https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104960
--- Comment #2 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:3a7ba8fd0cda387809e4902328af2473662b6a4a commit r12-7687-g3a7ba8fd0cda387809e4902328af2473662b6a4a Author: Richard Biener <rguent...@suse.de> Date: Thu Mar 17 08:10:59 2022 +0100 tree-optimization/104960 - unsplit edges after late sinking Something went wrong when testing the earlier patch to move the late sinking to before the late phiopt for PR102008. The following makes sure to unsplit edges after the late sinking since the split edges confuse the following phiopt leading to missed optimizations. I've went for a new pass parameter for this to avoid changing the CFG after the early sinking pass at this point. 2022-03-17 Richard Biener <rguent...@suse.de> PR tree-optimization/104960 * passes.def: Add pass parameter to pass_sink_code, mark last one to unsplit edges. * tree-ssa-sink.cc (pass_sink_code::set_pass_param): New. (pass_sink_code::execute): Always execute TODO_cleanup_cfg when we need to unsplit edges. * gcc.dg/gimplefe-37.c: Adjust to allow either the true or false edge to have a forwarder.
