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* [Bug tree-optimization/87543] Inconsistency in noticing a constant result rather than emitting code for a loop
[not found] <bug-87543-4@http.gcc.gnu.org/bugzilla/>
@ 2021-12-13 1:17 ` pinskia at gcc dot gnu.org
2021-12-13 1:18 ` pinskia at gcc dot gnu.org
` (3 subsequent siblings)
4 siblings, 0 replies; 5+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-12-13 1:17 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87543
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Severity|normal |enhancement
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug tree-optimization/87543] Inconsistency in noticing a constant result rather than emitting code for a loop
[not found] <bug-87543-4@http.gcc.gnu.org/bugzilla/>
2021-12-13 1:17 ` [Bug tree-optimization/87543] Inconsistency in noticing a constant result rather than emitting code for a loop pinskia at gcc dot gnu.org
@ 2021-12-13 1:18 ` pinskia at gcc dot gnu.org
2021-12-17 4:29 ` pinskia at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 5+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-12-13 1:18 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87543
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
See Also| |https://gcc.gnu.org/bugzill
| |a/show_bug.cgi?id=97077
--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
PR 97077 has a similar issue.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug tree-optimization/87543] Inconsistency in noticing a constant result rather than emitting code for a loop
[not found] <bug-87543-4@http.gcc.gnu.org/bugzilla/>
2021-12-13 1:17 ` [Bug tree-optimization/87543] Inconsistency in noticing a constant result rather than emitting code for a loop pinskia at gcc dot gnu.org
2021-12-13 1:18 ` pinskia at gcc dot gnu.org
@ 2021-12-17 4:29 ` pinskia at gcc dot gnu.org
2021-12-17 4:34 ` pinskia at gcc dot gnu.org
2021-12-27 4:11 ` pinskia at gcc dot gnu.org
4 siblings, 0 replies; 5+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-12-17 4:29 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87543
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |lh_mouse at 126 dot com
--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
*** Bug 87987 has been marked as a duplicate of this bug. ***
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug tree-optimization/87543] Inconsistency in noticing a constant result rather than emitting code for a loop
[not found] <bug-87543-4@http.gcc.gnu.org/bugzilla/>
` (2 preceding siblings ...)
2021-12-17 4:29 ` pinskia at gcc dot gnu.org
@ 2021-12-17 4:34 ` pinskia at gcc dot gnu.org
2021-12-27 4:11 ` pinskia at gcc dot gnu.org
4 siblings, 0 replies; 5+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-12-17 4:34 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87543
--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
As I mentioned in PR 87987:
So I think LLVM's unrolling notices the load will become constant and the whole
induction variable basically goes away for sum.
I also said something similar in
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97077#c3 too.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug tree-optimization/87543] Inconsistency in noticing a constant result rather than emitting code for a loop
[not found] <bug-87543-4@http.gcc.gnu.org/bugzilla/>
` (3 preceding siblings ...)
2021-12-17 4:34 ` pinskia at gcc dot gnu.org
@ 2021-12-27 4:11 ` pinskia at gcc dot gnu.org
4 siblings, 0 replies; 5+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-12-27 4:11 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87543
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |DUPLICATE
--- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Dup of bug 85747.
*** This bug has been marked as a duplicate of bug 85747 ***
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2021-12-27 4:11 UTC | newest]
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[not found] <bug-87543-4@http.gcc.gnu.org/bugzilla/>
2021-12-13 1:17 ` [Bug tree-optimization/87543] Inconsistency in noticing a constant result rather than emitting code for a loop pinskia at gcc dot gnu.org
2021-12-13 1:18 ` pinskia at gcc dot gnu.org
2021-12-17 4:29 ` pinskia at gcc dot gnu.org
2021-12-17 4:34 ` pinskia at gcc dot gnu.org
2021-12-27 4:11 ` pinskia at gcc dot gnu.org
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