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56608 Commits

Author SHA1 Message Date
Austin Clements
65306bcdae cmd/dist: refactor adding to the test list into a method
Currently, there are four places that add distTests to the
tester.tests list. That means we're already missing a few name
uniqueness checks, and we're about to start enforcing some more
requirements on tests that would be nice to have in one place. Hence,
to prepare for this, this CL refactors the process of adding to the
tester.tests list into a method. That also means we can trivially use
a map to check name uniqueness rather than an n^2 slice search.

For #37486.

Change-Id: Ib7b64c7bbf65e5e870c4f4bfaca8c7f70983605c
Reviewed-on: https://go-review.googlesource.com/c/go/+/495015
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2023-05-16 01:41:49 +00:00
eric fang
e0ceba8139 cmd/compile: enhance tighten pass for memory values
[This is a roll-forward of CL 458755, which was reverted due to make.bash
being broken on GOAMD64=v3. But it turned out that the problem was caused
by wrong bswap/load rewrite rules, and it was fixed in CL 492616.]

This CL enhances the tighten pass. Previously if a value has memory arg,
then the tighten pass won't move it, actually if the memory state is
consistent among definition and use block, we can move the value. This
CL optimizes this case. This is useful for the following situation:
b1:
  x = load(...mem)
  if(...) goto b2 else b3
b2:
  use(x)
b3:
  some_op_not_use_x

For the micro-benchmark mentioned in #56620, the performance improvement
is about 15%.
There's no noticeable performance change in the go1 benchmark.

Fixes #56620

Change-Id: I36ea68bed384986cd3ae81cb9e6efe84bb213adc
Reviewed-on: https://go-review.googlesource.com/c/go/+/492895
Reviewed-by: Keith Randall <khr@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
Reviewed-by: Keith Randall <khr@google.com>
Run-TryBot: Eric Fang <eric.fang@arm.com>
2023-05-16 01:01:38 +00:00
Ian Lance Taylor
5f345e8eb9 os, syscall: permit setting mtime to Unix 0 on Windows
This edge case was accidentally broken by CL 219638.

Change-Id: I673b3b580fbe379a04f8650cf5969fe9bce83691
Reviewed-on: https://go-review.googlesource.com/c/go/+/495036
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
2023-05-16 00:17:27 +00:00
Austin Clements
7213f2e720 Revert "net/http: do not force the Content-Length header if nilled"
This reverts CL 469095.

The newly added TestDisableContentLength is failing on all longtest
builders.

Change-Id: Id307df61c7bf80691d9c276e8d200eebf6d4a59c
Reviewed-on: https://go-review.googlesource.com/c/go/+/495017
Auto-Submit: Austin Clements <austin@google.com>
Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2023-05-15 21:31:16 +00:00
Jonathan Amsterdam
ff3aefbad4 log/slog: document that NewRecord should be used to create a record
Change-Id: I5ce32a94660bdf12c577fd7f41a7627469f6467b
Reviewed-on: https://go-review.googlesource.com/c/go/+/494618
Run-TryBot: Jonathan Amsterdam <jba@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
2023-05-15 19:12:45 +00:00
Lynn Boger
4481042c43 cmd/compile: update rules to generate more prefixed instructions
This modifies some existing rules to allow more prefixed instructions
to be generated when using GOPPC64=power10. Some rules also check
if PCRel is available, which is currently supported for linux/ppc64le
and linux/ppc64 (internal linking only).

Prior to p10, DS-offset loads and stores had a 16 bit size limit for
the offset field. If the offset of the data for load or store was
beyond this range then an indexed load or store would be selected by
the rules.

In p10 the assembler can generate prefixed instructions in this case,
but does not if an indexed instruction was selected during the lowering
pass.

This allows many more cases to use prefixed loads or stores, reducing
function sizes and improving performance in some cases where the code
change happens in key loops.

For example in strconv BenchmarkAppendQuoteRune before:

  12c5e4:       15 00 10 06     pla     r10,1425660
  12c5e8:       fc c0 40 39
  12c5ec:       00 00 6a e8     ld      r3,0(r10)
  12c5f0:       10 00 aa e8     ld      r5,16(r10)

After this change:

  12a828:       15 00 10 04     pld     r3,1433272
  12a82c:       b8 de 60 e4
  12a830:       15 00 10 04     pld     r5,1433280
  12a834:       c0 de a0 e4

Performs better in the second case.

A testcase was added to verify that the rules correctly select a load or
store based on the offset and whether power10 or earlier.

Change-Id: I4335fed0bd9b8aba8a4f84d69b89f819cc464846
Reviewed-on: https://go-review.googlesource.com/c/go/+/477398
Reviewed-by: Heschi Kreinick <heschi@google.com>
Reviewed-by: Archana Ravindar <aravind5@in.ibm.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Lynn Boger <laboger@linux.vnet.ibm.com>
Reviewed-by: Paul Murphy <murp@ibm.com>
2023-05-15 18:20:54 +00:00
Damien Neil
268d2f7cf2 net/http: handle WriteHeader(101) as a non-informational header
Prior to Go 1.19 adding support for sending 1xx informational headers
with ResponseWriter.WriteHeader, WriteHeader(101) would send a 101
status and disable further writes to the response. This behavior
was not documented, but is intentional: Writing to the response
body explicitly checks to see if a 101 status has been sent before
writing.

Restore the pre-1.19 behavior when writing a 101 Switching Protocols
header: The header is sent, no subsequent headers are sent, and
subsequent writes to the response body fail.

For #59564

Change-Id: I72c116f88405b1ef5067b510f8c7cff0b36951ee
Reviewed-on: https://go-review.googlesource.com/c/go/+/485775
Reviewed-by: Bryan Mills <bcmills@google.com>
Auto-Submit: Damien Neil <dneil@google.com>
Run-TryBot: Damien Neil <dneil@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2023-05-15 17:35:28 +00:00
Laurent Senta
949d0f4f99 net/http: do not force the Content-Length header if nilled
According to the ResponseWriter documentation:

  To suppress automatic response headers (such as "Date"), set
  their value to nil.

In some cases, this documentation is incorrect: chunkWriter writes
a Content-Length header even if the value was set to nil. Meaning
there is no way to suppress this header.

This patch replaces the empty string comparison with a call to
`header.has` which takes into account nil values as expected.
This is similar to the way we handle the "Date" header.

Change-Id: Ie10d54ab0bb7d41270bc944ff867e035fe2bd0c5
GitHub-Last-Rev: e0616dd463
GitHub-Pull-Request: golang/go#58578
Reviewed-on: https://go-review.googlesource.com/c/go/+/469095
Reviewed-by: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Damien Neil <dneil@google.com>
Run-TryBot: Jorropo <jorropo.pgm@gmail.com>
Reviewed-by: Damien Neil <dneil@google.com>
2023-05-15 17:07:02 +00:00
jchen038
1b896bff30 cmd/go/internal/modload: replace import error message from goroot to std
When importing a package that does not exist, it would show goroot error
message and path. We would like to replace goroot with std instead.

Fixes #56965.

Change-Id: I86f8a7fab6555b68f792a3a4686de20d51eced8b
Reviewed-on: https://go-review.googlesource.com/c/go/+/453895
Run-TryBot: Bryan Mills <bcmills@google.com>
Auto-Submit: Bryan Mills <bcmills@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
2023-05-15 16:24:01 +00:00
Austin Clements
0e7a250422 misc: remove misc/arm/a script
This appears to be a very old wrapper around adb for testing on
Android before we had the go_android_exec wrapper.

Change-Id: I847bb15c98febbcffc063f00719a084e5c99a18b
Reviewed-on: https://go-review.googlesource.com/c/go/+/493604
Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
2023-05-15 15:42:24 +00:00
Austin Clements
e9f1bb96bd cmd/cgo: enable test with non-sensible build tag
The build tag on this file is currently unsatisfiable. It was clearly
supposed to be "linux || freebsd || openbsd", but the test doesn't
actually compile on FreeBSD or OpenBSD because they don't define
SYS_gettid. Change the build tag to just "linux".

Change-Id: Ifaffac5438e1b94a8588b5a00435461aa171a6fc
Reviewed-on: https://go-review.googlesource.com/c/go/+/493603
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2023-05-15 15:42:13 +00:00
qmuntal
974236bda9 os, syscall: support ill-formed UTF-16 strings on Windows
Windows UTF-16 strings can contain unpaired surrogates, which can't be
decoded into a valid UTF-8 string. This file defines a set of functions
that can be used to encode and decode potentially ill-formed UTF-16
strings by using the
[the WTF-8 encoding](https://simonsapin.github.io/wtf-8/).

WTF-8 is a strict superset of UTF-8, i.e. any string that is
well-formed in UTF-8 is also well-formed in WTF-8 and the content
is unchanged. Also, the conversion never fails and is lossless.

The benefit of using WTF-8 instead of UTF-8 when decoding a UTF-16
string is that the conversion is lossless even for ill-formed
UTF-16 strings. This property allows to read an ill-formed UTF-16
string, convert it to a Go string, and convert it back to the same
original UTF-16 string.

Fixes #59971

Change-Id: Id6007f6e537844913402b233e73d698688cd5ba6
Reviewed-on: https://go-review.googlesource.com/c/go/+/493036
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Quim Muntal <quimmuntal@gmail.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Paul Hampson <Paul.Hampson@Pobox.com>
2023-05-15 09:26:16 +00:00
Bryan C. Mills
91b8cc0dfa cmd/go/internal/modindex: update index_format.txt
This incorporates the changes from CL 453603 and CL 416178.

Please review carefully: I did my best to read through the CLs, but
I'm not entirely confident I haven't made a mistake.

Fixes #59770.

Change-Id: Ib8937e55dcd11e3f75c16b28519d3d91df1d4da3
Reviewed-on: https://go-review.googlesource.com/c/go/+/492596
Run-TryBot: Bryan Mills <bcmills@google.com>
Auto-Submit: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
2023-05-13 00:22:50 +00:00
James Bartlett
db22489012 cmd/link: fix checks for supported linker flags with relative paths.
The existing way of checking for supported linker flags causes false negatives
when there are relative paths passed to go tool link. This fixes the issue by
calling the external linker in the current working directory, instead of
in a temporary directory.

Fixes #59952

Change-Id: I173bb8b44902f30dacefde1c202586f87667ab70
Reviewed-on: https://go-review.googlesource.com/c/go/+/491796
Run-TryBot: Cherry Mui <cherryyz@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2023-05-12 23:21:11 +00:00
Dmitri Shuralyov
c20b7a072a cmd/dist: use registerStdTestSpecially for normal Go tests only
It was my oversight in CL 463276 to skip registerStdTestSpecially
packages in the race bench test registration loop. Package testdir
has no benchmarks and doesn't need to be skipped. (And if it had
benchmarks, it's very unlikely they'd need any special handling.)

By now there are more cmd/cgo/internal/... packages that are registered
specially, and there isn't a need for their few benchmarks not to be
used for the purpose of race bench tests. If the 3 benchmarks in
cmd/cgo/internal/test were to require something special, then we can
add it to a new registerRaceBenchTestSpecially map with a comment, and
do register them specially in registerTests instead of forgetting to.

This restores the automatic 'go_test_bench:cmd/cgo/internal/test'
registration and reduces prevalence of registerStdTestSpecially a bit.

For #37486.
For #56844.

Change-Id: I1791fe5bf94cb4b4e0859c5fff4e7a3d5a23723e
Reviewed-on: https://go-review.googlesource.com/c/go/+/494656
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
2023-05-12 23:15:29 +00:00
Cherry Mui
994eca4883 test: add escape test for reflect.Value operations
With CL 408826 reflect.Value does not always escape. We need to
make sure Value operations does (or does not) escape the Value
correctly. This CL adds a test.

There are still a few unfortunate cases, where some Value
operations escape more than necessary (comparing to a non-reflect
version of the code), but hard to fix. These are mostly that a
Value would escape conditionally (mostly on the type of the Value),
but currently we don't have a good way to express that.

Change-Id: I9fdfc7584670aa09c5a01f6b2803f2043aaddb65
Reviewed-on: https://go-review.googlesource.com/c/go/+/441938
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
2023-05-12 23:13:19 +00:00
Ian Lance Taylor
719e2b6f09 os, runtime: remove unused implementations of os.sigpipe
Clean up instances that are unused since CL 6450058.

Change-Id: I0e9ae28cfa83fcc8abda8f5eca9c7dfc2c1c4ad1
Reviewed-on: https://go-review.googlesource.com/c/go/+/477396
Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Bypass: Ian Lance Taylor <iant@golang.org>
2023-05-12 21:33:26 +00:00
Cherry Mui
3e19dc2b23 reflect: make Value.IsZero not escape
With CL 408826 reflect.Value not always escape. IsZero still
escapes the Value because in some cases it passes the Value
pointer to the equal function, which is function pointer. Equal
functions are compiler generated and never escapes, but the escape
analysis doesn't know. Add noescape to help.

Change-Id: Ica397c2be77cac9e8a46d03d70bac385b0aa9e82
Reviewed-on: https://go-review.googlesource.com/c/go/+/441937
Reviewed-by: David Chase <drchase@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2023-05-12 21:13:39 +00:00
Cherry Mui
be4fe08b57 reflect: do not escape Value.Type
Types are either static (for compiler-created types) or heap
allocated and always reachable (for reflection-created types, held
in the central map). So there is no need to escape types.

With CL 408826 reflect.Value does not always escape. Some functions
that escapes Value.typ would make the Value escape without this CL.

Had to add a special case for the inliner to keep (*Value).Type
still inlineable.

Change-Id: I7c14d35fd26328347b509a06eb5bd1534d40775f
Reviewed-on: https://go-review.googlesource.com/c/go/+/413474
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-by: David Chase <drchase@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2023-05-12 21:11:51 +00:00
Cherry Mui
0ac72f8b96 reflect: allow Value be stack allocated
Currently, reflect.ValueOf forces the referenced object to be heap
allocated. This CL makes it possible to be stack allocated. We
need to be careful to make sure the compiler's escape analysis can
do the right thing, e.g. channel send, map assignment, unsafe
pointer conversions.

Tests will be added in a later CL.

CL 408827 might help ensure the correctness.

Change-Id: I8663651370c7c8108584902235062dd2b3f65954
Reviewed-on: https://go-review.googlesource.com/c/go/+/408826
Run-TryBot: Cherry Mui <cherryyz@google.com>
Reviewed-by: David Chase <drchase@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
2023-05-12 21:11:33 +00:00
Michael Pratt
cce67690b8 cmd/compile: remove post-inlining PGO graph dump
The RedirectEdges logic is fragile and not quite complete (doesn't
update in-edges), which adds overhead to maintaining this package.

In my opinion, the post-inlining graph doesn't provide as much value as
the pre-inlining graph. Even the latter I am not convinced should be in
the compiler rather than an external tool, but it is comparatively
easier to maintain.

Drop it for now. Perhaps we'll want it back in the future for tracking
follow-up optimizations, but for now keep things simple.

Change-Id: I3133a2eb97893a14a6770547f96a3f1796798d17
Reviewed-on: https://go-review.googlesource.com/c/go/+/494655
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Michael Pratt <mpratt@google.com>
2023-05-12 20:17:06 +00:00
Michael Pratt
4b6a542048 cmd/compile/internal/pgo: remove node weights from IRNode
Actual PGO operation doesn't use these weights at all. They are
theoretically used when printing a dot graph for debugging, but that
doesn't actually work because these weights are always zero.

These fields are initialized by looking for a NodeMap entry with key
{CallerName: sym, CalleeName: "", CallSiteOffset: 0}. These entries will
never exist, as we never put entries in NodeMap without CalleeName.

Since they aren't really used and don't work, just remove them entirely,
which offers nice simplification.

This leaves IRNode with just a single field. I keep the type around as a
future CL will make the *ir.Func optional, allowing nodes with a name
but no IR.

Change-Id: I1646654cad1d0779ce071042768ffad2a7e6ff49
Reviewed-on: https://go-review.googlesource.com/c/go/+/494616
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Michael Pratt <mpratt@google.com>
2023-05-12 20:16:55 +00:00
Carlos Amedee
c12f53864b time: update windows zoneinfo_abbrs
The primary branch of the github.com/unicode-org/cldr repository
has changed to main instead of master. This changes the branch used
to download the Windows zone file.

Ran:
go generate time

For #58113

Change-Id: Idb3dcaf44fc52d4b6abfed5a3ca6cd6f745dc3f8
Reviewed-on: https://go-review.googlesource.com/c/go/+/493477
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Quim Muntal <quimmuntal@gmail.com>
Auto-Submit: Carlos Amedee <carlos@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
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Run-TryBot: Carlos Amedee <carlos@golang.org>
2023-05-12 20:01:59 +00:00
Austin Clements
804850d87b cmd/cgo/internal/testcarchive: build on all platforms
This test package uses syscall.SIGSEGV and syscall.SIGPIPE, which are
defined on most, but not all platforms. Normally this test runs as
part of dist test, which only registers this test on platforms that
support c-archive build mode, which includes all platforms that define
these signals. But this doesn't help if you're just trying to type
check everything in cmd.

Add build constraints so that this package type checks on all
platforms.

Fixes #60164.
Updates #37486.

Change-Id: Id3f9ad4cc9f80146de16aedcf85d108a77215ae6
Reviewed-on: https://go-review.googlesource.com/c/go/+/494659
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Austin Clements <austin@google.com>
Auto-Submit: Austin Clements <austin@google.com>
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2023-05-12 19:43:58 +00:00
Austin Clements
57009d4504 cmd/cgo/internal/testsanitizers: build on all platforms
This test package uses the Pdeathsig field of syscall.SysProcAttr,
which is only available on a few platforms. Currently, dist test
checks for compatible platforms and only registers it as part of
all.bash on platforms where it can build. But this doesn't help if
you're just trying to type check everything in cmd.

Make this package pass type checking by moving the condition from dist
into build tags on the test package itself.

For #60164.
Updates #37486.

Change-Id: I58b12d547c323cec895320baa5fca1b82e99d1b5
Reviewed-on: https://go-review.googlesource.com/c/go/+/494658
Auto-Submit: Austin Clements <austin@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Austin Clements <austin@google.com>
2023-05-12 19:43:56 +00:00
Mateusz Poliwczak
f2fcea5009 net: add tests for forceGoDNS and forceCgoDNS
There was a bug in forceCgoDNS (CL 479416), it was fixed by CL 487196, so
add a test case for it.

Change-Id: I2010374451ef236dc2898d9e9ea006eb8b40d02e
GitHub-Last-Rev: 34a84fad33
GitHub-Pull-Request: golang/go#59922
Reviewed-on: https://go-review.googlesource.com/c/go/+/491255
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2023-05-12 19:21:10 +00:00
Dmitri Shuralyov
202ba7deab cmd/internal/bootstrap_test: update TestExperimentToolID for Go 1.21
This test is configured to run only when explicitly requested due to
being costly. Apply two updates so it can run on the toolchain today:

- overlay GOROOT/lib for zoneinfo.zip (similarly to CL 462279)
- stop expecting framepointer to be listed in the GOEXPERIMENT
  section of the compiler version (see CL 49252 and CL 249857)

I checked if by now there's another test that would report a problem
if the fix made in CL 186200 had regressed. Running all.bash locally
with GO_TEST_SHORT=0 GO_BUILDER_NAME=darwin-arm64-longtest passed ok,
while this manual test did catch the problem.

Also simplify the test implementation while here so it's less different
from TestRepeatBootstrap.

For #33091.

Change-Id: I14eea18c19c2e8996bcba31c80e03dcf679f56ab
Reviewed-on: https://go-review.googlesource.com/c/go/+/493475
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
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Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
2023-05-12 18:47:14 +00:00
Bryan C. Mills
acd8dc9583 cmd/go: add a regression test for Git configurations with safe.bareRepository=explicit
Change-Id: I394265a4bf849ec89ac44c67aeaaaca801e46caa
Reviewed-on: https://go-review.googlesource.com/c/go/+/493476
Auto-Submit: Bryan Mills <bcmills@google.com>
Reviewed-by: Emily Shaffer <emilyshaffer@google.com>
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
Run-TryBot: Bryan Mills <bcmills@google.com>
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2023-05-12 17:56:45 +00:00
Zeke Lu
d6cc77fa25 cmd/go/internal/modload: reject the -modfile flag in workspace mode
Currently, in workspace mode, the -modfile flag affects all the modules
listed in the go.work file. This is not desirable most of the time. And
when it results in an error, the error message does not help.

For example, when there are more than one modules listed in the go.work
file, running "go list -m -modfile=path/to/go.mod" gives this error:
  go: module example.com/foo appears multiple times in workspace

This change reject -modfile flag explicitly with this error message:
  go: -modfile cannot be used in workspace mode

While at here, correct some typos in the modload package.

Fixes #59996.

Change-Id: Iff4cd9f3974ea359889dd713a747b6932cf42dfd
GitHub-Last-Rev: 7dbc9c3f2f
GitHub-Pull-Request: golang/go#60033
Reviewed-on: https://go-review.googlesource.com/c/go/+/493315
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Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
Auto-Submit: Bryan Mills <bcmills@google.com>
Run-TryBot: Bryan Mills <bcmills@google.com>
2023-05-12 17:42:47 +00:00
Jabar Asadi
9eceffdf12 strings: correct NewReader documentation
The provided description for `NewReader` says that the underlying string is read-only. but the following example shows that this is not the case.
<br />

rd := strings.NewReader("this is a text")

rd.Reset("new text") <--- underlying string gets updated here

Change-Id: I95c7099c2e63670c84307d4317b702bf13a4025a
GitHub-Last-Rev: a16a60b0f1
GitHub-Pull-Request: golang/go#60074
Reviewed-on: https://go-review.googlesource.com/c/go/+/493817
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
2023-05-12 17:40:51 +00:00
Dmitri Shuralyov
7cc4516ac8 internal/testdir: move to cmd/internal/testdir
The effect and motivation is for the test to be selected when doing
'go test cmd' and not when doing 'go test std' since it's primarily
about testing the Go compiler and linker. Other than that, it's run
by all.bash and 'go test std cmd' as before.

For #56844.
Fixes #60059.

Change-Id: I2d499af013f9d9b8761fdf4573f8d27d80c1fccf
Reviewed-on: https://go-review.googlesource.com/c/go/+/493876
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
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Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
2023-05-12 17:18:08 +00:00
Rob Findley
cecf8b9328 go/types: minor refactoring of missingMethod following CL 494615
Make the refactoring suggested by gri@ in that CL.

Change-Id: I6c363f3ba5aaa3c616d3982d998b989de7046a86
Reviewed-on: https://go-review.googlesource.com/c/go/+/494617
Run-TryBot: Robert Findley <rfindley@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2023-05-12 15:47:10 +00:00
Robert Griesemer
803a7dfb80 go/types, types2: call recordInstance in instantiateSignature
This matches the pattern we use for type instantiations and
factors out the recordInstance and associated assert calls.

Change-Id: Ib7731c0e619aca42f418cb2d9a153785aaf014cb
Reviewed-on: https://go-review.googlesource.com/c/go/+/494457
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Griesemer <gri@google.com>
2023-05-12 15:20:47 +00:00
Rob Findley
2ce84c3a6e go/types, types2: be sure to type-check wrong methods in missingMethod
In the case of a wrong method, we were not ensuring that it was
type-checked before passing it to funcString.

Formatting the missing method error message requires a fully set-up
signature.

Fixes #59848

Change-Id: I1467e036afbbbdd00899bfd627a945500dc709c2
Reviewed-on: https://go-review.googlesource.com/c/go/+/494615
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Robert Findley <rfindley@google.com>
Reviewed-by: Alan Donovan <adonovan@google.com>
2023-05-12 14:53:44 +00:00
Dmitri Shuralyov
ed3ea52081 cmd/go: diff .so files quietly in TestScript/build_plugin_reproducible
This avoids printing verbose binary data and making bell sounds when the
test fails. The binary data can be inspected via other means if needed.

For #58557.

Change-Id: Ia1c4f2c6b9ff2cf6f97611cf335b978fc7bb201f
Reviewed-on: https://go-review.googlesource.com/c/go/+/494577
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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Run-TryBot: Bryan Mills <bcmills@google.com>
2023-05-12 14:29:53 +00:00
Felix Geisendörfer
c3db9af3a6 runtime: remove unused skip arg from fpTracebackPCs
This was accidentally left behind when moving the logic to set the skip
sentinel in pcBuf to the caller.

Change-Id: Id7565f6ea4df6b32cf18b99c700bca322998d182
Reviewed-on: https://go-review.googlesource.com/c/go/+/489095
Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Felix Geisendörfer <felix.geisendoerfer@datadoghq.com>
2023-05-12 13:51:15 +00:00
Austin Clements
6d2309b576 Revert "reflect: change rtype so that it (not *rtype) implements Type"
This reverts CL 487558, which is causing test failures in Google. See
b/282133554.

Change-Id: Icafa4ffc6aaa24a363abb90b8ae0b0183aca2b89
Reviewed-on: https://go-review.googlesource.com/c/go/+/494410
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Austin Clements <austin@google.com>
Reviewed-by: David Chase <drchase@google.com>
Run-TryBot: Austin Clements <austin@google.com>
2023-05-12 13:32:40 +00:00
Austin Clements
c308e9b54c cmd/dist: drop goTest.dir
At this point all tests are regular packages in std or cmd, so we no
longer need goTest.dir.

Change-Id: I46a0c7b4464b0738e9959e41bf840ba1b73e3590
Reviewed-on: https://go-review.googlesource.com/c/go/+/494194
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
2023-05-12 12:35:09 +00:00
Austin Clements
b679e31cdb test/bench: delete
Russ added test/bench/go1 in CL 5484071 to have a stable suite of
programs to use as benchmarks. For the compiler and runtime we had
back then, those were reasonable benchmarks, but the compiler and
runtime are now far more sophisticated and these benchmarks no longer
have good coverage. We also now have better benchmark suites
maintained outside the repo (e.g., golang.org/x/benchmarks). Keeping
test/bench/go1 at this point is actively misleading.

Indirectly related to #37486, as this also removes the last package
dist test runs outside of src/.

Change-Id: I2867ef303fe48a02acce58ace4ee682add8acdbf
Reviewed-on: https://go-review.googlesource.com/c/go/+/494193
Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Russ Cox <rsc@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
2023-05-12 12:35:07 +00:00
Austin Clements
3943fc14d3 misc/reboot: move to cmd/internal/bootstrap_test
This is the last test run from misc by dist.

For #37486.

Change-Id: I1a70ded29ba0de548c9a16611ba987a258121e80
Reviewed-on: https://go-review.googlesource.com/c/go/+/493606
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
2023-05-12 12:35:05 +00:00
Austin Clements
b26c3927bd cmd/dist: drop host test support
Host tests are used for emulated builders that use cross-compilation.
Today, this is the android-{386,amd64}-emu builders and all wasm
builders. These builders run all.bash on a linux/amd64 host to build
all packages and most tests for the emulated guest, and then run the
resulting test binaries inside the emulated guest. A small number of
test packages are “host tests”: these run on the host rather than the
guest because they invoke the Go toolchain themselves (which only
lives on the host) and run the resulting binaries in the guest.

However, this host test mechanism is barely used today, despite being
quite complex. This complexity is also causing significant friction to
implementing structured all.bash output.

As of this CL, the whole host test mechanism runs a total of 10 test
cases on a total of two builders (android-{386,amd64}-emu). There are
clearly several tests that are incorrectly being skipped, so we could
expand it to cover more test cases, but it would still apply to only
two builders. Furthermore, the two other Android builders
(android-{arm,arm64}-corellium) build the Go toolchain directly inside
Android and also have access to a C toolchain, so they are able to get
significantly better test coverage without the use of host tests. This
suggests that the android-*-emu builders could do the same. All of
these tests are cgo-related, so they don't run on the wasm hosts
anyway.

Given the incredibly low value of host tests today, they are not worth
their implementation complexity and the friction they cause. Hence,
this CL drops support for host tests. (This was also the last use of
rtSequential, so we drop support for sequential tests, too.)

Fixes #59999.

Change-Id: I3eaca853a8907abc8247709f15a0d19a872dd22d
Reviewed-on: https://go-review.googlesource.com/c/go/+/492986
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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2023-05-12 12:35:03 +00:00
Austin Clements
689041160f cmd/dist,internal/testdir: more cooperative host test mechanism
On cross-compiling builder machines, we run internal/testdir on the
host, where it can access the Go toolchain to build binaries for the
guest and run them through an exec wrapper. Currently this uses dist
test's existing host test mechanism, which is quite complicated and we
are planning to eliminate (#59999).

Switch internal/testdir to use a more cooperative mechanism. With this
CL, dist still understands that it has to build and run the test using
the host GOOS/GOARCH, but rather than doing complicated manipulation
of environment variables itself, it passes the guest GOOS/GOARCH to
the test, which can easily inject it into its environment. This means
dist test can use "go test" directly, rather than having to split up
the build and run steps.

For #37486.

Change-Id: I556938c0b641960bb778b88b13f2b26256edc7c9
Reviewed-on: https://go-review.googlesource.com/c/go/+/492985
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2023-05-12 12:35:01 +00:00
Austin Clements
b6c75c5fb1 test,internal/testdir: don't set GOOS/GOARCH
The test directory driver currently sets the GOOS/GOARCH environment
variables if they aren't set. This appears to be in service of a
single test, test/env.go, which was introduced in September 2008 along
with os.Getenv. It's not entirely clear what that test is even trying
to check, since runtime.GOOS isn't necessarily the same as $GOOS. We
keep the test around because golang.org/x/tools/go/ssa/interp uses it
as a test case, but we simplify the test and eliminate the need for
the driver to set GOOS/GOARCH.

Change-Id: I5acc0093b557c95d1f0a526d031210256a68222d
Reviewed-on: https://go-review.googlesource.com/c/go/+/493601
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
2023-05-12 12:34:59 +00:00
Austin Clements
6693807668 misc: update go.mod comment
We just moved all of the cgo tests out of misc, and this comment was
already a little stale. Update it.

Change-Id: Ide711cce53dbe6d9675de587c1d73514b063e952
Reviewed-on: https://go-review.googlesource.com/c/go/+/493600
Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2023-05-12 12:00:09 +00:00
Austin Clements
0efbec91cd misc/swig: move tests to cmd/cgo/internal
This moves the misc/swig test to cmd/cgo/internal.

This lets these tests access facilities in internal/testenv. It's also
now just a normal test that can run as part of the cmd tests.

For #37486.

Change-Id: Ibe5026219999d175aa0a310b9886bef3f6f9ed17
Reviewed-on: https://go-review.googlesource.com/c/go/+/492722
Run-TryBot: Austin Clements <austin@google.com>
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Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
2023-05-12 12:00:07 +00:00
Austin Clements
2484e1331a misc/swig: restructure as a driver
Currently, the misc/swig tests directly use Swig and C++ and will fail
to build if either Swig or a C++ compiler are not present. Typically,
we hide this fact from users because dist test itself checks for Swig
and a C++ compiler before even attempting to run this test, though
users will see this is they try to go test ./... from misc.

However, we're about to move the misc/swig tests into the cmd module,
where they will be much more visible and much more likely to run
unintentionally. To prevent build errors, this CL restructures these
tests into a single pure Go test plus two test packages hidden in
testdata. This is relatively easy to do for this test because there
are only four test cases total. The pure Go test can check for the
necessary build tools before trying to build and run the tests in
testdata. This also gives us the opportunity to move the LTO variant
of these tests out of dist and into the test itself, simplifying dist.

For #37486.

Change-Id: Ibda089b4069e36866cb31867a7006c790be2d8b1
Reviewed-on: https://go-review.googlesource.com/c/go/+/493599
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Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
2023-05-12 12:00:05 +00:00
Austin Clements
711609d55f cmd/go: fix swigOne action with -n
Currently, if cmd/go builds a swig file with the -n (dry run) flag, it
will print the swig command invocation without executing it, but then
attempt to actually rename one of swig's output files, which will
fail. Make this rename conditional on -n. While we're here, we fix the
missing logging of the rename command with -x, too.

Change-Id: I1f6e6efc53dfe4ac5a42d26096679b97bc322827
Reviewed-on: https://go-review.googlesource.com/c/go/+/493255
Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
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2023-05-12 12:00:04 +00:00
Austin Clements
a3f69c778f misc/cgo: move registerCgoTests tests to cmd/cgo/internal
This moves the remaining cgo tests.

For #37486.

Change-Id: I99dea5a312a1974de338461a8b02242e5c1bae62
Reviewed-on: https://go-review.googlesource.com/c/go/+/492721
Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
2023-05-12 12:00:02 +00:00
Austin Clements
af64b75b67 misc/cgo/test: add cgo build constraints
We're about to move this package to cmd/cgo/internal, where it will
get caught up in the "CGO_ENABLED=0 go install cmd" done by make.bash.
Currently, building this package with CGO_ENABLED=0 fails because it
contains several source files that don't themselves import "C", but do
import a subdirectory where that package imports "C" and thus has no
exported API.

Fix the CGO_ENABLED=0 build of this package by adding the necessary
cgo build tags. Not all source files need it, but this CL makes
"CGO_ENABLED=0 go test -c" work in this package.

For #37486.

Change-Id: Id137cdfbdd950eea802413536d990ab642ebcd7e
Reviewed-on: https://go-review.googlesource.com/c/go/+/493215
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Run-TryBot: Austin Clements <austin@google.com>
2023-05-12 12:00:00 +00:00
Austin Clements
a76b073712 misc/cgo/test: fix vet error
Vet's cgocall check fails on misc/cgo/test with "possibly passing Go
type with embedded pointer to C". This error is confusing, but the
cgocall check is looking for passing pointers to Go slices to C, which
is exactly what this test is doing. Normally we don't notice this
because vet doesn't run on misc, but we're about to move this test to
cmd/cgo/internal, where vet will start failing.

I'm not sure why we're passing a pointer to a slice here. It's
important that we call a C function with an unsafe.Pointer to memory
containing a pointer to test #25941 and that the result is this call
is then passed to another C function for #28540. This CL maintains
these two properties without the use of a slice.

For #37486.

Change-Id: I672a3c35931a59f99363050498d6f0c80fb6cd98
Reviewed-on: https://go-review.googlesource.com/c/go/+/493137
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Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2023-05-12 11:59:58 +00:00