public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug tree-optimization/91965] missing simplification for (C - a) << N
[not found] <bug-91965-4@http.gcc.gnu.org/bugzilla/>
@ 2021-08-10 19:01 ` pinskia at gcc dot gnu.org
0 siblings, 0 replies; only message in thread
From: pinskia at gcc dot gnu.org @ 2021-08-10 19:01 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91965
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Severity|normal |enhancement
Last reconfirmed|2019-10-04 00:00:00 |2021-8-10
--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Note I noticed clang does not vectorize bar because they convert (1048575 - a)
<< 44 to (a * -17592186044416ull) -17592186044416.
So right now at least we vectorize the loop.
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2021-08-10 19:01 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
[not found] <bug-91965-4@http.gcc.gnu.org/bugzilla/>
2021-08-10 19:01 ` [Bug tree-optimization/91965] missing simplification for (C - a) << N pinskia at gcc dot gnu.org
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).