffset=0x0)" P-INDEP
 ;  V12 tmp7         [V12,T03] (  4,  7   )     int  ->  rcx         single-def "field V02._length (fldOffset=0x8)" P-INDEP
 ;  V13 tmp8         [V13,T07] (  2,  2   )   byref  ->   r8         single-def "field V03._reference (fldOffset=0x0)" P-INDEP
 ;  V14 tmp9         [V14,T08] (  2,  2   )     int  ->   r9         single-def "field V03._length (fldOffset=0x8)" P-INDEP
 ;* V15 tmp10        [V15,T10] (  0,  0   )   byref  ->  zero-ref    single-def "field V08._reference (fldOffset=0x0)" P-INDEP
 ;  V16 tmp11        [V16,T09] (  2,  2   )     int  ->  rdi         "field V08._length (fldOffset=0x8)" P-INDEP
 ;  V17 cse0         [V17,T01] (  3, 12   )    long  ->  rax         "CSE #03: aggressive"
 ;  V18 rat0         [V18,T00] (  5, 16.25)    long  ->  rsi         "Widened IV V10"
 ;
 ; Lcl frame size = 112
 
 G_M38717_IG01:
        push     rbp
        push     r15
        push     rbx
        sub      rsp, 112
        lea      rbp, [rsp+0x80]
        xor      eax, eax
        mov      qword ptr [rbp-0x78], rax
        vxorps   xmm8, xmm8, xmm8
        vmovdqu32 zmmword ptr [rbp-0x70], zmm8
        vmovdqa  xmmword ptr [rbp-0x30], xmm8
        vmovdqa  xmmword ptr [rbp-0x20], xmm8
        mov      rbx, rdi
        mov      r15, rsi
 						;; size=53 bbWeight=1 PerfScore 11.83
 G_M38717_IG02:
        mov      edi, ecx
        test     edi, edi
        je       SHORT G_M38717_IG06
 						;; size=6 bbWeight=1 PerfScore 1.50
 G_M38717_IG03:
        mov      edi, 1
        xor      esi, esi
        align    [0 bytes for IG04]
 						;; size=7 bbWeight=0.25 PerfScore 0.12
 G_M38717_IG04:
        mov      rax, qword ptr [rdx+8*rsi]
        test     rax, rax
        jl       SHORT G_M38717_IG08
        imul     rdi, rax
        inc      esi
        cmp      esi, ecx
        jl       SHORT G_M38717_IG04
 						;; size=19 bbWeight=4 PerfScore 27.00
 G_M38717_IG05:
        test     rdi, rdi
        jl       SHORT G_M38717_IG08
 						;; size=5 bbWeight=0.50 PerfScore 0.62
 G_M38717_IG06:
        lea      rdi, [rbp-0x78]
        mov      rsi, qword ptr [rbp+0x10]
        mov      rax, 0xD1FFAB1E      ; code for System.Numerics.Tensors.TensorShape:.ctor(long,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this
        call     [rax]System.Numerics.Tensors.TensorShape:.ctor(long,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this
        lea      rdi, bword ptr [rbx+0x08]
        lea      rsi, bword ptr [rbp-0x78]
-       call     CORINFO_HELP_ASSIGN_BYREF
-       mov      ecx, 12
+       mov      ecx, 13
        rep movsq 
        mov      bword ptr [rbx], r15
-						;; size=44 bbWeight=1 PerfScore 33.00
+						;; size=39 bbWeight=1 PerfScore 32.00
 G_M38717_IG07:
        add      rsp, 112
        pop      rbx
        pop      r15
        pop      rbp
        ret      
 						;; size=9 bbWeight=1 PerfScore 2.75
 G_M38717_IG08:
        mov      rax, 0xD1FFAB1E      ; code for System.ThrowHelper:ThrowArgumentOutOfRangeException()
        call     [rax]System.ThrowHelper:ThrowArgumentOutOfRangeException()
        int3     
 						;; size=13 bbWeight=0.50 PerfScore 1.75
 
-; Total bytes of code 156, prolog size 53, PerfScore 78.58, instruction count 46, allocated bytes for code 156 (MethodHash=04f268c2) for method System.Numerics.Tensors.ReadOnlyTensorSpan`1[double]:.ctor(byref,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long],long):this (FullOpts)
+; Total bytes of code 151, prolog size 53, PerfScore 77.58, instruction count 45, allocated bytes for code 151 (MethodHash=04f268c2) for method System.Numerics.Tensors.ReadOnlyTensorSpan`1[double]:.ctor(byref,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long],long):this (FullOpts)
 ; ============================================================

-5 (-0.98 % of base) - System.Numerics.Tensors.ReadOnlyTensorSpan`1[double]:.ctor(double[],int,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this

 ; Assembly listing for method System.Numerics.Tensors.ReadOnlyTensorSpan`1[double]:.ctor(double[],int,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
 ; Emitting BLENDED_CODE for X64 with AVX512 - Unix
 ; FullOpts code
 ; optimized code
 ; rbp based frame
 ; fully interruptible
 ; No PGO data
 ; 0 inlinees with PGO data; 6 single block inlinees; 3 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 this         [V00,T12] (  5,  3.50)   byref  ->  [rbp-0xA8]  this single-def
 ;  V01 arg1         [V01,T08] (  7,  5   )     ref  ->  r14         class-hnd single-def <double[]>
 ;  V02 arg2         [V02,T11] (  6,  4   )     int  ->  [rbp-0x2C]  single-def
 ;* V03 arg3         [V03    ] (  0,  0   )  struct (16) zero-ref    multireg-arg ld-addr-op single-def <System.ReadOnlySpan`1[long]>
 ;* V04 arg4         [V04    ] (  0,  0   )  struct (16) zero-ref    multireg-arg ld-addr-op single-def <System.ReadOnlySpan`1[long]>
 ;* V05 loc0         [V05    ] (  0,  0   )    long  ->  zero-ref    single-def
 ;* V06 loc1         [V06    ] (  0,  0   )    long  ->  zero-ref    single-def
 ;  V07 loc2         [V07    ] (  2,  1   )    long  ->  [rbp-0x38]  do-not-enreg[X] must-init addr-exposed ld-addr-op
 ;# V08 OutArgs      [V08    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace"
 ;* V09 tmp1         [V09    ] (  0,  0   )  struct (16) zero-ref    multireg-arg <System.ReadOnlySpan`1[long]>
 ;  V10 tmp2         [V10    ] (  2,  2   )  struct (104) [rbp-0xA0]  do-not-enreg[XS] must-init addr-exposed ld-addr-op "NewObj constructor temp" <System.Numerics.Tensors.TensorShape>
 ;* V11 tmp3         [V11    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "NewObj constructor temp" <System.ReadOnlySpan`1[long]>
 ;  V12 tmp4         [V12,T15] (  4,  2   )    long  ->  rdx         "Inline return value spill temp"
 ;* V13 tmp5         [V13    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "Inlining Arg" <System.ReadOnlySpan`1[long]>
 ;  V14 tmp6         [V14,T06] (  5,  9.25)    long  ->  rdi         "Inline stloc first use temp"
 ;* V15 tmp7         [V15,T28] (  0,  0   )     int  ->  zero-ref    "Inline stloc first use temp"
 ;  V16 tmp8         [V16,T13] (  4,  4   )     ref  ->  rax         class-hnd single-def "Inlining Arg" <long[]>
 ;* V17 tmp9         [V17    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "NewObj constructor temp" <System.ReadOnlySpan`1[long]>
 ;  V18 tmp10        [V18,T07] (  4,  9   )    long  ->  rsi         "Inline stloc first use temp"
 ;  V19 tmp11        [V19,T00] (  6, 20.50)     int  ->  rdx         "Inline stloc first use temp"
 ;* V20 tmp12        [V20    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "Inlining Arg" <System.ReadOnlySpan`1[long]>
 ;* V21 tmp13        [V21    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "Inlining Arg" <System.ReadOnlySpan`1[long]>
 ;  V22 tmp14        [V22,T03] (  7, 11   )   byref  ->  r15         "field V03._reference (fldOffset=0x0)" P-INDEP
 ;  V23 tmp15        [V23,T02] ( 10, 13.50)     int  ->  rbx         "field V03._length (fldOffset=0x8)" P-INDEP
 ;  V24 tmp16        [V24,T10] (  5,  6   )   byref  ->  r12         "field V04._reference (fldOffset=0x0)" P-INDEP
 ;  V25 tmp17        [V25,T09] (  6,  6.50)     int  ->  r13         "field V04._length (fldOffset=0x8)" P-INDEP
 ;  V26 tmp18        [V26,T17] (  3,  1.50)   byref  ->  rdi         "field V09._reference (fldOffset=0x0)" P-INDEP
 ;  V27 tmp19        [V27,T19] (  3,  1.50)     int  ->  rsi         "field V09._length (fldOffset=0x8)" P-INDEP
 ;* V28 tmp20        [V28,T22] (  0,  0   )   byref  ->  zero-ref    single-def "field V11._reference (fldOffset=0x0)" P-INDEP
 ;* V29 tmp21        [V29,T25] (  0,  0   )     int  ->  zero-ref    single-def "field V11._length (fldOffset=0x8)" P-INDEP
 ;* V30 tmp22        [V30,T21] (  0,  0   )   byref  ->  zero-ref    single-def "field V13._reference (fldOffset=0x0)" P-INDEP
 ;  V31 tmp23        [V31,T16] (  2,  2   )     int  ->  rdi         single-def "field V13._length (fldOffset=0x8)" P-INDEP
 ;  V32 tmp24        [V32,T18] (  3,  1.50)   byref  ->  rdi         "field V17._reference (fldOffset=0x0)" P-INDEP
 ;  V33 tmp25        [V33,T20] (  3,  1.50)     int  ->  rsi         "field V17._length (fldOffset=0x8)" P-INDEP
 ;* V34 tmp26        [V34,T23] (  0,  0   )   byref  ->  zero-ref    single-def "field V20._reference (fldOffset=0x0)" P-INDEP
 ;* V35 tmp27        [V35,T26] (  0,  0   )     int  ->  zero-ref    single-def "field V20._length (fldOffset=0x8)" P-INDEP
 ;* V36 tmp28        [V36,T24] (  0,  0   )   byref  ->  zero-ref    single-def "field V21._reference (fldOffset=0x0)" P-INDEP
 ;* V37 tmp29        [V37,T27] (  0,  0   )     int  ->  zero-ref    single-def "field V21._length (fldOffset=0x8)" P-INDEP
 ;  V38 cse0         [V38,T04] (  3, 12   )    long  ->  rdx         "CSE #03: aggressive"
 ;  V39 cse1         [V39,T14] (  6,  3   )     int  ->   r8         multi-def "CSE #05: moderate"
 ;  V40 cse2         [V40,T05] (  3, 12   )    long  ->  rcx         "CSE #04: aggressive"
 ;  V41 rat0         [V41,T01] (  5, 16.25)    long  ->  rsi         "Widened IV V15"
 ;
 ; Lcl frame size = 136
 
 G_M63805_IG01:
        push     rbp
        push     r15
        push     r14
        push     r13
        push     r12
        push     rbx
        sub      rsp, 136
        lea      rbp, [rsp+0xB0]
        vxorps   xmm8, xmm8, xmm8
        vmovdqu32 zmmword ptr [rbp-0xA0], zmm8
        vmovdqa  xmmword ptr [rbp-0x60], xmm8
        vmovdqa  xmmword ptr [rbp-0x50], xmm8
        vmovdqa  xmmword ptr [rbp-0x40], xmm8
        mov      bword ptr [rbp-0xA8], rdi
        mov      dword ptr [rbp-0x2C], edx
        mov      r14, rsi
        mov      r15, rcx
        mov      ebx, r8d
        mov      r12, bword ptr [rbp+0x10]
        mov      r13d, dword ptr [rbp+0x18]
 						;; size=82 bbWeight=1 PerfScore 19.83
 G_M63805_IG02:
        test     ebx, ebx
        jne      SHORT G_M63805_IG04
 						;; size=4 bbWeight=1 PerfScore 1.25
 G_M63805_IG03:
        test     r14, r14
        je       SHORT G_M63805_IG04
        mov      r8d, dword ptr [r14+0x08]
        mov      edi, r8d
        mov      qword ptr [rbp-0x38], rdi
        lea      r15, bword ptr [rbp-0x38]
        mov      ebx, 1
 						;; size=25 bbWeight=0.50 PerfScore 2.62
 G_M63805_IG04:
        mov      edi, ebx
        test     edi, edi
        je       SHORT G_M63805_IG08
 						;; size=6 bbWeight=1 PerfScore 1.50
 G_M63805_IG05:
        mov      edi, 1
        xor      esi, esi
        align    [4 bytes for IG06]
 						;; size=11 bbWeight=0.25 PerfScore 0.19
 G_M63805_IG06:
        mov      rdx, qword ptr [r15+8*rsi]
        test     rdx, rdx
        jl       G_M63805_IG21
        imul     rdi, rdx
        inc      esi
        cmp      esi, ebx
        jl       SHORT G_M63805_IG06
 						;; size=23 bbWeight=4 PerfScore 27.00
 G_M63805_IG07:
        test     rdi, rdi
        jl       G_M63805_IG21
        mov      rdx, rdi
        jmp      SHORT G_M63805_IG09
        align    [0 bytes for IG15]
 						;; size=14 bbWeight=0.50 PerfScore 1.75
 G_M63805_IG08:
        xor      edx, edx
 						;; size=2 bbWeight=0.50 PerfScore 0.12
 G_M63805_IG09:
        test     r14, r14
        je       G_M63805_IG19
 						;; size=9 bbWeight=1 PerfScore 1.25
 G_M63805_IG10:
        test     r13d, r13d
        jne      SHORT G_M63805_IG13
        mov      rdi, r15
        mov      esi, ebx
        mov      r8, 0xD1FFAB1E      ; code for System.Numerics.Tensors.TensorSpanHelpers:CalculateStrides(System.ReadOnlySpan`1[long],long):long[]
        call     [r8]System.Numerics.Tensors.TensorSpanHelpers:CalculateStrides(System.ReadOnlySpan`1[long],long):long[]
        test     rax, rax
        je       SHORT G_M63805_IG11
        lea      rdi, bword ptr [rax+0x10]
        mov      esi, dword ptr [rax+0x08]
        jmp      SHORT G_M63805_IG12
 						;; size=37 bbWeight=0.50 PerfScore 5.38
 G_M63805_IG11:
        xor      rdi, rdi
        xor      esi, esi
 						;; size=4 bbWeight=0.50 PerfScore 0.25
 G_M63805_IG12:
        jmp      SHORT G_M63805_IG14
 						;; size=2 bbWeight=0.50 PerfScore 1.00
 G_M63805_IG13:
        mov      rdi, r12
        mov      esi, r13d
 						;; size=6 bbWeight=0.50 PerfScore 0.25
 G_M63805_IG14:
        mov      r12, rdi
        mov      r13d, esi
        mov      rdi, r12
        mov      esi, r13d
        mov      rdx, r15
        mov      ecx, ebx
        mov      r8, 0xD1FFAB1E      ; code for System.Numerics.Tensors.TensorSpanHelpers:ValidateStrides(System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long])
        call     [r8]System.Numerics.Tensors.TensorSpanHelpers:ValidateStrides(System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long])
        xor      esi, esi
        xor      edx, edx
        test     ebx, ebx
        jle      SHORT G_M63805_IG16
 						;; size=38 bbWeight=0.50 PerfScore 3.25
 G_M63805_IG15:
        cmp      edx, r13d
        jae      G_M63805_IG22
        mov      ecx, edx
        mov      r8, qword ptr [r12+8*rcx]
        mov      rcx, qword ptr [r15+8*rcx]
        dec      rcx
        imul     rcx, r8
        add      rsi, rcx
        inc      edx
        cmp      edx, ebx
        jl       SHORT G_M63805_IG15
 						;; size=35 bbWeight=4 PerfScore 38.00
 G_M63805_IG16:
        mov      eax, dword ptr [rbp-0x2C]
        mov      edx, eax
        mov      esi, esi
        add      rsi, rdx
        mov      r8d, dword ptr [r14+0x08]
        mov      edx, r8d
        cmp      rsi, rdx
        jb       SHORT G_M63805_IG17
        test     r8d, r8d
        jne      SHORT G_M63805_IG18
 						;; size=27 bbWeight=0.50 PerfScore 3.25
 G_M63805_IG17:
        mov      dword ptr [rbp-0x2C], eax
        sub      r8d, eax
        movsxd   rsi, r8d
        mov      rdx, r15
        mov      ecx, ebx
        mov      r8, r12
        mov      r9d, r13d
        lea      rdi, [rbp-0xA0]
        mov      r10, 0xD1FFAB1E      ; code for System.Numerics.Tensors.TensorShape:.ctor(long,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this
        call     [r10]System.Numerics.Tensors.TensorShape:.ctor(long,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this
        mov      rbx, bword ptr [rbp-0xA8]
        lea      rdi, bword ptr [rbx+0x08]
        lea      rsi, bword ptr [rbp-0xA0]
-       call     CORINFO_HELP_ASSIGN_BYREF
-       mov      ecx, 12
+       mov      ecx, 13
        rep movsq 
        add      r14, 16
        mov      eax, dword ptr [rbp-0x2C]
        shl      rax, 3
        add      rax, r14
        mov      bword ptr [rbx], rax
        jmp      SHORT G_M63805_IG20
-						;; size=90 bbWeight=0.50 PerfScore 19.75
+						;; size=85 bbWeight=0.50 PerfScore 19.25
 G_M63805_IG18:
        mov      rax, 0xD1FFAB1E      ; code for System.ThrowHelper:ThrowArgument_InvalidStridesAndLengths()
        call     [rax]System.ThrowHelper:ThrowArgument_InvalidStridesAndLengths()
        int3     
 						;; size=13 bbWeight=0.50 PerfScore 1.75
 G_M63805_IG19:
        cmp      dword ptr [rbp-0x2C], 0
        jne      SHORT G_M63805_IG21
        test     rdx, rdx
        jne      SHORT G_M63805_IG21
        xor      eax, eax
        mov      rcx, bword ptr [rbp-0xA8]
        mov      qword ptr [rcx], rax
        mov      qword ptr [rcx+0x08], rax
        vxorps   xmm0, xmm0, xmm0
        vmovdqu32 zmmword ptr [rcx+0x10], zmm0
        vmovdqu  ymmword ptr [rcx+0x50], ymm0
 						;; size=46 bbWeight=0.50 PerfScore 5.92
 G_M63805_IG20:
        add      rsp, 136
        pop      rbx
        pop      r12
        pop      r13
        pop      r14
        pop      r15
        pop      rbp
        ret      
 						;; size=18 bbWeight=1 PerfScore 4.25
 G_M63805_IG21:
        mov      rax, 0xD1FFAB1E      ; code for System.ThrowHelper:ThrowArgumentOutOfRangeException()
        call     [rax]System.ThrowHelper:ThrowArgumentOutOfRangeException()
        int3     
 						;; size=13 bbWeight=0.50 PerfScore 1.75
 G_M63805_IG22:
        call     CORINFO_HELP_RNGCHKFAIL
        int3     
 						;; size=6 bbWeight=0 PerfScore 0.00
 
-; Total bytes of code 511, prolog size 82, PerfScore 140.31, instruction count 148, allocated bytes for code 511 (MethodHash=1a3806c2) for method System.Numerics.Tensors.ReadOnlyTensorSpan`1[double]:.ctor(double[],int,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
+; Total bytes of code 506, prolog size 82, PerfScore 139.81, instruction count 147, allocated bytes for code 506 (MethodHash=1a3806c2) for method System.Numerics.Tensors.ReadOnlyTensorSpan`1[double]:.ctor(double[],int,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this (FullOpts)
 ; ============================================================

-5 (-3.21 % of base) - System.Numerics.Tensors.ReadOnlyTensorSpan`1[int]:.ctor(byref,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long],long):this

 ; Assembly listing for method System.Numerics.Tensors.ReadOnlyTensorSpan`1[int]:.ctor(byref,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long],long):this (FullOpts)
 ; Emitting BLENDED_CODE for X64 with AVX512 - Unix
 ; FullOpts code
 ; optimized code
 ; rbp based frame
 ; fully interruptible
 ; No PGO data
 ; 0 inlinees with PGO data; 1 single block inlinees; 1 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 this         [V00,T05] (  4,  4   )   byref  ->  rbx         this single-def
 ;  V01 arg1         [V01,T06] (  3,  3   )   byref  ->  r15         single-def
 ;* V02 arg2         [V02    ] (  0,  0   )  struct (16) zero-ref    multireg-arg single-def <System.ReadOnlySpan`1[long]>
 ;* V03 arg3         [V03    ] (  0,  0   )  struct (16) zero-ref    multireg-arg single-def <System.ReadOnlySpan`1[long]>
 ;  V04 arg4         [V04,T11] (  1,  1   )    long  ->  [rbp+0x10]  single-def
 ;# V05 OutArgs      [V05    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace"
 ;  V06 tmp1         [V06    ] (  2,  4   )  struct (104) [rbp-0x78]  do-not-enreg[XS] must-init addr-exposed ld-addr-op "NewObj constructor temp" <System.Numerics.Tensors.TensorShape>
 ;* V07 tmp2         [V07    ] (  0,  0   )    long  ->  zero-ref    "Inline return value spill temp"
 ;* V08 tmp3         [V08    ] (  0,  0   )  struct (16) zero-ref    ld-addr-op "Inlining Arg" <System.ReadOnlySpan`1[long]>
 ;  V09 tmp4         [V09,T04] (  4,  8.75)    long  ->  rdi         "Inline stloc first use temp"
 ;* V10 tmp5         [V10,T12] (  0,  0   )     int  ->  zero-ref    "Inline stloc first use temp"
 ;  V11 tmp6         [V11,T02] (  3,  6   )   byref  ->  rdx         single-def "field V02._reference (fldOffset=0x0)" P-INDEP
 ;  V12 tmp7         [V12,T03] (  4,  7   )     int  ->  rcx         single-def "field V02._length (fldOffset=0x8)" P-INDEP
 ;  V13 tmp8         [V13,T07] (  2,  2   )   byref  ->   r8         single-def "field V03._reference (fldOffset=0x0)" P-INDEP
 ;  V14 tmp9         [V14,T08] (  2,  2   )     int  ->   r9         single-def "field V03._length (fldOffset=0x8)" P-INDEP
 ;* V15 tmp10        [V15,T10] (  0,  0   )   byref  ->  zero-ref    single-def "field V08._reference (fldOffset=0x0)" P-INDEP
 ;  V16 tmp11        [V16,T09] (  2,  2   )     int  ->  rdi         "field V08._length (fldOffset=0x8)" P-INDEP
 ;  V17 cse0         [V17,T01] (  3, 12   )    long  ->  rax         "CSE #03: aggressive"
 ;  V18 rat0         [V18,T00] (  5, 16.25)    long  ->  rsi         "Widened IV V10"
 ;
 ; Lcl frame size = 112
 
 G_M12315_IG01:
        push     rbp
        push     r15
        push     rbx
        sub      rsp, 112
        lea      rbp, [rsp+0x80]
        xor      eax, eax
        mov      qword ptr [rbp-0x78], rax
        vxorps   xmm8, xmm8, xmm8
        vmovdqu32 zmmword ptr [rbp-0x70], zmm8
        vmovdqa  xmmword ptr [rbp-0x30], xmm8
        vmovdqa  xmmword ptr [rbp-0x20], xmm8
        mov      rbx, rdi
        mov      r15, rsi
 						;; size=53 bbWeight=1 PerfScore 11.83
 G_M12315_IG02:
        mov      edi, ecx
        test     edi, edi
        je       SHORT G_M12315_IG06
 						;; size=6 bbWeight=1 PerfScore 1.50
 G_M12315_IG03:
        mov      edi, 1
        xor      esi, esi
        align    [0 bytes for IG04]
 						;; size=7 bbWeight=0.25 PerfScore 0.12
 G_M12315_IG04:
        mov      rax, qword ptr [rdx+8*rsi]
        test     rax, rax
        jl       SHORT G_M12315_IG08
        imul     rdi, rax
        inc      esi
        cmp      esi, ecx
        jl       SHORT G_M12315_IG04
 						;; size=19 bbWeight=4 PerfScore 27.00
 G_M12315_IG05:
        test     rdi, rdi
        jl       SHORT G_M12315_IG08
 						;; size=5 bbWeight=0.50 PerfScore 0.62
 G_M12315_IG06:
        lea      rdi, [rbp-0x78]
        mov      rsi, qword ptr [rbp+0x10]
        mov      rax, 0xD1FFAB1E      ; code for System.Numerics.Tensors.TensorShape:.ctor(long,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this
        call     [rax]System.Numerics.Tensors.TensorShape:.ctor(long,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long]):this
        lea      rdi, bword ptr [rbx+0x08]
        lea      rsi, bword ptr [rbp-0x78]
-       call     CORINFO_HELP_ASSIGN_BYREF
-       mov      ecx, 12
+       mov      ecx, 13
        rep movsq 
        mov      bword ptr [rbx], r15
-						;; size=44 bbWeight=1 PerfScore 33.00
+						;; size=39 bbWeight=1 PerfScore 32.00
 G_M12315_IG07:
        add      rsp, 112
        pop      rbx
        pop      r15
        pop      rbp
        ret      
 						;; size=9 bbWeight=1 PerfScore 2.75
 G_M12315_IG08:
        mov      rax, 0xD1FFAB1E      ; code for System.ThrowHelper:ThrowArgumentOutOfRangeException()
        call     [rax]System.ThrowHelper:ThrowArgumentOutOfRangeException()
        int3     
 						;; size=13 bbWeight=0.50 PerfScore 1.75
 
-; Total bytes of code 156, prolog size 53, PerfScore 78.58, instruction count 46, allocated bytes for code 156 (MethodHash=8acacfe4) for method System.Numerics.Tensors.ReadOnlyTensorSpan`1[int]:.ctor(byref,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long],long):this (FullOpts)
+; Total bytes of code 151, prolog size 53, PerfScore 77.58, instruction count 45, allocated bytes for code 151 (MethodHash=8acacfe4) for method System.Numerics.Tensors.ReadOnlyTensorSpan`1[int]:.ctor(byref,System.ReadOnlySpan`1[long],System.ReadOnlySpan`1[long],long):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/990cb06bf75b6fe36e462abc23f5b928

[MihuBot]

@EgorBo