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ARMeilleure: Hash _data pointer instead of value for Operand (#4156)

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I noticed a weirdly high cost for dictionary accesses from MarkLabel etc. Turns out that the hash code was always the same for labels, so the whole point of having a dictionary was missed and it was putting everything in the same bucket. I made it always hash the _data pointer as that's a good source of identifiable and "random" data.
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riperiperi 2022-12-21 01:28:18 +00:00 committed by GitHub
parent 6268170a10
commit c200a7b7c6
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1 changed files with 1 additions and 8 deletions
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ARMeilleure/IntermediateRepresentation/Operand.cs
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@ -378,14 +378,7 @@ namespace ARMeilleure.IntermediateRepresentation
public override int GetHashCode() public override int GetHashCode()
{ {
if (Kind == OperandKind.LocalVariable) return ((ulong)_data).GetHashCode();
{
return base.GetHashCode();
}
else
{
return (int)Value ^ ((int)Kind << 16) ^ ((int)Type << 20);
}
} }
public bool Equals(Operand operand) public bool Equals(Operand operand)