https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67145
--- Comment #16 from Richard Henderson <rth at gcc dot gnu.org> --- Author: rth Date: Wed Mar 2 21:09:54 2016 New Revision: 233916 URL: https://gcc.gnu.org/viewcvs?rev=233916&root=gcc&view=rev Log: PR rtl-opt/67145 * simplify-rtx.c (simplify_plus_minus): Allow reassoc without simplification when all args are positive non-fixed registers. Modified: trunk/gcc/ChangeLog trunk/gcc/simplify-rtx.c