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* [Bug tree-optimization/111924] New: Look into using movement_possibility (in tree-ssa-loop-im.cc) for empty_bb_or_one_feeding_into_p for phi-opt
@ 2023-10-23 0:28 pinskia at gcc dot gnu.org
2023-10-23 0:29 ` [Bug tree-optimization/111924] " pinskia at gcc dot gnu.org
0 siblings, 1 reply; 2+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-10-23 0:28 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111924
Bug ID: 111924
Summary: Look into using movement_possibility (in
tree-ssa-loop-im.cc) for
empty_bb_or_one_feeding_into_p for phi-opt
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Keywords: internal-improvement
Severity: enhancement
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: pinskia at gcc dot gnu.org
Target Milestone: ---
I noticed that movement_possibility/movement_possibility_1 does almost the same
as what some of the checks inside empty_bb_or_one_feeding_into_p does. It seems
like it might be a good idea to combine the 2 into one function and use that in
both PHI-OPT and Loop-im.
Note phi-opt does allow unconditionally a few known builtins/internal functions
too which seems like could benifit IM too.
Oh movement_possibility now disallows some movements of shifts which definitely
could be improved and it is definitely something which PHI-OPT should use too.
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug tree-optimization/111924] Look into using movement_possibility (in tree-ssa-loop-im.cc) for empty_bb_or_one_feeding_into_p for phi-opt
2023-10-23 0:28 [Bug tree-optimization/111924] New: Look into using movement_possibility (in tree-ssa-loop-im.cc) for empty_bb_or_one_feeding_into_p for phi-opt pinskia at gcc dot gnu.org
@ 2023-10-23 0:29 ` pinskia at gcc dot gnu.org
0 siblings, 0 replies; 2+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-10-23 0:29 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111924
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed| |2023-10-23
Status|UNCONFIRMED |ASSIGNED
Ever confirmed|0 |1
Assignee|unassigned at gcc dot gnu.org |pinskia at gcc dot gnu.org
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Mine. I am filing this more so I can look into doing this in a few weeks.
^ permalink raw reply [flat|nested] 2+ messages in thread
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2023-10-23 0:28 [Bug tree-optimization/111924] New: Look into using movement_possibility (in tree-ssa-loop-im.cc) for empty_bb_or_one_feeding_into_p for phi-opt pinskia at gcc dot gnu.org
2023-10-23 0:29 ` [Bug tree-optimization/111924] " pinskia at gcc dot gnu.org
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