Speed up ValueType.Equals (#69768)

Inspired by #69723 `SpanHelpers` didn't exist when this part of NativeAOT was written (dotnet/corert#5436 (comment)).
dotnet · May 25, 2022 · 0dba0ee · 0dba0ee
1 parent 0df1214
commit 0dba0ee
Showing 1 changed file with 1 addition and 5 deletions.
diff --git a/src/coreclr/nativeaot/System.Private.CoreLib/src/System/ValueType.cs b/src/coreclr/nativeaot/System.Private.CoreLib/src/System/ValueType.cs
@@ -64,11 +64,7 @@ public override bool Equals([NotNullWhen(true)] object? obj)
 
                 // Compare the memory
                 int valueTypeSize = (int)this.GetEETypePtr().ValueTypeSize;
-                for (int i = 0; i < valueTypeSize; i++)
-                {
-                    if (Unsafe.Add(ref thisRawData, i) != Unsafe.Add(ref thatRawData, i))
-                        return false;
-                }
+                return SpanHelpers.SequenceEqual(ref thisRawData, ref thatRawData, valueTypeSize);
             }
             else
             {