I think -funroll-all-loops adds run-time loop unrolling, which may or may not speed up code execution. At least, that's what I've always deciphered it to be.
However, I am not an expert :) -Gabe On Wed, 27 Feb 2002, Peter Jay Salzman wrote: > hi everyone, > > -funroll-loops > Perform the optimization of loop unrolling. This > is only done for loops whose number of iterations > can be determined at compile time or run time. > > -funroll-all-loops > Perform the optimization of loop unrolling. This > is done for all loops. This usually makes programs > run more slowly. > > ok, -funroll-all-loops usually makes programs run more slowly. it also > clearly makes the executable larger. > > so what exactly are we optimizing here? > > pete > _______________________________________________ > vox-tech mailing list > [EMAIL PROTECTED] > http://lists.lugod.org/mailman/listinfo/vox-tech > _______________________________________________ vox-tech mailing list [EMAIL PROTECTED] http://lists.lugod.org/mailman/listinfo/vox-tech
