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46993 Commits

Author SHA1 Message Date
yangwenmai
7af821a661 all: faster midpoint computation in binary search
On my machine (3.1 GHz Quad-Core Intel Core i7, macOS 10.15.7 10.15.7), go 1.15.6

benchstat:
name          old time/op  new time/op  delta
SearchInts-8  20.3ns ± 1%  16.6ns ± 6%  -18.37%  (p=0.000 n=9+10)

Change-Id: I346e5955fd6df6ce10254b22267dbc8d5a2b16c0
Reviewed-on: https://go-review.googlesource.com/c/go/+/279439
Reviewed-by: Ben Shi <powerman1st@163.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
Trust: Robert Griesemer <gri@golang.org>
2021-02-23 01:37:31 +00:00
Cherry Zhang
f113e9a14f cmd/dist: match goexperiment.regabi tag when GOEXPERIMENT is on
Change-Id: I5e4347dde6dcb49cd96608e4f67e54c7b3050bc2
Reviewed-on: https://go-review.googlesource.com/c/go/+/293851
Trust: Cherry Zhang <cherryyz@google.com>
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
2021-02-23 00:20:38 +00:00
Rob Findley
1126bbb82a go/parser: return ast.BadExpr for missing index operands
The parser was returning the indexed operand when a slice or index or
instance expression was missing any index arguments (as in the
expression `a[]`). This can result in returning an *ast.Ident for the
LHS of the (invalid) assignment `a[] = ...` -- in this case parsing the
LHS as just `a`. Unfortunately, as the indexed operand `a` has already
been resolved, this results in a panic for duplicate resolution.

Fix this by instead returning an ast.BadExpr. This can suppress some
subsequent errors from the typechecker, but those errors may or may not
be correct anyway. Other interpretations, such as an *ast.IndexExpr with
bad or missing X, run into potential misinterpretations downstream (both
caused errors in go/types and/or gopls).

Fixes #44504

Change-Id: I5ca8bed4a1861bcc7db8898770b08937110981d4
Reviewed-on: https://go-review.googlesource.com/c/go/+/295151
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>
2021-02-22 23:43:15 +00:00
Cherry Zhang
1678829d95 cmd/compile: correctly use X15 to zero frame
In CL 288093 we reserve X15 as the zero register and use that to
zero values. It only covered zeroing generated in SSA but missed
zeroing the frame generated late in the compilation. The latter
still uses X0, but now DUFFZERO expects X15, so it doesn't
actually zero the frame. Change it to use X15.

Should fix #44333.

Change-Id: I239d2b78a5f6468bc86b70aecdd294045311759f
Reviewed-on: https://go-review.googlesource.com/c/go/+/295210
Trust: Cherry Zhang <cherryyz@google.com>
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
2021-02-22 23:37:09 +00:00
cui
094048b938 cmd/compile/internal: loop opt
Change-Id: I5fe767237b8046934e9b0f33bd3dafabdb727dd6
GitHub-Last-Rev: 94fea3d572
GitHub-Pull-Request: golang/go#44384
Reviewed-on: https://go-review.googlesource.com/c/go/+/293809
Reviewed-by: Robert Griesemer <gri@golang.org>
Trust: Robert Griesemer <gri@golang.org>
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
2021-02-22 22:55:23 +00:00
zhengjianxun
1391d4142c fix typo in issue16760.go
fix typo in issue16760.go, unconditinally ->  unconditionally

Change-Id: I3a04fbcb23395c562821b35bc2d81cfaec0bc1ed
GitHub-Last-Rev: 5ce52a3deb
GitHub-Pull-Request: golang/go#44495
Reviewed-on: https://go-review.googlesource.com/c/go/+/294969
Trust: Alberto Donizetti <alb.donizetti@gmail.com>
Reviewed-by: zhengjianxun <zhuimengshaonian04@gmail.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
2021-02-22 22:53:51 +00:00
Josh Bleecher Snyder
04903476fe cmd/compile: reject some rare looping CFGs in shortcircuit
One CFGs that shortcircuit looks for is:
 
p   q
 \ /
  b
 / \
t   u

The test case creates a CFG like that in which p == t.
That caused the compiler to generate a (short-lived) invalid phi value.

Fix this with a relatively big hammer: Disallow single-length loops entirely.
This is probably overkill, but it such loops are very rare.
This doesn't change the generated code for anything in std.

It generates worse code for the test case:
It no longer compiles the entire function away.

Fixes #44465

Change-Id: Ib8cdcd6cc9d7f48b4dab253652038ace24eae152
Reviewed-on: https://go-review.googlesource.com/c/go/+/295130
Trust: Josh Bleecher Snyder <josharian@gmail.com>
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Keith Randall <khr@golang.org>
2021-02-22 20:27:09 +00:00
Josh Bleecher Snyder
87e984ab29 test: add test for issue 38698
It was fixed by CL 294289, for #44378.
This is a different style of test that uses
line directives instead of extremely long lines.

Fixes #38698.

Change-Id: I50a1585030978b35fffa9981d6ed96b99216dc3e
Reviewed-on: https://go-review.googlesource.com/c/go/+/295129
Trust: Josh Bleecher Snyder <josharian@gmail.com>
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Than McIntosh <thanm@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
2021-02-22 20:00:00 +00:00
Paul E. Murphy
b2bdadfe88 cmd/internal: cleanup ppc64 optab structure
This is no-functionality change to begin the process of supporting
more than 6 operands.

This rewrites the table to use named arguments, and removes default
initialized argument values.  The following sed regexes rewrote the table:

  s/{\([^,]*\),\([^,]*\),\([^,]*\),\([^,]*\),\([^,]*\),\([^,]*\),\([^,]*\),\([^,]*\)}/{as:\1,a1:\2,a2:\3,a3:\4,a4:\5,type_:\6,size:\7,param:\8}
  s/a[1-4]: C_NONE, //g
  s/, param: 0//

Change-Id: I5f4de9da75f2fb3964d625d6b4e2f1ce1e29cc47
Reviewed-on: https://go-review.googlesource.com/c/go/+/294189
Trust: Lynn Boger <laboger@linux.vnet.ibm.com>
Run-TryBot: Lynn Boger <laboger@linux.vnet.ibm.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Carlos Eduardo Seo <carlos.seo@linaro.org>
2021-02-22 18:51:18 +00:00
Than McIntosh
0f66fb7b85 go/internal/gccgoimporter: fix up gccgo installation test
Change the TestInstallationImporter testpoint to query type
information for sort.Search instead of sort.Ints. The latter function
changed recently (1.16 timeframe), parameter "a" is now "x". A better
candidate for this sort of query is sort.Search, which has been stable
for a while.

Fixes #44425.

Change-Id: I314476eac0b0802f86f5cbce32195cab2926db83
Reviewed-on: https://go-review.googlesource.com/c/go/+/294290
Trust: Than McIntosh <thanm@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2021-02-21 02:25:41 +00:00
Than McIntosh
e78e04ce39 cmd/compile: fix panic in DWARF-gen handling obfuscated code
DWARF generation uses variable source positions (file/line/col) as a
way to uniquely identify locals and parameters, as part of the process
of matching up post-optimization variables with the corresponding
pre-optimization versions (since the DWARF needs to be in terms of the
original source constructs).

This strategy can run into problems when compiling obfuscated or
machine-generated code, where you can in some circumstances wind up
with two local variables that appear to have the same name, file,
line, and column. This patch changes DWARF generation to skip over
such duplicates as opposed to issuing a fatal error (if an
obfuscation tool is in use, it is unlikely that a human being will be
able to make much sense of DWARF info in any case).

Fixes #44378.

Change-Id: I198022d184701aa9ec3dce42c005d29b72d2e321
Reviewed-on: https://go-review.googlesource.com/c/go/+/294289
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Jeremy Faller <jeremy@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Trust: Than McIntosh <thanm@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
2021-02-21 02:25:26 +00:00
Ian Lance Taylor
03d36d8198 syscall: add explicit ios build tag
This permits analysis of the syscall package by tools built with
older versions of Go that do not recognize ios as a GOOS.

Fixes #44459

Change-Id: I79cec2ffe0dbcbc2dc45a385e556dc9e62033125
Reviewed-on: https://go-review.googlesource.com/c/go/+/294634
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
2021-02-20 19:56:50 +00:00
Alberto Donizetti
40656f3a75 doc/1.16: fix link to fs.FileInfo
Updates #40700

Change-Id: Ifff622ccadaa31c0c0684c3c695aadcaa2305623
Reviewed-on: https://go-review.googlesource.com/c/go/+/294669
Trust: Alberto Donizetti <alb.donizetti@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2021-02-20 19:33:34 +00:00
Russ Cox
d4b2638234 all: go fmt std cmd (but revert vendor)
Make all our package sources use Go 1.17 gofmt format
(adding //go:build lines).

Part of //go:build change (#41184).
See https://golang.org/design/draft-gobuild

Change-Id: Ia0534360e4957e58cd9a18429c39d0e32a6addb4
Reviewed-on: https://go-review.googlesource.com/c/go/+/294430
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2021-02-20 03:54:50 +00:00
Russ Cox
0625460f79 cmd/vet: update buildtag check for //go:build lines
Brings in golang.org/x/tools@2363391a
and adjusts, adds cmd/vet tests accordingly.

Part of //go:build change (#41184).
See https://golang.org/design/draft-gobuild

This brings in the new //go:build checks in cmd/vet.

Change-Id: I8a9735cc014171691012b307ec30e94c81aadfe1
Reviewed-on: https://go-review.googlesource.com/c/go/+/240609
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Jay Conrod <jayconrod@google.com>
2021-02-20 03:54:48 +00:00
Russ Cox
9fd6cc105d go/printer: canonicalize //go:build and // +build lines while formatting
Part of //go:build change (#41184).
See https://golang.org/design/draft-gobuild

Gofmt and any other go/printer-using program will now:

 - move //go:build and //+build lines to the appropriate file location
 - if there's no //go:build line, add one derived from the // +build lines
 - if there is a //go:build line, recompute and replace any // +build lines
   to match what the //go:build line says

For Go 1.17.

Change-Id: Ide5cc3b4a07507ba9ed6f8b0de846e840876f49f
Reviewed-on: https://go-review.googlesource.com/c/go/+/240608
Trust: Russ Cox <rsc@golang.org>
Trust: Jay Conrod <jayconrod@google.com>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Jay Conrod <jayconrod@google.com>
2021-02-20 03:54:46 +00:00
Russ Cox
5b76343a10 go/build: prefer //go:build over // +build lines
Part of //go:build change (#41184).
See https://golang.org/design/draft-gobuild

- Reject files with multiple //go:build lines.
- If a file has both //go:build and // +build lines, only use the //go:build line.
- Otherwise fall back to // +build lines
- Use go/build/constraint for parsing both //go:build and // +build lines.

For Go 1.17.

Change-Id: I32e2404d8ce266230f767718dc7cc24e77b425e8
Reviewed-on: https://go-review.googlesource.com/c/go/+/240607
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Jay Conrod <jayconrod@google.com>
2021-02-20 03:54:43 +00:00
Russ Cox
a8942d2cff runtime/pprof: disable TestMorestack on darwin/arm64
Something is weird about darwin and TestMorestack,
but it is only manifesting on arm64 and race+amd64.
Disable for now.

Change-Id: I5862372fdd0b5ffae802fdefb65b2aa04e266fcc
Reviewed-on: https://go-review.googlesource.com/c/go/+/294409
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
2021-02-20 00:54:44 +00:00
Robert Griesemer
078f08f0ee spec: every type has a method set (minor clarification)
The spec states that a type "may" have a method set associated with it.
Yet every type has a method set, which may be empty. This is clarified
later in the same paragraph. Be clear in the first sentence as well.

Per the suggestion from https://github.com/DQNEO.

Fixes #44318.

Change-Id: I6097b1c7062853e404b7fead56d18a7f9c576fc3
Reviewed-on: https://go-review.googlesource.com/c/go/+/292853
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2021-02-20 00:01:22 +00:00
Rob Findley
26713b5fef go/types: don't write during sanitizeInfo if nothing has changed
In its final phase, the typechecker walks the types it produces to
ensure that no unexpanded type instances leak through the API. However,
this also walks shared types (such as those in the universe scope),
resulting in a potential data race during concurrent typechecking
passes.

Fix this by being careful not to write if nothing needs to be changed.
Since any shared types should already be sanitized, this should
eliminate data races.

For #44434

Change-Id: Iadb2e78863efe0e974e69a00e255f26cfaf9386a
Reviewed-on: https://go-review.googlesource.com/c/go/+/294411
Trust: Robert Findley <rfindley@google.com>
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Findley <rfindley@google.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
2021-02-19 23:22:33 +00:00
Robert Griesemer
9a99515c8f all: REVERSE MERGE dev.typeparams (7cdfa49) into master
This commit is a REVERSE MERGE.
It merges dev.typeparams back into its parent branch, master.
This marks the end of development on dev.typeparams.

Merge List:

+ 2021-02-19 7cdfa4969a [dev.typeparams] all: merge master (06b86e9) into dev.typeparams
+ 2021-02-19 6521c7b378 [dev.typeparams] cmd/compile/internal/types2: resolve decl cycle the same way as in go/types
+ 2021-02-19 dfe0ef961b [dev.typeparams] go/types, types2: revert fancy struct printing (fixes x/tools tests)
+ 2021-02-19 2f37939a21 go/parser: improve error recovery from invalid selector exprs
+ 2021-02-19 8654db4555 [dev.typeparams] go/types: adjust printing of embedded struct fields (fixes x/tools/cmd/guru tests)
+ 2021-02-19 47e4b0739e Merge "[dev.typeparams] all: merge master (eb98272) into dev.typeparams" into dev.typeparams
+ 2021-02-18 a789be7814 [dev.typeparams] cmd/compile: use new converter functions rather than methods (fix build)
+ 2021-02-18 20050a15fe [dev.typeparams] cmd/compile:  support generic types (with stenciling of method calls)
+ 2021-02-18 e7493a9c74 [dev.typeparams] all: merge master (eb98272) into dev.typeparams
+ 2021-02-18 2ff1e05a4c [dev.typeparams] all: update parent repository
+ 2021-02-18 8960ce7735 [dev.typeparams] cmd/compile/internal/types2: minor adjustments to match go/types more closely
+ 2021-02-18 6f3878b942 [dev.typeparams] cmd/compile/internal/types: review of typestring_test.go
+ 2021-02-18 d6bdd1aeef [dev.typeparams] cmd/compile/internal/types: review of typestring.go
+ 2021-02-18 c2314babb8 [dev.typeparams] cmd/compile/internal/types: review of type.go
+ 2021-02-18 099374b55e [dev.typeparams] cmd/compile/internal/types2: remove Type.Under method in favor of function
+ 2021-02-18 653386a89a [dev.typeparams] cmd/compile/internal/types2: replace Named, TypeParam methods with functions
+ 2021-02-18 5e4da8670b [dev.typeparams] cmd/compile/internal/types2: use converter functions rather than methods
+ 2021-02-18 5ecb9a7887 [dev.typeparams] go/types: use a new ast.ListExpr for multi-type instances
+ 2021-02-18 7b679617f3 [dev.typeparams] go/types: conversions to type parameters are not constant
+ 2021-02-17 f5d0c653e6 [dev.typeparams] merge master (2f0da6d) into dev.typeparams
+ 2021-02-17 e196cb8258 [dev.typeparams] cmd/dist:  disable -G=3 on the std go tests for now
+ 2021-02-12 a06bd9fecb [dev.typeparams] cmd/compile/internal/types: review of resolver_test.go
+ 2021-02-12 042f88fe30 [dev.typeparams] cmd/compile/internal/types: review of errors_test.go
+ 2021-02-12 0abd7b768b [dev.typeparams] cmd/compile/internal/types: review of universe.go
+ 2021-02-12 1b6f0bf1b2 [dev.typeparams] cmd/compile/internal/types: review of sizes_test.go
+ 2021-02-12 1758780181 [dev.typeparams] cmd/compile/internal/types: review of sizes.go
+ 2021-02-12 3aee461d5c [dev.typeparams] cmd/compile/internal/types: review of return.go
+ 2021-02-12 7428318af6 [dev.typeparams] cmd/compile/internal/types: review of object_test.go
+ 2021-02-12 b20f9e2da1 [dev.typeparams] cmd/compile/internal/types: review of object.go
+ 2021-02-12 20746b2f37 [dev.typeparams] cmd/compile/internal/types: review of labels.go
+ 2021-02-12 bab3461123 [dev.typeparams] cmd/compile/internal/types: review of infer.go
+ 2021-02-12 9168590977 [dev.typeparams] cmd/compile/internal/types: review of builtin_test.go
+ 2021-02-12 f1777cf84c [dev.typeparams] cmd/compile/internal/types: review of builtin.go
+ 2021-02-12 0f43973b4b [dev.typeparams] go/types: make predeclared "any" alias for interface{}
+ 2021-02-12 58758e0a21 [dev.typeparams] go/types: better error message for invalid ... use
+ 2021-02-11 c0aa7bd760 [dev.typeparams] cmd/compile: small fixes for stenciling
+ 2021-02-10 df23540dde [dev.typeparams] cmd/gofmt: add the -G flag to allow generic code
+ 2021-02-10 ddec18cf82 [dev.typeparams] cmd/compile/internal/types2: overlapping embedded interfaces requires go1.14
+ 2021-02-10 fdf3496fcc [dev.typeparams] cmd/compile:  make type conversions by type parameters work
+ 2021-02-10 12e15d430d [dev.typeparams] cmd/compile: handle calling a method on a type param in stenciling
+ 2021-02-08 ca18c42054 [dev.typeparams] merge dev.regabi (618e3c1) into dev.typeparams
+ 2021-02-08 a360eeb528 [dev.typeparams] cmd/compile/internal/types2: conversions to type parameters are not constant
+ 2021-02-08 0fbde54ea6 [dev.typeparams] cmd/compile: allow generic funcs to call other generic funcs for stenciling
+ 2021-02-05 dcb5e0392e [dev.typeparams] cmd/compile: add stenciling of simple generic functions
+ 2021-02-04 f37b0c6c12 [dev.typeparams] cmd/compile/internal/types2: type alias decl requires go1.9
+ 2021-02-04 721488498a [dev.typeparams] cmd/compile: pass -lang flag value to new type checker
+ 2021-02-04 1ff2fdaaf1 [dev.typeparams] cmd/compile/internal/types2: add support for language version checking
+ 2021-02-04 370e9f5843 [dev.typeparams] cmd/compile/internal/types2: use 512 bits as max. integer precision
+ 2021-02-04 ca2f152893 [dev.typeparams] go/types: add missing test from dev.go2go
+ 2021-02-03 dc122c7a9c [dev.typeparams] test: exclude a failing test again (fix 32bit builds)
+ 2021-02-03 c910fd7b77 [dev.typeparams] cmd/compile: refuse excessively long constants
+ 2021-02-03 3db6e18468 [dev.typeparams] test: enable more errorcheck tests
+ 2021-02-03 bb53a5ad43 [dev.typeparams] cmd/compile/internal/importer: adjust importer to match compiler importer
+ 2021-02-03 3f845b3b45 [dev.typeparams] cmd/compile: deal with inferred type arguments
+ 2021-02-03 e633f343ba [dev.typeparams] cmd/compile:  add OFUNCINST/OTYPEINST nodes for generic func/type instantiation
+ 2021-02-02 0d2d6c7464 [dev.typeparams] all: merge dev.regabi (23b0c1f) into dev.typeparams
+ 2021-02-02 3d5c715bf2 [dev.typeparams] Handling multiple type arguments for call via new node OLIST
+ 2021-02-01 13a7412983 [dev.typeparams] Parse a generic type arg for generic function call
+ 2021-01-30 0aafd69124 [dev.typeparams] cmd/compile: start translating type params in noder2
+ 2021-01-30 a59cb5109d [dev.typeparams] cmd/compile/internal/types2: handle untyped constant arithmetic overflow
+ 2021-01-29 507e641963 [dev.typeparams] cmd/compile/internal/typecheck: declutter generated builtin.go (cleanup)
+ 2021-01-28 2440dd457a [dev.typeparams] cmd/compile:  start adding info needed for typeparams in types & ir
+ 2021-01-28 c0bf904ddf [dev.typeparams] cmd/compile/internal/types2: translate syntax to token constants via tables
+ 2021-01-28 f7d1c5990b [dev.typeparams] cmd/compile/internal/types2: must not import a package called "init"
+ 2021-01-27 217a461f56 [dev.typeparams] cmd/compile/internal/types2: report unused packages in source order
+ 2021-01-26 08a598f8c1 [dev.typeparams] cmd/compile: fix MethodExpr handling with embedded fields
+ 2021-01-26 cecc1dfcba [dev.typeparams] test: enable excluded test fixedbugs/issue7742.go
+ 2021-01-26 e48d7d3b21 [dev.typeparams] go/constant: faster match implementation
+ 2021-01-26 d39685e5e9 [dev.typeparams] go/constant: choose internal float representations more consistently
+ 2021-01-25 34704e374f [dev.typeparams] all: merge dev.regabi (5e4a0cd) into dev.typeparams
+ 2021-01-26 c97af0036b [dev.typeparams] cmd/compile: force untyped constants from types2 to expected kind
+ 2021-01-25 3663a437a7 [dev.typeparams] go/constant: in ToFloat, convert to rational numbers, not floats
+ 2021-01-25 3432d24bab Merge "[dev.typeparams] all: merge dev.regabi (063c72f) into dev.typeparams" into dev.typeparams
+ 2021-01-25 493eb6e6ec [dev.typeparams] cmd/compile: fix -G=3 handling of blank methods
+ 2021-01-25 13f02018af [dev.typeparams] test: enable more errorcheck tests w/ -G=3
+ 2021-01-24 6d8d118762 [dev.typeparams] all: merge dev.regabi (063c72f) into dev.typeparams
+ 2021-01-24 9456804e86 [dev.typeparams] test: fix excluded files lookup so it works on Windows
+ 2021-01-23 7947df436d [dev.typeparams] test: set -G=3 and enable more errorcheck tests in run.go
+ 2021-01-23 a49e941027 [dev.typeparams] cmd/compile/internal/types2: remove MethodSet code - not used by types2
+ 2021-01-23 5347241b5e [dev.typeparams] cmd/compile/internal/types2: use same sort criteria for methods as compiler
+ 2021-01-23 2b95c28b18 [dev.typeparams] cmd/compile: refactor SelectorExpr code into helpers
+ 2021-01-23 1946a77e69 Merge "[dev.typeparams] all: merge dev.regabi (7e0a81d) into dev.typeparams" into dev.typeparams
+ 2021-01-23 6923019a71 [dev.typeparams] cmd/compile/internal/types2: factor out sorting of methods
+ 2021-01-22 6e46c8fbb5 [dev.typeparams] all: merge dev.regabi (7e0a81d) into dev.typeparams
+ 2021-01-22 e4ef30a667 [dev.typeparams] cmd/compile: refactor irgen's handling of ":="
+ 2021-01-22 626406b703 [dev.typeparams] go/types: import api_test.go changes from dev.go2go
+ 2021-01-22 12cd9cf7e0 [dev.typeparams] cmd/compile: disambiguate OXDOT in noder using types2 Selection info
+ 2021-01-22 f8654579cd [dev.typeparams] cmd/compile/internal/types2: adjust errors in branch checking code, fix a bug
+ 2021-01-21 18bd7aa625 [dev.typeparams] cmd/compile: use nil instead of syntax.ImplicitOne
+ 2021-01-21 2427f6e6c0 [dev.typeparams] cmd/compile: directly set some simple expression types
+ 2021-01-21 455c29af83 [dev.typeparams] cmd/compile/internal/types2: convert untyped arguments to delete
+ 2021-01-21 f03f934ede [dev.typeparams] cmd/compile/internal/types2: make predeclared "any" alias for interface{}
+ 2021-01-20 0f054c5be0 [dev.typeparams] cmd/dist: add -G=3 test coverage
+ 2021-01-20 89ec17be9a [dev.typeparams] cmd/compile: simplify how irgen handles qualified idents
+ 2021-01-20 fa01ade41e [dev.typeparams] go/types: add tests from dev.go2go
+ 2021-01-20 734cb8be0a [dev.typeparams] go/types: refactor untyped conversion for typeparams
+ 2021-01-20 d8796b5670 [dev.typeparams] cmd/compile/internal/types2: report type of nil based on context
+ 2021-01-19 48a3cb399d [dev.typeparams] go/types: fix some merge errors in call.go
+ 2021-01-19 3e15bf7716 [dev.typeparams] go/types: don't modify Named.underlying in validType
+ 2021-01-19 f38f862417 [dev.typeparams] go/types: strip annotations from errors
+ 2021-01-19 2e64511ac9 [dev.typeparams] go/types: unify methods in missingMethod
+ 2021-01-19 958927c824 [dev.typeparams] go/parser: error for type instances without ParseTypeParams
+ 2021-01-19 90bfc73071 [dev.typeparams] cmd/compile: cache mapped types during irgen
+ 2021-01-19 3c0a39c964 [dev.typeparams] cmd/compile/internal/types: minor fixes/cleanups around testing
+ 2021-01-15 502198c8dc [dev.typeparams] cmd/compile/internal/types2: consistently report nil type as "untyped nil"
+ 2021-01-14 82c3f0a358 [dev.typeparams] cmd/compile/internal/types2: untyped shift counts must fit into uint
+ 2021-01-14 67bf62d939 [dev.typeparams] cmd/compile/internal/types2: better error message for invalid ... use
+ 2021-01-14 ef5285fbd0 [dev.typeparams] cmd/compile: add types2-based noder
+ 2021-01-12 f065ff221b [dev.typeparams] all: merge dev.regabi (d9acf6f) into dev.typeparams
+ 2021-01-12 099599662d [dev.typeparams] cmd/compile: refactor import logic
+ 2021-01-12 106aa941df [dev.typeparams] cmd/compile: refactor DWARF scope marking
+ 2021-01-12 6a56c6c870 [dev.typeparams] go/types: import dev.go2go changes to check tests
+ 2021-01-11 9e746e4255 [dev.typeparams] cmd/compile: refactor varEmbed logic
+ 2021-01-11 3e1a87ac2a [dev.typeparams] cmd/compile: extract posMap from noder
+ 2021-01-11 2e8f29b79d [dev.typeparams] cmd/compile: add types2.Sizes implementation
+ 2021-01-11 44d1a8523a [dev.typeparams] cmd/compile/internal/types2: fixes for all.bash
+ 2021-01-11 8123bc90b8 [dev.typeparams] cmd/go: relax test expectation
+ 2021-01-11 8c5aa42c79 [dev.typeparams] cmd/compile: calculate variable sizes in walk
+ 2021-01-11 1ce0854157 [dev.typeparams] import stmt changes from dev.go2go
+ 2021-01-11 eb53a6c7cf [dev.typeparams] import operand.go changes from dev.go2go
+ 2021-01-11 81cd99858d [dev.typeparams] go/types: import expr changes from dev.go2go
+ 2021-01-08 822aeacd9e [dev.typeparams] cmd/compile/internal/syntax: remove ShortString, use String instead
+ 2021-01-08 d017a1b649 [dev.typeparams] cmd/compile/internal/syntax: add Walk node vistor from types2
+ 2021-01-08 7903214fcc [dev.typeparams] cmd/compile/internal/syntax: add ShortString tests
+ 2021-01-08 0aede1205b [dev.typeparams] cmd/compile/internal/types2: use syntax printer to print expressions
+ 2021-01-08 934f9dc0ef [dev.typeparams] cmd/compile/internal/syntax: clean up node printing API
+ 2021-01-07 5b9152de57 [dev.typeparams] all: merge dev.regabi (cb05a0a) into dev.typeparams
+ 2021-01-07 7e689f86e3 [dev.typeparams] go/types: move use and useLHS to match dev.go2go
+ 2021-01-06 d76cefed1f [dev.typeparams] go/types: remove disabled code related to type lists
+ 2021-01-06 0e286579c5 [dev.typeparams] go/types: import typexpr.go from dev.go2go
+ 2021-01-06 9546596d77 [dev.typeparams] cmd/compile/internal/types2: remove disabled code related to type lists
+ 2021-01-06 196102d046 [dev.typeparams] cmd/compile/internal/types2: review of typexpr.go
+ 2021-01-05 a8fe098a12 [dev.typeparams] all: merge dev.regabi (77365c5) into dev.typeparams
+ 2020-12-28 a800acaae1 [dev.typeparams] all: merge dev.regabi (07569da) into dev.typeparams
+ 2020-12-27 dd40bbc57b [dev.typeparams] cmd/compile: re-enable internal/types2 test
+ 2020-12-23 d99dd17827 [dev.typeparams] all: merge dev.regabi (37f138d) into dev.typeparams
+ 2020-12-22 8b1fbd8215 [dev.typeparams] all: merge dev.regabi (6d03cde) into dev.typeparams
+ 2020-12-22 23922cf83b [dev.typeparams] all: merge dev.regabi (d1d1099) into dev.typeparams
+ 2020-12-23 788dad53c5 [dev.typeparams] cmd/compile/internal/types2: disable external test temporarily
+ 2020-12-22 91cc51e005 [dev.typeparams] all: merge dev.regabi (ec741b0) into dev.typeparams
+ 2020-12-22 e02a007ffd [dev.typeparams] codereview.cfg: add config for dev.typeparams
+ 2020-12-22 41e7901ca4 [dev.typeparams] cmd/compile/internal/types2: report error for invalid main function signature
+ 2020-12-22 53c4c17b09 [dev.typeparams] all: merge dev.regabi into dev.typeparams
+ 2020-12-17 060cdbc7b5 [dev.typeparams] go/types: import object resolution from dev.go2go
+ 2020-12-17 c4f0da5750 [dev.typeparams] cmd/compile/internal/types2: remove code for implicit type arguments
+ 2020-12-16 068dd0470b [dev.typeparams] cmd/compile/internal/syntax: don't panic when providing -verify
+ 2020-12-16 7909d6ec28 [dev.typeparams] cmd/compile/internal/syntax: type parameters must always be named
+ 2020-12-16 3b5918c757 [dev.typeparams] cmd/compile/internal/types2: review of predicates.go
+ 2020-12-16 09abd23d9e [dev.typeparams] go/types: import predicates.go from dev.go2go
+ 2020-12-16 f38da2cbb6 [dev.typeparams] cmd/compile/internal/types2: review of unify.go
+ 2020-12-16 ceb77db24f [dev.typeparams] go/types: import some support functions from dev.go2go
+ 2020-12-15 a4d4c10340 [dev.typeparams] go/types: import lookup logic from dev.go2go
+ 2020-12-15 1306435103 [dev.typeparams] go/types: import changes to types.Info from dev.go2go
+ 2020-12-15 6b18081d01 [dev.typeparams] cmd/compile/internal/types2: don't crash if import path is missing
+ 2020-12-15 14e4267c34 [dev.typeparams] cmd/compile/internal/types2: report error for invalid (but empty) expr switch
+ 2020-12-15 96999296e6 [dev.typeparams] go/types: import unify.go and infer.go from dev.go2go
+ 2020-12-15 5aff757efc [dev.typeparams] cmd/compile/internal/gc: provide types2 selection info to noder
+ 2020-12-14 c8e73489c3 go/types: import instance.expand and subst.go from dev.go2go
+ 2020-12-14 3a912f279f [dev.typeparams] cmd/compile/internal/syntax: export NewName and use it
+ 2020-12-14 8ec9e89000 [dev.typeparams] cmd/compile/internal/types2: fix stray ')' in error
+ 2020-12-14 8fe8e29c9f [dev.typeparams] cmd/compile/internal/types2: report error for invalid type expression
+ 2020-12-14 f8930a2413 [dev.typeparams] cmd/compile/internal/types2: report invalid ... in conversions
+ 2020-12-14 5aca6e7857 [dev.typeparams] test: finish triaging all outstanding failing tests
+ 2020-12-14 df58f3368e [dev.typeparams] cmd/compile/internal/types2: don't report two errors for bad strings
+ 2020-12-14 91803a2df3 [dev.typeparams] merge: merge branch 'dev.regabi' into 'dev.typeparams'
+ 2020-12-11 a20021227e [dev.typeparams] cmd/compile/internal/types2: bring over subst.go changes from go/types
+ 2020-12-10 ddf44904f1 [dev.typeparams] test: exclude 32bit-specific test that fails on 32bit platforms (fix build)
+ 2020-12-10 dbce27d29c [dev.typeparams] cmd/compile/internal/types2: report correct line number for missing key
+ 2020-12-09 edf80c4209 [dev.typeparams] cmd/compile/internal/types2: adjusted more error messages for compiler
+ 2020-12-09 43c7b214db [dev.typeparams] cmd/compile/internal/types2: adjusted qualified identifier error message for compiler
+ 2020-12-09 6812eae2e2 [dev.typeparams] cmd/compile/internal/types2: adjust init cycle error message for compiler
+ 2020-12-09 810957b155 [dev.typeparams] cmd/compile/internal/types2: adjusted array error message for compiler
+ 2020-12-09 c32566c336 [dev.typeparams] cmd/compile/internal/types2: avoid endless recursion in Comparable predicate
+ 2020-12-08 6015c4e543 [dev.typeparams] go/*: add TODOs from CLs importing dev.go2go changes
+ 2020-12-08 b6e678573d [dev.typeparams] go/types: import universe changes from dev.go2go
+ 2020-12-08 14dc2d2345 [dev.typeparams] go/types: import the Type API from dev.go2go
+ 2020-12-07 cd15a48036 [dev.typeparams] cmd/compile/internal/types2: correct error position for inherited const init expression
+ 2020-12-04 02820d61a9 [dev.typeparams] test: enable some more errorcheck tests
+ 2020-12-03 9ff27e9fad [dev.typeparams] test: run all errorcheck tests that pass compiler with -G flag
+ 2020-12-03 7a1aa7dfaf [dev.typeparams] test: adjust more test cases to match compiler -G output
+ 2020-12-03 07d32c8183 [dev.typeparams] cmd/compile/internal/types: adjust some error messages to match the compiler
+ 2020-12-03 6b4da14dd3 [dev.typeparams] cmd/compile: provide scaffolding to get types2 types during noding
+ 2020-12-02 72cc2353f0 [dev.typeparams] go/printer: adapt changes from dev.go2go
+ 2020-12-02 ab18125567 [dev.typeparams] cmd/compile/internal/types2: no "declared but not used" errors for invalid var decls
+ 2020-12-02 036245862a [dev.typeparams] cmd/compile/internal/types2: set compiler error message for undeclared variable
+ 2020-12-01 bdc4ffe9a8 [dev.typeparams] cmd/compile/internal/types2: add Config.IgnoreBranches flag
+ 2020-12-01 72ad2f44ea [dev.typeparams] test: add scaffolding to run.go to check compiler with -G flag
+ 2020-12-01 87bc85a846 [dev.typeparams] cmd/compile/internal/types2: adjustments toward matching compiler error messages
+ 2020-12-01 fbc4c6a3ae [dev.typeparams] cmd/compile/internal/types2: remove support for type parameter pointer designation
+ 2020-11-25 ba9c35aa12 [dev.typeparams] merge dev.regabi 40f5bc4d55 into dev.typeparams
+ 2020-11-25 5c2e14872c [dev.typeparams] merge dev.regabi 41f3af9d04 into dev.typeparams
+ 2020-11-25 2c25cd5ba7 [dev.typeparams] cmd/compile/internal/types2: a type parameter is a valid type case in a type switch
+ 2020-11-24 0fb733b7f7 [dev.typeparams] go/parser: support the ParseTypeParams mode
+ 2020-11-24 b56762129e [dev.typeparams] import go2go changes to parse type parameters
+ 2020-11-24 a324aebb7d [dev.typeparams] go/types, cmd/compile/internal/types2: fix incorrect string(int) conversion (regression)
+ 2020-11-20 8fbdacf64c [dev.typeparams] cmd/compile/internal/types2: report constant overflow in binary ops
+ 2020-11-19 b1ae0a0646 [dev.typeparams] Merge branch 'master' into dev.typeparams
+ 2020-11-19 0123c9b321 [dev.typeparams] cmd/compile/internal/types2: report an error for invalid constant values
+ 2020-11-18 2140049172 [dev.typeparams] cmd/compile/internal/types2: port of https://golang.org/cl/270957
+ 2020-11-11 6877ee1e07 [dev.typeparams] cmd/compile: use existing findpkg algorithm when importing through types2
+ 2020-11-03 165ceb09f9 [dev.typeparams] merge master into dev.typeparams
+ 2020-10-28 41ff51ae00 [dev.typeparams] cmd/compile/internal/types2: review of scopes.go
+ 2020-10-27 9392b82919 [dev.typeparams] cmd/compile/internal/types: review of objset.go
+ 2020-10-27 c32ac6c15f [dev.typeparams] cmd/compile/internal/types: review of selection.go
+ 2020-10-27 ff6ab114c9 [dev.typeparams] cmd/compile/internal/types: review of gccgosizes.go
+ 2020-10-27 abb31c2558 [dev.typeparams] cmd/compile/internal/types2: review of hilbert_test.go
+ 2020-10-27 6e98406ac3 [dev.typeparams] cmd/compile/internal/types2: review of initorder.go
+ 2020-10-27 38af45b4cb [dev.typeparams] cmd/compile/internal/types2: review of package.go
+ 2020-10-27 87eab74628 [dev.typeparams] cmd/compile: enable type-checking of generic code
+ 2020-10-23 5bfd2964a6 [dev.typeparams] merge master into dev.typeparams
+ 2020-10-22 a10fe9f6e7 go/ast: import AST changes supporting typeparams from dev.go2go
+ 2020-10-21 7a8a720c80 [dev.typeparams] cmd/compile/internal/types2: add *.go2 (generic) tests
+ 2020-10-21 755d6de1d8 [dev.typeparams] cmd/compile/internal/types2: add some more tests
+ 2020-10-21 1d07306a44 [dev.typeparams] cmd/compile/internal/types2: adjust tests, enable Testdata tests
+ 2020-10-21 befc62a2c4 [dev.typeparams] cmd/compile/internal/types2: add testdata directory
+ 2020-10-21 ca36ba83ab [dev.typeparams] cmd/compile/internal/importer, types2: initial check-in of types2 and importer
+ 2020-10-20 6ff16fe3ee [dev.typeparams] cmd/compile/internal/syntax: add utility functions for testing
+ 2020-10-19 5e46c6a10f [dev.typeparams] cmd/compile/internal/syntax: add Pos method
+ 2020-10-15 e9e58a4d49 [dev.typeparams] cmd/compile/internal/syntax: fix printing of channel types
+ 2020-10-14 73f529845c [dev.typeparams] cmd/compile/internal/syntax: always use IndexExpr node for type instantiation
+ 2020-10-13 48755e06aa [dev.typeparams] cmd/compile: enable parsing of generic code with new -G flag
+ 2020-10-13 7668f02dec [dev.typeparams] cmd/compile/internal/syntax: add type parameter tests
+ 2020-10-13 b627988b0c [dev.typeparams] cmd/compile/internal/syntax: implement parsing of type parameters
+ 2020-10-13 617b633917 [dev.typeparams] cmd/compile/internal/syntax: prepare syntax nodes for type parameters
+ 2020-10-12 986cad14e2 [dev.typeparams] merge master into dev.typeparams

Change-Id: Ie0796a53af1fb5db49f4c748144461d3af598575
2021-02-19 12:23:42 -08:00
Robert Griesemer
7cdfa4969a [dev.typeparams] all: merge master (06b86e9) into dev.typeparams
Merge List:

+ 2021-02-19 06b86e9803 cmd/compile:  fix check to avoid creating new closure function when typechecking inline body
+ 2021-02-19 9322eec8a2 codereview.cfg: add codereview.cfg for master branch
+ 2021-02-19 02e5a8fdfc runtime: ignore SPWRITE in syscall functions
+ 2021-02-19 fa18f224c3 runtime/pprof: disable TestMorestack on macOS under race detector
+ 2021-02-19 01eb70e3dd os: fix hex exit code print on 32-bit windows
+ 2021-02-19 49add6ad90 runtime: fix spurious stack overflow detection
+ 2021-02-19 fce2a94d84 cmd/compile: fix buglet in inlined info abstract function dwarf-gen
+ 2021-02-19 7764ee5614 runtime: fix invalid nil g check for for mips64x
+ 2021-02-19 87f425da14 cmd/go/internal/mvs: split Reqs into narrower per-function interfaces
+ 2021-02-19 4da0188c6c cmd/go/internal/modget: split resolveCandidates into two methods
+ 2021-02-19 5f2e24efb3 cmd/internal/diff: skip over Cygwin warning in diff output
+ 2021-02-19 ee7038f6a5 net: disable Windows netsh tests when netsh won't run
+ 2021-02-19 40765ffa95 os/exec: disable failing LookPathTest on windows/arm64
+ 2021-02-19 b445d6ea34 runtime/pprof: expect tests to pass on macOS
+ 2021-02-19 b110a43628 runtime: delete gosave (dead code)
+ 2021-02-19 474d5f4f4d math: remove most 387 implementations
+ 2021-02-19 c7c6c113be runtime: convert windows/arm64 assembly
+ 2021-02-19 3527caa7d6 runtime: initial windows/arm64 implementation files
+ 2021-02-19 427bd7599d runtime: generate windows/arm64 callback asm
+ 2021-02-19 f6c4b4bf96 syscall: add windows/arm64 support
+ 2021-02-19 ac024a0c7b cmd/vendor: get golang.org/x/sys@beda7e5e158
+ 2021-02-19 a3b97e7628 test: disable nilptr on windows/arm64
+ 2021-02-19 985d087782 cmd/link: add windows/arm64 support
+ 2021-02-19 95a44d2409 cmd/internal/objfile: recognize Windows ARM64 executables
+ 2021-02-19 0ca0551f02 debug/pe: recognize arm64 executables
+ 2021-02-19 0c633125f2 cmd/dist: add windows/arm64 support
+ 2021-02-19 bb6efb9609 build: set GOPATH consistently in run.bash, run.bat, run.rc
+ 2021-02-19 a1222b7535 cmd/link: add debug print in deadcode
+ 2021-02-19 1c659f2525 cmd/link: clean up windows PE generation
+ 2021-02-19 b6379f190b syscall: clean up windows a bit
+ 2021-02-19 09e059afb1 runtime: enable framepointer on all arm64
+ 2021-02-19 b19e7b518e runtime: clean up windows a bit
+ 2021-02-19 5421c37a1d runtime: fix windows/arm externalthreadhandler
+ 2021-02-19 91cc484ea9 runtime: fix time on windows/arm under WINE
+ 2021-02-19 38672d3dcf runtime: crash earlier on windows for runtime.abort
+ 2021-02-19 a1e9148e3d runtime: print hex numbers with hex prefixes in traceback debug
+ 2021-02-19 75e273fc2c runtime: fix windows/arm CONTEXT_CONTROL
+ 2021-02-19 76ab626bfc runtime: factor common code out of defs_windows_*.go
+ 2021-02-19 ece954d8b8 runtime: find g in Windows profiler using SP
+ 2021-02-19 a54f7fc0fd runtime: do not treat asmcgocall as a topofstack on g0
+ 2021-02-19 776ee4079a runtime: do not treat morestack as a topofstack
+ 2021-02-19 5ecd9e34df runtime: do not treat mcall as a topofstack
+ 2021-02-19 54da3ab385 runtime: use TOPFRAME to identify top-of-frame functions
+ 2021-02-19 fbe74dbf42 runtime: use FuncInfo SPWRITE flag to identify untraceable profile samples
+ 2021-02-19 4dd77bdc91 cmd/asm, cmd/link, runtime: introduce FuncInfo flag bits
+ 2021-02-19 aa0388f2ed runtime: remove unnecessary writes to gp.sched.g
+ 2021-02-19 6fe8981620 cmd/internal/obj/riscv: fix JMP name<>(SB)
+ 2021-02-19 01f05d8ff1 runtime: unify asmcgocall and systemstack traceback setup
+ 2021-02-19 229695a283 runtime: clean up funcID assignment
+ 2021-02-19 c80da0a33a runtime: handle nil gp in cpuprof
+ 2021-02-19 a78879ac67 runtime: move sys.DefaultGoroot to runtime.defaultGOROOT
+ 2021-02-19 8ac23a1f15 runtime: document, clean up internal/sys
+ 2021-02-19 678568a5cf runtime: delete windows setlasterror (unused)
+ 2021-02-19 0d94f989d1 runtime: clean up system calls during cgo callback init
+ 2021-02-19 e7ee3c1fa8 os: report Windows exit status in hex

Change-Id: Ib27e232dabac0604b588f27749bd8ad45a281fe3
2021-02-19 11:56:04 -08:00
Robert Griesemer
6521c7b378 [dev.typeparams] cmd/compile/internal/types2: resolve decl cycle the same way as in go/types
Minor adjustment to match go/types more closely.

Change-Id: Id79c51f0ecd8cda0f5b68f6e961500f7f22f7115
Reviewed-on: https://go-review.googlesource.com/c/go/+/294270
Reviewed-by: Robert Findley <rfindley@google.com>
Trust: Robert Griesemer <gri@golang.org>
2021-02-19 19:39:03 +00:00
Dan Scales
06b86e9803 cmd/compile: fix check to avoid creating new closure function when typechecking inline body
By default, when typechecking a closure, tcClosure() creates a new
closure function. This should really be done separate from typechecking.
For now, we explicitly avoid creating a new closure function when
typechecking an inline body (in ImportedBody). However, the heuristic
for determining when we are typechecking an inline body was not correct
for double nested closures in an inline body, since CurFunc will then be
the inner closure, which has a body.

So, use a simple global variable to indicate when we typechecking an
inline body. The global variable is fine (just like ir.CurFunc), since
the front-end runs serially.

Fixes #44325

Change-Id: If2829fe1ebb195a7b1a240192b57fe6f04d1a36b
Reviewed-on: https://go-review.googlesource.com/c/go/+/294211
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
2021-02-19 19:28:53 +00:00
Russ Cox
9322eec8a2 codereview.cfg: add codereview.cfg for master branch
The codereview sync-branch command wants all involved
branches to have codereview.cfg, and this will help us when
we transition from master to main later this year.

Change-Id: Ia8e4c8b8c86864ed9d730e5d96be1ff386e2e1cb
Reviewed-on: https://go-review.googlesource.com/c/go/+/294291
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2021-02-19 18:44:53 +00:00
Russ Cox
02e5a8fdfc runtime: ignore SPWRITE in syscall functions
netbsd/amd64's Syscall9 changes SP using ADD and SUB,
which are treated as SPWRITEs (they are not accounted for
in the sp-adjust tracking, and there are too many functions that
would report mismatched stack adjustments at RET if they were).
A traceback starting in Syscall9 as saved by entersyscall complains
about the SPWRITE-ness unnecessarily, since the PC/SP are saved
at the start of the function. Ignore SPWRITE in that case.

netbsd/arm's Syscall6 also changes SP (R13), using a direct write.
So even if we could handle the ADD/SUB in the amd64 case or
rewrote that assembly, we'd still be stuck with a more difficult
problem in this case. Ignoring the SPWRITE fixes it.

Example crashes:
https://build.golang.org/log/160fc7b051a2cf90782b75a99984fff129329e66
https://build.golang.org/log/7879e2fecdb400eee616294285e1f952e5b17301

Change-Id: I0c8e9696066e90dafed6d4a93d11697da23f0080
Reviewed-on: https://go-review.googlesource.com/c/go/+/294072
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
2021-02-19 16:09:17 +00:00
Russ Cox
fa18f224c3 runtime/pprof: disable TestMorestack on macOS under race detector
This is failing but only under the race detector.
It doesn't really seem fair to expect pprof to find
specific profile events with the race detector slowing
everything down anyway.

Change-Id: I4b353d3d63944c87884d117e07d119b2c7bf4684
Reviewed-on: https://go-review.googlesource.com/c/go/+/294071
Trust: Russ Cox <rsc@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2021-02-19 15:31:06 +00:00
Russ Cox
01eb70e3dd os: fix hex exit code print on 32-bit windows
We want to print hex exit codes for the large values,
but on 32-bit Windows the large values are negative.

Change-Id: I0e350b128414a9468c93eddc62d660f552c1ee05
Reviewed-on: https://go-review.googlesource.com/c/go/+/294070
Trust: Russ Cox <rsc@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2021-02-19 15:30:59 +00:00
Russ Cox
49add6ad90 runtime: fix spurious stack overflow detection
The regabi builders are unhappy about badctxt calling throw
calling systemstack calling gosave_systemstack_switch calling
badctxt, all nosplit, repeating. This wouldn't actually happen
since after one systemstack we'd end up on the system stack
and the next one wouldn't call gosave_systemstack_switch at all.

The badctxt call itself is in a very unlikely assertion failure
inside gosave_systemstack_switch.
Keep the assertion check but call runtime.abort instead on failure,
breaking the detected (but not real) cycle.

Change-Id: Iaf5c0fc065783b8c1c6d0f62d848f023a0714b96
Reviewed-on: https://go-review.googlesource.com/c/go/+/294069
Trust: Russ Cox <rsc@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2021-02-19 15:30:52 +00:00
Than McIntosh
fce2a94d84 cmd/compile: fix buglet in inlined info abstract function dwarf-gen
When generating DWARF inlined info records, it's possible to have a
local function whose only callsites are inlined away, meaning that we
emit an abstract function DIE but no regular subprogram DIE. When
emitting DWARF scope info we need to handle this case (specifically
when scoping PCs, check for the case that the func in question has
been entirely deleted).

Fixes #44344.

Change-Id: I9f5bc692f225aa4c5c23f7bd2e50bcf7fe4fc5f3
Reviewed-on: https://go-review.googlesource.com/c/go/+/293309
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Reviewed-by: Russ Cox <rsc@golang.org>
Trust: Than McIntosh <thanm@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
2021-02-19 14:46:21 +00:00
Robert Griesemer
dfe0ef961b [dev.typeparams] go/types, types2: revert fancy struct printing (fixes x/tools tests)
An embedded struct field is embedded by mentioning its type.
The fact that the field name may be different and derived
from the type doesn't matter for the struct type.

Do print the embedded type rather than the derived field
name, as we have always done in the past. Remove the fancy
new code which was just plain wrong.

The struct output printing is only relevant for debugging
and test cases. Reverting to the original code (pre-generics)
fixes a couple of x/tools tests.

Unfortunately, the original code is (also) not correct for
embedded type aliases. Adjusted a gccgoimporter test
accordingly and filed issue #44410.

This is a follow-up on https://golang.org/cl/293961 which
addressed the issue only partially and left the incorrect
code in place.

Change-Id: Icb7a89c12ef7929c221fb1a5792f144f7fcd5855
Reviewed-on: https://go-review.googlesource.com/c/go/+/293962
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>
2021-02-19 12:42:07 +00:00
Meng Zhuo
7764ee5614 runtime: fix invalid nil g check for for mips64x
In CL 292109 we removed unnecessary writes to gp.sched.g
but put wrong register to save g (R4 saves pointer to g) on mips64x

Change-Id: I9777846a7b0a46e1af83dcfc73b74649e0dba3c9
Reviewed-on: https://go-review.googlesource.com/c/go/+/293989
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Joel Sing <joel@sing.id.au>
Trust: Meng Zhuo <mzh@golangcn.org>
Run-TryBot: Meng Zhuo <mzh@golangcn.org>
2021-02-19 08:48:55 +00:00
Rob Findley
2f37939a21 go/parser: improve error recovery from invalid selector exprs
Before this CL, the parser consumed the next token following an invalid
selector expr no matter what it was. This leads to poor error recovery
when this next token is a closing delimiter or other reasonable element
of a stop set. As a side-effect, x/tools tests broke when parser logic
for type parameters was introduced, as they threw off the parser
synchronization to the point where the x/tools test bailed out.

This CL introduces a targeted fix that allows the x/tools tests to pass.
More general improvement for parser error recovery should be done for
go1.17.

Change-Id: I44d73d34b6063e62d16a23d24ab7cbce6500239d
Reviewed-on: https://go-review.googlesource.com/c/go/+/293792
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
2021-02-19 01:53:53 +00:00
Robert Griesemer
8654db4555 [dev.typeparams] go/types: adjust printing of embedded struct fields (fixes x/tools/cmd/guru tests)
Prior to 1.16, go/types printed an embedded struct field by simply
printing its type, which may have included a package qualification.
Just printing the type is not useful with generic types and we now
must print the actual field name derived from the type - this leads
to different output for non-generic imported embedded types. Fix by
printing a package qualification in that case.

Change-Id: I2cb2484da7732428d13fdfb5fe4ec1fa1ee813a2
Reviewed-on: https://go-review.googlesource.com/c/go/+/293961
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
2021-02-19 01:22:43 +00:00
Bryan C. Mills
87f425da14 cmd/go/internal/mvs: split Reqs into narrower per-function interfaces
Reqs currently combines requirements with upgrades and downgrades.
However, only Upgrade needs the Upgrade method, and only Downgrade
needs the Previous method.

When we eventually add lazy loading, the lazily-loaded module graph
will not be able to compute upgrades and downgrades, so the
implementation work from here to there will be clearer if we are
explicit about which are still needed.

For #36460

Change-Id: I7bf8c2a84ce6bc4ef493a383e3d26850e9a6a6c0
Reviewed-on: https://go-review.googlesource.com/c/go/+/290771
Trust: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
Reviewed-by: Jay Conrod <jayconrod@google.com>
2021-02-19 01:22:14 +00:00
Bryan C. Mills
4da0188c6c cmd/go/internal/modget: split resolveCandidates into two methods
It turns out that the existing call sites of the resolveCandidates
method pass only *either* a slice of queries or a slice of upgrades
(never both), and the behaviors triggered by the two parameters don't
overlap much at all. To clarify the two different operations, split
them into two separate methods.

For #36460

Change-Id: I64651637734fd44fea68740a3cdfbacfb73c19b6
Reviewed-on: https://go-review.googlesource.com/c/go/+/289697
Trust: Bryan C. Mills <bcmills@google.com>
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
Reviewed-by: Jay Conrod <jayconrod@google.com>
2021-02-19 01:19:01 +00:00
Russ Cox
5f2e24efb3 cmd/internal/diff: skip over Cygwin warning in diff output
This happens on Windows. Don't let it stop us.

Change-Id: Ie2115d5825e1c2217f237ed373adb35594a5aaff
Reviewed-on: https://go-review.googlesource.com/c/go/+/293850
Trust: Russ Cox <rsc@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2021-02-19 00:41:47 +00:00
Russ Cox
ee7038f6a5 net: disable Windows netsh tests when netsh won't run
On my Surface Pro X running the insider preview,
running "netsh help" from Powershell started from the task bar works.
But running "powershell" at a cmd.exe prompt and then running
"netsh help" produces missing DLL errors.
These aren't our fault, so just skip the netsh-based tests if this happens.

Change-Id: I13a17e01143d823d3b5242d827db056bd253e3e9
Reviewed-on: https://go-review.googlesource.com/c/go/+/293849
Trust: Russ Cox <rsc@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2021-02-19 00:41:41 +00:00
Russ Cox
40765ffa95 os/exec: disable failing LookPathTest on windows/arm64
For #44379.

Change-Id: I9a3cf4d511a8286117f877c2ff9dbde56fa55983
Reviewed-on: https://go-review.googlesource.com/c/go/+/293709
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Trust: Russ Cox <rsc@golang.org>
2021-02-19 00:41:36 +00:00
Russ Cox
b445d6ea34 runtime/pprof: expect tests to pass on macOS
macOS tests have been disabled since CL 12429045 (Aug 2013).
At the time, macOS required a kernel patch to get a working profiler
(https://research.swtch.com/macpprof), which we didn't want
to require, of course.

macOS has improved - it no longer requires the kernel patch - but
we never updated the list of exceptions.

As far as I can tell, the builders have no problem passing the pprof test now.
(It is possible that the iOS builders have trouble, but that is now a different GOOS.)

Remove the exception for macOS. The test should now pass.

Fixes #6047.

Change-Id: Iab49036cacc1025e56f515bd19d084390c2f5357
Reviewed-on: https://go-review.googlesource.com/c/go/+/292229
Trust: Russ Cox <rsc@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2021-02-19 00:41:28 +00:00
Russ Cox
b110a43628 runtime: delete gosave (dead code)
Change-Id: Ie811526534df8622d89c5b1b81dbe19ece1c962b
Reviewed-on: https://go-review.googlesource.com/c/go/+/292110
Trust: Russ Cox <rsc@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2021-02-19 00:41:17 +00:00
Russ Cox
474d5f4f4d math: remove most 387 implementations
The Surface Pro X's 386 simulator is not completely faithful to a real 387.
The most egregious problem is that it computes Log2(8) as 2.9999999999999996,
but it has some other subtler problems as well. All the problems occur in
routines that we don't even bother with assembly for on amd64.
If the speed of Go code is OK on amd64 it should be OK on 386 too.
Just remove all the 386-only assembly functions.

This leaves Ceil, Floor, Trunc, Hypot, and Sqrt in 386 assembly,
all of which are also in assembly on amd64 and all of which pass
their tests on Surface Pro X.

Compared to amd64, the 386 port omits assembly for Min, Max, and Log.
It never had Min and Max, and this CL deletes Log because Log2 wasn't
even correct. (None of the other architectures have assembly Log either.)

Change-Id: I5eb6c61084467035269d4098a36001447b7a0601
Reviewed-on: https://go-review.googlesource.com/c/go/+/291229
Trust: Russ Cox <rsc@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2021-02-19 00:41:09 +00:00
Russ Cox
c7c6c113be runtime: convert windows/arm64 assembly
The assembly is mostly a straightforward conversion of the
equivalent arm assembly.

This CL is part of a stack adding windows/arm64
support (#36439), intended to land in the Go 1.17 cycle.

Change-Id: I61b15d712ade4d3a7285c7680de8e0987aacba10
Reviewed-on: https://go-review.googlesource.com/c/go/+/288828
Trust: Russ Cox <rsc@golang.org>
Trust: Jason A. Donenfeld <Jason@zx2c4.com>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2021-02-19 00:41:03 +00:00
Russ Cox
3527caa7d6 runtime: initial windows/arm64 implementation files
This CL adds a few small files - defs, os, and rt0 - to start
on windows/arm64 support for the runtime.

It also copies sys_windows_arm.s to sys_windows_arm64.s,
with the addition of "#ifdef NOT_PORTED" around the entire file.
This is meant to make future CLs easier to review, since the
general pattern is to translate the 32-bit ARM assembly into
64-bit ARM assembly.

This CL is part of a stack adding windows/arm64
support (#36439), intended to land in the Go 1.17 cycle.

Change-Id: I922037eb3890e77bac48281ecaa8e489595675be
Reviewed-on: https://go-review.googlesource.com/c/go/+/288827
Trust: Russ Cox <rsc@golang.org>
Trust: Jason A. Donenfeld <Jason@zx2c4.com>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com>
2021-02-19 00:40:56 +00:00
Russ Cox
427bd7599d runtime: generate windows/arm64 callback asm
This CL is part of a stack adding windows/arm64
support (#36439), intended to land in the Go 1.17 cycle.

Change-Id: I5e2b589797808626bcca771cdf860d5cb85586cb
Reviewed-on: https://go-review.googlesource.com/c/go/+/288826
Trust: Russ Cox <rsc@golang.org>
Trust: Jason A. Donenfeld <Jason@zx2c4.com>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com>
2021-02-19 00:40:49 +00:00
Russ Cox
f6c4b4bf96 syscall: add windows/arm64 support
types_windows_arm64.go is a copy of types_windows_amd64.go.
All that matters for these types seems to be that they are 64-bit vs 32-bit.

This CL is part of a stack adding windows/arm64
support (#36439), intended to land in the Go 1.17 cycle.

Change-Id: Ia7788d6e88e5db899371c75dc7dea7d912a689ad
Reviewed-on: https://go-review.googlesource.com/c/go/+/288825
Trust: Russ Cox <rsc@golang.org>
Trust: Jason A. Donenfeld <Jason@zx2c4.com>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com>
2021-02-19 00:40:42 +00:00
Russ Cox
ac024a0c7b cmd/vendor: get golang.org/x/sys@beda7e5e158
This brings in the windows/arm64 support, along with other recent changes.

This CL is part of a stack adding windows/arm64
support (#36439), intended to land in the Go 1.17 cycle.

Change-Id: Ifaca710093376c658ecf91239aa05cc33af98a31
Reviewed-on: https://go-review.googlesource.com/c/go/+/288824
Trust: Russ Cox <rsc@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
2021-02-19 00:40:30 +00:00
Russ Cox
a3b97e7628 test: disable nilptr on windows/arm64
The address space starts at 4GB, so dummy is too far out.

This CL is part of a stack adding windows/arm64
support (#36439), intended to land in the Go 1.17 cycle.

Change-Id: I5f67e268ce729086d9f9fc8541722fabccfd0145
Reviewed-on: https://go-review.googlesource.com/c/go/+/288823
Trust: Russ Cox <rsc@golang.org>
Trust: Jason A. Donenfeld <Jason@zx2c4.com>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com>
2021-02-19 00:40:22 +00:00
Russ Cox
985d087782 cmd/link: add windows/arm64 support
This CL is part of a stack adding windows/arm64
support (#36439), intended to land in the Go 1.17 cycle.

Change-Id: I397c1d238bb18cbe78b3fca00910660cf1d66b8d
Reviewed-on: https://go-review.googlesource.com/c/go/+/288822
Trust: Russ Cox <rsc@golang.org>
Trust: Jason A. Donenfeld <Jason@zx2c4.com>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com>
2021-02-19 00:40:16 +00:00
Russ Cox
95a44d2409 cmd/internal/objfile: recognize Windows ARM64 executables
This CL is part of a stack adding windows/arm64
support (#36439), intended to land in the Go 1.17 cycle.

Change-Id: I5ec459063d394b9f434d1b8b5030960b45061038
Reviewed-on: https://go-review.googlesource.com/c/go/+/288821
Trust: Russ Cox <rsc@golang.org>
Trust: Jason A. Donenfeld <Jason@zx2c4.com>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com>
2021-02-19 00:40:05 +00:00