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Commit Graph

60986 Commits

Author SHA1 Message Date
WANG Xuerui
0f003f9d15 internal/cpu, runtime: make linux/loong64 HWCAP data available
This can be used to toggle runtime usages of ISA extensions as such
usages appear.

Only the CRC32 bit is exposed for now, as the others are not going to be
utilized in the standard library for a while.

Change-Id: I774032ca84dc8bcf1c9f17558917315af07c7314
Reviewed-on: https://go-review.googlesource.com/c/go/+/482416
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: xiaodong liu <teaofmoli@gmail.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
2024-08-29 09:15:06 +00:00
Tim King
9e8ea567c8 cmd/compile/internal/noder: write V2 bitstream aliastypeparams=1
Enables V2 unified IR bitstreams when GOEXPERIMENT aliastypeparams
are enabled.

Allows pkgbits.NewPkgEncoder to set the output version.
Reenables support for writing V0 streams.

Updates #68778
Updates #68526

Change-Id: I590c494d81ab7db148232ceaba52229068d1e986
Reviewed-on: https://go-review.googlesource.com/c/go/+/608595
Reviewed-by: David Chase <drchase@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
2024-08-28 21:03:29 +00:00
Ian Lance Taylor
6d52d7d22b slices: clarify Insert behavior if i == len(s)
Fixes #69104

Change-Id: Ie928239d5ef198ce36759ec4cffb7f6320ff3b82
Reviewed-on: https://go-review.googlesource.com/c/go/+/609175
Reviewed-by: Eli Bendersky <eliben@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Commit-Queue: Ian Lance Taylor <iant@google.com>
2024-08-28 20:02:26 +00:00
Michael Matloob
fe63d483f4 cmd/go: print the proper error message for setting telemetry vars
For #68960

Change-Id: I5495b3d45ad3817d7edf6336a5e24a331d5cf8d0
Reviewed-on: https://go-review.googlesource.com/c/go/+/609115
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Sam Thanawalla <samthanawalla@google.com>
2024-08-28 16:55:45 +00:00
Joel Sing
e126129d76 cmd/compile/internal/ssa: combine shift and addition for riscv64 rva22u64
When GORISCV64 enables rva22u64, combined shift and addition using the
SH1ADD, SH2ADD and SH3ADD instructions that are available via the Zba
extension. This results in more than 2000 instructions being removed
from the Go binary on riscv64.

Change-Id: Ia62ae7dda3d8083cff315113421bee73f518eea8
Reviewed-on: https://go-review.googlesource.com/c/go/+/606636
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Mark Ryan <markdryan@rivosinc.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Meng Zhuo <mengzhuo1203@gmail.com>
2024-08-28 13:46:24 +00:00
Michael Matloob
aeac0b6cbf go/types, types2: use max(fileVersion, go1.21) if fileVersion present
Change the rules for how //go:build "file versions" are applied: instead
of considering whether a file version is an upgrade or downgrade from
the -lang version, always use max(fileVersion, go1.21). This prevents
file versions from downgrading the version below go1.21.  Before Go 1.21
the //go:build version did not have the meaning of setting the file's
langage version.

This fixes an issue that was appearing in GOPATH builds: Go 1.23.0
started providing -lang versions to the compiler in GOPATH mode (among
other places) which it wasn't doing before, and it set -lang to the
toolchain version (1.23). Because the -lang version was greater than
go1.21, language version used to compile the file would be set to the
//go:build file version. //go:build file versions below 1.21 could cause
files that could previously build to stop building.

For example, take a Go file with a //go:build line specifying go1.10.
If that file used a 1.18 feature, that use would compile fine with a Go
1.22 toolchain. But it would produce an error when compiling with the
1.23.0 toolchain because it set the language version to 1.10 and
disallowed the 1.18 feature. This breaks backwards compatibility: when
the build tag was added, it did not have the meaning of restricting the
language version.

For #68658

Change-Id: I6cedda81a55bcccffaa3501eef9e2be6541b6ece
Reviewed-on: https://go-review.googlesource.com/c/go/+/607955
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Robert Griesemer <gri@google.com>
2024-08-27 22:37:44 +00:00
Michael Anthony Knyszek
54fe0fd43f runtime: store bp on cgocallback as unsafe.Pointer
As of CL 580255, the runtime tracks the frame pointer (or base pointer,
bp) when entering syscalls, so that we can use fpTracebackPCs on
goroutines that are sitting in syscalls. That CL mostly got things
right, but missed one very subtle detail.

When calling from Go->C->Go, the goroutine stack performing the calls
when returning to Go is free to move around in memory due to growth,
shrinking, etc. But upon returning back to C, it needs to restore
gp.syscall*, including gp.syscallsp and gp.syscallbp. The way syscallsp
currently gets updated is automagically: it's stored as an
unsafe.Pointer on the stack so that it shows up in a stack map. If the
stack ever moves, it'll get updated correctly. But gp.syscallbp isn't
saved to the stack as an unsafe.Pointer, but rather as a uintptr, so it
never gets updated! As a result, in rare circumstances, fpTracebackPCs
can correctly try to use gp.syscallbp as the starting point for the
traceback, but the value is stale.

This change fixes the problem by just storing gp.syscallbp to the stack
on cgocallback as an unsafe.Pointer, like gp.syscallsp. It also adds a
comment documenting this subtlety; the lack of explanation for the
unsafe.Pointer type on syscallsp meant this detail was missed -- let's
not miss it again in the future.

Now, we have a fix, what about a test? Unfortunately, testing this is
going to be incredibly annoying because the circumstances under which
gp.syscallbp are actually used for traceback are non-deterministic and
hard to arrange, especially from within testprogcgo where we don't have
export_test.go and can't reach into the runtime.

So, instead, add a gp.syscallbp check to reentersyscall and
entersyscallblock that mirrors the gp.syscallbp consistency check. This
probably causes some miniscule slowdown to the syscall path, but it'll
catch the issue without having to actually perform a traceback.

Fixes #69085.

Change-Id: Iaf771758f1666024b854f5fbe2b2c63cbe35b201
Reviewed-on: https://go-review.googlesource.com/c/go/+/608775
Reviewed-by: Nick Ripley <nick.ripley@datadoghq.com>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
2024-08-27 18:15:28 +00:00
cuishuang
7b4ecaa902 html/template: track continue nodes correctly when escaping
Fixes #69076

Change-Id: I1a16675c466722f44d0734e95d3c8111e33ff580
Reviewed-on: https://go-review.googlesource.com/c/go/+/607736
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: Zxilly Chou <zxilly@outlook.com>
Run-TryBot: shuang cui <imcusg@gmail.com>
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2024-08-27 17:55:55 +00:00
Jes Cok
994d1d4466 net/http: simplify http.Request.Clone
By using maps.Clone and omitting nil checks when calling
http.Header.Clone.

I'm not using slices.Clone because the result of slices.Clone
may have additional unused capacity.

Change-Id: I4aed0fea218404c7270e35324e6bd62d855296c7
GitHub-Last-Rev: 9fd5dd5907
GitHub-Pull-Request: golang/go#69070
Reviewed-on: https://go-review.googlesource.com/c/go/+/608295
Reviewed-by: Damien Neil <dneil@google.com>
Auto-Submit: Damien Neil <dneil@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-08-27 17:40:39 +00:00
Michael Pratt
61e00ae134 debug/buildinfo: stop searchMagic search at EOF
An invalid executable may claim to have a data section bigger than the
executable, causing readData in searchMagic to hit EOF. Since readData
suppresses all EOF errors, searchData would keep attempting to search
through a potentially huge "section" despite readData continuously
failing.

Fix by suppressing EOF only on partial read. If nothing is read, allow
EOF. Note that most of the admittedly tedious EOF handling in this
package is around ensuring we return errNotGoExe in most cases.

This was discovered by the new fuzz test. This fuzz test was inspired
by #69066, though it has not found that specific bug.

Change-Id: Icf413e996cecc583c084c9e44249b9294c3d8f10
Reviewed-on: https://go-review.googlesource.com/c/go/+/608637
Reviewed-by: Ian Lance Taylor <iant@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-08-27 17:29:18 +00:00
Dmitri Shuralyov
aa2e8b9ce2 cmd/dist: update tryDirs list to match make scripts
The $HOME/sdk/go1.17 and $HOME/go1.17 paths were initially added as
places to look for a bootstrap toolchain to make.{bash,bat,rc} scripts
and in cmd/dist (CL 370274). Those two go1.17 directories have since
been updated in the make scripts to go1.20.6 (CL 512275) and later on
to go1.22.6 (CL 606156), but the same list in cmd/dist was missed.

Fix the inconsistency now. But maybe cmd/dist doesn't need to maintain
this logic, if it's required to be invoked via one of the make scripts,
since they're responsible for setting GOROOT_BOOTSTRAP?

For #64751.

Change-Id: I0988005c559014791363138f2f722cc1f9a78bcf
Reviewed-on: https://go-review.googlesource.com/c/go/+/607821
Reviewed-by: Ian Lance Taylor <iant@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
2024-08-27 17:23:37 +00:00
Ian Lance Taylor
6f00a4efe4 debug/buildinfo: don't crash on corrupt object file
If the length reported for the object file is more than the amount of
data we actually read, then the count can tell us that there is
sufficient remaining data but the slice operation can fail.

No test case because the problem can only happen for invalid data.
Let the fuzzer find cases like this.

Fixes #69066

Change-Id: I8d12ca8ade3330517ade45c7578b477772b7efd2
Reviewed-on: https://go-review.googlesource.com/c/go/+/608517
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Commit-Queue: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
2024-08-27 16:27:51 +00:00
Joel Sing
7c54e024e8 cmd/compile/internal/ssagen: add check for duplicate intrinsics
Add a check to ensure that intrinsics are not being overwritten.
Remove two S390X intrinsics that are being replaced by aliases and
are therefore ineffective.

Change-Id: I4187a169c14ca75c45a67f41a1d626d76b82bb72
Reviewed-on: https://go-review.googlesource.com/c/go/+/605479
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
2024-08-27 14:35:25 +00:00
Joel Sing
f490a8d8fa cmd/compile/internal/ssagen: improve intrinsic test
Now that we can pass configuration to initIntrinsics, clean up the
intrinsic test and always enable power10. Additionally, provide an
-update flag that prints out updated golden values.

Change-Id: Ibfef339d513a4d67d53a5a310a82165592ca338f
Reviewed-on: https://go-review.googlesource.com/c/go/+/607055
Reviewed-by: David Chase <drchase@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
2024-08-27 14:34:47 +00:00
Joel Sing
dff15aa610 cmd/compile/internal/ssagen: provide intrinsicBuilders
Create an intrinsicBuilders type that has functions for adding and
looking up intrinsics. This makes the implementation more self contained,
readable and testable. Additionally, pass an *intrinsicBuildConfig to
initIntrinsics to improve testability without needing to modify package
level variables.

Change-Id: I0ee0a19c192dd6da9f1c5f1c29b98a3ad8161fe2
Reviewed-on: https://go-review.googlesource.com/c/go/+/605478
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Joel Sing <joel@sing.id.au>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Keith Randall <khr@golang.org>
2024-08-27 14:27:25 +00:00
qmuntal
5d82dbb59c os/user: test that Current does not depend on netapi32.dll
Updates #21867.

Change-Id: I1eb923ef66aa0f338bfa0d683159edc1d8ae2a6c
Reviewed-on: https://go-review.googlesource.com/c/go/+/604415
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
2024-08-27 13:21:49 +00:00
Keith Randall
36b45bca66 cmd/compile: regalloc: drop values that aren't used until after a call
No point in keeping values in registers when their next use is after
a call, as we'd have to spill/restore them anyway.

cmd/go is 0.1% smaller.

Fixes #59297

Change-Id: I10ee761d0d23229f57de278f734c44d6a8dccd6c
Reviewed-on: https://go-review.googlesource.com/c/go/+/509255
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Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2024-08-26 22:29:43 +00:00
Michael Matloob
a7689a0134 cmd/go: avoid making some paths relative in go work use
filepath.Rel can sometimes return the a relative path that doesn't work.
If the basepath contains a symlink as a path component, and the targpath
does not exist with the directory pointed to by the innermost symlink,
the relative path can "cross" the symlink. The issue is that for the
return value for filepath.Rel to be correct, the ".." components of the
relative path would need to be collapsed before the symlinks are
expanded, but it was verified by doing local testing that the opposite
is true.

go work use (and cmd/go/internal/modload.ReadModFile) both try to
shorten absolute path arguments to relative paths from the working
directory (for better error messages, for instance). Avoid doing so when
the relative path could be wrong using a more conservative rule than the
above: if expanding the symlinks in the current directory produces a
different result, and the relative path we'd return starts with ".." and
then the path separator.

Fixes #68383

Change-Id: I0a6202be672484d4000fc753c69f2165615f3f72
Reviewed-on: https://go-review.googlesource.com/c/go/+/603136
TryBot-Bypass: Michael Matloob <matloob@golang.org>
Reviewed-by: Sam Thanawalla <samthanawalla@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
Run-TryBot: Michael Matloob <matloob@golang.org>
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2024-08-26 21:50:54 +00:00
Tim King
bd3bb5adf9 go/internal/gcimporter: parse materialized aliases
Parse materialized aliases in indexed format.

This was in https://go.dev/cl/574717 in x/tools.

Updates #68778

Change-Id: I2f0871aeb5a2e74c803176001f178757766a4a0a
Reviewed-on: https://go-review.googlesource.com/c/go/+/607498
Reviewed-by: David Chase <drchase@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-08-26 21:03:19 +00:00
goto1134
7f05a255a0 cmd/go: scale go list with GOMAXPROCS
Benchmark from the go-list-benchmark branch shows the following result:

goos: darwin
goarch: arm64
pkg: cmd/go
cpu: Apple M1 Max
                     │   old.txt   │               new.txt               │
                     │   sec/op    │   sec/op     vs base                │
ListModules/Empty-10   7.768m ± 5%   7.768m ± 6%        ~ (p=0.989 n=20)
ListModules/Cmd-10     272.3m ± 2%   137.8m ± 2%  -49.40% (p=0.000 n=20)
ListModules/K8S-10     10.741 ± 2%    2.525 ± 5%  -76.49% (p=0.000 n=20)
geomean                283.2m        139.3m       -50.82%

                     │   old.txt    │               new.txt               │
                     │  sys-sec/op  │  sys-sec/op   vs base               │
ListModules/Empty-10   2.380m ±  9%   2.443m ±  9%       ~ (p=0.314 n=20)
ListModules/Cmd-10     51.84m ± 13%   47.27m ± 14%       ~ (p=0.289 n=20)
ListModules/K8S-10      1.660 ±  8%    1.485 ± 28%       ~ (p=0.512 n=20)
geomean                58.95m         55.56m        -5.75%

                     │   old.txt    │               new.txt                │
                     │ user-sec/op  │ user-sec/op   vs base                │
ListModules/Empty-10   3.034m ±  4%   3.053m ±  3%        ~ (p=0.445 n=20)
ListModules/Cmd-10     18.01m ± 11%   15.39m ±  5%  -14.55% (p=0.000 n=20)
ListModules/K8S-10     407.6m ± 11%   209.2m ± 49%  -48.67% (p=0.000 n=20)
geomean                28.13m         21.42m        -23.86%

Fixes #63136

Change-Id: Ifd406a52494eb37430306ee1f29a8bf5c1973007
GitHub-Last-Rev: eba40c944e
GitHub-Pull-Request: golang/go#63137
Reviewed-on: https://go-review.googlesource.com/c/go/+/530037
Reviewed-by: Sam Thanawalla <samthanawalla@google.com>
Reviewed-by: qiu laidongfeng2 <2645477756@qq.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-08-26 20:23:00 +00:00
Cuong Manh Le
5de9811f37 cmd/compile: deprecate derived info needed field
This field is unused since shape-based stenciling was added for Unified
IR (CL 421821). The derived types information is now explicitly using
derived-type dictionaries (CL 331829).

This CL follows the pattern used in CL 606035.

Updates #68778

Change-Id: Ie784b6443c0a651854bfbcebb8a5166b1481408b
Reviewed-on: https://go-review.googlesource.com/c/go/+/608216
Reviewed-by: Robert Griesemer <gri@google.com>
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Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Tim King <taking@google.com>
2024-08-26 17:46:56 +00:00
Cuong Manh Le
c586dbb8b7 internal/pkgbits: add DerivedInfoNeeded
So next CL can use it to remove unnecessary derivedInfo needed field.

Updates #68778

Change-Id: Ia4e0f638beaf4a448fbf10a9aa1bc9425349a5e8
Reviewed-on: https://go-review.googlesource.com/c/go/+/608215
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Tim King <taking@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
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2024-08-26 17:46:52 +00:00
Paul E. Murphy
2b0a157d68 cmd/compile: intrinsify math.MulUintptr on PPC64
This can be done efficiently with few instructions.

This also adds MULHDUCC for further codegen improvement.

Change-Id: I06320ba4383a679341b911a237a360ef07b19168
Reviewed-on: https://go-review.googlesource.com/c/go/+/605975
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Reviewed-by: Archana Ravindar <aravinda@redhat.com>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
2024-08-26 17:02:43 +00:00
Kevin Z
7c7d6d31f3 internal/runtime/sys: fix typo in comment
just removed a single byte :)

Change-Id: Icd734f9f8f22b2ed0d9d0125d18b6d291bb14cd6
GitHub-Last-Rev: 93c0fd00d8
GitHub-Pull-Request: golang/go#69056
Reviewed-on: https://go-review.googlesource.com/c/go/+/607878
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Reviewed-by: Ian Lance Taylor <iant@google.com>
2024-08-26 15:51:49 +00:00
Jes Cok
96d8ff00c2 bytes: fix a typo
Change-Id: Iecbfe986da386b5c9b8c366904f659acc8f34cfc
GitHub-Last-Rev: ed6c744bbd
GitHub-Pull-Request: golang/go#69039
Reviewed-on: https://go-review.googlesource.com/c/go/+/608015
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Auto-Submit: Ian Lance Taylor <iant@google.com>
2024-08-24 00:51:40 +00:00
Nic Klaassen
08707d66c3 database/sql: fix panic with concurrent Conn and Close
The current implementation has a panic when the database is closed
concurrently with a new connection attempt.

connRequestSet.CloseAndRemoveAll sets connRequestSet.s to a nil slice.
If this happens between calls to connRequestSet.Add and
connRequestSet.Delete, there is a panic when trying to write to the nil
slice. This is sequence is likely to occur in DB.conn, where the mutex
is released between calls to db.connRequests.Add and
db.connRequests.Delete

This change updates connRequestSet.CloseAndRemoveAll to set the curIdx
to -1 for all pending requests before setting its internal slice to nil.
CloseAndRemoveAll already iterates the full slice to close all the request
channels. It seems appropriate to set curIdx to -1 before deleting the
slice for 3 reasons:
1. connRequestSet.deleteIndex also sets curIdx to -1
2. curIdx will not be relevant to anything after the slice is set to nil
3. connRequestSet.Delete already checks for negative indices

Fixes #68949

Change-Id: I6b7ebc5a71b67322908271d13865fa12f2469b87
GitHub-Last-Rev: 7d2669155b
GitHub-Pull-Request: golang/go#68953
Reviewed-on: https://go-review.googlesource.com/c/go/+/607238
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
Commit-Queue: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
2024-08-24 00:26:08 +00:00
Tim King
3b36d92c96 cmd/compile/internal: write type parameters for aliases
Writes the field for type parameter names for aliases when
the bitstream is >= V2.

This is a no-op at the moment as the writer is hardwired to V1.

Updates #68778

Change-Id: I5887e3608239b9a6a47e3cc21cacb75b84e1d186
Reviewed-on: https://go-review.googlesource.com/c/go/+/607235
Reviewed-by: David Chase <drchase@google.com>
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Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
2024-08-23 19:22:02 +00:00
Joel Sing
02a9f51011 test/codegen: add initial codegen tests for integer min/max
Change-Id: I006370053748edbec930c7279ee88a805009aa0d
Reviewed-on: https://go-review.googlesource.com/c/go/+/606976
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Meng Zhuo <mengzhuo1203@gmail.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-08-23 15:17:17 +00:00
Paul E. Murphy
1e9c5bbc8a crypto/aes: add missing aes-gcm buffer overlap checks to PPC64
The tests added by CL 601778 highlighted missing buffer overlap
checks in the ppc64 specific aes-gcm implementation.

Fixes #69007

Change-Id: I80c3b5628c5079cfed2c3dace7298512c16a8f46
Reviewed-on: https://go-review.googlesource.com/c/go/+/607519
Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
2024-08-23 15:12:31 +00:00
Joel Sing
2cee5d8109 math/big: implement addMulVVW in riscv64 assembly
This provides an assembly implementation of addMulVVW for riscv64,
processing up to four words per loop, resulting in a significant
performance gain.

On a StarFive VisionFive 2:

                   │ addmulvvw.1  │             addmulvvw.2             │
                   │    sec/op    │   sec/op     vs base                │
AddMulVVW/1-4         65.49n ± 0%   50.79n ± 0%  -22.44% (p=0.000 n=10)
AddMulVVW/2-4         82.81n ± 0%   66.83n ± 0%  -19.29% (p=0.000 n=10)
AddMulVVW/3-4        100.20n ± 0%   82.87n ± 0%  -17.30% (p=0.000 n=10)
AddMulVVW/4-4        117.50n ± 0%   84.20n ± 0%  -28.34% (p=0.000 n=10)
AddMulVVW/5-4         134.9n ± 0%   100.3n ± 0%  -25.69% (p=0.000 n=10)
AddMulVVW/10-4        221.7n ± 0%   164.4n ± 0%  -25.85% (p=0.000 n=10)
AddMulVVW/100-4       1.794µ ± 0%   1.250µ ± 0%  -30.32% (p=0.000 n=10)
AddMulVVW/1000-4      17.42µ ± 0%   12.08µ ± 0%  -30.68% (p=0.000 n=10)
AddMulVVW/10000-4     254.9µ ± 0%   214.8µ ± 0%  -15.75% (p=0.000 n=10)
AddMulVVW/100000-4    2.569m ± 0%   2.178m ± 0%  -15.20% (p=0.000 n=10)
geomean               1.443µ        1.107µ       -23.29%

                   │ addmulvvw.1  │              addmulvvw.2              │
                   │     B/s      │      B/s       vs base                │
AddMulVVW/1-4        932.0Mi ± 0%   1201.6Mi ± 0%  +28.93% (p=0.000 n=10)
AddMulVVW/2-4        1.440Gi ± 0%    1.784Gi ± 0%  +23.90% (p=0.000 n=10)
AddMulVVW/3-4        1.785Gi ± 0%    2.158Gi ± 0%  +20.87% (p=0.000 n=10)
AddMulVVW/4-4        2.029Gi ± 0%    2.832Gi ± 0%  +39.59% (p=0.000 n=10)
AddMulVVW/5-4        2.209Gi ± 0%    2.973Gi ± 0%  +34.55% (p=0.000 n=10)
AddMulVVW/10-4       2.689Gi ± 0%    3.626Gi ± 0%  +34.86% (p=0.000 n=10)
AddMulVVW/100-4      3.323Gi ± 0%    4.770Gi ± 0%  +43.54% (p=0.000 n=10)
AddMulVVW/1000-4     3.421Gi ± 0%    4.936Gi ± 0%  +44.27% (p=0.000 n=10)
AddMulVVW/10000-4    2.338Gi ± 0%    2.776Gi ± 0%  +18.69% (p=0.000 n=10)
AddMulVVW/100000-4   2.320Gi ± 0%    2.736Gi ± 0%  +17.93% (p=0.000 n=10)
geomean              2.109Gi         2.749Gi       +30.36%

Change-Id: I6c7ee48233c53ff9b6a5a9002675886cd9bff5af
Reviewed-on: https://go-review.googlesource.com/c/go/+/595400
Reviewed-by: Meng Zhuo <mengzhuo1203@gmail.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Mark Ryan <markdryan@rivosinc.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-08-23 10:41:28 +00:00
Joel Sing
86cd5c4034 math/big: implement mulAddVWW in riscv64 assembly
This provides an assembly implementation of mulAddVWW for riscv64,
processing up to four words per loop, resulting in a significant
performance gain.

On a StarFive VisionFive 2:

                   │ muladdvww.1  │             muladdvww.2             │
                   │    sec/op    │   sec/op     vs base                │
MulAddVWW/1-4         68.18n ± 0%   65.49n ± 0%   -3.95% (p=0.000 n=10)
MulAddVWW/2-4         82.81n ± 0%   78.85n ± 0%   -4.78% (p=0.000 n=10)
MulAddVWW/3-4         97.49n ± 0%   72.18n ± 0%  -25.96% (p=0.000 n=10)
MulAddVWW/4-4        112.20n ± 0%   85.54n ± 0%  -23.76% (p=0.000 n=10)
MulAddVWW/5-4        126.90n ± 0%   98.90n ± 0%  -22.06% (p=0.000 n=10)
MulAddVWW/10-4        200.3n ± 0%   144.3n ± 0%  -27.96% (p=0.000 n=10)
MulAddVWW/100-4      1532.0n ± 0%   860.0n ± 0%  -43.86% (p=0.000 n=10)
MulAddVWW/1000-4     14.757µ ± 0%   8.076µ ± 0%  -45.27% (p=0.000 n=10)
MulAddVWW/10000-4     204.0µ ± 0%   137.1µ ± 0%  -32.77% (p=0.000 n=10)
MulAddVWW/100000-4    2.066m ± 0%   1.382m ± 0%  -33.12% (p=0.000 n=10)
geomean               1.311µ        950.0n       -27.51%

                   │ muladdvww.1  │             muladdvww.2              │
                   │     B/s      │     B/s       vs base                │
MulAddVWW/1-4        895.1Mi ± 0%   932.0Mi ± 0%   +4.11% (p=0.000 n=10)
MulAddVWW/2-4        1.440Gi ± 0%   1.512Gi ± 0%   +5.02% (p=0.000 n=10)
MulAddVWW/3-4        1.834Gi ± 0%   2.477Gi ± 0%  +35.07% (p=0.000 n=10)
MulAddVWW/4-4        2.125Gi ± 0%   2.787Gi ± 0%  +31.15% (p=0.000 n=10)
MulAddVWW/5-4        2.349Gi ± 0%   3.013Gi ± 0%  +28.28% (p=0.000 n=10)
MulAddVWW/10-4       2.975Gi ± 0%   4.130Gi ± 0%  +38.79% (p=0.000 n=10)
MulAddVWW/100-4      3.891Gi ± 0%   6.930Gi ± 0%  +78.11% (p=0.000 n=10)
MulAddVWW/1000-4     4.039Gi ± 0%   7.380Gi ± 0%  +82.72% (p=0.000 n=10)
MulAddVWW/10000-4    2.922Gi ± 0%   4.346Gi ± 0%  +48.74% (p=0.000 n=10)
MulAddVWW/100000-4   2.884Gi ± 0%   4.313Gi ± 0%  +49.52% (p=0.000 n=10)
geomean              2.321Gi        3.202Gi       +37.95%

Change-Id: If08191607913ce5c7641f34bae8fa5c9dfb44777
Reviewed-on: https://go-review.googlesource.com/c/go/+/595399
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Mark Ryan <markdryan@rivosinc.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Meng Zhuo <mengzhuo1203@gmail.com>
2024-08-23 10:41:12 +00:00
Joel Sing
6d55a017fa crypto/sha256: provide optimised assembly for riscv64
Provide an optimised assembly implementation of sha256 for riscv64.
This results in considerable performance gains.

On a StarFive VisionFive 2:

                    │   sha256.1   │              sha256.2               │
                    │    sec/op    │   sec/op     vs base                │
Hash8Bytes/New-4       7.820µ ± 0%   5.193µ ± 0%  -33.59% (p=0.000 n=10)
Hash8Bytes/Sum224-4    7.918µ ± 0%   5.294µ ± 0%  -33.15% (p=0.000 n=10)
Hash8Bytes/Sum256-4    7.950µ ± 0%   5.320µ ± 0%  -33.08% (p=0.000 n=10)
Hash1K/New-4          108.03µ ± 0%   66.12µ ± 0%  -38.79% (p=0.000 n=10)
Hash1K/Sum224-4       108.12µ ± 0%   66.22µ ± 0%  -38.76% (p=0.000 n=10)
Hash1K/Sum256-4       108.15µ ± 0%   66.24µ ± 0%  -38.75% (p=0.000 n=10)
Hash8K/New-4           808.5µ ± 0%   493.0µ ± 0%  -39.02% (p=0.000 n=10)
Hash8K/Sum224-4        808.6µ ± 0%   493.1µ ± 0%  -39.02% (p=0.000 n=10)
Hash8K/Sum256-4        808.6µ ± 0%   493.1µ ± 0%  -39.02% (p=0.000 n=10)
geomean                88.37µ        55.61µ       -37.08%

                    │   sha256.1   │               sha256.2                │
                    │     B/s      │      B/s       vs base                │
Hash8Bytes/New-4      996.1Ki ± 0%   1503.9Ki ± 0%  +50.98% (p=0.000 n=10)
Hash8Bytes/Sum224-4   986.3Ki ± 0%   1474.6Ki ± 0%  +49.50% (p=0.000 n=10)
Hash8Bytes/Sum256-4   986.3Ki ± 0%   1464.8Ki ± 0%  +48.51% (p=0.000 n=10)
Hash1K/New-4          9.041Mi ± 0%   14.772Mi ± 0%  +63.40% (p=0.000 n=10)
Hash1K/Sum224-4       9.031Mi ± 0%   14.744Mi ± 0%  +63.25% (p=0.000 n=10)
Hash1K/Sum256-4       9.031Mi ± 0%   14.744Mi ± 0%  +63.25% (p=0.000 n=10)
Hash8K/New-4          9.661Mi ± 0%   15.850Mi ± 0%  +64.07% (p=0.000 n=10)
Hash8K/Sum224-4       9.661Mi ± 0%   15.841Mi ± 0%  +63.97% (p=0.000 n=10)
Hash8K/Sum256-4       9.661Mi ± 0%   15.841Mi ± 0%  +63.97% (p=0.000 n=10)
geomean               4.386Mi         6.966Mi       +58.85%

Change-Id: Ieead7b7c02291d70ddc472a7a8cf3c044c1da4b3
Reviewed-on: https://go-review.googlesource.com/c/go/+/519695
Reviewed-by: Mark Ryan <markdryan@rivosinc.com>
Reviewed-by: David Chase <drchase@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Meng Zhuo <mengzhuo1203@gmail.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2024-08-23 10:40:41 +00:00
Kir Kolyshkin
b2f3a427dd os: improve Getwd documentation
1. Replace "rooted path name" with a more accurate "absolute path name".
Using "absolute" seems to be preferred terminology on Unix. On Windows,
there are multiple roots in Windows, thus "a rooted path name" can be
one relative to a drive letter or a server name. Note that Windows'
GetCurrentDirectory documentation [1] also says "the absolute path to the
current directory".

2. Add a note about using $PWD on Unix.

[1]: https://learn.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-getcurrentdirectory

Change-Id: Ic310f0f8776ff059544789306ae5cfa1fa267b12
Reviewed-on: https://go-review.googlesource.com/c/go/+/607615
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2024-08-23 00:53:47 +00:00
Xiaolin Zhao
ea08952aa2 cmd/internal/obj/loong64: add support for instructions BSTRPICK.{W/D} and BSTRINS.{W/D}
Go asm syntax:
	BSTRPICK{W/V}	$msb, RJ, $lsb, RD
	BSTRINS{W/V}	$msb, RJ, $lsb, RD

Equivalent platform assembler syntax:
	bstrpick.{w/d}	rd, rj, $msb, $lsb
	bstrins.{w/d}	rd, rj, $msb, $lsb

Ref: https://loongson.github.io/LoongArch-Documentation/LoongArch-Vol1-EN.html

Change-Id: I8b89b766ed22a96da7d8d5b2b2873382a49208de
Reviewed-on: https://go-review.googlesource.com/c/go/+/604735
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
2024-08-23 00:53:08 +00:00
Kir Kolyshkin
10ed134afe os: improve Windows fixLongPath
CL 574695 added caching the os.Chdir argument for Windows, and used the
cached value to assess the length of the current working directory in
addExtendedPrefix (used by fixLongPath).

It did not take into account that Chdir can accept relative paths, and
thus the pathLength calculation in addExtendedPrefix can be wrong.

Let's only cache the os.Chdir argument if it's absolute, and clean the
cache otherwise, thus improving the correctness of fixLongPath.

For #41734
For #21782
For #36375

Change-Id: Ie24a5ed763a7aacc310666d2e4cbb8e298768670
Reviewed-on: https://go-review.googlesource.com/c/go/+/607437
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
Reviewed-by: Damien Neil <dneil@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Quim Muntal <quimmuntal@gmail.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-08-22 20:04:04 +00:00
Michael Matloob
d2879efd02 cmd/go: document unsettable GOTELEMETRY and GOTELEMETRYDIR go env vars
This change adds documentation to "go help telemetry" and "go help
environment" for the unsettable GOTELEMETRY and GOTELEMETRYDIR go env
variables.

For #68928

Change-Id: I8c139bd8585ffb0c45b9dd722ef6e7a9a33df192
Reviewed-on: https://go-review.googlesource.com/c/go/+/607855
Reviewed-by: Robert Findley <rfindley@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-08-22 17:40:30 +00:00
Michael Matloob
422f4705ca cmd/dist: set go version in bootstrap go.mod file
The commands to build the bootstrap toolchains and go commands are run
from modules created by two bootstrap go.mod files: one is used when
building toolchain1 and go_bootstrap, and the other is used for
toolchain2 and toolchain3, and the final build. Currently the first has
a go directive specifying go 1.20, and the second one does not have a go
directive at all. This affects the default GODEBUG setting when building
the final toolchain: the default GODEBUG value is based on the go
version of the go.mod file, and when the go.mod file does not have a
version it defaults to go1.16. We should set the go directive on the
bootstrap used for the second half of the builds to use the current go
verison from the std's go.mod file (which is the same as the version on
cmd's go.mod file).

The go.mod file used for the initial bootstrap should have a go
directive with the minimum version of the toolchain required for
bootstrapping. That version is the current version - 2 rounded down to
an even number.

For #64751
Fixes #68797

Change-Id: Ibdddf4bc36dc963291979d603c4f3fc55264f65b
Reviewed-on: https://go-review.googlesource.com/c/go/+/604799
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
2024-08-22 17:24:29 +00:00
qmuntal
c7faf7f514 runtime: fix nanotime1 on windows/arm
nanotime1 is broken on windows/arm since CL 526358, which
unintentionally removed a necessary instruction. It hasn't been
noticed till now because the there is no windows/arm builder.

This CL restores the instruction.

Fixes #68996.

Change-Id: I52ef6891a3bd8e608b8538f456d181e08f93efaa
Reviewed-on: https://go-review.googlesource.com/c/go/+/607776
Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2024-08-22 17:12:38 +00:00
Xiaolin Zhao
64a5d1d7de crypto/sha1: implement sha1block in hardware on loong64
goos: linux
goarch: loong64
pkg: crypto/sha1
cpu: Loongson-3A6000 @ 2500.00MHz
                 │  bench.old   │              bench.new              │
                 │    sec/op    │   sec/op     vs base                │
Hash8Bytes/New      489.8n ± 0%   280.6n ± 0%  -42.71% (p=0.000 n=20)
Hash8Bytes/Sum      496.6n ± 0%   288.9n ± 0%  -41.82% (p=0.000 n=20)
Hash320Bytes/New   2251.0n ± 0%   992.0n ± 0%  -55.93% (p=0.000 n=20)
Hash320Bytes/Sum   2258.0n ± 0%   998.0n ± 0%  -55.80% (p=0.000 n=20)
Hash1K/New          6.113µ ± 0%   2.583µ ± 0%  -57.75% (p=0.000 n=20)
Hash1K/Sum          6.117µ ± 0%   2.588µ ± 0%  -57.69% (p=0.000 n=20)
Hash8K/New          45.42µ ± 0%   18.79µ ± 0%  -58.63% (p=0.000 n=20)
Hash8K/Sum          45.43µ ± 0%   18.80µ ± 0%  -58.62% (p=0.000 n=20)
geomean             4.192µ        1.926µ       -54.05%

                 │  bench.old   │               bench.new               │
                 │     B/s      │     B/s       vs base                 │
Hash8Bytes/New     15.57Mi ± 0%   27.19Mi ± 0%   +74.59% (p=0.000 n=20)
Hash8Bytes/Sum     15.36Mi ± 0%   26.41Mi ± 0%   +71.88% (p=0.000 n=20)
Hash320Bytes/New   135.6Mi ± 0%   307.6Mi ± 0%  +126.90% (p=0.000 n=20)
Hash320Bytes/Sum   135.2Mi ± 0%   305.8Mi ± 0%  +126.22% (p=0.000 n=20)
Hash1K/New         159.8Mi ± 0%   378.1Mi ± 0%  +136.69% (p=0.000 n=20)
Hash1K/Sum         159.7Mi ± 0%   377.4Mi ± 0%  +136.38% (p=0.000 n=20)
Hash8K/New         172.0Mi ± 0%   415.8Mi ± 0%  +141.75% (p=0.000 n=20)
Hash8K/Sum         172.0Mi ± 0%   415.6Mi ± 0%  +141.65% (p=0.000 n=20)
geomean            87.09Mi        189.5Mi       +117.64%

goos: linux
goarch: loong64
pkg: crypto/sha1
cpu: Loongson-3A5000 @ 2500.00MHz
                 │  bench.old  │              bench.new              │
                 │   sec/op    │   sec/op     vs base                │
Hash8Bytes/New     565.9n ± 0%   374.5n ± 1%  -33.82% (p=0.000 n=20)
Hash8Bytes/Sum     571.3n ± 0%   366.7n ± 1%  -35.81% (p=0.000 n=20)
Hash320Bytes/New   2.662µ ± 0%   1.201µ ± 0%  -54.88% (p=0.000 n=20)
Hash320Bytes/Sum   2.662µ ± 0%   1.194µ ± 0%  -55.15% (p=0.000 n=20)
Hash1K/New         7.171µ ± 0%   3.084µ ± 0%  -56.99% (p=0.000 n=20)
Hash1K/Sum         7.171µ ± 0%   3.076µ ± 0%  -57.11% (p=0.000 n=20)
Hash8K/New         53.10µ ± 0%   22.24µ ± 0%  -58.12% (p=0.000 n=20)
Hash8K/Sum         53.09µ ± 0%   22.23µ ± 0%  -58.12% (p=0.000 n=20)
geomean            4.900µ        2.348µ       -52.08%

                 │  bench.old   │               bench.new               │
                 │     B/s      │     B/s       vs base                 │
Hash8Bytes/New     13.48Mi ± 0%   20.38Mi ± 1%   +51.10% (p=0.000 n=20)
Hash8Bytes/Sum     13.35Mi ± 0%   20.80Mi ± 1%   +55.82% (p=0.000 n=20)
Hash320Bytes/New   114.6Mi ± 0%   254.0Mi ± 1%  +121.61% (p=0.000 n=20)
Hash320Bytes/Sum   114.6Mi ± 0%   255.6Mi ± 0%  +123.00% (p=0.000 n=20)
Hash1K/New         136.2Mi ± 0%   316.7Mi ± 0%  +132.54% (p=0.000 n=20)
Hash1K/Sum         136.2Mi ± 0%   317.5Mi ± 0%  +133.19% (p=0.000 n=20)
Hash8K/New         147.1Mi ± 0%   351.3Mi ± 0%  +138.79% (p=0.000 n=20)
Hash8K/Sum         147.2Mi ± 0%   351.4Mi ± 0%  +138.78% (p=0.000 n=20)
geomean            74.51Mi        155.5Mi       +108.69%

Change-Id: I716babd19c18dc2c3314d972ced9d83de2d93cb2
Reviewed-on: https://go-review.googlesource.com/c/go/+/589775
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Qiqi Huang <huangqiqi@loongson.cn>
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2024-08-22 15:35:51 +00:00
Kir Kolyshkin
400e6b68b5 os: openDir: add O_DIRECTORY flag for unix
With this, ReadDir will fail a tad earlier (on open rather than on
readdir syscall). This should be the only effect of this change.

Change-Id: Icf2870f47ea6c19aad29670e78ba9bfcc13c0ac3
Reviewed-on: https://go-review.googlesource.com/c/go/+/588915
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
2024-08-22 15:01:14 +00:00
Joel Sing
4f18477db6 math/big: implement subVW in riscv64 assembly
This provides an assembly implementation of subVW for riscv64,
processing up to four words per loop, resulting in a significant
performance gain.

On a StarFive VisionFive 2:

                  │   subvw.1    │               subvw.2               │
                  │    sec/op    │   sec/op     vs base                │
SubVW/1-4            57.43n ± 0%   41.45n ± 0%  -27.82% (p=0.000 n=10)
SubVW/2-4            69.31n ± 0%   48.15n ± 0%  -30.53% (p=0.000 n=10)
SubVW/3-4            76.12n ± 0%   54.87n ± 0%  -27.92% (p=0.000 n=10)
SubVW/4-4            85.47n ± 0%   56.14n ± 0%  -34.32% (p=0.000 n=10)
SubVW/5-4            96.15n ± 0%   62.83n ± 0%  -34.65% (p=0.000 n=10)
SubVW/10-4          149.60n ± 0%   89.55n ± 0%  -40.14% (p=0.000 n=10)
SubVW/100-4         1115.0n ± 0%   549.3n ± 0%  -50.74% (p=0.000 n=10)
SubVW/1000-4        10.732µ ± 0%   5.071µ ± 0%  -52.75% (p=0.000 n=10)
SubVW/10000-4        153.0µ ± 0%   103.7µ ± 0%  -32.21% (p=0.000 n=10)
SubVW/100000-4       1.542m ± 0%   1.046m ± 0%  -32.13% (p=0.000 n=10)
SubVWext/1-4         57.42n ± 0%   41.45n ± 0%  -27.81% (p=0.000 n=10)
SubVWext/2-4         69.33n ± 0%   48.15n ± 0%  -30.55% (p=0.000 n=10)
SubVWext/3-4         76.12n ± 0%   54.93n ± 0%  -27.84% (p=0.000 n=10)
SubVWext/4-4         85.47n ± 0%   56.14n ± 0%  -34.32% (p=0.000 n=10)
SubVWext/5-4         96.15n ± 0%   62.83n ± 0%  -34.65% (p=0.000 n=10)
SubVWext/10-4       149.60n ± 0%   89.56n ± 0%  -40.14% (p=0.000 n=10)
SubVWext/100-4      1115.0n ± 0%   549.3n ± 0%  -50.74% (p=0.000 n=10)
SubVWext/1000-4     10.732µ ± 0%   5.061µ ± 0%  -52.84% (p=0.000 n=10)
SubVWext/10000-4     152.5µ ± 0%   103.7µ ± 0%  -32.02% (p=0.000 n=10)
SubVWext/100000-4    1.533m ± 0%   1.046m ± 0%  -31.75% (p=0.000 n=10)
geomean              1.005µ        633.7n       -36.92%

                  │   subvw.1    │                subvw.2                 │
                  │     B/s      │      B/s       vs base                 │
SubVW/1-4           132.9Mi ± 0%    184.1Mi ± 0%   +38.54% (p=0.000 n=10)
SubVW/2-4           220.1Mi ± 0%    316.9Mi ± 0%   +43.95% (p=0.000 n=10)
SubVW/3-4           300.7Mi ± 0%    417.1Mi ± 0%   +38.72% (p=0.000 n=10)
SubVW/4-4           357.1Mi ± 0%    543.6Mi ± 0%   +52.24% (p=0.000 n=10)
SubVW/5-4           396.7Mi ± 0%    607.2Mi ± 0%   +53.03% (p=0.000 n=10)
SubVW/10-4          510.1Mi ± 0%    851.9Mi ± 0%   +67.01% (p=0.000 n=10)
SubVW/100-4         684.2Mi ± 0%   1388.9Mi ± 0%  +102.99% (p=0.000 n=10)
SubVW/1000-4        710.9Mi ± 0%   1504.5Mi ± 0%  +111.63% (p=0.000 n=10)
SubVW/10000-4       498.7Mi ± 0%    735.7Mi ± 0%   +47.52% (p=0.000 n=10)
SubVW/100000-4      494.8Mi ± 0%    729.1Mi ± 0%   +47.34% (p=0.000 n=10)
SubVWext/1-4        132.9Mi ± 0%    184.1Mi ± 0%   +38.53% (p=0.000 n=10)
SubVWext/2-4        220.1Mi ± 0%    316.9Mi ± 0%   +44.00% (p=0.000 n=10)
SubVWext/3-4        300.7Mi ± 0%    416.7Mi ± 0%   +38.57% (p=0.000 n=10)
SubVWext/4-4        357.1Mi ± 0%    543.6Mi ± 0%   +52.24% (p=0.000 n=10)
SubVWext/5-4        396.7Mi ± 0%    607.2Mi ± 0%   +53.04% (p=0.000 n=10)
SubVWext/10-4       510.1Mi ± 0%    851.9Mi ± 0%   +67.01% (p=0.000 n=10)
SubVWext/100-4      684.2Mi ± 0%   1388.9Mi ± 0%  +102.99% (p=0.000 n=10)
SubVWext/1000-4     710.9Mi ± 0%   1507.6Mi ± 0%  +112.07% (p=0.000 n=10)
SubVWext/10000-4    500.1Mi ± 0%    735.7Mi ± 0%   +47.10% (p=0.000 n=10)
SubVWext/100000-4   497.8Mi ± 0%    729.4Mi ± 0%   +46.52% (p=0.000 n=10)
geomean             387.6Mi         614.5Mi        +58.51%

Change-Id: I9d7fac719e977710ad9db9121fa298db6df605de
Reviewed-on: https://go-review.googlesource.com/c/go/+/595398
Reviewed-by: Mark Ryan <markdryan@rivosinc.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Meng Zhuo <mengzhuo1203@gmail.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-08-22 13:19:44 +00:00
Joel Sing
c6f56985ad math/big: implement addVW in riscv64 assembly
This provides an assembly implementation of addVW for riscv64,
processing up to four words per loop, resulting in a significant
performance gain.

On a StarFive VisionFive 2:

                  │   addvw.1    │               addvw.2               │
                  │    sec/op    │   sec/op     vs base                │
AddVW/1-4            57.43n ± 0%   41.45n ± 0%  -27.83% (p=0.000 n=10)
AddVW/2-4            69.31n ± 0%   48.15n ± 0%  -30.53% (p=0.000 n=10)
AddVW/3-4            76.12n ± 0%   54.97n ± 0%  -27.79% (p=0.000 n=10)
AddVW/4-4            85.47n ± 0%   56.14n ± 0%  -34.32% (p=0.000 n=10)
AddVW/5-4            96.16n ± 0%   62.82n ± 0%  -34.67% (p=0.000 n=10)
AddVW/10-4          149.60n ± 0%   89.55n ± 0%  -40.14% (p=0.000 n=10)
AddVW/100-4         1115.0n ± 0%   549.3n ± 0%  -50.74% (p=0.000 n=10)
AddVW/1000-4        10.732µ ± 0%   5.060µ ± 0%  -52.85% (p=0.000 n=10)
AddVW/10000-4        151.7µ ± 0%   103.7µ ± 0%  -31.63% (p=0.000 n=10)
AddVW/100000-4       1.523m ± 0%   1.050m ± 0%  -31.03% (p=0.000 n=10)
AddVWext/1-4         57.42n ± 0%   41.45n ± 0%  -27.81% (p=0.000 n=10)
AddVWext/2-4         69.32n ± 0%   48.15n ± 0%  -30.54% (p=0.000 n=10)
AddVWext/3-4         76.12n ± 0%   54.87n ± 0%  -27.92% (p=0.000 n=10)
AddVWext/4-4         85.47n ± 0%   56.14n ± 0%  -34.32% (p=0.000 n=10)
AddVWext/5-4         96.15n ± 0%   62.82n ± 0%  -34.66% (p=0.000 n=10)
AddVWext/10-4       149.60n ± 0%   89.55n ± 0%  -40.14% (p=0.000 n=10)
AddVWext/100-4      1115.0n ± 0%   549.3n ± 0%  -50.74% (p=0.000 n=10)
AddVWext/1000-4     10.732µ ± 0%   5.060µ ± 0%  -52.85% (p=0.000 n=10)
AddVWext/10000-4     150.5µ ± 0%   103.7µ ± 0%  -31.10% (p=0.000 n=10)
AddVWext/100000-4    1.530m ± 0%   1.049m ± 0%  -31.41% (p=0.000 n=10)
geomean              1.003µ        633.9n       -36.79%

                  │   addvw.1    │                addvw.2                 │
                  │     B/s      │      B/s       vs base                 │
AddVW/1-4           132.8Mi ± 0%    184.1Mi ± 0%   +38.55% (p=0.000 n=10)
AddVW/2-4           220.1Mi ± 0%    316.9Mi ± 0%   +43.96% (p=0.000 n=10)
AddVW/3-4           300.7Mi ± 0%    416.4Mi ± 0%   +38.48% (p=0.000 n=10)
AddVW/4-4           357.1Mi ± 0%    543.6Mi ± 0%   +52.25% (p=0.000 n=10)
AddVW/5-4           396.7Mi ± 0%    607.2Mi ± 0%   +53.06% (p=0.000 n=10)
AddVW/10-4          510.1Mi ± 0%    852.0Mi ± 0%   +67.02% (p=0.000 n=10)
AddVW/100-4         684.1Mi ± 0%   1389.0Mi ± 0%  +103.03% (p=0.000 n=10)
AddVW/1000-4        710.9Mi ± 0%   1507.8Mi ± 0%  +112.08% (p=0.000 n=10)
AddVW/10000-4       503.1Mi ± 0%    735.8Mi ± 0%   +46.26% (p=0.000 n=10)
AddVW/100000-4      501.0Mi ± 0%    726.5Mi ± 0%   +45.00% (p=0.000 n=10)
AddVWext/1-4        132.9Mi ± 0%    184.1Mi ± 0%   +38.55% (p=0.000 n=10)
AddVWext/2-4        220.1Mi ± 0%    316.9Mi ± 0%   +43.98% (p=0.000 n=10)
AddVWext/3-4        300.7Mi ± 0%    417.1Mi ± 0%   +38.73% (p=0.000 n=10)
AddVWext/4-4        357.1Mi ± 0%    543.6Mi ± 0%   +52.25% (p=0.000 n=10)
AddVWext/5-4        396.7Mi ± 0%    607.2Mi ± 0%   +53.05% (p=0.000 n=10)
AddVWext/10-4       510.1Mi ± 0%    852.0Mi ± 0%   +67.02% (p=0.000 n=10)
AddVWext/100-4      684.2Mi ± 0%   1389.0Mi ± 0%  +103.02% (p=0.000 n=10)
AddVWext/1000-4     710.9Mi ± 0%   1507.7Mi ± 0%  +112.08% (p=0.000 n=10)
AddVWext/10000-4    506.9Mi ± 0%    735.8Mi ± 0%   +45.15% (p=0.000 n=10)
AddVWext/100000-4   498.6Mi ± 0%    727.0Mi ± 0%   +45.79% (p=0.000 n=10)
geomean             388.3Mi         614.3Mi        +58.19%

Change-Id: Ib14a4b8c1d81e710753bbf6dd5546bbca44fe3f1
Reviewed-on: https://go-review.googlesource.com/c/go/+/595397
Reviewed-by: Meng Zhuo <mengzhuo1203@gmail.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Mark Ryan <markdryan@rivosinc.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
2024-08-22 13:19:28 +00:00
Joel Sing
1a7a85359e cmd/compile/internal/ssagen: add initial test coverage for intrinsics
Add basic test coverage for the intrinisic table - this at least allows
us to tell if intrinsics are added or removed unexpectedly. Code
generation changes resulting from intrinsics is not covered and is
left for test/codegen and others.

Change-Id: I3d538708b90cd04d3f449945e0fd9388097d683e
Reviewed-on: https://go-review.googlesource.com/c/go/+/605475
Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: David Chase <drchase@google.com>
2024-08-22 13:16:20 +00:00
Xiaolin Zhao
6edc1c23ed crypto/md5: implement md5block in hardware on loong64
goos: linux
goarch: loong64
pkg: crypto/md5
cpu: Loongson-3A6000 @ 2500.00MHz
                    │  bench.old   │              bench.new              │
                    │    sec/op    │   sec/op     vs base                │
Hash8Bytes             276.6n ± 0%   219.7n ± 0%  -20.57% (p=0.000 n=20)
Hash64                 445.8n ± 0%   339.9n ± 0%  -23.76% (p=0.000 n=20)
Hash128                632.0n ± 0%   468.1n ± 0%  -25.93% (p=0.000 n=20)
Hash256               1005.0n ± 0%   723.8n ± 0%  -27.98% (p=0.000 n=20)
Hash512                1.749µ ± 0%   1.238µ ± 0%  -29.22% (p=0.000 n=20)
Hash1K                 3.238µ ± 0%   2.265µ ± 0%  -30.05% (p=0.000 n=20)
Hash8K                 24.09µ ± 0%   16.66µ ± 0%  -30.83% (p=0.000 n=20)
Hash1M                 3.049m ± 0%   2.105m ± 0%  -30.97% (p=0.000 n=20)
Hash8M                 24.39m ± 0%   16.84m ± 0%  -30.97% (p=0.000 n=20)
Hash8BytesUnaligned    284.1n ± 0%   227.2n ± 0%  -20.03% (p=0.000 n=20)
Hash1KUnaligned        3.238µ ± 0%   2.265µ ± 0%  -30.05% (p=0.000 n=20)
Hash8KUnaligned        24.09µ ± 0%   16.66µ ± 0%  -30.82% (p=0.000 n=20)
geomean                7.142µ        5.164µ       -27.70%

                    │  bench.old   │              bench.new               │
                    │     B/s      │     B/s       vs base                │
Hash8Bytes            27.58Mi ± 0%   34.73Mi ± 0%  +25.93% (p=0.000 n=20)
Hash64                136.9Mi ± 0%   179.6Mi ± 0%  +31.15% (p=0.000 n=20)
Hash128               193.1Mi ± 0%   260.8Mi ± 0%  +35.03% (p=0.000 n=20)
Hash256               243.0Mi ± 0%   337.3Mi ± 0%  +38.82% (p=0.000 n=20)
Hash512               279.1Mi ± 0%   394.3Mi ± 0%  +41.25% (p=0.000 n=20)
Hash1K                301.6Mi ± 0%   431.1Mi ± 0%  +42.94% (p=0.000 n=20)
Hash8K                324.3Mi ± 0%   468.9Mi ± 0%  +44.56% (p=0.000 n=20)
Hash1M                327.9Mi ± 0%   475.0Mi ± 0%  +44.86% (p=0.000 n=20)
Hash8M                328.0Mi ± 0%   475.1Mi ± 0%  +44.86% (p=0.000 n=20)
Hash8BytesUnaligned   26.86Mi ± 0%   33.58Mi ± 0%  +25.04% (p=0.000 n=20)
Hash1KUnaligned       301.6Mi ± 0%   431.1Mi ± 0%  +42.95% (p=0.000 n=20)
Hash8KUnaligned       324.3Mi ± 0%   468.9Mi ± 0%  +44.56% (p=0.000 n=20)
geomean               182.5Mi        252.4Mi       +38.31%

goos: linux
goarch: loong64
pkg: crypto/md5
cpu: Loongson-3A5000 @ 2500.00MHz
                    │  bench.old   │              bench.new              │
                    │    sec/op    │   sec/op     vs base                │
Hash8Bytes             346.0n ± 0%   289.1n ± 0%  -16.45% (p=0.000 n=20)
Hash64                 521.2n ± 0%   409.3n ± 0%  -21.47% (p=0.000 n=20)
Hash128                707.1n ± 0%   537.8n ± 0%  -23.94% (p=0.000 n=20)
Hash256               1080.0n ± 0%   795.8n ± 0%  -26.31% (p=0.000 n=20)
Hash512                1.826µ ± 0%   1.311µ ± 0%  -28.20% (p=0.000 n=20)
Hash1K                 3.315µ ± 0%   2.342µ ± 0%  -29.35% (p=0.000 n=20)
Hash8K                 24.19µ ± 0%   16.78µ ± 0%  -30.65% (p=0.000 n=20)
Hash1M                 3.052m ± 0%   2.110m ± 0%  -30.86% (p=0.000 n=20)
Hash8M                 24.41m ± 0%   16.88m ± 0%  -30.85% (p=0.000 n=20)
Hash8BytesUnaligned    345.9n ± 0%   289.0n ± 0%  -16.45% (p=0.000 n=20)
Hash1KUnaligned        3.316µ ± 0%   2.342µ ± 0%  -29.37% (p=0.000 n=20)
Hash8KUnaligned        24.19µ ± 0%   16.78µ ± 0%  -30.66% (p=0.000 n=20)
geomean                7.673µ        5.648µ       -26.39%

                    │  bench.old   │              bench.new               │
                    │     B/s      │     B/s       vs base                │
Hash8Bytes            22.05Mi ± 0%   26.39Mi ± 0%  +19.68% (p=0.000 n=20)
Hash64                117.1Mi ± 0%   149.1Mi ± 0%  +27.32% (p=0.000 n=20)
Hash128               172.6Mi ± 0%   227.0Mi ± 0%  +31.49% (p=0.000 n=20)
Hash256               226.0Mi ± 0%   306.8Mi ± 0%  +35.77% (p=0.000 n=20)
Hash512               267.4Mi ± 0%   372.5Mi ± 0%  +39.26% (p=0.000 n=20)
Hash1K                294.6Mi ± 0%   417.0Mi ± 0%  +41.53% (p=0.000 n=20)
Hash8K                322.9Mi ± 0%   465.7Mi ± 0%  +44.20% (p=0.000 n=20)
Hash1M                327.7Mi ± 0%   474.0Mi ± 0%  +44.64% (p=0.000 n=20)
Hash8M                327.8Mi ± 0%   474.1Mi ± 0%  +44.62% (p=0.000 n=20)
Hash8BytesUnaligned   22.06Mi ± 0%   26.40Mi ± 0%  +19.67% (p=0.000 n=20)
Hash1KUnaligned       294.5Mi ± 0%   417.0Mi ± 0%  +41.60% (p=0.000 n=20)
Hash8KUnaligned       322.9Mi ± 0%   465.7Mi ± 0%  +44.21% (p=0.000 n=20)
geomean               169.9Mi        230.8Mi       +35.85%

Change-Id: Iffddd60e3fc0b3bb265289f836a2d875f0805f64
Reviewed-on: https://go-review.googlesource.com/c/go/+/589540
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
Reviewed-by: Qiqi Huang <huangqiqi@loongson.cn>
2024-08-22 01:18:23 +00:00
Kir Kolyshkin
4a9d98d49a syscall: optimize Getwd on aix
When looking for \0, use clen which may be optimized.

Also, return EINVAL when returned string is empty.

This makes it similar to how it is implemented in *bsd and solaris.

Change-Id: I3e37ed25f47110eafd12c80291f7746de9db7b23
Reviewed-on: https://go-review.googlesource.com/c/go/+/606902
TryBot-Bypass: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
2024-08-21 23:14:07 +00:00
Tobias Klauser
b5ee80a85a sort: drop implementation for Go <1.21
Now that Go 1.22.6 is the minimum bootstrap toolchain (cf. CL 606156),
the fallback implementation for Go versions <1.21 can be dropped.

For #61180
For #64751

Change-Id: Idfeca0a6e9f490e1ab0f308ead372612402923ea
Reviewed-on: https://go-review.googlesource.com/c/go/+/607315
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Commit-Queue: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
2024-08-21 21:18:47 +00:00
Vladimir Varankin
440c9ee73d testing: rename testContext to testState
Following up to CL 603959, update internals of testing package to
reduce the confusion around "context". The changes rename
testContext/benchContext/fuzzContext to testState/benchState/fuzzState.

Change-Id: Ib8855dab456d41ab343488fcf5fefff2431f7b72
Reviewed-on: https://go-review.googlesource.com/c/go/+/607555
Auto-Submit: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-08-21 20:52:09 +00:00
Manuel Sabin
31a9c13941 crypto/internal/cryptotest: add tests for the cipher.AEAD interface
This CL creates tests for the cipher.AEAD interface in the new
cryptotest package.  This set of tests is called from the tests of
implementations of the AEAD interface, such as the GCM blockmode.

Updates #25309

Change-Id: I7612fa6fb6c1505bdf1a2cd71180dd43dc50bf4a
Reviewed-on: https://go-review.googlesource.com/c/go/+/601778
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Auto-Submit: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Russell Webb <russell.webb@protonmail.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2024-08-21 20:24:47 +00:00
Srinivas Pokala
0d5605832c cmd/objdump: add s390x GNU disasm support
This CL provides vendor support for s390x disassembler gnu syntax.
go get golang.org/x/arch@master
go mod tidy
go mod vendor

For #15255

Change-Id: Ia75fa515e7ea7d56913a28147c65650a7ab3062c
Reviewed-on: https://go-review.googlesource.com/c/go/+/581015
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Vishwanatha HD <vishwanatha.hd@ibm.com>
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Auto-Submit: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Bill O'Farrell <billotosyr@gmail.com>
2024-08-21 20:01:18 +00:00
qmuntal
a96e736284 os/user: document Current improvements
Update #21867.
Update #68312.
Update #68647.

Change-Id: Ic41d6747c5a54ba28c1292258aa4d318ccb9fe40
Reviewed-on: https://go-review.googlesource.com/c/go/+/604395
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2024-08-21 19:59:22 +00:00