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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/113458] Missed SLP for reduction of multiplication/addition with promotion
Date: Fri, 19 Jan 2024 21:41:37 +0000	[thread overview]
Message-ID: <bug-113458-4-oM2rOgjVne@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-113458-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113458

--- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I have a patch which implements V4QI for many operations (extends and
widden_<su>sum) (though I need to fix the cost model).

I am able to get:
```
        sshll   v30.4h, v30.8b, #0
        smull   v31.4s, v31.4h, v30.4h
        addv    s31, v31.4s

```

But the load is still using inserts and tbl. I have not figured out why though.

  parent reply	other threads:[~2024-01-19 21:41 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-01-17 20:29 [Bug tree-optimization/113458] New: " pinskia at gcc dot gnu.org
2024-01-17 21:08 ` [Bug tree-optimization/113458] " pinskia at gcc dot gnu.org
2024-01-18  5:13 ` liuhongt at gcc dot gnu.org
2024-01-18  8:05 ` rguenth at gcc dot gnu.org
2024-01-18  8:10 ` rguenth at gcc dot gnu.org
2024-01-18  8:36 ` [Bug target/113458] " pinskia at gcc dot gnu.org
2024-01-19  0:33 ` liuhongt at gcc dot gnu.org
2024-01-19 21:41 ` pinskia at gcc dot gnu.org [this message]
2024-01-19 22:56 ` pinskia at gcc dot gnu.org
2024-01-20  0:41 ` pinskia at gcc dot gnu.org
2024-01-20  8:09 ` pinskia at gcc dot gnu.org
2024-01-21 22:14 ` pinskia at gcc dot gnu.org

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