https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69140
--- Comment #3 from Justas L <bucaneer at gmail dot com> --- Created attachment 37222 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37222&action=edit testcase2 The previous testcase fails only with -O2 or higher; this one fails with -O1: gcc -c -O1 -mincoming-stack-boundary=3 chain.i