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* [Bug tree-optimization/101706] New: bool0^bool1^1 -> bool0 == bool1
@ 2021-07-31 19:44 pinskia at gcc dot gnu.org
2021-08-17 19:09 ` [Bug tree-optimization/101706] " pinskia at gcc dot gnu.org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-07-31 19:44 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101706
Bug ID: 101706
Summary: bool0^bool1^1 -> bool0 == bool1
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Keywords: missed-optimization
Severity: enhancement
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: pinskia at gcc dot gnu.org
Target Milestone: ---
void fa(bool &a, bool &b, bool &c)
{
c= a==b;
}
void fb(bool &a, bool &b, bool &c)
{
int t = (a^b);
c= (t^1);
}
I don't know how often this shows up but I am putting this here for
completeness.
^ permalink raw reply [flat|nested] 5+ messages in thread* [Bug tree-optimization/101706] bool0^bool1^1 -> bool0 == bool1
2021-07-31 19:44 [Bug tree-optimization/101706] New: bool0^bool1^1 -> bool0 == bool1 pinskia at gcc dot gnu.org
@ 2021-08-17 19:09 ` pinskia at gcc dot gnu.org
2022-08-10 11:48 ` vanyacpp at gmail dot com
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-08-17 19:09 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101706
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Ever confirmed|0 |1
Status|UNCONFIRMED |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |pinskia at gcc dot gnu.org
Last reconfirmed| |2021-08-17
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Mine.
^ permalink raw reply [flat|nested] 5+ messages in thread* [Bug tree-optimization/101706] bool0^bool1^1 -> bool0 == bool1
2021-07-31 19:44 [Bug tree-optimization/101706] New: bool0^bool1^1 -> bool0 == bool1 pinskia at gcc dot gnu.org
2021-08-17 19:09 ` [Bug tree-optimization/101706] " pinskia at gcc dot gnu.org
@ 2022-08-10 11:48 ` vanyacpp at gmail dot com
2022-10-22 2:13 ` pinskia at gcc dot gnu.org
2022-11-26 16:47 ` pinskia at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: vanyacpp at gmail dot com @ 2022-08-10 11:48 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101706
Ivan Sorokin <vanyacpp at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |vanyacpp at gmail dot com
--- Comment #2 from Ivan Sorokin <vanyacpp at gmail dot com> ---
This issue was fixed in PR106379 by Richard Biener.
After https://gcc.gnu.org/g:375668e0508fbe173af1ed519d8ae2b79f388d94 for both
fa and fb we have:
fa(bool&, bool&, bool&):
movzx eax, BYTE PTR [rsi]
cmp BYTE PTR [rdi], al
sete BYTE PTR [rdx]
ret
fb(bool&, bool&, bool&):
movzx eax, BYTE PTR [rsi]
cmp BYTE PTR [rdi], al
sete BYTE PTR [rdx]
ret
I think the issue can be closed now.
^ permalink raw reply [flat|nested] 5+ messages in thread* [Bug tree-optimization/101706] bool0^bool1^1 -> bool0 == bool1
2021-07-31 19:44 [Bug tree-optimization/101706] New: bool0^bool1^1 -> bool0 == bool1 pinskia at gcc dot gnu.org
2021-08-17 19:09 ` [Bug tree-optimization/101706] " pinskia at gcc dot gnu.org
2022-08-10 11:48 ` vanyacpp at gmail dot com
@ 2022-10-22 2:13 ` pinskia at gcc dot gnu.org
2022-11-26 16:47 ` pinskia at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: pinskia at gcc dot gnu.org @ 2022-10-22 2:13 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101706
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Target Milestone|--- |13.0
Status|ASSIGNED |RESOLVED
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Fixed.
^ permalink raw reply [flat|nested] 5+ messages in thread* [Bug tree-optimization/101706] bool0^bool1^1 -> bool0 == bool1
2021-07-31 19:44 [Bug tree-optimization/101706] New: bool0^bool1^1 -> bool0 == bool1 pinskia at gcc dot gnu.org
` (2 preceding siblings ...)
2022-10-22 2:13 ` pinskia at gcc dot gnu.org
@ 2022-11-26 16:47 ` pinskia at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: pinskia at gcc dot gnu.org @ 2022-11-26 16:47 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101706
--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
r13-1779-g375668e0508fbe
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2022-11-26 16:47 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2021-07-31 19:44 [Bug tree-optimization/101706] New: bool0^bool1^1 -> bool0 == bool1 pinskia at gcc dot gnu.org
2021-08-17 19:09 ` [Bug tree-optimization/101706] " pinskia at gcc dot gnu.org
2022-08-10 11:48 ` vanyacpp at gmail dot com
2022-10-22 2:13 ` pinskia at gcc dot gnu.org
2022-11-26 16:47 ` pinskia at gcc dot gnu.org
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