https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85414
--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Author: jakub Date: Wed Apr 25 13:10:01 2018 New Revision: 259649 URL: https://gcc.gnu.org/viewcvs?rev=259649&root=gcc&view=rev Log: PR middle-end/85414 * simplify-rtx.c (simplify_unary_operation_1) <case SIGN_EXTEND, case ZERO_EXTEND>: Pass SUBREG_REG (op) rather than op to gen_lowpart_no_emit. Modified: trunk/gcc/ChangeLog trunk/gcc/expr.c trunk/gcc/simplify-rtx.c