https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55023
--- Comment #15 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Author: jakub Date: Thu Jan 8 21:29:44 2015 New Revision: 219361 URL: https://gcc.gnu.org/viewcvs?rev=219361&root=gcc&view=rev Log: PR target/55023 PR middle-end/64388 * dse.c (struct insn_info): Mention frame_read set also before reload for tail calls on some targets. (scan_insn): Revert 2014-12-22 change. Set frame_read also before reload for tail calls if HARD_FRAME_POINTER_IS_ARG_POINTER. Call add_wild_read instead of add_non_frame_wild_read for non-const/memset tail calls after reload. Modified: trunk/gcc/ChangeLog trunk/gcc/dse.c