https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90001
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target|powerpc-*-linux-gnu |powerpc-*-linux-gnu
| |powerpc64le-*-*
Status|UNCONFIRMED |NEW
Last reconfirmed| |2019-04-08
Component|target |rtl-optimization
Ever confirmed|0 |1
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed also on ppc64le (thus likely on any doloop capable target which SMS
needs). Note that SMS is unmaintained.
The issue is that set_recurrence_length is called with a graph with
18662 back-arcs and the longest_simple_path does work on the order
of the graph size because it uses sbitmaps. Using bitmaps doesn't
help here though. I guess the underlying algorithm for
set_recurrence_length simply isn't scalable and needs to be replaced.
