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* [Bug target/91753] Bad register allocation of multi-register types
[not found] <bug-91753-4@http.gcc.gnu.org/bugzilla/>
@ 2021-01-29 9:12 ` ktkachov at gcc dot gnu.org
2021-08-12 8:09 ` tnfchris at gcc dot gnu.org
1 sibling, 0 replies; 2+ messages in thread
From: ktkachov at gcc dot gnu.org @ 2021-01-29 9:12 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91753
ktkachov at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |ktkachov at gcc dot gnu.org
--- Comment #8 from ktkachov at gcc dot gnu.org ---
The issue with the many moves is still there, however for GCC 11 at least
they're hoisted outside the loop
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug target/91753] Bad register allocation of multi-register types
[not found] <bug-91753-4@http.gcc.gnu.org/bugzilla/>
2021-01-29 9:12 ` [Bug target/91753] Bad register allocation of multi-register types ktkachov at gcc dot gnu.org
@ 2021-08-12 8:09 ` tnfchris at gcc dot gnu.org
1 sibling, 0 replies; 2+ messages in thread
From: tnfchris at gcc dot gnu.org @ 2021-08-12 8:09 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91753
Tamar Christina <tnfchris at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
CC| |tnfchris at gcc dot gnu.org
Resolution|--- |FIXED
Target Milestone|--- |12.0
--- Comment #9 from Tamar Christina <tnfchris at gcc dot gnu.org> ---
Fixed in GCC 12 where we generate at -O1/2/3
neon_transform_nada(uint8x16x4_t, unsigned char*, int):
ldp q7, q6, [x0]
ldp q5, q4, [x0, 32]
cmp w1, 0
ble .L2
mov w2, 0
.L3:
add w2, w2, 1
tbx v7.16b, {v0.16b - v3.16b}, v7.16b
tbx v6.16b, {v0.16b - v3.16b}, v6.16b
tbx v5.16b, {v0.16b - v3.16b}, v5.16b
tbx v4.16b, {v0.16b - v3.16b}, v4.16b
cmp w1, w2
bne .L3
.L2:
stp q7, q6, [x0]
stp q5, q4, [x0, 32]
ret
^ permalink raw reply [flat|nested] 2+ messages in thread
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[not found] <bug-91753-4@http.gcc.gnu.org/bugzilla/>
2021-01-29 9:12 ` [Bug target/91753] Bad register allocation of multi-register types ktkachov at gcc dot gnu.org
2021-08-12 8:09 ` tnfchris at gcc dot gnu.org
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