On Sun, Dec 1, 2013 at 1:29 PM, Richard Sandiford <rdsandif...@googlemail.com> wrote: > FWIW, here are some numbers comparing the times various > --enable-checking=release versions of cc1plus take to compile > a set of .ii inputs at -O2. The versions are: > > (a) wide-int r205263, where the last merge was made > (b) current wide-int with the patches I've posted applied on top > (c) trunk r205261, the last wide-int merge point > > The .ii files were from the (c) version of fold-const.c, cp/parser.c > and insn-recog.c. The times are means from 7 runs with the standard > deviation in brackets. (The results seem too noisy to just quote > the minimum.) > > fold-const.c cp/parser.c insn-recog.c > (a) 5.9204 (0.04578) 4.8329 (0.05010) 28.0811 (0.29829) > (b) 5.8783 (0.02788) 4.7865 (0.02841) 25.7909 (0.31766) > (c) 5.8507 (0.03329) 4.7756 (0.03786) 25.8563 (0.30302) > > So (b) seems measurably faster than (a), but the differences between > (b) and (c) are within 0.5% at face value and might just be noise.
Nice work! Richard. > I can do another run once Kenny's finished the patches to shrink the > size of widest_int. > > Thanks, > Richard
