ARMeilleure: Hash _data pointer instead of value for Operand (#4156)
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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1 changed files with 1 additions and 8 deletions
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@ -378,14 +378,7 @@ namespace ARMeilleure.IntermediateRepresentation
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public override int GetHashCode()
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{
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if (Kind == OperandKind.LocalVariable)
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{
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return base.GetHashCode();
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}
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else
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{
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return (int)Value ^ ((int)Kind << 16) ^ ((int)Type << 20);
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}
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return ((ulong)_data).GetHashCode();
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}
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public bool Equals(Operand operand)
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