https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78468
--- Comment #10 from Rainer Orth <ro at gcc dot gnu.org> --- Created attachment 40141 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40141&action=edit reduced testcase and assembler output I've managed at least some reduction of the testcase: as you can see, one stack allocation is reduced, the other has vanished completely. Rainer