For 'case Array' in IsZero, check 'v.flag&flagIndir == 0' in the
first place, rename 'array' to 'typ' for consistency, and remove
stale comment.
Add line breaks for long sentence in isZero.
Change-Id: Id06d01fd61eefd205bf4626e6b920ae82b459455
GitHub-Last-Rev: 7225ca3f7b
GitHub-Pull-Request: golang/go#64270
Reviewed-on: https://go-review.googlesource.com/c/go/+/543656
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Run-TryBot: Jes Cok <xigua67damn@gmail.com>
Reviewed-by: Keith Randall <khr@golang.org>
Auto-Submit: Keith Randall <khr@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Apparently, on Windows, throwing an exception on a non-system-
allocated crash stack causes EXCEPTION_STACK_OVERFLOW and hangs
the process (see issue #63938). Disable crash stack for now, which
gets us back the the behavior of Go 1.21.
Fixes#63938.
Change-Id: I4c090315b93b484e756b242f0de7a9e02f199261
Reviewed-on: https://go-review.googlesource.com/c/go/+/543996
Reviewed-by: Michael Knyszek <mknyszek@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Cherry Mui <cherryyz@google.com>
Reviewed-by: Quim Muntal <quimmuntal@gmail.com>
This is inspired by CL 539915, I'm only submitting now that
CL 456435 has been merged.
This divide the number of objects kept alive by the heap by two
and remove the slice header allocation in New and in the put back.
Change-Id: Ibcd5166bac5a37f365a533e09a28f3b79f81ad58
Reviewed-on: https://go-review.googlesource.com/c/go/+/543515
Reviewed-by: Damien Neil <dneil@google.com>
Auto-Submit: Damien Neil <dneil@google.com>
Reviewed-by: qiulaidongfeng <2645477756@qq.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Change-Id: Iacbcb582e263149fede734822cba2df4b8162968
Reviewed-on: https://go-review.googlesource.com/c/go/+/544015
Reviewed-by: Cherry Mui <cherryyz@google.com>
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Run-TryBot: Tim King <taking@google.com>
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As of Go 1.19, runtime.GOROOT() reports the empty string if the binary
was built with -trimpath. cmd/go/internal/cfg uses the path of the go
command executable to reverse-engineer the correct GOROOT setting,
but that means that cmd/go's "GOPATH set to GOROOT" warning needs to
use cfg.GOROOT instead of runtime.GOROOT().
In addition, if we fail to find the GOROOT then there is no point in
complaining about GOPATH also being empty: the missing GOROOT will stop
everything right away anyway, so there is no point confusing the user
with an additional warning about GOPATH.
Updates #51461.
Updates #18678.
Updates #3207.
Change-Id: Id7d0f4dc2f229c202dfda4e6e8af5dea909bb16f
Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest,gotip-windows-amd64-longtest
Reviewed-on: https://go-review.googlesource.com/c/go/+/543955
Reviewed-by: Michael Matloob <matloob@golang.org>
Auto-Submit: Bryan Mills <bcmills@google.com>
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go get golang.org/x/tools@8966034e # CL 542639
go mod tidy
go mod vendor
Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest
Change-Id: Id2a7322006ff3985e3c97482cd78c8963c4df140
Reviewed-on: https://go-review.googlesource.com/c/go/+/543975
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Currently if morestack on g0 happens the wasm runtime prints
"RuntimeError: memory access out of bounds", which is quite misleading.
By switching to a crash stack we can get better stacktraces
for the error.
There is no way to automate tests for this feature on wasm, since
TestG0StackOverflow relies on spawning a subprocess which is not
supported by the wasm port.
The way I got this tested manually is to comment everything in
TestG0StackOverflow, leaving just runtime.G0StackOverflow().
Then it is a matter of invoking the test:
GOOS=js GOARCH=wasm go test runtime -v -run=TestG0StackOverflow
Change-Id: If450f3ee5209bb32efc1abd0a34b1cc4a29d0c46
GitHub-Last-Rev: 0d7c396e4c
GitHub-Pull-Request: golang/go#63956
Reviewed-on: https://go-review.googlesource.com/c/go/+/539995
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Reviewed-by: David Chase <drchase@google.com>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
CL 543657 dedup'd the go/defer statement recognition between the
inliner and static devirtualizer. This CL extends that for PGO-based
devirtualization too.
Change-Id: I998753132af1ef17329676f4e17515f16e0acb03
Reviewed-on: https://go-review.googlesource.com/c/go/+/543775
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
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Reviewed-by: Michael Pratt <mpratt@google.com>
This reverts commit 6382893890.
Reason for revert: Causes failures on big endian platforms and riscv64.
Possibly a bug in the generic implementation.
For #64284.
For #64285.
Change-Id: Ic1bb8533d9641fae28d0337b36d434b9a575cd7e
Reviewed-on: https://go-review.googlesource.com/c/go/+/543895
Reviewed-by: Heschi Kreinick <heschi@google.com>
Auto-Submit: Michael Knyszek <mknyszek@google.com>
TryBot-Bypass: Michael Knyszek <mknyszek@google.com>
This CL interleaves devirtualization and inlining, so that
devirtualized calls can be inlined.
Fixes#52193.
Change-Id: I681e7c55bdb90ebf6df315d334e7a58f05110d9c
Reviewed-on: https://go-review.googlesource.com/c/go/+/528321
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Bypass: Matthew Dempsky <mdempsky@google.com>
This change introduces new options to set the floating point
mode on ARM targets. The GOARM version number can optionally be
followed by ',hardfloat' or ',softfloat' to select whether to
use hardware instructions or software emulation for floating
point computations, respectively. For example,
GOARM=7,softfloat.
Previously, software floating point support was limited to
GOARM=5. With these options, software floating point is now
extended to all ARM versions, including GOARM=6 and 7. This
change also extends hardware floating point to GOARM=5.
GOARM=5 defaults to softfloat and GOARM=6 and 7 default to
hardfloat.
For #61588
Change-Id: I23dc86fbd0733b262004a2ed001e1032cf371e94
Reviewed-on: https://go-review.googlesource.com/c/go/+/514907
Run-TryBot: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Michael Knyszek <mknyszek@google.com>
Make it clear that the `block` argument is not always used, and stop
passing it in a case where it didn't really make sense - at the end of a
function.
Change-Id: I2fa86bed6ceb53a1b1cbfda5c3392e7e9da9579d
Reviewed-on: https://go-review.googlesource.com/c/go/+/502115
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Reviewed-by: David Chase <drchase@google.com>
os.OpenFile on windows did not use the O_SYNC flag. This meant
that even if the user set O_SYNC, os.OpenFile would ignore it.
This change adds a new flag FILE_FLAG_WRITE_THROUGH, which is
the equivalent of O_SYNC flag on Linux and is documented in
https://docs.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-createfileaFixes#35358
Change-Id: Ib338caed5bb2f215723bfe30a2551a83998d92c9
GitHub-Last-Rev: 82c6275cb4
GitHub-Pull-Request: golang/go#64027
Reviewed-on: https://go-review.googlesource.com/c/go/+/541015
Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: Emmanuel Odeke <emmanuel@orijtech.com>
Run-TryBot: Jes Cok <xigua67damn@gmail.com>
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Reviewed-by: Quim Muntal <quimmuntal@gmail.com>
Following CL 543035, this CL updates race syso for Linux/PPC64LE.
Now we have update all of them (except OpenBSD).
For #61395.
Fixes#62624.
Change-Id: I9e1d758355114a50ff206e5d78dc4ea8a06367d8
Reviewed-on: https://go-review.googlesource.com/c/go/+/543397
Run-TryBot: Cherry Mui <cherryyz@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: Mauri de Souza Meneguzzo <mauri870@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
There doesn't appear to be any need for this code. EditChildren won't
recurse into the closure body anyway.
Split out into a separate commit in case I'm overlooking something.
Change-Id: I004d1aa04865896de972bf3323b1622cc08a0d18
Reviewed-on: https://go-review.googlesource.com/c/go/+/543659
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
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Auto-Submit: Matthew Dempsky <mdempsky@google.com>
The early return here is meant to suppress inlining of the function
call itself. However, it also suppresses recursing to visit the call
arguments, which are safe to inline.
Change-Id: I75887574c00931cb622277d04a822bc84c29bfa2
Reviewed-on: https://go-review.googlesource.com/c/go/+/543658
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
The devirtualizer and inliner both want to recognize call expressions
that are part of a go or defer statement. This CL refactors them to
use a single CallExpr.GoDefer flag, which gets set during
normalization of go/defer statements during typecheck.
While here, drop some OCALLMETH assertions. Typecheck has been
responsible for desugaring them into OCALLFUNC for a while now, and
ssagen will check this again for us later anyway.
Change-Id: I3fc370f4417431aae97239313da6fe523f512a2e
Reviewed-on: https://go-review.googlesource.com/c/go/+/543657
Reviewed-by: Than McIntosh <thanm@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
This reverts commit go.dev/cl/528657.
Reason for revert: broke a lot of builders.
Change-Id: I70c33062020e997c4df67b3eaa2e886cf0da961e
Reviewed-on: https://go-review.googlesource.com/c/go/+/543660
Reviewed-by: Than McIntosh <thanm@google.com>
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Without having all the architectures implementing the And/Or operators
merged I can't proceed with the public sync/atomic apis. This CL adds a
generic implementation that should work for all the remaining arches,
while waiting for the native assembly implementations in CL 531835,
CL 531678, CL 531895.
I regret the oversight of not pushing this earlier.
For #61395
Change-Id: Ib2d67f359fe324b4743eb79e9c8e52e8f6f5476c
GitHub-Last-Rev: d350927ba1
GitHub-Pull-Request: golang/go#64214
Reviewed-on: https://go-review.googlesource.com/c/go/+/543175
Reviewed-by: Cherry Mui <cherryyz@google.com>
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Reviewed-by: David Chase <drchase@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
Wasmtime 14.0.0 introduced new CLI flags and removed the existing
flags, in particular the --max-wasm-stack flag we were using to avoid
errors in some tests.
This introduces a regular expression based switch that uses the old
flags for wasmtime versions < 14 and the new flags otherwise.
Fixes#63718
Change-Id: I44673e7d9f8729065757abdbf8c41e8a61897d6a
Reviewed-on: https://go-review.googlesource.com/c/go/+/541219
Reviewed-by: David Chase <drchase@google.com>
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Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Mauri de Souza Meneguzzo <mauri870@gmail.com>
For some types where the zero value is a value where all bits of this type are 0 optimize it.
goos: windows
goarch: amd64
pkg: reflect
cpu: AMD Ryzen 7 7840HS w/ Radeon 780M Graphics
│ old.txt │ new.txt │
│ sec/op │ sec/op vs base │
IsZero/StructInt_512-16 109.75n ± 0% 72.61n ± 1% -33.84% (p=0.000 n=12)
Change-Id: I56de8b95f4d4482068960d6f38938763fa1caa90
GitHub-Last-Rev: c143f0cd76
GitHub-Pull-Request: golang/go#64220
Reviewed-on: https://go-review.googlesource.com/c/go/+/543355
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
The panic message of the current implementation for index out of range is not ideal.
This PR tries to improve it.
Fixes#63913 and #64152
Change-Id: Ibcf6c9c0f555c8b8bf46b7d6f20f0ccc5698acd4
GitHub-Last-Rev: 1bbec230f4
GitHub-Pull-Request: golang/go#64163
Reviewed-on: https://go-review.googlesource.com/c/go/+/542455
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Keith Randall <khr@google.com>
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Reviewed-by: Keith Randall <khr@golang.org>
Auto-Submit: Keith Randall <khr@golang.org>
We can not use encoding/binary in hash packages because of import cycles.
So just keep the appendUint and readUint helper functions same as that
in the encoding/binary standard package.
There is no notable performance impacts.
Updates #63719
Change-Id: If47a7faaf9d422d772f32bbe1fa2f2c8a16485f4
GitHub-Last-Rev: f334fee408
GitHub-Pull-Request: golang/go#63746
Reviewed-on: https://go-review.googlesource.com/c/go/+/537796
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
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Reviewed-by: David Chase <drchase@google.com>
Makes Delete return early if no elements need to be deleted.
Change-Id: Id64f716b1529e9dd5972c920a54823dba75aafe9
GitHub-Last-Rev: 885c1afb5d
GitHub-Pull-Request: golang/go#63411
Reviewed-on: https://go-review.googlesource.com/c/go/+/533276
Reviewed-by: Keith Randall <khr@google.com>
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Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Change-Id: I8d1011509c4f0f529e97055280606603747a2e1a
Reviewed-on: https://go-review.googlesource.com/c/go/+/541775
Reviewed-by: Mauri de Souza Meneguzzo <mauri870@gmail.com>
Reviewed-by: Paul Murphy <murp@ibm.com>
Reviewed-by: David Chase <drchase@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
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Run-TryBot: Joel Sing <joel@sing.id.au>
Currently the final size computed for an object in mallocgc excludes the
allocation header. This is correct in a number of cases, but definitely
wrong for memory profiling because the "free" side accounts for the full
allocation slot.
This change makes an explicit distinction between the parts of mallocgc
that care about the full allocation slot size ("the GC's accounting")
and those that don't (pointer+len should always be valid). It then
applies the appropriate size to the different forms of accounting in
mallocgc.
For #64153.
Change-Id: I481b34b2bb9ff923b59e8408ab2b8fb9025ba944
Reviewed-on: https://go-review.googlesource.com/c/go/+/542735
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Add runtime-internal locks to the mutex contention profile.
Store up to one call stack responsible for lock contention on the M,
until it's safe to contribute its value to the mprof table. Try to use
that limited local storage space for a relatively large source of
contention, and attribute any contention in stacks we're not able to
store to a sentinel _LostContendedLock function.
Avoid ballooning lock contention while manipulating the mprof table by
attributing to that sentinel function any lock contention experienced
while reporting lock contention.
Guard collecting real call stacks with GODEBUG=profileruntimelocks=1,
since the available data has mixed semantics; we can easily capture an
M's own wait time, but we'd prefer for the profile entry of each
critical section to describe how long it made the other Ms wait. It's
too late in the Go 1.22 cycle to make the required changes to
futex-based locks. When not enabled, attribute the time to the sentinel
function instead.
Fixes#57071
Change-Id: I3eee0ccbfc20f333b56f20d8725dfd7f3a526b41
Reviewed-on: https://go-review.googlesource.com/c/go/+/528657
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Reviewed-by: Michael Pratt <mpratt@google.com>
Auto-Submit: Rhys Hiltner <rhys@justin.tv>
Reviewed-by: Than McIntosh <thanm@google.com>
A persistent performance regression was discovered on
perf.golang.org/dashboard and this was narrowed down to the switch to
footers. Using allocation headers instead resolves the issue.
The benchmark results for allocation footers weren't realistic, because
they were performed on a machine with enough L3 cache that it completely
hid the additional cache miss introduced by allocation footers.
This means that in some corner cases the Go runtime may no longer
allocate 16-byte aligned memory. Note however that this property was
*mostly* incidental and never guaranteed in any documentation.
Allocation headers were tested widely within Google and no issues were
found, so we're fairly confident that this will not affect very many
users.
Nonetheless, by Hyrum's Law some code might depend on it. A follow-up
change will add a GODEBUG flag that ensures 16 byte alignment at the
potential cost of some additional memory use. Users experiencing both a
performance regression and an alignment issue can also disable the
GOEXPERIMENT at build time.
This reverts commit 1e250a2199.
Change-Id: Ia7d62a9c60d1773c8b6d33322ee33a80ef814943
Reviewed-on: https://go-review.googlesource.com/c/go/+/543255
Auto-Submit: Michael Knyszek <mknyszek@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Previously, we used the presence of individual origin fields
to decide whether an Origin could be checked for staleness,
with a nil Origin representing “use whatever you have”.
However, that turns out to be fairly bug-prone: if we forget
to populate an Origin somewhere, we end up with an incomplete
check instead of a non-reusable origin (see #61415, #61423).
As of CL 543155, the reusability check for a given query
now depends on what is needed by the query more than what
is populated in the origin. With that in place, we can simplify
the handling of the Origin struct by using a nil pointer
to represent inconsistent or unavailable origin data, and
otherwise always reporting whatever origin information we have
regardless of whether we expect it to be reused.
Updates #61415.
Updates #61423.
Change-Id: I97c51063d6c2afa394a05bf304a80c72c08f82cf
Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest,gotip-windows-amd64-longtest
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Auto-Submit: Bryan Mills <bcmills@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
When 'go list' or 'go mod download' uses a proxy to resolve a version
query like "@latest", it may have origin metadata about the resolved
version but not about the inputs that would be needed to resolve the
same query without using the proxy.
We shouldn't just redact the incomplete information, because it might
be useful independent of the -reuse flag. Instead, we examine the
query to decide which origin information it ought to need, and avoid
reusing it if that information isn't included.
Fixes#61423.
Change-Id: Ibeaa46ebba284beee285cbb1898e271e5a5b257b
Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest,gotip-windows-amd64-longtest
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Reviewed-by: Michael Matloob <matloob@golang.org>
Commit-Queue: Bryan Mills <bcmills@google.com>
Auto-Submit: Bryan Mills <bcmills@google.com>
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getimpliedreg was used to set a default register in cases where
one was implied but not set by the assembler or compiler.
In most cases with constant values, R0 is implied, and is the value
0 by architectural design. In those cases, R0 is always used, so
treat 0 and REG_R0 as interchangeable in those encodings.
Similarly, the pseudo-register SP or FP is used to in place of the
stack pointer, always R1 on PPC64. Unconditionally set this during
classification of NAME_AUTO and NAME_PARAM as it may be 0.
The case where REGSB might be returned from getimpliedreg is never
used. REGSB is aliased to R2, but in practice it is either R0 or R2
depending on buildmode. See symbolAccess in asm9.go for an example.
Change-Id: I7283e66d5351f56a7fe04cee38714910eaa73cb3
Reviewed-on: https://go-review.googlesource.com/c/go/+/434775
Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com>
Reviewed-by: David Chase <drchase@google.com>
Run-TryBot: Paul Murphy <murp@ibm.com>
Reviewed-by: Than McIntosh <thanm@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
After CL 534937, the IsNotFound field is set to true on
nodata and NXDOMAIN conditions consistently across systems
and all lookup methods.
Change-Id: I419d1c818f17e915cee4959c3a9ac92c2e4bb92c
GitHub-Last-Rev: 59c537fc06
GitHub-Pull-Request: golang/go#63654
Reviewed-on: https://go-review.googlesource.com/c/go/+/536775
Reviewed-by: Damien Neil <dneil@google.com>
Auto-Submit: Damien Neil <dneil@google.com>
Reviewed-by: David Chase <drchase@google.com>
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Slightly simplifies the code and avoids human error.
Change-Id: Ib76575e8bc5b3a699ba6cc3870d63cd7a55e6416
Reviewed-on: https://go-review.googlesource.com/c/go/+/541476
Reviewed-by: David Chase <drchase@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
This change enhances the zstd Reader's skipFrame function to validate
the new offset when skipping frames in a seekable stream, preventing
invalid offsets that could occur previously.
A set of "bad" test strings has been added to fuzz_test.go to extend
the robustness checks against potential decompression panics.
Additionally, a new test named TestReaderBad is introduced in
zstd_test.go to verify proper error handling with corrupted input
strings.
The BenchmarkLarge function has also been refactored for clarity,
removing unnecessary timer stops and resets.
Updates #63824
Change-Id: Iccd248756ad6348afa1395c7799350d07402868a
GitHub-Last-Rev: 63055b91e9
GitHub-Pull-Request: golang/go#64056
Reviewed-on: https://go-review.googlesource.com/c/go/+/541220
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Klaus Post <klauspost@gmail.com>
Auto-Submit: Bryan Mills <bcmills@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
This was supposed to be removed in CL 539155 already.
Change-Id: I22be1a72d5d8eb02514045609429e706c344d5fc
Reviewed-on: https://go-review.googlesource.com/c/go/+/542915
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Joel Sing <joel@sing.id.au>
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
hex is in fact immutable, declare it as a const to avoid accidental
modification, also for consistency with other packages.
Change-Id: I88a6fed34d27ac57a0332dc7a27d3bf2ba0d6272
GitHub-Last-Rev: 08712be2d4
GitHub-Pull-Request: golang/go#64069
Reviewed-on: https://go-review.googlesource.com/c/go/+/541518
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Jonathan Amsterdam <jba@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
