https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79663
--- Comment #5 from Jeffrey A. Law <law at gcc dot gnu.org> --- Author: law Date: Thu Feb 23 22:02:01 2017 New Revision: 245689 URL: https://gcc.gnu.org/viewcvs?rev=245689&root=gcc&view=rev Log: 2017-01-21 Bin Cheng <bin.ch...@arm.com> PR tree-optimization/79663 * tree-predcom.c (combine_chains): Process refs in reverse order only for ZERO length chains, and add explaining comment. Modified: trunk/gcc/ChangeLog trunk/gcc/tree-predcom.c