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56188 Commits

Author SHA1 Message Date
Cuong Manh Le
0853f8caec cmd/compile: add test that non-name call does not allocate
Updates #57434

Change-Id: Ib90c228f95c3d61204e60f63d7de55884d839e05
Reviewed-on: https://go-review.googlesource.com/c/go/+/459496
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
2023-04-14 20:24:18 +00:00
Tobias Klauser
5da1f41513 embed/internal/embedtest: test openFile.ReadAt with non-zero offset
Also fix log messages to report expected values in the standard "got foo,
want bar" format.

Change-Id: I6a9fd4abe1f86c2651c72c2bf7ac4588028e5923
Reviewed-on: https://go-review.googlesource.com/c/go/+/484715
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: David Chase <drchase@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
2023-04-14 20:10:16 +00:00
Bryan C. Mills
750e91152b cmd/compile/internal/importer,go/internal/gcimporter: use the 'go' command from build.Default.GOROOT in lookupGorootExport
Also set GOROOT explicitly in case it is set to something else in the
caller's environment.

Fixes #59598.

Change-Id: I5599ed1183b23187fc3b976786f3c320d42ef4f3
Reviewed-on: https://go-review.googlesource.com/c/go/+/484756
Run-TryBot: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Bryan Mills <bcmills@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
2023-04-14 20:09:13 +00:00
Joel Sing
dd53a43920 cmd/link/internal/ld: disable execute-only for external linking on openbsd/arm64
The Go arm64 assembler places constants into the text section of a binary.
OpenBSD 7.3 enabled xonly by default on OpenBSD/arm64. This means that any
externally linked Go binary now segfaults. Disable execute-only when invoking
the external linker on openbsd/arm64, in order to work around this issue.

Updates #59615

Change-Id: I1a291293da3c6e4409b21873d066ea15e9bfe280
Reviewed-on: https://go-review.googlesource.com/c/go/+/484555
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Aaron Bieber <deftly@gmail.com>
Run-TryBot: Joel Sing <joel@sing.id.au>
Reviewed-by: Than McIntosh <thanm@google.com>
2023-04-14 19:17:15 +00:00
Rob Findley
35ec948de7 go/types,types2: fix panic in reverse type inference when -lang<go1.18
Due to reverse type inference, we may not have an index expression when
type-checking a function instantiation. Fix a panic when the index expr
is nil.

Fixes #59639

Change-Id: Ib5de5e49cdb7b339653e4fb775bf5c5fdb3c6907
Reviewed-on: https://go-review.googlesource.com/c/go/+/484757
Reviewed-by: Russ Cox <rsc@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Robert Findley <rfindley@google.com>
2023-04-14 18:40:36 +00:00
Joel Sing
7c2550b7bb cmd/compile: add math benchmarks
This adds benchmarks for division and modulus of 64 bit signed and unsigned
integers.

Updates #59089

Change-Id: Ie757c6d74a1f355873e79619eae26ece21a8f23e
Reviewed-on: https://go-review.googlesource.com/c/go/+/482656
Reviewed-by: David Chase <drchase@google.com>
Run-TryBot: Joel Sing <joel@sing.id.au>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
2023-04-14 18:30:08 +00:00
Cuong Manh Le
4c20c0a826 cmd/compile/internal/ir: remove HasBreak field of some nodes
CL 484435 removed all usages of them.

Change-Id: I00f21640c7573921472ff3f88cfa92837dc3f9ad
Reviewed-on: https://go-review.googlesource.com/c/go/+/484436
Reviewed-by: Keith Randall <khr@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
2023-04-14 17:58:29 +00:00
Cuong Manh Le
9fab498ab1 cmd/compile/internal/typecheck: remove some un-used functions
CL 405094 removed the only caller of markBreak/setHasBreak and
isTermNodes/isTermNode.

importlist variable is only used in old frontend.

Change-Id: I9472f2c0017b6200847999f2cea0e9021a1b14e2
Reviewed-on: https://go-review.googlesource.com/c/go/+/484435
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Keith Randall <khr@google.com>
2023-04-14 17:58:21 +00:00
Cuong Manh Le
70451004bd cmd/compile: stop constructing untyped nodes when instrumenting asan
The code is using typecheck.ConvNop to convert from untyped int to
uintptr. However, that left the literal node untyped. It often does not
matter, because typecheck.EvalConst will see the OCONVNOP, and replace
the node with a new constant node.

This CL changes the code to construct the constant node directly using
typecheck.DefaultLit, so the last dependecy of typecheck.EvalConst will
go away, next CL can safely remove it from the code base.

Change-Id: Ie5a3d1ff6d3b72be7b8c43170eaa4f6cbb3206fc
Reviewed-on: https://go-review.googlesource.com/c/go/+/484317
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
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2023-04-14 17:58:12 +00:00
Cuong Manh Le
74b52d9519 cmd/compile: better code generation for constant-fold switch
CL 399694 added constant-fold switch early in compilation. So function:

func f() string {
    switch intSize {
    case 32:
        return "32"
    case 64:
        return "64"
    default:
        panic("unreachable")
    }
}

will be constant-fold to:

func f() string {
    switch intSize {
    case 64:
        return "64"
    }
}

When this function get inlined, there is a check whether we can delay
declaring the result parameter until the "return" statement. For the
original function, we can't delay the result, because there's more than
one return statement. However, the constant-fold one can, because
there's on one return statement in the body now. The result parameter
~R0 ends up declaring inside the switch statement scope.

Now, when walking the switch statement, it's re-written into if-else
statement. Without typecheck.EvalConst, the if condition "if 64 == 64"
is passed as-is to the ssa generation pass. Because "64 == 64" is not a
constant, the ssagen creates normal blocks for branching the results.
This confuses the liveness analysis, because ~R0 is only live inside the
if block. With typecheck.EvalConst, "64 == 64" is evaluated to "true",
so ssagen can branch the result without emitting conditional blocks.

Instead, the constant-fold can be re-written as:

switch {
case true:
    // Body
}

So it does not depend on the delay results check during inlining. Adding
a test, which will fail when typecheck.EvalConst is removed, so we can
do the cleanup without breaking things.

Change-Id: I638730bb147140de84260653741431b807ff2f15
Reviewed-on: https://go-review.googlesource.com/c/go/+/484316
Reviewed-by: Keith Randall <khr@google.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
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2023-04-14 17:58:01 +00:00
Cuong Manh Le
47e2d7495f cmd/compile: move unsafe operation out of EvalConst
So future CLs can get rid of EvalConst entirely.

Change-Id: Ic8e147fd76e53c002a6ceda2fb3be979459bf865
Reviewed-on: https://go-review.googlesource.com/c/go/+/484315
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Keith Randall <khr@google.com>
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2023-04-14 17:57:49 +00:00
Cuong Manh Le
20c349e534 cmd/compile: reenable inline static init
Updates #58293
Updates #58339
Fixes #58439

Change-Id: I06d2d92f86fa4a672d69515c4066d69d3e0fc75b
Reviewed-on: https://go-review.googlesource.com/c/go/+/467016
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
2023-04-14 17:57:36 +00:00
Cuong Manh Le
a141c58c85 cmd/compile: handle string concatenation in static init inliner
Static init inliner is using typecheck.EvalConst to handle string
concatenation expressions. But static init inliner may reveal constant
expressions after substitution, and the compiler needs to evaluate those
expressions in non-constant semantic. Using typecheck.EvalConst, which
always evaluates expressions in constant semantic, is not the right
choice.

For safety, this CL fold the logic to handle string concatenation to
static init inliner, so there won't be regression in handling constant
expressions in non-constant semantic. And also, future CL can simplify
typecheck.EvalConst logic.

Updates #58293
Updates #58339
Fixes #58439

Change-Id: I74068d99c245938e576afe9460cbd2b39677bbff
Reviewed-on: https://go-review.googlesource.com/c/go/+/466277
Reviewed-by: Keith Randall <khr@google.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
2023-04-14 17:57:14 +00:00
Bryan C. Mills
ac9d777caf path/filepath,cmd/go: skip tests involving double-symlinks on ios
For #59586.

Change-Id: I092f7a4abce1074b8eef64a3ecf9fc187914709b
Reviewed-on: https://go-review.googlesource.com/c/go/+/484755
Run-TryBot: Bryan Mills <bcmills@google.com>
Auto-Submit: Bryan Mills <bcmills@google.com>
Reviewed-by: David Chase <drchase@google.com>
TryBot-Bypass: Bryan Mills <bcmills@google.com>
2023-04-14 17:01:07 +00:00
Keith Randall
2b92c39fe0 cmd/link: establish dependable package initialization order
(This is a retry of CL 462035 which was reverted at 474976.
The only change from that CL is the aix fix SRODATA->SNOPTRDATA
at inittask.go:141)

As described here:

https://github.com/golang/go/issues/31636#issuecomment-493271830

"Find the lexically earliest package that is not initialized yet,
but has had all its dependencies initialized, initialize that package,
 and repeat."

Simplify the runtime a bit, by just computing the ordering required
in the linker and giving a list to the runtime.

Update #31636
Fixes #57411

RELNOTE=yes

Change-Id: I28c09451d6aa677d7394c179d23c2c02c503fc56
Reviewed-on: https://go-review.googlesource.com/c/go/+/478916
Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
2023-04-14 16:55:22 +00:00
Daniel Martí
d4bcfe4e83 regexp: fix copy-paste typo on Regexp.UnmarshalText doc
I noticed that https://go.dev/cl/479401 called both methods MarshalText
in the godoc, so fix that.

While here, add more godoc links for better usability.

Change-Id: I8f10bafeca6a1ca1c1ed9be7a7dd9fdecfe991a0
Reviewed-on: https://go-review.googlesource.com/c/go/+/484335
Auto-Submit: Ian Lance Taylor <iant@google.com>
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: David Chase <drchase@google.com>
2023-04-14 16:28:44 +00:00
Russ Cox
4bd20ec884 cmd/go: make go line declare minimum required Go version
For #57001, enforce the go line as declaring the minimum required
version of Go that can compile a module.

Modules that maintain compatibility with old versions of Go
but want to make use of new features in //go:build-constrained files
will be able to do so: the //go:build constraint will be interpreted
as changing the minimum Go version for that file and will unlock
the Go features allowed in that version.

Change-Id: Ibeeb7c93ce7ea2e5187d78af0757cbfac19484a0
Reviewed-on: https://go-review.googlesource.com/c/go/+/476279
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Russ Cox <rsc@golang.org>
Auto-Submit: Russ Cox <rsc@golang.org>
2023-04-14 16:08:34 +00:00
Russ Cox
804d786a30 go/types, cmd/compile/internal/types2: use per-file Go version
For #57001, compilers and others tools will need to understand that
a different Go version can be used in different files in a program,
according to the //go:build lines in those files.

Update go/types and cmd/compile/internal/types2 to track and
use per-file Go versions. The two must be updated together because
of the files in go/types that are generated from files in types2.

The effect of the //go:build go1.N line depends on the Go version
declared in the 'go 1.M' line in go.mod. If N > M, the file gets go1.N
semantics when built with a Go 1.N or later toolchain
(when built with an earlier toolchain the //go:build line will keep
the file from being built at all).
If N < M, then in general we want the file to get go1.N semantics
as well, meaning later features are disabled. However, older Go 1.M
did not apply this kind of downgrade, so for compatibility, N < M
only has an effect when M >= 21, meaning when using semantics
from Go 1.21 or later.

For #59033.

Change-Id: I93cf07e6c687d37bd37a9461dc60cc032bafd01d
Reviewed-on: https://go-review.googlesource.com/c/go/+/476278
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Russ Cox <rsc@golang.org>
Reviewed-by: Robert Griesemer <gri@google.com>
Run-TryBot: Russ Cox <rsc@golang.org>
2023-04-14 16:08:31 +00:00
Than McIntosh
8854be4180 Revert "cmd/compile: allow more inlining of functions that construct closures"
This reverts commit http://go.dev/cl/c/482356.

Reason for revert: Reverting this change again, since it is causing additional failures in google-internal testing.

Change-Id: I9234946f62e5bb18c2f873a65e8b298d04af0809
Reviewed-on: https://go-review.googlesource.com/c/go/+/484735
Reviewed-by: Florian Zenker <floriank@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
Auto-Submit: Than McIntosh <thanm@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
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Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
2023-04-14 14:45:59 +00:00
Daniel Frederick Crisman
e7b04a3e16 doc: correct spelling on placeholder
"placeholder" (no space) is already used in the spec and seems to be
the preferred option.

Removed space from "place holder".

Change-Id: I9b98f62f0e3f5adb019b99f5271cc9d19abf505e
GitHub-Last-Rev: ed5aaf9d02
GitHub-Pull-Request: golang/go#59626
Reviewed-on: https://go-review.googlesource.com/c/go/+/484576
Reviewed-by: Ian Lance Taylor <iant@google.com>
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2023-04-13 23:15:09 +00:00
Michael Matloob
11dd32d729 cmd/go: parallelize part of loading test packages in list
load.TestPackagesAndErrors is given an optional done func() argument.
If set, load.TestPackagesAndErrors will perform part of its work
asynchronously and call done when done. This allows go list to run
testPackagesAndErrors so that the parallelizable parts of
TestPackagesAndErrors run in parallel, making go list -e faster.

Fixes #59157
Change-Id: I11f45bbb3ea4ceda928983bcf9fd41bfdcc4fbd9
Reviewed-on: https://go-review.googlesource.com/c/go/+/484496
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
2023-04-13 22:30:28 +00:00
Achille Roussel
53c0158905 wasm: restrict supported types in go:wasmimport function signatures
Changes the set of types supported in functions declared with the
go:wasmimport directive to only allow 32 bits and 64 bits integers
and floats, as well as unsafe.Pointer in parameters only. Both the
compiler code and the standard library are updated because the new
restrictions require modifying the use of go:wasmimport in the
syscall and runtime packages.

In preparation of enabling packages outside of the standard library
to use the go:wasmimport directive, the error messages are modified
to carry more context and use ErrorfAt instead of Fatalf to avoid
printing the compiler stack trace when a function with an invalid
signature is encountered.

Fixes #59156

Change-Id: Ied8317f8ead9c28f0297060ac35a5b5255ab49db
Reviewed-on: https://go-review.googlesource.com/c/go/+/483415
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Johan Brandhorst-Satzkorn <johan.brandhorst@gmail.com>
Reviewed-by: David Chase <drchase@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Johan Brandhorst-Satzkorn <johan.brandhorst@gmail.com>
2023-04-13 18:43:20 +00:00
Russ Cox
92a3cb9ed1 go/parser: report //go:build-derived Go version in ast.File.GoVersion
For #57001, compilers and others tools will need to understand that
a different Go version can be used in different files in a program,
according to the //go:build lines in those files.

Update go/parser to populate the new ast.File.GoVersion field.

This requires running the go/scanner in ParseComments mode
always and then implementing discarding of comments in the
parser instead of the scanner. The same work is done either way,
since the scanner was already preparing the comment result
and then looping. The loop has just moved into go/parser.

Also make the same changes to cmd/compile/internal/syntax,
both because they're necessary and to keep in sync with go/parser.

For #59033.

Change-Id: I7b867f5f9aaaccdca94af146b061d16d9a3fd07f
Reviewed-on: https://go-review.googlesource.com/c/go/+/476277
Auto-Submit: Russ Cox <rsc@golang.org>
Reviewed-by: Robert Griesemer <gri@google.com>
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Run-TryBot: Russ Cox <rsc@golang.org>
2023-04-13 18:39:29 +00:00
Ian Lance Taylor
3de5b4da26 slices: amortize allocations in Insert
Fixes #54948

Change-Id: I467afb940b539b100dcce687b05914a9da7b9ed2
Reviewed-on: https://go-review.googlesource.com/c/go/+/484159
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Valentin Deleplace <deleplace@google.com>
2023-04-13 17:55:12 +00:00
Bryan C. Mills
74c296b69f path/filepath: add test cases for walking a symlink-to-symlink-to-dir
The "double link with slash" test is skipped on darwin due to an
apparent kernel / libc bug. If the bug is present on other platforms
too, I'd like to know about it.

For #59586.

Change-Id: I4bdd6a80a3ed7b0960ea6da30f91a655f317d512
Reviewed-on: https://go-review.googlesource.com/c/go/+/484395
TryBot-Result: Gopher Robot <gobot@golang.org>
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2023-04-13 17:46:03 +00:00
cuiweixie
b5a7f2eef7 maps,runtime: improve maps.Clone
name         old time/op    new time/op    delta
MapClone-10    65.8ms ± 7%    10.3ms ± 2%  -84.30%  (p=0.000 n=10+9)

name         old alloc/op   new alloc/op   delta
MapClone-10    40.2MB ± 0%    40.5MB ± 0%   +0.57%  (p=0.000 n=10+9)

name         old allocs/op  new allocs/op  delta
MapClone-10      20.0 ± 0%      23.0 ± 0%  +15.00%  (p=0.000 n=10+10)

Updates #58740.

Change-Id: I148501e723cb2124f02045400e7ceb36af0871c8
Reviewed-on: https://go-review.googlesource.com/c/go/+/471400
Reviewed-by: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
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Run-TryBot: xie cui <523516579@qq.com>
Reviewed-by: Keith Randall <khr@google.com>
2023-04-13 17:28:28 +00:00
Rob Findley
1312d9e6da go/types,types2: add a test for const initializer panic
Updates #59603

Change-Id: Iff99f45a72a259b57b2ebbc6c0f9ed710add3ae3
Reviewed-on: https://go-review.googlesource.com/c/go/+/484376
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@google.com>
2023-04-13 15:59:36 +00:00
Robert Findley
0742e6dbc0 Revert "go/types, types2: remove unnecessary tests for x.typ == Typ[Invalid]"
This reverts commit 4c49d52439.

Reason for revert: it is trickier than expected to enforce an invariant that x.typ == Typ[Invalid] => x.mode == invalid. For example, builtins have invalid type until their call is evaluated.

I think it is better to keep this defensive code for now. My bad for suggesting this strictness. I will send a follow-up CL with a test that exercises the panic discovered inside Google, and a bit more commentary about what 'invalid' means in both contexts.

Fixes #59603

Change-Id: If291f7268e7ef7ae6cd9bb861bb9af349a729cb2
Reviewed-on: https://go-review.googlesource.com/c/go/+/484375
TryBot-Result: Gopher Robot <gobot@golang.org>
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2023-04-13 15:58:47 +00:00
Rob Findley
3f747d09e4 internal/types: rename 54942.go to issue54942.go
This filename was inconsistent with all others.

Change-Id: I5abd3792a96c5137f45d02ac51ffe3d8d05bb164
Reviewed-on: https://go-review.googlesource.com/c/go/+/484415
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Reviewed-by: Robert Griesemer <gri@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
2023-04-13 15:29:44 +00:00
Daniel Martí
eed0cda44c go/doc/comment: remove unused fields
Change-Id: Ia5b73e6950d0c53144a97e1ad3f231d69dd74fe8
Reviewed-on: https://go-review.googlesource.com/c/go/+/483295
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: David Chase <drchase@google.com>
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Agniva De Sarker <agniva.quicksilver@gmail.com>
2023-04-13 15:25:55 +00:00
Daniel Martí
594d67b540 cmd/gofmt: apply a correct suggestion by gopls
I wrote this code a couple of years back,
and it's unnecessarily verbose for sure.

Change-Id: I684376bf81a995594d90e4faf4deaa2cf51181c3
Reviewed-on: https://go-review.googlesource.com/c/go/+/483296
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2023-04-13 15:25:51 +00:00
Robert Griesemer
45c0a7f27e go/types, types2: factor out inference cycle detector (cleanup)
Change-Id: If3c6724497dfbe8611ffffb4735e47ddc53a742c
Reviewed-on: https://go-review.googlesource.com/c/go/+/484158
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
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Reviewed-by: Robert Griesemer <gri@google.com>
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2023-04-13 14:46:51 +00:00
Robert Griesemer
f05c1941dd go/types, types2: generalize tparamIndex to arbitrary type parameter lists
tparamIndex returns the index of a type parameter given the type
parameter and a list of type parameters. If an index >= 0 is returned,
it is the index assigned to the type parameter (TypeParam.index), and
the index of the type parameter in the provided list of parameters.
For it to work correctly, the type parameter list must be from a single
type parameter declaration.

To allow for lists of arbitrary type parameters (from different generic
signatures), change the implementation to do a linear search. The result
is the index of the type parameter in the provided type parameter list,
which may be different from the index assigned to the type parameter.

The linear search is likely fast enough since type parameter lists tend
to be very short.

Change-Id: I913f97fa4c042abeb535ee86ca6657241a4cf796
Reviewed-on: https://go-review.googlesource.com/c/go/+/483995
Reviewed-by: Robert Griesemer <gri@google.com>
Run-TryBot: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
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2023-04-13 14:44:42 +00:00
Bryan C. Mills
c38d122fd4 cmd/internal/moddeps: preserve PWD more carefully in commands
On macOS, TMPDIR is typically a symlink, and the GOROOT for the
buildlet is in TMPDIR as well. PWD must be preserved in order for
os.Getwd (and functions based on it) to report paths that remain
relative to GOROOT, and paths relative to GOROOT are necessary in
order for filepath.Rel to report subdirectories as subdirectories
(rather than paths with long "../../…" prefixes).

Fortunately, the (*Cmd).Environ method added for #50599 makes
preserving PWD somewhat easier.

This fixes 'go test cmd/internal/moddeps' on the new
darwin-amd64-longtest builder.

For #35678.

Change-Id: Ibaa458bc9a94b44ba455519bb8da445af07fe0d2
Reviewed-on: https://go-review.googlesource.com/c/go/+/484295
Auto-Submit: Bryan Mills <bcmills@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Run-TryBot: Bryan Mills <bcmills@google.com>
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Reviewed-by: Michael Pratt <mpratt@google.com>
2023-04-13 14:14:43 +00:00
Bryan C. Mills
e8fe3b7757 cmd/go: skip TestScript/list_goroot_symlink on darwin
The list_goroot_symlink test relies on fsys.Walk (and ultimately
syscall.Lstat) conforming to POSIX pathname resolution semantics.
POSIX requires that symlinks ending in a slash be fully resolved,
but it appears that lstat in current darwin kernels does not fully
resolve the last pathname component when it is a symlink to a symlink.

For #59586.
For #35678.

Change-Id: I37526f012ba94fa1796b33109a41c3226c967d3e
Reviewed-on: https://go-review.googlesource.com/c/go/+/484216
Run-TryBot: Bryan Mills <bcmills@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
Auto-Submit: Bryan Mills <bcmills@google.com>
TryBot-Bypass: Bryan Mills <bcmills@google.com>
2023-04-13 02:29:25 +00:00
Matthew Dempsky
f58c6cccc4 cmd/compile: fix reproducible build of aliased generic types
Due to a missing "&& !alias" check, the unified linker was treating
type aliases the same as defined types for the purpose of exporting
method bodies. The methods will get exported anyway alongside the
aliased type, so this mistake is normally harmless.

However, if multiple type aliases instantiated the same generic type
but with different type arguments, this could result in the
same (generic) method body being exported multiple times under
different symbol names. Further, because bodies aren't expected to be
exported multiple times, we were sorting them simply based on index.
And consequently, the sort wasn't total and is sensitive to the map
iteration order used while ranging over linker.bodies.

The fix is simply to add the missing "&& !alias" check, so that we
don't end up with duplicate bodies in the first place.

Thanks rsc@ for providing a minimal repro case.

Fixes #59571.

Change-Id: Iaa55968cc7110b601e2f0f9b620901c2d55f7014
Reviewed-on: https://go-review.googlesource.com/c/go/+/484155
Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
2023-04-12 20:54:38 +00:00
Paul E. Murphy
12e65dbdb1 runtime: cleanup ppc64le/linux library startup code
Fix the argument passing to runtime.newosproc0, the ABI0 argument
storing must account for the fixed frame size.

Cleanup the _rt0_ppc64le_linux_lib definition, the assembler
should not generate a stack frame.  And convert it to use the
new ABI wrappers.

Change-Id: Ibc0be8b37f6522900781a19980fa018dd89ba7b3
Reviewed-on: https://go-review.googlesource.com/c/go/+/479796
Reviewed-by: Than McIntosh <thanm@google.com>
Run-TryBot: Paul Murphy <murp@ibm.com>
Reviewed-by: David Chase <drchase@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com>
2023-04-12 20:52:19 +00:00
Jonathan Amsterdam
38531c6290 log/slog: catch panics in LogValue
If a LogValue call panics, recover and return an error instead.

The error contains some stack information to make it easier to
find the problem. A number of people complained that panics
in fmt.Formatter.Format functions are hard to debug because
there is no context.

This is an example of the error text:

    LogValue panicked
    called from log/slog.panickingLogValue.LogValue (/usr/local/google/home/jba/repos/go/src/log/slog/value_test.go:221)
    called from log/slog.Value.resolve (/usr/local/google/home/jba/repos/go/src/log/slog/value.go:465)
    called from log/slog.Value.Resolve (/usr/local/google/home/jba/repos/go/src/log/slog/value.go:446)
    called from log/slog.TestLogValue (/usr/local/google/home/jba/repos/go/src/log/slog/value_test.go:192)
    called from testing.tRunner (/usr/local/google/home/jba/repos/go/src/testing/testing.go:1595)
    (rest of stack elided)

Fixes #59141.

Change-Id: I62e6ff6968d1aa34873e955c2d606d25418a673b
Reviewed-on: https://go-review.googlesource.com/c/go/+/484097
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
Run-TryBot: Jonathan Amsterdam <jba@google.com>
2023-04-12 20:35:18 +00:00
Jonathan Amsterdam
f3e6f0f296 log/slog: function argument to Record.Attrs returns bool
Record.Attrs stops as soon as its argument function returns false.

Fixes #59060.

Change-Id: I578d64635e0e52b0fcdbc57f6d5a27a6efac8c70
Reviewed-on: https://go-review.googlesource.com/c/go/+/484096
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
Run-TryBot: Jonathan Amsterdam <jba@google.com>
2023-04-12 20:33:37 +00:00
Jonathan Amsterdam
d528f72d4c log/slog: require entire Attr to be empty to elide
Specify that Handlers should ignore zero-valued Attrs.

Implement that policy in the built-in handlers.

Fixes #59282.

Change-Id: I4430686b61f49bdac849ee300daaabfac9895849
Reviewed-on: https://go-review.googlesource.com/c/go/+/484095
Run-TryBot: Jonathan Amsterdam <jba@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
2023-04-12 20:33:11 +00:00
limeidan
b3a194aad6 cmd/internal/sys, cmd/dist, misc/cgo/testcshared: enable c-shared feature and test on loong64
Linux kernel on loong64 has no Dup2 syscall support, so we use Dup3 to replace it like arm64 and riscv64.

Updates #53301
Fixes #58784

Change-Id: I4e0be140a71b86f4626ed39d76cf3ac78f842018
Reviewed-on: https://go-review.googlesource.com/c/go/+/425478
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: WANG Xuerui <git@xen0n.name>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
Run-TryBot: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: xiaodong liu <teaofmoli@gmail.com>
Reviewed-by: WANG Xuerui <git@xen0n.name>
2023-04-12 20:06:37 +00:00
Jonathan Hall
313ce55a86 regexp: add Regexp.TextMarshaler/TextUnmarshaler
Fixes #46159

Change-Id: I51dc4e9e8915ab5a73f053690fb2395edbeb1151
Reviewed-on: https://go-review.googlesource.com/c/go/+/479401
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
2023-04-12 20:03:09 +00:00
Nuno Cruces
da2755b472 embed: implement openFile.ReadAt
Implementation copied from testing/fstest/mapfs.go

Fixes #57803

Change-Id: I531682b50ab6663511bac41fce7614ab9197bf38
GitHub-Last-Rev: d9bcc1c0bf
GitHub-Pull-Request: golang/go#59489
Reviewed-on: https://go-review.googlesource.com/c/go/+/483235
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: David Chase <drchase@google.com>
2023-04-12 20:00:50 +00:00
Jonathan Amsterdam
6116a47800 log/slog: don't call SetDefault in examples
Replace the default Logger in some examples with a locally constructed
Logger.

Calling SetDefault changes global state that could affect other tests.
Although we could use a defer to restore the state, that clutters
the example and would not work if tests were run concurrently.

Change-Id: Ib2595c57f8e6c3e0b39b982f682ba287c2ae249d
Reviewed-on: https://go-review.googlesource.com/c/go/+/482475
Run-TryBot: Jonathan Amsterdam <jba@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
2023-04-12 19:35:47 +00:00
Junwei Zuo
89567a35c1 cmd/compile: fix ir.StaticValue for ORANGE
Range statement will mutate the key and value, so we should treat them as reassigned.

Fixes #59572

Change-Id: I9c6b67d938760a0c6a1d9739f2737c67af4a3a10
Reviewed-on: https://go-review.googlesource.com/c/go/+/483855
Run-TryBot: Wayne Zuo <wdvxdr@golangcn.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Auto-Submit: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
2023-04-12 19:28:47 +00:00
Jonathan Amsterdam
134af2e3db log,log/slog: get correct source line when slog calls log
Before slog.SetDefault is called the first time, calls to slog's
default Logger invoke log's default Logger.

Originally, this was done by calling log.Output. This caused source
line information to be wrong sometimes, because log.Output requires a
call depth and the code invoking it could not know how many calls were
between it and the original logging call (slog.Info, etc.). The line
information would be right if the default handler was called directly,
but wrong if it was wrapped by another handler. The handler has the pc
of the logging call, but it couldn't give that pc to the log package.

This CL fixes the problem by adding a function in the log package
that uses the pc instead of a call depth, and making that function
available to slog.

The simplest way to add pc functionality to the log package is to add
a pc argument to Logger.output, which uses it only if it's not zero.

To make that function visible to slog without exporting it, we store
the function in a variable that lives in the new log/internal package.

Change-Id: I0bb6daebb4abc518a7ccc4e6d2f3c1093b1d0fe4
Reviewed-on: https://go-review.googlesource.com/c/go/+/482239
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
Reviewed-by: Joseph Tsai <joetsai@digital-static.net>
Run-TryBot: Jonathan Amsterdam <jba@google.com>
2023-04-12 18:33:50 +00:00
Michael Pratt
ebc13fb0b8 log/syslog: report hostname mismatch error details
The existing error log in check doesn't report the got/want hostname
even though that can be the cause of the error. Log those as well.

While we're here, also report os.Hostname() errors.

For #59568.

Change-Id: Ia277f85eddc541f2e78d719bc731db24e4513754
Reviewed-on: https://go-review.googlesource.com/c/go/+/483915
Run-TryBot: Michael Pratt <mpratt@google.com>
Auto-Submit: Michael Pratt <mpratt@google.com>
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Reviewed-by: Bryan Mills <bcmills@google.com>
2023-04-12 16:09:24 +00:00
Bryan C. Mills
d91d832530 net/http: avoid leaking writer goroutines in tests
In TestTransportPrefersResponseOverWriteError and TestMaxBytesHandler,
the server may respond to an incoming request without ever reading the
request body. The client's Do method will return as soon as the
server's response headers are read, but the Transport will remain
active until it notices that the server has closed the connection,
which may be arbitrarily later.

When the server has closed the connection, it will call the Close
method on the request body (if it has such a method). So we can use
that method to find out when the Transport is close enough to done for
the test to complete without interfering too much with other tests.

For #57612.
For #59526.

Change-Id: Iddc7a3b7b09429113ad76ccc1c090ebc9e1835a1
Reviewed-on: https://go-review.googlesource.com/c/go/+/483895
Run-TryBot: Bryan Mills <bcmills@google.com>
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2023-04-12 16:04:39 +00:00
Bryan C. Mills
b7428b7c6d net/http: only report the first leak of each test run
We don't have a way to terminate the leaked goroutines, and we can't
wait forever for them to exit (or else we would risk timing out the
test and losing the log line describing what exactly leaked).
So we have reason to believe that they will remain leaked while we run
the next test, and we don't want the goroutines from the first leak to
generate a spurious error when the second test completes.

This also removes a racy Parallel call I added in CL 476036, which was
flagged by the race detector in the duplicate-suppression check.
(I hadn't considered the potential interaction with the leak checker.)

For #59526.
Updates #56421.

Change-Id: Ib1f759f102fb41ece114401680cd728343e58545
Reviewed-on: https://go-review.googlesource.com/c/go/+/483896
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2023-04-12 15:45:20 +00:00
wangjianwen
4b154e55ba cmd/dist: check for errors from filepath.Glob
Change-Id: Ib5bcd3d1e9618d65b4d4b0895d0e40dbd76646c6
GitHub-Last-Rev: 174084ca6c
GitHub-Pull-Request: golang/go#59516
Reviewed-on: https://go-review.googlesource.com/c/go/+/483435
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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2023-04-12 14:08:29 +00:00