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* [Bug tree-optimization/88387] Possible code optimization when right shift count >= width of type
[not found] <bug-88387-4@http.gcc.gnu.org/bugzilla/>
@ 2021-07-24 10:15 ` pinskia at gcc dot gnu.org
2023-08-05 3:34 ` pinskia at gcc dot gnu.org
1 sibling, 0 replies; 2+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-07-24 10:15 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88387
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Severity|normal |enhancement
Component|middle-end |tree-optimization
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug tree-optimization/88387] Possible code optimization when right shift count >= width of type
[not found] <bug-88387-4@http.gcc.gnu.org/bugzilla/>
2021-07-24 10:15 ` [Bug tree-optimization/88387] Possible code optimization when right shift count >= width of type pinskia at gcc dot gnu.org
@ 2023-08-05 3:34 ` pinskia at gcc dot gnu.org
1 sibling, 0 replies; 2+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-08-05 3:34 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88387
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |INVALID
Target Milestone|--- |13.0
Status|NEW |RESOLVED
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Starting in GCC 13 we remove the branch fully and assume n >> 222 is always 0.
In ethread:
Checking profitability of path (backwards): bb:2 (3 insns) bb:0
Control statement insns: 2
Overall: 1 insns
Registering killing_def (path_oracle) _1
Checking profitability of path (backwards):
[1] Registering jump thread: (0, 2) incoming edge; (2, 4) nocopy;
path: 0->2->4 SUCCESS
^ permalink raw reply [flat|nested] 2+ messages in thread
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[not found] <bug-88387-4@http.gcc.gnu.org/bugzilla/>
2021-07-24 10:15 ` [Bug tree-optimization/88387] Possible code optimization when right shift count >= width of type pinskia at gcc dot gnu.org
2023-08-05 3:34 ` pinskia at gcc dot gnu.org
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