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Change-Id: Ie06bc8d8e8e170f13ed938a33038931513eaf067
Reviewed-on: https://go-review.googlesource.com/c/go/+/533238
Auto-Submit: Gopher Robot <gobot@golang.org>
Reviewed-by: Michael Pratt <mpratt@google.com>
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Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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For #23672
Updates #63211
Fixes #63214
Fixes CVE-2023-39323
Change-Id: I4586a69e1b2560036afec29d53e53cf25e6c7352
Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/2032884
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Roland Shoemaker <bracewell@google.com>
(cherry picked from commit 9b19e751918dd218035811b1ef83a8c2693b864a)
Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/2037958
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Tatiana Bradley <tatianabradley@google.com>
Run-TryBot: Roland Shoemaker <bracewell@google.com>
Reviewed-on: https://go-review.googlesource.com/c/go/+/533215
Reviewed-by: Than McIntosh <thanm@google.com>
Auto-Submit: Michael Pratt <mpratt@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Unfortunately, there isn't a single op that provides the resulting
computation.
At least, I couldn't find one.
Fixes #62506
Change-Id: I236f3965b827aaeb3d70ef9fe89be66b116494f5
Reviewed-on: https://go-review.googlesource.com/c/go/+/526276
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Reviewed-by: Keith Randall <khr@google.com>
(cherry picked from commit fb5bdb4cc94d23209d77a73c4148b3f9fbb10173)
Reviewed-on: https://go-review.googlesource.com/c/go/+/526521
Reviewed-by: Than McIntosh <thanm@google.com>
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basic blocks
Not sure why this bug didn't cause a complete failure, but it
certainly makes for doing a lot more work than is necessary.
Fixes #62668
Change-Id: If0be4acb6eafc3d7eeb42d2f4263c21b4e6e1c7d
Reviewed-on: https://go-review.googlesource.com/c/go/+/527699
Reviewed-by: David Chase <drchase@google.com>
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Reviewed-by: Heschi Kreinick <heschi@google.com>
(cherry picked from commit 08cdfd06ed1ca21f3b8c95361506ab94c429b622)
Reviewed-on: https://go-review.googlesource.com/c/go/+/528795
Reviewed-by: Keith Randall <khr@google.com>
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Right now debuggers like Delve rely on the new goroutine created to run
a debugcall function to run on the same thread it started on, up until
it hits itself with a SIGINT as part of the debugcall protocol.
That's all well and good, except debugCallWrap1 isn't particularly
careful about not growing the stack. For example, if the new goroutine
happens to have a stale preempt flag, then it's possible a stack growth
will cause a roundtrip into the scheduler, possibly causing the
goroutine to switch to another thread.
Previous attempts to just be more careful around debugCallWrap1 were
helpful, but insufficient. This change takes everything a step further
and always locks the debug call goroutine and the new goroutine it
creates to the OS thread.
For #61732.
Fixes #62509.
Change-Id: I038f3a4df30072833e27e6a5a1ec01806a32891f
Reviewed-on: https://go-review.googlesource.com/c/go/+/515637
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(cherry picked from commit d9a4b24a1775c4c5baa4ce3005cb5af61346198e)
Reviewed-on: https://go-review.googlesource.com/c/go/+/526576
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Currently, for non-cgo programs, the g0 stack size is 8 KiB on
most platforms. With PGO which could cause aggressive inlining in
the runtime, the runtime stack frames are larger and could
overflow the 8 KiB g0 stack. Increase it to 16 KiB. This is only
one per OS thread, so it shouldn't increase memory use much.
Updates #62120.
Updates #62489.
Fixes #62537.
Change-Id: I565b154517021f1fd849424dafc3f0f26a755cac
Reviewed-on: https://go-review.googlesource.com/c/go/+/526995
Reviewed-by: Michael Pratt <mpratt@google.com>
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(cherry picked from commit c6d550a6683cebb2a11d7fa91823edf7db1d58a5)
Reviewed-on: https://go-review.googlesource.com/c/go/+/527055
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for ld-prime
ld-prime emits a deprecation warning for -bind_at_load. The flag
is needed for plugins to not deadlock (#38824) when linking with
older darwin linker. It is supposedly not needed with newer linker
when chained fixups are used. For now, we always pass it, and
suppress the warning.
Updates #61229.
For #62598.
Change-Id: I4b8a6f864a460c40dc38adbb533f664f7fd5343c
Reviewed-on: https://go-review.googlesource.com/c/go/+/508696
Reviewed-by: Than McIntosh <thanm@google.com>
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(cherry picked from commit 040dbf9c181a0e3ea9f7bd3ebe3f75acdc878aaf)
Reviewed-on: https://go-review.googlesource.com/c/go/+/527817
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on darwin
[This is a (manual) backport of CL 527415 to Go 1.21.]
Currently, linking a Go c-shared object with C code using Apple's
new linker, it fails with
% cc a.c go.so
ld: segment '__DWARF' filesize exceeds vmsize in 'go.so'
Apple's new linker has more checks for unmapped segments. It is
very hard to make it accept a Mach-O shared object with an
additional DWARF segment.
We may want to stop combinding DWARF into the shared object (see
also #62577). For now, disable DWARF by default in c-shared mode
on darwin.
Updates #61229.
For #62598.
Change-Id: I525987b7fe1a4e64571327cb4696f98cc7b419a1
Reviewed-on: https://go-review.googlesource.com/c/go/+/527816
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There are some bugs in Apple's new linker that causes plugins to
be built incorrectly. And the bugs probably will not be fixed when
Xcode 15 is released (some time soon). Force old Apple linker to
work around.
Updates #61229.
For #62598.
Change-Id: I01ba5caadec6dc14f8c85dd02f78c1ed2e8b7d4d
Reviewed-on: https://go-review.googlesource.com/c/go/+/527815
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programs using plugins
If a program imports the plugin package, the mechanisms in place for
detecting and deleting unused global map variables are no longer safe,
since it's possibly for a given global map var to be unreferenced in
the main program but referenced by a plugin. This patch changes the
linker to test for plugin use and to avoid removing any unused global
map variables if the main program could possibly load up a plugin.
Fixes #62505.
Updates #62430.
Change-Id: Ie00b18b681cb0d259e3c859ac947ade5778cd6c8
(cherry picked from commit 660620dd45dc11f2d889add79bedf2dc771c7d04)
Reviewed-on: https://go-review.googlesource.com/c/go/+/526575
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user's PATH
This test checks a behavior of GOTOOLCHAIN when an appropriate
toolchain is found in PATH. That requires it to exclude any suitable
toolchain binaries from the user's $PATH, which may otherwise
interfere.
Fixes #62711.
Updates #62709.
Change-Id: Ie9161e52d33a65be0b5265cb49e9f2bc8473e057
Reviewed-on: https://go-review.googlesource.com/c/go/+/529217
Auto-Submit: Bryan Mills <bcmills@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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(cherry picked from commit 30886b1b1ea0ff0282419e4deefdd35a51b2c9fc)
Reviewed-on: https://go-review.googlesource.com/c/go/+/529435
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In the existing implementation, all /gc/scan/* metrics are
always equal to 0 due to the dependency on gcStatDep not being
set. This leads to gcStatAggregate always containing zeros, and
always reporting 0 for those metrics.
Also, add a test to ensure that /gc/scan/* metrics are not empty.
For #62477.
Fixes #62478.
Change-Id: I67497347d50ed5c3ce1719a18714c062ec938cab
Reviewed-on: https://go-review.googlesource.com/c/go/+/526116
Reviewed-by: Michael Pratt <mpratt@google.com>
Auto-Submit: Heschi Kreinick <heschi@google.com>
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Prior to CL 458218, gentraceback ignored the SPWrite function flag on
the innermost frame when doing a precise traceback on the assumption
that precise tracebacks could only be started from the morestack
prologue, and that meant that the innermost function could not have
modified SP yet.
CL 458218 rearranged this logic a bit and unintentionally lost this
particular case. As a result, if traceback starts in an assembly
function that modifies SP (either as a result of stack growth or stack
scanning during a GC preemption), traceback stop at the SPWrite
function and then crash with "traceback did not unwind completely".
Fix this by restoring the earlier special case for when the innermost
frame is SPWrite.
This is a fairly minimal change that should be easy to backport. I
think a more robust change would be to encode this per-PC in the
spdelta table, so it would be clear that we're unwinding from the
morestack prologue and wouldn't rely on a complicated and potentially
fragile set of conditions.
Fixes #62464.
Change-Id: I34f38157631890d33a79d0bd32e32c0fcc2574e4
Reviewed-on: https://go-review.googlesource.com/c/go/+/526100
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Change-Id: I1c208f9cd77af66e98a4d159c2e6c3b6072ea7ec
Reviewed-on: https://go-review.googlesource.com/c/go/+/526039
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the script context
The HTML specification has incredibly complex rules for how to handle
"<!--", "<script", and "</script" when they appear within literals in
the script context. Rather than attempting to apply these restrictions
(which require a significantly more complex state machine) we apply
the workaround suggested in section 4.12.1.3 of the HTML specification [1].
More precisely, when "<!--", "<script", and "</script" appear within
literals (strings and regular expressions, ignoring comments since we
already elide their content) we replace the "<" with "\x3C". This avoids
the unintuitive behavior that using these tags within literals can cause,
by simply preventing the rendered content from triggering it. This may
break some correct usages of these tags, but on balance is more likely
to prevent XSS attacks where users are unknowingly either closing or not
closing the script blocks where they think they are.
Thanks to Takeshi Kaneko (GMO Cybersecurity by Ierae, Inc.) for
reporting this issue.
Fixes #62197
Fixes #62398
Fixes CVE-2023-39319
[1] https://html.spec.whatwg.org/#restrictions-for-contents-of-script-elements
Change-Id: Iab57b0532694827e3eddf57a7497ba1fab1746dc
Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/1976594
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Tatiana Bradley <tatianabradley@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
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contexts
Per Appendix B.1.1 of the ECMAScript specification, support HTML-like
comments in script contexts. Also per section 12.5, support hashbang
comments. This brings our parsing in-line with how browsers treat these
comment types.
Thanks to Takeshi Kaneko (GMO Cybersecurity by Ierae, Inc.) for
reporting this issue.
Fixes #62196
Fixes #62396
Fixes CVE-2023-39318
Change-Id: Id512702c5de3ae46cf648e268cb10e1eb392a181
Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/1976593
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separators
If GOTOOLCHAIN="path" or "auto", the go command uses exec.LookPath to
search for it in order to allow toolchains to refer to local-only
toolchain variants (such as toolchains built from enterprise- or
distro-patched source). However, those toolchains should only be
resolved from $PATH, not relative to the working directory of the
command.
Thanks to Juho Nurminen of Mattermost for reporting this issue.
Fixes #62198.
Fixes #62394.
Fixes CVE-2023-39320.
Change-Id: I247c7acea95d737362dd0475e9fc8515430d0fcc
Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/1996318
Run-TryBot: Roland Shoemaker <bracewell@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Roland Shoemaker <bracewell@google.com>
(cherry picked from commit e41c0a55d45e9a9acbc5d7c1143ea4fff8fb9283)
Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/2014013
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wasm"
CL 458395 added support for streaming POST content in Wasm.
Unfortunately, this breaks requests to servers that only support HTTP/1.1.
Revert the change until a suitable fallback or opt-in strategy can be decided.
For #61889.
Fixes #62328.
Change-Id: If53a77e1890132063b39abde867d34515d4ac2af
Reviewed-on: https://go-review.googlesource.com/c/go/+/522955
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recovering from panic
When recovering from a panic, restore the caller's frame pointer before
returning control to the caller. Otherwise, if the function proceeds to
run more deferred calls before returning, the deferred functions will
get invalid frame pointers pointing to an address lower in the stack.
This can cause frame pointer unwinding to crash, such as if an execution
trace event is recorded during the deferred call on architectures which
support frame pointer unwinding.
Original CL by Nick Ripley, includes fix from CL 523697, and includes a
test update from CL 524315.
This CL also deviates from the original fix by doing some extra
computation to figure out the fp from the sp, since we don't have the fp
immediately available to us in `recovery` on the Go 1.21 branch, and it
would probably be complicated to plumb that through its caller.
For #61766
Fixes #62046
Change-Id: I5a99ca4f909f6b6e209a330d595d1c99987d4359
Reviewed-on: https://go-review.googlesource.com/c/go/+/523698
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Currently the runtime marks all new memory as MADV_HUGEPAGE on Linux and
manages its hugepage eligibility status. Unfortunately, the default
THP behavior on most Linux distros is that MADV_HUGEPAGE blocks while
the kernel eagerly reclaims and compacts memory to allocate a hugepage.
This direct reclaim and compaction is unbounded, and may result in
significant application thread stalls. In really bad cases, this can
exceed 100s of ms or even seconds.
Really all we want is to undo MADV_NOHUGEPAGE marks and let the default
Linux paging behavior take over, but the only way to unmark a region as
MADV_NOHUGEPAGE is to also mark it MADV_HUGEPAGE.
The overall strategy of trying to keep hugepages for the heap unbroken
however is sound. So instead let's use the new shiny MADV_COLLAPSE if it
exists.
MADV_COLLAPSE makes a best-effort synchronous attempt at collapsing the
physical memory backing a memory region into a hugepage. We'll use
MADV_COLLAPSE where we would've used MADV_HUGEPAGE, and stop using
MADV_NOHUGEPAGE altogether.
Because MADV_COLLAPSE is synchronous, it's also important to not
re-collapse huge pages if the huge pages are likely part of some large
allocation. Although in many cases it's advantageous to back these
allocations with hugepages because they're contiguous, eagerly
collapsing every hugepage means having to page in at least part of the
large allocation.
However, because we won't use MADV_NOHUGEPAGE anymore, we'll no longer
handle the fact that khugepaged might come in and back some memory we
returned to the OS with a hugepage. I've come to the conclusion that
this is basically unavoidable without a new madvise flag and that it's
just not a good default. If this change lands, advice about Linux huge
page settings will be added to the GC guide.
Verified that this change doesn't regress Sweet, at least not on my
machine with:
/sys/kernel/mm/transparent_hugepage/enabled [always or madvise]
/sys/kernel/mm/transparent_hugepage/defrag [madvise]
/sys/kernel/mm/transparent_hugepage/khugepaged/max_ptes_none [0 or 511]
Unfortunately, this workaround means that we only get forced hugepages
on Linux 6.1+.
For #61718.
Fixes #62329.
Change-Id: I7f4a7ba397847de29f800a99f9cb66cb2720a533
Reviewed-on: https://go-review.googlesource.com/c/go/+/516795
Reviewed-by: Austin Clements <austin@google.com>
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(cherry picked from commit 9f9bb26880388c5bead158e9eca3be4b3a9bd2af)
Reviewed-on: https://go-review.googlesource.com/c/go/+/523655
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inference involving channels
In inexact unification, when a named type matches against an inferred
unnamed type, we change the previously inferred type to the named type.
This preserves the type name and assignability.
We have to do the same thing when encountering a directional channel:
a bidirectional channel can always be assigned to a directional channel
but not the other way around. Thus, if we see a directional channel, we
must choose the directional channel.
This CL extends the previously existing logic for named types to
directional channels and also makes the code conditional on inexact
unification. The latter is an optimization - if unification is exact,
type differences don't exist and updating an already inferred type has
no effect.
Fixes #62205.
Change-Id: I807e3b9f9ab363f9ed848bdb18b2577b1d680ea7
Reviewed-on: https://go-review.googlesource.com/c/go/+/524256
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Reviewed-by: Robert Findley <rfindley@google.com>
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An ETXTBSY error when starting a test binary is almost certainly
caused by the race reported in #22315. That race will resolve quickly
on its own, so we should just retry the command instead of reporting a
spurious failure.
Fixes #62222.
Updates #62221.
Change-Id: I408f3eaa7ab5d7efbc7a2b1c8bea3dbc459fc794
Reviewed-on: https://go-review.googlesource.com/c/go/+/522015
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Reviewed-by: Ian Lance Taylor <iant@google.com>
(cherry picked from commit 4dc2564933146efc411efad16b662589306744d1)
Reviewed-on: https://go-review.googlesource.com/c/go/+/522176
Auto-Submit: Dmitri Shuralyov <dmitshur@google.com>
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post-handshake messages
The check for fragmentary post-handshake messages in QUICConn.HandleData
was reversed, resulting in a potential panic when HandleData receives
a partial message.
In addition, HandleData wasn't checking the size of buffered
post-handshake messages. Produce an error when a post-handshake
message is larger than maxHandshake.
TestQUICConnectionState was using an onHandleCryptoData hook
in runTestQUICConnection that was never being called.
(I think it was inadvertently removed at some point while
the CL was in review.) Fix this test while making the hook
more general.
For #62266
Fixes #62290
Change-Id: I210b70634e50beb456ab3977eb11272b8724c241
Reviewed-on: https://go-review.googlesource.com/c/go/+/522595
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Reviewed-by: Roland Shoemaker <roland@golang.org>
(cherry picked from commit e92c0f846c54d88f479b1c48f0dbc001d2ff53e9)
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installed to GOROOT/bin/GOOS_GOARCH
When running make.bash in a cross-compiled configuration
(for example, GOARCH different from GOHOSTARCH), cmd/go
is installed to GOROOT/bin/GOOS_GOARCH instead of GOROOT/bin.
That means that we need to look for GOROOT in both ../.. and ../../..,
not just the former.
Fixes #62144.
Updates #62119.
Updates #18678.
Change-Id: I283c6a10c46df573ff44da826f870417359226a7
Reviewed-on: https://go-review.googlesource.com/c/go/+/521015
Reviewed-by: Michael Matloob <matloob@golang.org>
Auto-Submit: Bryan Mills <bcmills@google.com>
Run-TryBot: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
(cherry picked from commit 9e9556d328c53ed0a4d8b36feee949885d648ba8)
Reviewed-on: https://go-review.googlesource.com/c/go/+/521695
Auto-Submit: Dmitri Shuralyov <dmitshur@google.com>
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new name declaration
The unmarshal and marshal XML text should be consistent if not modified deserialize variable.
For #61881
Fixes #62051
Change-Id: I475f7b05211b618685597d3ff20b97e3bbeaf8f8
GitHub-Last-Rev: 6831c770c384831798cb1c6dc4674e5d4caa5e3c
GitHub-Pull-Request: golang/go#58401
Reviewed-on: https://go-review.googlesource.com/c/go/+/522316
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Commit-Queue: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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in Decoder.typeString
I believe this bug is introduced by CL 460543 which optimizes the allocations
by changing the type of `idToType` from map to slice, but didn't update the
access code in `Decoder.typeString` that is safe for map but not for slice.
For #62117
Fixes #62154
Change-Id: I0f2e4cc2f34c54dada1f83458ba512a6fde6dcbe
Reviewed-on: https://go-review.googlesource.com/c/go/+/520757
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Run-TryBot: Andy Pan <panjf2000@gmail.com>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
(cherry picked from commit ba626ac327f45a6d9d211fddd5b48e321fa0702a)
Reviewed-on: https://go-review.googlesource.com/c/go/+/521156
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
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Fixes #62204
Change-Id: I0459d3f481b0cd20102f6d9fd3ea84335a7739a8
Reviewed-on: https://go-review.googlesource.com/c/go/+/522317
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
(cherry picked from commit b303fb48558612e5c2a1f10acbc0b1accdb8f260)
Reviewed-on: https://go-review.googlesource.com/c/go/+/522936
Reviewed-by: Carlos Amedee <carlos@golang.org>
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Condition variables are subtle and error-prone, and this example
demonstrates exactly the sorts of problems that they introduce.
Unfortunately, we're stuck with them for the foreseeable future.
As previously implemented, this example was racy: since the callback
passed to context.AfterFunc did not lock the mutex before calling
Broadcast, it was possible for the Broadcast to occur before the
goroutine was parked in the call to Wait, causing in a missed wakeup
resulting in deadlock.
The example also had a more insidious problem: it was not safe for
multiple goroutines to call waitOnCond concurrently, but the whole
point of using a sync.Cond is generally to synchronize concurrent
goroutines. waitOnCond must use Broadcast to ensure that it wakes up
the target goroutine, but the use of Broadcast in this way would
produce spurious wakeups for all of the other goroutines waiting on
the same condition variable. Since waitOnCond did not recheck the
condition in a loop, those spurious wakeups would cause waitOnCond
to spuriously return even if its own ctx was not yet done.
Fixing the aforementioned bugs exposes a final problem, inherent to
the use of condition variables in this way. This one is a performance
problem: for N concurrent calls to waitOnCond, the resulting CPU cost
is at least O(N²). This problem cannot be addressed without either
reintroducing one of the above bugs or abandoning sync.Cond in the
example entirely. Given that this example was already published in Go
1.21, I worry that Go users may think that it is appropriate to use a
sync.Cond in conjunction with context.AfterFunc, so I have chosen to
retain the Cond-based example and document its pitfalls instead of
removing or replacing it entirely.
I described this class of bugs and performance issues — and suggested
some channel-based alternatives — in my GopherCon 2018 talk,
“Rethinking Classical Concurrency Patterns”. The section on condition
variables starts on slide 37. (https://youtu.be/5zXAHh5tJqQ?t=679)
Fixes #62189.
Updates #62180.
For #20491.
Change-Id: If987cd9d112997c56171a7ef4fccadb360bb79bc
Reviewed-on: https://go-review.googlesource.com/c/go/+/521596
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Auto-Submit: Bryan Mills <bcmills@google.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Bryan Mills <bcmills@google.com>
(cherry picked from commit 1081f8c05807728738e1e6bf9097a41796fe5a05)
Reviewed-on: https://go-review.googlesource.com/c/go/+/521598
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versions before Go 1.21
Change the internal constant enableInterfaceInference to a unifier
field that can be controlled dynamically and set it for Go 1.21
or later.
This restores Go 1.20 unification behavior for interfaces.
Fixes #61930.
Change-Id: Iefd6c0899811f8208a8be9cef2650a07787ae177
Reviewed-on: https://go-review.googlesource.com/c/go/+/519855
Reviewed-by: Robert Findley <rfindley@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Robert Griesemer <gri@google.com>
Reviewed-on: https://go-review.googlesource.com/c/go/+/520601
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marshalling into call block
For aggregate-typed arguments passed to a call, expandCalls
decomposed them into parts in the same block where the value
was created. This is not necessarily the call block, and in
the case where stores are involved, can change the memory
leaving that block, and getting that right is problematic.
Instead, do all the expanding in the same block as the call,
which avoids the problems of (1) not being able to reorder
loads/stores across a block boundary to conform to memory
order and (2) (incorrectly, not) exposing the new memory to
consumers in other blocks. Putting it all in the same block
as the call allows reordering, and the call creates its own
new memory (which is already dealt with correctly).
Fixes #62057.
Updates #61992.
Change-Id: Icc7918f0d2dd3c480cc7f496cdcd78edeca7f297
Reviewed-on: https://go-review.googlesource.com/c/go/+/519276
Reviewed-by: Keith Randall <khr@google.com>
Run-TryBot: David Chase <drchase@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
(cherry picked from commit e72ecc6a6becab9ca895c0108047db4723394296)
Reviewed-on: https://go-review.googlesource.com/c/go/+/520058
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directories on windows"
This reverts CL 452995.
Reason for revert: caused os.File.ReadDir to fail on
filesystems that do not support FILE_ID_BOTH_DIR_INFO.
This is an alternative to a fix-forward change in CL 518196.
Since the original change was mostly a performance improvement,
reverting to the previous implementation seems less risky than
backporting a larger fix.
Fixes #61910
Fixes #61964
Change-Id: I60f1602b9eb6ea353e7eb23429f19f1ffa16b394
Reviewed-on: https://go-review.googlesource.com/c/go/+/520156
Run-TryBot: Bryan Mills <bcmills@google.com>
Reviewed-by: Austin Clements <austin@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Quim Muntal <quimmuntal@gmail.com>
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extension on arm64"
This reverts CL 427454.
Reason for revert: causes incorrect generated code in some rare cases
We'll fix-forward at tip, so the revert just needs to be done for 1.21.
Fixes #62143
Change-Id: Id242230481ff4d4ba5f58236c6d8237729fc3b80
Reviewed-on: https://go-review.googlesource.com/c/go/+/520976
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Ruinan Sun <Ruinan.Sun@arm.com>
Reviewed-by: Keith Randall <khr@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
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invalid Windows paths
Fix a bug where Clean could improperly drop .. elements from a
path on Windows, when the path contains elements containing a ':'.
For example, Clean("a/../b:/../../c") now correctly returns "..\c"
rather than "c".
For #61866.
Fixes #61868.
Change-Id: I97b0238953c183b2ce19ca89c14f26700008ea72
Reviewed-on: https://go-review.googlesource.com/c/go/+/517216
Run-TryBot: Damien Neil <dneil@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Quim Muntal <quimmuntal@gmail.com>
(cherry picked from commit 6e43407931ee4acc204620a9fae59c7903164901)
Reviewed-on: https://go-review.googlesource.com/c/go/+/519655
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
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String symbol names could contain weird characters as we put the
string literal into the symbol name. So it may appear to need
mangling. However, as string symbols are grouped into a single
"go:string.*" symbol, the individual symbol names actually don't
matter. So don't mangle them.
Also make the mangling code more defensive in case of weird
symbol names.
Updates #62098.
Fixes #62140.
Change-Id: I533012567a9fffab69debda934f426421c7abb04
Reviewed-on: https://go-review.googlesource.com/c/go/+/520856
Reviewed-by: Than McIntosh <thanm@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
(cherry picked from commit b65e34f03814889f0edd3ddd9778864762511443)
Reviewed-on: https://go-review.googlesource.com/c/go/+/520857
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The wasip1 TCP echo test introduced in CL 493358 has a race
condition with port selection. The test runner probes for a free
port and then asks the WASM runtime to listen on the port, which
may be taken by another process in the interim.
Due to limitations with WASI preview 1, the guest is unable to
query the port it's listening on. The test cannot ask the WASM
runtime to listen on port 0 (choose a free port) since there's
currently no way for the test to query the selected port and
connect to it.
Given the race condition is unavoidable, this test is now disabled
by default and requires opt-in via an environment variable.
This commit also eliminates the hard-coded connection timeout.
Updates #61820.
Fixes #61821.
Change-Id: I375145c1a1d03ad45c44f528da3347397e6dcb01
Reviewed-on: https://go-review.googlesource.com/c/go/+/519895
Run-TryBot: Johan Brandhorst-Satzkorn <johan.brandhorst@gmail.com>
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Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
(cherry picked from commit 795e779610cd1ef8ad4c137c067a23ace1190115)
Reviewed-on: https://go-review.googlesource.com/c/go/+/520955
Run-TryBot: Bryan Mills <bcmills@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@google.com>
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no:split
This fixes a regression from CL 494181.
The traceEnabled function splits the stack and is being
called by reentersyscall that shouldn't call anything
that splits the stack. Same with traceShuttingDown.
For #61975
Fixes #61987
Change-Id: I5eca0ba74cfa6acb0259e8400b03c2093cd59dd1
GitHub-Last-Rev: 9e55ae9d7cc700de9757d32a7905127a349d973a
GitHub-Pull-Request: golang/go#61981
Reviewed-on: https://go-review.googlesource.com/c/go/+/519055
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Dmitri Shuralyov <dmitshur@google.com>
(cherry picked from commit aa5d483f25e89f3bf399362ccc9a5b146cae5c79)
Reviewed-on: https://go-review.googlesource.com/c/go/+/519495
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Auto-Submit: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Austin Clements <austin@google.com>
Run-TryBot: Michael Knyszek <mknyszek@google.com>
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are marked unpreemptible
Fixes #61958
Change-Id: I242ab77ad2f1ea1dad2d14ef756fa92f9378429f
Reviewed-on: https://go-review.googlesource.com/c/go/+/518755
Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: David Chase <drchase@google.com>
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On Darwin (and assume also on iOS but not sure), notetsleepg
cannot be called in a signal-handling context. Avoid this
by disabling block reads on Darwin.
An alternate approach was to add "sigNote" with a pipe-based
implementation on Darwin, but that ultimately would have required
at least one more linkname between runtime and syscall to avoid
racing with fork and opening the pipe, so, not.
Fixes #62019.
Updates #61768.
Change-Id: I0e8dd4abf9a606a3ff73fc37c3bd75f55924e07e
Reviewed-on: https://go-review.googlesource.com/c/go/+/518836
Run-TryBot: David Chase <drchase@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
(cherry picked from commit c6ee8e31e3e7b01da54d241ae5a8eed350ab0e9f)
Reviewed-on: https://go-review.googlesource.com/c/go/+/519375
Reviewed-by: Austin Clements <austin@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@google.com>
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typecheck-ed nodes
Fixes #61909
Change-Id: Ief8e3a6c42c0644c9f71ebef5f28a294cd7c153f
Reviewed-on: https://go-review.googlesource.com/c/go/+/517936
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-on: https://go-review.googlesource.com/c/go/+/518115
Auto-Submit: Dmitri Shuralyov <dmitshur@google.com>
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completion
It should be possible for the importer to construct an invalid
interface, as would have been produced by type checking.
Updates #61737
Fixes #61743
Change-Id: I72e063f4f1a6205d273a623acce2ec08c34c3cc2
Reviewed-on: https://go-review.googlesource.com/c/go/+/515555
Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Findley <rfindley@google.com>
Reviewed-by: Olif Oftimis <oftimisolif@gmail.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
(cherry picked from commit d2ee7821d357a4e4948b9a6251e82b4ced9a1eae)
Reviewed-on: https://go-review.googlesource.com/c/go/+/515636
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
Auto-Submit: Dmitri Shuralyov <dmitshur@google.com>
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checking argument passing
The existing code was simply wrong: we cannot ever use the result
signature parameter list (rsig.params) if sigParams was adjusted
for variadic functions. If it was adjusted, we always must either
use sigParams or its separately instantiated version.
In the condition "n > 0 && adjusted", the "n > 0" should have
been in either of the respective "if statement" branches.
Simplified the code by merging with the result signature parameter
update.
Fixes #61932.
Change-Id: I5d39bc8bbc4dd85c7c985055d29532b4b176955e
Reviewed-on: https://go-review.googlesource.com/c/go/+/519456
Auto-Submit: Robert Griesemer <gri@google.com>
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Reviewed-on: https://go-review.googlesource.com/c/go/+/519417
Auto-Submit: Dmitri Shuralyov <dmitshur@google.com>
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comparing interface methods
Irrespective of whether unification is exact or inexact, method
signatures of interfaces must always match exactly: a type never
satisfies/implements an interface if relevant method signatures
are different (i.e., not identical, possibly after substitution).
Fixes #61959.
Change-Id: I20c0aa28ac86e2edec615b40f2269938e4a96938
Reviewed-on: https://go-review.googlesource.com/c/go/+/519435
TryBot-Result: Gopher Robot <gobot@golang.org>
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Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-on: https://go-review.googlesource.com/c/go/+/519416
Auto-Submit: Dmitri Shuralyov <dmitshur@google.com>
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This makes cmd/api no longer an importable package.
In CL 453258 I forgot that there was no direct prohibition
on importing packages from cmd - we just rely on the
fact that cmd/* is all package main and everything else
is cmd/internal.
Fixes #62069.
Fixes #62071.
Change-Id: Ifed738d333b40663f85eca8f83025fcea5df89a9
Reviewed-on: https://go-review.googlesource.com/c/go/+/520038
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Russ Cox <rsc@golang.org>
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Reviewed-on: https://go-review.googlesource.com/c/go/+/520061
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Add a new GODEBUG setting, tlsmaxrsasize, which allows controlling the
maximum RSA key size we will accept during TLS handshakes.
Fixes #61967
Change-Id: I52f060be132014d219f4cd438f59990011a35c96
Reviewed-on: https://go-review.googlesource.com/c/go/+/517495
Auto-Submit: Roland Shoemaker <roland@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
Run-TryBot: Roland Shoemaker <roland@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-on: https://go-review.googlesource.com/c/go/+/518535
Auto-Submit: Dmitri Shuralyov <dmitshur@google.com>
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When we were comparing the first element of import stacks when sorting
depserrors we checked if the first stack was non empty, but not the
second one. Do the check for both stacks.
Fixes #61818
Updates #61816
For #59905
Change-Id: Id5c11c2b1104eec93196a08c53372ee2ba97c701
Reviewed-on: https://go-review.googlesource.com/c/go/+/516739
Reviewed-by: Bryan Mills <bcmills@google.com>
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Run-TryBot: Michael Matloob <matloob@golang.org>
(cherry picked from commit 58447d757c233f2a9c3c5a73e2d96a6885f2759a)
Reviewed-on: https://go-review.googlesource.com/c/go/+/519658
Reviewed-by: Michael Matloob <matloob@golang.org>
Run-TryBot: Bryan Mills <bcmills@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@google.com>
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Historically, the Transport has silently truncated invalid
Host headers at the first '/' or ' ' character. CL 506996 changed
this behavior to reject invalid Host headers entirely.
Unfortunately, Docker appears to rely on the previous behavior.
When sending a HTTP/1 request with an invalid Host, send an empty
Host header. This is safer than truncation: If you care about the
Host, then you should get the one you set; if you don't care,
then an empty Host should be fine.
Continue to fully validate Host headers sent to a proxy,
since proxies generally can't productively forward requests
without a Host.
For #60374
Fixes #61431
Fixes #61904
Change-Id: If170c7dd860aa20eb58fe32990fc93af832742b6
Reviewed-on: https://go-review.googlesource.com/c/go/+/511155
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Run-TryBot: Damien Neil <dneil@google.com>
(cherry picked from commit b9153f6ef338baee5fe02a867c8fbc83a8b29dd1)
Reviewed-on: https://go-review.googlesource.com/c/go/+/518856
Auto-Submit: Dmitri Shuralyov <dmitshur@google.com>
Run-TryBot: Roland Shoemaker <roland@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
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Various tools expect tar files to contain entries for directories.
I dropped them when writing cmd/distpack because they're not
strictly necessary and omitting them saves space, but it also
turns out to break some things, so add them back.
We will backport this to release-branch.go1.21 so that Go 1.21.1
will include the directory entries. We can't do anything about
Go 1.21.0 retroactively.
% tar tzvf go1.22rsc1.src.tar.gz | sed 10q
drwxr-xr-x 0 0 0 0 Aug 10 10:07 go/
-rw-r--r-- 0 0 0 1337 Aug 10 10:07 go/CONTRIBUTING.md
-rw-r--r-- 0 0 0 1479 Aug 10 10:07 go/LICENSE
-rw-r--r-- 0 0 0 1303 Aug 10 10:07 go/PATENTS
-rw-r--r-- 0 0 0 1455 Aug 10 10:07 go/README.md
-rw-r--r-- 0 0 0 419 Aug 10 10:07 go/SECURITY.md
-rw-r--r-- 0 0 0 42 Aug 10 10:07 go/VERSION
drwxr-xr-x 0 0 0 0 Aug 10 10:07 go/api/
-rw-r--r-- 0 0 0 1142 Aug 10 10:07 go/api/README
-rw-r--r-- 0 0 0 35424 Aug 10 10:07 go/api/except.txt
% tar tzvf go1.22rsc1.darwin-amd64.tar.gz | sed 10q
drwxr-xr-x 0 0 0 0 Aug 10 10:07 go/
-rw-r--r-- 0 0 0 1337 Aug 10 10:07 go/CONTRIBUTING.md
-rw-r--r-- 0 0 0 1479 Aug 10 10:07 go/LICENSE
-rw-r--r-- 0 0 0 1303 Aug 10 10:07 go/PATENTS
-rw-r--r-- 0 0 0 1455 Aug 10 10:07 go/README.md
-rw-r--r-- 0 0 0 419 Aug 10 10:07 go/SECURITY.md
-rw-r--r-- 0 0 0 42 Aug 10 10:07 go/VERSION
drwxr-xr-x 0 0 0 0 Aug 10 10:07 go/api/
-rw-r--r-- 0 0 0 1142 Aug 10 10:07 go/api/README
-rw-r--r-- 0 0 0 35424 Aug 10 10:07 go/api/except.txt
%
Fixes #61862.
Fixes #61927.
Change-Id: Iecd9ba893015295e88715b031b79a104236b9ced
Reviewed-on: https://go-review.googlesource.com/c/go/+/518335
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Reviewed-by: Heschi Kreinick <heschi@google.com>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-on: https://go-review.googlesource.com/c/go/+/518835
Auto-Submit: Russ Cox <rsc@golang.org>
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HTTP request fails due to CheckRedirect
Updates #61877.
Fixes #61905.
Change-Id: I38c63565aaf9dc9b0c8085974521daccfbcbc790
Reviewed-on: https://go-review.googlesource.com/c/go/+/518015
Reviewed-by: Michael Matloob <matloob@golang.org>
Run-TryBot: Bryan Mills <bcmills@google.com>
Auto-Submit: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
(cherry picked from commit 8cb5c55118a8273e1cc605b8ba167297808c4eda)
Reviewed-on: https://go-review.googlesource.com/c/go/+/518395
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len(string([]byte)) optimization
CL 497276 added optimization for len(string([]byte)) by avoiding call to
slicebytetostring. However, the bytes to string expression may contain
init nodes, which need to be preserved. Otherwise, it would make the
liveness analysis confusing about the lifetime of temporary variables
created by init nodes.
Fixes #61781
Change-Id: I6d1280a7d61bcc75f11132af41bda086f084ab54
Reviewed-on: https://go-review.googlesource.com/c/go/+/516375
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reviewed-on: https://go-review.googlesource.com/c/go/+/516535
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Change-Id: Iffac2ce43cd3a48ba420594adc3eab5aa9bcf113
Reviewed-on: https://go-review.googlesource.com/c/go/+/517055
Auto-Submit: Gopher Robot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Run-TryBot: Gopher Robot <gobot@golang.org>
Run-TryBot: Michael Knyszek <mknyszek@google.com>
Auto-Submit: Michael Knyszek <mknyszek@google.com>
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