https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98863
--- Comment #37 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-10 branch has been updated by Richard Biener <rgue...@gcc.gnu.org>: https://gcc.gnu.org/g:ab5b267e1e2d29c4f1acf39af85e247894193168 commit r10-9338-gab5b267e1e2d29c4f1acf39af85e247894193168 Author: Richard Biener <rguent...@suse.de> Date: Mon Feb 1 09:18:43 2021 +0100 rtl-optimization/98863 - prune RD with LIVE in STV This sets DF_RD_PRUNE_DEAD_DEFS like all other uses of the UD/DU chain problems which makes the RD problem consume a lot less memory. 2021-02-01 Richard Biener <rguent...@suse.de> PR rtl-optimization/98863 * config/i386/i386-features.c (convert_scalars_to_vector): Set DF_RD_PRUNE_DEAD_DEFS. (cherry picked from commit 972918eea873f8b1663151316c4b3aee7ae028e2)