https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85531
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |missed-optimization
Status|UNCONFIRMED |NEW
Last reconfirmed| |2018-04-26
CC| |rguenth at gcc dot gnu.org
Version|unknown |9.0
Ever confirmed|0 |1
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Thanks. So -floop-nest-optimize (graphite) doens't do anything here, it
detects the two loops just fine but simply doesn't do any transform. Probably
similar to the interchange failure we miss to provide it with spatial
constraints to minimize or so.
The loop distribution pass is presented with a CFG and IL that should be indeed
trivially analyzable (if we solve the dependence analysis issue).
