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* [Bug tree-optimization/89163] Missed optimization: sar and shr equivalent for non-negative numbers
[not found] <bug-89163-4@http.gcc.gnu.org/bugzilla/>
@ 2021-08-10 4:50 ` pinskia at gcc dot gnu.org
2024-03-20 12:42 ` xry111 at gcc dot gnu.org
` (2 subsequent siblings)
3 siblings, 0 replies; 4+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-08-10 4:50 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89163
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Severity|normal |enhancement
Last reconfirmed|2019-02-04 00:00:00 |2021-8-9
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug tree-optimization/89163] Missed optimization: sar and shr equivalent for non-negative numbers
[not found] <bug-89163-4@http.gcc.gnu.org/bugzilla/>
2021-08-10 4:50 ` [Bug tree-optimization/89163] Missed optimization: sar and shr equivalent for non-negative numbers pinskia at gcc dot gnu.org
@ 2024-03-20 12:42 ` xry111 at gcc dot gnu.org
2024-03-20 12:44 ` xry111 at gcc dot gnu.org
2024-03-20 14:07 ` Explorer09 at gmail dot com
3 siblings, 0 replies; 4+ messages in thread
From: xry111 at gcc dot gnu.org @ 2024-03-20 12:42 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89163
Xi Ruoyao <xry111 at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |Explorer09 at gmail dot com
--- Comment #2 from Xi Ruoyao <xry111 at gcc dot gnu.org> ---
*** Bug 114406 has been marked as a duplicate of this bug. ***
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug tree-optimization/89163] Missed optimization: sar and shr equivalent for non-negative numbers
[not found] <bug-89163-4@http.gcc.gnu.org/bugzilla/>
2021-08-10 4:50 ` [Bug tree-optimization/89163] Missed optimization: sar and shr equivalent for non-negative numbers pinskia at gcc dot gnu.org
2024-03-20 12:42 ` xry111 at gcc dot gnu.org
@ 2024-03-20 12:44 ` xry111 at gcc dot gnu.org
2024-03-20 14:07 ` Explorer09 at gmail dot com
3 siblings, 0 replies; 4+ messages in thread
From: xry111 at gcc dot gnu.org @ 2024-03-20 12:44 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89163
Xi Ruoyao <xry111 at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |xry111 at gcc dot gnu.org
--- Comment #3 from Xi Ruoyao <xry111 at gcc dot gnu.org> ---
Maybe we can at least perform the canonization for shifting a constant as
114406 requests.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug tree-optimization/89163] Missed optimization: sar and shr equivalent for non-negative numbers
[not found] <bug-89163-4@http.gcc.gnu.org/bugzilla/>
` (2 preceding siblings ...)
2024-03-20 12:44 ` xry111 at gcc dot gnu.org
@ 2024-03-20 14:07 ` Explorer09 at gmail dot com
3 siblings, 0 replies; 4+ messages in thread
From: Explorer09 at gmail dot com @ 2024-03-20 14:07 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89163
--- Comment #4 from Kang-Che Sung <Explorer09 at gmail dot com> ---
(In reply to Xi Ruoyao from comment #2)
> *** Bug 114406 has been marked as a duplicate of this bug. ***
I can't say bug 114406 is an exact duplicate of this one. Although my report
mainly addresses right shift, I also mentioned division, modulo and
multiplication. These can also be optimized where the signedness of the
operations do not matter.
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2024-03-20 14:07 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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[not found] <bug-89163-4@http.gcc.gnu.org/bugzilla/>
2021-08-10 4:50 ` [Bug tree-optimization/89163] Missed optimization: sar and shr equivalent for non-negative numbers pinskia at gcc dot gnu.org
2024-03-20 12:42 ` xry111 at gcc dot gnu.org
2024-03-20 12:44 ` xry111 at gcc dot gnu.org
2024-03-20 14:07 ` Explorer09 at gmail dot com
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