https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91580
--- Comment #13 from Richard Biener <rguenth at gcc dot gnu.org> --- Author: rguenth Date: Thu Aug 29 10:30:48 2019 New Revision: 275030 URL: https://gcc.gnu.org/viewcvs?rev=275030&root=gcc&view=rev Log: 2019-08-29 Richard Biener <rguent...@suse.de> PR bootstrap/91580 * config/i386/i386-features.c (general_scalar_chain::convert_insn): Do not emit scalar copies for debug-insns, instead replace their uses with the reg copy used in the chain or reset them if there is a reaching definition outside of the chain as well. Modified: trunk/gcc/ChangeLog trunk/gcc/config/i386/i386-features.c
