Robert Griesemer [Wed, 30 Jun 2021 20:26:11 +0000 (13:26 -0700)]
[dev.typeparams] cmd/compile/internal/types2: move (remaining) type decls into their own files (cleanup)
This change moves the type declarations and associated methods for
each of the remaining Type types into their respective files. Except
for import and comment adjustments, and receiver name adjustments for
the Underlying and String methods, no functional changes are made.
Change-Id: I3b9ccab3c85abea4852bacd28c2e47cec05c0bac
Reviewed-on: https://go-review.googlesource.com/c/go/+/332093
Trust: Robert Griesemer <gri@golang.org> Reviewed-by: Robert Findley <rfindley@google.com>
This parameter is only used for debugging, and all of putInlinedFunc's
callers were actually passing the callee symbol instead.
Change-Id: I964825a514cc42a1b0bcbce4ef11a1a47084d882
Reviewed-on: https://go-review.googlesource.com/c/go/+/332370
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
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Dan Scales [Wed, 30 Jun 2021 22:38:56 +0000 (15:38 -0700)]
[dev.typeparams] cmd/compile: fix getDictionarySym for methods references, write out sub-dictionaries
For method references (only), selectorExpr() now computes n.Selection,
which is the generic method that is selected. This allows us to compute
as needed the proper sub-dictionary for method reference. Also cleans up
some code for distinguishing method references from references to a
field that has a function value (especially in the presence of embedded
fields).
Change-Id: I9c5b789c15537ff48c70ca7a6444aa0420178a3a
Reviewed-on: https://go-review.googlesource.com/c/go/+/332095
Trust: Dan Scales <danscales@google.com>
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Rather than manually formatting a byte-string and then using a map
lookup to convert it to string, we can just use a slice. This avoids
both the overhead of formatting the byte slice and the map lookup.
Change-Id: Ia7b883632ea990ce9ee848dd4b4e4cdfbd611212
Reviewed-on: https://go-review.googlesource.com/c/go/+/332191
Trust: Matthew Dempsky <mdempsky@google.com>
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Matthew Dempsky [Thu, 1 Jul 2021 02:20:28 +0000 (19:20 -0700)]
[dev.typeparams] cmd/compile: refactor top-level typechecking in unified IR
This CL is a first step towards incremental typechecking during IR
construction within unified IR. Namely, all top-level declarations are
now typechecked as they're constructed, except for assignments (which
aren't really declarations anyway).
Change-Id: I65763a7659bf2e0f5e89dfe9e709d60e0fa4c631
Reviewed-on: https://go-review.googlesource.com/c/go/+/332097
Trust: Matthew Dempsky <mdempsky@google.com>
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Matthew Dempsky [Thu, 1 Jul 2021 01:19:26 +0000 (18:19 -0700)]
[dev.typeparams] all: merge master (4711bf3) into dev.typeparams
Conflicts:
- src/cmd/compile/internal/walk/builtin.go
On dev.typeparams, CL 330194 changed OCHECKNIL to not require manual
SetTypecheck(1) anymore; while on master, CL 331070 got rid of the
OCHECKNIL altogether by moving the check into the runtime support
functions.
- src/internal/buildcfg/exp.go
On master, CL 331109 refactored the logic for parsing the
GOEXPERIMENT string, so that it could be more easily reused by
cmd/go; while on dev.typeparams, several CLs tweaked the regabi
experiment defaults.
Merge List:
+ 2021-06-30 4711bf30e5 doc/go1.17: linkify "language changes" in the runtime section
+ 2021-06-30 ed56ea73e8 path/filepath: deflake TestEvalSymlinksAboveRoot on darwin
+ 2021-06-30 c080d0323b cmd/dist: pass -Wno-unknown-warning-option in swig_callback_lto
+ 2021-06-30 7d0e9e6e74 image/gif: fix typo in the comment (io.ReadByte -> io.ByteReader)
+ 2021-06-30 0fa3265fe1 os: change example to avoid deprecated function
+ 2021-06-30 d19a53338f image: add Uniform.RGBA64At and Rectangle.RGBA64At
+ 2021-06-30 c45e800e0c crypto/x509: don't fail on optional auth key id fields
+ 2021-06-29 f9d50953b9 net: fix failure of TestCVE202133195
+ 2021-06-29 e294b8a49e doc/go1.17: fix typo "MacOS" -> "macOS"
+ 2021-06-29 3463852b76 math/big: fix typo of comment (`BytesScanner` to `ByteScanner`)
+ 2021-06-29 fd4b587da3 cmd/compile: suppress details error for invalid variadic argument type
+ 2021-06-29 e2e05af6e1 cmd/internal/obj/arm64: fix an encoding error of CMPW instruction
+ 2021-06-28 4bb0847b08 cmd/compile,runtime: change unsafe.Slice((*T)(nil), 0) to return []T(nil)
+ 2021-06-28 1519271a93 spec: change unsafe.Slice((*T)(nil), 0) to return []T(nil)
+ 2021-06-28 5385e2386b runtime/internal/atomic: drop Cas64 pointer indirection in comments
+ 2021-06-28 956c81bfe6 cmd/go: add GOEXPERIMENT to `go env` output
+ 2021-06-28 a1d27269d6 cmd/go: prep for 'go env' refactoring
+ 2021-06-28 901510ed4e cmd/link/internal/ld: skip the windows ASLR test when CGO_ENABLED=0
+ 2021-06-28 361159c055 cmd/cgo: fix 'see gmp.go' to 'see doc.go'
+ 2021-06-27 c95464f0ea internal/buildcfg: refactor GOEXPERIMENT parsing code somewhat
+ 2021-06-25 ed01ceaf48 runtime/race: use race build tag on syso_test.go
+ 2021-06-25 d1916e5e84 go/types: in TestCheck/issues.src, import regexp/syntax instead of cmd/compile/internal/syntax
+ 2021-06-25 5160896c69 go/types: in TestStdlib, import from source instead of export data
+ 2021-06-25 d01bc571f7 runtime: make ncgocall a global counter
Dan Scales [Tue, 22 Jun 2021 00:04:59 +0000 (17:04 -0700)]
[dev.typeparams] cmd/compile: functions to create GC shape types/names for a concrete type
Created functions to create GC shape type and names, based on a proposal
from Keith. Kept unsigned and signed integer types as different, since
they have different shift operations.
Included adding in alignment fields where padding is
required between fields, even though that seems like it will be fairly
uncommon to use.
Added some extra unusual struct typeparams (for testing the gcshape
names/types) in index.go test.
Change-Id: I8132bbd28098bd933435b8972ac5cc0b39f4c0df
Reviewed-on: https://go-review.googlesource.com/c/go/+/329921
Trust: Dan Scales <danscales@google.com>
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TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org>
Robert Griesemer [Tue, 29 Jun 2021 00:21:26 +0000 (17:21 -0700)]
[dev.typeparams] cmd/compile/internal/types2: move embedding positions from Checker to Interface
This change moves the position information to the place where it
is actually used. It also simplifies getting rid of it after use.
In the process, fixed a latent bug: Before this CL, embedded types
were sorted, but the corresponding embedding positions were not.
Removed the sorting altogether as it is not needed for type-checking.
Change-Id: I48003f317196d814326424430336b6cb222fdee6
Reviewed-on: https://go-review.googlesource.com/c/go/+/331514
Trust: Robert Griesemer <gri@golang.org> Reviewed-by: Robert Findley <rfindley@google.com>
Robert Griesemer [Fri, 18 Jun 2021 00:49:15 +0000 (17:49 -0700)]
[dev.typeparams] cmd/compile/internal/types2: introduce type set abstraction for interfaces
With this change, interfaces are "completed" on-demand, when needed,
and the respective information (set of all methods, type constraints)
is recorded in a new typeSet data structure.
As a consequence, interfaces don't need to be explicitly completed
anymore and (internal) uses of interfaces have become much simpler.
This change also introduces a new field Interface.complete to indicate
that all methods and embedded elements have been set up. This prevent
the computation and recording (!) of a partial type set for erroneous
programs (if we compute the partial type set and store it, subsequent
type set accesses use the wrong type set which may lead to follow-on
errors).
Change-Id: I1ffc907f7d0fb93b3e987fe5ff9c6fa5cae00d7f
Reviewed-on: https://go-review.googlesource.com/c/go/+/329309
Trust: Robert Griesemer <gri@golang.org>
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uji [Tue, 29 Jun 2021 15:06:23 +0000 (00:06 +0900)]
image/gif: fix typo in the comment (io.ReadByte -> io.ByteReader)
Fixes #46967
Change-Id: I66e69c70b74e904623e8ca854562d255692b2143
Reviewed-on: https://go-review.googlesource.com/c/go/+/331649 Reviewed-by: Ian Lance Taylor <iant@golang.org>
Trust: Carlos Amedee <carlos@golang.org>
Eli Bendersky [Tue, 29 Jun 2021 23:31:18 +0000 (16:31 -0700)]
os: change example to avoid deprecated function
The IsNotExist function is deprecated; change package example to avoid
it and use the recommended way instead.
Fixes #46976
Change-Id: I3c301d0a89b6bda42184df314ba8418062ca39ee
Reviewed-on: https://go-review.googlesource.com/c/go/+/331692
Trust: Dmitri Shuralyov <dmitshur@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org> Reviewed-by: Robert Griesemer <gri@golang.org>
Matthew Dempsky [Tue, 29 Jun 2021 05:41:50 +0000 (22:41 -0700)]
[dev.typeparams] cmd/compile: add derived-type dictionaries to unified IR
This CL updates the unified IR export data serialization to explicitly
and separately record the derived types used by a declaration. The
readers currently just use this data to construct types/IR the same as
before, but eventually we can use it for emitting GC-shape
dictionaries.
Change-Id: I7d67ad9b3f1fbe69664bf19e056bc94f73507220
Reviewed-on: https://go-review.googlesource.com/c/go/+/331829
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Nigel Tao [Tue, 29 Jun 2021 06:53:44 +0000 (16:53 +1000)]
image: add Uniform.RGBA64At and Rectangle.RGBA64At
These types already implemented the Image interface. They should also
implement the RGBA64Image interface (new in Go 1.17)
Updates #44808
Change-Id: I9a2b13e305997088ae874efb95ad9e1648f94812
Reviewed-on: https://go-review.googlesource.com/c/go/+/331570
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Roland Shoemaker [Tue, 29 Jun 2021 16:20:04 +0000 (09:20 -0700)]
crypto/x509: don't fail on optional auth key id fields
If a certificate contains an AuthorityKeyIdentifier extension that
lacks the keyIdentifier field, but contains the authorityCertIssuer
and/or the authorityCertSerialNumber fields, don't return an error and
continue parsing.
Fixes #46854
Change-Id: I82739b415441f639a722755cc1f449d73078adfc
Reviewed-on: https://go-review.googlesource.com/c/go/+/331689
Trust: Roland Shoemaker <roland@golang.org>
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Xiangdong Ji [Mon, 28 Jun 2021 12:27:30 +0000 (20:27 +0800)]
net: fix failure of TestCVE202133195
TestCVE202133195 fails in testing LookupSRV if /etc/resolv.conf sets the option
'ndots' larger than the number of dots in the domain name under query.
Fix the issue by making the input domain name in test codes 'rooted' to skip search
list qualifying.
Fixes #46955
Change-Id: I1909fa7e54e9c9af57623e57cafc905729ff99fa
Reviewed-on: https://go-review.googlesource.com/c/go/+/330842 Reviewed-by: Damien Neil <dneil@google.com>
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Keith Randall [Tue, 8 Jun 2021 22:58:16 +0000 (15:58 -0700)]
[dev.typeparams] cmd/compile: use dictionary entries for more conversion cases
This CL handles I(x) where I is an interface type and x has
typeparam type.
Change-Id: Ib99de2b741d588947f5e0164255f6365e98acd8a
Reviewed-on: https://go-review.googlesource.com/c/go/+/326189
Trust: Keith Randall <khr@golang.org>
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Keith Randall [Sun, 27 Jun 2021 01:18:16 +0000 (18:18 -0700)]
[dev.typeparams] cmd/compile: clean up instantiation and dictionary naming
Separate generation of instantiation and dictionary name generation.
Add code to add subdictionaries to a dictionary. Not quite working
yet, as we need to trigger generation of the subdictionaries for methods.
Change-Id: I0d46053eba695b217630b06ef2f990f6a0b52d83
Reviewed-on: https://go-review.googlesource.com/c/go/+/331209
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tkawakita [Tue, 29 Jun 2021 15:46:05 +0000 (00:46 +0900)]
math/big: fix typo of comment (`BytesScanner` to `ByteScanner`)
Change-Id: I0c2d26d6ede1452008992efbea7392162da65014
Reviewed-on: https://go-review.googlesource.com/c/go/+/331651 Reviewed-by: Robert Griesemer <gri@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
Cuong Manh Le [Tue, 29 Jun 2021 03:11:31 +0000 (10:11 +0700)]
cmd/compile: suppress details error for invalid variadic argument type
CL 255241 made error message involving variadic calls clearer. To do it,
we added a check that the type of variadic argument must be a slice.
That's why the compiler crashes for invalid variadic argument type.
Instead, we can just omit the details error message, and report not
enough arguments error, which matches the behavior of go/types and types2.
Fixes #46957
Change-Id: I638d7e8f031f0ee344d5d802104fd93a60aae00a
Reviewed-on: https://go-review.googlesource.com/c/go/+/331569
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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eric fang [Mon, 21 Jun 2021 02:11:25 +0000 (02:11 +0000)]
cmd/internal/obj/arm64: fix an encoding error of CMPW instruction
For arm64 CMP, ADD and other similar extended register instructions,
if there is no extension, the default extion is LSL<<0, but the default
encoding value (the value of 'option' field) of 32-bit instruction and
64-bit instruction is different, 32-bit is 2 and 64-bit is 3. But the
current assembler incorrectly encodes the value of 32-bit instruction
to 3. This CL fixes this error.
Change-Id: I0e09af2c9c5047a4ed2db7d1183290283db9c31c
Reviewed-on: https://go-review.googlesource.com/c/go/+/329749 Reviewed-by: eric fang <eric.fang@arm.com> Reviewed-by: Cherry Mui <cherryyz@google.com>
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Trust: Dmitri Shuralyov <dmitshur@golang.org>
Dan Scales [Mon, 28 Jun 2021 17:57:26 +0000 (10:57 -0700)]
[dev.typeparams] cmd/compile: add a field (method) name for function in TestABIUtilsInterfaces
Not having a field name for the method is not really correct, and makes
it look like an embedded field. In fact, currently types.CalcSize() in
abitest() is creating an error that is not actually reported.
Change-Id: I98c3a4abf5b6d610d9c3c56ce1042078374b5417
Reviewed-on: https://go-review.googlesource.com/c/go/+/331469
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Matthew Dempsky [Fri, 25 Jun 2021 18:07:28 +0000 (11:07 -0700)]
cmd/compile,runtime: change unsafe.Slice((*T)(nil), 0) to return []T(nil)
This CL removes the unconditional OCHECKNIL check added in
walkUnsafeSlice by instead passing it as a pointer to
runtime.unsafeslice, and hiding the check behind a `len == 0` check.
While here, this CL also implements checkptr functionality for
unsafe.Slice and disallows use of unsafe.Slice with //go:notinheap
types.
Updates #46742.
Change-Id: I743a445ac124304a4d7322a7fe089c4a21b9a655
Reviewed-on: https://go-review.googlesource.com/c/go/+/331070
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Matthew Dempsky [Fri, 25 Jun 2021 18:17:43 +0000 (11:17 -0700)]
spec: change unsafe.Slice((*T)(nil), 0) to return []T(nil)
Updates #46742.
Change-Id: I044933a657cd1a5cdb29863e49751df5fe9c258a
Reviewed-on: https://go-review.googlesource.com/c/go/+/331069
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Mia Zhu [Mon, 28 Jun 2021 17:10:56 +0000 (17:10 +0000)]
runtime/internal/atomic: drop Cas64 pointer indirection in comments
Change-Id: Ieff0065cbd81e045594ce12e10338b0666816d70
GitHub-Last-Rev: d842f5cb3e5d75f87957c068f6accc9d4a4ac224
GitHub-Pull-Request: golang/go#46949
Reviewed-on: https://go-review.googlesource.com/c/go/+/331309
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Dan Scales [Mon, 28 Jun 2021 18:50:26 +0000 (11:50 -0700)]
[dev.typeparams] cmd/compile: port fix for issue46725 to transform.go
Allow fix for issue46725 to work for -G=3 mode.
Change-Id: Id522fbc2278cf878cb3f95b3205a2122c164ae29
Reviewed-on: https://go-review.googlesource.com/c/go/+/331470
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Matthew Dempsky [Wed, 16 Jun 2021 22:10:57 +0000 (15:10 -0700)]
cmd/go: add GOEXPERIMENT to `go env` output
This CL adds GOEXPERIMENT to `go env` output, and also makes it
configurable via `GOENV`. Thanks to Baokun Lee's CL 304350 for the
test and initial work on this.
Fixes #45226.
Change-Id: Ie7f92a8a503b6a2a4df3f6598f0b2bf2915e2e7d
Reviewed-on: https://go-review.googlesource.com/c/go/+/328751
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Koichi Shiraishi [Sun, 27 Jun 2021 02:50:17 +0000 (11:50 +0900)]
cmd/cgo: fix 'see gmp.go' to 'see doc.go'
Change-Id: I303edc9dfbf4185b5b461b121ab504f6ed9f8630
Reviewed-on: https://go-review.googlesource.com/c/go/+/330839 Reviewed-by: Ian Lance Taylor <iant@golang.org>
Trust: Dmitri Shuralyov <dmitshur@golang.org>
Cuong Manh Le [Sat, 26 Jun 2021 18:31:03 +0000 (01:31 +0700)]
[dev.typeparams] cmd/compile: delay method value wrapper generation until walk
As walk already create the wrapper if necessary.
With this change, test/inline.go need to be changed to use
errorcheckwithauto, for matching "inlining call to ..." in autogenerated
position for method value wrapper, since when we don't generate the
wrapper immediately during typecheck.
Change-Id: I9ffbec9ad3c2b7295546976e2fa517336c13c89b
Reviewed-on: https://go-review.googlesource.com/c/go/+/330838
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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Cuong Manh Le [Sat, 26 Jun 2021 18:28:38 +0000 (01:28 +0700)]
[dev.typeparams] cmd/compile: rename OCALLPART to OMETHVALUE
Go spec call them "method values", not "partial calls". Note that
we use "OMETHVALUE" (as opposed to "OMETHODVALUE") to be consistent
with "OMETHEXPR".
Change-Id: I1efd985d4b567a1b4b20aeb603eb82db579edbd5
Reviewed-on: https://go-review.googlesource.com/c/go/+/330837
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This CL extracts out a ParseGOEXPERIMENT helper function that parses
GOOS/GOARCH/GOEXPERIMENT values and returns active and baseline
experiment flag sets and an error value, without affecting any global
state. This will be used in the subsequent CL for 'go env' support for
GOEXPERIMENT to validate configuration changes.
The existing package initialization for Experiment and
experimentBaseline and also UpdateExperiments are updated to use it as
well.
Change-Id: Ic2ed3fd36d2a6f7f3d8172fccb865e02505c0052
Reviewed-on: https://go-review.googlesource.com/c/go/+/331109
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Cuong Manh Le [Sat, 26 Jun 2021 08:28:16 +0000 (15:28 +0700)]
[dev.typeparams] cmd/compile: remove OCALLMETH Fatals in SSA generation
CL 330831 moved rewrite method calls to typecheck pass, then add Fatalf
check for mis-used of OCALLMETH in all frontend passes. The check in SSA
generation pass is now redundant.
Change-Id: If959b774ab3c3aeefabf32333f77b9a93c156ce3
Reviewed-on: https://go-review.googlesource.com/c/go/+/330834
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Cuong Manh Le [Fri, 25 Jun 2021 15:24:29 +0000 (22:24 +0700)]
[dev.typeparams] cmd/compile: rewrite method calls during typecheck
CL 330671 move rewriting method call to method expression to escape
analysis. This CL move the rewriting up further, into typecheck. It
helps simplify the code for dowstream passes, as they now only have to
deal with OCALLFUNC.
There're two notes:
- For -G=3, we can't rewrite d.M() where d is an instantiated receiver
in transformCall, but let irgen.stencil to rewrite it.
- Escape analysis still have to check for rewriting method calls, as
the devirtualization pass can still generate OCALLMETH.
Does not pass toolstash, since when the export data now contains method
expression calls instead of method calls.
Change-Id: I77465ef04d50dc4efedddca7eb55b3fc9483db0e
Reviewed-on: https://go-review.googlesource.com/c/go/+/330831
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Cuong Manh Le [Sat, 26 Jun 2021 06:57:51 +0000 (13:57 +0700)]
[dev.typeparams] cmd/compile: fix wrong AST generation in devirtualization
CL 330671 moved rewrite method calls to escape analysis. It accidently
made the AST invalid, by removing the OCALLMETH set operation during
devirtualization pass.
Change-Id: I862ffd7f880de55969d7784d9e7b3c38894f6b68
Reviewed-on: https://go-review.googlesource.com/c/go/+/330832
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Matthew Dempsky [Fri, 25 Jun 2021 17:15:40 +0000 (10:15 -0700)]
[dev.typeparams] cmd/compile: use Type.LinkString for map keys
This CL changes typecheck and order to use Type.LinkString for
computing map keys instead of Type.NameString. As mentioned in the
LinkString docs (added by the previous CL), LinkString reliably maps
type identity to string equality as long as the LinkString calls all
happen within the same compilation unit (which they do here).
This eliminates the need for subsequent types.Identical checks.
Change-Id: I32ff591e69d6f23f2dc6ebd5af343618ebe89013
Reviewed-on: https://go-review.googlesource.com/c/go/+/330911
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Matthew Dempsky [Fri, 25 Jun 2021 17:04:51 +0000 (10:04 -0700)]
[dev.typeparams] cmd/compile: rename types.Type.{Short,Long}String to {Link,Name}String
The original names "ShortString" and "LongString" refer back to the
fmt verbs used to request their formatting styles. However, I always
get confused working with them, in particular because (1) the
"ShortString" description, which uses package-path qualification, is
actually generally longer than the "LongString" description, which
uses package-name qualification; and (2) the documentation mentions
how they're often used, but doesn't actually describe why they're safe
for those purposes.
This CL renames them to "LinkString" and "NameString", respectively,
based on their primary use cases. It also attempts to more completely
describe the strings they return and how they can be used correctly.
Change-Id: I9158ae3eafa8ac53da31a78c7a6d929dc0199afe
Reviewed-on: https://go-review.googlesource.com/c/go/+/330910
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Cherry Mui [Fri, 25 Jun 2021 19:58:38 +0000 (15:58 -0400)]
runtime/race: use race build tag on syso_test.go
All other test files in the runtime/race package have race build
tag, except syso_test.go. The test is only relevant if the race
detector is supported. So apply the build tag.
Fixes #46931.
Change-Id: Icdb94214d3821b4ccf61133412ef39b4d7cc7691
Reviewed-on: https://go-review.googlesource.com/c/go/+/331050
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Bryan C. Mills [Thu, 24 Jun 2021 02:06:50 +0000 (22:06 -0400)]
go/types: in TestCheck/issues.src, import regexp/syntax instead of cmd/compile/internal/syntax
TestCheck/issues.src was failing after running
rm -r $(go env GOROOT)/pkg/*/cmd
as the builders do when building binary releases.
For users who write programs that depend on go/types, it should be
reasonable for end users to run the tests for go/types as part of 'go
test all', and those tests should pass even if they installed Go from
a binary release.
The test case in issues.src was importing cmd/compile/internal/syntax
in order to check the reported package name.
I tried to fix the problem by having the test import from source
instead of from export data. Unfortunately, that changed the behavior
under test: the go/types.Package.Imports reports (and is documented to
report) a different set of imported packages when loading from source
as compared to when loading from export data.
For this particular test, after CL 313035 that difference resulted in
go/types treating the "syntax" name as ambiguous when importing from
source, because a transitive dependency on "regexp/syntax" is found
when loading from source but omitted when loading from export data.
The simple fix to make the package unambiguous again is to adapt the
test to import regexp/syntax directly. That not only makes the package
unambiguous with all importers, but also avoids depending on a
cmd-internal package that cannot be loaded from export data in binary
distributions of the Go toolchain.
For #43232
Change-Id: Iba45a680ea20d26daa86ac538fd8f1938e8b73ab
Reviewed-on: https://go-review.googlesource.com/c/go/+/330431
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Bryan C. Mills [Wed, 23 Jun 2021 04:50:43 +0000 (00:50 -0400)]
go/types: in TestStdlib, import from source instead of export data
TestStdlib was failing after running
rm -r $(go env GOROOT)/pkg/*/cmd
as the builders do when building binary releases.¹
For users who write programs that depend on go/types, it should be
reasonable to run the tests for go/types as part of 'go test all', and
those tests should pass even if they installed Go from a binary
release.
I had originally drafted this as a fallback to import from source only
if the affected packages can't be imported by the default export-data
importer. Unfortunately, I realized that we don't currently have a
builder that tests the actual release (#46900), so it is quite likely
that the fallback path would bit-rot and produce unexpected test
regressions.
So instead, we now unconditionally import from source in TestStdlib.
That makes the test substantially slower (~15s instead of ~5s on my
workstation), but with less risk of regression, and TestStdlib is
skipped in short mode already so short-mode test time is unaffected.
If we change the builders to test the actual release configuration, we
can consider restoring the faster path when export data is available.
Tao Qingyun [Tue, 22 Jun 2021 00:24:05 +0000 (00:24 +0000)]
runtime: make ncgocall a global counter
ncgocall was stored per M, runtime.NumCgoCall lost the counter when a M die.
Fixes #46789
Change-Id: I85831fbb2713f4c30d1800d07e1f47aa0031970e
GitHub-Last-Rev: cbc15fa870de776d3fbf3b62fc9a5e01792e6a26
GitHub-Pull-Request: golang/go#46842
Reviewed-on: https://go-review.googlesource.com/c/go/+/329729
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Matthew Dempsky [Fri, 25 Jun 2021 08:54:50 +0000 (01:54 -0700)]
[dev.typeparams] cmd/compile: simplify variable capturing in unified IR
While initially building out unified IR, I didn't have any indexing
scheme. Everything was written out in order. Consequently, if I wanted
to write A before B, I had to compute A before B.
One particular example of this is handling closure variables: the
reader needs the list of closure variables before it can start reading
the function body, so I had to write them out first, and so I had to
compute them first in a separate, dedicated pass.
However, that constraint went away a while ago. For example, it's now
possible to replace the two-pass closure variable capture with a
single pass. We just write out the function body earlier, but then
wait to write out its index.
I anticipate this approach will make it easier to implement
dictionaries: rather than needing a separate pass to correctly
recognize and handle all of the generics cases, we can just hook into
the existing logic.
Change-Id: Iab1e07f9202cd5d2b6864eef10116960456214df
Reviewed-on: https://go-review.googlesource.com/c/go/+/330851
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We need to start the capture walk from expr.Body, not expr, otherwise
in quirks mode we'll set all of the captured variables' positions to
expr.Body.Rbrace.
Change-Id: Ic93f2773ae3756c2ec88dac17b4e9fb5a0771734
Reviewed-on: https://go-review.googlesource.com/c/go/+/330889
Trust: Matthew Dempsky <mdempsky@google.com>
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Matthew Dempsky [Thu, 24 Jun 2021 04:33:24 +0000 (21:33 -0700)]
[dev.typeparams] cmd/compile: generate wrappers within unified IR
This CL extends unified IR to handle creating wrapper methods. There's
relatively little about this code that's actually specific to unified
IR, but rewriting this logic allows a few benefits:
1. It decouples unified IR from reflectdata.methodWrapper, so the
latter code can evolve freely for -G=3's needs. This will also allow
the new code to evolve to unified IR's wrapper needs, which I
anticipate will operate slightly differently.
2. It provided an opportunity to revisit a lot of the code and
simplify/update it to current style. E.g., in the process, I
discovered #46903, which unified IR now gets correctly. (I have not
yet attempted to fix reflectdata.methodWrapper.)
3. It gives a convenient way for unified IR to ensure all of the
wrapper methods it needs are generated correctly.
For now, the wrapper generation is specific to non-quirks mode.
Change-Id: I5798de6b141f29e8eb6a5c563e7049627ff2868a
Reviewed-on: https://go-review.googlesource.com/c/go/+/330569
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Matthew Dempsky [Thu, 24 Jun 2021 18:31:56 +0000 (11:31 -0700)]
[dev.typeparams] cmd/compile: refactor "need to emit" logic for types
This CL refactors out a single reflectdata.NeedEmit function that
reports whether the current compilation unit needs to emit the runtime
type descriptor and method wrappers for a given type.
As a minor side bonus, this CL also skips compiling the "error.Error"
wrapper in non-runtime packages. Package runtime already
unconditionally emitted the runtime type descriptor for error, so we
just need to make sure it emits the wrapper and other packages don't.
Passes toolstash -cmp.
Change-Id: Ic9ea219dfba8a0a57f2f42f817bdff7618732bff
Reviewed-on: https://go-review.googlesource.com/c/go/+/330754
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Matthew Dempsky [Wed, 23 Jun 2021 21:45:34 +0000 (14:45 -0700)]
[dev.typeparams] cmd/compile: switch CaptureVars to use syntax.Walk
This CL refactors CaptureVars to use a visitor type so it's easier to
break out helper functions to review.
It also simplifies the quirks-mode handling of function literals:
instead of trying to maintain information about whether we're inside a
function literal or not, it now just rewrites the recorded position
information for any newly added free variables after walking the
function literal.
(Quirks mode is only for "toolstash -cmp"-style binary output testing
of normal code and will eventually be removed, so I don't think it's
important that this is an O(N^2) algorithm for deeply nested function
literals with lots of free variables.)
Change-Id: I0689984f6d88cf9937d4706d2d8de96415eaeee3
Reviewed-on: https://go-review.googlesource.com/c/go/+/330789
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Cuong Manh Le [Fri, 25 Jun 2021 04:17:04 +0000 (11:17 +0700)]
[dev.typeparams] all: merge master (37f9a8f) into dev.typeparams
Conflicts:
- src/go/types/check_test.go
CL 330629 fixed a bug in package qualification logic
- src/internal/buildcfg/exp.go
CL 329930 make parseExperiments get go arch string as input param
Merge List:
+ 2021-06-25 37f9a8f69d go/types: fix a bug in package qualification logic
+ 2021-06-24 c309c89db5 reflect: document that InterfaceData is a low-entropy RNG
+ 2021-06-24 cce621431a cmd/compile: fix wrong type in SSA generation for OSLICE2ARRPTR
+ 2021-06-24 600a2a4ffb cmd/go: don't try to add replaced versions that won't be selected
+ 2021-06-24 a9bb38222a net: remove hard-coded timeout in dialClosedPort test helper
+ 2021-06-24 86d72fa2cb time: handle invalid UTF-8 byte sequences in quote to prevent panic
+ 2021-06-24 44a12e5f33 cmd/go: search breadth-first instead of depth-first for test dependency cycles
+ 2021-06-24 73496e0df0 net: use absDomainName in the Windows lookupPTR test helper
+ 2021-06-24 222ed1b38a os: enable TestFifoEOF on openbsd
+ 2021-06-22 0ebd5a8de0 cmd/go: update ToolTags based on GOARCH value
+ 2021-06-22 5bd09e5efc spec: unsafe.Add/Slice are not permitted in statement context
+ 2021-06-22 666315b4d3 runtime/internal/atomic: remove incorrect pointer indirection in comment
+ 2021-06-22 63daa774b5 go/types: guard against checking instantiation when generics is disabled
+ 2021-06-22 197a5ee2ab cmd/gofmt: remove stale documentation for the -G flag
+ 2021-06-22 9afd158eb2 go/parser: parse an ast.IndexExpr for a[]
+ 2021-06-21 1bd5a20e3c cmd/go: add a -go flag to 'go mod graph'
+ 2021-06-21 761edf71f6 cmd/internal/moddeps: use a temporary directory for GOMODCACHE if needed
+ 2021-06-21 a0400420ad cmd/internal/moddeps: use -mod=readonly instead of -mod=mod
+ 2021-06-21 3f9ec83b10 cmd/go: document GOPPC64 environment variable
+ 2021-06-21 20bdfba325 go/scanner: fall back to next() when encountering 0 bytes in parseIdentifier
+ 2021-06-21 44f9a3566c database/sql: fix deadlock test in prepare statement
Cuong Manh Le [Thu, 24 Jun 2021 16:05:09 +0000 (23:05 +0700)]
[dev.typeparams] cmd/compile: rewrite method call into method expression during escape analysis
CL 330331 extended escape analysis to analyze method expression calls
the same as normal method calls. We can now simply desugar method calls
into function calls in escape analysis.
To do this, two things must be changed:
- Folding the rewrite method call to method expression call into an
export function in typecheck package, so others can re-use it.
- walkCall now have to call usemethod for method expression calls.
(It seems to me this is a bug in current tip, because if one write
(*rtype).Method(typ, i) in package "reflect", then the function won't
be marked with AttrReflectMethod)
Passes toolstash -cmp.
Change-Id: I4745ab6110b417c7fd32949cc799811a882cd2ec
Reviewed-on: https://go-review.googlesource.com/c/go/+/330671
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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Cuong Manh Le [Thu, 24 Jun 2021 07:13:39 +0000 (14:13 +0700)]
[dev.typeparams] cmd/compile: catch another mis-used OCALLMETH in backend
OCALLMETH is rewritten by walkCall to OCALLFUNC, and other places in
backend have already caught it. So do the same thing in state.expr for
consistency and prevent mis-use in frontend side.
While at it, also remove un-used function getParam.
Change-Id: I03e1ea907e0bcb05fa35fa81804c33b5c9a4d77e
Reviewed-on: https://go-review.googlesource.com/c/go/+/330669
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Rob Findley [Thu, 24 Jun 2021 15:01:49 +0000 (11:01 -0400)]
go/types: fix a bug in package qualification logic
CL 313035 had a bug, initializing pkgPathMap by walking the imported
package being considered rather than check.pkg.
Fix this, and enhance our tests to exercise this bug as well as other
edge cases.
Also fix error assertions in issues.src to not use quotation marks
inside the error regexp. The check tests only matched the error regexp
up to the first quotation mark.
Fixes #46905
Change-Id: I6aa8eae4bec6495006a5c03fc063db0d66b44cd6
Reviewed-on: https://go-review.googlesource.com/c/go/+/330629
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Matthew Dempsky [Thu, 24 Jun 2021 21:32:21 +0000 (14:32 -0700)]
[dev.typeparams] test: skip -G=3 testing under GOEXPERIMENT=unified
In normal build configurations, we test both -G=0 and -G=3 so that we
can test both typecheck and types2. However, GOEXPERIMENT=unified
always uses types2, so testing both is redundant.
Change-Id: I697d2ad916d8b17cfaf4f0b6b32eec380d4e7906
Reviewed-on: https://go-review.googlesource.com/c/go/+/330755
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Matthew Dempsky [Thu, 24 Jun 2021 19:57:20 +0000 (12:57 -0700)]
[dev.typeparams] cmd/compile: suppress liveness diagnostics of wrappers
Similar to the previous CL to suppress escape analysis diagnostics for
method wrappers, suppress liveness analysis diagnostics too. It's
hardly useful to know that all of a wrapper method's arguments are
live at entry.
Change-Id: I0d1e44552c6334ee3b454adc107430232abcb56a
Reviewed-on: https://go-review.googlesource.com/c/go/+/330749
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Dan Scales [Tue, 8 Jun 2021 01:13:15 +0000 (18:13 -0700)]
[dev.typeparams] cmd/compile: add derived types and subdictionaries to dictionaries
This is code in progress to generate the two main other types of entries
in dictionaries:
- all types in the instantiated function derived from the type
arguments (which are currently concrete, but will eventually be
gcshapes)
- pointers (i.e. mainly the unique name) to all needed sub-dictionaries
In order to generate these entries, we now generate cached information
gfInfo about generic functions/methods that can be used for creating the
instantiated dictionaries. We use the type substituter to compute the
right type args for instantiated sub-dictionaries.
If infoPrintMode is changed to true, the code prints out all the
information gathered about generic functions, and also the entries in
all the dictionaries that are instantiated. The debug mode also prints
out the locations where we need main dictionaries in non-instantiated
functions.
Other changes:
- Moved the dictionary generation back to stencil.go from reflect.go,
since we need to do extra analysis for the new dictionary entries. In
the process, made getInstantiation generate both the function
instantiation and the associated dictionary.
- Put in small change for now in reflect.go, so that we don't try
generate separate dictionaries for Value[T].get and the
auto-generated (*Value[T]).get. The auto-generated wrapper shouldn't really
need a dictionary.
- Detected, but not handling yet, a new case which needs
dictionaries - closures that have function params or captured
variables whose types are derived from type arguments.
- Added new tests in dictionaryCapture for use of method
value/expressions in generic functions and for mutually recursive
generic functions.
Change-Id: If0cbde8805a9f673a23f5ec798769c85c9c5359b
Reviewed-on: https://go-review.googlesource.com/c/go/+/327311
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Matthew Dempsky [Thu, 24 Jun 2021 17:44:39 +0000 (10:44 -0700)]
reflect: document that InterfaceData is a low-entropy RNG
Change-Id: Ie26b9060630e2e774ac23d8492eaaf785bfca6b7
Reviewed-on: https://go-review.googlesource.com/c/go/+/330709 Reviewed-by: Ian Lance Taylor <iant@golang.org>
Trust: Matthew Dempsky <mdempsky@google.com>
Matthew Dempsky [Thu, 24 Jun 2021 16:07:52 +0000 (09:07 -0700)]
[dev.typeparams] cmd/compile: skip escape analysis diagnostics for wrappers
This CL changes escape analysis to skip reporting diagnostics (at
least for parameter tagging) for generated wrappers.
We're inconsistent about when/where wrappers are generated, which made
errorcheck tests of escape analysis unnecessarily brittle to changes
in wrapper generation. This CL addresses this making errorcheck tests
only care about tagging of the actual functions themselves, not the
wrappers too.
Change-Id: Ia1a0b9dabee4d4162b05647f871db03b032c945a
Reviewed-on: https://go-review.googlesource.com/c/go/+/330689
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Bryan C. Mills [Thu, 24 Jun 2021 03:29:10 +0000 (23:29 -0400)]
cmd/go: don't try to add replaced versions that won't be selected
In Go 1.12, we added a heuristic to 'go mod tidy' to resolve packages
by adding replaced-but-not-required modules before falling back to
searching for modules from the network. Unfortunately, that heuristic
fails when the replaced version is already lower than the selected
version: adding such a module to the build list doesn't change the
selected version of that module, and so it doesn't make progress
toward resolving the missing package.
Fixes #46659
Change-Id: I75e2387d5290e769f6b0fa1231dcc4605db68597
Reviewed-on: https://go-review.googlesource.com/c/go/+/330432
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The previous code for walking the syntax AST to find declarations
needed to know whether a declaration appeared within block scope, but
syntax.Crawl (née syntax.Walk) made that somewhat awkward.
This CL simplifies it a little, taking advantage of syntax.Walk's
support for keeping per-subtree state.
Change-Id: I03c7da8c44bec40f88e983852dc6bbab7e6ac13c
Reviewed-on: https://go-review.googlesource.com/c/go/+/330549
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Bryan C. Mills [Wed, 23 Jun 2021 01:48:11 +0000 (21:48 -0400)]
net: remove hard-coded timeout in dialClosedPort test helper
The helper function claims that dialing a closed port should be
"nearly instantaneous", but that is empirically not the case on
OpenBSD or Windows. The tests do not appear to be particularly
sensitive to the exact upper bound otherwise, so let's just
remove the arbitrary latency assumption.
Fixes #46884
Change-Id: If00c9fdc3063da6aaf60d365d4a2ee2c94dc6df1
Reviewed-on: https://go-review.googlesource.com/c/go/+/330250
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Andy Pan [Wed, 23 Jun 2021 04:59:48 +0000 (12:59 +0800)]
time: handle invalid UTF-8 byte sequences in quote to prevent panic
Fixes #46883
Updates CL 267017
Change-Id: I15c307bfb0aaa2877a148d32527681f79df1a650
Reviewed-on: https://go-review.googlesource.com/c/go/+/330289 Reviewed-by: Kevin Burke <kev@inburke.com> Reviewed-by: Ian Lance Taylor <iant@golang.org>
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Bryan C. Mills [Wed, 23 Jun 2021 19:28:37 +0000 (15:28 -0400)]
cmd/go: search breadth-first instead of depth-first for test dependency cycles
When we are looking for a dependency cycle involving a specific
package, we need to keep track of visited packages in order to avoid
repeatedly traversing a cycle that does not involve that package.
If we're keeping track of all visited packages anyway, we're already
spending O(N) memory on the traversal, so we may as well use
breadth-first search. That not only keeps the bookkeeping simple, but
also guarantees that we will find a shortest path (rather than a
completely arbitrary one).
Fixes #45863
Change-Id: I810c7337857e42dcb83630abbdea75021554be45
Reviewed-on: https://go-review.googlesource.com/c/go/+/330430
Trust: Bryan C. Mills <bcmills@google.com> Reviewed-by: Jay Conrod <jayconrod@google.com>
Bryan C. Mills [Wed, 23 Jun 2021 01:24:57 +0000 (21:24 -0400)]
net: use absDomainName in the Windows lookupPTR test helper
The real net code uses subtle heuristics to transform a domain name
to its absolute form. Since lookupPTR isn't checking that
transformation specifically, it should use the real code instead of
using a different heuristic.
Fixes #46882
Change-Id: I503357e0f62059c37c359cd54b44d343c7d5ab2a
Reviewed-on: https://go-review.googlesource.com/c/go/+/330249
Trust: Bryan C. Mills <bcmills@google.com>
Trust: Alex Brainman <alex.brainman@gmail.com>
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siddharth [Tue, 22 Jun 2021 01:50:09 +0000 (21:50 -0400)]
os: enable TestFifoEOF on openbsd
The test successfully runs on currently supported versions (6.8 and
6.9) of openbsd.
Fixes #25877
Change-Id: I2694f08c5596b486453c2ac829f17b8bc455f828
Reviewed-on: https://go-review.googlesource.com/c/go/+/329732
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Dan Scales [Fri, 18 Jun 2021 21:09:21 +0000 (14:09 -0700)]
[dev.typeparams] Fix issues related to dictionaries and method calls with embedded fields
- Fix handling of method expressions with embedded fields. Fix an
incorrect lookup for method expressions, which have only the
top-level type (and don't have DOT operations for the embedded
fields). Add the embedded field dot operations into the closure.
- Don't need a dictionary and so don't build a closure if the last
embedded field reached in a method expression is an interface value.
- Fix methodWrapper() to use the computed 'dot' node in the
generic-only part of the code.
- For a method expression, don't create a generic wrapper if the last
embedded field reached before the method lookup is an interface.
Copied cmd/compile/internal/types2/testdata/fixedbugs/issue44688.go2 to
test/typeparam/issue44688.go, made it fully runnable (rather than just
for compilation), and added a bunch more tests.
Change-Id: I90c1aa569e1c7272e986c9d2ae683e553c3a38a1
Reviewed-on: https://go-review.googlesource.com/c/go/+/329550
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Trust: Dan Scales <danscales@google.com> Reviewed-by: Keith Randall <khr@golang.org>
Matthew Dempsky [Wed, 23 Jun 2021 19:08:42 +0000 (12:08 -0700)]
[dev.typeparams] cmd/compile/internal/syntax: go/ast-style walk API
This CL adds go/ast's Visitor, Walk, and Inspect functions to package
syntax. Having functions with the same API and semantics as their
go/ast counterparts reduces the mental load of context switching
between go/ast and syntax.
It also renames the existing Walk function into Crawl, and marks it as
a deprecated wrapper around Inspect. (I named it "Crawl" because it's
less functional than "Walk"... get it??)
There aren't that many callers to Crawl, so we can probably remove it
in the future. But it doesn't seem pressing, and I'm more concerned
about the risk of forgetting to invert a bool condition somewhere.
Change-Id: Ib2fb275873a1d1a730249c9cb584864cb6ec370e
Reviewed-on: https://go-review.googlesource.com/c/go/+/330429
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This is simple and general (and often necessary), but suboptimal in
some cases, such as this. Instead of evaluating the constant arguments
at the go/defer statement, and storing them into the closure context,
we can just keep them in the wrapped call expression.
This CL changes the code to instead generate (assuming f is a declared
function, not a function-typed variable):
_0 := g()
go func() { f(_0, "x", 42) }()
Change-Id: I2bdd4951e7ee93363e1656ecf9b5bd69a121c38a
Reviewed-on: https://go-review.googlesource.com/c/go/+/330332
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Matthew Dempsky [Wed, 23 Jun 2021 07:31:16 +0000 (00:31 -0700)]
[dev.typeparams] cmd/compile: escape analysis of method expression calls
This CL extends escape analysis to analyze function calls using method
expressions the same as it would a normal method call. That is, it now
analyzes "T.M(recv, args...)" the same as "recv.M(args...)".
This is useful because it means the frontend can eventually stop
supporting both function calls and method calls. We can simply desugar
method calls into function calls, like we already do in the backend to
simplify SSA construction.
Change-Id: I9cd5ec0d534cbcd9860f0014c86e4ae416920c26
Reviewed-on: https://go-review.googlesource.com/c/go/+/330331
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Matthew Dempsky [Tue, 22 Jun 2021 05:35:01 +0000 (22:35 -0700)]
[dev.typeparams] cmd/compile: move call logic from order.go to escape
This CL moves two bits of related code from order.go to escape
analysis:
1. The recognition of "unsafe uintptr" arguments passed to
syscall-like functions.
2. The wrapping of go/defer function calls in parameter-free function
literals.
As with previous CLs, it would be nice to push this logic even further
forward, but for now escape analysis seems most pragmatic.
A couple side benefits:
1. It allows getting rid of the uintptrEscapesHack kludge.
2. When inserting wrappers, we can move some expressions into the
wrapper and escape analyze them better. For example, the test
expectation changes are all due to slice literals in go/defer calls
where the slice is now constructed at the call site, and can now be
stack allocated.
Change-Id: I73679bcad7fa8d61d2fc52d4cea0dc5ff0de8c0c
Reviewed-on: https://go-review.googlesource.com/c/go/+/330330
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Matthew Dempsky [Tue, 22 Jun 2021 20:44:18 +0000 (13:44 -0700)]
[dev.typeparams] cmd/compile: desugar ORECOVER into ORECOVERFP
Currently ORECOVER is a single operation that both (1) calculates
the (logical) caller frame pointer and (2) calls runtime.gorecover.
This is normally fine, but it's inconvenient for regabi, which wants
to wrap "defer recover()" into "defer func() { recover() }" and
needs (1) and (2) to happen at different times.
The current solution is to apply walkRecover early to split it into
the two steps, but calling it during order is a minor layering
violation. It works well today because the order and walk phases are
closely related anyway and walkRecover is relatively simple, but it
won't work for go/defer wrapping earlier into the frontend.
This CL adds a new, lower-level ORECOVERFP primitive, which represents
just part (2); and OGETCALLER{PC,SP} primitives, which provide a way
to compute (1) in the frontend too.
OGETCALLERPC isn't needed/used today, but it seems worth including for
completeness. Maybe it will be useful at some point for intrinsifying
runtime.getcaller{pc,sp}, like we already do for runtime.getg.
Change-Id: Iaa8ae51e09306c45c147b6759a5b7c24dcc317ca
Reviewed-on: https://go-review.googlesource.com/c/go/+/330192
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This CLs adds new frontend ops that will be used in the next CL. Split
out separately so generated code is less distracting in the main CL.
Change-Id: I66125e0ec2217bfa05f7b0ea0bc99ada13f563f7
Reviewed-on: https://go-review.googlesource.com/c/go/+/330191
Trust: Matthew Dempsky <mdempsky@google.com>
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The current go/defer wrapping code goes to some length to clear
ClosureCalled when a function call will end up not being called
directly, and so it will need to use the context register.
But we already have a flag to indicate we need to use the context
register: Needctxt. The real issue here is just that buildssa was
using fn.ClosureCalled instead of fn.Needctxt.
Change-Id: Ic9f5f23b66eb467fc61fa84eacb45d46c54133d2
Reviewed-on: https://go-review.googlesource.com/c/go/+/330329
Trust: Matthew Dempsky <mdempsky@google.com>
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Matthew Dempsky [Wed, 23 Jun 2021 03:53:14 +0000 (20:53 -0700)]
[dev.typeparams] cmd/compile: refactor escape analysis of calls
This CL is a prep refactoring for an upcoming CL to move go/defer
wrapping into escape analysis. That CL is unfortunately unavoidably
complex and subtle, so this CL takes care of some more mundane
refactoring details.
Change-Id: Ifbefe1d522a8d57066646be09536437f42e7082c
Reviewed-on: https://go-review.googlesource.com/c/go/+/330251
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This flag is only needed to prevent the directClosureCall optimization
in walkCall, when called for walkGoDefer. But walkGoDefer don't need
to call walkCall: at this point in the compile, the call expression
isn't a real call anymore.
Instead, we just need to walkExpr on the function expression.
Change-Id: I8a5176cfe1bff53700cbd21ed1b479ebd9a839ad
Reviewed-on: https://go-review.googlesource.com/c/go/+/330271
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Trust: Matthew Dempsky <mdempsky@google.com>
CaptureName currently does a few things: checks if a variable needs to
be captured at all; checks if the variable has already been captured;
and creates and saves a new variable. This full suite of functionality
is useful for noder and irgen, but unified IR and other backend code
only has a need for the last feature.
This CL refactors CaptureName a little bit and extracts out
NewClosureVar as a function usable for callers that don't need the
extra features of CaptureName.
Change-Id: I8a67c6375e44babe53344bf78e335535c57f9607
Reviewed-on: https://go-review.googlesource.com/c/go/+/330193
Trust: Matthew Dempsky <mdempsky@google.com>
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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Rob Findley [Tue, 22 Jun 2021 14:13:54 +0000 (10:13 -0400)]
[dev.typeparams] go/types: adjust logic for method expression arg naming
CL 325369 improved this logic in types2. Port this improvement back to
go/types.
Change-Id: I5f859cbffd88bb3db09a81c2389269f7bd0869f9
Reviewed-on: https://go-review.googlesource.com/c/go/+/330069
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