https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58372
--- Comment #30 from Uroš Bizjak <ubizjak at gmail dot com> ---
(In reply to Jakub Jelinek from comment #29)
> > Let's ask Jakub about asan, if it is possible to move generation of the call
> > after the function is already expanded to RTL.
>
> I'm afraid no.
Hm...
... maybe we could go with following patch:
+ if (SUPPORTS_STACK_ALIGNMENT)
+ {
+ if (preferred_stack_boundary > crtl->stack_alignment_estimated)
+ crtl->stack_alignment_estimated = preferred_stack_boundary;
+ if (preferred_stack_boundary > crtl->stack_alignment_needed)
+ crtl->stack_alignment_needed = preferred_stack_boundary;
+ }
This means that for functions, emitted through emit_library_call, stack won't
be realigned. This would cure the assert (and would follow a bit more
expand_stack_alignment from cfgrtl.c).
