Turning on -funbox-small-strict-fields by default in GHC 7.8

[Johan Tibell]

On Thu, Apr 25, 2013 at 1:41 PM, Edward Z. Yang <ezyang at mit.edu> wrote:

> SGTM.  Actually, I think actually it should be quite simple to argue that
> there is no way for this change to degrade performance.
>

I think you could make up a case where it is a loss. It would boil down to
repeated reboxing of a value pulled out of a strict field. In practice I
think it's pretty hard. What did you have in mind?

-- Johan
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