https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88533
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 #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
So we do rely on loop header copying (our single "loop rotation" pass) to hoist
invariant conditions out of loops.
As said determining whether a condition is invariant or not is a bit awkward
at the point of CH. But reverting the revision in question and
re-instantiating the effect on the added testcase by adding heuristic to
should_duplicate_loop_header_p should hopefully work.
