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56579 Commits

Author SHA1 Message Date
David Chase
6cf7602b71 reflect: replacing almost all use of *rtype with *abi.Type
Change-Id: I3601525b10237d828c449c62a3447f66cb6f025e
Reviewed-on: https://go-review.googlesource.com/c/go/+/487557
Run-TryBot: David Chase <drchase@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2023-05-11 01:43:04 +00:00
David Chase
b768a1fbb5 reflect: move funcType to abi/type.go
Change-Id: I381229ba67a39487cdcc60da1c73d33b0a7d494a
Reviewed-on: https://go-review.googlesource.com/c/go/+/487556
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: David Chase <drchase@google.com>
2023-05-10 22:56:31 +00:00
David Chase
3d80d57c31 reflect: prepare fieldnames for moving to abi/type.go
Change-Id: Ia8e88029d29a1210dc7a321578e61336e235f35a
Reviewed-on: https://go-review.googlesource.com/c/go/+/487555
Reviewed-by: Keith Randall <khr@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: David Chase <drchase@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
2023-05-10 22:55:30 +00:00
David Chase
5deeca38c2 internal/abi,reflectlite,reflect,runtime: common up chan type
Change-Id: I085b61c544b85d70fabb1c0d9fe91207826dd21a
Reviewed-on: https://go-review.googlesource.com/c/go/+/484858
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Run-TryBot: David Chase <drchase@google.com>
Reviewed-by: Keith Randall <khr@google.com>
2023-05-10 22:45:24 +00:00
David Chase
acba24ff8c reflect: move more types, constants, functions into internal/abi
Change-Id: Ib9cd15576896225e7c5e6fda11f1a77f6993a91a
Reviewed-on: https://go-review.googlesource.com/c/go/+/484857
Run-TryBot: David Chase <drchase@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
2023-05-10 22:43:51 +00:00
David Chase
639957eb66 internal/reflectlite, runtime: move more constants and types into internal/abi
Change-Id: If5da1057ead34eb3e4c7f42bbe6ad3d350b97725
Reviewed-on: https://go-review.googlesource.com/c/go/+/484856
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Run-TryBot: David Chase <drchase@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2023-05-10 22:43:30 +00:00
David Chase
a851511947 internal/abi: common up ArrayType
This refactoring is more problematic because the client
package wrap abi.Type, thus the self-referential fields
within ArrayType need to be downcast to the client wrappers
in several places.  It's not clear to me this is worthwhile;
this CL is for additional comment, before I attempt similar
changes for other self-referential types.

Change-Id: I41e517e6d851b32560c41676b91b76d7eb17c951
Reviewed-on: https://go-review.googlesource.com/c/go/+/466236
Run-TryBot: David Chase <drchase@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
2023-05-10 21:44:37 +00:00
David Chase
3f9521b2f0 internal/abi: common up some offset/size functions
Change-Id: I92eeed20af35c7dec309457a80b8fd44eb70b57f
Reviewed-on: https://go-review.googlesource.com/c/go/+/467876
Reviewed-by: Keith Randall <khr@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: David Chase <drchase@google.com>
Reviewed-by: Keith Randall <khr@google.com>
2023-05-10 21:44:05 +00:00
David Chase
8e8f4be3f4 cmd/link: clean up per-binary slice creation in ld
A code cleanup opportunity noticed while trying to make slices
be aligned.

Change-Id: I34a807b4cf67d9b4a136c83714a34ffe71dcb166
Reviewed-on: https://go-review.googlesource.com/c/go/+/462757
Run-TryBot: David Chase <drchase@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
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2023-05-10 21:43:25 +00:00
David Chase
d9a61be73f internal/abi: common up Method, Imethod, UncommonType types
was two commits, the first contained a lot of intermediate work,
better this way.

Change-Id: I7c5b79ef78b21a85828c8aaf9baeae86bb144db7
Reviewed-on: https://go-review.googlesource.com/c/go/+/463118
Reviewed-by: Keith Randall <khr@golang.org>
Run-TryBot: David Chase <drchase@google.com>
Reviewed-by: Keith Randall <khr@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2023-05-10 21:41:14 +00:00
David Chase
623ebad685 internal/godebug: make test godebug calls not vary
I think there may be an issue in bisect search with
change set elements not actually being independent,
to be explored later.  For now, modify the test to
remove that property.

Change-Id: I4b171bc024795d950cf4663374ad1dfc4e2952fc
Reviewed-on: https://go-review.googlesource.com/c/go/+/494036
Run-TryBot: David Chase <drchase@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
2023-05-10 20:40:05 +00:00
Tobias Klauser
200a01ff55 html: convert fuzz test to native Go fuzzing
Convert the existing gofuzz based fuzz test to a testing.F based fuzz
test.

Change-Id: Ieae69ba7fb17bd54d95c7bb2f4ed04c323c9f15f
Reviewed-on: https://go-review.googlesource.com/c/go/+/494195
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
2023-05-10 20:35:20 +00:00
Russ Cox
1099644f52 cmd/compile: add ability to print extra information in bisect output
Change-Id: I619c21ab9754f67b69215cfed238a3e489c7fbcf
Reviewed-on: https://go-review.googlesource.com/c/go/+/493955
Reviewed-by: David Chase <drchase@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
2023-05-10 20:31:24 +00:00
Ian Lance Taylor
3d33532d1c net/http: let ErrNotSupported match errors.ErrUnsupported
For #41198

Change-Id: Ibb030e94618a1f594cfd98ddea214ad7a88d2e73
Reviewed-on: https://go-review.googlesource.com/c/go/+/494122
Auto-Submit: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Damien Neil <dneil@google.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
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2023-05-10 20:13:04 +00:00
Robert Griesemer
945a2b17f3 go/types, types2: move xlist next to targs in Checker.arguments signature
targs and xlist belong together (xlist contains the type expressions for
each of the type arguments).

Also, in builtins.go, rename xlist to alist2 to avoid some confusion.

Preparation for adding more parameters to the Checker.arguments signature.

Change-Id: I960501cfd2b88410ec0d581a6520a4e80fcdc56a
Reviewed-on: https://go-review.googlesource.com/c/go/+/494121
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>
2023-05-10 16:34:03 +00:00
Stefan
95c4f320d5 cmd/compile: add De Morgan's rewrite rule
Adds rules that rewrites statements such as ~P&~Q as ~(P|Q) and ~P|~Q as ~(P&Q), removing an extraneous instruction.

Change-Id: Icedb97df741680ddf9799df79df78657173aa500
GitHub-Last-Rev: f22e2350c9
GitHub-Pull-Request: golang/go#60018
Reviewed-on: https://go-review.googlesource.com/c/go/+/493175
Reviewed-by: Keith Randall <khr@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Stefan M <st3f4nm4d4@gmail.com>
Reviewed-by: Keith Randall <khr@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2023-05-10 16:32:25 +00:00
Robert Griesemer
f30cd52051 go/types, types2: control type inference in Checker.funcInst via infer argument
If the infer argument is true, funcInst behaves as before.
If infer is false and there are not enough type arguments,
rather then inferring the missing arguments and instantiating
the function, funcInst returns the found type arguments.

This permits the use of funcInst (and all the checks it does)
to collect the type arguments for partially instantiated
generic functions used as arguments to other functions.

For #59338.

Change-Id: I049034dfde52bd7ff4ae72964ff1708e154e5042
Reviewed-on: https://go-review.googlesource.com/c/go/+/494118
Reviewed-by: Robert Griesemer <gri@google.com>
Run-TryBot: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
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Reviewed-by: Robert Findley <rfindley@google.com>
2023-05-10 15:42:07 +00:00
Shogo Hida
93d9035c9e cmd/go/internal: update documentation of go test and go generate
Fixes #57050

Change-Id: I46cac667ff78ac171c878f4366f8f01f58f1d27d
GitHub-Last-Rev: 697c255ece
GitHub-Pull-Request: golang/go#57814
Reviewed-on: https://go-review.googlesource.com/c/go/+/461683
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
2023-05-10 15:11:42 +00:00
Bryan C. Mills
46847c639b cmd/go/internal/modload: skip reading go.mod files for imports in 'go mod tidy' of modules before 'go 1.21'
This eliminate a network access in 'go mod tidy' of an already-tidy
module, which would otherwise be needed to fetch go.mod checksums for
the test dependencies whose go.mod checksums were omitted in Go
releases between Go 1.17 and 1.20 due to bug #56222.

For modules between 'go 1.17' and 'go 1.20' we intentionally preserve
the old 'go mod tidy' output (omitting go.sum entries for the go.mod
files of test dependencies of external packages). We should also avoid
performing extra sumdb lookups for checksums that would be discarded
anyway.

Updates #56222.

Change-Id: I7f0f1c8e902db0e3414c819621c4b99052f503f0
Reviewed-on: https://go-review.googlesource.com/c/go/+/492741
Auto-Submit: Bryan Mills <bcmills@google.com>
Run-TryBot: Bryan Mills <bcmills@google.com>
Reviewed-by: Carlos Amedee <carlos@golang.org>
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2023-05-10 14:36:26 +00:00
Meng Zhuo
8e8303e1d0 cmd/internal/obj/riscv: regenerate instruction encoding table
This CL updates riscv instructions by
https://github.com/riscv/riscv-opcodes

which adds instruction:
	APAUSE

And removes the following unused instructions:
	AFENCEI
	AFMVQX
	AFMVXQ
	AHFENCEGVMA
	AHFENCEVVMA
	ASLLIRV32
	ASRAIRV32
	ASRLIRV32
	AURET

Change-Id: I314570c643af3e6bbc9d2cd471b6b39985bcbdff
Reviewed-on: https://go-review.googlesource.com/c/go/+/409415
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Benny Siegert <bsiegert@gmail.com>
Reviewed-by: Joel Sing <joel@sing.id.au>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: M Zhuo <mzh@golangcn.org>
2023-05-10 14:30:10 +00:00
Robert Griesemer
d9dce0cd26 go/types, types2: explicitly look for nil type arguments in infer
Don't assume we have all type arguments if the number of type arguments
matches the number of type parameters. Instead, look explicitly for nil
type arguments in the provided targs.

Preparation for type inference with type arguments provided for type
parameters of generic function arguments passed to other functions.

For #59338.

Change-Id: I00918cd5ed06ae3277b4e41a3641063e0f53fef0
Reviewed-on: https://go-review.googlesource.com/c/go/+/494115
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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2023-05-10 13:59:32 +00:00
IvoGoman
607a045888 encoding/csv: update doc comment of Read method
This updates the doc comment to reflect the behavior of the method.
On error the method returns a partial result.

Fixes #59991

Change-Id: I71e9dfa37e0488c85abd3eeede2a1a34cb74239b
GitHub-Last-Rev: 389488e536
GitHub-Pull-Request: golang/go#60084
Reviewed-on: https://go-review.googlesource.com/c/go/+/494055
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Benny Siegert <bsiegert@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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2023-05-10 13:00:20 +00:00
cui fliter
57e3189821 all: fix a lot of comments
Fix comments, including duplicate is, wrong phrases and articles, misspellings, etc.

Change-Id: I8bfea53b9b275e649757cc4bee6a8a026ed9c7a4
Reviewed-on: https://go-review.googlesource.com/c/go/+/493035
Reviewed-by: Benny Siegert <bsiegert@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: shuang cui <imcusg@gmail.com>
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Run-TryBot: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
2023-05-10 12:59:20 +00:00
Jonathan Amsterdam
dc0179bfa8 log/slog: test built-in handlers with slogtest
Test the built-in handlers using the testing/slogtest package.

Change-Id: I6464b6730293461c38b84fb2bf33cdd09173dd6e
Reviewed-on: https://go-review.googlesource.com/c/go/+/488255
Run-TryBot: Jonathan Amsterdam <jba@google.com>
Reviewed-by: Alan Donovan <adonovan@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2023-05-10 12:50:22 +00:00
Jonathan Amsterdam
a3efb96aaf log/slog: add json struct tags to Source
Add tags to the fields of Source that lower-cases their names for JSON.
The implementation still treats Source specially for performance, but
now the result would be identical if it did not.

Change-Id: I5fd2e500f1a301db62af87be8b877ecd954a26ec
Reviewed-on: https://go-review.googlesource.com/c/go/+/494035
Run-TryBot: Jonathan Amsterdam <jba@google.com>
Reviewed-by: Alan Donovan <adonovan@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2023-05-10 11:51:03 +00:00
cui fliter
2ca4104f05 cmd: use slices.Equal to simplify code
#57433 added slices.Equal, using it can reduce the amount of code

Change-Id: I70d14b6c4c24da641a34ed36c900d9291033f526
Reviewed-on: https://go-review.googlesource.com/c/go/+/492576
Reviewed-by: Than McIntosh <thanm@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Run-TryBot: shuang cui <imcusg@gmail.com>
2023-05-10 10:18:37 +00:00
Keith Randall
5d76600cc0 runtime: fix misaligned SP for libfuzzer entry
libfuzzer is written in C and so requires by the C abi that SP be
aligned correctly mod 16. Normally CALLs need to have SP aligned to 0
mod 16, but because we're simulating a CALL (which pushes a return
address) with a JMP (which doesn't), we need to align to 8 mod 16
before JMPing.

This is not causing any current problems that I know of. All the
functions called from this callsite that I checked don't rely on
correct alignment.  So this CL is just futureproofing.

Update #49075

Change-Id: I13fcbe9aaf2853056a6d44dc3aa64b7db689e144
Reviewed-on: https://go-review.googlesource.com/c/go/+/494117
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
2023-05-10 04:57:07 +00:00
qmuntal
aa4d5e739f syscall,internal/poll: move pipe check from syscall.Seek to callers
On Windows, syscall.Seek is a thin wrapper over SetFilePointerEx [1],
which does not work on pipes, although it doesn't return an error on
that case. To avoid this undefined behavior, Seek defensively
calls GetFileType and errors if the type is FILE_TYPE_PIPE.

The problem with this approach is that Seek is a low level
foundational function that can be called many times for the same file,
and the additional cgo call (GetFileType) will artificially slow
down seek operations. I've seen GetFileType to account for 10% of cpu
time in seek-intensive workloads.

A better approach, implemented in this CL, would be to move the check
one level up, where many times the file type is already known so the
GetFileType is unnecessary.

The drawback is that syscall.Seek has had this behavior since pipes
where first introduced to Windows in
https://codereview.appspot.com/1715046 and someone could be relying on
it. On the other hand, this behavior is not documented, so we couldn't
be breaking any contract.

[1] https://learn.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-setfilepointerex

Change-Id: I7602182f9d08632e22a8a1635bc8ad9ad35a5056
Reviewed-on: https://go-review.googlesource.com/c/go/+/493626
Run-TryBot: Quim Muntal <quimmuntal@gmail.com>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
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Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2023-05-09 20:48:02 +00:00
David Chase
841e99e283 internal/bisect: adjust stack PCs relative to Callers[2]
This is necessary to make hashes be consistent across runs,
otherwise ASLR messes up search.

Change-Id: Icf668dfe4c2008709f7767397b6700d0d5439287
Reviewed-on: https://go-review.googlesource.com/c/go/+/493857
Reviewed-by: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: David Chase <drchase@google.com>
2023-05-09 19:55:24 +00:00
qmuntal
fffddce55c cmd/go: fix cgo prefix mapping for non-vendored modules
Regression introduced in CL 478455.

Change-Id: I8083a0accb047188dde1a3d408df2aafaf4a5356
Reviewed-on: https://go-review.googlesource.com/c/go/+/493835
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Quim Muntal <quimmuntal@gmail.com>
2023-05-09 18:03:56 +00:00
Michael Pratt
734b26d4b9 runtime: exclude extra M's from debug.SetMaxThreads
The purpose of the debug.SetMaxThreads limit is to avoid accidental fork
bomb from something like millions of goroutines blocking on system
calls, causing the runtime to create millions of threads.

By definition we don't create threads created in C, so this isn't a
problem for those threads, and we can exclude them from the limit. If C
wants to create tens of thousands of threads, who are we to say no?

Fixes #60004.

Change-Id: I62b875890718b406abca42a9a4078391e25aa21b
Reviewed-on: https://go-review.googlesource.com/c/go/+/492743
Auto-Submit: Michael Pratt <mpratt@google.com>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Michael Pratt <mpratt@google.com>
2023-05-09 17:55:20 +00:00
Johan Brandhorst-Satzkorn
5751939d11 misc/wasm: add wasmer to wasip1 script
The wasmer runtime will be used to test our wasip1
implementation against the WASI runtime from wasmer.io.

For #59907

Change-Id: Ie7e48c39e03075815ddca46d996b6ec87009b12a
Reviewed-on: https://go-review.googlesource.com/c/go/+/493775
TryBot-Result: Gopher Robot <gobot@golang.org>
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Run-TryBot: Johan Brandhorst-Satzkorn <johan.brandhorst@gmail.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
2023-05-09 16:19:36 +00:00
Russ Cox
134c9b2b17 cmd/compile: remove FS debug hash form
The FS form was only necessary for reliable hashes in tests,
and for that we can use -trimpath.

Another potential concern would be temporary work directory
names leaking into the names of files generated by cgo and the
like, but we already make sure to avoid those to ensure
reproducible builds: the compiler never sees those paths.
So the FS form is not necessary for that either.

Change-Id: Idae2c6acb22ab64dfb33bb053244d23fbe153830
Reviewed-on: https://go-review.googlesource.com/c/go/+/493737
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
2023-05-09 16:07:13 +00:00
Russ Cox
da5a3146ec cmd/compile: use more of internal/bisect in HashDebug
Using more of internal/bisect gives us more that will be deleted
from base/hashdebug.go when we have updated the tools that
need the old protocol. It is also cheaper: there is no allocation to
make a decision about whether to enable, and no locking unless
printing is needed.

Change-Id: I43ec398461205a1a9e988512a134ed6b3a3b1587
Reviewed-on: https://go-review.googlesource.com/c/go/+/493736
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
2023-05-09 16:07:06 +00:00
Russ Cox
ffc4cc05f5 cmd/compile: standardize on outer-to-inner for pos lists
The call sites that cared all reversed inner-to-outer to outer-to-inner already.
The ones that didn't care left it alone. No one explicitly wanted inner-to-outer.
Also change to a callback-based interface, so that call sites aren't required
to accumulate the results in a slice (the main reason for that before was to
reverse the slice!).

There were three places where these lists were printed:

1. -d=ssa/genssa/dump, explicitly reversing to outer-to-inner
2. node dumps like -W, leaving the default inner-to-outer
3. file positions for HashDebugs, explicitly reversing to outer-to-inner

It makes no sense that (1) and (2) would differ. The reason they do is that
the code for (2) was too lazy to bother to fix it to be the right way.

Consider this program:

	package p

	func f() {
		g()
	}

	func g() {
		println()
	}

Both before and after this change, the ssa dump for f looks like:

	# x.go:3
	       	00000 (3) 	TEXT	<unlinkable>.f(SB), ABIInternal
	       	00001 (3) 	FUNCDATA	$0, gclocals·g2BeySu+wFnoycgXfElmcg==(SB)
	       	00002 (3) 	FUNCDATA	$1, gclocals·g2BeySu+wFnoycgXfElmcg==(SB)
	 v4    	00003 (-4) 	XCHGL	AX, AX
	# x.go:4
	# x.go:8
	 v5    	00004 (+8) 	PCDATA	$1, $0
	 v5    	00005 (+8) 	CALL	runtime.printlock(SB)
	 v7    	00006 (-8) 	CALL	runtime.printnl(SB)
	 v9    	00007 (-8) 	CALL	runtime.printunlock(SB)
	# x.go:5
	 b2    	00008 (5) 	RET
	       	00009 (?) 	END

Note # x.go:4 (f) then # x.go:8 (g, called from f) between v4 and v5.

The -W node dumps used the opposite order:

	before walk f
	.   AS2 Def tc(1) # x.go:4:3
	.   INLMARK # +x.go:4:3
	.   PRINTN tc(1) # x.go:8:9,x.go:4:3
	.   LABEL p..i0 # x.go:4:3

Now they match the ssa dump order, and they use spaces as separators,
to avoid potential problems with commas in some editors.

	before walk f
	.   AS2 Def tc(1) # x.go:4:3
	.   INLMARK # +x.go:4:3
	.   PRINTN tc(1) # x.go:4:3 x.go:8:9
	.   LABEL p..i0 # x.go:4:3

I'm unaware of any argument for the old order other than it was easier
to compute without allocation. The new code uses recursion to reverse
the order without allocation.

Now that the callers get the results outer-to-inner, most don't need
any slices at all.

This change is particularly important for HashDebug, which had been
using a locked temporary slice to walk the inline stack without allocation.
Now the temporary slice is gone.

Change-Id: I5cb6d76b2f950db67b248acc928e47a0460569f9
Reviewed-on: https://go-review.googlesource.com/c/go/+/493735
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
Run-TryBot: Russ Cox <rsc@golang.org>
2023-05-09 16:07:01 +00:00
Russ Cox
81a31f5dd5 internal/godebug: add bisect support
CL 491875 introduces a new bisect command, which we plan to
document for use by end users to debug semantic changes in
the compiler and in GODEBUGs.

This CL adds bisect support to GODEBUGs, at least the ones
used via internal/godebug. Support for runtime-internal
GODEBUGs like panicnil will take a bit more work in followup CLs.

The new API in internal/bisect to support stack-based bisecting
should be easily reusable in non-GODEBUG settings as well,
once we finalize and export the API.

Change-Id: I6cf779c775329aceb3f3b2b2b2f221ce8a67deee
Reviewed-on: https://go-review.googlesource.com/c/go/+/491975
Reviewed-by: David Chase <drchase@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
2023-05-09 15:20:20 +00:00
Guoqi Chen
93897960cb runtime: calculate nanoseconds in usleep on linux/loong64
Change-Id: Ia4cfdea3df8834e6260527ce8e6e894a0547070f
Reviewed-on: https://go-review.googlesource.com/c/go/+/425299
Reviewed-by: xiaodong liu <teaofmoli@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Run-TryBot: WANG Xuerui <git@xen0n.name>
Reviewed-by: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Meidan Li <limeidan@loongson.cn>
2023-05-09 14:42:43 +00:00
Jabar Asadi
8af1067698 net: correct Dialer.ControlContext documentation
Change-Id: I4ec5883fc8713e0f711bb6beff45f426dae8f9f4
GitHub-Last-Rev: 9ea0c1505c
GitHub-Pull-Request: golang/go#59819
Reviewed-on: https://go-review.googlesource.com/c/go/+/488315
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>
2023-05-09 14:42:20 +00:00
Paul E. Murphy
f3034bed72 cmd/link/internal/ppc64: fix export of R_DWARFSECREF to ELF on ppc64
Today, external linking is not supported on any ppc64 ELF target, but
soon openbsd will be enabled with external linking support.

This relocation does not require additional endian specific fixups
like most other PPC64 Go relocation types.

I discovered this during an experiment to support external linking
on ppc64/linux.

Change-Id: I0b12b6172c7ba08df1c8cf024b4aa5e7ee76d0c4
Reviewed-on: https://go-review.googlesource.com/c/go/+/492618
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Paul Murphy <murp@ibm.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
2023-05-09 13:46:03 +00:00
Bryan C. Mills
d8ab19b2f2 net/http: regenerate h2_bundle.go
The x/net version was updated in CL 493596; cmd/internal/moddeps
catches the skew, but only runs on the -longtest builders (because it
requires network access for the bundle tool and x/net dependency).

Change-Id: I48891d51aab23b2ca6f4484215438c60bd8c8c21
Reviewed-on: https://go-review.googlesource.com/c/go/+/493875
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Bryan Mills <bcmills@google.com>
Auto-Submit: Bryan Mills <bcmills@google.com>
Reviewed-by: Alan Donovan <adonovan@google.com>
2023-05-09 13:22:59 +00:00
David Chase
59d19ba797 cmd/compile/loopvar: adjust logging messages
Michael Stapelberg thought the former messages had
upside potential, Russ and I agreed.

Also slightly tweaked the json logging, not sure if
anyone will use it but it should at least be okay.

Change-Id: Iaab75114dd5f5d8f011fab22d32b57abc0272815
Reviewed-on: https://go-review.googlesource.com/c/go/+/493135
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: David Chase <drchase@google.com>
Auto-Submit: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-by: Michael Stapelberg <stapelberg@google.com>
2023-05-09 12:49:49 +00:00
Russ Cox
8d5065ce6e cmd: vendor golang.org/x/tools/cmd/bisect
Vendoring for use with the internal/godebug test
and eventually the cmd/compile test as well.

Change-Id: I3f7151949cff584705cb32ba39bf5de5cd45c3f2
Reviewed-on: https://go-review.googlesource.com/c/go/+/493597
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
2023-05-09 01:28:10 +00:00
Russ Cox
e5e61a03d9 cmd: go get golang.org/x/tools@8f7fb01dd429 and revendor
go get golang.org/x/tools@8f7fb01dd429 # CL 493619
go mod tidy
go mod vendor

The goal is to set up for importing the bisect command,
for use in tests, in a follow-up CL.

This also updates x/sys and x/net, including in std,
because x/tools now depends on newer versions of those.

Change-Id: I24c283cc165464d9c873ba7a9a4e75a9d02919b2
Reviewed-on: https://go-review.googlesource.com/c/go/+/493596
Reviewed-by: Alan Donovan <adonovan@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
2023-05-09 01:28:01 +00:00
Robert Griesemer
3c3b1d39be go/types, types2: infer minimum default type for untyped arguments
This implements the proposal #58671.
Must be explicitly enabled and requires proposal approval.

For #58671.

Change-Id: I150e78f4f3282d6b7cf9d90feeb5f1c5a36d8c38
Reviewed-on: https://go-review.googlesource.com/c/go/+/492835
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Robert Griesemer <gri@google.com>
2023-05-08 22:22:41 +00:00
Robert Griesemer
2532352ffb go/types, types2: move functions for untyped constants into const.go
No changes to the moved functions.
Generate const.go for go/types.

Change-Id: I5ac412cecd9f618676a01138aed36428bbce3311
Reviewed-on: https://go-review.googlesource.com/c/go/+/493715
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>
TryBot-Result: Gopher Robot <gobot@golang.org>
2023-05-08 22:12:00 +00:00
Robert Griesemer
f3247f6110 cmd/compile/internal/types2: pass pos argument to Checker.overflow
This matches the go/types version of Checker.overflow.
Preparation for generating this function (and others)
for go/types.

Change-Id: I84117203247011bd2e96c9cf53fd5a443e528bbf
Reviewed-on: https://go-review.googlesource.com/c/go/+/493558
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Griesemer <gri@google.com>
2023-05-08 22:07:01 +00:00
Robert Griesemer
0a9875c5c8 go/types, types2: remove genericMultiExpr (inline it in genericExprList)
Also, remove named return values for exprList, genericExprList.

Change-Id: I099abff4572530dd0c3b39c92d6b9a4662d95c2d
Reviewed-on: https://go-review.googlesource.com/c/go/+/493557
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2023-05-08 21:06:22 +00:00
Russ Cox
91ebed3fd2 all: make safe for new vet analyzer
The unused analyzer handles dot imports now, so a few tests
have picked up vet errors. This CL errors like:

context/x_test.go:524:47: result of context.WithValue call not used

Change-Id: I711a62fd7b50381f8ea45ac526bf0c946a171047
Reviewed-on: https://go-review.googlesource.com/c/go/+/493598
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
2023-05-08 20:18:40 +00:00
Michael Matloob
4576184b43 cmd/go/internal/envcmd: on unix pass script contents directly to sh -c
Instead of writing them to a file and executing that file.

For #59998

Change-Id: I341786926762359f67dccb475295afbbb8ed1054
Reviewed-on: https://go-review.googlesource.com/c/go/+/493555
Run-TryBot: Michael Matloob <matloob@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
2023-05-08 17:34:42 +00:00
qmuntal
dd78bc0564 runtime: remove TestCrashExitCode
TestCrashExitCode was added in CL 491935 to test that the exit code
is honored when using GOTRACEBACK=crash, which is what normally happens
on a stock Windows. The problem is that some applications (not only WER,
as I incorrectly assumed in CL 491935) can hijack a crashing process
and change its exit code.

There is no way to tell if a crashing process using GOTRACEBACK=crash/
wer will have its error code hijacked, so we better don't test this
behavior, which in fact is not documented by the Go runtime.

Change-Id: Ib8247a8a1fe6303c4c7812a1bf2ded5f4e89acb1
Reviewed-on: https://go-review.googlesource.com/c/go/+/493495
Run-TryBot: Quim Muntal <quimmuntal@gmail.com>
Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2023-05-08 16:57:33 +00:00