Robert Griesemer [Wed, 26 May 2021 00:49:32 +0000 (17:49 -0700)]
[dev.typeparams] cmd/compile/internal/types2: replace Sum type with Union type
- We still mostly ignore the tilde information.
- More consistent naming: A Union term is the pair (type, tilde).
Rename Union.terms to Union.types; the Union.types and Union.tilde
slices make up the Union terms.
- Replace Sum.is with Union.underIs: underIs iterates through all
union terms and calls its argument function with the underlying
type of the term (and thus can ignore the tilde information).
This also eliminates the need to call under in the argument
function.
- Added Union.is for situations where we need to consider the tilde
information for each Union term.
Change-Id: I70fcf1813e072651dc0f61d52d5555642ee762fd
Reviewed-on: https://go-review.googlesource.com/c/go/+/323274
Trust: Robert Griesemer <gri@golang.org> Reviewed-by: Robert Findley <rfindley@google.com>
Keith Randall [Fri, 16 Apr 2021 21:06:50 +0000 (14:06 -0700)]
[dev.typeparams] cmd/compile: add dictionary argument to generic functions
When converting from a generic function to a concrete implementation,
add a dictionary argument to the generic function (both an actual
argument at each callsite, and a formal argument of each
implementation).
The dictionary argument comes before all other arguments (including
any receiver).
The dictionary argument is checked for validity, but is otherwise unused.
Subsequent CLs will start using the dictionary for, e.g., converting a
value of generic type to interface{}.
Import/export required adding support for LINKSYMOFFSET, which is used
by the dictionary checking code.
Change-Id: I16a7a8d23c7bd6a897e0da87c69f273be9103bd7
Reviewed-on: https://go-review.googlesource.com/c/go/+/323272
Trust: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Dan Scales <danscales@google.com>
Cherry Mui [Sat, 29 May 2021 01:56:50 +0000 (21:56 -0400)]
[dev.typeparams] runtime: update ABIInternal assembly with register ABI on ARM64
mcall calls a closure (using ABIInternal) with an argument.
Update it to pass the argument in register.
Panic functions tail-call Go panic functions using ABIInternal.
Update them to pass the arguments in registers.
Race functions are called using ABIInternal from compiler-
instrumented code. Update them to receive the arguments in
registers.
Now all.bash passes with GOEXPERIMENT=regabi on ARM64 (at least on
macOS).
Change-Id: I648f6502c7eeb1422330c6c829181f12e08c7d0e
Reviewed-on: https://go-review.googlesource.com/c/go/+/323937
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Michael Knyszek <mknyszek@google.com>
Cherry Mui [Fri, 28 May 2021 00:20:16 +0000 (20:20 -0400)]
[dev.typeparams] reflect: implement register ABI for MakeFunc etc. on ARM64
Implement register ABI for reflect.MakeFunc and method Value Call
on ARM64.
Change-Id: I5487febb9ea764af5ccf5d7c94858ab0acec7cac
Reviewed-on: https://go-review.googlesource.com/c/go/+/323936
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Michael Knyszek <mknyszek@google.com>
Cherry Mui [Thu, 27 May 2021 23:02:27 +0000 (19:02 -0400)]
[dev.typeparams] runtime: implement register ABI for reflectcall on ARM64
Implement register ABI version of reflectcall.
Now runtime tests pass with GOEXPERIMENT=regabiwrappers,regabireflect
on ARM64 (at least on macOS).
Change-Id: I2812cd96bdc13f8dc91c867e3f571921c0cdfc8a
Reviewed-on: https://go-review.googlesource.com/c/go/+/323935
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Michael Knyszek <mknyszek@google.com>
Cherry Mui [Thu, 27 May 2021 22:07:36 +0000 (18:07 -0400)]
[dev.typeparams] runtime: mark assembly functions called directly from compiler ABIInternal
For functions such as gcWriteBarrier and panicIndexXXX, the
compiler generates ABIInternal calls directly. And they must not
use wrappers because it follows a special calling convention or
the caller's PC is used. Mark them as ABIInternal.
Note that even though they are marked as ABIInternal, they don't
actually use the internal ABI, i.e. regabiargs is not honored for
now.
Now all.bash passes with GOEXPERIMENT=regabiwrappers (at least on
macOS).
Change-Id: I87e41964e6dc4efae03e8eb636ae9fa1d99285bb
Reviewed-on: https://go-review.googlesource.com/c/go/+/323934
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Michael Knyszek <mknyszek@google.com>
Zachary Burkett [Sat, 29 May 2021 19:54:10 +0000 (19:54 +0000)]
test: fix error check messages for 2 types2 tests
Many compiler tests fail with -G=3 due to changes in error message format.
This commit fixes two of these tests, to ensure I am on the right track in review.
Updates #46447
Change-Id: I138956d536a1d48ca9198e6ddbfde13865bb5dd5
GitHub-Last-Rev: 0ed904b9fad5e6739fee02ab48c7bc66508d736b
GitHub-Pull-Request: golang/go#46445
Reviewed-on: https://go-review.googlesource.com/c/go/+/323314 Reviewed-by: Matthew Dempsky <mdempsky@google.com> Reviewed-by: Robert Griesemer <gri@golang.org>
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Keith Randall [Tue, 1 Jun 2021 23:57:59 +0000 (16:57 -0700)]
[dev.typeparams] cmd/compile: fix formatting
Looks like CL 322850 didn't have the change to ARM64Ops.go
properly gofmt'ed.
Change-Id: I1a080bc13ea27b897fbb91f18ded754ce440994b
Reviewed-on: https://go-review.googlesource.com/c/go/+/324109
Trust: Keith Randall <khr@golang.org>
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cherry Mui <cherryyz@google.com>
Cherry Mui [Thu, 27 May 2021 20:56:02 +0000 (16:56 -0400)]
[dev.typeparams] internal/buildcfg: allow regabi GOEXPERIMENTs on ARM64
It is not working yet, but allow enabling the experiments so we
can develop.
Change-Id: I957eb05acb4d80b2858ff1f8c16bbfb24e0f6e56
Reviewed-on: https://go-review.googlesource.com/c/go/+/323933
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: David Chase <drchase@google.com>
Cherry Mui [Thu, 27 May 2021 22:22:49 +0000 (18:22 -0400)]
[dev.typeparams] internal/abi: define ARM64 register ABI constants
Change-Id: I9cdf0f2b6c1739f13a859a8e37351f8ecd77804a
Reviewed-on: https://go-review.googlesource.com/c/go/+/323932
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Michael Knyszek <mknyszek@google.com>
Cherry Mui [Thu, 27 May 2021 22:41:12 +0000 (18:41 -0400)]
[dev.typeparams] reflect: call ABI0 spill/unspill functions on AMD64
CL 321950 changed runtime.spillArgs and unspillArgs to ABI0.
References to those functions should have been updated to ABI0,
but this one was missed.
Change-Id: I99238e4a96c945a47bec0981a415037578c73de4
Reviewed-on: https://go-review.googlesource.com/c/go/+/323931
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Michael Knyszek <mknyszek@google.com> Reviewed-by: David Chase <drchase@google.com>
Cherry Mui [Sat, 29 May 2021 02:32:41 +0000 (22:32 -0400)]
[dev.typeparams] cmd/compile: match register-ABI version of memmove call on ARM64
Update the rule to match register-ABI version of the call for
inlining memmove.
Change-Id: Ic6da810e4d7ac391ffb766fcdc943985f0739624
Reviewed-on: https://go-review.googlesource.com/c/go/+/323930
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: David Chase <drchase@google.com>
Cherry Mui [Sat, 29 May 2021 02:23:00 +0000 (22:23 -0400)]
[dev.typeparams] cmd/compile: update ARM64 CALL* ops for register ABI
Now they take variable number of args.
Change-Id: I49c8bce9c3a403947eac03e397ae264a8f4fdd2c
Reviewed-on: https://go-review.googlesource.com/c/go/+/323929
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: David Chase <drchase@google.com>
This CL refactors the code for invoking the types2 checker and for
validating //go:embed directives to be easier to reuse separately.
No functional change.
Change-Id: I706f4ea4a26b1f1d2f4064befcc0777a1067383d
Reviewed-on: https://go-review.googlesource.com/c/go/+/323310
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Dan Scales <danscales@google.com>
Trust: Matthew Dempsky <mdempsky@google.com>
Jay Conrod [Wed, 26 May 2021 19:29:39 +0000 (15:29 -0400)]
cmd/go: make 'go get' save sums for incidentally updated modules
When 'go get' updates a module, it may update another module in the
build list that provides a package in 'all' that wasn't loaded as part
of the 'go get' command. If 'go get' doesn't add a sum for that
module, builds may fail later.
With this change, 'go get' will fetch a sum for the content of an
updated module if we had a sum for the version before the update.
'go get' won't load the complete package graph, so there are still
cases where the build may be broken, like when an updated (but not
loaded) package imports a package from a new module.
Fixes #44129
Change-Id: I62eba3df4137a3e84e2ca8d549c36eec3670f08c
Reviewed-on: https://go-review.googlesource.com/c/go/+/322832
Trust: Jay Conrod <jayconrod@google.com>
Trust: Bryan C. Mills <bcmills@google.com>
Run-TryBot: Jay Conrod <jayconrod@google.com> Reviewed-by: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Matthew Dempsky [Mon, 31 May 2021 01:13:36 +0000 (18:13 -0700)]
[dev.typeparams] cmd/compile: simplify formatting of defined types
The existing code for deciding how to format defined type names is
incredibly convoluted and difficult to follow. In particular, I'm
looking at changing how Vargen works, and I couldn't tell from the
existing code whether my idea was viable.
This CL overhauls the logic to be much simpler with fewer special
cases, while overall behaving the same. A few notable intentional
differences from how the current code works:
1. The old code replaced the 'S' verb for fmtTypeGo and fmtTypeDebug
to 'v', whereas the new code leaves it alone. There's currently no
code that actually uses 'S' with these modes anyway, so it doesn't
seem important to maintain this special case. If future code wants 'v'
formatting, it should just use 'v' instead of 'S'.
2. The old code included Vargen for fmtTypeIDName mode with the 'S'
verb; but again, this functionality isn't actually used. I think it
would make sense for fmtTypeIDName to include Vargen like fmtTypeID
does (Vargen is logically part of the type's identity after all), but
that breaks tests and toolstash -cmp. So for now, this is left as a
TODO to investigate in the future.
3. The old code only added Vargen for fmtTypeID in 'v' mode when
printing types from the local package. But because we don't currently
support exporting function-scoped defined types anyway, this is again
irrelevant. In fact, once we *do* support exporting function-scoped
defined types, we'll need to include Vargen to generate the linker
symbols correctly.
Passes toolstash -cmp.
Change-Id: I4e481276bc4dc8d5b17eebf597b612737f26be5b
Reviewed-on: https://go-review.googlesource.com/c/go/+/323709
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Rob Findley [Sun, 30 May 2021 02:14:12 +0000 (22:14 -0400)]
go/types: don't declare 'comparable' when typeparams are disabled
Fixes #46453
Change-Id: I92b9b1e43ec5182162b2eeeb667f1f548ea373a5
Reviewed-on: https://go-review.googlesource.com/c/go/+/323609
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Robert Griesemer <gri@golang.org>
Rob Findley [Fri, 28 May 2021 15:58:05 +0000 (11:58 -0400)]
go/types: unexport the GoVersion configuration option for Go 1.17
The GoVersion field was added to types.Config as part of the work on
type parameters. Specifically, it was added to be consistent with
cmd/compile/internal/types2, which requires such an option.
This configuration option is useful, but is also non-trivial and did not
go through the proposal process. Unexport it for Go 1.17; we can create
a proposal to export it for Go 1.18.
Fixes #46296
Change-Id: Id82d8a7096887dcfc404c4d6d8da9c761b316609
Reviewed-on: https://go-review.googlesource.com/c/go/+/323430
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Robert Griesemer <gri@golang.org>
Ian Lance Taylor [Sat, 29 May 2021 00:32:15 +0000 (17:32 -0700)]
doc/go1.17: mention time.Layout
For #44513
Change-Id: Id4624e977654f7e8c489508a9dce98c9fab621a6
Reviewed-on: https://go-review.googlesource.com/c/go/+/323490
Trust: Ian Lance Taylor <iant@golang.org> Reviewed-by: Rob Pike <r@golang.org>
Ian Lance Taylor [Fri, 28 May 2021 00:33:01 +0000 (17:33 -0700)]
doc/go1.17: mention testing.[TB].Setenv methods
For #41260
For #44513
Change-Id: I47ac0c751dafeb05abfe66fdf77938774164915f
Reviewed-on: https://go-review.googlesource.com/c/go/+/323353
Trust: Ian Lance Taylor <iant@golang.org> Reviewed-by: roger peppe <rogpeppe@gmail.com>
Ian Lance Taylor [Fri, 28 May 2021 00:30:08 +0000 (17:30 -0700)]
doc/go1.17: mention new Windows SysProcAttr fields
For #44011
For #44513
Change-Id: I512466f2e775e36098eb36ca7ef82333cd9e632a
Reviewed-on: https://go-review.googlesource.com/c/go/+/323352
Trust: Ian Lance Taylor <iant@golang.org> Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Ian Lance Taylor [Fri, 28 May 2021 00:19:12 +0000 (17:19 -0700)]
doc/go1.17: document new go/build/BuildContext.ToolTags field
For #44513
Change-Id: Ib21af742e574fcaa7e38bb437d42dbeed9d01f0b
Reviewed-on: https://go-review.googlesource.com/c/go/+/323350
Trust: Ian Lance Taylor <iant@golang.org> Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Ian Lance Taylor [Thu, 27 May 2021 23:24:49 +0000 (16:24 -0700)]
doc/go1.17: mention new encoding/csv/Reader.FieldPos method
For #44221
For #44513
Change-Id: I2d2d1c55255f4411c11fd51f0f3ae726cbf4d136
Reviewed-on: https://go-review.googlesource.com/c/go/+/323349
Trust: Ian Lance Taylor <iant@golang.org> Reviewed-by: roger peppe <rogpeppe@gmail.com>
Ian Lance Taylor [Thu, 27 May 2021 23:16:37 +0000 (16:16 -0700)]
doc/go1.17: document new debug/elf constant
For #39677
For #44513
Change-Id: I8c4193fd4359b83e6739e7e30a3a42b5f21b0f1a
Reviewed-on: https://go-review.googlesource.com/c/go/+/323275
Trust: Ian Lance Taylor <iant@golang.org> Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Rob Findley [Fri, 28 May 2021 02:27:55 +0000 (22:27 -0400)]
go/ast: remove FuncDecl.IsMethod for Go 1.17
The IsMethod method was added to FuncDecl in the process of working on
support for type parameters, but is now only used in one place. It also
didn't go through the proposal process. Remove it for 1.17.
Also clean up a doc comment that mentioned type parameters.
Fixes #46297
Change-Id: I432bdd626324f613baf059540b7c5436985b2b16
Reviewed-on: https://go-review.googlesource.com/c/go/+/323369
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Robert Griesemer <gri@golang.org>
Rather than re-parsing and re-resolving the import path string, use
the PkgName object provided by types2 to determine what package path
it refers to.
Also, decompose importfile into smaller functions, so that we can
directly pass the already-resolved package path to the importer.
Finally, switch to simply using height as calculated by types2 rather
than redoing the calculations.
Change-Id: I3338f4e68387b2835b2e58d6df65d740d6a648cb
Reviewed-on: https://go-review.googlesource.com/c/go/+/323309
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Dan Scales <danscales@google.com>
Trust: Dan Scales <danscales@google.com>
Trust: Matthew Dempsky <mdempsky@google.com>
Ian Lance Taylor [Thu, 27 May 2021 23:12:12 +0000 (16:12 -0700)]
doc/go1.17: clarify that compress/lzw Reader and Writer types are new
For #26535
For #44513
For #46005
Change-Id: I70d3711ab6451a61b526abb3da8e91243f637656
Reviewed-on: https://go-review.googlesource.com/c/go/+/323273
Trust: Ian Lance Taylor <iant@golang.org> Reviewed-by: Joe Tsai <thebrokentoaster@gmail.com>
This CL refactors mkinlcall by extracting the core InlinedCallExpr
construction code into a new "oldInline" function, and adds a new
"NewInline" hook point that can be overriden with a new inliner
implementation that only needs to worry about the details of
constructing the InlinedCallExpr.
It also moves the delayretvars optimization check into CanInline, so
it's performed just once per inlinable function rather than once for
each inlined call.
Finally, it skips printing the function body about to be inlined (and
updates the couple of regress tests that expected this output). We
already report the inline body as it was saved, and this diagnostic is
only applicable to the current inliner, which clones existing function
body instances. In the unified IR inliner, we'll directly construct
inline bodies from the serialized representation.
Change-Id: Ibdbe617da83c07665dcbda402cc8d4d4431dde2f
Reviewed-on: https://go-review.googlesource.com/c/go/+/323290
Trust: Matthew Dempsky <mdempsky@google.com>
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Dan Scales <danscales@google.com>
Matthew Dempsky [Thu, 27 May 2021 09:42:15 +0000 (02:42 -0700)]
[dev.typeparams] test: trim list of expected -G=3 failures
15 more tests are passing from recent changes. 83 still to go.
Change-Id: I155b3e3db966d604ccec8bf3a7c182421f3d26c4
Reviewed-on: https://go-review.googlesource.com/c/go/+/323211
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Robert Griesemer <gri@golang.org>
Matthew Dempsky [Thu, 27 May 2021 09:50:17 +0000 (02:50 -0700)]
[dev.typeparams] cmd/compile: add and use ir.RawOrigExpr
This CL adds ir.RawOrigExpr, which can be used to represent arbitrary
constant expressions without needing to build and carry around an
entire IR representation of the original expression. It also allows
distinguishing how the constant was originally written by the
user (e.g., "0xff" vs "255").
This CL then also updates irgen to make use of this functionality for
expressions that were constant folded by types2.
Change-Id: I41e04e228e715ae2735c357b75633a2d08ee7021
Reviewed-on: https://go-review.googlesource.com/c/go/+/323210
Trust: Matthew Dempsky <mdempsky@google.com>
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Robert Griesemer <gri@golang.org> Reviewed-by: Dan Scales <danscales@google.com>
Matthew Dempsky [Thu, 27 May 2021 02:52:31 +0000 (19:52 -0700)]
[dev.typeparams] cmd/compile: tweaks to match types2
This CL makes a handful of changes to either bring existing compiler
output consistent with what types2 produces or to make it easier to
reproduce with types2:
1. The position for embedded fields is corrected to the position of
the syntax.Field, rather than the syntax.Type.
2. Methods and embedded types are sorted in export data the same way
that types2 sorts them.
3. Don't write out position information for OLITERALs that don't have
their own position (i.e., references to named constants).
Change-Id: Ic3979215ae9ef280cfbba7b44c236e03fc12a2ef
Reviewed-on: https://go-review.googlesource.com/c/go/+/323209
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Robert Griesemer <gri@golang.org> Reviewed-by: Dan Scales <danscales@google.com>
Trust: Matthew Dempsky <mdempsky@google.com>
Manlio Perillo [Thu, 27 May 2021 08:44:57 +0000 (10:44 +0200)]
net/http: correct Client.Do doc about context cancelation
The documentation of the Client.Do method and Get function incorrectly
stated that, in case of context cancelation, the returned url.Error
Timeout method returns true.
Update the documentation to correctly match the implementation.
See also CL 200798 that, due to an oversight, corrected only the
documentation of the Client.Get method.
Remove a TODO note added in CL 125575 (net/http: document that Client
methods always return *url.Error), since it is no longer applicable
after CL 200798 (net/http: fix and lock-in Client.Do docs on request
cancelation).
Fixes #46402
Change-Id: Ied2ee971ba22b61777762dbb19f16e08686634ca
Reviewed-on: https://go-review.googlesource.com/c/go/+/323089 Reviewed-by: Damien Neil <dneil@google.com>
Trust: Michael Knyszek <mknyszek@google.com>
Damien Neil [Thu, 27 May 2021 01:06:26 +0000 (18:06 -0700)]
doc/go1.17: document reflect changes
For #44513.
Fixes #46019.
Change-Id: Ica84edd5703a4ccf343ff01e10483f8d51d1c79f
Reviewed-on: https://go-review.googlesource.com/c/go/+/323069
Trust: Damien Neil <dneil@google.com>
Run-TryBot: Damien Neil <dneil@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
Jay Conrod [Mon, 24 May 2021 20:47:45 +0000 (16:47 -0400)]
cmd/go: don't let 'go mod download' save sums for inconsistent requirements
'go mod download' calls modload.LoadModFile early to find the main
module path in order to validate arguments. LoadModFile may write
go.mod and go.sum to fix formatting and add a go directive. This calls
keepSums, which, in eager mode, loaded the complete module graph in
order to find out what sums are needed to load the complete module
graph. If go.mod requires a lower version of a module than will be
selected later, keepSums causes the sum for that version's go.mod to
be retained, even though it isn't needed later after a consistent
go.mod is written.
This CL fixes keepSums not to load the graph if it hasn't already been
loaded (whether eager or lazy), addressing comments from CL 318629.
For #45332
Change-Id: I20d4404004e4ad335450fd0fd753e7bc0060f702
Reviewed-on: https://go-review.googlesource.com/c/go/+/322369
Trust: Jay Conrod <jayconrod@google.com>
Run-TryBot: Bryan C. Mills <bcmills@google.com> Reviewed-by: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Roland Shoemaker [Thu, 27 May 2021 17:40:06 +0000 (10:40 -0700)]
net: verify results from Lookup* are valid domain names
For the methods LookupCNAME, LookupSRV, LookupMX, LookupNS, and
LookupAddr check that the returned domain names are in fact valid DNS
names using the existing isDomainName function.
Thanks to Philipp Jeitner and Haya Shulman from Fraunhofer SIT for
reporting this issue.
Fixes #46241
Fixes CVE-2021-33195
Change-Id: I47a4f58c031cb752f732e88bbdae7f819f0af4f3
Reviewed-on: https://go-review.googlesource.com/c/go/+/323131
Trust: Roland Shoemaker <roland@golang.org>
Run-TryBot: Roland Shoemaker <roland@golang.org>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Filippo Valsorda <filippo@golang.org> Reviewed-by: Katie Hockman <katie@golang.org>
Dan Scales [Thu, 27 May 2021 18:18:13 +0000 (11:18 -0700)]
[dev.typeparams] cmd/compile: use old export format if not compiling with generics
Write out export data with the old export format (iexportVersionPosCol)
if not compiling with generics (-G=0, the default value). This helps
ensure we don't break tests involving x/tools/go/gcexportdata (since we
can't modify that tool yet to use the new format).
Change-Id: I5f9bce44ed1e0696fc65fead6bab9e30de88461d
Reviewed-on: https://go-review.googlesource.com/c/go/+/323189 Reviewed-by: Robert Griesemer <gri@golang.org> Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Trust: Robert Griesemer <gri@golang.org>
Than McIntosh [Mon, 10 May 2021 11:31:57 +0000 (07:31 -0400)]
cmd/compile: improve debug locations for partially live in-params
During DWARF debug location generation, as a preamble to the main data
flow analysis, examine the function entry block to look for in-params
arriving in registers that are partially or completely dead, and
insert new OpArg{Int,Float}Reg values for the dead or partially-dead
pieces. In addition, add entries to the f.NamedValues table for
incoming live register-resident params that don't already have
entries. This helps create better/saner DWARF location expressions for
params. Example:
func foo(s string, used int, notused int) int {
return len(s) + used
}
When optimization is complete for this function, the parameter
"notused" is completely dead, meaning that there is no entry for it in
the f.NamedValues table (which then means we don't emit a DWARF
variable location expression for it in the function enty block). In
addition, since only the length field of "s" is used, there is no
DWARF location expression for the other component of "s", leading to
degraded DWARF.
There are still problems/issues with DWARF location generation, but
this does improve things with respect to being able to print the
values of incoming parameters when stopped in the debugger at the
entry point of a function (when optimization is enabled).
Updates #40724.
Change-Id: I5bb5253648942f9fd33b081fe1a5a36208e75785
Reviewed-on: https://go-review.googlesource.com/c/go/+/322631
Trust: Than McIntosh <thanm@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cherry Mui <cherryyz@google.com>
Than McIntosh [Tue, 25 May 2021 14:13:07 +0000 (10:13 -0400)]
cmd/compile: place reg spills after OpArg{Int,Float}Reg ops
Tweak the register allocator to maintain the invariant that
OpArg{Int,Float}Reg values are placed together at the start of the
entry block, before any other non-pseudo-op values. Without this
change, when the register allocator adds spills we can wind up with an
interleaving of OpArg*Reg and stores, which complicates debug location
analysis.
Updates #40724.
Change-Id: Icf30dd814a9e25263ecbea2e48feb840a6e7f2bd
Reviewed-on: https://go-review.googlesource.com/c/go/+/322630
Trust: Than McIntosh <thanm@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cherry Mui <cherryyz@google.com>
Cherry Mui [Thu, 27 May 2021 14:11:42 +0000 (10:11 -0400)]
cmd/link: accept Windows line-ending in TestTrampolineCgo
Apparently C printf emits "\r\n" on Windows. Accept that.
Change-Id: If87ba41435e3147d3892cfc3fe3a105b066ff0aa
Reviewed-on: https://go-review.googlesource.com/c/go/+/322973
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Than McIntosh <thanm@google.com>
Robert Griesemer [Thu, 27 May 2021 04:42:09 +0000 (21:42 -0700)]
[dev.typeparams] cmd/compile/internal/types2: ensure that Named.check is nilled out once it is expanded
This is a port of
- https://golang.org/cl/318849
- https://golang.org/cl/322974
For #45580.
Change-Id: Ie0700ed6c8d472305d5ba7ff97da1ae063152aa3
Reviewed-on: https://go-review.googlesource.com/c/go/+/323030
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Robert Findley <rfindley@google.com>
Rob Findley [Thu, 27 May 2021 16:35:01 +0000 (12:35 -0400)]
go/types: guard against check==nil in newNamed
When importing generic named types, it is possible for Checker.newNamed
to be called during type instantiation when the Checker is nil.
In this case we should be able to safely skip this delayed expansion.
Updates #45580
Change-Id: I75422100464d57eba24642c93e06e8b47d904fc3
Reviewed-on: https://go-review.googlesource.com/c/go/+/322974
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Robert Griesemer <gri@golang.org>
Cherry Mui [Tue, 25 May 2021 23:19:08 +0000 (19:19 -0400)]
[dev.typeparams] cmd/compile: enable register args on ARM64
Now it will be used for functions marked go:registerparams.
test/abi tests are passing with it.
Change-Id: I5af37ae6b79a1064832a42c7ef5f2cc0b5b6a342
Reviewed-on: https://go-review.googlesource.com/c/go/+/322854
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: David Chase <drchase@google.com> Reviewed-by: Than McIntosh <thanm@google.com>
Cherry Mui [Tue, 25 May 2021 22:05:02 +0000 (18:05 -0400)]
[dev.typeparams] cmd/compile: add arg/result register load/spill code on ARM64
Add code that loads results into registers (used in defer return
code path) and spills argument registers (used for partially lived
in-register args).
Move some code from the amd64 package to a common place.
Change-Id: I8d59b68693048fdba86e10769c4ac58de5fcfb64
Reviewed-on: https://go-review.googlesource.com/c/go/+/322851
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: David Chase <drchase@google.com> Reviewed-by: Than McIntosh <thanm@google.com>
Bryan C. Mills [Tue, 25 May 2021 16:21:11 +0000 (12:21 -0400)]
cmd/go,cmd/link: do not check for staleness in most tests
Instead, check that stale packages in the standard library
are not rebuilt when already present in the build cache,
and are not installed implicitly when rebuilt.
We retain the staleness checks for the runtime package in tests
involving '-i', because those are guaranteed to fail anyway if the
package is stale and the "stale" failure message is arguably clearer.
They can be removed if/when we remove the '-i' flag, but the runtime
package is less likely to become stale because it does not have cgo
dependencies.
Matthew Dempsky [Mon, 24 May 2021 11:41:58 +0000 (04:41 -0700)]
[dev.typeparams] cmd/compile: inlining tweaks for toolstash
This CL makes to minor changes motivated by making it easier to make
large-scale changes to the inliner while satisfying toolstash -cmp:
1. When creating inlining variables, make sure to preserve the
AutoTemp flag. This is necessary so that temporary variables
introduced by rewriting f(g()) calls during typecheck stay autotemp
after inlining and are (correctly) omitted from DWARF debugging
information.
2. When sorting variables for stack frame layout, use a stable
sort. This ensures that layout is insensitive to whether deadcode
elimination happens before or after inlining.
Change-Id: I672e752a873c7e16749b9873fd6573607e074309
Reviewed-on: https://go-review.googlesource.com/c/go/+/323011
Trust: Matthew Dempsky <mdempsky@google.com>
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Dan Scales <danscales@google.com>
We already have and use FixVariadicCall to normalize non-dotted calls
to variadic functions elsewhere in the compiler to simplify rewriting
of function calls. This CL updates inl.go to use it too.
A couple tests need to be updated to (correctly) expect diagnostics
about "... argument" instead of a slice literal. This is because
inl.go previously failed to set Implicit on the slice literal node.
Change-Id: I76bd79b95ae1f16e3b26ff7e9e1c468f538fd1f0
Reviewed-on: https://go-review.googlesource.com/c/go/+/323009
Trust: Matthew Dempsky <mdempsky@google.com>
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Dan Scales <danscales@google.com>
The compiler renames anonymous and blank result parameters to ~rN or
~bN, but the current semantics for computing N are rather annoying and
difficult to reproduce cleanly. They also lead to difficult to read
escape analysis results in tests.
This CL changes N to always be calculated as the parameter's index
within the function's result parameter tuple. E.g., if a function has
a single result, it will now always be named "~r0".
The normative change to this CL is fairly simple, but it requires
updating a lot of test expectations.
Change-Id: I58a3c94de00cb822cb94efe52d115531193c993c
Reviewed-on: https://go-review.googlesource.com/c/go/+/323010
Trust: Matthew Dempsky <mdempsky@google.com>
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Dan Scales <danscales@google.com>
Cherry Mui [Tue, 25 May 2021 22:40:28 +0000 (18:40 -0400)]
[dev.typeparams] cmd/compile: add morestack arg spilling code on ARM64
Spill arg registers before calling morestack, and reload after.
Change-Id: I09404def321b8f935d5e8836a46ccae8256d0d55
Reviewed-on: https://go-review.googlesource.com/c/go/+/322853
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: David Chase <drchase@google.com>
Cherry Mui [Tue, 25 May 2021 22:08:36 +0000 (18:08 -0400)]
[dev.typeparams] cmd/internal/obj/arm64: use ABI-compatible registers in function prologue
Avoid using R1, R2, etc. in function prologue, which may carry
live argument values.
Change-Id: I80322b3f7e8fda7aaff622aaa99bc76d02e09727
Reviewed-on: https://go-review.googlesource.com/c/go/+/322852
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Than McIntosh <thanm@google.com> Reviewed-by: David Chase <drchase@google.com>
Ian Lance Taylor [Wed, 26 May 2021 22:17:27 +0000 (15:17 -0700)]
os: deflake TestFdReadRace
The test would hang if the call to Fd set the pipe to be non-blocking
before the Read entered the first read system call. Avoid that problem
by writing data to the pipe to wake up the read.
For #24481
Fixes #44818
Change-Id: I0b798874c7b81e7308a38ebbf657efc4392ffacd
Reviewed-on: https://go-review.googlesource.com/c/go/+/322893
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Damien Neil <dneil@google.com>
They are not really enabled for now. Otherwise the compiler will
start using them for go:registerparams functions and it is not
fully working. Some test will fail.
Now we can compile a simple Add function with registerparams
(with registers enabled).
Change-Id: Ifdfac931052c0196096a1dd8b0687b5fdedb14d5
Reviewed-on: https://go-review.googlesource.com/c/go/+/322850
Trust: Cherry Mui <cherryyz@google.com> Reviewed-by: David Chase <drchase@google.com> Reviewed-by: Than McIntosh <thanm@google.com>
Cherry Mui [Tue, 25 May 2021 23:49:08 +0000 (19:49 -0400)]
[dev.typeparams] cmd/compile: do not schedule in-register args late, even for block control
In the scheduler we have the logic that if a Value is used as the
block's control, we schedule it at the end, except for Phis and
Args. Even the comment says so, the code doesn't exclude
in-register Args (OpArgXXXReg).
Change to check for score instead, which includes OpArgXXXRegs.
It also includes GetClosurePtr, which must be scheduled early.
We just happen to never use it as block control.
Found when working on ARM64 register ABI. In theory this could
apply to AMD64 as well. But on AMD64 we never use in-register
Value as block control, as conditional branch is always based on
FLAGS, never based on registers, so it doesn't actually cause any
problem.
Change-Id: I167a550309772639574f7468caf91bd805eb74c6
Reviewed-on: https://go-review.googlesource.com/c/go/+/322849
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Than McIntosh <thanm@google.com> Reviewed-by: David Chase <drchase@google.com>
Damien Neil [Wed, 26 May 2021 22:44:46 +0000 (15:44 -0700)]
src/os: revert accidentally submitted change
Change-Id: Ib34984a6bd0abc76266e8aac96f9f8ad8ae21d17
Reviewed-on: https://go-review.googlesource.com/c/go/+/322894
Trust: Damien Neil <dneil@google.com>
Run-TryBot: Damien Neil <dneil@google.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
Damien Neil [Wed, 26 May 2021 18:28:01 +0000 (11:28 -0700)]
doc/go1.17: document net/... changes
For #44513.
Fixes #46014.
Fixes #46015.
Fixes #46016.
Fixes #46017.
Change-Id: I356483d68d07159281dfe2ea1e49430ddf200973
Reviewed-on: https://go-review.googlesource.com/c/go/+/322891
Trust: Damien Neil <dneil@google.com>
Run-TryBot: Damien Neil <dneil@google.com> Reviewed-by: Ian Lance Taylor <iant@golang.org>
Damien Neil [Wed, 26 May 2021 18:12:43 +0000 (11:12 -0700)]
doc/go1.17: document syscall changes
Fixes #46023
Change-Id: Ia63829d03afb0936862b16f0971175cbaa1095bc
Reviewed-on: https://go-review.googlesource.com/c/go/+/322890
Trust: Damien Neil <dneil@google.com>
Run-TryBot: Damien Neil <dneil@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
Damien Neil [Wed, 26 May 2021 20:43:15 +0000 (13:43 -0700)]
mime: document use of the Shared MIME-Info Database
For #44513.
Fixes #46013.
Change-Id: I382603208aa94b66d5220cf0f418b8528a4e4148
Reviewed-on: https://go-review.googlesource.com/c/go/+/322892
Trust: Damien Neil <dneil@google.com>
Run-TryBot: Damien Neil <dneil@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
Dan Scales [Sun, 16 May 2021 21:48:05 +0000 (14:48 -0700)]
[dev.typeparams] cmd/compile: always generate (*T).M wrappers for instantiated methods
Always generate (*T).M wrappers for instantiated methods, even when the
instantiated method is being generated for another package (its source
package)
Added new function t.IsInstantiated() to check for fully-instantiated
types (generic type instantiated with concrete types, hence concrete
themselves). This function helps hide the representation of instantiated
types outside of the types package.
Added new export/import test setsimp.go that needs this change.
Change-Id: Ifb700db8c9494e1684c93735edb20f4709be5f7f
Reviewed-on: https://go-review.googlesource.com/c/go/+/322193
Trust: Dan Scales <danscales@google.com>
Trust: Robert Griesemer <gri@golang.org> Reviewed-by: Robert Griesemer <gri@golang.org>
Matthew Dempsky [Tue, 18 May 2021 08:20:13 +0000 (01:20 -0700)]
[dev.typeparams] cmd/compile: avoid some redundant type construction
This CL updates noder and typecheck to avoid a couple of instances of
redundant evaluation of type expressions:
1. When noding struct fields or parameter tuples, check for
syntax.Type reuse between adjacent fields and then reuse the
corresponding ir.Node type expression. It would perhaps be even better
to avoid re-noding the type expression too, but noder's days are
numbered anyway, so I'd rather be minimally invasive here.
2. When importing an empty interface, reuse the same cached empty
interface instance that is used for empty interfaces that appear in
source. This matches types2's behavior, which uses a single
types2.Interface instance for all empty interfaces.
These changes are motivated by making it possible to migrate from
typecheck to types2 while passing toolstash -cmp.
Updates #46208.
Change-Id: Ia6458894494464d863181db356f3284630c90ffe
Reviewed-on: https://go-review.googlesource.com/c/go/+/320789
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Trust: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Robert Griesemer <gri@golang.org>
Rob Findley [Fri, 7 May 2021 02:28:37 +0000 (22:28 -0400)]
go/types: ensure that Named.check is nilled out once it is expanded
To support lazy expansion of defined types, *Named holds on to a
*Checker field, which can pin the *Checker in memory. This can have
meaningful memory implications for applications that keep type
information around.
Ensure that the Checker field is nilled out for any Named types that are
instantiated during the type checking pass, by deferring a clean up to
'later' boundaries.
In testing this almost exactly offset the ~6% memory footprint increase
I observed with 1.17.
Fixes #45580
Change-Id: I8aa5bb777573a924afe36e79fa65f8729336bceb
Reviewed-on: https://go-review.googlesource.com/c/go/+/318849
Trust: Robert Findley <rfindley@google.com>
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Robert Griesemer <gri@golang.org>
Dan Scales [Tue, 25 May 2021 03:36:42 +0000 (20:36 -0700)]
[dev.typeparams] cmd/compile: adding union support in types1
Add union support in types1, and allow exporting of unions, and
importing unions back into types1 and types2.
Added new test mincheck.go/mincheck.dir that tests that type lists (type
sets) are correctly exported/imported, so that types2 gives correct
errors that an instantiation doesn't fit the type list in the type param
constraint.
Change-Id: I8041c6c79289c870a95ed5a1b10e4c1c16985b12
Reviewed-on: https://go-review.googlesource.com/c/go/+/322609
Trust: Dan Scales <danscales@google.com>
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Robert Griesemer <gri@golang.org>
Roland Shoemaker [Tue, 11 May 2021 18:31:31 +0000 (11:31 -0700)]
archive/zip: only preallocate File slice if reasonably sized
Since the number of files in the EOCD record isn't validated, it isn't
safe to preallocate Reader.Files using that field. A malformed archive
can indicate it contains up to 1 << 128 - 1 files. We can still safely
preallocate the slice by checking if the specified number of files in
the archive is reasonable, given the size of the archive.
Thanks to the OSS-Fuzz project for discovering this issue and to
Emmanuel Odeke for reporting it.
Fixes #46242
Fixes CVE-2021-33196
Change-Id: I3c76d8eec178468b380d87fdb4a3f2cb06f0ee76
Reviewed-on: https://go-review.googlesource.com/c/go/+/318909
Trust: Roland Shoemaker <roland@golang.org>
Trust: Katie Hockman <katie@golang.org>
Trust: Joe Tsai <thebrokentoaster@gmail.com>
Run-TryBot: Roland Shoemaker <roland@golang.org>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Katie Hockman <katie@golang.org> Reviewed-by: Joe Tsai <thebrokentoaster@gmail.com>
Matthew Dempsky [Tue, 25 May 2021 21:06:56 +0000 (14:06 -0700)]
[dev.typeparams] test: fix and update run.go's generics testing
In a late change to golang.org/cl/320609, while going back and forth
on the meaning of the boolean result value for "checkFlags", I got one
of the cases wrong. As a result, rather than testing both default
flags and -G=3, we were (redundanly) testing default flags and -G=0.
I ran into this because in my local dev tree, I'm using types2 even
for -G=0, and evidently one of the recent types2 CLs changed the error
message in fixedbugs/issue10975.go. Fortunately, there haven't been
any other regressions despite lacking test coverage.
So this CL cleans things up a bit:
1. Fixes that test to use -lang=go1.17, so types2 reports the old
error message again.
2. Renames "checkFlags" to "validForGLevel" so the boolean result is
harder to get wrong.
3. Removes the blanket deny list of all -m tests, and instead adds the
specific tests that are still failing. This effectively extends -G=3
coverage to another 27 tests that were using -m but already passing,
so we can make sure they don't regress again.
4. Adds a -f flag to force running tests even if they're in the deny
list, to make it easier to test whether they're still failing without
having to edit run.go.
Change-Id: I058d9d90d81a92189e54c6f591d95fb617fede53
Reviewed-on: https://go-review.googlesource.com/c/go/+/322612
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com> Reviewed-by: Robert Griesemer <gri@golang.org>
Matthew Dempsky [Tue, 25 May 2021 22:37:20 +0000 (15:37 -0700)]
[dev.typeparams] all: merge master (f22ec51) into dev.typeparams
Merge List:
+ 2021-05-25 f22ec51deb doc: add Go 1.17 release note about inlining functions with closures
+ 2021-05-25 8b462d7567 cmd/go: add a -compat flag to 'go mod tidy'
+ 2021-05-24 c89f1224a5 net: verify results from Lookup* are valid domain names
+ 2021-05-24 08a8fa9c47 misc/wasm: ensure correct stack pointer in catch clauses
+ 2021-05-24 32b73ae180 cmd/go: align checks of module path during initialization.
+ 2021-05-24 15d9d4a009 cmd/go: add tests illustrating what happens when Go 1.16 is used in a Go 1.17 main module
+ 2021-05-24 873401df5b cmd/compile: ensure equal functions don't do unaligned loads
+ 2021-05-24 b83610699a cmd/compile: record regabi status in DW_AT_producer
+ 2021-05-24 a22e317220 cmd/compile: always include underlying type for map types
+ 2021-05-24 4356e7e85f runtime: account for spill slots in Windows callback compilation
+ 2021-05-24 52d7033ff6 cmd/go/internal/modload: set the default GoVersion in a single location
+ 2021-05-24 05819bc104 cmd/go/internal/modcmd: factor out a type for flags whose arguments are Go versions
+ 2021-05-22 cca23a7373 cmd/compile: revert CL/316890
+ 2021-05-21 f87194cbd7 doc/go1.17: document changes to net/http package
+ 2021-05-21 217f5dd496 doc: document additional atomic.Value methods
+ 2021-05-21 3c656445f1 cmd/go: in TestScript/mod_replace, download an explicit module path
+ 2021-05-21 76b2d6afed os: document that StartProcess puts files into blocking mode
+ 2021-05-21 e4d7525c3e cmd/dist: display first class port status in json output
+ 2021-05-21 4fb10b2118 cmd/go: in 'go mod download' without args, don't save module zip sums
+ 2021-05-21 4fda54ce3f doc/go1.17: document database/sql changes for Go 1.17
+ 2021-05-21 8876b9bd6a doc/go1.17: document io/fs changes for Go 1.17
+ 2021-05-21 5fee772c87 doc/go1.17: document archive/zip changes for Go 1.17
+ 2021-05-21 3148694f60 cmd/go: remove warning from module deprecation notice printing
+ 2021-05-21 7e63c8b765 runtime: wait for Go runtime to initialize in Windows signal test
+ 2021-05-21 831573cd21 io/fs: added an example for io/fs.WalkDir
+ 2021-05-20 baa934d26d cmd: go get golang.org/x/tools/analysis@49064d23 && go mod vendor
+ 2021-05-20 7c692cc7ea doc/go1.17: document changes to os package
+ 2021-05-20 ce9a3b79d5 crypto/x509: add new FreeBSD 12.2+ trusted certificate folder
+ 2021-05-20 f8be906d74 test: re-enable test on riscv64 now that it supports external linking
+ 2021-05-20 def5360541 doc/go1.17: add release notes for OpenBSD ports
+ 2021-05-20 ef1f52cc38 doc/go1.17: add release note for windows/arm64 port
+ 2021-05-20 bb7495a46d doc/go1.17: document new math constants
+ 2021-05-20 f07e4dae3c syscall: document NewCallback and NewCallbackCDecl limitations
+ 2021-05-20 a8d85918b6 misc/cgo/testplugin: skip TestIssue25756pie on darwin/arm64 builder
+ 2021-05-19 6c1c055d1e cmd/internal/moddeps: use filepath.SkipDir only on directories
+ 2021-05-19 658b5e66ec net: return nil UDPAddr from ReadFromUDP
+ 2021-05-19 15a374d5c1 test: check portable error message on issue46234.go
+ 2021-05-18 eeadce2d87 go/build/constraint: fix parsing of "// +build" (with no args)
+ 2021-05-18 6d2ef2ef2a cmd/compile: don't emit inltree for closure within body of inlined func
+ 2021-05-18 048cb4ceee crypto/x509: remove duplicate import
Robert Griesemer [Sat, 22 May 2021 02:46:45 +0000 (19:46 -0700)]
[dev.typeparams] cmd/compile/internal/types2: factor out constraint satisfaction check
This is a simple move of a block of inlined code into a function
to make instantiation more manageable and easier to understand.
There is no change in functionality or behavior.
Change-Id: I46e7a9ea03527731e1f0219b3402eb03949627c5
Reviewed-on: https://go-review.googlesource.com/c/go/+/322070
Trust: Robert Griesemer <gri@golang.org> Reviewed-by: Robert Findley <rfindley@google.com>
Robert Griesemer [Thu, 20 May 2021 22:13:04 +0000 (15:13 -0700)]
[dev.typeparams] cmd/compile/internal/types2: accept embedded interface elements
Accept embedded interface elements of the form ~T or A|B and
treat them like type lists: for now the elements of a union
cannot be interfaces. Also, translate existing style "type"-
lists in interfaces into interface elements: "type a, b, c"
becomes a union element "~a|~b|~c" which in turn is handled
internally like a type list.
For now, "~" is still ignored and type lists are mapped to
Sum types as before, thus ensuring that all existing tests
work as before (with some minor adjustments).
Introduced a new Union type to represent union elements.
For now they don't make it past interface completion where
they are represented as a Sum type. Thus, except for printing
(and the respective tests) and substitution for interfaces,
the various type switches ignore Union types. In a next step,
we'll replace Sum types with union types and then consider
the ~ functionality as well.
Because union elements are no different from embedded interfaces
we don't need a separate Interface.types field anymore. Removed.
For #45346.
Change-Id: I98ac3286aea9d706e98aee80241d4712ed99af08
Reviewed-on: https://go-review.googlesource.com/c/go/+/321689
Trust: Robert Griesemer <gri@golang.org> Reviewed-by: Robert Findley <rfindley@google.com>
Roland Shoemaker [Mon, 17 May 2021 17:06:51 +0000 (10:06 -0700)]
net: verify results from Lookup* are valid domain names
For the methods LookupCNAME, LookupSRV, LookupMX, LookupNS, and
LookupAddr check that the returned domain names are in fact valid DNS
names using the existing isDomainName function.
Thanks to Philipp Jeitner and Haya Shulman from Fraunhofer SIT for
reporting this issue.
Fixes #46241
Fixes CVE-2021-33195
Change-Id: Icf231acd93178a3b6aec3f178cff7e693f74ef8c
Reviewed-on: https://go-review.googlesource.com/c/go/+/320949
Trust: Roland Shoemaker <roland@golang.org>
Trust: Katie Hockman <katie@golang.org>
Run-TryBot: Roland Shoemaker <roland@golang.org>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Katie Hockman <katie@golang.org>
Dan Scales [Fri, 14 May 2021 23:35:04 +0000 (16:35 -0700)]
[dev.typeparams] Don't check typecheck(3) on transform, so no need to export/import it
We have a value typecheck(3) that indicates that a node in a generic
function still needs transformation (via the functions in transform.go).
But it is not very desirable to export/import the value of typecheck(3).
So, I changed the stenciling code to just try to transform all relevant
node types during node copy. Almost all tranform functions were already
idempotent. I only had to add an extra if check before calling
transformAssign() in the OAS case. We still use the typecheck(3) in
noder to determine when higher-nodes have to delay transformation
because one or more of their args are delaying transformation.
Added new test mapsimp.go that required these tranformations after import.
As an additional change, export/import of OINDEX requires exporting the
type using w.exoticType() rather than w.typ(), in order to handle
generic functions. Since generic functions can have pre-transform
operations, the index operation can have a tuple type (multiple return
from a map lookup).
Added printing of imported function bodies in -W=3 debug mode.
Change-Id: I220e2428dc5f2741e91db146f075eb5b6045f451
Reviewed-on: https://go-review.googlesource.com/c/go/+/322191
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com> Reviewed-by: Keith Randall <khr@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Dan Scales [Wed, 12 May 2021 02:29:10 +0000 (19:29 -0700)]
[dev.typeparams] cmd/compile: Fix handling of Name nodes during stenciling
The name substitution for stenciling was incorrectly handling non-local
names. Made changes to explicitly built the vars[] name substitution map
based on the local variables (similar to what inlining substitution
does). Then, we we are stenciling a name node, we do NOT make a copy of
the name node if it is not in vars[], since it is then a reference to an
external name. Added new function localvar() to create the new nodes for
the local variables and put them in the vars[] map.
New test listimp2.go, added missing test calls in list2.go
Change-Id: I8946478250c7bf2bd31c3247089bd50cfeeda0fd
Reviewed-on: https://go-review.googlesource.com/c/go/+/322190
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org>
Richard Musiol [Sun, 23 May 2021 21:06:43 +0000 (23:06 +0200)]
misc/wasm: ensure correct stack pointer in catch clauses
The stack pointer may have changed after a call from JavaScript into Go
code because of stack growth. The normal case already updated the
sp variable accordingly, but the catch case did not yet.
Fixes #45433
Change-Id: I3e0a33381929626f6b21902948935eb5ffb26c96
Reviewed-on: https://go-review.googlesource.com/c/go/+/321936
Trust: Richard Musiol <neelance@gmail.com>
Run-TryBot: Richard Musiol <neelance@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cherry Mui <cherryyz@google.com>
For register ABI, we wrap deferred/go'd function with arguments
or results in an argumentless closure, so the runtime can call the
function without knowing how to marshal the arguments, or
reserving frame for arguments and results.
The wrapping mechanism works everywhere, regardless of whether the
register ABI is used. And wrapping will simplify the compiler and
runtime's implementation for defer and go calls. For example, the
compiler will not need to marshal arguments for defer/go calls,
the opendefer metadata will not need to contain argument
information, and _defer record will be fixed-sized.
Enable wrapping everywhere.
Change-Id: I2032ba87249ceb686310dc640fb00696669ae912
Reviewed-on: https://go-review.googlesource.com/c/go/+/321958
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com> Reviewed-by: Michael Knyszek <mknyszek@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Cherry Mui [Fri, 21 May 2021 22:28:25 +0000 (18:28 -0400)]
[dev.typeparams] reflect: use internal/abi.FuncPCABI0 to take address of assembly functions
makeFuncStub and methodValueCall on AMD64 are marked as
ABIInternal, so Go code can get their (unwrapped) addresses
(using open-coded funcPC). Ues internal/abi.FuncPCABI0 instead,
and un-mark the functions.
Change-Id: Id28b6101ec7e55bc5a357d4236482cec70cd7e5d
Reviewed-on: https://go-review.googlesource.com/c/go/+/322350
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Michael Knyszek <mknyszek@google.com>
Cherry Mui [Fri, 21 May 2021 22:13:04 +0000 (18:13 -0400)]
[dev.typeparams] runtime/pprof: replace funcPC with internal/abi.FuncPCABIInternal
All funcPC references are ABIInternal functions. Replace with the
intrinsics.
Change-Id: I2266bb6d2b713eb63b6a09846e9f9c423cab6e9b
Reviewed-on: https://go-review.googlesource.com/c/go/+/322349
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Michael Knyszek <mknyszek@google.com>
Constantin Konstantinidis [Sun, 16 May 2021 09:03:34 +0000 (11:03 +0200)]
cmd/go: align checks of module path during initialization.
Fixes #45025.
Change-Id: I70c2b745f764484e4b3a2824adc470f168fb2c50
Reviewed-on: https://go-review.googlesource.com/c/go/+/320310
Trust: Jay Conrod <jayconrod@google.com>
Trust: Bryan C. Mills <bcmills@google.com>
Run-TryBot: Jay Conrod <jayconrod@google.com> Reviewed-by: Bryan C. Mills <bcmills@google.com> Reviewed-by: Jay Conrod <jayconrod@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Alessandro Arzilli [Sun, 9 May 2021 07:05:45 +0000 (09:05 +0200)]
cmd/compile: record regabi status in DW_AT_producer
Records if regabi was enabled during compilation in the DW_AT_producer
attribute of each compile unit.
This is useful to debuggers that support the debugCall protocol.
Change-Id: I5ad2c48ebf126aeb8bfb459b53a1a5304550036a
Reviewed-on: https://go-review.googlesource.com/c/go/+/318050
Trust: Dmitri Shuralyov <dmitshur@golang.org> Reviewed-by: Than McIntosh <thanm@google.com> Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Keith Randall [Sun, 23 May 2021 04:59:00 +0000 (21:59 -0700)]
cmd/compile: always include underlying type for map types
This is a different fix for #37716.
Should help make the fix for #46283 easier, since we will no longer
need to keep compiler-generated hash functions and the runtime
hash function in sync.
Change-Id: I84cb93144e425dcd03afc552b5fbd0f2d2cc6d39
Reviewed-on: https://go-review.googlesource.com/c/go/+/322150
Trust: Keith Randall <khr@golang.org>
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cherry Mui <cherryyz@google.com>
Michael Anthony Knyszek [Fri, 21 May 2021 20:30:02 +0000 (20:30 +0000)]
runtime: account for spill slots in Windows callback compilation
The Go ABI, as it stands, requires spill space to be reserved for
register arguments. syscall.NewCallback (because of compileCallback)
does not actually reserve this space, leading to issues if the Go code
it invokes actually makes use of it.
Fixes #46301.
Change-Id: Idbc3578accaaaa29e4ba32291ef08d464da0b7b0
Reviewed-on: https://go-review.googlesource.com/c/go/+/322029
Trust: Michael Knyszek <mknyszek@google.com>
Run-TryBot: Michael Knyszek <mknyszek@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Egon Elbre <egonelbre@gmail.com> Reviewed-by: Cherry Mui <cherryyz@google.com>
Dan Scales [Sat, 22 May 2021 03:09:55 +0000 (20:09 -0700)]
[dev.typeparams] cmd/compile: fix case where we were copying a raw Node
Replace the raw Node copy with the creation of a new node, and the
copying of the needed flags and fields.
Change-Id: I636bf228ba28c0d5dc25f8366d82379d86ecd731
Reviewed-on: https://go-review.googlesource.com/c/go/+/322189
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Trust: Dan Scales <danscales@google.com>