https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82159
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Author: jakub Date: Wed Sep 27 14:19:57 2017 New Revision: 253230 URL: https://gcc.gnu.org/viewcvs?rev=253230&root=gcc&view=rev Log: PR c++/82159 * gimplify.c (gimplify_modify_expr): Don't optimize away zero sized lhs from calls if the lhs has addressable type. * g++.dg/opt/pr82159.C: New test. Added: trunk/gcc/testsuite/g++.dg/opt/pr82159.C Modified: trunk/gcc/ChangeLog trunk/gcc/gimplify.c trunk/gcc/testsuite/ChangeLog