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From: "already5chosen at yahoo dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/105617] [12/13 Regression] Slp is maybe too aggressive in some/many cases
Date: Mon, 16 May 2022 12:38:06 +0000	[thread overview]
Message-ID: <bug-105617-4-sXIEjXr1CG@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-105617-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105617

--- Comment #4 from Michael_S <already5chosen at yahoo dot com> ---
(In reply to Andrew Pinski from comment #1)
> This is just the vectorizer still being too aggressive right before a return.
> It is a cost model issue and it might not really be an issue in the final
> code just microbenchmarks.

BTW, Andrew, in one of the older related threads you made a very wise comment:
"Maybe even generic builtins/internal functions for this case even as clang has
__builtin_addc, etc."

IMHO, that is not only necessary, but long overdue.

  parent reply	other threads:[~2022-05-16 12:38 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-16 12:08 [Bug target/105617] New: Regression in code generation for _addcarry_u64() already5chosen at yahoo dot com
2022-05-16 12:13 ` [Bug target/105617] [12/13 regressi] Slp is maybe too aggressive in some/many cases pinskia at gcc dot gnu.org
2022-05-16 12:14 ` pinskia at gcc dot gnu.org
2022-05-16 12:15 ` rguenth at gcc dot gnu.org
2022-05-16 12:38 ` already5chosen at yahoo dot com [this message]
2022-05-16 13:02 ` [Bug target/105617] [12/13 Regression] " already5chosen at yahoo dot com
2022-05-16 14:08 ` already5chosen at yahoo dot com
2022-05-17  2:47 ` crazylht at gmail dot com
2022-05-17  3:29 ` crazylht at gmail dot com
2022-05-17  3:37 ` crazylht at gmail dot com
2022-05-17  6:48 ` rguenth at gcc dot gnu.org
2022-05-17  9:17 ` already5chosen at yahoo dot com
2022-05-17  9:25 ` already5chosen at yahoo dot com
2022-05-19  8:05 ` crazylht at gmail dot com
2022-07-26 11:22 ` rguenth at gcc dot gnu.org
2022-07-26 11:22 ` rguenth at gcc dot gnu.org
2022-07-29 13:21 ` already5chosen at yahoo dot com
2023-05-08 12:24 ` [Bug target/105617] [12/13/14 " rguenth at gcc dot gnu.org
2023-06-01  7:58 ` slash.tmp at free dot fr
2023-06-07 23:16 ` already5chosen at yahoo dot com
2023-06-13 14:54 ` slash.tmp at free dot fr
2023-06-16 14:56 ` already5chosen at yahoo dot com

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