Sorting variables by size doesn't actually do anything, but sorting by
alignment makes sure we can optimally pack variables into the stack
frame.
While here, replace the monolithic description at the top of
cmpstackvarlt with line-by-line explanations of what each comparison
is doing.
Change-Id: I860677799618130ce4a55f084cec637cb9a2e295
Reviewed-on: https://go-review.googlesource.com/c/go/+/516197
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These aren't used and don't do anything useful anyway.
Change-Id: I2865f6bbb0409fa59b1fde32abb7c5f81a6bdb7c
Reviewed-on: https://go-review.googlesource.com/c/go/+/516195
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Change-Id: I5445f3393373423592dfdd88b91d267c2c98d113
GitHub-Last-Rev: f554da58f4
GitHub-Pull-Request: golang/go#61749
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sysctl kern.arandom has been supported since NetBSD 4.0, works inside a
chroot, has no confusing bells and whistles like Linux getrandom,
requires no complicated querying to avoid SIGSYS traps, and is what
NetBSD 10 will usee for the getentropy(3) library routine soon to
appear in POSIX.
Change-Id: I23bd84ecd5ff3e33e8958c60896db842c44667ba
GitHub-Last-Rev: 5db094c85a
GitHub-Pull-Request: golang/go#61441
Reviewed-on: https://go-review.googlesource.com/c/go/+/511036
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Converts the 5 x 8-bit source byte to two 32-bit integers.
This will reduce the number of shift operations.
benchmark old ns/op new ns/op delta
BenchmarkEncode-10 9005 4426 -50.85%
BenchmarkEncodeToString-10 10739 6155 -42.69%
benchmark old MB/s new MB/s speedup
BenchmarkEncode-10 909.69 1850.81 2.03x
BenchmarkEncodeToString-10 762.84 1331.02 1.74x
Change-Id: I9418d3436b73f94a4eb4b2b525e4f83612ff4d47
Reviewed-on: https://go-review.googlesource.com/c/go/+/514095
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For #60088
Change-Id: Id19435e864bcfd2adbb1492db3f8cdf2ee3c915e
Reviewed-on: https://go-review.googlesource.com/c/go/+/515175
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An optional interface FileInfoNames has been added.
If the parameter fi of FileInfoHeader implements the interface
the Gname and Uname of the return value Header are
provided by the method of the interface.
Also added testing.
Fixes#50102
Change-Id: I6fd06c7c9aaf29b22b7384542fe57affed33009a
Change-Id: I6fd06c7c9aaf29b22b7384542fe57affed33009a
GitHub-Last-Rev: 5e82257948
GitHub-Pull-Request: golang/go#61662
Reviewed-on: https://go-review.googlesource.com/c/go/+/514235
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Change-Id: I9bafc7aa4e20e7cd994b75e7576156ca68f4fc8b
GitHub-Last-Rev: e037f689bd
GitHub-Pull-Request: golang/go#61746
Reviewed-on: https://go-review.googlesource.com/c/go/+/515855
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If err is non-nil, use t.Fatalf to avoid panic when calling p.Wait().
Change-Id: Ief4e43ba5ad782999063941ed3b12f3fe4d93621
GitHub-Last-Rev: 5d32b3c082
GitHub-Pull-Request: golang/go#61740
Reviewed-on: https://go-review.googlesource.com/c/go/+/515655
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For #40329
Change-Id: Ie0cb337545ce39cd169129227c45f7d2eaebc898
GitHub-Last-Rev: c017d4c7c1
GitHub-Pull-Request: golang/go#56507
Reviewed-on: https://go-review.googlesource.com/c/go/+/446836
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Change-Id: If8fc77d5b04b2979707032d91112d4f33ef5e3da
GitHub-Last-Rev: d82d769c04
GitHub-Pull-Request: golang/go#55913
Reviewed-on: https://go-review.googlesource.com/c/go/+/435536
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Reviewed-by: Michael Knyszek <mknyszek@google.com>
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Change-Id: I476e2a75f39c876fa9c071cada36573740d546de
GitHub-Last-Rev: dec3fb438f
GitHub-Pull-Request: golang/go#61783
Reviewed-on: https://go-review.googlesource.com/c/go/+/516395
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Change-Id: Ib3e8953dbdefa2b78c31b1bcbf0909bce248e423
Reviewed-on: https://go-review.googlesource.com/c/go/+/500475
Reviewed-by: Robert Griesemer <gri@google.com>
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Rather than testing for architectures that use libc-based system calls,
test that it is not the single architecture that Go is still using direct
system calls. This reduces the number of changes needed for new openbsd
ports.
Updates #36435
Updates #61546
Change-Id: I79c4597c629b8b372e9efcda79e8f6ff778b9e8e
Reviewed-on: https://go-review.googlesource.com/c/go/+/516016
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Change-Id: I7d960ebeac38262c8ee39deeed9e1a2ea2803f5f
GitHub-Last-Rev: 59c5d7ea76
GitHub-Pull-Request: golang/go#61755
Reviewed-on: https://go-review.googlesource.com/c/go/+/515800
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The type machVMRegionBasicInfoData is generated from C type
vm_region_basic_info_data_64_t, which is a packed struct with a
64-bit field at offset 20. We cannot use uint64 as the field type
in the Go struct, as that will be aligned at offset 24, which does
not match the C struct. Change back to [8]byte (which is what the
cgo command generates), but keep the name Offset.
Updates #61707.
Updates #50891.
Change-Id: I2932328d7f9dfe9d79cff89752666c794d4d3788
Reviewed-on: https://go-review.googlesource.com/c/go/+/516156
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Now that the development of the Go 1.21 release is almost done, its
release notes are moved to their eventual long-term home in x/website
in CL 516095. Delete the initial development copy here.
For golang/go#58645.
Change-Id: I5207d21289b2e7b9328c943a088f45bc81c710a4
Reviewed-on: https://go-review.googlesource.com/c/go/+/516075
Run-TryBot: David Chase <drchase@google.com>
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Left out the following commits that felt more bug-fixy.
* f0de4b4f03 - crypto/x509: fix certificate validation with FQDN on Windows <Patryk Chelmecki>
* 20e08fe68c - crypto/tls: advertise correct ciphers in TLS 1.3 only mode <Monis Khan>
* 295c237b4d - crypto/tls: enforce 1.3 record version semantics <Roland Shoemaker>
Change-Id: Idd38b5c6897130424a0e8b857f371d7d384fc143
Reviewed-on: https://go-review.googlesource.com/c/go/+/515955
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Stop using BTSconst and friends when ORLconst can be used instead.
OR can be issued by more function units than BTS can, so it could
lead to better IPC. OR might take a few more bytes to encode, but
not a lot more.
Still use BTSconst for cases where the constant otherwise wouldn't
fit and would require a separate movabs instruction to materialize
the constant. This happens when setting bits 31-63 of 64-bit targets.
Add BTS-to-memory operations so we don't need to load/bts/store.
Fixes#61694
Change-Id: I00379608df8fb0167cb01466e97d11dec7c1596c
Reviewed-on: https://go-review.googlesource.com/c/go/+/515755
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A consequence of go.dev/cl/513837 was that calling deferreturn would
now use the unwinder to find (just) the current frame, and it turns
out there are workloads where this has a significant performance
impact.
As a simple optimization, this CL adds a fast path for deferreturn to
detect when there are pending linked defers, which allows us to skip
invoking the unwinder entirely.
Notably, this still doesn't handle the corner case of calling
deferreturn in a function that uses linked defer when dynamically
there just aren't any defers pending. It also means that after
recovering from a panic and returning to a frame that used open-coded,
we still need to use the unwinder too.
I hope to further optimize defer handling to improve these cases too,
but this is an easy, short-term optimization that relieves the
performance impact to the affected workloads.
Change-Id: I11fa73649302199eadccc27b403b231db8f33db2
Reviewed-on: https://go-review.googlesource.com/c/go/+/515716
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The recent version of darwin linker ld64 emits an warning about
deprecation of the -no_pie flag. Further, the new darwin linker
ld-prime ignores -no_pie flag and generates a PIE binary anyway.
Switch to building PIE binaries by default.
Updates #54482.
Updates #61229.
Change-Id: I81294dcd07a368a20e1349d56556ee2fdcb8df44
Reviewed-on: https://go-review.googlesource.com/c/go/+/461697
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Change-Id: If9c41bd1e0497e76d901bfd2f749fbeb1ed3ac38
GitHub-Last-Rev: f5777d8c20
GitHub-Pull-Request: golang/go#61734
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Fixes#61648
Change-Id: I6b7f4948ca89142a358d74624607daf42ea8b304
Reviewed-on: https://go-review.googlesource.com/c/go/+/514135
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The encoding/gob.TestLargeSlice test needs too much virtual memory
to run reliably on machines with a small address space, for example
the plan9-arm builders where user processes only have 1 gigabyte.
Fixes#60284
Change-Id: Ied88630e5ec6685e14d2060ae316abca1619f9b5
Reviewed-on: https://go-review.googlesource.com/c/go/+/496138
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Change-Id: I06345199ff16c80be83c345d734caef1714ec089
Reviewed-on: https://go-review.googlesource.com/c/go/+/515338
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The go/types changes are matching but the API changes are hidden
for now, pending acceptance of a respective proposal.
Change-Id: I2e38ff215ddbdcf93f182d3e70c03802d3ca4338
Reviewed-on: https://go-review.googlesource.com/c/go/+/515135
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It should be possible for the importer to construct an invalid
interface, as would have been produced by type checking.
Fixes#61737
Change-Id: I72e063f4f1a6205d273a623acce2ec08c34c3cc2
Reviewed-on: https://go-review.googlesource.com/c/go/+/515555
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Rather than having register encoding knowledge in each caller of opxrrr,
pass the registers into opxrrr and let it handle the encoding. This reduces
duplication and improves readability.
Change-Id: I202c503465a0169277a0f64340598203c9dcf20c
Reviewed-on: https://go-review.googlesource.com/c/go/+/461140
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The existing Thread Local Storage (TLS) implementation for riscv64 uses
initial-exec (IE) mode, however a MOV of a TLS symbol currently loads the
thread pointer offset and not the actual address or memory location.
Rework TLS on riscv64 to generate the full instruction sequence needed to
load from or store to a TLS symbol. Additionally, provide support for both
initial-exec (IE) and local-exec (LE) TLS - in many cases we can use LE,
which is slightly more efficient and easier to support in the linker.
Change-Id: I1b43f8888b3b6b10354bbb79d604771e64d92645
Reviewed-on: https://go-review.googlesource.com/c/go/+/431103
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Displaying assembly language has never worked for Apple Silicon
macs (see #50891). This change uses mach_vm_region to obtain the
necessary VM mappings to allow for locating assembly instructions
for a cpu profile.
Fixes#50891
Change-Id: Ib968c55a19b481b82f63337276b552f3b18f69d1
Reviewed-on: https://go-review.googlesource.com/c/go/+/503919
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All TestPointerChecks cases can be executed on Windows with some minor
tweaks.
It seems that the skip has been cargo-culted from when cgo error tests
were first added in https://codereview.appspot.com/13498046.
Change-Id: I39cd05f4c90965b669d2b403f7fcd9dd9c69016c
Reviewed-on: https://go-review.googlesource.com/c/go/+/514296
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See CL 308769
Change-Id: I0caa0a84215b3d4b8b3dc6f041b6cd9cbe2c0908
GitHub-Last-Rev: e3aa5bde23
GitHub-Pull-Request: golang/go#61657
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CL 513235 switched the default wasip1 runtime in the misc/wasm
executable script, but it missed this use of the GOWASIRUNTIME
environment variable. Update this instance to make the default runtime
choice consistent.
Change-Id: Iff7f96231422747a38d65d13a940f6e9d04d835d
Reviewed-on: https://go-review.googlesource.com/c/go/+/515115
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For #60088
Change-Id: I56586b68d5e38a46560f4ced19214f1d2db2850e
Reviewed-on: https://go-review.googlesource.com/c/go/+/514995
Run-TryBot: Ian Lance Taylor <iant@golang.org>
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Change-Id: I23e0005071fcbafeaecaa05f51712dd1de6eed01
Change-Id: I23e0005071fcbafeaecaa05f51712dd1de6eed01
GitHub-Last-Rev: 364d7c74fe
GitHub-Pull-Request: golang/go#61661
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Replaced t.Fatalf with t.Errorf for non-critical errors to footprint more failing test cases for better analysis of the error.
Change-Id: I6f51d21e37a4ddb95d239d8afed2154f3ef52d31
GitHub-Last-Rev: d56aa49bce
GitHub-Pull-Request: golang/go#60524
Reviewed-on: https://go-review.googlesource.com/c/go/+/499336
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For a while now we support EDNS, but the current
implementation only sends the OPT resource and doesn't
do anything with the response OPT resource.
For reference the miekg/dns updates the RCode in the
header when there is a OPT resource:
48f38ebef9/msg.go (L868-L872)
Change-Id: I0a7146aed3e50654f340a3925f48612561cb85f4
GitHub-Last-Rev: adc304167e
GitHub-Pull-Request: golang/go#61695
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Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Add support for WSBH/DSBH/DSHD instructions, which are introduced in mips{32,64}r2.
WSBH reverse bytes within halfwords for 32-bit word, DSBH reverse bytes within halfwords for 64-bit doubleword, and DSHD reverse halfwords within doublewords. These instructions can be used to optimize byte swaps.
Ref: The MIPS64 Instruction Set, Revision 5.04: https://s3-eu-west-1.amazonaws.com/downloads-mips/documents/MD00087-2B-MIPS64BIS-AFP-05.04.pdf
Updates #60072
Change-Id: I31c043150fe8ac03027f413ef4cb2f3e435775e1
Reviewed-on: https://go-review.googlesource.com/c/go/+/493816
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Joel Sing <joel@sing.id.au>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Joel Sing <joel@sing.id.au>
Add "NewInliner" to the list of Go experiments, used for enabling an
updated/improved version of the function inlining phase within the Go
compiler.
Updates #61502.
Change-Id: I3218b3ae59a2d05156e8017cd9ee1d7b66cad031
Reviewed-on: https://go-review.googlesource.com/c/go/+/511555
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
posVers exists once for an entire package. Move it into the group
of fields related to the entire package (and out from the group
of fields that are specific to each batch of files).
Change-Id: I40ea722578408bdf2b85db91b65680e720c0c502
Reviewed-on: https://go-review.googlesource.com/c/go/+/514998
Auto-Submit: Robert Griesemer <gri@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
To allow for future evolution of the API, make
QUICConn.SendSessionTicket take a QUICSessionTicketOptions
rather than a single bool.
For #60107
Change-Id: I798fd0feec5c7581e3c3574e2de99611c81df47f
Reviewed-on: https://go-review.googlesource.com/c/go/+/514997
Reviewed-by: Roland Shoemaker <roland@golang.org>
Run-TryBot: Damien Neil <dneil@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Marten Seemann <martenseemann@gmail.com>
The CPU profiler skip samples if the sampling rate is too high
for the system timer resolution. This CL uses high resolution
timers on Windows when available, to avoid this problem.
Note that the default sampling rate (100Hz) is already too high
for the Windows timer resolution (15.6ms), so this CL also improves
the default Windows sampling coverage.
Not adding regression tests, as they would be too flaky.
Fixes#61665
Change-Id: Ifdadabc9ebaf56f397eac517bd0e5f1502b956b3
Reviewed-on: https://go-review.googlesource.com/c/go/+/514375
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Quim Muntal <quimmuntal@gmail.com>
Reviewed-by: David Chase <drchase@google.com>
Fixes#61495
Change-Id: I9abaf3613c797006b803dcb1dbee16f25ffb7516
Change-Id: I9abaf3613c797006b803dcb1dbee16f25ffb7516
GitHub-Last-Rev: 7bc2cba772
GitHub-Pull-Request: golang/go#61645
Reviewed-on: https://go-review.googlesource.com/c/go/+/514035
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
