On 22/02/2009, at 7:51 PM, Erick Tryzelaar wrote: > On Sat, Feb 21, 2009 at 9:46 PM, john skaller > <skal...@users.sourceforge.net> wrote: >> Check generated code to see if the usage of these is inlined. >> Also check if the nested procedures slow things down. >> No stack frames should be created: loop_ is tail rec. > > Yep, it was completely inlined and turned into a bunch of gotos. I > don't really see anything obvious. The algorithm itself is pretty > straightforward. I'm not sure if there's really that much we could do > to that g++ isn't able to do. Here's what was generated. Can you see > anything missing?
> > bailout = 4.0; > /*Eager inline call to loop_<5210>*/ > zi = 0.0; > zr = 0.0; > i = 1; > _6468:; > /*Lazy inline call to le<1333>*/ > /*Lazy inline call to gt<1327>*/ > /*begin match*/ > /*match case 1:|case 1*/ > if(!(!(PTF max_iterations < i ) ==1) ) goto _6470; > /*begin match*/ > /*match case 1:zr2*/ > zr2 = zr * zr ; > /*begin match*/ > /*match case 1:zi2*/ > zi2 = zi * zi ; > /*Lazy inline call to le<1333>*/ > /*Lazy inline call to gt<1327>*/ > /*begin match*/ > /*match case 1:|case 1*/ > if(!(!(bailout < zi2 + zr2 ) ==1) ) goto _6469; This would be faster if bailout was a macro which was replaced by 4.0. But not by much .. > /*parallel assignment*/ > zi = zr * zi * 2.0 + (static_cast<double>(x)) / 40.0 ; > i = i + 1 ; > zr = zr2 - zi2 + ((static_cast<double>(y)) / 40.0 - 0.5 ) ; > goto _6468; -- john skaller skal...@users.sourceforge.net ------------------------------------------------------------------------------ Open Source Business Conference (OSBC), March 24-25, 2009, San Francisco, CA -OSBC tackles the biggest issue in open source: Open Sourcing the Enterprise -Strategies to boost innovation and cut costs with open source participation -Receive a $600 discount off the registration fee with the source code: SFAD http://p.sf.net/sfu/XcvMzF8H _______________________________________________ Felix-language mailing list Felix-language@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/felix-language
