El 04/05/12 11:53, Miroslav Lichvar escribió: > On Fri, May 04, 2012 at 11:13:05AM -0400, Cristian Rodríguez wrote: >> Both Erick and I did already submitted patches to the tree that do just >> exactly what your flac-1.2.1-bitreader.patch intended.. please checkout >> current GIT tree. > > The most interesting part of the patch is the rewrite of the > FLAC__bitreader_read_rice_signed_block function, which in the git repo > seems to have only couple lines changed since 1.2.1.
Ah ok, I will check it out ! > > BTW, how much faster is the code with the clz builtin? If the > architecture doesn't have the instruction, will be the gcc code as > fast as the original code? I do not have access to a host that does not have either bsr, clz, lzcnt, cntlz or ctlz. if you do, plz share your results ;) I have no idea what code will be generated in exotic archs, in x86 it translates to bsr ^ 31U and in the others supported to a single instruction. _______________________________________________ flac-dev mailing list flac-dev@xiph.org http://lists.xiph.org/mailman/listinfo/flac-dev
