Hello Donald, Monday, November 27, 2006, 12:51:07 PM, you wrote:
Does this thread on haskell-cafe, about getting better bit shifting results, indicate we should be tweaking the default unfolding-use threshold? Do the recent bit shifting/inlining patches improve things?
can you please look how much size of ghc.exe will be changed? i never build it from sources but assume that -O2 used here? ghc is a large executable and this should give us idea about how much size of typical executable may be changed in this case. of course, libraries should be also rebuild according to "Secrets of the Glasgow Haskell Compiler inliner" http://www.research.microsoft.com/~simonpj/Papers/inlining/inline-jfp.ps.gz threshold was selected to not too increase executable sizes, but give close to maximum possible change improvement. may be times changed now, may be such change will improve only rare cases and please - if you will try to recompile ghc - look also at improvements in its speed -- Best regards, Bulat mailto:Bulat.Ziganshin@gmail.com