https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70102
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |missed-optimization
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2016-03-07
CC|richard.guenther at gmail dot com |
Blocks| |53947
Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot
gnu.org
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed and mine. I suppose taking into account operation kind of defs when
computing rank() may work here. But in general the vectorizer doesn't consider
re-associating things when building the SLP tree.
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53947
[Bug 53947] [meta-bug] vectorizer missed-optimizations
