[JitDiff X64] [EgorBo] Mark some structs as byreflike

[MihuBot]

Job completed in 14 minutes.
dotnet/runtime#104870

Diffs

Found 263 files with textual diffs.

Summary of Code Size diffs:
(Lower is better)

Total bytes of base: 39113879
Total bytes of diff: 39113648
Total bytes of delta: -231 (-0.00 % of base)
Total relative delta: -3.87
    diff is an improvement.
    relative diff is an improvement.


Top file improvements (bytes):
        -216 : System.Private.CoreLib.dasm (-0.00 % of base)
         -15 : System.Text.RegularExpressions.dasm (-0.00 % of base)

2 total files with Code Size differences (2 improved, 0 regressed), 257 unchanged.

Top method improvements (bytes):
         -41 (-77.36 % of base) : System.Private.CoreLib.dasm - System.Array+SorterGenericArray:.ctor(System.Array,System.Array,System.Collections.IComparer):this (FullOpts)
         -41 (-77.36 % of base) : System.Private.CoreLib.dasm - System.Array+SorterObjectArray:.ctor(System.Object[],System.Object[],System.Collections.IComparer):this (FullOpts)
         -10 (-35.71 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.PropertyValue:.ctor(System.Object):this (FullOpts)
          -8 (-5.52 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_2[System.__Canon]:<GetPropertyGetter>b__2(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
          -8 (-5.52 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_3[System.__Canon]:<GetPropertyGetter>b__3(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
          -8 (-5.52 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_4[System.__Canon]:<GetPropertyGetter>b__4(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
          -8 (-5.48 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_5[System.__Canon]:<GetPropertyGetter>b__5(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
          -8 (-5.48 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_6[System.__Canon]:<GetPropertyGetter>b__6(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
          -8 (-5.48 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_7[System.__Canon]:<GetPropertyGetter>b__7(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
          -8 (-5.52 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_8[System.__Canon]:<GetPropertyGetter>b__8(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
          -8 (-5.52 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_9[System.__Canon]:<GetPropertyGetter>b__9(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
          -6 (-4.58 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.PropertyValue+<>c:<GetFactory>b__25_0(System.Object):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
          -6 (-4.58 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.PropertyValue+<>c:<GetFactory>b__25_1(System.Object):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
          -6 (-4.48 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.PropertyValue+<>c:<GetFactory>b__25_12(System.Object):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
          -6 (-4.58 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.PropertyValue+<>c:<GetFactory>b__25_2(System.Object):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
          -6 (-4.55 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.PropertyValue+<>c:<GetFactory>b__25_3(System.Object):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
          -6 (-4.55 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.PropertyValue+<>c:<GetFactory>b__25_4(System.Object):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
          -6 (-4.55 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.PropertyValue+<>c:<GetFactory>b__25_5(System.Object):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
          -6 (-4.62 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.PropertyValue+<>c:<GetFactory>b__25_6(System.Object):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
          -6 (-4.62 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.PropertyValue+<>c:<GetFactory>b__25_7(System.Object):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
          -6 (-4.14 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_14[System.__Canon]:<GetPropertyGetter>b__14(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
          -3 (-21.43 % of base) : System.Text.RegularExpressions.dasm - System.Text.RegularExpressions.Symbolic.SymbolicRegexMatcher`1+CurrentState[double]:.ctor(System.Text.RegularExpressions.Symbolic.SymbolicRegexMatcher`1+NfaMatchingState[double]):this (FullOpts)
          -3 (-21.43 % of base) : System.Text.RegularExpressions.dasm - System.Text.RegularExpressions.Symbolic.SymbolicRegexMatcher`1+CurrentState[int]:.ctor(System.Text.RegularExpressions.Symbolic.SymbolicRegexMatcher`1+NfaMatchingState[int]):this (FullOpts)
          -3 (-21.43 % of base) : System.Text.RegularExpressions.dasm - System.Text.RegularExpressions.Symbolic.SymbolicRegexMatcher`1+CurrentState[long]:.ctor(System.Text.RegularExpressions.Symbolic.SymbolicRegexMatcher`1+NfaMatchingState[long]):this (FullOpts)
          -3 (-21.43 % of base) : System.Text.RegularExpressions.dasm - System.Text.RegularExpressions.Symbolic.SymbolicRegexMatcher`1+CurrentState[short]:.ctor(System.Text.RegularExpressions.Symbolic.SymbolicRegexMatcher`1+NfaMatchingState[short]):this (FullOpts)
          -3 (-21.43 % of base) : System.Text.RegularExpressions.dasm - System.Text.RegularExpressions.Symbolic.SymbolicRegexMatcher`1+CurrentState[ubyte]:.ctor(System.Text.RegularExpressions.Symbolic.SymbolicRegexMatcher`1+NfaMatchingState[ubyte]):this (FullOpts)

Top method improvements (percentages):
         -41 (-77.36 % of base) : System.Private.CoreLib.dasm - System.Array+SorterGenericArray:.ctor(System.Array,System.Array,System.Collections.IComparer):this (FullOpts)
         -41 (-77.36 % of base) : System.Private.CoreLib.dasm - System.Array+SorterObjectArray:.ctor(System.Object[],System.Object[],System.Collections.IComparer):this (FullOpts)
         -10 (-35.71 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.PropertyValue:.ctor(System.Object):this (FullOpts)
          -3 (-21.43 % of base) : System.Text.RegularExpressions.dasm - System.Text.RegularExpressions.Symbolic.SymbolicRegexMatcher`1+CurrentState[double]:.ctor(System.Text.RegularExpressions.Symbolic.SymbolicRegexMatcher`1+NfaMatchingState[double]):this (FullOpts)
          -3 (-21.43 % of base) : System.Text.RegularExpressions.dasm - System.Text.RegularExpressions.Symbolic.SymbolicRegexMatcher`1+CurrentState[int]:.ctor(System.Text.RegularExpressions.Symbolic.SymbolicRegexMatcher`1+NfaMatchingState[int]):this (FullOpts)
          -3 (-21.43 % of base) : System.Text.RegularExpressions.dasm - System.Text.RegularExpressions.Symbolic.SymbolicRegexMatcher`1+CurrentState[long]:.ctor(System.Text.RegularExpressions.Symbolic.SymbolicRegexMatcher`1+NfaMatchingState[long]):this (FullOpts)
          -3 (-21.43 % of base) : System.Text.RegularExpressions.dasm - System.Text.RegularExpressions.Symbolic.SymbolicRegexMatcher`1+CurrentState[short]:.ctor(System.Text.RegularExpressions.Symbolic.SymbolicRegexMatcher`1+NfaMatchingState[short]):this (FullOpts)
          -3 (-21.43 % of base) : System.Text.RegularExpressions.dasm - System.Text.RegularExpressions.Symbolic.SymbolicRegexMatcher`1+CurrentState[ubyte]:.ctor(System.Text.RegularExpressions.Symbolic.SymbolicRegexMatcher`1+NfaMatchingState[ubyte]):this (FullOpts)
          -8 (-5.52 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_2[System.__Canon]:<GetPropertyGetter>b__2(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
          -8 (-5.52 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_3[System.__Canon]:<GetPropertyGetter>b__3(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
          -8 (-5.52 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_4[System.__Canon]:<GetPropertyGetter>b__4(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
          -8 (-5.52 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_8[System.__Canon]:<GetPropertyGetter>b__8(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
          -8 (-5.52 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_9[System.__Canon]:<GetPropertyGetter>b__9(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
          -8 (-5.48 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_5[System.__Canon]:<GetPropertyGetter>b__5(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
          -8 (-5.48 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_6[System.__Canon]:<GetPropertyGetter>b__6(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
          -8 (-5.48 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_7[System.__Canon]:<GetPropertyGetter>b__7(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
          -6 (-4.62 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.PropertyValue+<>c:<GetFactory>b__25_6(System.Object):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
          -6 (-4.62 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.PropertyValue+<>c:<GetFactory>b__25_7(System.Object):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
          -6 (-4.58 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.PropertyValue+<>c:<GetFactory>b__25_0(System.Object):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
          -6 (-4.58 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.PropertyValue+<>c:<GetFactory>b__25_1(System.Object):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
          -6 (-4.58 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.PropertyValue+<>c:<GetFactory>b__25_2(System.Object):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
          -6 (-4.55 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.PropertyValue+<>c:<GetFactory>b__25_3(System.Object):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
          -6 (-4.55 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.PropertyValue+<>c:<GetFactory>b__25_4(System.Object):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
          -6 (-4.55 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.PropertyValue+<>c:<GetFactory>b__25_5(System.Object):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
          -6 (-4.48 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.PropertyValue+<>c:<GetFactory>b__25_12(System.Object):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
          -6 (-4.14 % of base) : System.Private.CoreLib.dasm - System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_14[System.__Canon]:<GetPropertyGetter>b__14(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)

26 total methods with Code Size differences (26 improved, 0 regressed), 230452 unchanged.

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

Artifacts:

• build-artifacts-main.zip (652 MB)
• build-clr-checked-main.zip (87 MB)
• build-artifacts-pr.zip (653 MB)
• build-clr-checked-pr.zip (87 MB)
• diff-frameworks.txt (12 KB)
• jit-diffs-frameworks.zip (259 MB)

[MihuBot]

Top method improvements

-41 (-77.36 % of base) - System.Array+SorterGenericArray:.ctor(System.Array,System.Array,System.Collections.IComparer):this

 ; Assembly listing for method System.Array+SorterGenericArray:.ctor(System.Array,System.Array,System.Collections.IComparer):this (FullOpts)
 ; Emitting BLENDED_CODE for X64 with AVX512 - Unix
 ; FullOpts code
 ; optimized code
 ; rsp based frame
 ; partially interruptible
 ; No PGO data
 ; Final local variable assignments
 ;
-;  V00 this         [V00,T00] (  5,  5   )   byref  ->  rbx         this single-def
+;  V00 this         [V00,T00] (  5,  5   )   byref  ->  rdi         this single-def
 ;  V01 arg1         [V01,T01] (  3,  3   )     ref  ->  rsi         class-hnd single-def <System.Array>
-;  V02 arg2         [V02,T02] (  3,  3   )     ref  ->  r15         class-hnd single-def <System.Array>
-;  V03 arg3         [V03,T03] (  3,  3   )     ref  ->  r14         class-hnd single-def <System.Collections.IComparer>
+;  V02 arg2         [V02,T02] (  3,  3   )     ref  ->  rdx         class-hnd single-def <System.Array>
+;  V03 arg3         [V03,T03] (  3,  3   )     ref  ->  rcx         class-hnd single-def <System.Collections.IComparer>
 ;# V04 OutArgs      [V04    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace"
 ;
 ; Lcl frame size = 0
 
 G_M26553_IG01:
-       push     r15
-       push     r14
-       push     rbx
-       mov      rbx, rdi
-       mov      r15, rdx
-       mov      r14, rcx
-						;; size=14 bbWeight=1 PerfScore 3.75
+						;; size=0 bbWeight=1 PerfScore 0.00
 G_M26553_IG02:
-       mov      rdi, rbx
-       call     CORINFO_HELP_CHECKED_ASSIGN_REF
-       lea      rdi, bword ptr [rbx+0x08]
-       mov      rsi, r15
-       call     CORINFO_HELP_CHECKED_ASSIGN_REF
-       lea      rdi, bword ptr [rbx+0x10]
-       mov      rsi, r14
-       call     CORINFO_HELP_CHECKED_ASSIGN_REF
-       nop      
-						;; size=33 bbWeight=1 PerfScore 5.00
+       mov      gword ptr [rdi], rsi
+       mov      gword ptr [rdi+0x08], rdx
+       mov      gword ptr [rdi+0x10], rcx
+						;; size=11 bbWeight=1 PerfScore 3.00
 G_M26553_IG03:
-       pop      rbx
-       pop      r14
-       pop      r15
        ret      
-						;; size=6 bbWeight=1 PerfScore 2.50
+						;; size=1 bbWeight=1 PerfScore 1.00
 
-; Total bytes of code 53, prolog size 5, PerfScore 11.25, instruction count 19, allocated bytes for code 53 (MethodHash=6b259846) for method System.Array+SorterGenericArray:.ctor(System.Array,System.Array,System.Collections.IComparer):this (FullOpts)
+; Total bytes of code 12, prolog size 0, PerfScore 4.00, instruction count 4, allocated bytes for code 12 (MethodHash=6b259846) for method System.Array+SorterGenericArray:.ctor(System.Array,System.Array,System.Collections.IComparer):this (FullOpts)

-41 (-77.36 % of base) - System.Array+SorterObjectArray:.ctor(System.Object[],System.Object[],System.Collections.IComparer):this

 ; Assembly listing for method System.Array+SorterObjectArray:.ctor(System.Object[],System.Object[],System.Collections.IComparer):this (FullOpts)
 ; Emitting BLENDED_CODE for X64 with AVX512 - Unix
 ; FullOpts code
 ; optimized code
 ; rsp based frame
 ; partially interruptible
 ; No PGO data
 ; Final local variable assignments
 ;
-;  V00 this         [V00,T00] (  5,  5   )   byref  ->  rbx         this single-def
+;  V00 this         [V00,T00] (  5,  5   )   byref  ->  rdi         this single-def
 ;  V01 arg1         [V01,T01] (  3,  3   )     ref  ->  rsi         class-hnd single-def <System.Object[]>
-;  V02 arg2         [V02,T02] (  3,  3   )     ref  ->  r15         class-hnd single-def <System.Object[]>
-;  V03 arg3         [V03,T03] (  3,  3   )     ref  ->  r14         class-hnd single-def <System.Collections.IComparer>
+;  V02 arg2         [V02,T02] (  3,  3   )     ref  ->  rdx         class-hnd single-def <System.Object[]>
+;  V03 arg3         [V03,T03] (  3,  3   )     ref  ->  rcx         class-hnd single-def <System.Collections.IComparer>
 ;# V04 OutArgs      [V04    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace"
 ;
 ; Lcl frame size = 0
 
 G_M55325_IG01:
-       push     r15
-       push     r14
-       push     rbx
-       mov      rbx, rdi
-       mov      r15, rdx
-       mov      r14, rcx
-						;; size=14 bbWeight=1 PerfScore 3.75
+						;; size=0 bbWeight=1 PerfScore 0.00
 G_M55325_IG02:
-       mov      rdi, rbx
-       call     CORINFO_HELP_CHECKED_ASSIGN_REF
-       lea      rdi, bword ptr [rbx+0x08]
-       mov      rsi, r15
-       call     CORINFO_HELP_CHECKED_ASSIGN_REF
-       lea      rdi, bword ptr [rbx+0x10]
-       mov      rsi, r14
-       call     CORINFO_HELP_CHECKED_ASSIGN_REF
-       nop      
-						;; size=33 bbWeight=1 PerfScore 5.00
+       mov      gword ptr [rdi], rsi
+       mov      gword ptr [rdi+0x08], rdx
+       mov      gword ptr [rdi+0x10], rcx
+						;; size=11 bbWeight=1 PerfScore 3.00
 G_M55325_IG03:
-       pop      rbx
-       pop      r14
-       pop      r15
        ret      
-						;; size=6 bbWeight=1 PerfScore 2.50
+						;; size=1 bbWeight=1 PerfScore 1.00
 
-; Total bytes of code 53, prolog size 5, PerfScore 11.25, instruction count 19, allocated bytes for code 53 (MethodHash=115e27e2) for method System.Array+SorterObjectArray:.ctor(System.Object[],System.Object[],System.Collections.IComparer):this (FullOpts)
+; Total bytes of code 12, prolog size 0, PerfScore 4.00, instruction count 4, allocated bytes for code 12 (MethodHash=115e27e2) for method System.Array+SorterObjectArray:.ctor(System.Object[],System.Object[],System.Collections.IComparer):this (FullOpts)

-10 (-35.71 % of base) - System.Diagnostics.Tracing.PropertyValue:.ctor(System.Object):this

 ; Assembly listing for method System.Diagnostics.Tracing.PropertyValue:.ctor(System.Object):this (FullOpts)
 ; Emitting BLENDED_CODE for X64 with AVX512 - Unix
 ; FullOpts code
 ; optimized code
 ; rsp based frame
 ; partially interruptible
 ; No PGO data
 ; Final local variable assignments
 ;
-;  V00 this         [V00,T00] (  5,  5   )   byref  ->  rbx         this single-def
+;  V00 this         [V00,T00] (  5,  5   )   byref  ->  rdi         this single-def
 ;  V01 arg1         [V01,T01] (  3,  3   )     ref  ->  rsi         class-hnd single-def <System.Object>
 ;# V02 OutArgs      [V02    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace"
 ;
 ; Lcl frame size = 0
 
 G_M33264_IG01:
-       push     rbx
-       mov      rbx, rdi
-						;; size=4 bbWeight=1 PerfScore 1.25
+						;; size=0 bbWeight=1 PerfScore 0.00
 G_M33264_IG02:
-       mov      rdi, rbx
-       call     CORINFO_HELP_CHECKED_ASSIGN_REF
+       mov      gword ptr [rdi], rsi
        vxorps   xmm0, xmm0, xmm0
-       vmovdqu  xmmword ptr [rbx+0x10], xmm0
+       vmovdqu  xmmword ptr [rdi+0x10], xmm0
        xor      eax, eax
-       mov      dword ptr [rbx+0x08], eax
-						;; size=22 bbWeight=1 PerfScore 4.83
+       mov      dword ptr [rdi+0x08], eax
+						;; size=17 bbWeight=1 PerfScore 4.58
 G_M33264_IG03:
-       pop      rbx
        ret      
-						;; size=2 bbWeight=1 PerfScore 1.50
+						;; size=1 bbWeight=1 PerfScore 1.00
 
-; Total bytes of code 28, prolog size 1, PerfScore 7.58, instruction count 10, allocated bytes for code 28 (MethodHash=421d7e0f) for method System.Diagnostics.Tracing.PropertyValue:.ctor(System.Object):this (FullOpts)
+; Total bytes of code 18, prolog size 0, PerfScore 5.58, instruction count 6, allocated bytes for code 18 (MethodHash=421d7e0f) for method System.Diagnostics.Tracing.PropertyValue:.ctor(System.Object):this (FullOpts)

-8 (-5.52 % of base) - System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_2[System.__Canon]:b__2(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this

 ; Assembly listing for method System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_2[System.__Canon]:<GetPropertyGetter>b__2(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue: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; 0 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 this         [V00,T02] (  4,  4   )     ref  ->  r15         this class-hnd single-def <System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_2[System.__Canon]>
 ;  V01 RetBuf       [V01,T00] (  6,  6   )   byref  ->  rbx         single-def
 ;  V02 arg1         [V02,T10] (  1,  1   )  struct (32) [rbp+0x10]  do-not-enreg[SF] ld-addr-op single-def <System.Diagnostics.Tracing.PropertyValue>
 ;# V03 OutArgs      [V03    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace"
 ;* V04 tmp1         [V04    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "impAppendStmt" <System.Func`2[System.__Canon,ubyte]>
 ;  V05 tmp2         [V05,T06] (  2,  4   )  struct (32) [rbp-0x40]  do-not-enreg[SF] must-init ld-addr-op "NewObj constructor temp" <System.Diagnostics.Tracing.PropertyValue>
 ;* V06 tmp3         [V06    ] (  0,  0   )  struct (16) zero-ref    do-not-enreg[SF] ld-addr-op "Inline ldloca(s) first use temp" <System.Diagnostics.Tracing.PropertyValue+Scalar>
-;  V07 tmp4         [V07,T07] (  2,  4   )   ubyte  ->  rdx         "Inlining Arg"
+;  V07 tmp4         [V07,T07] (  2,  4   )   ubyte  ->  rax         "Inlining Arg"
 ;* V08 tmp5         [V08    ] (  0,  0   )  struct (16) zero-ref    "Inlining Arg" <System.Diagnostics.Tracing.PropertyValue+Scalar>
 ;* V09 tmp6         [V09    ] (  0,  0   )     ref  ->  zero-ref    single-def "V05.[000..008)"
 ;* V10 tmp7         [V10    ] (  0,  0   )     int  ->  zero-ref    "V05.[008..012)"
 ;* V11 tmp8         [V11    ] (  0,  0   )   ubyte  ->  zero-ref    "V05.[016..017)"
 ;* V12 tmp9         [V12    ] (  0,  0   )   ubyte  ->  zero-ref    "V06.[000..001)"
 ;* V13 tmp10        [V13    ] (  0,  0   )   ubyte  ->  zero-ref    "V08.[000..001)"
 ;  V14 tmp11        [V14,T05] (  2,  4   )     ref  ->  rsi         single-def "argument with side effect"
 ;  V15 tmp12        [V15,T03] (  3,  6   )     ref  ->  r14         single-def "argument with side effect"
 ;  V16 rat0         [V16,T08] (  2,  3   )    long  ->  rdi         "Spilling to split statement for tree"
 ;  V17 rat1         [V17,T04] (  3,  4.50)     ref  ->  rsi         "Spilling to split statement for tree"
 ;  V18 rat2         [V18,T01] (  5,  7.50)     ref  ->  rax         "replacement local"
 ;  V19 rat3         [V19,T09] (  3,  2.50)    long  ->  rdi         "CSE for expectedClsNode"
 ;
 ; Lcl frame size = 40
 
 G_M22027_IG01:
        push     rbp
        push     r15
        push     r14
        push     rbx
        sub      rsp, 40
        lea      rbp, [rsp+0x40]
        vxorps   xmm8, xmm8, xmm8
        vmovdqu  ymmword ptr [rbp-0x40], ymm8
        mov      qword ptr [rbp-0x20], rdi
        mov      r15, rdi
        mov      rbx, rsi
 						;; size=35 bbWeight=1 PerfScore 8.58
 G_M22027_IG02:
        mov      r14, gword ptr [r15+0x08]
        mov      rdi, qword ptr [r15]
        mov      rdi, qword ptr [rdi+0x30]
        mov      rdi, qword ptr [rdi]
        mov      rdi, qword ptr [rdi]
        mov      rsi, gword ptr [rbp+0x10]
        mov      rax, rsi
        test     rax, rax
        je       SHORT G_M22027_IG05
 						;; size=29 bbWeight=1 PerfScore 12.50
 G_M22027_IG03:
        cmp      qword ptr [rax], rdi
        je       SHORT G_M22027_IG05
 						;; size=5 bbWeight=0.50 PerfScore 2.00
 G_M22027_IG04:
        mov      rax, 0xD1FFAB1E      ; code for CORINFO_HELP_CHKCASTANY
        call     [rax]CORINFO_HELP_CHKCASTANY
 						;; size=12 bbWeight=0.25 PerfScore 0.81
 G_M22027_IG05:
        mov      rsi, rax
        mov      rdi, gword ptr [r14+0x08]
        call     [r14+0x18]System.Func`2[System.__Canon,ubyte]:Invoke(System.__Canon):ubyte:this
-       mov      edx, eax
        vxorps   xmm0, xmm0, xmm0
        vmovdqu  xmmword ptr [rbp-0x30], xmm0
-       mov      rdi, rbx
-       lea      rsi, bword ptr [rbp-0x40]
-       call     CORINFO_HELP_ASSIGN_BYREF
-       movsq    
-       movsq    
-       movsq    
+						;; size=20 bbWeight=1 PerfScore 6.58
+G_M22027_IG06:
+       vmovdqu  ymm0, ymmword ptr [rbp-0x40]
+       vmovdqu  ymmword ptr [rbx], ymm0
+						;; size=9 bbWeight=1 PerfScore 6.00
+G_M22027_IG07:
        mov      dword ptr [rbx+0x08], 1
-       mov      byte  ptr [rbx+0x10], dl
+       mov      byte  ptr [rbx+0x10], al
        mov      rax, rbx
-						;; size=53 bbWeight=1 PerfScore 13.83
-G_M22027_IG06:
+						;; size=13 bbWeight=1 PerfScore 2.25
+G_M22027_IG08:
+       vzeroupper 
        add      rsp, 40
        pop      rbx
        pop      r14
        pop      r15
        pop      rbp
        ret      
-						;; size=11 bbWeight=1 PerfScore 3.25
+						;; size=14 bbWeight=1 PerfScore 4.25
 
-; Total bytes of code 145, prolog size 29, PerfScore 40.98, instruction count 45, allocated bytes for code 145 (MethodHash=1b2ba9f4) for method System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_2[System.__Canon]:<GetPropertyGetter>b__2(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
+; Total bytes of code 137, prolog size 29, PerfScore 42.98, instruction count 41, allocated bytes for code 137 (MethodHash=1b2ba9f4) for method System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_2[System.__Canon]:<GetPropertyGetter>b__2(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)

-8 (-5.52 % of base) - System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_3[System.__Canon]:b__3(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this

 ; Assembly listing for method System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_3[System.__Canon]:<GetPropertyGetter>b__3(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue: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; 0 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 this         [V00,T02] (  4,  4   )     ref  ->  r15         this class-hnd single-def <System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_3[System.__Canon]>
 ;  V01 RetBuf       [V01,T00] (  6,  6   )   byref  ->  rbx         single-def
 ;  V02 arg1         [V02,T10] (  1,  1   )  struct (32) [rbp+0x10]  do-not-enreg[SF] ld-addr-op single-def <System.Diagnostics.Tracing.PropertyValue>
 ;# V03 OutArgs      [V03    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace"
 ;* V04 tmp1         [V04    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "impAppendStmt" <System.Func`2[System.__Canon,ubyte]>
 ;  V05 tmp2         [V05,T06] (  2,  4   )  struct (32) [rbp-0x40]  do-not-enreg[SF] must-init ld-addr-op "NewObj constructor temp" <System.Diagnostics.Tracing.PropertyValue>
 ;* V06 tmp3         [V06    ] (  0,  0   )  struct (16) zero-ref    do-not-enreg[SF] ld-addr-op "Inline ldloca(s) first use temp" <System.Diagnostics.Tracing.PropertyValue+Scalar>
-;  V07 tmp4         [V07,T07] (  2,  4   )   ubyte  ->  rdx         "Inlining Arg"
+;  V07 tmp4         [V07,T07] (  2,  4   )   ubyte  ->  rax         "Inlining Arg"
 ;* V08 tmp5         [V08    ] (  0,  0   )  struct (16) zero-ref    "Inlining Arg" <System.Diagnostics.Tracing.PropertyValue+Scalar>
 ;* V09 tmp6         [V09    ] (  0,  0   )     ref  ->  zero-ref    single-def "V05.[000..008)"
 ;* V10 tmp7         [V10    ] (  0,  0   )     int  ->  zero-ref    "V05.[008..012)"
 ;* V11 tmp8         [V11    ] (  0,  0   )   ubyte  ->  zero-ref    "V05.[016..017)"
 ;* V12 tmp9         [V12    ] (  0,  0   )   ubyte  ->  zero-ref    "V06.[000..001)"
 ;* V13 tmp10        [V13    ] (  0,  0   )   ubyte  ->  zero-ref    "V08.[000..001)"
 ;  V14 tmp11        [V14,T05] (  2,  4   )     ref  ->  rsi         single-def "argument with side effect"
 ;  V15 tmp12        [V15,T03] (  3,  6   )     ref  ->  r14         single-def "argument with side effect"
 ;  V16 rat0         [V16,T08] (  2,  3   )    long  ->  rdi         "Spilling to split statement for tree"
 ;  V17 rat1         [V17,T04] (  3,  4.50)     ref  ->  rsi         "Spilling to split statement for tree"
 ;  V18 rat2         [V18,T01] (  5,  7.50)     ref  ->  rax         "replacement local"
 ;  V19 rat3         [V19,T09] (  3,  2.50)    long  ->  rdi         "CSE for expectedClsNode"
 ;
 ; Lcl frame size = 40
 
 G_M55051_IG01:
        push     rbp
        push     r15
        push     r14
        push     rbx
        sub      rsp, 40
        lea      rbp, [rsp+0x40]
        vxorps   xmm8, xmm8, xmm8
        vmovdqu  ymmword ptr [rbp-0x40], ymm8
        mov      qword ptr [rbp-0x20], rdi
        mov      r15, rdi
        mov      rbx, rsi
 						;; size=35 bbWeight=1 PerfScore 8.58
 G_M55051_IG02:
        mov      r14, gword ptr [r15+0x08]
        mov      rdi, qword ptr [r15]
        mov      rdi, qword ptr [rdi+0x30]
        mov      rdi, qword ptr [rdi]
        mov      rdi, qword ptr [rdi]
        mov      rsi, gword ptr [rbp+0x10]
        mov      rax, rsi
        test     rax, rax
        je       SHORT G_M55051_IG05
 						;; size=29 bbWeight=1 PerfScore 12.50
 G_M55051_IG03:
        cmp      qword ptr [rax], rdi
        je       SHORT G_M55051_IG05
 						;; size=5 bbWeight=0.50 PerfScore 2.00
 G_M55051_IG04:
        mov      rax, 0xD1FFAB1E      ; code for CORINFO_HELP_CHKCASTANY
        call     [rax]CORINFO_HELP_CHKCASTANY
 						;; size=12 bbWeight=0.25 PerfScore 0.81
 G_M55051_IG05:
        mov      rsi, rax
        mov      rdi, gword ptr [r14+0x08]
        call     [r14+0x18]System.Func`2[System.__Canon,ubyte]:Invoke(System.__Canon):ubyte:this
-       mov      edx, eax
        vxorps   xmm0, xmm0, xmm0
        vmovdqu  xmmword ptr [rbp-0x30], xmm0
-       mov      rdi, rbx
-       lea      rsi, bword ptr [rbp-0x40]
-       call     CORINFO_HELP_ASSIGN_BYREF
-       movsq    
-       movsq    
-       movsq    
+						;; size=20 bbWeight=1 PerfScore 6.58
+G_M55051_IG06:
+       vmovdqu  ymm0, ymmword ptr [rbp-0x40]
+       vmovdqu  ymmword ptr [rbx], ymm0
+						;; size=9 bbWeight=1 PerfScore 6.00
+G_M55051_IG07:
        mov      dword ptr [rbx+0x08], 1
-       mov      byte  ptr [rbx+0x10], dl
+       mov      byte  ptr [rbx+0x10], al
        mov      rax, rbx
-						;; size=53 bbWeight=1 PerfScore 13.83
-G_M55051_IG06:
+						;; size=13 bbWeight=1 PerfScore 2.25
+G_M55051_IG08:
+       vzeroupper 
        add      rsp, 40
        pop      rbx
        pop      r14
        pop      r15
        pop      rbp
        ret      
-						;; size=11 bbWeight=1 PerfScore 3.25
+						;; size=14 bbWeight=1 PerfScore 4.25
 
-; Total bytes of code 145, prolog size 29, PerfScore 40.98, instruction count 45, allocated bytes for code 145 (MethodHash=d5e128f4) for method System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_3[System.__Canon]:<GetPropertyGetter>b__3(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
+; Total bytes of code 137, prolog size 29, PerfScore 42.98, instruction count 41, allocated bytes for code 137 (MethodHash=d5e128f4) for method System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_3[System.__Canon]:<GetPropertyGetter>b__3(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)

-8 (-5.52 % of base) - System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_4[System.__Canon]:b__4(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this

 ; Assembly listing for method System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_4[System.__Canon]:<GetPropertyGetter>b__4(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue: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; 0 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 this         [V00,T02] (  4,  4   )     ref  ->  r15         this class-hnd single-def <System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_4[System.__Canon]>
 ;  V01 RetBuf       [V01,T00] (  6,  6   )   byref  ->  rbx         single-def
 ;  V02 arg1         [V02,T10] (  1,  1   )  struct (32) [rbp+0x10]  do-not-enreg[SF] ld-addr-op single-def <System.Diagnostics.Tracing.PropertyValue>
 ;# V03 OutArgs      [V03    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace"
 ;* V04 tmp1         [V04    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "impAppendStmt" <System.Func`2[System.__Canon,byte]>
 ;  V05 tmp2         [V05,T06] (  2,  4   )  struct (32) [rbp-0x40]  do-not-enreg[SF] must-init ld-addr-op "NewObj constructor temp" <System.Diagnostics.Tracing.PropertyValue>
 ;* V06 tmp3         [V06    ] (  0,  0   )  struct (16) zero-ref    do-not-enreg[SF] ld-addr-op "Inline ldloca(s) first use temp" <System.Diagnostics.Tracing.PropertyValue+Scalar>
-;  V07 tmp4         [V07,T07] (  2,  4   )    byte  ->  rdx         "Inlining Arg"
+;  V07 tmp4         [V07,T07] (  2,  4   )    byte  ->  rax         "Inlining Arg"
 ;* V08 tmp5         [V08    ] (  0,  0   )  struct (16) zero-ref    "Inlining Arg" <System.Diagnostics.Tracing.PropertyValue+Scalar>
 ;* V09 tmp6         [V09    ] (  0,  0   )     ref  ->  zero-ref    single-def "V05.[000..008)"
 ;* V10 tmp7         [V10    ] (  0,  0   )     int  ->  zero-ref    "V05.[008..012)"
 ;* V11 tmp8         [V11    ] (  0,  0   )    byte  ->  zero-ref    "V05.[016..017)"
 ;* V12 tmp9         [V12    ] (  0,  0   )    byte  ->  zero-ref    "V06.[000..001)"
 ;* V13 tmp10        [V13    ] (  0,  0   )    byte  ->  zero-ref    "V08.[000..001)"
 ;  V14 tmp11        [V14,T05] (  2,  4   )     ref  ->  rsi         single-def "argument with side effect"
 ;  V15 tmp12        [V15,T03] (  3,  6   )     ref  ->  r14         single-def "argument with side effect"
 ;  V16 rat0         [V16,T08] (  2,  3   )    long  ->  rdi         "Spilling to split statement for tree"
 ;  V17 rat1         [V17,T04] (  3,  4.50)     ref  ->  rsi         "Spilling to split statement for tree"
 ;  V18 rat2         [V18,T01] (  5,  7.50)     ref  ->  rax         "replacement local"
 ;  V19 rat3         [V19,T09] (  3,  2.50)    long  ->  rdi         "CSE for expectedClsNode"
 ;
 ; Lcl frame size = 40
 
 G_M44171_IG01:
        push     rbp
        push     r15
        push     r14
        push     rbx
        sub      rsp, 40
        lea      rbp, [rsp+0x40]
        vxorps   xmm8, xmm8, xmm8
        vmovdqu  ymmword ptr [rbp-0x40], ymm8
        mov      qword ptr [rbp-0x20], rdi
        mov      r15, rdi
        mov      rbx, rsi
 						;; size=35 bbWeight=1 PerfScore 8.58
 G_M44171_IG02:
        mov      r14, gword ptr [r15+0x08]
        mov      rdi, qword ptr [r15]
        mov      rdi, qword ptr [rdi+0x30]
        mov      rdi, qword ptr [rdi]
        mov      rdi, qword ptr [rdi]
        mov      rsi, gword ptr [rbp+0x10]
        mov      rax, rsi
        test     rax, rax
        je       SHORT G_M44171_IG05
 						;; size=29 bbWeight=1 PerfScore 12.50
 G_M44171_IG03:
        cmp      qword ptr [rax], rdi
        je       SHORT G_M44171_IG05
 						;; size=5 bbWeight=0.50 PerfScore 2.00
 G_M44171_IG04:
        mov      rax, 0xD1FFAB1E      ; code for CORINFO_HELP_CHKCASTANY
        call     [rax]CORINFO_HELP_CHKCASTANY
 						;; size=12 bbWeight=0.25 PerfScore 0.81
 G_M44171_IG05:
        mov      rsi, rax
        mov      rdi, gword ptr [r14+0x08]
        call     [r14+0x18]System.Func`2[System.__Canon,byte]:Invoke(System.__Canon):byte:this
-       mov      edx, eax
        vxorps   xmm0, xmm0, xmm0
        vmovdqu  xmmword ptr [rbp-0x30], xmm0
-       mov      rdi, rbx
-       lea      rsi, bword ptr [rbp-0x40]
-       call     CORINFO_HELP_ASSIGN_BYREF
-       movsq    
-       movsq    
-       movsq    
+						;; size=20 bbWeight=1 PerfScore 6.58
+G_M44171_IG06:
+       vmovdqu  ymm0, ymmword ptr [rbp-0x40]
+       vmovdqu  ymmword ptr [rbx], ymm0
+						;; size=9 bbWeight=1 PerfScore 6.00
+G_M44171_IG07:
        mov      dword ptr [rbx+0x08], 1
-       mov      byte  ptr [rbx+0x10], dl
+       mov      byte  ptr [rbx+0x10], al
        mov      rax, rbx
-						;; size=53 bbWeight=1 PerfScore 13.83
-G_M44171_IG06:
+						;; size=13 bbWeight=1 PerfScore 2.25
+G_M44171_IG08:
+       vzeroupper 
        add      rsp, 40
        pop      rbx
        pop      r14
        pop      r15
        pop      rbp
        ret      
-						;; size=11 bbWeight=1 PerfScore 3.25
+						;; size=14 bbWeight=1 PerfScore 4.25
 
-; Total bytes of code 145, prolog size 29, PerfScore 40.98, instruction count 45, allocated bytes for code 145 (MethodHash=2fca5374) for method System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_4[System.__Canon]:<GetPropertyGetter>b__4(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
+; Total bytes of code 137, prolog size 29, PerfScore 42.98, instruction count 41, allocated bytes for code 137 (MethodHash=2fca5374) for method System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_4[System.__Canon]:<GetPropertyGetter>b__4(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)

-8 (-5.48 % of base) - System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_5[System.__Canon]:b__5(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this

 ; Assembly listing for method System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_5[System.__Canon]:<GetPropertyGetter>b__5(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue: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; 0 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 this         [V00,T02] (  4,  4   )     ref  ->  r15         this class-hnd single-def <System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_5[System.__Canon]>
 ;  V01 RetBuf       [V01,T00] (  6,  6   )   byref  ->  rbx         single-def
 ;  V02 arg1         [V02,T10] (  1,  1   )  struct (32) [rbp+0x10]  do-not-enreg[SF] ld-addr-op single-def <System.Diagnostics.Tracing.PropertyValue>
 ;# V03 OutArgs      [V03    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace"
 ;* V04 tmp1         [V04    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "impAppendStmt" <System.Func`2[System.__Canon,ushort]>
 ;  V05 tmp2         [V05,T06] (  2,  4   )  struct (32) [rbp-0x40]  do-not-enreg[SF] must-init ld-addr-op "NewObj constructor temp" <System.Diagnostics.Tracing.PropertyValue>
 ;* V06 tmp3         [V06    ] (  0,  0   )  struct (16) zero-ref    do-not-enreg[SF] ld-addr-op "Inline ldloca(s) first use temp" <System.Diagnostics.Tracing.PropertyValue+Scalar>
-;  V07 tmp4         [V07,T07] (  2,  4   )  ushort  ->  rdx         "Inlining Arg"
+;  V07 tmp4         [V07,T07] (  2,  4   )  ushort  ->  rax         "Inlining Arg"
 ;* V08 tmp5         [V08    ] (  0,  0   )  struct (16) zero-ref    "Inlining Arg" <System.Diagnostics.Tracing.PropertyValue+Scalar>
 ;* V09 tmp6         [V09    ] (  0,  0   )     ref  ->  zero-ref    single-def "V05.[000..008)"
 ;* V10 tmp7         [V10    ] (  0,  0   )     int  ->  zero-ref    "V05.[008..012)"
 ;* V11 tmp8         [V11    ] (  0,  0   )  ushort  ->  zero-ref    "V05.[016..018)"
 ;* V12 tmp9         [V12    ] (  0,  0   )  ushort  ->  zero-ref    "V06.[000..002)"
 ;* V13 tmp10        [V13    ] (  0,  0   )  ushort  ->  zero-ref    "V08.[000..002)"
 ;  V14 tmp11        [V14,T05] (  2,  4   )     ref  ->  rsi         single-def "argument with side effect"
 ;  V15 tmp12        [V15,T03] (  3,  6   )     ref  ->  r14         single-def "argument with side effect"
 ;  V16 rat0         [V16,T08] (  2,  3   )    long  ->  rdi         "Spilling to split statement for tree"
 ;  V17 rat1         [V17,T04] (  3,  4.50)     ref  ->  rsi         "Spilling to split statement for tree"
 ;  V18 rat2         [V18,T01] (  5,  7.50)     ref  ->  rax         "replacement local"
 ;  V19 rat3         [V19,T09] (  3,  2.50)    long  ->  rdi         "CSE for expectedClsNode"
 ;
 ; Lcl frame size = 40
 
 G_M43915_IG01:
        push     rbp
        push     r15
        push     r14
        push     rbx
        sub      rsp, 40
        lea      rbp, [rsp+0x40]
        vxorps   xmm8, xmm8, xmm8
        vmovdqu  ymmword ptr [rbp-0x40], ymm8
        mov      qword ptr [rbp-0x20], rdi
        mov      r15, rdi
        mov      rbx, rsi
 						;; size=35 bbWeight=1 PerfScore 8.58
 G_M43915_IG02:
        mov      r14, gword ptr [r15+0x08]
        mov      rdi, qword ptr [r15]
        mov      rdi, qword ptr [rdi+0x30]
        mov      rdi, qword ptr [rdi]
        mov      rdi, qword ptr [rdi]
        mov      rsi, gword ptr [rbp+0x10]
        mov      rax, rsi
        test     rax, rax
        je       SHORT G_M43915_IG05
 						;; size=29 bbWeight=1 PerfScore 12.50
 G_M43915_IG03:
        cmp      qword ptr [rax], rdi
        je       SHORT G_M43915_IG05
 						;; size=5 bbWeight=0.50 PerfScore 2.00
 G_M43915_IG04:
        mov      rax, 0xD1FFAB1E      ; code for CORINFO_HELP_CHKCASTANY
        call     [rax]CORINFO_HELP_CHKCASTANY
 						;; size=12 bbWeight=0.25 PerfScore 0.81
 G_M43915_IG05:
        mov      rsi, rax
        mov      rdi, gword ptr [r14+0x08]
        call     [r14+0x18]System.Func`2[System.__Canon,ushort]:Invoke(System.__Canon):ushort:this
-       mov      edx, eax
        vxorps   xmm0, xmm0, xmm0
        vmovdqu  xmmword ptr [rbp-0x30], xmm0
-       mov      rdi, rbx
-       lea      rsi, bword ptr [rbp-0x40]
-       call     CORINFO_HELP_ASSIGN_BYREF
-       movsq    
-       movsq    
-       movsq    
+						;; size=20 bbWeight=1 PerfScore 6.58
+G_M43915_IG06:
+       vmovdqu  ymm0, ymmword ptr [rbp-0x40]
+       vmovdqu  ymmword ptr [rbx], ymm0
+						;; size=9 bbWeight=1 PerfScore 6.00
+G_M43915_IG07:
        mov      dword ptr [rbx+0x08], 2
-       mov      word  ptr [rbx+0x10], dx
+       mov      word  ptr [rbx+0x10], ax
        mov      rax, rbx
-						;; size=54 bbWeight=1 PerfScore 13.83
-G_M43915_IG06:
+						;; size=14 bbWeight=1 PerfScore 2.25
+G_M43915_IG08:
+       vzeroupper 
        add      rsp, 40
        pop      rbx
        pop      r14
        pop      r15
        pop      rbp
        ret      
-						;; size=11 bbWeight=1 PerfScore 3.25
+						;; size=14 bbWeight=1 PerfScore 4.25
 
-; Total bytes of code 146, prolog size 29, PerfScore 40.98, instruction count 45, allocated bytes for code 146 (MethodHash=2b585474) for method System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_5[System.__Canon]:<GetPropertyGetter>b__5(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
+; Total bytes of code 138, prolog size 29, PerfScore 42.98, instruction count 41, allocated bytes for code 138 (MethodHash=2b585474) for method System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_5[System.__Canon]:<GetPropertyGetter>b__5(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)

-8 (-5.48 % of base) - System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_6[System.__Canon]:b__6(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this

 ; Assembly listing for method System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_6[System.__Canon]:<GetPropertyGetter>b__6(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue: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; 0 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 this         [V00,T02] (  4,  4   )     ref  ->  r15         this class-hnd single-def <System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_6[System.__Canon]>
 ;  V01 RetBuf       [V01,T00] (  6,  6   )   byref  ->  rbx         single-def
 ;  V02 arg1         [V02,T10] (  1,  1   )  struct (32) [rbp+0x10]  do-not-enreg[SF] ld-addr-op single-def <System.Diagnostics.Tracing.PropertyValue>
 ;# V03 OutArgs      [V03    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace"
 ;* V04 tmp1         [V04    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "impAppendStmt" <System.Func`2[System.__Canon,short]>
 ;  V05 tmp2         [V05,T06] (  2,  4   )  struct (32) [rbp-0x40]  do-not-enreg[SF] must-init ld-addr-op "NewObj constructor temp" <System.Diagnostics.Tracing.PropertyValue>
 ;* V06 tmp3         [V06    ] (  0,  0   )  struct (16) zero-ref    do-not-enreg[SF] ld-addr-op "Inline ldloca(s) first use temp" <System.Diagnostics.Tracing.PropertyValue+Scalar>
-;  V07 tmp4         [V07,T07] (  2,  4   )   short  ->  rdx         "Inlining Arg"
+;  V07 tmp4         [V07,T07] (  2,  4   )   short  ->  rax         "Inlining Arg"
 ;* V08 tmp5         [V08    ] (  0,  0   )  struct (16) zero-ref    "Inlining Arg" <System.Diagnostics.Tracing.PropertyValue+Scalar>
 ;* V09 tmp6         [V09    ] (  0,  0   )     ref  ->  zero-ref    single-def "V05.[000..008)"
 ;* V10 tmp7         [V10    ] (  0,  0   )     int  ->  zero-ref    "V05.[008..012)"
 ;* V11 tmp8         [V11    ] (  0,  0   )   short  ->  zero-ref    "V05.[016..018)"
 ;* V12 tmp9         [V12    ] (  0,  0   )   short  ->  zero-ref    "V06.[000..002)"
 ;* V13 tmp10        [V13    ] (  0,  0   )   short  ->  zero-ref    "V08.[000..002)"
 ;  V14 tmp11        [V14,T05] (  2,  4   )     ref  ->  rsi         single-def "argument with side effect"
 ;  V15 tmp12        [V15,T03] (  3,  6   )     ref  ->  r14         single-def "argument with side effect"
 ;  V16 rat0         [V16,T08] (  2,  3   )    long  ->  rdi         "Spilling to split statement for tree"
 ;  V17 rat1         [V17,T04] (  3,  4.50)     ref  ->  rsi         "Spilling to split statement for tree"
 ;  V18 rat2         [V18,T01] (  5,  7.50)     ref  ->  rax         "replacement local"
 ;  V19 rat3         [V19,T09] (  3,  2.50)    long  ->  rdi         "CSE for expectedClsNode"
 ;
 ; Lcl frame size = 40
 
 G_M14859_IG01:
        push     rbp
        push     r15
        push     r14
        push     rbx
        sub      rsp, 40
        lea      rbp, [rsp+0x40]
        vxorps   xmm8, xmm8, xmm8
        vmovdqu  ymmword ptr [rbp-0x40], ymm8
        mov      qword ptr [rbp-0x20], rdi
        mov      r15, rdi
        mov      rbx, rsi
 						;; size=35 bbWeight=1 PerfScore 8.58
 G_M14859_IG02:
        mov      r14, gword ptr [r15+0x08]
        mov      rdi, qword ptr [r15]
        mov      rdi, qword ptr [rdi+0x30]
        mov      rdi, qword ptr [rdi]
        mov      rdi, qword ptr [rdi]
        mov      rsi, gword ptr [rbp+0x10]
        mov      rax, rsi
        test     rax, rax
        je       SHORT G_M14859_IG05
 						;; size=29 bbWeight=1 PerfScore 12.50
 G_M14859_IG03:
        cmp      qword ptr [rax], rdi
        je       SHORT G_M14859_IG05
 						;; size=5 bbWeight=0.50 PerfScore 2.00
 G_M14859_IG04:
        mov      rax, 0xD1FFAB1E      ; code for CORINFO_HELP_CHKCASTANY
        call     [rax]CORINFO_HELP_CHKCASTANY
 						;; size=12 bbWeight=0.25 PerfScore 0.81
 G_M14859_IG05:
        mov      rsi, rax
        mov      rdi, gword ptr [r14+0x08]
        call     [r14+0x18]System.Func`2[System.__Canon,short]:Invoke(System.__Canon):short:this
-       mov      edx, eax
        vxorps   xmm0, xmm0, xmm0
        vmovdqu  xmmword ptr [rbp-0x30], xmm0
-       mov      rdi, rbx
-       lea      rsi, bword ptr [rbp-0x40]
-       call     CORINFO_HELP_ASSIGN_BYREF
-       movsq    
-       movsq    
-       movsq    
+						;; size=20 bbWeight=1 PerfScore 6.58
+G_M14859_IG06:
+       vmovdqu  ymm0, ymmword ptr [rbp-0x40]
+       vmovdqu  ymmword ptr [rbx], ymm0
+						;; size=9 bbWeight=1 PerfScore 6.00
+G_M14859_IG07:
        mov      dword ptr [rbx+0x08], 2
-       mov      word  ptr [rbx+0x10], dx
+       mov      word  ptr [rbx+0x10], ax
        mov      rax, rbx
-						;; size=54 bbWeight=1 PerfScore 13.83
-G_M14859_IG06:
+						;; size=14 bbWeight=1 PerfScore 2.25
+G_M14859_IG08:
+       vzeroupper 
        add      rsp, 40
        pop      rbx
        pop      r14
        pop      r15
        pop      rbp
        ret      
-						;; size=11 bbWeight=1 PerfScore 3.25
+						;; size=14 bbWeight=1 PerfScore 4.25
 
-; Total bytes of code 146, prolog size 29, PerfScore 40.98, instruction count 45, allocated bytes for code 146 (MethodHash=3962c5f4) for method System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_6[System.__Canon]:<GetPropertyGetter>b__6(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
+; Total bytes of code 138, prolog size 29, PerfScore 42.98, instruction count 41, allocated bytes for code 138 (MethodHash=3962c5f4) for method System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_6[System.__Canon]:<GetPropertyGetter>b__6(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)

-8 (-5.48 % of base) - System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_7[System.__Canon]:b__7(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this

 ; Assembly listing for method System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_7[System.__Canon]:<GetPropertyGetter>b__7(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue: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; 0 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 this         [V00,T02] (  4,  4   )     ref  ->  r15         this class-hnd single-def <System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_7[System.__Canon]>
 ;  V01 RetBuf       [V01,T00] (  6,  6   )   byref  ->  rbx         single-def
 ;  V02 arg1         [V02,T10] (  1,  1   )  struct (32) [rbp+0x10]  do-not-enreg[SF] ld-addr-op single-def <System.Diagnostics.Tracing.PropertyValue>
 ;# V03 OutArgs      [V03    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace"
 ;* V04 tmp1         [V04    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "impAppendStmt" <System.Func`2[System.__Canon,ushort]>
 ;  V05 tmp2         [V05,T06] (  2,  4   )  struct (32) [rbp-0x40]  do-not-enreg[SF] must-init ld-addr-op "NewObj constructor temp" <System.Diagnostics.Tracing.PropertyValue>
 ;* V06 tmp3         [V06    ] (  0,  0   )  struct (16) zero-ref    do-not-enreg[SF] ld-addr-op "Inline ldloca(s) first use temp" <System.Diagnostics.Tracing.PropertyValue+Scalar>
-;  V07 tmp4         [V07,T07] (  2,  4   )  ushort  ->  rdx         "Inlining Arg"
+;  V07 tmp4         [V07,T07] (  2,  4   )  ushort  ->  rax         "Inlining Arg"
 ;* V08 tmp5         [V08    ] (  0,  0   )  struct (16) zero-ref    "Inlining Arg" <System.Diagnostics.Tracing.PropertyValue+Scalar>
 ;* V09 tmp6         [V09    ] (  0,  0   )     ref  ->  zero-ref    single-def "V05.[000..008)"
 ;* V10 tmp7         [V10    ] (  0,  0   )     int  ->  zero-ref    "V05.[008..012)"
 ;* V11 tmp8         [V11    ] (  0,  0   )  ushort  ->  zero-ref    "V05.[016..018)"
 ;* V12 tmp9         [V12    ] (  0,  0   )  ushort  ->  zero-ref    "V06.[000..002)"
 ;* V13 tmp10        [V13    ] (  0,  0   )  ushort  ->  zero-ref    "V08.[000..002)"
 ;  V14 tmp11        [V14,T05] (  2,  4   )     ref  ->  rsi         single-def "argument with side effect"
 ;  V15 tmp12        [V15,T03] (  3,  6   )     ref  ->  r14         single-def "argument with side effect"
 ;  V16 rat0         [V16,T08] (  2,  3   )    long  ->  rdi         "Spilling to split statement for tree"
 ;  V17 rat1         [V17,T04] (  3,  4.50)     ref  ->  rsi         "Spilling to split statement for tree"
 ;  V18 rat2         [V18,T01] (  5,  7.50)     ref  ->  rax         "replacement local"
 ;  V19 rat3         [V19,T09] (  3,  2.50)    long  ->  rdi         "CSE for expectedClsNode"
 ;
 ; Lcl frame size = 40
 
 G_M47883_IG01:
        push     rbp
        push     r15
        push     r14
        push     rbx
        sub      rsp, 40
        lea      rbp, [rsp+0x40]
        vxorps   xmm8, xmm8, xmm8
        vmovdqu  ymmword ptr [rbp-0x40], ymm8
        mov      qword ptr [rbp-0x20], rdi
        mov      r15, rdi
        mov      rbx, rsi
 						;; size=35 bbWeight=1 PerfScore 8.58
 G_M47883_IG02:
        mov      r14, gword ptr [r15+0x08]
        mov      rdi, qword ptr [r15]
        mov      rdi, qword ptr [rdi+0x30]
        mov      rdi, qword ptr [rdi]
        mov      rdi, qword ptr [rdi]
        mov      rsi, gword ptr [rbp+0x10]
        mov      rax, rsi
        test     rax, rax
        je       SHORT G_M47883_IG05
 						;; size=29 bbWeight=1 PerfScore 12.50
 G_M47883_IG03:
        cmp      qword ptr [rax], rdi
        je       SHORT G_M47883_IG05
 						;; size=5 bbWeight=0.50 PerfScore 2.00
 G_M47883_IG04:
        mov      rax, 0xD1FFAB1E      ; code for CORINFO_HELP_CHKCASTANY
        call     [rax]CORINFO_HELP_CHKCASTANY
 						;; size=12 bbWeight=0.25 PerfScore 0.81
 G_M47883_IG05:
        mov      rsi, rax
        mov      rdi, gword ptr [r14+0x08]
        call     [r14+0x18]System.Func`2[System.__Canon,ushort]:Invoke(System.__Canon):ushort:this
-       mov      edx, eax
        vxorps   xmm0, xmm0, xmm0
        vmovdqu  xmmword ptr [rbp-0x30], xmm0
-       mov      rdi, rbx
-       lea      rsi, bword ptr [rbp-0x40]
-       call     CORINFO_HELP_ASSIGN_BYREF
-       movsq    
-       movsq    
-       movsq    
+						;; size=20 bbWeight=1 PerfScore 6.58
+G_M47883_IG06:
+       vmovdqu  ymm0, ymmword ptr [rbp-0x40]
+       vmovdqu  ymmword ptr [rbx], ymm0
+						;; size=9 bbWeight=1 PerfScore 6.00
+G_M47883_IG07:
        mov      dword ptr [rbx+0x08], 2
-       mov      word  ptr [rbx+0x10], dx
+       mov      word  ptr [rbx+0x10], ax
        mov      rax, rbx
-						;; size=54 bbWeight=1 PerfScore 13.83
-G_M47883_IG06:
+						;; size=14 bbWeight=1 PerfScore 2.25
+G_M47883_IG08:
+       vzeroupper 
        add      rsp, 40
        pop      rbx
        pop      r14
        pop      r15
        pop      rbp
        ret      
-						;; size=11 bbWeight=1 PerfScore 3.25
+						;; size=14 bbWeight=1 PerfScore 4.25
 
-; Total bytes of code 146, prolog size 29, PerfScore 40.98, instruction count 45, allocated bytes for code 146 (MethodHash=f41844f4) for method System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_7[System.__Canon]:<GetPropertyGetter>b__7(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
+; Total bytes of code 138, prolog size 29, PerfScore 42.98, instruction count 41, allocated bytes for code 138 (MethodHash=f41844f4) for method System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_7[System.__Canon]:<GetPropertyGetter>b__7(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)

-8 (-5.52 % of base) - System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_8[System.__Canon]:b__8(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this

 ; Assembly listing for method System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_8[System.__Canon]:<GetPropertyGetter>b__8(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue: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; 0 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 this         [V00,T02] (  4,  4   )     ref  ->  r15         this class-hnd single-def <System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_8[System.__Canon]>
 ;  V01 RetBuf       [V01,T00] (  6,  6   )   byref  ->  rbx         single-def
 ;  V02 arg1         [V02,T10] (  1,  1   )  struct (32) [rbp+0x10]  do-not-enreg[SF] ld-addr-op single-def <System.Diagnostics.Tracing.PropertyValue>
 ;# V03 OutArgs      [V03    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace"
 ;* V04 tmp1         [V04    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "impAppendStmt" <System.Func`2[System.__Canon,int]>
 ;  V05 tmp2         [V05,T06] (  2,  4   )  struct (32) [rbp-0x40]  do-not-enreg[SF] must-init ld-addr-op "NewObj constructor temp" <System.Diagnostics.Tracing.PropertyValue>
 ;* V06 tmp3         [V06    ] (  0,  0   )  struct (16) zero-ref    do-not-enreg[SF] ld-addr-op "Inline ldloca(s) first use temp" <System.Diagnostics.Tracing.PropertyValue+Scalar>
-;  V07 tmp4         [V07,T07] (  2,  4   )     int  ->  rdx         "Inlining Arg"
+;  V07 tmp4         [V07,T07] (  2,  4   )     int  ->  rax         "Inlining Arg"
 ;* V08 tmp5         [V08    ] (  0,  0   )  struct (16) zero-ref    "Inlining Arg" <System.Diagnostics.Tracing.PropertyValue+Scalar>
 ;* V09 tmp6         [V09    ] (  0,  0   )     ref  ->  zero-ref    single-def "V05.[000..008)"
 ;* V10 tmp7         [V10    ] (  0,  0   )     int  ->  zero-ref    "V05.[008..012)"
 ;* V11 tmp8         [V11    ] (  0,  0   )     int  ->  zero-ref    "V05.[016..020)"
 ;* V12 tmp9         [V12    ] (  0,  0   )     int  ->  zero-ref    "V06.[000..004)"
 ;* V13 tmp10        [V13    ] (  0,  0   )     int  ->  zero-ref    "V08.[000..004)"
 ;  V14 tmp11        [V14,T05] (  2,  4   )     ref  ->  rsi         single-def "argument with side effect"
 ;  V15 tmp12        [V15,T03] (  3,  6   )     ref  ->  r14         single-def "argument with side effect"
 ;  V16 rat0         [V16,T08] (  2,  3   )    long  ->  rdi         "Spilling to split statement for tree"
 ;  V17 rat1         [V17,T04] (  3,  4.50)     ref  ->  rsi         "Spilling to split statement for tree"
 ;  V18 rat2         [V18,T01] (  5,  7.50)     ref  ->  rax         "replacement local"
 ;  V19 rat3         [V19,T09] (  3,  2.50)    long  ->  rdi         "CSE for expectedClsNode"
 ;
 ; Lcl frame size = 40
 
 G_M37515_IG01:
        push     rbp
        push     r15
        push     r14
        push     rbx
        sub      rsp, 40
        lea      rbp, [rsp+0x40]
        vxorps   xmm8, xmm8, xmm8
        vmovdqu  ymmword ptr [rbp-0x40], ymm8
        mov      qword ptr [rbp-0x20], rdi
        mov      r15, rdi
        mov      rbx, rsi
 						;; size=35 bbWeight=1 PerfScore 8.58
 G_M37515_IG02:
        mov      r14, gword ptr [r15+0x08]
        mov      rdi, qword ptr [r15]
        mov      rdi, qword ptr [rdi+0x30]
        mov      rdi, qword ptr [rdi]
        mov      rdi, qword ptr [rdi]
        mov      rsi, gword ptr [rbp+0x10]
        mov      rax, rsi
        test     rax, rax
        je       SHORT G_M37515_IG05
 						;; size=29 bbWeight=1 PerfScore 12.50
 G_M37515_IG03:
        cmp      qword ptr [rax], rdi
        je       SHORT G_M37515_IG05
 						;; size=5 bbWeight=0.50 PerfScore 2.00
 G_M37515_IG04:
        mov      rax, 0xD1FFAB1E      ; code for CORINFO_HELP_CHKCASTANY
        call     [rax]CORINFO_HELP_CHKCASTANY
 						;; size=12 bbWeight=0.25 PerfScore 0.81
 G_M37515_IG05:
        mov      rsi, rax
        mov      rdi, gword ptr [r14+0x08]
        call     [r14+0x18]System.Func`2[System.__Canon,int]:Invoke(System.__Canon):int:this
-       mov      edx, eax
        vxorps   xmm0, xmm0, xmm0
        vmovdqu  xmmword ptr [rbp-0x30], xmm0
-       mov      rdi, rbx
-       lea      rsi, bword ptr [rbp-0x40]
-       call     CORINFO_HELP_ASSIGN_BYREF
-       movsq    
-       movsq    
-       movsq    
+						;; size=20 bbWeight=1 PerfScore 6.58
+G_M37515_IG06:
+       vmovdqu  ymm0, ymmword ptr [rbp-0x40]
+       vmovdqu  ymmword ptr [rbx], ymm0
+						;; size=9 bbWeight=1 PerfScore 6.00
+G_M37515_IG07:
        mov      dword ptr [rbx+0x08], 4
-       mov      dword ptr [rbx+0x10], edx
+       mov      dword ptr [rbx+0x10], eax
        mov      rax, rbx
-						;; size=53 bbWeight=1 PerfScore 13.83
-G_M37515_IG06:
+						;; size=13 bbWeight=1 PerfScore 2.25
+G_M37515_IG08:
+       vzeroupper 
        add      rsp, 40
        pop      rbx
        pop      r14
        pop      r15
        pop      rbp
        ret      
-						;; size=11 bbWeight=1 PerfScore 3.25
+						;; size=14 bbWeight=1 PerfScore 4.25
 
-; Total bytes of code 145, prolog size 29, PerfScore 40.98, instruction count 45, allocated bytes for code 145 (MethodHash=63a16d74) for method System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_8[System.__Canon]:<GetPropertyGetter>b__8(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
+; Total bytes of code 137, prolog size 29, PerfScore 42.98, instruction count 41, allocated bytes for code 137 (MethodHash=63a16d74) for method System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_8[System.__Canon]:<GetPropertyGetter>b__8(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)

-8 (-5.52 % of base) - System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_9[System.__Canon]:b__9(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this

 ; Assembly listing for method System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_9[System.__Canon]:<GetPropertyGetter>b__9(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue: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; 0 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 this         [V00,T02] (  4,  4   )     ref  ->  r15         this class-hnd single-def <System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_9[System.__Canon]>
 ;  V01 RetBuf       [V01,T00] (  6,  6   )   byref  ->  rbx         single-def
 ;  V02 arg1         [V02,T10] (  1,  1   )  struct (32) [rbp+0x10]  do-not-enreg[SF] ld-addr-op single-def <System.Diagnostics.Tracing.PropertyValue>
 ;# V03 OutArgs      [V03    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace"
 ;* V04 tmp1         [V04    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "impAppendStmt" <System.Func`2[System.__Canon,uint]>
 ;  V05 tmp2         [V05,T06] (  2,  4   )  struct (32) [rbp-0x40]  do-not-enreg[SF] must-init ld-addr-op "NewObj constructor temp" <System.Diagnostics.Tracing.PropertyValue>
 ;* V06 tmp3         [V06    ] (  0,  0   )  struct (16) zero-ref    do-not-enreg[SF] ld-addr-op "Inline ldloca(s) first use temp" <System.Diagnostics.Tracing.PropertyValue+Scalar>
-;  V07 tmp4         [V07,T07] (  2,  4   )     int  ->  rdx         "Inlining Arg"
+;  V07 tmp4         [V07,T07] (  2,  4   )     int  ->  rax         "Inlining Arg"
 ;* V08 tmp5         [V08    ] (  0,  0   )  struct (16) zero-ref    "Inlining Arg" <System.Diagnostics.Tracing.PropertyValue+Scalar>
 ;* V09 tmp6         [V09    ] (  0,  0   )     ref  ->  zero-ref    single-def "V05.[000..008)"
 ;* V10 tmp7         [V10    ] (  0,  0   )     int  ->  zero-ref    "V05.[008..012)"
 ;* V11 tmp8         [V11    ] (  0,  0   )     int  ->  zero-ref    "V05.[016..020)"
 ;* V12 tmp9         [V12    ] (  0,  0   )     int  ->  zero-ref    "V06.[000..004)"
 ;* V13 tmp10        [V13    ] (  0,  0   )     int  ->  zero-ref    "V08.[000..004)"
 ;  V14 tmp11        [V14,T05] (  2,  4   )     ref  ->  rsi         single-def "argument with side effect"
 ;  V15 tmp12        [V15,T03] (  3,  6   )     ref  ->  r14         single-def "argument with side effect"
 ;  V16 rat0         [V16,T08] (  2,  3   )    long  ->  rdi         "Spilling to split statement for tree"
 ;  V17 rat1         [V17,T04] (  3,  4.50)     ref  ->  rsi         "Spilling to split statement for tree"
 ;  V18 rat2         [V18,T01] (  5,  7.50)     ref  ->  rax         "replacement local"
 ;  V19 rat3         [V19,T09] (  3,  2.50)    long  ->  rdi         "CSE for expectedClsNode"
 ;
 ; Lcl frame size = 40
 
 G_M37259_IG01:
        push     rbp
        push     r15
        push     r14
        push     rbx
        sub      rsp, 40
        lea      rbp, [rsp+0x40]
        vxorps   xmm8, xmm8, xmm8
        vmovdqu  ymmword ptr [rbp-0x40], ymm8
        mov      qword ptr [rbp-0x20], rdi
        mov      r15, rdi
        mov      rbx, rsi
 						;; size=35 bbWeight=1 PerfScore 8.58
 G_M37259_IG02:
        mov      r14, gword ptr [r15+0x08]
        mov      rdi, qword ptr [r15]
        mov      rdi, qword ptr [rdi+0x30]
        mov      rdi, qword ptr [rdi]
        mov      rdi, qword ptr [rdi]
        mov      rsi, gword ptr [rbp+0x10]
        mov      rax, rsi
        test     rax, rax
        je       SHORT G_M37259_IG05
 						;; size=29 bbWeight=1 PerfScore 12.50
 G_M37259_IG03:
        cmp      qword ptr [rax], rdi
        je       SHORT G_M37259_IG05
 						;; size=5 bbWeight=0.50 PerfScore 2.00
 G_M37259_IG04:
        mov      rax, 0xD1FFAB1E      ; code for CORINFO_HELP_CHKCASTANY
        call     [rax]CORINFO_HELP_CHKCASTANY
 						;; size=12 bbWeight=0.25 PerfScore 0.81
 G_M37259_IG05:
        mov      rsi, rax
        mov      rdi, gword ptr [r14+0x08]
        call     [r14+0x18]System.Func`2[System.__Canon,uint]:Invoke(System.__Canon):uint:this
-       mov      edx, eax
        vxorps   xmm0, xmm0, xmm0
        vmovdqu  xmmword ptr [rbp-0x30], xmm0
-       mov      rdi, rbx
-       lea      rsi, bword ptr [rbp-0x40]
-       call     CORINFO_HELP_ASSIGN_BYREF
-       movsq    
-       movsq    
-       movsq    
+						;; size=20 bbWeight=1 PerfScore 6.58
+G_M37259_IG06:
+       vmovdqu  ymm0, ymmword ptr [rbp-0x40]
+       vmovdqu  ymmword ptr [rbx], ymm0
+						;; size=9 bbWeight=1 PerfScore 6.00
+G_M37259_IG07:
        mov      dword ptr [rbx+0x08], 4
-       mov      dword ptr [rbx+0x10], edx
+       mov      dword ptr [rbx+0x10], eax
        mov      rax, rbx
-						;; size=53 bbWeight=1 PerfScore 13.83
-G_M37259_IG06:
+						;; size=13 bbWeight=1 PerfScore 2.25
+G_M37259_IG08:
+       vzeroupper 
        add      rsp, 40
        pop      rbx
        pop      r14
        pop      r15
        pop      rbp
        ret      
-						;; size=11 bbWeight=1 PerfScore 3.25
+						;; size=14 bbWeight=1 PerfScore 4.25
 
-; Total bytes of code 145, prolog size 29, PerfScore 40.98, instruction count 45, allocated bytes for code 145 (MethodHash=5f2f6e74) for method System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_9[System.__Canon]:<GetPropertyGetter>b__9(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
+; Total bytes of code 137, prolog size 29, PerfScore 42.98, instruction count 41, allocated bytes for code 137 (MethodHash=5f2f6e74) for method System.Diagnostics.Tracing.PropertyValue+ReferenceTypeHelper`1+<>c__DisplayClass1_9[System.__Canon]:<GetPropertyGetter>b__9(System.Diagnostics.Tracing.PropertyValue):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)

-6 (-4.58 % of base) - System.Diagnostics.Tracing.PropertyValue+<>c:b__25_0(System.Object):System.Diagnostics.Tracing.PropertyValue:this

 ; Assembly listing for method System.Diagnostics.Tracing.PropertyValue+<>c:<GetFactory>b__25_0(System.Object):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
 ; Emitting BLENDED_CODE for X64 with AVX512 - Unix
 ; FullOpts code
 ; optimized code
 ; rsp based frame
 ; partially interruptible
 ; No PGO data
 ; 0 inlinees with PGO data; 2 single block inlinees; 0 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;* V00 this         [V00    ] (  0,  0   )     ref  ->  zero-ref    this class-hnd single-def <System.Diagnostics.Tracing.PropertyValue+<>c>
 ;  V01 RetBuf       [V01,T00] (  6,  6   )   byref  ->  rbx         single-def
 ;  V02 arg1         [V02,T01] (  5,  4.25)     ref  ->  r15         class-hnd single-def <System.Object>
 ;# V03 OutArgs      [V03    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace"
 ;  V04 tmp1         [V04,T02] (  2,  4   )  struct (32) [rsp+0x08]  do-not-enreg[SF] must-init ld-addr-op "NewObj constructor temp" <System.Diagnostics.Tracing.PropertyValue>
 ;* V05 tmp2         [V05    ] (  0,  0   )  struct (16) zero-ref    do-not-enreg[SF] ld-addr-op "Inline ldloca(s) first use temp" <System.Diagnostics.Tracing.PropertyValue+Scalar>
-;  V06 tmp3         [V06,T03] (  2,  4   )   ubyte  ->  rdx         "Inlining Arg"
+;  V06 tmp3         [V06,T03] (  2,  4   )   ubyte  ->  rax         "Inlining Arg"
 ;* V07 tmp4         [V07    ] (  0,  0   )  struct (16) zero-ref    "Inlining Arg" <System.Diagnostics.Tracing.PropertyValue+Scalar>
 ;* V08 tmp5         [V08    ] (  0,  0   )     ref  ->  zero-ref    single-def "V04.[000..008)"
 ;* V09 tmp6         [V09    ] (  0,  0   )     int  ->  zero-ref    "V04.[008..012)"
 ;* V10 tmp7         [V10    ] (  0,  0   )   ubyte  ->  zero-ref    "V04.[016..017)"
 ;* V11 tmp8         [V11    ] (  0,  0   )   ubyte  ->  zero-ref    "V05.[000..001)"
 ;* V12 tmp9         [V12    ] (  0,  0   )   ubyte  ->  zero-ref    "V07.[000..001)"
 ;
 ; Lcl frame size = 40
 
 G_M34457_IG01:
        push     r15
        push     rbx
        sub      rsp, 40
        xor      eax, eax
        mov      qword ptr [rsp+0x08], rax
        vxorps   xmm8, xmm8, xmm8
        vmovdqa  xmmword ptr [rsp+0x10], xmm8
        mov      qword ptr [rsp+0x20], rax
        mov      rbx, rsi
        mov      r15, rdx
 						;; size=36 bbWeight=1 PerfScore 7.33
 G_M34457_IG02:
        mov      rsi, 0xD1FFAB1E      ; System.Boolean
        cmp      qword ptr [r15], rsi
        je       SHORT G_M34457_IG04
 						;; size=15 bbWeight=1 PerfScore 4.25
 G_M34457_IG03:
        mov      rsi, r15
        mov      rdi, 0xD1FFAB1E      ; System.Boolean
        mov      rax, 0xD1FFAB1E      ; code for CORINFO_HELP_UNBOX
        call     [rax]CORINFO_HELP_UNBOX
 						;; size=25 bbWeight=0.25 PerfScore 0.94
 G_M34457_IG04:
-       movzx    rdx, byte  ptr [r15+0x08]
+       movzx    rax, byte  ptr [r15+0x08]
        vxorps   xmm0, xmm0, xmm0
        vmovdqu  xmmword ptr [rsp+0x18], xmm0
-       mov      rdi, rbx
-       lea      rsi, bword ptr [rsp+0x08]
-       call     CORINFO_HELP_ASSIGN_BYREF
-       movsq    
-       movsq    
-       movsq    
+						;; size=15 bbWeight=1 PerfScore 3.33
+G_M34457_IG05:
+       vmovdqu  ymm0, ymmword ptr [rsp+0x08]
+       vmovdqu  ymmword ptr [rbx], ymm0
+						;; size=10 bbWeight=1 PerfScore 6.00
+G_M34457_IG06:
        mov      dword ptr [rbx+0x08], 1
-       mov      byte  ptr [rbx+0x10], dl
+       mov      byte  ptr [rbx+0x10], al
        mov      rax, rbx
-						;; size=47 bbWeight=1 PerfScore 10.33
-G_M34457_IG05:
+						;; size=13 bbWeight=1 PerfScore 2.25
+G_M34457_IG07:
+       vzeroupper 
        add      rsp, 40
        pop      rbx
        pop      r15
        ret      
-						;; size=8 bbWeight=1 PerfScore 2.25
+						;; size=11 bbWeight=1 PerfScore 3.25
 
-; Total bytes of code 131, prolog size 30, PerfScore 25.10, instruction count 33, allocated bytes for code 131 (MethodHash=11407966) for method System.Diagnostics.Tracing.PropertyValue+<>c:<GetFactory>b__25_0(System.Object):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)
+; Total bytes of code 125, prolog size 30, PerfScore 27.35, instruction count 30, allocated bytes for code 125 (MethodHash=11407966) for method System.Diagnostics.Tracing.PropertyValue+<>c:<GetFactory>b__25_0(System.Object):System.Diagnostics.Tracing.PropertyValue:this (FullOpts)

Larger list of diffs: https://gist.github.com/MihuBot/e8f689f8738dd2aa72e9814415f85f70

[MihuBot]

@EgorBo