var x = 0; for(i <- 1 to 100000000) /* x += */ i Uncommenting makes this about 4x faster. More expensive to discard a result than add it?!
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@propensive It's probably boxing the Int in the slower case.
@ijuma Sounds like a useful thing to do right before it gets thrown away! ;) Shouldn't DCE pick this up?
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@propensive scalac can be a bit thick at times. I haven't checked this particular case though. -
@ijuma I'll let it off, just this once. On balance it's quite smart... ;)
End of conversation
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