[JitDiff X64] [hez2010] JIT: Unify to instParamLookup and improve GVM test c ...

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Job completed in 18 minutes 10 seconds (remote runner delay: 1 minute 18 seconds).
dotnet/runtime#126947

Main commit: dotnet/runtime@f2c9dc4
PR commit: hez2010/runtime@ef634dc

Diffs

Diffs

Found 94 files with textual diffs.

Summary of Code Size diffs:
(Lower is better)

Total bytes of base: 46477370
Total bytes of diff: 46464089
Total bytes of delta: -13281 (-0.03 % of base)
Total relative delta: -91.14
    diff is an improvement.
    relative diff is an improvement.


Top file regressions (bytes):
          40 : Microsoft.CSharp.dasm (0.01 % of base)

Top file improvements (bytes):
       -2751 : System.Collections.Immutable.dasm (-0.12 % of base)
       -2735 : System.Collections.dasm (-0.38 % of base)
       -2484 : System.Net.Http.dasm (-0.27 % of base)
       -2484 : System.Net.NameResolution.dasm (-4.13 % of base)
       -1110 : System.Collections.Concurrent.dasm (-0.48 % of base)
        -595 : System.Linq.dasm (-0.04 % of base)
        -580 : System.Linq.Parallel.dasm (-0.03 % of base)
        -580 : System.Threading.Tasks.Dataflow.dasm (-0.04 % of base)
          -2 : System.Private.DataContractSerialization.dasm (-0.00 % of base)

10 total files with Code Size differences (9 improved, 1 regressed), 250 unchanged.

Top method regressions (bytes):
          40 (11.49 % of base) : Microsoft.CSharp.dasm - Microsoft.CSharp.RuntimeBinder.Semantics.MemberLookup:IsDynamicMember(Microsoft.CSharp.RuntimeBinder.Semantics.Symbol):bool (FullOpts)
           1 (0.81 % of base) : System.Collections.Immutable.dasm - System.Collections.Immutable.ImmutableArray`1[System.__Canon]:System.Collections.IStructuralEquatable.GetHashCode(System.Collections.IEqualityComparer):int:this (FullOpts)

Top method improvements (bytes):
        -127 (-44.88 % of base) : System.Collections.dasm - System.Collections.Generic.OrderedDictionary`2+KeyCollection[double,System.Nullable`1[int]]:System.Collections.Generic.IEnumerable<TKey>.GetEnumerator():System.Collections.Generic.IEnumerator`1[double]:this (FullOpts)
        -127 (-44.88 % of base) : System.Collections.dasm - System.Collections.Generic.OrderedDictionary`2+KeyCollection[long,System.Nullable`1[int]]:System.Collections.Generic.IEnumerable<TKey>.GetEnumerator():System.Collections.Generic.IEnumerator`1[long]:this (FullOpts)
        -127 (-49.03 % of base) : System.Collections.Immutable.dasm - System.Collections.Immutable.ImmutableQueue`1[byte]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[byte]:this (FullOpts)
        -127 (-49.03 % of base) : System.Collections.Immutable.dasm - System.Collections.Immutable.ImmutableQueue`1[double]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[double]:this (FullOpts)
        -127 (-49.03 % of base) : System.Collections.Immutable.dasm - System.Collections.Immutable.ImmutableQueue`1[long]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[long]:this (FullOpts)
        -127 (-49.03 % of base) : System.Collections.Immutable.dasm - System.Collections.Immutable.ImmutableQueue`1[short]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[short]:this (FullOpts)
        -127 (-49.80 % of base) : System.Collections.Immutable.dasm - System.Collections.Immutable.ImmutableStack`1[byte]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[byte]:this (FullOpts)
        -127 (-49.80 % of base) : System.Collections.Immutable.dasm - System.Collections.Immutable.ImmutableStack`1[double]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[double]:this (FullOpts)
        -127 (-49.80 % of base) : System.Collections.Immutable.dasm - System.Collections.Immutable.ImmutableStack`1[long]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[long]:this (FullOpts)
        -127 (-49.80 % of base) : System.Collections.Immutable.dasm - System.Collections.Immutable.ImmutableStack`1[short]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[short]:this (FullOpts)
        -121 (-38.41 % of base) : System.Collections.dasm - System.Collections.Generic.OrderedDictionary`2+KeyCollection[byte,System.Nullable`1[int]]:System.Collections.Generic.IEnumerable<TKey>.GetEnumerator():System.Collections.Generic.IEnumerator`1[byte]:this (FullOpts)
        -121 (-38.41 % of base) : System.Collections.dasm - System.Collections.Generic.OrderedDictionary`2+KeyCollection[short,System.Nullable`1[int]]:System.Collections.Generic.IEnumerable<TKey>.GetEnumerator():System.Collections.Generic.IEnumerator`1[short]:this (FullOpts)
        -120 (-45.80 % of base) : System.Collections.dasm - System.Collections.Generic.SortedList`2+KeyList[byte,System.Nullable`1[int]]:GetEnumerator():System.Collections.Generic.IEnumerator`1[byte]:this (FullOpts)
        -120 (-45.80 % of base) : System.Collections.dasm - System.Collections.Generic.SortedList`2+KeyList[double,System.Nullable`1[int]]:GetEnumerator():System.Collections.Generic.IEnumerator`1[double]:this (FullOpts)
        -120 (-45.80 % of base) : System.Collections.dasm - System.Collections.Generic.SortedList`2+KeyList[long,System.Nullable`1[int]]:GetEnumerator():System.Collections.Generic.IEnumerator`1[long]:this (FullOpts)
        -120 (-45.80 % of base) : System.Collections.dasm - System.Collections.Generic.SortedList`2+KeyList[short,System.Nullable`1[int]]:GetEnumerator():System.Collections.Generic.IEnumerator`1[short]:this (FullOpts)
        -119 (-28.33 % of base) : System.Linq.dasm - System.Linq.Enumerable+AppendPrependN`1[byte]:MoveNext():bool:this (FullOpts)
        -119 (-28.07 % of base) : System.Linq.dasm - System.Linq.Enumerable+AppendPrependN`1[double]:MoveNext():bool:this (FullOpts)
        -119 (-28.40 % of base) : System.Linq.dasm - System.Linq.Enumerable+AppendPrependN`1[int]:MoveNext():bool:this (FullOpts)
        -119 (-28.27 % of base) : System.Linq.dasm - System.Linq.Enumerable+AppendPrependN`1[long]:MoveNext():bool:this (FullOpts)
        -119 (-28.20 % of base) : System.Linq.dasm - System.Linq.Enumerable+AppendPrependN`1[short]:MoveNext():bool:this (FullOpts)
        -117 (-86.03 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[byte]:System.Collections.ICollection.CopyTo(System.Array,int):this (FullOpts)
        -117 (-86.03 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[byte]:System.Collections.ICollection.CopyTo(System.Array,int):this (FullOpts)
        -117 (-86.03 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[double]:System.Collections.ICollection.CopyTo(System.Array,int):this (FullOpts)
        -117 (-86.03 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[double]:System.Collections.ICollection.CopyTo(System.Array,int):this (FullOpts)
        -117 (-86.03 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[int]:System.Collections.ICollection.CopyTo(System.Array,int):this (FullOpts)
        -117 (-86.03 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[int]:System.Collections.ICollection.CopyTo(System.Array,int):this (FullOpts)
        -117 (-86.03 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[long]:System.Collections.ICollection.CopyTo(System.Array,int):this (FullOpts)
        -117 (-86.03 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[long]:System.Collections.ICollection.CopyTo(System.Array,int):this (FullOpts)
        -117 (-86.03 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[short]:System.Collections.ICollection.CopyTo(System.Array,int):this (FullOpts)
        -117 (-86.03 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[short]:System.Collections.ICollection.CopyTo(System.Array,int):this (FullOpts)
        -117 (-86.03 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[System.__Canon]:System.Collections.ICollection.CopyTo(System.Array,int):this (FullOpts)
        -117 (-86.03 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[System.__Canon]:System.Collections.ICollection.CopyTo(System.Array,int):this (FullOpts)
        -116 (-85.93 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[byte]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[byte]:this (FullOpts)
        -116 (-85.93 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[byte]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[byte]:this (FullOpts)
        -116 (-85.93 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[double]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[double]:this (FullOpts)
        -116 (-85.93 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[double]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[double]:this (FullOpts)
        -116 (-85.93 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[int]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[int]:this (FullOpts)
        -116 (-85.93 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[int]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[int]:this (FullOpts)
        -116 (-85.93 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[long]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[long]:this (FullOpts)
        -116 (-85.93 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[long]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[long]:this (FullOpts)
        -116 (-85.93 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[short]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[short]:this (FullOpts)
        -116 (-85.93 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[short]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[short]:this (FullOpts)
        -116 (-35.80 % of base) : System.Collections.Immutable.dasm - System.Collections.Immutable.ImmutableSortedSet`1[byte]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[byte]:this (FullOpts)
        -116 (-35.80 % of base) : System.Collections.Immutable.dasm - System.Collections.Immutable.ImmutableSortedSet`1[double]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[double]:this (FullOpts)
        -116 (-35.80 % of base) : System.Collections.Immutable.dasm - System.Collections.Immutable.ImmutableSortedSet`1[long]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[long]:this (FullOpts)
        -116 (-35.80 % of base) : System.Collections.Immutable.dasm - System.Collections.Immutable.ImmutableSortedSet`1[short]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[short]:this (FullOpts)
        -116 (-85.93 % of base) : System.Linq.Parallel.dasm - System.Linq.Parallel.ArrayMergeHelper`1[byte]:GetEnumerator():System.Collections.Generic.IEnumerator`1[byte]:this (FullOpts)
        -116 (-85.93 % of base) : System.Linq.Parallel.dasm - System.Linq.Parallel.ArrayMergeHelper`1[double]:GetEnumerator():System.Collections.Generic.IEnumerator`1[double]:this (FullOpts)
        -116 (-85.93 % of base) : System.Linq.Parallel.dasm - System.Linq.Parallel.ArrayMergeHelper`1[int]:GetEnumerator():System.Collections.Generic.IEnumerator`1[int]:this (FullOpts)
        -116 (-85.93 % of base) : System.Linq.Parallel.dasm - System.Linq.Parallel.ArrayMergeHelper`1[long]:GetEnumerator():System.Collections.Generic.IEnumerator`1[long]:this (FullOpts)
        -116 (-85.93 % of base) : System.Linq.Parallel.dasm - System.Linq.Parallel.ArrayMergeHelper`1[short]:GetEnumerator():System.Collections.Generic.IEnumerator`1[short]:this (FullOpts)
        -116 (-86.57 % of base) : System.Threading.Tasks.Dataflow.dasm - System.Threading.Tasks.Dataflow.Internal.ImmutableArray`1[byte]:GetEnumerator():System.Collections.Generic.IEnumerator`1[byte]:this (FullOpts)
        -116 (-86.57 % of base) : System.Threading.Tasks.Dataflow.dasm - System.Threading.Tasks.Dataflow.Internal.ImmutableArray`1[double]:GetEnumerator():System.Collections.Generic.IEnumerator`1[double]:this (FullOpts)
        -116 (-86.57 % of base) : System.Threading.Tasks.Dataflow.dasm - System.Threading.Tasks.Dataflow.Internal.ImmutableArray`1[int]:GetEnumerator():System.Collections.Generic.IEnumerator`1[int]:this (FullOpts)
        -116 (-86.57 % of base) : System.Threading.Tasks.Dataflow.dasm - System.Threading.Tasks.Dataflow.Internal.ImmutableArray`1[long]:GetEnumerator():System.Collections.Generic.IEnumerator`1[long]:this (FullOpts)
        -116 (-86.57 % of base) : System.Threading.Tasks.Dataflow.dasm - System.Threading.Tasks.Dataflow.Internal.ImmutableArray`1[short]:GetEnumerator():System.Collections.Generic.IEnumerator`1[short]:this (FullOpts)
        -114 (-61.29 % of base) : System.Collections.dasm - System.Collections.Generic.EnumerableHelpers:GetEmptyEnumerator[byte]():System.Collections.Generic.IEnumerator`1[byte] (FullOpts)
        -114 (-61.29 % of base) : System.Collections.dasm - System.Collections.Generic.EnumerableHelpers:GetEmptyEnumerator[double]():System.Collections.Generic.IEnumerator`1[double] (FullOpts)
        -114 (-61.29 % of base) : System.Collections.dasm - System.Collections.Generic.EnumerableHelpers:GetEmptyEnumerator[long]():System.Collections.Generic.IEnumerator`1[long] (FullOpts)
        -114 (-61.29 % of base) : System.Collections.dasm - System.Collections.Generic.EnumerableHelpers:GetEmptyEnumerator[short]():System.Collections.Generic.IEnumerator`1[short] (FullOpts)
        -112 (-41.33 % of base) : System.Collections.dasm - System.Collections.Generic.Stack`1[byte]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[byte]:this (FullOpts)
        -112 (-41.18 % of base) : System.Collections.dasm - System.Collections.Generic.Stack`1[long]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[long]:this (FullOpts)
        -112 (-41.03 % of base) : System.Collections.dasm - System.Collections.Generic.Stack`1[short]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[short]:this (FullOpts)
        -111 (-76.03 % of base) : System.Collections.Concurrent.dasm - System.Collections.Concurrent.ConcurrentBag`1[byte]:GetEnumerator():System.Collections.Generic.IEnumerator`1[byte]:this (FullOpts)
        -111 (-76.03 % of base) : System.Collections.Concurrent.dasm - System.Collections.Concurrent.ConcurrentBag`1[byte]:System.Collections.IEnumerable.GetEnumerator():System.Collections.IEnumerator:this (FullOpts)
        -111 (-76.03 % of base) : System.Collections.Concurrent.dasm - System.Collections.Concurrent.ConcurrentBag`1[double]:GetEnumerator():System.Collections.Generic.IEnumerator`1[double]:this (FullOpts)
        -111 (-76.03 % of base) : System.Collections.Concurrent.dasm - System.Collections.Concurrent.ConcurrentBag`1[double]:System.Collections.IEnumerable.GetEnumerator():System.Collections.IEnumerator:this (FullOpts)
        -111 (-76.03 % of base) : System.Collections.Concurrent.dasm - System.Collections.Concurrent.ConcurrentBag`1[int]:GetEnumerator():System.Collections.Generic.IEnumerator`1[int]:this (FullOpts)
        -111 (-76.03 % of base) : System.Collections.Concurrent.dasm - System.Collections.Concurrent.ConcurrentBag`1[int]:System.Collections.IEnumerable.GetEnumerator():System.Collections.IEnumerator:this (FullOpts)
        -111 (-76.03 % of base) : System.Collections.Concurrent.dasm - System.Collections.Concurrent.ConcurrentBag`1[long]:GetEnumerator():System.Collections.Generic.IEnumerator`1[long]:this (FullOpts)
        -111 (-76.03 % of base) : System.Collections.Concurrent.dasm - System.Collections.Concurrent.ConcurrentBag`1[long]:System.Collections.IEnumerable.GetEnumerator():System.Collections.IEnumerator:this (FullOpts)
        -111 (-76.03 % of base) : System.Collections.Concurrent.dasm - System.Collections.Concurrent.ConcurrentBag`1[short]:GetEnumerator():System.Collections.Generic.IEnumerator`1[short]:this (FullOpts)
        -111 (-76.03 % of base) : System.Collections.Concurrent.dasm - System.Collections.Concurrent.ConcurrentBag`1[short]:System.Collections.IEnumerable.GetEnumerator():System.Collections.IEnumerator:this (FullOpts)
        -111 (-40.81 % of base) : System.Collections.dasm - System.Collections.Generic.Stack`1[double]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[double]:this (FullOpts)
        -109 (-38.11 % of base) : System.Collections.dasm - System.Collections.Generic.LinkedList`1[byte]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[byte]:this (FullOpts)
        -109 (-38.25 % of base) : System.Collections.dasm - System.Collections.Generic.LinkedList`1[double]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[double]:this (FullOpts)
        -109 (-38.25 % of base) : System.Collections.dasm - System.Collections.Generic.LinkedList`1[long]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[long]:this (FullOpts)
        -109 (-37.85 % of base) : System.Collections.dasm - System.Collections.Generic.LinkedList`1[short]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[short]:this (FullOpts)
        -107 (-32.04 % of base) : System.Collections.Immutable.dasm - System.Collections.Immutable.ImmutableList`1[byte]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[byte]:this (FullOpts)
        -107 (-32.04 % of base) : System.Collections.Immutable.dasm - System.Collections.Immutable.ImmutableList`1[double]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[double]:this (FullOpts)
        -107 (-32.04 % of base) : System.Collections.Immutable.dasm - System.Collections.Immutable.ImmutableList`1[long]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[long]:this (FullOpts)
        -107 (-32.04 % of base) : System.Collections.Immutable.dasm - System.Collections.Immutable.ImmutableList`1[short]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[short]:this (FullOpts)
        -106 (-37.19 % of base) : System.Collections.Immutable.dasm - System.Collections.Frozen.FrozenSet`1[byte]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[byte]:this (FullOpts)
        -106 (-37.19 % of base) : System.Collections.Immutable.dasm - System.Collections.Frozen.FrozenSet`1[double]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[double]:this (FullOpts)
        -106 (-37.19 % of base) : System.Collections.Immutable.dasm - System.Collections.Frozen.FrozenSet`1[long]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[long]:this (FullOpts)
        -106 (-37.19 % of base) : System.Collections.Immutable.dasm - System.Collections.Frozen.FrozenSet`1[short]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[short]:this (FullOpts)
        -105 (-25.00 % of base) : System.Collections.dasm - System.Collections.Generic.SortedDictionary`2+KeyCollection[byte,System.Nullable`1[int]]:System.Collections.Generic.IEnumerable<TKey>.GetEnumerator():System.Collections.Generic.IEnumerator`1[byte]:this (FullOpts)
        -105 (-25.00 % of base) : System.Collections.dasm - System.Collections.Generic.SortedDictionary`2+KeyCollection[double,System.Nullable`1[int]]:System.Collections.Generic.IEnumerable<TKey>.GetEnumerator():System.Collections.Generic.IEnumerator`1[double]:this (FullOpts)
        -105 (-25.00 % of base) : System.Collections.dasm - System.Collections.Generic.SortedDictionary`2+KeyCollection[long,System.Nullable`1[int]]:System.Collections.Generic.IEnumerable<TKey>.GetEnumerator():System.Collections.Generic.IEnumerator`1[long]:this (FullOpts)
        -105 (-25.00 % of base) : System.Collections.dasm - System.Collections.Generic.SortedDictionary`2+KeyCollection[short,System.Nullable`1[int]]:System.Collections.Generic.IEnumerable<TKey>.GetEnumerator():System.Collections.Generic.IEnumerator`1[short]:this (FullOpts)
        -105 (-15.58 % of base) : System.Collections.Immutable.dasm - System.Collections.Immutable.ImmutableHashSet`1[byte]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[byte]:this (FullOpts)
        -105 (-15.58 % of base) : System.Collections.Immutable.dasm - System.Collections.Immutable.ImmutableHashSet`1[double]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[double]:this (FullOpts)
        -105 (-15.58 % of base) : System.Collections.Immutable.dasm - System.Collections.Immutable.ImmutableHashSet`1[long]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[long]:this (FullOpts)
        -105 (-15.58 % of base) : System.Collections.Immutable.dasm - System.Collections.Immutable.ImmutableHashSet`1[short]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[short]:this (FullOpts)
         -83 (-81.37 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[byte]:System.Collections.IList.Contains(System.Object):bool:this (FullOpts)
         -83 (-81.37 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[byte]:System.Collections.IList.Contains(System.Object):bool:this (FullOpts)
         -83 (-81.37 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[double]:System.Collections.IList.Contains(System.Object):bool:this (FullOpts)
         -83 (-81.37 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[double]:System.Collections.IList.Contains(System.Object):bool:this (FullOpts)
         -83 (-81.37 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[int]:System.Collections.IList.Contains(System.Object):bool:this (FullOpts)

Top method regressions (percentages):
          40 (11.49 % of base) : Microsoft.CSharp.dasm - Microsoft.CSharp.RuntimeBinder.Semantics.MemberLookup:IsDynamicMember(Microsoft.CSharp.RuntimeBinder.Semantics.Symbol):bool (FullOpts)
           1 (0.81 % of base) : System.Collections.Immutable.dasm - System.Collections.Immutable.ImmutableArray`1[System.__Canon]:System.Collections.IStructuralEquatable.GetHashCode(System.Collections.IEqualityComparer):int:this (FullOpts)

Top method improvements (percentages):
        -116 (-86.57 % of base) : System.Threading.Tasks.Dataflow.dasm - System.Threading.Tasks.Dataflow.Internal.ImmutableArray`1[byte]:GetEnumerator():System.Collections.Generic.IEnumerator`1[byte]:this (FullOpts)
        -116 (-86.57 % of base) : System.Threading.Tasks.Dataflow.dasm - System.Threading.Tasks.Dataflow.Internal.ImmutableArray`1[double]:GetEnumerator():System.Collections.Generic.IEnumerator`1[double]:this (FullOpts)
        -116 (-86.57 % of base) : System.Threading.Tasks.Dataflow.dasm - System.Threading.Tasks.Dataflow.Internal.ImmutableArray`1[int]:GetEnumerator():System.Collections.Generic.IEnumerator`1[int]:this (FullOpts)
        -116 (-86.57 % of base) : System.Threading.Tasks.Dataflow.dasm - System.Threading.Tasks.Dataflow.Internal.ImmutableArray`1[long]:GetEnumerator():System.Collections.Generic.IEnumerator`1[long]:this (FullOpts)
        -116 (-86.57 % of base) : System.Threading.Tasks.Dataflow.dasm - System.Threading.Tasks.Dataflow.Internal.ImmutableArray`1[short]:GetEnumerator():System.Collections.Generic.IEnumerator`1[short]:this (FullOpts)
        -117 (-86.03 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[byte]:System.Collections.ICollection.CopyTo(System.Array,int):this (FullOpts)
        -117 (-86.03 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[byte]:System.Collections.ICollection.CopyTo(System.Array,int):this (FullOpts)
        -117 (-86.03 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[double]:System.Collections.ICollection.CopyTo(System.Array,int):this (FullOpts)
        -117 (-86.03 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[double]:System.Collections.ICollection.CopyTo(System.Array,int):this (FullOpts)
        -117 (-86.03 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[int]:System.Collections.ICollection.CopyTo(System.Array,int):this (FullOpts)
        -117 (-86.03 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[int]:System.Collections.ICollection.CopyTo(System.Array,int):this (FullOpts)
        -117 (-86.03 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[long]:System.Collections.ICollection.CopyTo(System.Array,int):this (FullOpts)
        -117 (-86.03 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[long]:System.Collections.ICollection.CopyTo(System.Array,int):this (FullOpts)
        -117 (-86.03 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[short]:System.Collections.ICollection.CopyTo(System.Array,int):this (FullOpts)
        -117 (-86.03 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[short]:System.Collections.ICollection.CopyTo(System.Array,int):this (FullOpts)
        -117 (-86.03 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[System.__Canon]:System.Collections.ICollection.CopyTo(System.Array,int):this (FullOpts)
        -117 (-86.03 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[System.__Canon]:System.Collections.ICollection.CopyTo(System.Array,int):this (FullOpts)
        -116 (-85.93 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[byte]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[byte]:this (FullOpts)
        -116 (-85.93 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[byte]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[byte]:this (FullOpts)
        -116 (-85.93 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[double]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[double]:this (FullOpts)
        -116 (-85.93 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[double]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[double]:this (FullOpts)
        -116 (-85.93 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[int]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[int]:this (FullOpts)
        -116 (-85.93 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[int]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[int]:this (FullOpts)
        -116 (-85.93 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[long]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[long]:this (FullOpts)
        -116 (-85.93 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[long]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[long]:this (FullOpts)
        -116 (-85.93 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[short]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[short]:this (FullOpts)
        -116 (-85.93 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[short]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[short]:this (FullOpts)
        -116 (-85.93 % of base) : System.Linq.Parallel.dasm - System.Linq.Parallel.ArrayMergeHelper`1[byte]:GetEnumerator():System.Collections.Generic.IEnumerator`1[byte]:this (FullOpts)
        -116 (-85.93 % of base) : System.Linq.Parallel.dasm - System.Linq.Parallel.ArrayMergeHelper`1[double]:GetEnumerator():System.Collections.Generic.IEnumerator`1[double]:this (FullOpts)
        -116 (-85.93 % of base) : System.Linq.Parallel.dasm - System.Linq.Parallel.ArrayMergeHelper`1[int]:GetEnumerator():System.Collections.Generic.IEnumerator`1[int]:this (FullOpts)
        -116 (-85.93 % of base) : System.Linq.Parallel.dasm - System.Linq.Parallel.ArrayMergeHelper`1[long]:GetEnumerator():System.Collections.Generic.IEnumerator`1[long]:this (FullOpts)
        -116 (-85.93 % of base) : System.Linq.Parallel.dasm - System.Linq.Parallel.ArrayMergeHelper`1[short]:GetEnumerator():System.Collections.Generic.IEnumerator`1[short]:this (FullOpts)
         -83 (-81.37 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[byte]:System.Collections.IList.Contains(System.Object):bool:this (FullOpts)
         -83 (-81.37 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[byte]:System.Collections.IList.Contains(System.Object):bool:this (FullOpts)
         -83 (-81.37 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[double]:System.Collections.IList.Contains(System.Object):bool:this (FullOpts)
         -83 (-81.37 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[double]:System.Collections.IList.Contains(System.Object):bool:this (FullOpts)
         -83 (-81.37 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[int]:System.Collections.IList.Contains(System.Object):bool:this (FullOpts)
         -83 (-81.37 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[int]:System.Collections.IList.Contains(System.Object):bool:this (FullOpts)
         -83 (-81.37 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[long]:System.Collections.IList.Contains(System.Object):bool:this (FullOpts)
         -83 (-81.37 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[long]:System.Collections.IList.Contains(System.Object):bool:this (FullOpts)
         -83 (-81.37 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[short]:System.Collections.IList.Contains(System.Object):bool:this (FullOpts)
         -83 (-81.37 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[short]:System.Collections.IList.Contains(System.Object):bool:this (FullOpts)
         -83 (-81.37 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[System.__Canon]:System.Collections.IList.Contains(System.Object):bool:this (FullOpts)
         -83 (-81.37 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[System.__Canon]:System.Collections.IList.Contains(System.Object):bool:this (FullOpts)
        -111 (-76.03 % of base) : System.Collections.Concurrent.dasm - System.Collections.Concurrent.ConcurrentBag`1[byte]:GetEnumerator():System.Collections.Generic.IEnumerator`1[byte]:this (FullOpts)
        -111 (-76.03 % of base) : System.Collections.Concurrent.dasm - System.Collections.Concurrent.ConcurrentBag`1[byte]:System.Collections.IEnumerable.GetEnumerator():System.Collections.IEnumerator:this (FullOpts)
        -111 (-76.03 % of base) : System.Collections.Concurrent.dasm - System.Collections.Concurrent.ConcurrentBag`1[double]:GetEnumerator():System.Collections.Generic.IEnumerator`1[double]:this (FullOpts)
        -111 (-76.03 % of base) : System.Collections.Concurrent.dasm - System.Collections.Concurrent.ConcurrentBag`1[double]:System.Collections.IEnumerable.GetEnumerator():System.Collections.IEnumerator:this (FullOpts)
        -111 (-76.03 % of base) : System.Collections.Concurrent.dasm - System.Collections.Concurrent.ConcurrentBag`1[int]:GetEnumerator():System.Collections.Generic.IEnumerator`1[int]:this (FullOpts)
        -111 (-76.03 % of base) : System.Collections.Concurrent.dasm - System.Collections.Concurrent.ConcurrentBag`1[int]:System.Collections.IEnumerable.GetEnumerator():System.Collections.IEnumerator:this (FullOpts)
        -111 (-76.03 % of base) : System.Collections.Concurrent.dasm - System.Collections.Concurrent.ConcurrentBag`1[long]:GetEnumerator():System.Collections.Generic.IEnumerator`1[long]:this (FullOpts)
        -111 (-76.03 % of base) : System.Collections.Concurrent.dasm - System.Collections.Concurrent.ConcurrentBag`1[long]:System.Collections.IEnumerable.GetEnumerator():System.Collections.IEnumerator:this (FullOpts)
        -111 (-76.03 % of base) : System.Collections.Concurrent.dasm - System.Collections.Concurrent.ConcurrentBag`1[short]:GetEnumerator():System.Collections.Generic.IEnumerator`1[short]:this (FullOpts)
        -111 (-76.03 % of base) : System.Collections.Concurrent.dasm - System.Collections.Concurrent.ConcurrentBag`1[short]:System.Collections.IEnumerable.GetEnumerator():System.Collections.IEnumerator:this (FullOpts)
         -54 (-73.97 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[byte]:System.Collections.IList.IndexOf(System.Object):int:this (FullOpts)
         -54 (-73.97 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[byte]:System.Collections.IList.IndexOf(System.Object):int:this (FullOpts)
         -54 (-73.97 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[double]:System.Collections.IList.IndexOf(System.Object):int:this (FullOpts)
         -54 (-73.97 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[double]:System.Collections.IList.IndexOf(System.Object):int:this (FullOpts)
         -54 (-73.97 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[int]:System.Collections.IList.IndexOf(System.Object):int:this (FullOpts)
         -54 (-73.97 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[int]:System.Collections.IList.IndexOf(System.Object):int:this (FullOpts)
         -54 (-73.97 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[long]:System.Collections.IList.IndexOf(System.Object):int:this (FullOpts)
         -54 (-73.97 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[long]:System.Collections.IList.IndexOf(System.Object):int:this (FullOpts)
         -54 (-73.97 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[short]:System.Collections.IList.IndexOf(System.Object):int:this (FullOpts)
         -54 (-73.97 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[short]:System.Collections.IList.IndexOf(System.Object):int:this (FullOpts)
         -54 (-73.97 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[System.__Canon]:System.Collections.IList.IndexOf(System.Object):int:this (FullOpts)
         -54 (-73.97 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[System.__Canon]:System.Collections.IList.IndexOf(System.Object):int:this (FullOpts)
         -40 (-67.80 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[byte]:System.Collections.IEnumerable.GetEnumerator():System.Collections.IEnumerator:this (FullOpts)
         -40 (-67.80 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[byte]:System.Collections.IEnumerable.GetEnumerator():System.Collections.IEnumerator:this (FullOpts)
         -40 (-67.80 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[double]:System.Collections.IEnumerable.GetEnumerator():System.Collections.IEnumerator:this (FullOpts)
         -40 (-67.80 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[double]:System.Collections.IEnumerable.GetEnumerator():System.Collections.IEnumerator:this (FullOpts)
         -40 (-67.80 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[int]:System.Collections.IEnumerable.GetEnumerator():System.Collections.IEnumerator:this (FullOpts)
         -40 (-67.80 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[int]:System.Collections.IEnumerable.GetEnumerator():System.Collections.IEnumerator:this (FullOpts)
         -40 (-67.80 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[long]:System.Collections.IEnumerable.GetEnumerator():System.Collections.IEnumerator:this (FullOpts)
         -40 (-67.80 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[long]:System.Collections.IEnumerable.GetEnumerator():System.Collections.IEnumerator:this (FullOpts)
         -40 (-67.80 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[short]:System.Collections.IEnumerable.GetEnumerator():System.Collections.IEnumerator:this (FullOpts)
         -40 (-67.80 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[short]:System.Collections.IEnumerable.GetEnumerator():System.Collections.IEnumerator:this (FullOpts)
         -40 (-67.80 % of base) : System.Net.Http.dasm - <>z__ReadOnlyArray`1[System.__Canon]:System.Collections.IEnumerable.GetEnumerator():System.Collections.IEnumerator:this (FullOpts)
         -40 (-67.80 % of base) : System.Net.NameResolution.dasm - <>z__ReadOnlyArray`1[System.__Canon]:System.Collections.IEnumerable.GetEnumerator():System.Collections.IEnumerator:this (FullOpts)
        -114 (-61.29 % of base) : System.Collections.dasm - System.Collections.Generic.EnumerableHelpers:GetEmptyEnumerator[byte]():System.Collections.Generic.IEnumerator`1[byte] (FullOpts)
        -114 (-61.29 % of base) : System.Collections.dasm - System.Collections.Generic.EnumerableHelpers:GetEmptyEnumerator[double]():System.Collections.Generic.IEnumerator`1[double] (FullOpts)
        -114 (-61.29 % of base) : System.Collections.dasm - System.Collections.Generic.EnumerableHelpers:GetEmptyEnumerator[long]():System.Collections.Generic.IEnumerator`1[long] (FullOpts)
        -114 (-61.29 % of base) : System.Collections.dasm - System.Collections.Generic.EnumerableHelpers:GetEmptyEnumerator[short]():System.Collections.Generic.IEnumerator`1[short] (FullOpts)
        -127 (-49.80 % of base) : System.Collections.Immutable.dasm - System.Collections.Immutable.ImmutableStack`1[byte]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[byte]:this (FullOpts)
        -127 (-49.80 % of base) : System.Collections.Immutable.dasm - System.Collections.Immutable.ImmutableStack`1[double]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[double]:this (FullOpts)
        -127 (-49.80 % of base) : System.Collections.Immutable.dasm - System.Collections.Immutable.ImmutableStack`1[long]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[long]:this (FullOpts)
        -127 (-49.80 % of base) : System.Collections.Immutable.dasm - System.Collections.Immutable.ImmutableStack`1[short]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[short]:this (FullOpts)
        -127 (-49.03 % of base) : System.Collections.Immutable.dasm - System.Collections.Immutable.ImmutableQueue`1[byte]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[byte]:this (FullOpts)
        -127 (-49.03 % of base) : System.Collections.Immutable.dasm - System.Collections.Immutable.ImmutableQueue`1[double]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[double]:this (FullOpts)
        -127 (-49.03 % of base) : System.Collections.Immutable.dasm - System.Collections.Immutable.ImmutableQueue`1[long]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[long]:this (FullOpts)
        -127 (-49.03 % of base) : System.Collections.Immutable.dasm - System.Collections.Immutable.ImmutableQueue`1[short]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[short]:this (FullOpts)
        -120 (-45.80 % of base) : System.Collections.dasm - System.Collections.Generic.SortedList`2+KeyList[byte,System.Nullable`1[int]]:GetEnumerator():System.Collections.Generic.IEnumerator`1[byte]:this (FullOpts)
        -120 (-45.80 % of base) : System.Collections.dasm - System.Collections.Generic.SortedList`2+KeyList[double,System.Nullable`1[int]]:GetEnumerator():System.Collections.Generic.IEnumerator`1[double]:this (FullOpts)
        -120 (-45.80 % of base) : System.Collections.dasm - System.Collections.Generic.SortedList`2+KeyList[long,System.Nullable`1[int]]:GetEnumerator():System.Collections.Generic.IEnumerator`1[long]:this (FullOpts)
        -120 (-45.80 % of base) : System.Collections.dasm - System.Collections.Generic.SortedList`2+KeyList[short,System.Nullable`1[int]]:GetEnumerator():System.Collections.Generic.IEnumerator`1[short]:this (FullOpts)
        -127 (-44.88 % of base) : System.Collections.dasm - System.Collections.Generic.OrderedDictionary`2+KeyCollection[double,System.Nullable`1[int]]:System.Collections.Generic.IEnumerable<TKey>.GetEnumerator():System.Collections.Generic.IEnumerator`1[double]:this (FullOpts)
        -127 (-44.88 % of base) : System.Collections.dasm - System.Collections.Generic.OrderedDictionary`2+KeyCollection[long,System.Nullable`1[int]]:System.Collections.Generic.IEnumerable<TKey>.GetEnumerator():System.Collections.Generic.IEnumerator`1[long]:this (FullOpts)
        -112 (-41.33 % of base) : System.Collections.dasm - System.Collections.Generic.Stack`1[byte]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[byte]:this (FullOpts)
        -112 (-41.18 % of base) : System.Collections.dasm - System.Collections.Generic.Stack`1[long]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[long]:this (FullOpts)
        -112 (-41.03 % of base) : System.Collections.dasm - System.Collections.Generic.Stack`1[short]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[short]:this (FullOpts)
        -111 (-40.81 % of base) : System.Collections.dasm - System.Collections.Generic.Stack`1[double]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[double]:this (FullOpts)

165 total methods with Code Size differences (163 improved, 2 regressed), 288282 unchanged.

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

Artifacts:

• jit-diffs-main.zip (159 MB)
• jit-diffs-pr.zip (159 MB)
• diff-frameworks.txt (41 KB)
• ShortDiffsRegressions.md (17 KB)
• LongDiffsImprovements.md (167 KB)
• ShortDiffsImprovements.md (54 KB)

[MihuBot]

Top method regressions

40 (11.49 % of base) - Microsoft.CSharp.RuntimeBinder.Semantics.MemberLookup:IsDynamicMember(Microsoft.CSharp.RuntimeBinder.Semantics.Symbol):bool

 ; Assembly listing for method Microsoft.CSharp.RuntimeBinder.Semantics.MemberLookup:IsDynamicMember(Microsoft.CSharp.RuntimeBinder.Semantics.Symbol):bool (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
 ; rbp based frame
 ; partially interruptible
 ; No PGO data
-; 0 inlinees with PGO data; 6 single block inlinees; 1 inlinees without PGO data
+; 0 inlinees with PGO data; 4 single block inlinees; 0 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 arg0         [V00,T00] (  7,  4.38)     ref  ->  rdi         class-hnd single-def <Microsoft.CSharp.RuntimeBinder.Semantics.Symbol>
-;  V01 loc0         [V01,T08] (  5,  2.25)     ref  ->  rbx         class-hnd <System.Runtime.CompilerServices.DynamicAttribute>
-;  V02 loc1         [V02,T13] (  3,  1.50)     ref  ->  r15         class-hnd exact <Microsoft.CSharp.RuntimeBinder.Semantics.FieldSymbol>
-;  V03 loc2         [V03,T14] (  3,  1.50)     ref  ->  rax         class-hnd single-def <System.Object[]>
-;  V04 loc3         [V04,T15] (  3,  1.50)     ref  ->  r15         class-hnd single-def <Microsoft.CSharp.RuntimeBinder.Semantics.PropertySymbol>
-;  V05 loc4         [V05,T16] (  3,  1.50)     ref  ->  rax         class-hnd single-def <System.Object[]>
+;  V01 loc0         [V01,T02] (  7,  3.25)     ref  ->  rbx         class-hnd <System.Runtime.CompilerServices.DynamicAttribute>
+;  V02 loc1         [V02,T09] (  3,  1.50)     ref  ->  r15         class-hnd exact <Microsoft.CSharp.RuntimeBinder.Semantics.FieldSymbol>
+;  V03 loc2         [V03,T10] (  3,  1.50)     ref  ->  rax         class-hnd single-def <System.Object[]>
+;  V04 loc3         [V04,T11] (  3,  1.50)     ref  ->  r15         class-hnd single-def <Microsoft.CSharp.RuntimeBinder.Semantics.PropertySymbol>
+;  V05 loc4         [V05,T12] (  3,  1.50)     ref  ->  rax         class-hnd single-def <System.Object[]>
 ;# V06 OutArgs      [V06    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
 ;* V07 tmp1         [V07    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "spilling qmarkNull" <Microsoft.CSharp.RuntimeBinder.Semantics.FieldSymbol>
-;  V08 tmp2         [V08,T06] (  4,  2.75)     ref  ->  rbx         single-def "ISINST eval op1"
+;  V08 tmp2         [V08,T07] (  4,  2.75)     ref  ->  rbx         single-def "ISINST eval op1"
 ;* V09 tmp3         [V09    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "spilling qmarkNull" <System.Runtime.CompilerServices.DynamicAttribute>
-;  V10 tmp4         [V10,T07] (  4,  2.75)     ref  ->  rbx         single-def "ISINST eval op1"
+;  V10 tmp4         [V10,T08] (  4,  2.75)     ref  ->  rbx         single-def "ISINST eval op1"
 ;* V11 tmp5         [V11    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "spilling qmarkNull" <System.Runtime.CompilerServices.DynamicAttribute>
-;  V12 tmp6         [V12,T10] (  2,  2   )     ref  ->  rax         class-hnd single-def "Spilling to split statement for tree" <bool[]>
-;* V13 tmp7         [V13,T21] (  0,  0   )     ref  ->  zero-ref    class-hnd single-def "Spilling to split statement for tree" <bool[]>
-;  V14 tmp8         [V14,T11] (  2,  2   )     ref  ->  rcx         class-hnd single-def "Spilling to split statement for tree" <bool[]>
-;* V15 tmp9         [V15    ] (  0,  0   )   ubyte  ->  zero-ref    "Inline return value spill temp"
-;* V16 tmp10        [V16    ] (  0,  0   )     ref  ->  zero-ref    class-hnd single-def "Inline stloc first use temp" <bool[]>
-;  V17 tmp11        [V17,T12] (  2,  2   )     int  ->  rax         "Single return block return value"
-;  V18 tmp12        [V18,T02] (  3,  3   )     ref  ->  rax         single-def "argument with side effect"
-;  V19 tmp13        [V19,T03] (  3,  3   )     ref  ->  rdi         single-def "argument with side effect"
-;  V20 tmp14        [V20,T04] (  3,  3   )     ref  ->  rax         single-def "argument with side effect"
-;  V21 tmp15        [V21,T05] (  3,  3   )     ref  ->  rdi         single-def "argument with side effect"
-;  V22 cse0         [V22,T19] (  2,  1   )     int  ->  rsi         "CSE #01: moderate"
-;  V23 cse1         [V23,T20] (  2,  1   )     int  ->  rcx         "CSE #03: moderate"
-;  V24 cse2         [V24,T09] (  3,  1.50)     ref  ->  rcx         "CSE #05: moderate"
-;  V25 cse3         [V25,T17] (  3,  1.50)     int  ->  rdx         "CSE #06: moderate"
-;  V26 rat0         [V26,T01] (  5,  3.75)     ref  ->  r15         "replacement local"
-;  V27 rat1         [V27,T18] (  3,  1.25)    long  ->  rax         "CSE for expectedClsNode"
+;* V12 tmp6         [V12    ] (  0,  0   )     int  ->  zero-ref    "Single return block return value"
+;  V13 tmp7         [V13,T03] (  3,  3   )     ref  ->  rax         single-def "argument with side effect"
+;  V14 tmp8         [V14,T04] (  3,  3   )     ref  ->  rdi         single-def "argument with side effect"
+;  V15 tmp9         [V15,T05] (  3,  3   )     ref  ->  rax         single-def "argument with side effect"
+;  V16 tmp10        [V16,T06] (  3,  3   )     ref  ->  rdi         single-def "argument with side effect"
+;  V17 cse0         [V17,T14] (  2,  1   )     int  ->  rsi         "CSE #01: moderate"
+;  V18 cse1         [V18,T15] (  2,  1   )     int  ->  rdi         "CSE #03: moderate"
+;  V19 rat0         [V19,T01] (  5,  3.75)     ref  ->  r15         "replacement local"
+;  V20 rat1         [V20,T13] (  3,  1.25)    long  ->  rax         "CSE for expectedClsNode"
 ;
 ; Lcl frame size = 0
 
 G_M30750_IG01:
        push     rbp
        push     r15
        push     rbx
        lea      rbp, [rsp+0x10]
 						;; size=9 bbWeight=1 PerfScore 3.50
 G_M30750_IG02:
        xor      rbx, rbx
        test     rdi, rdi
        je       G_M30750_IG07
 						;; size=11 bbWeight=1 PerfScore 1.50
 G_M30750_IG03:
        mov      rax, 0xD1FFAB1E      ; Microsoft.CSharp.RuntimeBinder.Semantics.FieldSymbol
        cmp      qword ptr [rdi], rax
        jne      SHORT G_M30750_IG07
 						;; size=15 bbWeight=0.25 PerfScore 0.81
 G_M30750_IG04:
        mov      r15, rdi
        mov      rdi, r15
        mov      rax, 0xD1FFAB1E      ; code for Microsoft.CSharp.RuntimeBinder.Semantics.Symbol:getType():Microsoft.CSharp.RuntimeBinder.Semantics.CType:this
        call     [rax]Microsoft.CSharp.RuntimeBinder.Semantics.Symbol:getType():Microsoft.CSharp.RuntimeBinder.Semantics.CType:this
        mov      rdi, rax
        mov      esi, 15
        mov      rax, qword ptr [rax]
        mov      rax, qword ptr [rax+0x50]
        call     [rax+0x28]Microsoft.CSharp.RuntimeBinder.Semantics.CType:IsPredefType(uint):bool:this
        test     eax, eax
        je       G_M30750_IG15
        mov      rdi, gword ptr [r15+0x38]
        mov      rsi, 0xD1FFAB1E      ; 'System.Runtime.CompilerServices.DynamicAttribute'
        xor      edx, edx
        mov      rax, qword ptr [rdi]
        mov      rax, qword ptr [rax+0x48]
        call     [rax+0x28]System.Reflection.MemberInfo:GetCustomAttributes(System.Type,bool):System.Object[]:this
        mov      esi, dword ptr [rax+0x08]
        cmp      esi, 1
        jne      G_M30750_IG12
        mov      rbx, gword ptr [rax+0x10]
        test     rbx, rbx
        je       G_M30750_IG15
 						;; size=95 bbWeight=0.50 PerfScore 14.25
 G_M30750_IG05:
        mov      rsi, 0xD1FFAB1E      ; System.Runtime.CompilerServices.DynamicAttribute
        cmp      qword ptr [rbx], rsi
        jne      G_M30750_IG15
 						;; size=19 bbWeight=0.25 PerfScore 0.81
 G_M30750_IG06:
        jmp      G_M30750_IG12
 						;; size=5 bbWeight=0.12 PerfScore 0.25
 G_M30750_IG07:
        mov      r15, rdi
        test     r15, r15
        je       SHORT G_M30750_IG10
 						;; size=8 bbWeight=0.50 PerfScore 0.75
 G_M30750_IG08:
        mov      rax, 0xD1FFAB1E      ; Microsoft.CSharp.RuntimeBinder.Semantics.PropertySymbol
        cmp      qword ptr [r15], rax
        je       SHORT G_M30750_IG10
 						;; size=15 bbWeight=0.25 PerfScore 0.81
 G_M30750_IG09:
        mov      rsi, rdi
        mov      rdi, rax
        mov      rax, 0xD1FFAB1E      ; code for CORINFO_HELP_CHKCASTCLASS_SPECIAL
        call     [rax]CORINFO_HELP_CHKCASTCLASS_SPECIAL
        mov      r15, rax
 						;; size=21 bbWeight=0.12 PerfScore 0.50
 G_M30750_IG10:
        mov      rdi, r15
        mov      rax, 0xD1FFAB1E      ; code for Microsoft.CSharp.RuntimeBinder.Semantics.Symbol:getType():Microsoft.CSharp.RuntimeBinder.Semantics.CType:this
        cmp      dword ptr [rdi], edi
        call     [rax]Microsoft.CSharp.RuntimeBinder.Semantics.Symbol:getType():Microsoft.CSharp.RuntimeBinder.Semantics.CType:this
        mov      rdi, rax
        mov      esi, 15
        mov      rax, qword ptr [rax]
        mov      rax, qword ptr [rax+0x50]
        call     [rax+0x28]Microsoft.CSharp.RuntimeBinder.Semantics.CType:IsPredefType(uint):bool:this
        test     eax, eax
        je       SHORT G_M30750_IG15
        mov      rdi, gword ptr [r15+0xB0]
        mov      rsi, 0xD1FFAB1E      ; 'System.Runtime.CompilerServices.DynamicAttribute'
        xor      edx, edx
        mov      rax, qword ptr [rdi]
        mov      rax, qword ptr [rax+0x48]
        call     [rax+0x28]System.Reflection.MemberInfo:GetCustomAttributes(System.Type,bool):System.Object[]:this
-       mov      ecx, dword ptr [rax+0x08]
-       cmp      ecx, 1
+       mov      edi, dword ptr [rax+0x08]
+       cmp      edi, 1
        jne      SHORT G_M30750_IG12
        mov      rbx, gword ptr [rax+0x10]
        test     rbx, rbx
        je       SHORT G_M30750_IG15
 						;; size=85 bbWeight=0.50 PerfScore 15.12
 G_M30750_IG11:
-       mov      rax, 0xD1FFAB1E      ; System.Runtime.CompilerServices.DynamicAttribute
-       cmp      qword ptr [rbx], rax
+       mov      rdi, 0xD1FFAB1E      ; System.Runtime.CompilerServices.DynamicAttribute
+       cmp      qword ptr [rbx], rdi
        jne      SHORT G_M30750_IG15
 						;; size=15 bbWeight=0.25 PerfScore 0.81
 G_M30750_IG12:
        test     rbx, rbx
        je       SHORT G_M30750_IG15
-       mov      rcx, gword ptr [rbx+0x08]
-       mov      rax, rcx
-       mov      edx, dword ptr [rax+0x08]
-       test     edx, edx
+       mov      rdi, gword ptr [rbx+0x08]
+       mov      r11, 0xD1FFAB1E      ; code for System.Collections.Generic.ICollection`1[bool]:get_Count():int:this
+       call     [r11]System.Collections.Generic.ICollection`1[bool]:get_Count():int:this
+       test     eax, eax
        jne      SHORT G_M30750_IG14
        mov      eax, 1
-						;; size=24 bbWeight=0.50 PerfScore 3.50
+						;; size=31 bbWeight=0.50 PerfScore 4.00
 G_M30750_IG13:
        pop      rbx
        pop      r15
        pop      rbp
        ret      
 						;; size=5 bbWeight=0.50 PerfScore 1.25
 G_M30750_IG14:
-       cmp      edx, 1
+       mov      rdi, gword ptr [rbx+0x08]
+       mov      r11, 0xD1FFAB1E      ; code for System.Collections.Generic.ICollection`1[bool]:get_Count():int:this
+       call     [r11]System.Collections.Generic.ICollection`1[bool]:get_Count():int:this
+       cmp      eax, 1
        je       SHORT G_M30750_IG17
-						;; size=5 bbWeight=0.50 PerfScore 0.62
+						;; size=22 bbWeight=0.50 PerfScore 3.25
 G_M30750_IG15:
        xor      eax, eax
 						;; size=2 bbWeight=0.50 PerfScore 0.12
 G_M30750_IG16:
        pop      rbx
        pop      r15
        pop      rbp
        ret      
 						;; size=5 bbWeight=0.50 PerfScore 1.25
 G_M30750_IG17:
-       movzx    rax, byte  ptr [rcx+0x10]
-						;; size=4 bbWeight=0.50 PerfScore 1.00
+       mov      rdi, gword ptr [rbx+0x08]
+       mov      r11, 0xD1FFAB1E      ; code for System.Collections.Generic.IList`1[bool]:get_Item(int):bool:this
+       xor      esi, esi
+       cmp      dword ptr [rdi], edi
+						;; size=18 bbWeight=0.50 PerfScore 2.25
 G_M30750_IG18:
        pop      rbx
        pop      r15
        pop      rbp
-       ret      
-						;; size=5 bbWeight=0.50 PerfScore 1.25
+       tail.jmp [r11]System.Collections.Generic.IList`1[bool]:get_Item(int):bool:this
+						;; size=7 bbWeight=0.50 PerfScore 1.75
 
-; Total bytes of code 348, prolog size 9, PerfScore 48.12, instruction count 98, allocated bytes for code 348 (MethodHash=54f487e1) for method Microsoft.CSharp.RuntimeBinder.Semantics.MemberLookup:IsDynamicMember(Microsoft.CSharp.RuntimeBinder.Semantics.Symbol):bool (FullOpts)
+; Total bytes of code 388, prolog size 9, PerfScore 53.00, instruction count 104, allocated bytes for code 388 (MethodHash=54f487e1) for method Microsoft.CSharp.RuntimeBinder.Semantics.MemberLookup:IsDynamicMember(Microsoft.CSharp.RuntimeBinder.Semantics.Symbol):bool (FullOpts)
 ; ============================================================

1 (0.81 % of base) - System.Collections.Immutable.ImmutableArray`1[System.__Canon]:System.Collections.IStructuralEquatable.GetHashCode(System.Collections.IEqualityComparer):int:this

 ; Assembly listing for method System.Collections.Immutable.ImmutableArray`1[System.__Canon]:System.Collections.IStructuralEquatable.GetHashCode(System.Collections.IEqualityComparer):int:this (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
 ; rbp based frame
 ; partially interruptible
 ; No PGO data
 ; Final local variable assignments
 ;
 ;  V00 this         [V00,T01] (  3,  3   )   byref  ->  rdi         this single-def
 ;  V01 TypeCtx      [V01,T00] (  5,  3.60)    long  ->  rax         single-def
 ;  V02 arg1         [V02,T02] (  3,  2.50)     ref  ->  rdx         class-hnd single-def <System.Collections.IEqualityComparer>
 ;  V03 loc0         [V03    ] (  3,  2.50)  struct ( 8) [rbp-0x10]  do-not-enreg[XS] must-init addr-exposed ld-addr-op <System.Collections.Immutable.ImmutableArray`1[System.__Canon]>
 ;  V04 loc1         [V04,T04] (  3,  2.50)     ref  ->  rdi         class-hnd single-def <System.__Canon[]>
 ;# V05 OutArgs      [V05    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
 ;* V06 tmp1         [V06    ] (  0,  0   )    long  ->  zero-ref    "spilling helperCall"
 ;  V07 tmp2         [V07,T05] (  3,  2   )    long  ->  rcx         "Indirect call through function pointer"
 ;  V08 tmp3         [V08    ] (  3,  2.50)     ref  ->  [rbp-0x10]  do-not-enreg[X] addr-exposed "field V03.array (fldOffset=0x0)" P-DEP
 ;  V09 rat0         [V09,T03] (  3,  2.80)    long  ->  rcx         "fgMakeTemp is creating a new local variable"
 ;
 ; Lcl frame size = 16
 
 G_M35883_IG01:
        push     rbp
        sub      rsp, 16
        lea      rbp, [rsp+0x10]
        xor      eax, eax
        mov      qword ptr [rbp-0x10], rax
        mov      qword ptr [rbp-0x08], rsi
        mov      rax, rsi
 						;; size=23 bbWeight=1 PerfScore 4.25
 G_M35883_IG02:
        mov      rdi, gword ptr [rdi]
        mov      gword ptr [rbp-0x10], rdi
        mov      rdi, gword ptr [rbp-0x10]
        test     rdi, rdi
        je       SHORT G_M35883_IG05
 						;; size=16 bbWeight=1 PerfScore 5.25
 G_M35883_IG03:
        mov      rsi, rdx
-       mov      rax, 0xD1FFAB1E      ; code for System.Array:System.Collections.IStructuralEquatable.GetHashCode(System.Collections.IEqualityComparer):int:this
-       call     [rax]System.Array:System.Collections.IStructuralEquatable.GetHashCode(System.Collections.IEqualityComparer):int:this
+       mov      r11, 0xD1FFAB1E      ; code for System.Collections.IStructuralEquatable:GetHashCode(System.Collections.IEqualityComparer):int:this
+       call     [r11]System.Collections.IStructuralEquatable:GetHashCode(System.Collections.IEqualityComparer):int:this
        nop      
-						;; size=16 bbWeight=0.50 PerfScore 1.88
+						;; size=17 bbWeight=0.50 PerfScore 1.88
 G_M35883_IG04:
        add      rsp, 16
        pop      rbp
        ret      
 						;; size=6 bbWeight=0.50 PerfScore 0.88
 G_M35883_IG05:
        mov      rdi, qword ptr [rax+0x30]
        mov      rdi, qword ptr [rdi]
        mov      rcx, qword ptr [rdi+0xD8]
        test     rcx, rcx
        je       SHORT G_M35883_IG08
 						;; size=19 bbWeight=0.50 PerfScore 3.62
 G_M35883_IG06:
        lea      rdi, [rbp-0x10]
        call     rcx
        nop      
 						;; size=7 bbWeight=0.50 PerfScore 1.88
 G_M35883_IG07:
        add      rsp, 16
        pop      rbp
        ret      
 						;; size=6 bbWeight=0.50 PerfScore 0.88
 G_M35883_IG08:
        mov      rdi, rax
        mov      rsi, 0xD1FFAB1E      ; global ptr
        mov      rax, 0xD1FFAB1E      ; code for CORINFO_HELP_RUNTIMEHANDLE_CLASS
        call     [rax]CORINFO_HELP_RUNTIMEHANDLE_CLASS
        mov      rcx, rax
        jmp      SHORT G_M35883_IG06
 						;; size=30 bbWeight=0.10 PerfScore 0.60
 
-; Total bytes of code 123, prolog size 20, PerfScore 19.22, instruction count 36, allocated bytes for code 123 (MethodHash=2def73d4) for method System.Collections.Immutable.ImmutableArray`1[System.__Canon]:System.Collections.IStructuralEquatable.GetHashCode(System.Collections.IEqualityComparer):int:this (FullOpts)
+; Total bytes of code 124, prolog size 20, PerfScore 19.22, instruction count 36, allocated bytes for code 124 (MethodHash=2def73d4) for method System.Collections.Immutable.ImmutableArray`1[System.__Canon]:System.Collections.IStructuralEquatable.GetHashCode(System.Collections.IEqualityComparer):int:this (FullOpts)
 ; ============================================================

[MihuBot]

Top method improvements

-127 (-44.88 % of base) - System.Collections.Generic.OrderedDictionary`2+KeyCollection[double,System.Nullable`1[int]]:System.Collections.Generic.IEnumerable.GetEnumerator():System.Collections.Generic.IEnumerator`1[double]:this

 ; Assembly listing for method System.Collections.Generic.OrderedDictionary`2+KeyCollection[double,System.Nullable`1[int]]:System.Collections.Generic.IEnumerable<TKey>.GetEnumerator():System.Collections.Generic.IEnumerator`1[double]:this (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
 ; rbp based frame
-; partially interruptible
+; fully interruptible
 ; No PGO data
-; 0 inlinees with PGO data; 11 single block inlinees; 1 inlinees without PGO data
+; 0 inlinees with PGO data; 8 single block inlinees; 0 inlinees without PGO data
 ; Final local variable assignments
 ;
-;  V00 this         [V00,T02] (  3,  3   )     ref  ->  rdi         this class-hnd single-def <System.Collections.Generic.OrderedDictionary`2+KeyCollection[double,System.Nullable`1[int]]>
+;  V00 this         [V00,T01] (  3,  3   )     ref  ->  rdi         this class-hnd single-def <System.Collections.Generic.OrderedDictionary`2+KeyCollection[double,System.Nullable`1[int]]>
 ;* V01 loc0         [V01    ] (  0,  0   )     ref  ->  zero-ref    class-hnd exact <System.Collections.Generic.OrderedDictionary`2+KeyCollection+Enumerator[double,System.Nullable`1[int]]>
 ;# V02 OutArgs      [V02    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
 ;  V03 tmp1         [V03,T00] (  7,  7   )     ref  ->  r15         class-hnd exact single-def "Single-def Box Helper" <System.Collections.Generic.OrderedDictionary`2+KeyCollection+Enumerator[double,System.Nullable`1[int]]>
 ;* V04 tmp2         [V04    ] (  0,  0   )  struct (40) zero-ref    do-not-enreg[S] "stack copy for value returned via return buffer" <System.Collections.Generic.OrderedDictionary`2+KeyCollection+Enumerator[double,System.Nullable`1[int]]>
 ;* V05 tmp3         [V05    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "Inlining Arg" <System.Collections.Generic.OrderedDictionary`2[double,System.Nullable`1[int]]>
 ;* V06 tmp4         [V06    ] (  0,  0   )  struct (40) zero-ref    do-not-enreg[S] ld-addr-op "NewObj constructor temp" <System.Collections.Generic.OrderedDictionary`2+KeyCollection+Enumerator[double,System.Nullable`1[int]]>
-;  V07 tmp5         [V07,T03] (  3,  3   )     ref  ->  rsi         class-hnd single-def "Inlining Arg" <System.Collections.Generic.OrderedDictionary`2[double,System.Nullable`1[int]]>
-;* V08 tmp6         [V08,T09] (  0,  0   )  struct (40) zero-ref    do-not-enreg[SF] ld-addr-op "NewObj constructor temp" <System.Collections.Generic.OrderedDictionary`2+Enumerator[double,System.Nullable`1[int]]>
-;  V09 tmp7         [V09,T06] (  3,  1.50)     ref  ->  rax         class-hnd exact "Inline return value spill temp" <System.SZGenericArrayEnumerator`1[double]>
-;  V10 tmp8         [V10,T04] (  3,  3   )     ref  ->  rbx         class-hnd single-def "Inlining Arg" <double[]>
-;* V11 tmp9         [V11    ] (  0,  0   )     ref  ->  zero-ref    class-hnd single-def "Inline stloc first use temp" <double[]>
-;  V12 tmp10        [V12,T07] (  3,  1.50)     int  ->  r15         "Inline stloc first use temp"
-;  V13 tmp11        [V13,T01] (  5,  5   )     ref  ->  r14         class-hnd exact single-def "NewObj constructor temp" <System.SZGenericArrayEnumerator`1[double]>
-;* V14 tmp12        [V14    ] (  0,  0   )     ref  ->  zero-ref    single-def "V08.[000..008)"
-;  V15 tmp13        [V15,T08] (  2,  1   )     int  ->  rbx         "V08.[008..012)"
-;* V16 tmp14        [V16    ] (  0,  0   )     int  ->  zero-ref    "V08.[012..016)"
-;* V17 tmp15        [V17    ] (  0,  0   )   ubyte  ->  zero-ref    "V08.[016..017)"
-;  V18 cse0         [V18,T05] (  3,  2.50)     ref  ->  rbx         "CSE #01: aggressive"
+;  V07 tmp5         [V07,T02] (  3,  3   )     ref  ->  rsi         class-hnd single-def "Inlining Arg" <System.Collections.Generic.OrderedDictionary`2[double,System.Nullable`1[int]]>
+;* V08 tmp6         [V08,T06] (  0,  0   )  struct (40) zero-ref    do-not-enreg[SF] ld-addr-op "NewObj constructor temp" <System.Collections.Generic.OrderedDictionary`2+Enumerator[double,System.Nullable`1[int]]>
+;* V09 tmp7         [V09    ] (  0,  0   )     ref  ->  zero-ref    single-def "V08.[000..008)"
+;  V10 tmp8         [V10,T05] (  2,  1   )     int  ->  rbx         "V08.[008..012)"
+;* V11 tmp9         [V11    ] (  0,  0   )     int  ->  zero-ref    "V08.[012..016)"
+;* V12 tmp10        [V12    ] (  0,  0   )   ubyte  ->  zero-ref    "V08.[016..017)"
+;  V13 tmp11        [V13,T04] (  2,  2   )     ref  ->  rdi         single-def "argument with side effect"
+;  V14 cse0         [V14,T03] (  3,  2.50)     ref  ->  rbx         "CSE #01: aggressive"
 ;
-; Lcl frame size = 8
+; Lcl frame size = 0
 
 G_M34499_IG01:
        push     rbp
        push     r15
-       push     r14
        push     rbx
-       push     rax
-       lea      rbp, [rsp+0x20]
-						;; size=12 bbWeight=1 PerfScore 5.50
+       lea      rbp, [rsp+0x10]
+						;; size=9 bbWeight=1 PerfScore 3.50
 G_M34499_IG02:
        mov      rbx, gword ptr [rdi+0x08]
        cmp      dword ptr [rbx+0x38], 0
-       jne      G_M34499_IG08
-						;; size=14 bbWeight=1 PerfScore 5.00
+       jne      SHORT G_M34499_IG06
+						;; size=10 bbWeight=1 PerfScore 5.00
 G_M34499_IG03:
        mov      rdi, 0xD1FFAB1E      ; global ptr
        test     byte  ptr [rdi], 1
-       je       G_M34499_IG10
-						;; size=19 bbWeight=0.50 PerfScore 1.62
+       je       SHORT G_M34499_IG08
+						;; size=15 bbWeight=0.50 PerfScore 1.62
 G_M34499_IG04:
        mov      rdi, 0xD1FFAB1E      ; data for System.Array+EmptyArray`1[double]:Value
-       mov      rbx, gword ptr [rdi]
-       mov      r15d, dword ptr [rbx+0x08]
-       test     r15d, r15d
-       jne      SHORT G_M34499_IG06
-       mov      rdi, 0xD1FFAB1E      ; global ptr
-       test     byte  ptr [rdi], 1
-       je       G_M34499_IG11
-						;; size=41 bbWeight=0.50 PerfScore 4.38
+       mov      rdi, gword ptr [rdi]
+       mov      r11, 0xD1FFAB1E      ; code for System.Collections.Generic.IEnumerable`1[double]:GetEnumerator():System.Collections.Generic.IEnumerator`1[double]:this
+       cmp      dword ptr [rdi], edi
+						;; size=25 bbWeight=0.50 PerfScore 2.25
 G_M34499_IG05:
-       mov      rdi, 0xD1FFAB1E      ; data for System.SZGenericArrayEnumerator`1[double]:Empty
-       mov      rax, gword ptr [rdi]
-       jmp      SHORT G_M34499_IG07
-						;; size=15 bbWeight=0.50 PerfScore 2.12
-G_M34499_IG06:
-       mov      rdi, 0xD1FFAB1E      ; System.SZGenericArrayEnumerator`1[double]
-       call     CORINFO_HELP_NEWSFAST
-       mov      r14, rax
-       mov      dword ptr [r14+0x08], -1
-       mov      dword ptr [r14+0x0C], r15d
-       lea      rdi, bword ptr [r14+0x10]
-       mov      rsi, rbx
-       call     CORINFO_HELP_ASSIGN_REF
-       mov      rax, r14
-						;; size=45 bbWeight=0.50 PerfScore 2.75
-G_M34499_IG07:
-       add      rsp, 8
        pop      rbx
-       pop      r14
        pop      r15
        pop      rbp
-       ret      
-						;; size=11 bbWeight=0.50 PerfScore 1.62
-G_M34499_IG08:
+       tail.jmp [r11]System.Collections.Generic.IEnumerable`1[double]:GetEnumerator():System.Collections.Generic.IEnumerator`1[double]:this
+						;; size=7 bbWeight=0.50 PerfScore 1.75
+G_M34499_IG06:
        mov      rdi, 0xD1FFAB1E      ; System.Collections.Generic.OrderedDictionary`2+KeyCollection+Enumerator[double,System.Nullable`1[int]]
        call     CORINFO_HELP_NEWSFAST
        mov      r15, rax
        mov      rsi, rbx
        mov      ebx, dword ptr [rsi+0x3C]
        lea      rdi, bword ptr [r15+0x08]
        call     CORINFO_HELP_ASSIGN_REF
        mov      dword ptr [r15+0x10], ebx
        xor      eax, eax
        mov      dword ptr [r15+0x14], eax
        mov      byte  ptr [r15+0x18], 0
        vxorps   xmm0, xmm0, xmm0
        vmovups  xmmword ptr [r15+0x20], xmm0
        mov      rax, r15
 						;; size=61 bbWeight=0.50 PerfScore 5.04
-G_M34499_IG09:
-       add      rsp, 8
+G_M34499_IG07:
        pop      rbx
-       pop      r14
        pop      r15
        pop      rbp
        ret      
-						;; size=11 bbWeight=0.50 PerfScore 1.62
-G_M34499_IG10:
+						;; size=5 bbWeight=0.50 PerfScore 1.25
+G_M34499_IG08:
        mov      rdi, 0xD1FFAB1E      ; System.Array+EmptyArray`1[double]
        mov      rax, 0xD1FFAB1E      ; code for CORINFO_HELP_GET_GCSTATIC_BASE
        call     [rax]CORINFO_HELP_GET_GCSTATIC_BASE
-       jmp      G_M34499_IG04
-						;; size=27 bbWeight=0 PerfScore 0.00
-G_M34499_IG11:
-       mov      rdi, 0xD1FFAB1E      ; System.SZGenericArrayEnumerator`1[double]
-       mov      rax, 0xD1FFAB1E      ; code for CORINFO_HELP_GET_GCSTATIC_BASE
-       call     [rax]CORINFO_HELP_GET_GCSTATIC_BASE
-       jmp      G_M34499_IG05
-						;; size=27 bbWeight=0 PerfScore 0.00
+       jmp      SHORT G_M34499_IG04
+						;; size=24 bbWeight=0 PerfScore 0.00
 
-; Total bytes of code 283, prolog size 12, PerfScore 29.67, instruction count 66, allocated bytes for code 283 (MethodHash=147e793c) for method System.Collections.Generic.OrderedDictionary`2+KeyCollection[double,System.Nullable`1[int]]:System.Collections.Generic.IEnumerable<TKey>.GetEnumerator():System.Collections.Generic.IEnumerator`1[double]:this (FullOpts)
+; Total bytes of code 156, prolog size 9, PerfScore 20.42, instruction count 40, allocated bytes for code 156 (MethodHash=147e793c) for method System.Collections.Generic.OrderedDictionary`2+KeyCollection[double,System.Nullable`1[int]]:System.Collections.Generic.IEnumerable<TKey>.GetEnumerator():System.Collections.Generic.IEnumerator`1[double]:this (FullOpts)
 ; ============================================================

-127 (-44.88 % of base) - System.Collections.Generic.OrderedDictionary`2+KeyCollection[long,System.Nullable`1[int]]:System.Collections.Generic.IEnumerable.GetEnumerator():System.Collections.Generic.IEnumerator`1[long]:this

 ; Assembly listing for method System.Collections.Generic.OrderedDictionary`2+KeyCollection[long,System.Nullable`1[int]]:System.Collections.Generic.IEnumerable<TKey>.GetEnumerator():System.Collections.Generic.IEnumerator`1[long]:this (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
 ; rbp based frame
-; partially interruptible
+; fully interruptible
 ; No PGO data
-; 0 inlinees with PGO data; 11 single block inlinees; 1 inlinees without PGO data
+; 0 inlinees with PGO data; 8 single block inlinees; 0 inlinees without PGO data
 ; Final local variable assignments
 ;
-;  V00 this         [V00,T02] (  3,  3   )     ref  ->  rdi         this class-hnd single-def <System.Collections.Generic.OrderedDictionary`2+KeyCollection[long,System.Nullable`1[int]]>
+;  V00 this         [V00,T01] (  3,  3   )     ref  ->  rdi         this class-hnd single-def <System.Collections.Generic.OrderedDictionary`2+KeyCollection[long,System.Nullable`1[int]]>
 ;* V01 loc0         [V01    ] (  0,  0   )     ref  ->  zero-ref    class-hnd exact <System.Collections.Generic.OrderedDictionary`2+KeyCollection+Enumerator[long,System.Nullable`1[int]]>
 ;# V02 OutArgs      [V02    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
 ;  V03 tmp1         [V03,T00] (  7,  7   )     ref  ->  r15         class-hnd exact single-def "Single-def Box Helper" <System.Collections.Generic.OrderedDictionary`2+KeyCollection+Enumerator[long,System.Nullable`1[int]]>
 ;* V04 tmp2         [V04    ] (  0,  0   )  struct (40) zero-ref    do-not-enreg[S] "stack copy for value returned via return buffer" <System.Collections.Generic.OrderedDictionary`2+KeyCollection+Enumerator[long,System.Nullable`1[int]]>
 ;* V05 tmp3         [V05    ] (  0,  0   )     ref  ->  zero-ref    class-hnd "Inlining Arg" <System.Collections.Generic.OrderedDictionary`2[long,System.Nullable`1[int]]>
 ;* V06 tmp4         [V06    ] (  0,  0   )  struct (40) zero-ref    do-not-enreg[S] ld-addr-op "NewObj constructor temp" <System.Collections.Generic.OrderedDictionary`2+KeyCollection+Enumerator[long,System.Nullable`1[int]]>
-;  V07 tmp5         [V07,T03] (  3,  3   )     ref  ->  rsi         class-hnd single-def "Inlining Arg" <System.Collections.Generic.OrderedDictionary`2[long,System.Nullable`1[int]]>
-;* V08 tmp6         [V08,T09] (  0,  0   )  struct (40) zero-ref    do-not-enreg[SF] ld-addr-op "NewObj constructor temp" <System.Collections.Generic.OrderedDictionary`2+Enumerator[long,System.Nullable`1[int]]>
-;  V09 tmp7         [V09,T06] (  3,  1.50)     ref  ->  rax         class-hnd exact "Inline return value spill temp" <System.SZGenericArrayEnumerator`1[long]>
-;  V10 tmp8         [V10,T04] (  3,  3   )     ref  ->  rbx         class-hnd single-def "Inlining Arg" <long[]>
-;* V11 tmp9         [V11    ] (  0,  0   )     ref  ->  zero-ref    class-hnd single-def "Inline stloc first use temp" <long[]>
-;  V12 tmp10        [V12,T07] (  3,  1.50)     int  ->  r15         "Inline stloc first use temp"
-;  V13 tmp11        [V13,T01] (  5,  5   )     ref  ->  r14         class-hnd exact single-def "NewObj constructor temp" <System.SZGenericArrayEnumerator`1[long]>
-;* V14 tmp12        [V14    ] (  0,  0   )     ref  ->  zero-ref    single-def "V08.[000..008)"
-;  V15 tmp13        [V15,T08] (  2,  1   )     int  ->  rbx         "V08.[008..012)"
-;* V16 tmp14        [V16    ] (  0,  0   )     int  ->  zero-ref    "V08.[012..016)"
-;* V17 tmp15        [V17    ] (  0,  0   )   ubyte  ->  zero-ref    "V08.[016..017)"
-;  V18 cse0         [V18,T05] (  3,  2.50)     ref  ->  rbx         "CSE #01: aggressive"
+;  V07 tmp5         [V07,T02] (  3,  3   )     ref  ->  rsi         class-hnd single-def "Inlining Arg" <System.Collections.Generic.OrderedDictionary`2[long,System.Nullable`1[int]]>
+;* V08 tmp6         [V08,T06] (  0,  0   )  struct (40) zero-ref    do-not-enreg[SF] ld-addr-op "NewObj constructor temp" <System.Collections.Generic.OrderedDictionary`2+Enumerator[long,System.Nullable`1[int]]>
+;* V09 tmp7         [V09    ] (  0,  0   )     ref  ->  zero-ref    single-def "V08.[000..008)"
+;  V10 tmp8         [V10,T05] (  2,  1   )     int  ->  rbx         "V08.[008..012)"
+;* V11 tmp9         [V11    ] (  0,  0   )     int  ->  zero-ref    "V08.[012..016)"
+;* V12 tmp10        [V12    ] (  0,  0   )   ubyte  ->  zero-ref    "V08.[016..017)"
+;  V13 tmp11        [V13,T04] (  2,  2   )     ref  ->  rdi         single-def "argument with side effect"
+;  V14 cse0         [V14,T03] (  3,  2.50)     ref  ->  rbx         "CSE #01: aggressive"
 ;
-; Lcl frame size = 8
+; Lcl frame size = 0
 
 G_M16739_IG01:
        push     rbp
        push     r15
-       push     r14
        push     rbx
-       push     rax
-       lea      rbp, [rsp+0x20]
-						;; size=12 bbWeight=1 PerfScore 5.50
+       lea      rbp, [rsp+0x10]
+						;; size=9 bbWeight=1 PerfScore 3.50
 G_M16739_IG02:
        mov      rbx, gword ptr [rdi+0x08]
        cmp      dword ptr [rbx+0x38], 0
-       jne      G_M16739_IG08
-						;; size=14 bbWeight=1 PerfScore 5.00
+       jne      SHORT G_M16739_IG06
+						;; size=10 bbWeight=1 PerfScore 5.00
 G_M16739_IG03:
        mov      rdi, 0xD1FFAB1E      ; global ptr
        test     byte  ptr [rdi], 1
-       je       G_M16739_IG10
-						;; size=19 bbWeight=0.50 PerfScore 1.62
+       je       SHORT G_M16739_IG08
+						;; size=15 bbWeight=0.50 PerfScore 1.62
 G_M16739_IG04:
        mov      rdi, 0xD1FFAB1E      ; data for System.Array+EmptyArray`1[long]:Value
-       mov      rbx, gword ptr [rdi]
-       mov      r15d, dword ptr [rbx+0x08]
-       test     r15d, r15d
-       jne      SHORT G_M16739_IG06
-       mov      rdi, 0xD1FFAB1E      ; global ptr
-       test     byte  ptr [rdi], 1
-       je       G_M16739_IG11
-						;; size=41 bbWeight=0.50 PerfScore 4.38
+       mov      rdi, gword ptr [rdi]
+       mov      r11, 0xD1FFAB1E      ; code for System.Collections.Generic.IEnumerable`1[long]:GetEnumerator():System.Collections.Generic.IEnumerator`1[long]:this
+       cmp      dword ptr [rdi], edi
+						;; size=25 bbWeight=0.50 PerfScore 2.25
 G_M16739_IG05:
-       mov      rdi, 0xD1FFAB1E      ; data for System.SZGenericArrayEnumerator`1[long]:Empty
-       mov      rax, gword ptr [rdi]
-       jmp      SHORT G_M16739_IG07
-						;; size=15 bbWeight=0.50 PerfScore 2.12
-G_M16739_IG06:
-       mov      rdi, 0xD1FFAB1E      ; System.SZGenericArrayEnumerator`1[long]
-       call     CORINFO_HELP_NEWSFAST
-       mov      r14, rax
-       mov      dword ptr [r14+0x08], -1
-       mov      dword ptr [r14+0x0C], r15d
-       lea      rdi, bword ptr [r14+0x10]
-       mov      rsi, rbx
-       call     CORINFO_HELP_ASSIGN_REF
-       mov      rax, r14
-						;; size=45 bbWeight=0.50 PerfScore 2.75
-G_M16739_IG07:
-       add      rsp, 8
        pop      rbx
-       pop      r14
        pop      r15
        pop      rbp
-       ret      
-						;; size=11 bbWeight=0.50 PerfScore 1.62
-G_M16739_IG08:
+       tail.jmp [r11]System.Collections.Generic.IEnumerable`1[long]:GetEnumerator():System.Collections.Generic.IEnumerator`1[long]:this
+						;; size=7 bbWeight=0.50 PerfScore 1.75
+G_M16739_IG06:
        mov      rdi, 0xD1FFAB1E      ; System.Collections.Generic.OrderedDictionary`2+KeyCollection+Enumerator[long,System.Nullable`1[int]]
        call     CORINFO_HELP_NEWSFAST
        mov      r15, rax
        mov      rsi, rbx
        mov      ebx, dword ptr [rsi+0x3C]
        lea      rdi, bword ptr [r15+0x08]
        call     CORINFO_HELP_ASSIGN_REF
        mov      dword ptr [r15+0x10], ebx
        xor      eax, eax
        mov      dword ptr [r15+0x14], eax
        mov      byte  ptr [r15+0x18], 0
        vxorps   xmm0, xmm0, xmm0
        vmovups  xmmword ptr [r15+0x20], xmm0
        mov      rax, r15
 						;; size=61 bbWeight=0.50 PerfScore 5.04
-G_M16739_IG09:
-       add      rsp, 8
+G_M16739_IG07:
        pop      rbx
-       pop      r14
        pop      r15
        pop      rbp
        ret      
-						;; size=11 bbWeight=0.50 PerfScore 1.62
-G_M16739_IG10:
+						;; size=5 bbWeight=0.50 PerfScore 1.25
+G_M16739_IG08:
        mov      rdi, 0xD1FFAB1E      ; System.Array+EmptyArray`1[long]
        mov      rax, 0xD1FFAB1E      ; code for CORINFO_HELP_GET_GCSTATIC_BASE
        call     [rax]CORINFO_HELP_GET_GCSTATIC_BASE
-       jmp      G_M16739_IG04
-						;; size=27 bbWeight=0 PerfScore 0.00
-G_M16739_IG11:
-       mov      rdi, 0xD1FFAB1E      ; System.SZGenericArrayEnumerator`1[long]
-       mov      rax, 0xD1FFAB1E      ; code for CORINFO_HELP_GET_GCSTATIC_BASE
-       call     [rax]CORINFO_HELP_GET_GCSTATIC_BASE
-       jmp      G_M16739_IG05
-						;; size=27 bbWeight=0 PerfScore 0.00
+       jmp      SHORT G_M16739_IG04
+						;; size=24 bbWeight=0 PerfScore 0.00
 
-; Total bytes of code 283, prolog size 12, PerfScore 29.67, instruction count 66, allocated bytes for code 283 (MethodHash=0446be9c) for method System.Collections.Generic.OrderedDictionary`2+KeyCollection[long,System.Nullable`1[int]]:System.Collections.Generic.IEnumerable<TKey>.GetEnumerator():System.Collections.Generic.IEnumerator`1[long]:this (FullOpts)
+; Total bytes of code 156, prolog size 9, PerfScore 20.42, instruction count 40, allocated bytes for code 156 (MethodHash=0446be9c) for method System.Collections.Generic.OrderedDictionary`2+KeyCollection[long,System.Nullable`1[int]]:System.Collections.Generic.IEnumerable<TKey>.GetEnumerator():System.Collections.Generic.IEnumerator`1[long]:this (FullOpts)
 ; ============================================================

-127 (-49.03 % of base) - System.Collections.Immutable.ImmutableQueue`1[byte]:System.Collections.Generic.IEnumerable.GetEnumerator():System.Collections.Generic.IEnumerator`1[byte]:this

 ; Assembly listing for method System.Collections.Immutable.ImmutableQueue`1[byte]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[byte]:this (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
 ; rbp based frame
-; partially interruptible
+; fully interruptible
 ; No PGO data
-; 0 inlinees with PGO data; 9 single block inlinees; 1 inlinees without PGO data
+; 0 inlinees with PGO data; 6 single block inlinees; 0 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 this         [V00,T00] (  4,  3.50)     ref  ->  rbx         this class-hnd single-def <System.Collections.Immutable.ImmutableQueue`1[byte]>
 ;* V01 loc0         [V01    ] (  0,  0   )     ref  ->  zero-ref    class-hnd exact <System.Collections.Immutable.ImmutableQueue`1+EnumeratorObject[byte]>
 ;# V02 OutArgs      [V02    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
-;  V03 tmp1         [V03,T02] (  3,  3   )     ref  ->  r15         class-hnd exact single-def "NewObj constructor temp" <System.Collections.Immutable.ImmutableQueue`1+EnumeratorObject[byte]>
+;  V03 tmp1         [V03,T01] (  3,  3   )     ref  ->  r15         class-hnd exact single-def "NewObj constructor temp" <System.Collections.Immutable.ImmutableQueue`1+EnumeratorObject[byte]>
 ;* V04 tmp2         [V04    ] (  0,  0   )     ref  ->  zero-ref    class-hnd exact "Inlining Arg" <System.Collections.Immutable.ImmutableStack`1[byte]>
-;  V05 tmp3         [V05,T03] (  3,  3   )     ref  ->  rbx         class-hnd single-def "Spilling to split statement for tree" <byte[]>
-;  V06 tmp4         [V06,T04] (  3,  1.50)     ref  ->  rax         class-hnd exact "Inline return value spill temp" <System.SZGenericArrayEnumerator`1[byte]>
-;* V07 tmp5         [V07    ] (  0,  0   )     ref  ->  zero-ref    class-hnd single-def "Inline stloc first use temp" <byte[]>
-;  V08 tmp6         [V08,T05] (  3,  1.50)     int  ->  r15         "Inline stloc first use temp"
-;  V09 tmp7         [V09,T01] (  5,  5   )     ref  ->  r14         class-hnd exact single-def "NewObj constructor temp" <System.SZGenericArrayEnumerator`1[byte]>
+;  V05 tmp3         [V05,T02] (  2,  2   )     ref  ->  rdi         single-def "argument with side effect"
 ;
-; Lcl frame size = 8
+; Lcl frame size = 0
 
 G_M6360_IG01:
        push     rbp
        push     r15
-       push     r14
        push     rbx
-       push     rax
-       lea      rbp, [rsp+0x20]
+       lea      rbp, [rsp+0x10]
        mov      rbx, rdi
-						;; size=15 bbWeight=1 PerfScore 5.75
+						;; size=12 bbWeight=1 PerfScore 3.75
 G_M6360_IG02:
        mov      rdi, gword ptr [rbx+0x10]
        cmp      gword ptr [rdi+0x08], 0
-       jne      G_M6360_IG08
-						;; size=15 bbWeight=1 PerfScore 5.00
+       jne      SHORT G_M6360_IG06
+						;; size=11 bbWeight=1 PerfScore 5.00
 G_M6360_IG03:
        mov      rdi, 0xD1FFAB1E      ; global ptr
        test     byte  ptr [rdi], 1
-       je       G_M6360_IG10
-						;; size=19 bbWeight=0.50 PerfScore 1.62
+       je       SHORT G_M6360_IG08
+						;; size=15 bbWeight=0.50 PerfScore 1.62
 G_M6360_IG04:
        mov      rdi, 0xD1FFAB1E      ; data for System.Array+EmptyArray`1[byte]:Value
-       mov      rbx, gword ptr [rdi]
-       mov      r15d, dword ptr [rbx+0x08]
-       test     r15d, r15d
-       jne      SHORT G_M6360_IG06
-       mov      rdi, 0xD1FFAB1E      ; global ptr
-       test     byte  ptr [rdi], 1
-       je       G_M6360_IG11
-						;; size=41 bbWeight=0.50 PerfScore 4.38
+       mov      rdi, gword ptr [rdi]
+       mov      r11, 0xD1FFAB1E      ; code for System.Collections.Generic.IEnumerable`1[byte]:GetEnumerator():System.Collections.Generic.IEnumerator`1[byte]:this
+       cmp      dword ptr [rdi], edi
+						;; size=25 bbWeight=0.50 PerfScore 2.25
 G_M6360_IG05:
-       mov      rdi, 0xD1FFAB1E      ; data for System.SZGenericArrayEnumerator`1[byte]:Empty
-       mov      rax, gword ptr [rdi]
-       jmp      SHORT G_M6360_IG07
-						;; size=15 bbWeight=0.50 PerfScore 2.12
-G_M6360_IG06:
-       mov      rdi, 0xD1FFAB1E      ; System.SZGenericArrayEnumerator`1[byte]
-       call     CORINFO_HELP_NEWSFAST
-       mov      r14, rax
-       mov      dword ptr [r14+0x08], -1
-       mov      dword ptr [r14+0x0C], r15d
-       lea      rdi, bword ptr [r14+0x10]
-       mov      rsi, rbx
-       call     CORINFO_HELP_ASSIGN_REF
-       mov      rax, r14
-						;; size=45 bbWeight=0.50 PerfScore 2.75
-G_M6360_IG07:
-       add      rsp, 8
        pop      rbx
-       pop      r14
        pop      r15
        pop      rbp
-       ret      
-						;; size=11 bbWeight=0.50 PerfScore 1.62
-G_M6360_IG08:
+       tail.jmp [r11]System.Collections.Generic.IEnumerable`1[byte]:GetEnumerator():System.Collections.Generic.IEnumerator`1[byte]:this
+						;; size=7 bbWeight=0.50 PerfScore 1.75
+G_M6360_IG06:
        mov      rdi, 0xD1FFAB1E      ; System.Collections.Immutable.ImmutableQueue`1+EnumeratorObject[byte]
        call     CORINFO_HELP_NEWSFAST
        mov      r15, rax
        lea      rdi, bword ptr [r15+0x08]
        mov      rsi, rbx
        call     CORINFO_HELP_ASSIGN_REF
        mov      rax, r15
 						;; size=33 bbWeight=0.50 PerfScore 1.75
-G_M6360_IG09:
-       add      rsp, 8
+G_M6360_IG07:
        pop      rbx
-       pop      r14
        pop      r15
        pop      rbp
        ret      
-						;; size=11 bbWeight=0.50 PerfScore 1.62
-G_M6360_IG10:
+						;; size=5 bbWeight=0.50 PerfScore 1.25
+G_M6360_IG08:
        mov      rdi, 0xD1FFAB1E      ; System.Array+EmptyArray`1[byte]
        mov      rax, 0xD1FFAB1E      ; code for CORINFO_HELP_GET_GCSTATIC_BASE
        call     [rax]CORINFO_HELP_GET_GCSTATIC_BASE
-       jmp      G_M6360_IG04
-						;; size=27 bbWeight=0 PerfScore 0.00
-G_M6360_IG11:
-       mov      rdi, 0xD1FFAB1E      ; System.SZGenericArrayEnumerator`1[byte]
-       mov      rax, 0xD1FFAB1E      ; code for CORINFO_HELP_GET_GCSTATIC_BASE
-       call     [rax]CORINFO_HELP_GET_GCSTATIC_BASE
-       jmp      G_M6360_IG05
-						;; size=27 bbWeight=0 PerfScore 0.00
+       jmp      SHORT G_M6360_IG04
+						;; size=24 bbWeight=0 PerfScore 0.00
 
-; Total bytes of code 259, prolog size 12, PerfScore 26.62, instruction count 60, allocated bytes for code 259 (MethodHash=2356e727) for method System.Collections.Immutable.ImmutableQueue`1[byte]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[byte]:this (FullOpts)
+; Total bytes of code 132, prolog size 12, PerfScore 17.38, instruction count 34, allocated bytes for code 132 (MethodHash=2356e727) for method System.Collections.Immutable.ImmutableQueue`1[byte]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[byte]:this (FullOpts)
 ; ============================================================

-127 (-49.03 % of base) - System.Collections.Immutable.ImmutableQueue`1[double]:System.Collections.Generic.IEnumerable.GetEnumerator():System.Collections.Generic.IEnumerator`1[double]:this

 ; Assembly listing for method System.Collections.Immutable.ImmutableQueue`1[double]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[double]:this (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
 ; rbp based frame
-; partially interruptible
+; fully interruptible
 ; No PGO data
-; 0 inlinees with PGO data; 9 single block inlinees; 1 inlinees without PGO data
+; 0 inlinees with PGO data; 6 single block inlinees; 0 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 this         [V00,T00] (  4,  3.50)     ref  ->  rbx         this class-hnd single-def <System.Collections.Immutable.ImmutableQueue`1[double]>
 ;* V01 loc0         [V01    ] (  0,  0   )     ref  ->  zero-ref    class-hnd exact <System.Collections.Immutable.ImmutableQueue`1+EnumeratorObject[double]>
 ;# V02 OutArgs      [V02    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
-;  V03 tmp1         [V03,T02] (  3,  3   )     ref  ->  r15         class-hnd exact single-def "NewObj constructor temp" <System.Collections.Immutable.ImmutableQueue`1+EnumeratorObject[double]>
+;  V03 tmp1         [V03,T01] (  3,  3   )     ref  ->  r15         class-hnd exact single-def "NewObj constructor temp" <System.Collections.Immutable.ImmutableQueue`1+EnumeratorObject[double]>
 ;* V04 tmp2         [V04    ] (  0,  0   )     ref  ->  zero-ref    class-hnd exact "Inlining Arg" <System.Collections.Immutable.ImmutableStack`1[double]>
-;  V05 tmp3         [V05,T03] (  3,  3   )     ref  ->  rbx         class-hnd single-def "Spilling to split statement for tree" <double[]>
-;  V06 tmp4         [V06,T04] (  3,  1.50)     ref  ->  rax         class-hnd exact "Inline return value spill temp" <System.SZGenericArrayEnumerator`1[double]>
-;* V07 tmp5         [V07    ] (  0,  0   )     ref  ->  zero-ref    class-hnd single-def "Inline stloc first use temp" <double[]>
-;  V08 tmp6         [V08,T05] (  3,  1.50)     int  ->  r15         "Inline stloc first use temp"
-;  V09 tmp7         [V09,T01] (  5,  5   )     ref  ->  r14         class-hnd exact single-def "NewObj constructor temp" <System.SZGenericArrayEnumerator`1[double]>
+;  V05 tmp3         [V05,T02] (  2,  2   )     ref  ->  rdi         single-def "argument with side effect"
 ;
-; Lcl frame size = 8
+; Lcl frame size = 0
 
 G_M59320_IG01:
        push     rbp
        push     r15
-       push     r14
        push     rbx
-       push     rax
-       lea      rbp, [rsp+0x20]
+       lea      rbp, [rsp+0x10]
        mov      rbx, rdi
-						;; size=15 bbWeight=1 PerfScore 5.75
+						;; size=12 bbWeight=1 PerfScore 3.75
 G_M59320_IG02:
        mov      rdi, gword ptr [rbx+0x10]
        cmp      gword ptr [rdi+0x08], 0
-       jne      G_M59320_IG08
-						;; size=15 bbWeight=1 PerfScore 5.00
+       jne      SHORT G_M59320_IG06
+						;; size=11 bbWeight=1 PerfScore 5.00
 G_M59320_IG03:
        mov      rdi, 0xD1FFAB1E      ; global ptr
        test     byte  ptr [rdi], 1
-       je       G_M59320_IG10
-						;; size=19 bbWeight=0.50 PerfScore 1.62
+       je       SHORT G_M59320_IG08
+						;; size=15 bbWeight=0.50 PerfScore 1.62
 G_M59320_IG04:
        mov      rdi, 0xD1FFAB1E      ; data for System.Array+EmptyArray`1[double]:Value
-       mov      rbx, gword ptr [rdi]
-       mov      r15d, dword ptr [rbx+0x08]
-       test     r15d, r15d
-       jne      SHORT G_M59320_IG06
-       mov      rdi, 0xD1FFAB1E      ; global ptr
-       test     byte  ptr [rdi], 1
-       je       G_M59320_IG11
-						;; size=41 bbWeight=0.50 PerfScore 4.38
+       mov      rdi, gword ptr [rdi]
+       mov      r11, 0xD1FFAB1E      ; code for System.Collections.Generic.IEnumerable`1[double]:GetEnumerator():System.Collections.Generic.IEnumerator`1[double]:this
+       cmp      dword ptr [rdi], edi
+						;; size=25 bbWeight=0.50 PerfScore 2.25
 G_M59320_IG05:
-       mov      rdi, 0xD1FFAB1E      ; data for System.SZGenericArrayEnumerator`1[double]:Empty
-       mov      rax, gword ptr [rdi]
-       jmp      SHORT G_M59320_IG07
-						;; size=15 bbWeight=0.50 PerfScore 2.12
-G_M59320_IG06:
-       mov      rdi, 0xD1FFAB1E      ; System.SZGenericArrayEnumerator`1[double]
-       call     CORINFO_HELP_NEWSFAST
-       mov      r14, rax
-       mov      dword ptr [r14+0x08], -1
-       mov      dword ptr [r14+0x0C], r15d
-       lea      rdi, bword ptr [r14+0x10]
-       mov      rsi, rbx
-       call     CORINFO_HELP_ASSIGN_REF
-       mov      rax, r14
-						;; size=45 bbWeight=0.50 PerfScore 2.75
-G_M59320_IG07:
-       add      rsp, 8
        pop      rbx
-       pop      r14
        pop      r15
        pop      rbp
-       ret      
-						;; size=11 bbWeight=0.50 PerfScore 1.62
-G_M59320_IG08:
+       tail.jmp [r11]System.Collections.Generic.IEnumerable`1[double]:GetEnumerator():System.Collections.Generic.IEnumerator`1[double]:this
+						;; size=7 bbWeight=0.50 PerfScore 1.75
+G_M59320_IG06:
        mov      rdi, 0xD1FFAB1E      ; System.Collections.Immutable.ImmutableQueue`1+EnumeratorObject[double]
        call     CORINFO_HELP_NEWSFAST
        mov      r15, rax
        lea      rdi, bword ptr [r15+0x08]
        mov      rsi, rbx
        call     CORINFO_HELP_ASSIGN_REF
        mov      rax, r15
 						;; size=33 bbWeight=0.50 PerfScore 1.75
-G_M59320_IG09:
-       add      rsp, 8
+G_M59320_IG07:
        pop      rbx
-       pop      r14
        pop      r15
        pop      rbp
        ret      
-						;; size=11 bbWeight=0.50 PerfScore 1.62
-G_M59320_IG10:
+						;; size=5 bbWeight=0.50 PerfScore 1.25
+G_M59320_IG08:
        mov      rdi, 0xD1FFAB1E      ; System.Array+EmptyArray`1[double]
        mov      rax, 0xD1FFAB1E      ; code for CORINFO_HELP_GET_GCSTATIC_BASE
        call     [rax]CORINFO_HELP_GET_GCSTATIC_BASE
-       jmp      G_M59320_IG04
-						;; size=27 bbWeight=0 PerfScore 0.00
-G_M59320_IG11:
-       mov      rdi, 0xD1FFAB1E      ; System.SZGenericArrayEnumerator`1[double]
-       mov      rax, 0xD1FFAB1E      ; code for CORINFO_HELP_GET_GCSTATIC_BASE
-       call     [rax]CORINFO_HELP_GET_GCSTATIC_BASE
-       jmp      G_M59320_IG05
-						;; size=27 bbWeight=0 PerfScore 0.00
+       jmp      SHORT G_M59320_IG04
+						;; size=24 bbWeight=0 PerfScore 0.00
 
-; Total bytes of code 259, prolog size 12, PerfScore 26.62, instruction count 60, allocated bytes for code 259 (MethodHash=c66f1847) for method System.Collections.Immutable.ImmutableQueue`1[double]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[double]:this (FullOpts)
+; Total bytes of code 132, prolog size 12, PerfScore 17.38, instruction count 34, allocated bytes for code 132 (MethodHash=c66f1847) for method System.Collections.Immutable.ImmutableQueue`1[double]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[double]:this (FullOpts)
 ; ============================================================

-127 (-49.03 % of base) - System.Collections.Immutable.ImmutableQueue`1[long]:System.Collections.Generic.IEnumerable.GetEnumerator():System.Collections.Generic.IEnumerator`1[long]:this

 ; Assembly listing for method System.Collections.Immutable.ImmutableQueue`1[long]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[long]:this (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
 ; rbp based frame
-; partially interruptible
+; fully interruptible
 ; No PGO data
-; 0 inlinees with PGO data; 9 single block inlinees; 1 inlinees without PGO data
+; 0 inlinees with PGO data; 6 single block inlinees; 0 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 this         [V00,T00] (  4,  3.50)     ref  ->  rbx         this class-hnd single-def <System.Collections.Immutable.ImmutableQueue`1[long]>
 ;* V01 loc0         [V01    ] (  0,  0   )     ref  ->  zero-ref    class-hnd exact <System.Collections.Immutable.ImmutableQueue`1+EnumeratorObject[long]>
 ;# V02 OutArgs      [V02    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
-;  V03 tmp1         [V03,T02] (  3,  3   )     ref  ->  r15         class-hnd exact single-def "NewObj constructor temp" <System.Collections.Immutable.ImmutableQueue`1+EnumeratorObject[long]>
+;  V03 tmp1         [V03,T01] (  3,  3   )     ref  ->  r15         class-hnd exact single-def "NewObj constructor temp" <System.Collections.Immutable.ImmutableQueue`1+EnumeratorObject[long]>
 ;* V04 tmp2         [V04    ] (  0,  0   )     ref  ->  zero-ref    class-hnd exact "Inlining Arg" <System.Collections.Immutable.ImmutableStack`1[long]>
-;  V05 tmp3         [V05,T03] (  3,  3   )     ref  ->  rbx         class-hnd single-def "Spilling to split statement for tree" <long[]>
-;  V06 tmp4         [V06,T04] (  3,  1.50)     ref  ->  rax         class-hnd exact "Inline return value spill temp" <System.SZGenericArrayEnumerator`1[long]>
-;* V07 tmp5         [V07    ] (  0,  0   )     ref  ->  zero-ref    class-hnd single-def "Inline stloc first use temp" <long[]>
-;  V08 tmp6         [V08,T05] (  3,  1.50)     int  ->  r15         "Inline stloc first use temp"
-;  V09 tmp7         [V09,T01] (  5,  5   )     ref  ->  r14         class-hnd exact single-def "NewObj constructor temp" <System.SZGenericArrayEnumerator`1[long]>
+;  V05 tmp3         [V05,T02] (  2,  2   )     ref  ->  rdi         single-def "argument with side effect"
 ;
-; Lcl frame size = 8
+; Lcl frame size = 0
 
 G_M39384_IG01:
        push     rbp
        push     r15
-       push     r14
        push     rbx
-       push     rax
-       lea      rbp, [rsp+0x20]
+       lea      rbp, [rsp+0x10]
        mov      rbx, rdi
-						;; size=15 bbWeight=1 PerfScore 5.75
+						;; size=12 bbWeight=1 PerfScore 3.75
 G_M39384_IG02:
        mov      rdi, gword ptr [rbx+0x10]
        cmp      gword ptr [rdi+0x08], 0
-       jne      G_M39384_IG08
-						;; size=15 bbWeight=1 PerfScore 5.00
+       jne      SHORT G_M39384_IG06
+						;; size=11 bbWeight=1 PerfScore 5.00
 G_M39384_IG03:
        mov      rdi, 0xD1FFAB1E      ; global ptr
        test     byte  ptr [rdi], 1
-       je       G_M39384_IG10
-						;; size=19 bbWeight=0.50 PerfScore 1.62
+       je       SHORT G_M39384_IG08
+						;; size=15 bbWeight=0.50 PerfScore 1.62
 G_M39384_IG04:
        mov      rdi, 0xD1FFAB1E      ; data for System.Array+EmptyArray`1[long]:Value
-       mov      rbx, gword ptr [rdi]
-       mov      r15d, dword ptr [rbx+0x08]
-       test     r15d, r15d
-       jne      SHORT G_M39384_IG06
-       mov      rdi, 0xD1FFAB1E      ; global ptr
-       test     byte  ptr [rdi], 1
-       je       G_M39384_IG11
-						;; size=41 bbWeight=0.50 PerfScore 4.38
+       mov      rdi, gword ptr [rdi]
+       mov      r11, 0xD1FFAB1E      ; code for System.Collections.Generic.IEnumerable`1[long]:GetEnumerator():System.Collections.Generic.IEnumerator`1[long]:this
+       cmp      dword ptr [rdi], edi
+						;; size=25 bbWeight=0.50 PerfScore 2.25
 G_M39384_IG05:
-       mov      rdi, 0xD1FFAB1E      ; data for System.SZGenericArrayEnumerator`1[long]:Empty
-       mov      rax, gword ptr [rdi]
-       jmp      SHORT G_M39384_IG07
-						;; size=15 bbWeight=0.50 PerfScore 2.12
-G_M39384_IG06:
-       mov      rdi, 0xD1FFAB1E      ; System.SZGenericArrayEnumerator`1[long]
-       call     CORINFO_HELP_NEWSFAST
-       mov      r14, rax
-       mov      dword ptr [r14+0x08], -1
-       mov      dword ptr [r14+0x0C], r15d
-       lea      rdi, bword ptr [r14+0x10]
-       mov      rsi, rbx
-       call     CORINFO_HELP_ASSIGN_REF
-       mov      rax, r14
-						;; size=45 bbWeight=0.50 PerfScore 2.75
-G_M39384_IG07:
-       add      rsp, 8
        pop      rbx
-       pop      r14
        pop      r15
        pop      rbp
-       ret      
-						;; size=11 bbWeight=0.50 PerfScore 1.62
-G_M39384_IG08:
+       tail.jmp [r11]System.Collections.Generic.IEnumerable`1[long]:GetEnumerator():System.Collections.Generic.IEnumerator`1[long]:this
+						;; size=7 bbWeight=0.50 PerfScore 1.75
+G_M39384_IG06:
        mov      rdi, 0xD1FFAB1E      ; System.Collections.Immutable.ImmutableQueue`1+EnumeratorObject[long]
        call     CORINFO_HELP_NEWSFAST
        mov      r15, rax
        lea      rdi, bword ptr [r15+0x08]
        mov      rsi, rbx
        call     CORINFO_HELP_ASSIGN_REF
        mov      rax, r15
 						;; size=33 bbWeight=0.50 PerfScore 1.75
-G_M39384_IG09:
-       add      rsp, 8
+G_M39384_IG07:
        pop      rbx
-       pop      r14
        pop      r15
        pop      rbp
        ret      
-						;; size=11 bbWeight=0.50 PerfScore 1.62
-G_M39384_IG10:
+						;; size=5 bbWeight=0.50 PerfScore 1.25
+G_M39384_IG08:
        mov      rdi, 0xD1FFAB1E      ; System.Array+EmptyArray`1[long]
        mov      rax, 0xD1FFAB1E      ; code for CORINFO_HELP_GET_GCSTATIC_BASE
        call     [rax]CORINFO_HELP_GET_GCSTATIC_BASE
-       jmp      G_M39384_IG04
-						;; size=27 bbWeight=0 PerfScore 0.00
-G_M39384_IG11:
-       mov      rdi, 0xD1FFAB1E      ; System.SZGenericArrayEnumerator`1[long]
-       mov      rax, 0xD1FFAB1E      ; code for CORINFO_HELP_GET_GCSTATIC_BASE
-       call     [rax]CORINFO_HELP_GET_GCSTATIC_BASE
-       jmp      G_M39384_IG05
-						;; size=27 bbWeight=0 PerfScore 0.00
+       jmp      SHORT G_M39384_IG04
+						;; size=24 bbWeight=0 PerfScore 0.00
 
-; Total bytes of code 259, prolog size 12, PerfScore 26.62, instruction count 60, allocated bytes for code 259 (MethodHash=1f336627) for method System.Collections.Immutable.ImmutableQueue`1[long]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[long]:this (FullOpts)
+; Total bytes of code 132, prolog size 12, PerfScore 17.38, instruction count 34, allocated bytes for code 132 (MethodHash=1f336627) for method System.Collections.Immutable.ImmutableQueue`1[long]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[long]:this (FullOpts)
 ; ============================================================

-127 (-49.03 % of base) - System.Collections.Immutable.ImmutableQueue`1[short]:System.Collections.Generic.IEnumerable.GetEnumerator():System.Collections.Generic.IEnumerator`1[short]:this

 ; Assembly listing for method System.Collections.Immutable.ImmutableQueue`1[short]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[short]:this (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
 ; rbp based frame
-; partially interruptible
+; fully interruptible
 ; No PGO data
-; 0 inlinees with PGO data; 9 single block inlinees; 1 inlinees without PGO data
+; 0 inlinees with PGO data; 6 single block inlinees; 0 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 this         [V00,T00] (  4,  3.50)     ref  ->  rbx         this class-hnd single-def <System.Collections.Immutable.ImmutableQueue`1[short]>
 ;* V01 loc0         [V01    ] (  0,  0   )     ref  ->  zero-ref    class-hnd exact <System.Collections.Immutable.ImmutableQueue`1+EnumeratorObject[short]>
 ;# V02 OutArgs      [V02    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
-;  V03 tmp1         [V03,T02] (  3,  3   )     ref  ->  r15         class-hnd exact single-def "NewObj constructor temp" <System.Collections.Immutable.ImmutableQueue`1+EnumeratorObject[short]>
+;  V03 tmp1         [V03,T01] (  3,  3   )     ref  ->  r15         class-hnd exact single-def "NewObj constructor temp" <System.Collections.Immutable.ImmutableQueue`1+EnumeratorObject[short]>
 ;* V04 tmp2         [V04    ] (  0,  0   )     ref  ->  zero-ref    class-hnd exact "Inlining Arg" <System.Collections.Immutable.ImmutableStack`1[short]>
-;  V05 tmp3         [V05,T03] (  3,  3   )     ref  ->  rbx         class-hnd single-def "Spilling to split statement for tree" <short[]>
-;  V06 tmp4         [V06,T04] (  3,  1.50)     ref  ->  rax         class-hnd exact "Inline return value spill temp" <System.SZGenericArrayEnumerator`1[short]>
-;* V07 tmp5         [V07    ] (  0,  0   )     ref  ->  zero-ref    class-hnd single-def "Inline stloc first use temp" <short[]>
-;  V08 tmp6         [V08,T05] (  3,  1.50)     int  ->  r15         "Inline stloc first use temp"
-;  V09 tmp7         [V09,T01] (  5,  5   )     ref  ->  r14         class-hnd exact single-def "NewObj constructor temp" <System.SZGenericArrayEnumerator`1[short]>
+;  V05 tmp3         [V05,T02] (  2,  2   )     ref  ->  rdi         single-def "argument with side effect"
 ;
-; Lcl frame size = 8
+; Lcl frame size = 0
 
 G_M2776_IG01:
        push     rbp
        push     r15
-       push     r14
        push     rbx
-       push     rax
-       lea      rbp, [rsp+0x20]
+       lea      rbp, [rsp+0x10]
        mov      rbx, rdi
-						;; size=15 bbWeight=1 PerfScore 5.75
+						;; size=12 bbWeight=1 PerfScore 3.75
 G_M2776_IG02:
        mov      rdi, gword ptr [rbx+0x10]
        cmp      gword ptr [rdi+0x08], 0
-       jne      G_M2776_IG08
-						;; size=15 bbWeight=1 PerfScore 5.00
+       jne      SHORT G_M2776_IG06
+						;; size=11 bbWeight=1 PerfScore 5.00
 G_M2776_IG03:
        mov      rdi, 0xD1FFAB1E      ; global ptr
        test     byte  ptr [rdi], 1
-       je       G_M2776_IG10
-						;; size=19 bbWeight=0.50 PerfScore 1.62
+       je       SHORT G_M2776_IG08
+						;; size=15 bbWeight=0.50 PerfScore 1.62
 G_M2776_IG04:
        mov      rdi, 0xD1FFAB1E      ; data for System.Array+EmptyArray`1[short]:Value
-       mov      rbx, gword ptr [rdi]
-       mov      r15d, dword ptr [rbx+0x08]
-       test     r15d, r15d
-       jne      SHORT G_M2776_IG06
-       mov      rdi, 0xD1FFAB1E      ; global ptr
-       test     byte  ptr [rdi], 1
-       je       G_M2776_IG11
-						;; size=41 bbWeight=0.50 PerfScore 4.38
+       mov      rdi, gword ptr [rdi]
+       mov      r11, 0xD1FFAB1E      ; code for System.Collections.Generic.IEnumerable`1[short]:GetEnumerator():System.Collections.Generic.IEnumerator`1[short]:this
+       cmp      dword ptr [rdi], edi
+						;; size=25 bbWeight=0.50 PerfScore 2.25
 G_M2776_IG05:
-       mov      rdi, 0xD1FFAB1E      ; data for System.SZGenericArrayEnumerator`1[short]:Empty
-       mov      rax, gword ptr [rdi]
-       jmp      SHORT G_M2776_IG07
-						;; size=15 bbWeight=0.50 PerfScore 2.12
-G_M2776_IG06:
-       mov      rdi, 0xD1FFAB1E      ; System.SZGenericArrayEnumerator`1[short]
-       call     CORINFO_HELP_NEWSFAST
-       mov      r14, rax
-       mov      dword ptr [r14+0x08], -1
-       mov      dword ptr [r14+0x0C], r15d
-       lea      rdi, bword ptr [r14+0x10]
-       mov      rsi, rbx
-       call     CORINFO_HELP_ASSIGN_REF
-       mov      rax, r14
-						;; size=45 bbWeight=0.50 PerfScore 2.75
-G_M2776_IG07:
-       add      rsp, 8
        pop      rbx
-       pop      r14
        pop      r15
        pop      rbp
-       ret      
-						;; size=11 bbWeight=0.50 PerfScore 1.62
-G_M2776_IG08:
+       tail.jmp [r11]System.Collections.Generic.IEnumerable`1[short]:GetEnumerator():System.Collections.Generic.IEnumerator`1[short]:this
+						;; size=7 bbWeight=0.50 PerfScore 1.75
+G_M2776_IG06:
        mov      rdi, 0xD1FFAB1E      ; System.Collections.Immutable.ImmutableQueue`1+EnumeratorObject[short]
        call     CORINFO_HELP_NEWSFAST
        mov      r15, rax
        lea      rdi, bword ptr [r15+0x08]
        mov      rsi, rbx
        call     CORINFO_HELP_ASSIGN_REF
        mov      rax, r15
 						;; size=33 bbWeight=0.50 PerfScore 1.75
-G_M2776_IG09:
-       add      rsp, 8
+G_M2776_IG07:
        pop      rbx
-       pop      r14
        pop      r15
        pop      rbp
        ret      
-						;; size=11 bbWeight=0.50 PerfScore 1.62
-G_M2776_IG10:
+						;; size=5 bbWeight=0.50 PerfScore 1.25
+G_M2776_IG08:
        mov      rdi, 0xD1FFAB1E      ; System.Array+EmptyArray`1[short]
        mov      rax, 0xD1FFAB1E      ; code for CORINFO_HELP_GET_GCSTATIC_BASE
        call     [rax]CORINFO_HELP_GET_GCSTATIC_BASE
-       jmp      G_M2776_IG04
-						;; size=27 bbWeight=0 PerfScore 0.00
-G_M2776_IG11:
-       mov      rdi, 0xD1FFAB1E      ; System.SZGenericArrayEnumerator`1[short]
-       mov      rax, 0xD1FFAB1E      ; code for CORINFO_HELP_GET_GCSTATIC_BASE
-       call     [rax]CORINFO_HELP_GET_GCSTATIC_BASE
-       jmp      G_M2776_IG05
-						;; size=27 bbWeight=0 PerfScore 0.00
+       jmp      SHORT G_M2776_IG04
+						;; size=24 bbWeight=0 PerfScore 0.00
 
-; Total bytes of code 259, prolog size 12, PerfScore 26.62, instruction count 60, allocated bytes for code 259 (MethodHash=043df527) for method System.Collections.Immutable.ImmutableQueue`1[short]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[short]:this (FullOpts)
+; Total bytes of code 132, prolog size 12, PerfScore 17.38, instruction count 34, allocated bytes for code 132 (MethodHash=043df527) for method System.Collections.Immutable.ImmutableQueue`1[short]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[short]:this (FullOpts)
 ; ============================================================

-127 (-49.80 % of base) - System.Collections.Immutable.ImmutableStack`1[byte]:System.Collections.Generic.IEnumerable.GetEnumerator():System.Collections.Generic.IEnumerator`1[byte]:this

 ; Assembly listing for method System.Collections.Immutable.ImmutableStack`1[byte]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[byte]:this (FullOpts)
 ; Emitting BLENDED_CODE for x64 + VEX + EVEX on Unix
 ; FullOpts code
 ; optimized code
 ; rbp based frame
-; partially interruptible
+; fully interruptible
 ; No PGO data
-; 0 inlinees with PGO data; 8 single block inlinees; 2 inlinees without PGO data
+; 0 inlinees with PGO data; 5 single block inlinees; 1 inlinees without PGO data
 ; Final local variable assignments
 ;
 ;  V00 this         [V00,T00] (  4,  3.50)     ref  ->  rbx         this class-hnd single-def <System.Collections.Immutable.ImmutableStack`1[byte]>
 ;* V01 loc0         [V01    ] (  0,  0   )     ref  ->  zero-ref    class-hnd exact <System.Collections.Immutable.ImmutableStack`1+EnumeratorObject[byte]>
 ;# V02 OutArgs      [V02    ] (  1,  1   )  struct ( 0) [rsp+0x00]  do-not-enreg[XS] addr-exposed "OutgoingArgSpace" <Empty>
-;  V03 tmp1         [V03,T02] (  3,  3   )     ref  ->  r15         class-hnd exact single-def "NewObj constructor temp" <System.Collections.Immutable.ImmutableStack`1+EnumeratorObject[byte]>
-;  V04 tmp2         [V04,T03] (  3,  3   )     ref  ->  rbx         class-hnd single-def "Spilling to split statement for tree" <byte[]>
-;  V05 tmp3         [V05,T04] (  3,  1.50)     ref  ->  rax         class-hnd exact "Inline return value spill temp" <System.SZGenericArrayEnumerator`1[byte]>
-;* V06 tmp4         [V06    ] (  0,  0   )     ref  ->  zero-ref    class-hnd single-def "Inline stloc first use temp" <byte[]>
-;  V07 tmp5         [V07,T05] (  3,  1.50)     int  ->  r15         "Inline stloc first use temp"
-;  V08 tmp6         [V08,T01] (  5,  5   )     ref  ->  r14         class-hnd exact single-def "NewObj constructor temp" <System.SZGenericArrayEnumerator`1[byte]>
+;  V03 tmp1         [V03,T01] (  3,  3   )     ref  ->  r15         class-hnd exact single-def "NewObj constructor temp" <System.Collections.Immutable.ImmutableStack`1+EnumeratorObject[byte]>
+;  V04 tmp2         [V04,T02] (  2,  2   )     ref  ->  rdi         single-def "argument with side effect"
 ;
-; Lcl frame size = 8
+; Lcl frame size = 0
 
 G_M45095_IG01:
        push     rbp
        push     r15
-       push     r14
        push     rbx
-       push     rax
-       lea      rbp, [rsp+0x20]
+       lea      rbp, [rsp+0x10]
        mov      rbx, rdi
-						;; size=15 bbWeight=1 PerfScore 5.75
+						;; size=12 bbWeight=1 PerfScore 3.75
 G_M45095_IG02:
        cmp      gword ptr [rbx+0x08], 0
-       jne      G_M45095_IG08
-						;; size=11 bbWeight=1 PerfScore 3.00
+       jne      SHORT G_M45095_IG06
+						;; size=7 bbWeight=1 PerfScore 3.00
 G_M45095_IG03:
        mov      rdi, 0xD1FFAB1E      ; global ptr
        test     byte  ptr [rdi], 1
-       je       G_M45095_IG10
-						;; size=19 bbWeight=0.50 PerfScore 1.62
+       je       SHORT G_M45095_IG08
+						;; size=15 bbWeight=0.50 PerfScore 1.62
 G_M45095_IG04:
        mov      rdi, 0xD1FFAB1E      ; data for System.Array+EmptyArray`1[byte]:Value
-       mov      rbx, gword ptr [rdi]
-       mov      r15d, dword ptr [rbx+0x08]
-       test     r15d, r15d
-       jne      SHORT G_M45095_IG06
-       mov      rdi, 0xD1FFAB1E      ; global ptr
-       test     byte  ptr [rdi], 1
-       je       G_M45095_IG11
-						;; size=41 bbWeight=0.50 PerfScore 4.38
+       mov      rdi, gword ptr [rdi]
+       mov      r11, 0xD1FFAB1E      ; code for System.Collections.Generic.IEnumerable`1[byte]:GetEnumerator():System.Collections.Generic.IEnumerator`1[byte]:this
+       cmp      dword ptr [rdi], edi
+						;; size=25 bbWeight=0.50 PerfScore 2.25
 G_M45095_IG05:
-       mov      rdi, 0xD1FFAB1E      ; data for System.SZGenericArrayEnumerator`1[byte]:Empty
-       mov      rax, gword ptr [rdi]
-       jmp      SHORT G_M45095_IG07
-						;; size=15 bbWeight=0.50 PerfScore 2.12
-G_M45095_IG06:
-       mov      rdi, 0xD1FFAB1E      ; System.SZGenericArrayEnumerator`1[byte]
-       call     CORINFO_HELP_NEWSFAST
-       mov      r14, rax
-       mov      dword ptr [r14+0x08], -1
-       mov      dword ptr [r14+0x0C], r15d
-       lea      rdi, bword ptr [r14+0x10]
-       mov      rsi, rbx
-       call     CORINFO_HELP_ASSIGN_REF
-       mov      rax, r14
-						;; size=45 bbWeight=0.50 PerfScore 2.75
-G_M45095_IG07:
-       add      rsp, 8
        pop      rbx
-       pop      r14
        pop      r15
        pop      rbp
-       ret      
-						;; size=11 bbWeight=0.50 PerfScore 1.62
-G_M45095_IG08:
+       tail.jmp [r11]System.Collections.Generic.IEnumerable`1[byte]:GetEnumerator():System.Collections.Generic.IEnumerator`1[byte]:this
+						;; size=7 bbWeight=0.50 PerfScore 1.75
+G_M45095_IG06:
        mov      rdi, 0xD1FFAB1E      ; System.Collections.Immutable.ImmutableStack`1+EnumeratorObject[byte]
        call     CORINFO_HELP_NEWSFAST
        mov      r15, rax
        lea      rdi, bword ptr [r15+0x08]
        mov      rsi, rbx
        call     CORINFO_HELP_ASSIGN_REF
        mov      rax, r15
 						;; size=33 bbWeight=0.50 PerfScore 1.75
-G_M45095_IG09:
-       add      rsp, 8
+G_M45095_IG07:
        pop      rbx
-       pop      r14
        pop      r15
        pop      rbp
        ret      
-						;; size=11 bbWeight=0.50 PerfScore 1.62
-G_M45095_IG10:
+						;; size=5 bbWeight=0.50 PerfScore 1.25
+G_M45095_IG08:
        mov      rdi, 0xD1FFAB1E      ; System.Array+EmptyArray`1[byte]
        mov      rax, 0xD1FFAB1E      ; code for CORINFO_HELP_GET_GCSTATIC_BASE
        call     [rax]CORINFO_HELP_GET_GCSTATIC_BASE
-       jmp      G_M45095_IG04
-						;; size=27 bbWeight=0 PerfScore 0.00
-G_M45095_IG11:
-       mov      rdi, 0xD1FFAB1E      ; System.SZGenericArrayEnumerator`1[byte]
-       mov      rax, 0xD1FFAB1E      ; code for CORINFO_HELP_GET_GCSTATIC_BASE
-       call     [rax]CORINFO_HELP_GET_GCSTATIC_BASE
-       jmp      G_M45095_IG05
-						;; size=27 bbWeight=0 PerfScore 0.00
+       jmp      SHORT G_M45095_IG04
+						;; size=24 bbWeight=0 PerfScore 0.00
 
-; Total bytes of code 255, prolog size 12, PerfScore 24.62, instruction count 59, allocated bytes for code 255 (MethodHash=252b4fd8) for method System.Collections.Immutable.ImmutableStack`1[byte]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[byte]:this (FullOpts)
+; Total bytes of code 128, prolog size 12, PerfScore 15.38, instruction count 33, allocated bytes for code 128 (MethodHash=252b4fd8) for method System.Collections.Immutable.ImmutableStack`1[byte]:System.Collections.Generic.IEnumerable<T>.GetEnumerator():System.Collections.Generic.IEnumerator`1[byte]:this (FullOpts)
 ; ============================================================

Larger list of diffs: https://gist.github.com/MihuBot/bfd4cb68fe3a9f89947c9e01c2a78d64

[MihuBot]

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