https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94392
--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Richard Biener <rgue...@gcc.gnu.org>: https://gcc.gnu.org/g:75efe9cb1f8938a713ce540dc3b27bc2afcd3fae commit r10-7522-g75efe9cb1f8938a713ce540dc3b27bc2afcd3fae Author: Richard Biener <rguent...@suse.de> Date: Thu Apr 2 10:46:20 2020 +0200 c/94392 - only enable -ffinite-loops for C++ This does away with enabling -ffinite-loops at -O2+ for all languages and instead enables it selectively for C++ only. It also makes -ffinite-loops loop-private at CFG construction time fixing correctness issues with inlining. 2020-04-02 Richard Biener <rguent...@suse.de> PR c/94392 * c-opts.c (c_common_post_options): Enable -ffinite-loops for -O2 and C++11 or newer. * common.opt (ffinite-loops): Initialize to zero. * opts.c (default_options_table): Remove OPT_ffinite_loops entry. * cfgloop.h (loop::finite_p): New member. * cfgloopmanip.c (copy_loop_info): Copy finite_p. * ipa-icf-gimple.c (func_checker::compare_loops): Compare finite_p. * lto-streamer-in.c (input_cfg): Stream finite_p. * lto-streamer-out.c (output_cfg): Likewise. * tree-cfg.c (replace_loop_annotate): Initialize finite_p from flag_finite_loops at CFG build time. * tree-ssa-loop-niter.c (finite_loop_p): Check the loops finite_p flag instead of flag_finite_loops. * doc/invoke.texi (ffinite-loops): Adjust documentation of default setting. * gcc.dg/torture/pr94392.c: New testcase.
