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* [Bug target/95958] New: [meta-bug] Inefficient arm_neon.h code for AArch64
@ 2020-06-29 11:03 rsandifo at gcc dot gnu.org
2020-06-29 11:04 ` [Bug target/95958] " rsandifo at gcc dot gnu.org
` (10 more replies)
0 siblings, 11 replies; 12+ messages in thread
From: rsandifo at gcc dot gnu.org @ 2020-06-29 11:03 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95958
Bug ID: 95958
Summary: [meta-bug] Inefficient arm_neon.h code for AArch64
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Keywords: meta-bug
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: rsandifo at gcc dot gnu.org
Target Milestone: ---
Target: aarch64*-*-*
This meta-bug is to collect AArch64 performance improvements that
require or have a strong relationship with arm_neon.h intrinsics.
This PR overlaps to some extent with PR47562, but that PR is more
general in two respects: it covers general arm_neon.h improvements,
and it covers both AArch32 and AArch64.
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug target/95958] [meta-bug] Inefficient arm_neon.h code for AArch64
2020-06-29 11:03 [Bug target/95958] New: [meta-bug] Inefficient arm_neon.h code for AArch64 rsandifo at gcc dot gnu.org
@ 2020-06-29 11:04 ` rsandifo at gcc dot gnu.org
2020-06-29 11:11 ` rsandifo at gcc dot gnu.org
` (9 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: rsandifo at gcc dot gnu.org @ 2020-06-29 11:04 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95958
rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Ever confirmed|0 |1
Last reconfirmed| |2020-06-29
Status|UNCONFIRMED |NEW
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug target/95958] [meta-bug] Inefficient arm_neon.h code for AArch64
2020-06-29 11:03 [Bug target/95958] New: [meta-bug] Inefficient arm_neon.h code for AArch64 rsandifo at gcc dot gnu.org
2020-06-29 11:04 ` [Bug target/95958] " rsandifo at gcc dot gnu.org
@ 2020-06-29 11:11 ` rsandifo at gcc dot gnu.org
2021-02-10 12:36 ` ktkachov at gcc dot gnu.org
` (8 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: rsandifo at gcc dot gnu.org @ 2020-06-29 11:11 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95958
rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |missed-optimization
Depends on| |66675, 80283, 88212, 89057,
| |89606, 89967, 91753, 94442,
| |95265, 91598, 82074
--- Comment #1 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> ---
At the time of writing, PR80283 doesn't have an AArch64 testcase,
only an AArch32 one. However, the underlying issue applies across
targets. The content probably overlaps a lot with PR91598, which
is AArch64-specific.
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66675
[Bug 66675] Could improve vector lane folding style operations.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80283
[Bug 80283] [8/9/10/11 Regression] bad SIMD register allocation
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82074
[Bug 82074] [aarch64] vmlsq_f32 compiled into 2 instructions
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88212
[Bug 88212] IRA Register Coalescing not working for the testcase
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89057
[Bug 89057] [8/9/10/11 Regression] AArch64 ld3 st4 less optimized
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89606
[Bug 89606] Extra mov after structure load instructions on aarch64
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89967
[Bug 89967] Inefficient code generation for vld2q_lane_u8 under aarch64
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91598
[Bug 91598] [8/9 regression] 60% speed drop on neon intrinsic loop
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91753
[Bug 91753] Bad register allocation of multi-register types
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94442
[Bug 94442] [10/11 regression] Redundant loads/stores emitted at -O3
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95265
[Bug 95265] aarch64: suboptimal code generation for common neon intrinsic
sequence involving shrn and mull
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug target/95958] [meta-bug] Inefficient arm_neon.h code for AArch64
2020-06-29 11:03 [Bug target/95958] New: [meta-bug] Inefficient arm_neon.h code for AArch64 rsandifo at gcc dot gnu.org
2020-06-29 11:04 ` [Bug target/95958] " rsandifo at gcc dot gnu.org
2020-06-29 11:11 ` rsandifo at gcc dot gnu.org
@ 2021-02-10 12:36 ` ktkachov at gcc dot gnu.org
2021-02-10 12:43 ` ktkachov at gcc dot gnu.org
` (7 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: ktkachov at gcc dot gnu.org @ 2021-02-10 12:36 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95958
Bug 95958 depends on bug 95265, which changed state.
Bug 95265 Summary: aarch64: suboptimal code generation for common neon intrinsic sequence involving shrn and mull
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95265
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug target/95958] [meta-bug] Inefficient arm_neon.h code for AArch64
2020-06-29 11:03 [Bug target/95958] New: [meta-bug] Inefficient arm_neon.h code for AArch64 rsandifo at gcc dot gnu.org
` (2 preceding siblings ...)
2021-02-10 12:36 ` ktkachov at gcc dot gnu.org
@ 2021-02-10 12:43 ` ktkachov at gcc dot gnu.org
2021-05-17 8:55 ` rsandifo at gcc dot gnu.org
` (6 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: ktkachov at gcc dot gnu.org @ 2021-02-10 12:43 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95958
Bug 95958 depends on bug 82074, which changed state.
Bug 82074 Summary: [aarch64] vmlsq_f32 compiled into 2 instructions
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82074
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug target/95958] [meta-bug] Inefficient arm_neon.h code for AArch64
2020-06-29 11:03 [Bug target/95958] New: [meta-bug] Inefficient arm_neon.h code for AArch64 rsandifo at gcc dot gnu.org
` (3 preceding siblings ...)
2021-02-10 12:43 ` ktkachov at gcc dot gnu.org
@ 2021-05-17 8:55 ` rsandifo at gcc dot gnu.org
2021-08-12 8:09 ` tnfchris at gcc dot gnu.org
` (5 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: rsandifo at gcc dot gnu.org @ 2021-05-17 8:55 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95958
Bug 95958 depends on bug 89057, which changed state.
Bug 89057 Summary: [9 Regression] AArch64 ld3 st4 less optimized
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89057
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug target/95958] [meta-bug] Inefficient arm_neon.h code for AArch64
2020-06-29 11:03 [Bug target/95958] New: [meta-bug] Inefficient arm_neon.h code for AArch64 rsandifo at gcc dot gnu.org
` (4 preceding siblings ...)
2021-05-17 8:55 ` rsandifo at gcc dot gnu.org
@ 2021-08-12 8:09 ` tnfchris at gcc dot gnu.org
2021-08-17 10:13 ` mkuvyrkov at gcc dot gnu.org
` (4 subsequent siblings)
10 siblings, 0 replies; 12+ 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=95958
Bug 95958 depends on bug 91753, which changed state.
Bug 91753 Summary: Bad register allocation of multi-register types
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91753
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug target/95958] [meta-bug] Inefficient arm_neon.h code for AArch64
2020-06-29 11:03 [Bug target/95958] New: [meta-bug] Inefficient arm_neon.h code for AArch64 rsandifo at gcc dot gnu.org
` (5 preceding siblings ...)
2021-08-12 8:09 ` tnfchris at gcc dot gnu.org
@ 2021-08-17 10:13 ` mkuvyrkov at gcc dot gnu.org
2021-09-13 15:20 ` pinskia at gcc dot gnu.org
` (3 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: mkuvyrkov at gcc dot gnu.org @ 2021-08-17 10:13 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95958
Bug 95958 depends on bug 91598, which changed state.
Bug 91598 Summary: [9 regression] 60% speed drop on neon intrinsic loop
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91598
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug target/95958] [meta-bug] Inefficient arm_neon.h code for AArch64
2020-06-29 11:03 [Bug target/95958] New: [meta-bug] Inefficient arm_neon.h code for AArch64 rsandifo at gcc dot gnu.org
` (6 preceding siblings ...)
2021-08-17 10:13 ` mkuvyrkov at gcc dot gnu.org
@ 2021-09-13 15:20 ` pinskia at gcc dot gnu.org
2023-08-04 17:22 ` pinskia at gcc dot gnu.org
` (2 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-09-13 15:20 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95958
Bug 95958 depends on bug 95969, which changed state.
Bug 95969 Summary: Use of __builtin_aarch64_im_lane_boundsi in AArch64 arm_neon.h interferes with gimple optimisation
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95969
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug target/95958] [meta-bug] Inefficient arm_neon.h code for AArch64
2020-06-29 11:03 [Bug target/95958] New: [meta-bug] Inefficient arm_neon.h code for AArch64 rsandifo at gcc dot gnu.org
` (7 preceding siblings ...)
2021-09-13 15:20 ` pinskia at gcc dot gnu.org
@ 2023-08-04 17:22 ` pinskia at gcc dot gnu.org
2023-08-23 15:54 ` tnfchris at gcc dot gnu.org
2024-05-22 20:09 ` pinskia at gcc dot gnu.org
10 siblings, 0 replies; 12+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-08-04 17:22 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95958
Bug 95958 depends on bug 94442, which changed state.
Bug 94442 Summary: [11/12/13/14 regression] Redundant loads/stores emitted at -O3
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94442
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug target/95958] [meta-bug] Inefficient arm_neon.h code for AArch64
2020-06-29 11:03 [Bug target/95958] New: [meta-bug] Inefficient arm_neon.h code for AArch64 rsandifo at gcc dot gnu.org
` (8 preceding siblings ...)
2023-08-04 17:22 ` pinskia at gcc dot gnu.org
@ 2023-08-23 15:54 ` tnfchris at gcc dot gnu.org
2024-05-22 20:09 ` pinskia at gcc dot gnu.org
10 siblings, 0 replies; 12+ messages in thread
From: tnfchris at gcc dot gnu.org @ 2023-08-23 15:54 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95958
Bug 95958 depends on bug 88212, which changed state.
Bug 88212 Summary: IRA Register Coalescing not working for the testcase
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88212
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |FIXED
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug target/95958] [meta-bug] Inefficient arm_neon.h code for AArch64
2020-06-29 11:03 [Bug target/95958] New: [meta-bug] Inefficient arm_neon.h code for AArch64 rsandifo at gcc dot gnu.org
` (9 preceding siblings ...)
2023-08-23 15:54 ` tnfchris at gcc dot gnu.org
@ 2024-05-22 20:09 ` pinskia at gcc dot gnu.org
10 siblings, 0 replies; 12+ messages in thread
From: pinskia at gcc dot gnu.org @ 2024-05-22 20:09 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95958
Bug 95958 depends on bug 102171, which changed state.
Bug 102171 Summary: vget_low_*/vget_high_* intrinsics should become BIT_FIELD_REF during gimple
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102171
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
^ permalink raw reply [flat|nested] 12+ messages in thread
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2020-06-29 11:03 [Bug target/95958] New: [meta-bug] Inefficient arm_neon.h code for AArch64 rsandifo at gcc dot gnu.org
2020-06-29 11:04 ` [Bug target/95958] " rsandifo at gcc dot gnu.org
2020-06-29 11:11 ` rsandifo at gcc dot gnu.org
2021-02-10 12:36 ` ktkachov at gcc dot gnu.org
2021-02-10 12:43 ` ktkachov at gcc dot gnu.org
2021-05-17 8:55 ` rsandifo at gcc dot gnu.org
2021-08-12 8:09 ` tnfchris at gcc dot gnu.org
2021-08-17 10:13 ` mkuvyrkov at gcc dot gnu.org
2021-09-13 15:20 ` pinskia at gcc dot gnu.org
2023-08-04 17:22 ` pinskia at gcc dot gnu.org
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