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* [Bug target/80874] gcc does not emit cmov for minmax
[not found] <bug-80874-4@http.gcc.gnu.org/bugzilla/>
@ 2021-07-19 1:51 ` pinskia at gcc dot gnu.org
2023-07-21 7:40 ` [Bug tree-optimization/80874] " pinskia at gcc dot gnu.org
1 sibling, 0 replies; 2+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-07-19 1:51 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80874
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target| |x86_64-linux-gnu
Component|tree-optimization |target
Keywords| |missed-optimization
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
aarch64 produces the cmov:
minmax1(int, int):
cmp w0, w1
csel w2, w0, w1, gt
csel w0, w1, w0, gt
orr x0, x0, x2, lsl 32
ret
minmax2(int, int):
cmp w0, w1
csel w2, w1, w0, le
csel w0, w0, w1, le
orr x0, x0, x2, lsl 32
ret
Note minmax3 code is not correct itself returns a std::pair<int&,int&>
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug tree-optimization/80874] gcc does not emit cmov for minmax
[not found] <bug-80874-4@http.gcc.gnu.org/bugzilla/>
2021-07-19 1:51 ` [Bug target/80874] gcc does not emit cmov for minmax pinskia at gcc dot gnu.org
@ 2023-07-21 7:40 ` pinskia at gcc dot gnu.org
1 sibling, 0 replies; 2+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-07-21 7:40 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80874
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed| |2023-07-21
Ever confirmed|0 |1
Component|target |tree-optimization
Depends on| |67962
Status|UNCONFIRMED |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |pinskia at gcc dot gnu.org
--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
This is basically PR 67962.
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67962
[Bug 67962] Optimization opportunity with conditional swap to two MIN/MAX in
phiopt
^ permalink raw reply [flat|nested] 2+ messages in thread
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[not found] <bug-80874-4@http.gcc.gnu.org/bugzilla/>
2021-07-19 1:51 ` [Bug target/80874] gcc does not emit cmov for minmax pinskia at gcc dot gnu.org
2023-07-21 7:40 ` [Bug tree-optimization/80874] " pinskia at gcc dot gnu.org
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