------- Comment #28 from jakub at gcc dot gnu dot org 2010-05-25 10:39 ------- Created an attachment (id=20741) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20741&action=view) gcc46-pr41371.patch
Another small optimization. At least on this testcase in 80% the s1node and s2var->var_part[0].loc_chain chains contain the same locations in the same order. So, if we avoid calling find_loc_in_1pdv in that case and only start calling it when they differ, the testcase can be speeded up slightly. With --enable-checking=release cc1plus the difference is: real 4m52.484s user 4m51.991s sys 0m0.446s to: real 3m38.218s user 3m37.641s sys 0m0.383s I'm going to bootstrap/regtest it now with additional statistics gathering on how many find_loc_in_1pdv calls it can avoid. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41371
