https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95018
--- Comment #39 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-10 branch has been updated by Jiu Fu Guo <guoji...@gcc.gnu.org>: https://gcc.gnu.org/g:60bd3f20baebeeddd60f8a2b85927e7da7c6016e commit r10-8327-g60bd3f20baebeeddd60f8a2b85927e7da7c6016e Author: guojiufu <guoji...@linux.ibm.com> Date: Thu May 28 13:42:23 2020 +0800 Introduce flag_cunroll_grow_size for cunroll and avoid enable it at -O2 Currently GIMPLE complete unroller(cunroll) is checking flag_unroll_loops and flag_peel_loops to see if allow size growth. Beside affects curnoll, flag_unroll_loops also controls RTL unroler. To have more freedom to control cunroll and RTL unroller, this patch introduces flag_cunroll_grow_size. With this patch, we can control cunroll and RTL unroller indepently. And enable flag_cunroll_grow_size only if -funroll-loops or -fpeel-loops or -O3 is specified explicitly. gcc/ChangeLog 2020-06-19 Jiufu Guo <guoji...@linux.ibm.com> PR target/95018 * common.opt (flag_cunroll_grow_size): New flag. * toplev.c (process_options): Set flag_cunroll_grow_size. * tree-ssa-loop-ivcanon.c (pass_complete_unroll::execute): Use flag_cunroll_grow_size. * config/rs6000/rs6000.c (rs6000_option_override_internal): Override flag_cunroll_grow_size.
