https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111821
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot
gnu.org
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
So the issue is that we expand 'v' as a register despite of the large
out-of-bound access. With -O0 we expand it to (stack) memory and use memcpy as
fallback.
I have a patch.
