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* [Bug rtl-optimization/68274] __builtin_unreachable pessimizes code
[not found] <bug-68274-4@http.gcc.gnu.org/bugzilla/>
@ 2021-08-21 20:01 ` pinskia at gcc dot gnu.org
2022-03-16 13:01 ` rguenth at gcc dot gnu.org
` (2 subsequent siblings)
3 siblings, 0 replies; 4+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-08-21 20:01 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68274
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Depends on| |102008
Severity|normal |enhancement
Component|tree-optimization |rtl-optimization
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Note I think the underlying issue is recorded in PR 102008.
Also note aarch64 produces a csel for both case.
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102008
[Bug 102008] [12 Regression] no cmov generated for loads next to each other
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug rtl-optimization/68274] __builtin_unreachable pessimizes code
[not found] <bug-68274-4@http.gcc.gnu.org/bugzilla/>
2021-08-21 20:01 ` [Bug rtl-optimization/68274] __builtin_unreachable pessimizes code pinskia at gcc dot gnu.org
@ 2022-03-16 13:01 ` rguenth at gcc dot gnu.org
2023-06-07 3:13 ` pinskia at gcc dot gnu.org
2023-06-07 13:21 ` matt at godbolt dot org
3 siblings, 0 replies; 4+ messages in thread
From: rguenth at gcc dot gnu.org @ 2022-03-16 13:01 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68274
Bug 68274 depends on bug 102008, which changed state.
Bug 102008 Summary: [12 Regression] no cmov generated for loads next to each other
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102008
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug rtl-optimization/68274] __builtin_unreachable pessimizes code
[not found] <bug-68274-4@http.gcc.gnu.org/bugzilla/>
2021-08-21 20:01 ` [Bug rtl-optimization/68274] __builtin_unreachable pessimizes code pinskia at gcc dot gnu.org
2022-03-16 13:01 ` rguenth at gcc dot gnu.org
@ 2023-06-07 3:13 ` pinskia at gcc dot gnu.org
2023-06-07 13:21 ` matt at godbolt dot org
3 siblings, 0 replies; 4+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-06-07 3:13 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68274
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |13.0
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Fixed in GCC 13 by vrp2 removing the __builtin_unreachable at that point and
allowing a later phiopt to do the job.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug rtl-optimization/68274] __builtin_unreachable pessimizes code
[not found] <bug-68274-4@http.gcc.gnu.org/bugzilla/>
` (2 preceding siblings ...)
2023-06-07 3:13 ` pinskia at gcc dot gnu.org
@ 2023-06-07 13:21 ` matt at godbolt dot org
3 siblings, 0 replies; 4+ messages in thread
From: matt at godbolt dot org @ 2023-06-07 13:21 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68274
--- Comment #5 from Matt Godbolt <matt at godbolt dot org> ---
Amazing: thank you Andrew!
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2023-06-07 13:21 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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[not found] <bug-68274-4@http.gcc.gnu.org/bugzilla/>
2021-08-21 20:01 ` [Bug rtl-optimization/68274] __builtin_unreachable pessimizes code pinskia at gcc dot gnu.org
2022-03-16 13:01 ` rguenth at gcc dot gnu.org
2023-06-07 3:13 ` pinskia at gcc dot gnu.org
2023-06-07 13:21 ` matt at godbolt dot org
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