On Jan 7, 2011, at 10:46 AM, Nick Kew wrote: > On Fri, 7 Jan 2011 15:59:26 +0100 > "Plüm, Rüdiger, VF-Group" <ruediger.pl...@vodafone.com> wrote: > >>> The obvious question would be whether the "q" flag affects your >>> observations. But the detailed bug report suggests that's unlikely. >> >> Isn't it the case that "q" is the default for one substitution rule >> and for more than one it is no longer? >> That would explain the different behaviour. > > Bah. I'd misread Test 2 in the report - saw just the one rule. > > I guess it just boils down to the logic of when folding does or > doesn't get optimised out. >
I think it's just the nature of the beast... at least, the nature of the design where if we need to be able to scan between buckets, we need to flatten and that takes time and space... lots o' space.
