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* [Bug target/42200] Suboptimal optimization: after x / 2 carry flag == x & 1
[not found] <bug-42200-4@http.gcc.gnu.org/bugzilla/>
@ 2021-08-08 20:36 ` pinskia at gcc dot gnu.org
0 siblings, 0 replies; 2+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-08-08 20:36 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=42200
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
GCC 8+ produces this for both:
cmpl $1, %edi
jbe .L1
testb $1, %dil
je .L4
.L1:
ret
.L4:
shrl %edi
jmp a
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug target/42200] Suboptimal optimization: after x / 2 carry flag == x & 1
2009-11-27 21:18 [Bug rtl-optimization/42200] New: " vda dot linux at googlemail dot com
@ 2009-11-27 22:14 ` rguenth at gcc dot gnu dot org
0 siblings, 0 replies; 2+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2009-11-27 22:14 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from rguenth at gcc dot gnu dot org 2009-11-27 22:14 -------
Confirmed.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Severity|normal |enhancement
Status|UNCONFIRMED |NEW
Component|rtl-optimization |target
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2009-11-27 22:14:22
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42200
^ permalink raw reply [flat|nested] 2+ messages in thread
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[not found] <bug-42200-4@http.gcc.gnu.org/bugzilla/>
2021-08-08 20:36 ` [Bug target/42200] Suboptimal optimization: after x / 2 carry flag == x & 1 pinskia at gcc dot gnu.org
2009-11-27 21:18 [Bug rtl-optimization/42200] New: " vda dot linux at googlemail dot com
2009-11-27 22:14 ` [Bug target/42200] " rguenth at gcc dot gnu dot org
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