[Bug bootstrap/77359] [7 Regression] AIX bootstrap failure due to alignment of stack pointer + STACK_DYNAMIC_OFFSET

[dje at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77359

--- Comment #17 from David Edelsohn <dje at gcc dot gnu.org> ---
Created attachment 39891
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=39891&action=edit
Experimental patch

If this patch is correct, then there is a general problem for Linux also.