Commit Graph

768 Commits

Author SHA1 Message Date
David R. Jenni 36a48c93a6 x/tools/go/ssa: remove unused field from NamedConst
Found with honnef.co/go/tools/cmd/unused.

Change-Id: I68b4af07cc64a46f5794a0e339859f4d6bc9dad1
Reviewed-on: https://go-review.googlesource.com/37605
Reviewed-by: Alan Donovan <adonovan@google.com>
2017-03-01 14:40:01 +00:00
David R. Jenni 718875e4f9 x/tools: simplify and format code
Semi-mechanical changes using gofmt -s
and honnef.co/go/tools/cmd/gosimple.

Change-Id: I41bcf4bea5b16c4776b7cf6534b76aa59b3c022d
Reviewed-on: https://go-review.googlesource.com/37447
Reviewed-by: Alan Donovan <adonovan@google.com>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-02-28 14:15:42 +00:00
Alan Donovan 219e654bb7 go/ssa: eliminate dead φ-nodes in cycles
The previous "dead φ" check was simple and naive but left cycles of
dead φ-nodes.  This confused some downstream static analysis tools.
This change makes the φ-nodes liveness check transitive.

+ Test.

Also, number phi nodes so they're not all called t0 during debugging.

Reduces memory consumption by  1%.
Increases execution time   by <1%.

Change-Id: I2908662c1478d455fdf4a179f4a12d6184a456c0
Reviewed-on: https://go-review.googlesource.com/37157
Reviewed-by: Robert Griesemer <gri@golang.org>
2017-02-22 01:23:56 +00:00
Ian Lance Taylor f84eaba4be go/loader: only run examples on 1.8
Tip introduces a new internal/poll package that breaks the expected
output.

Fixes golang/go#19150
Updates golang/go#19152

Change-Id: I5ff7e8a92afe4d25feb6365933062e931c9b435f
Reviewed-on: https://go-review.googlesource.com/37148
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
2017-02-17 19:31:53 +00:00
David R. Jenni be0fcc31ae x/tools/go: gofmt -s -w
Change-Id: I978b981d95909f2590c1e1db05e8a95e232a67d5
Reviewed-on: https://go-review.googlesource.com/32794
Reviewed-by: Alan Donovan <adonovan@google.com>
2017-02-15 21:43:35 +00:00
Alan Donovan 6e7ee5a9ec x/tools: support Go 1.9 type aliases
For #18130.

Change-Id: Ice695602619dbbf851af970e790f07ff2ac2c141
Reviewed-on: https://go-review.googlesource.com/36623
Reviewed-by: Robert Griesemer <gri@golang.org>
2017-02-13 21:46:59 +00:00
haya14busa 8524ce5143 imports, go/ast/astutil: do not make grouped imports non-grouped when removing
import (
		"fmt"
		"strings"
	)

When deleting "fmt" import statement, code should be converted to the
following code.

	import (
		"strings"
	)

Instead of

	import "strings"

Diff becomes nicer by this change and it avoids that rewriting grouped
imports non-grouped may result in confusion comments.

Example:

	// comment 1
	import (
		"fmt"
	        // comment 2
		"strings"
	)

should be

	// comment 1
	import (
	        // comment 2
		"strings"
	)

instead of

	// comment 1
        // comment 2
	import "strings"

Fixes golang/go#18051

Change-Id: I3c07b70b657191eacf83c3197a965e587286c950
Reviewed-on: https://go-review.googlesource.com/36853
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
2017-02-13 18:56:44 +00:00
Alan Donovan b56ef30191 tools: updates for minimum Go version 1.6
Details:
- remove go1.5 "default version" labels on most files
- remove go1.6 labels on a few files
- go/loader: use conf.Cwd not "." in a couple places; update faulty
  test expectations.  (Not sure why this wasn't caught sooner.)
- go/ssa/interp: add 'mono' result to time.now intrinsic
- go/gcimporter15/bimport.go: make consistent with the version in gc
- go/ssa/interp: update test error message
- go/ssa: update a comment

The go/gcimporter15/bexport.go logic is stale and needs to be brought
up to date.  Needs a separate CL since it's tricky.

Tested on go1.6, go1.7, go1.8.

Change-Id: I841189d30e131b7c49a4e8690ea7c40b55041bae
Reviewed-on: https://go-review.googlesource.com/36540
Reviewed-by: Robert Griesemer <gri@golang.org>
2017-02-07 21:06:19 +00:00
Alan Donovan 1977f1cf7d go/ssa/interp: remove old TODO
Change-Id: Ia518721769048a5f7413eb90265cc27128cc9c10
Reviewed-on: https://go-review.googlesource.com/36537
Reviewed-by: Robert Griesemer <gri@golang.org>
2017-02-07 19:36:57 +00:00
Robert Griesemer b55a2aaa40 go/internal/gccgoimporter: add missing testfile (fix 1.9 build)
Change-Id: Icba8d6917dcac4b8f541fc11305981539a12924a
Reviewed-on: https://go-review.googlesource.com/36116
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-02-01 22:16:26 +00:00
Robert Griesemer fcfba28e23 go/internal/gccgoimporter: support for type aliases
This is essentially a copy of the changes in https://golang.org/cl/35268/
but with Go1.9 specific tests factored out into a separate file with build
tag.

For golang/go#18130.

Change-Id: I235693e1bc6145bb53bfd3b343647704c8e82e61
Reviewed-on: https://go-review.googlesource.com/35269
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
2017-01-20 05:57:59 +00:00
Robert Griesemer de557280a1 go/gcimporter15: update import/export to handle type aliases
- bimport.go is a 1:1 copy of the respective version in the std
  library: $GOROOT/src/go/internal/gcimporter/bimport.go .

- bexport.go is mimicking the respective code in the cmd/compile.

- isAlias18/19.go are needed because types.TypeName.IsAlias does
  not exist before Go 1.9.

Tested against Go 1.6, 1.7, 1.8, 1.9 (dev.typealias branch).

For golang/go#18130.

Change-Id: Ic46c5850923fab2a35d4dc33850f2b0667c30398
Reviewed-on: https://go-review.googlesource.com/35104
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
2017-01-11 20:35:34 +00:00
Samuel Tan dd79664177 go/internal/gccgoimporter: accept missed portions of v2 format
Same as https://go-review.googlesource.com/c/34371/ in the standard library.

Fixes #18301.

Change-Id: I132585e0f98c53437fdef44ac36af8f21d141a83
Reviewed-on: https://go-review.googlesource.com/34387
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-12-15 00:32:54 +00:00
Brad Fitzpatrick a888bfdffa go/loader: fix broken tests after context removal from testing package
Updates golang/go#11811
Updates golang/go#18199

Change-Id: I2ce4615653034563a64b9c126651d2a6ce2aef50
Reviewed-on: https://go-review.googlesource.com/34274
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Joe Tsai <thebrokentoaster@gmail.com>
2016-12-10 02:42:22 +00:00
Alan Donovan 3d92dd6003 go/internal/gccgoimporter: handle conversions in exported const values
Same as https://go-review.googlesource.com/c/33412/ in the standard library.

Fixes #17981.

Change-Id: Iaf47872840a4456d824ed5d7b3eda205c043e4cf
Reviewed-on: https://go-review.googlesource.com/34110
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-12-07 20:12:13 +00:00
Rebecca Stambler 99be5a0b85 go/buildutil, cmd/guru: resolve symlinks in filenames through build.Context
Resolve symlinks in source directories (GOPATH, GOROOT, etc.) and source
files in order to find correct package. All I/O performed through
build.Context. Also add minor fix to guru unit tests in order to pass on
Windows.

Change-Id: Ie6134b9cd74eb7386e1d93603eb37c8e44b083b8
Reviewed-on: https://go-review.googlesource.com/33924
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-12-06 21:45:43 +00:00
Rebecca Stambler ae1141fc8b Revert "go/buildutil: handle symlinks in filenames"
Reason: ContainingPackage should do all I/O through build.Context.

This reverts commit 3a9a2cbbc4.

Change-Id: I3897d8da5026ddc470989e3f239540286e89df4d
Reviewed-on: https://go-review.googlesource.com/33922
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-12-05 22:44:39 +00:00
Rebecca Stambler 07e766bf81 Revert "go/buildutil, cmd/guru: fix tests for symlinks in guru and gorename to account for windows."
Reason: ContainingPackage must do all I/O through build.Context.

This reverts commit c945ee3be4.

Change-Id: I625410bc754ea2d150be097bf424de2be42acde4
Reviewed-on: https://go-review.googlesource.com/33921
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-12-05 22:43:53 +00:00
Rebecca Stambler c945ee3be4 go/buildutil, cmd/guru: fix tests for symlinks in guru and gorename to account for windows
Restructure tests to account for possibility of being run on Windows
(which doesn't handle symlinks).

Change-Id: I428db26c9a1aad337d8972baa2b71468be3a2e58
Reviewed-on: https://go-review.googlesource.com/33920
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-12-05 21:18:37 +00:00
Rebecca Stambler 3a9a2cbbc4 go/buildutil: handle symlinks in filenames
Resolve symlinks in source directories (GOPATH, GOROOT, etc.) and source
files in order to find correct package.

Fixes golang/go#16219

Change-Id: I6fae14908827d5ebac55dfe455eaf616f71f8767
Reviewed-on: https://go-review.googlesource.com/33919
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-12-05 20:02:40 +00:00
Zac Bergquist 8462b1669f go/buildutil: fix doc reference
Fix reference to OverlayContext in the doc for
ParseOverlayArchive.

Change-Id: I0b1db478489764fa309cb2e2f788865ac7ff71bb
Reviewed-on: https://go-review.googlesource.com/33916
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-12-05 17:11:22 +00:00
Alan Donovan 34fe8ce027 go/gcexportdata: better error when reading exportdata directly from archive
Change-Id: Iaa6fe8a33bee852be4e2414c6db7ca5df17006b6
Reviewed-on: https://go-review.googlesource.com/33715
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-11-30 19:52:27 +00:00
Alan Donovan 6c803ab014 go/loader: resolve imports in "created" packages w.r.t. parent dir not cwd
Fixes golang/go#16580

Change-Id: Id891f40659257eac9dbb0d70dae17f725e911f9b
Reviewed-on: https://go-review.googlesource.com/33589
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-11-28 22:26:25 +00:00
Alan Donovan 89662b06bc go/ssa/interp: add several intrinsics for Darwin
Also: drop all pretense of support for platforms other than darwin and linux.
This package is just a test of go/ssa, not a portable interpreter, and these
are the only platforms to which I have easy access.

Builds on: freebsd darwin plan9 linux windows

Change-Id: I965abc67b1280d33e933b83607a4372d65e070cf
Reviewed-on: https://go-review.googlesource.com/33163
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-11-28 17:49:04 +00:00
Alan Donovan 167995c67f go/ssa: avoid no-arg println(), for gccgo compatibility
Change-Id: I5f789ae492ff0f0ad62d89e3ae762ece6c867d20
Reviewed-on: https://go-review.googlesource.com/33573
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-11-23 22:44:20 +00:00
Alan Donovan 5e2ae75eb7 go/ssa/interp: add syscall.Readlink intrinsic, needed by os package
Change-Id: Ie408fd5ffb2be2d60773eb3fda91912887df0a7e
Reviewed-on: https://go-review.googlesource.com/33147
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-11-11 21:41:07 +00:00
Alan Donovan 22ba3f367c go/gcimporter15: pretend blank fields have same owner
The export data formats (text and binary) emitted by gc in Go 1.7 did
not record the package that "owns" each blank field, even though blank
is an unexported identifier.  Before, gcimporter would assume the
package of the export data file owns blank fields within it, even
blank fields reexported from another package.  As a result, identical
types would become nonidentical during reexporting.

For bug compatibility with gc, gcimporter now treats blank fields as
if they all belong to the same dummy package, avoiding spurious "can't
assign A to B" errors in tools based on go/types.

Change-Id: I0dbf71491a0ec0f376e9dc8a91efe0376c855a28
Reviewed-on: https://go-review.googlesource.com/33146
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-11-11 21:27:08 +00:00
Robert Griesemer a69656e0e2 go/gcimporter: update export data format version
We already are compatible with the latest format. Update version.

Tested against 1.6, 1.7, and tip.

Fixes golang/go#17734.

Change-Id: Ia167adf0ed1de371c348329513819fb9e8ca2628
Reviewed-on: https://go-review.googlesource.com/33113
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-11-11 18:00:05 +00:00
Robert Griesemer c959b77b38 go/gcimporter15: update build tags and comments
We don't support Go1.5 anymore.

Tested with 1.6, 1.7, and tip.

For golang/go#17734.

Change-Id: I718c7996b99f9b98744346e119ee209b4709a070
Reviewed-on: https://go-review.googlesource.com/33111
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-11-11 17:55:17 +00:00
Alan Donovan 5061f921c7 go/gccgoexportdata: correctly handle archive files containing string tables
If the name of an archive member is longer than 16 bytes, an ELF archive
file contains a string table of file names under the name "//", and this
member has no mode.  Skip such members.

+ Test.

Change-Id: Ib10db1cc42816c9002433be6176240e490678560
Reviewed-on: https://go-review.googlesource.com/32973
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2016-11-09 21:28:38 +00:00
Alan Donovan 7ce0cddaad go/ssa: synthesize Go 1.8-compatible test main package
...to match the new interface between "go test" and the standard testing
package.

Rather than generate SSA code directly, which was tricky and fragile, we
now generate source just as "go test" does, type-check it, and build an
SSA package from it.  crawshaw suggested I do this in the very first
version of testmain.go, but at the time I believed it to be infeasible.

The testMainStartBodyHook mechanism has gone away; installations that
needed it can now achieve the same results more easily by overriding the
templates.

Tested with Go 1.6, 1.7 and 1.8.

Fixes golang/go#17722

Change-Id: I3ffd25f01157f6fb7a39acd18af46f17e9c07b99
Reviewed-on: https://go-review.googlesource.com/32888
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-11-08 18:33:05 +00:00
Samuel Tan 09079c88dc go/gccgoexportdata: plumb additional arguments to gccgo compiler
Allow extra arguments to be passed to the specified gccgo compiler
when it is called in GccgoInstallation.InitFromDriver. This allows
the call to gccgo to be adjusted depending on the build environment.

For example, some build environments require the
'no-canonical-prefixes' option to prevent gccgo from resolving
symlinks when generating relative prefixes.

Change-Id: I0ecf338ee7a3780f1f65b30e214e69c1698041bb
Reviewed-on: https://go-review.googlesource.com/32874
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-11-07 23:39:01 +00:00
Robert Griesemer 46c63f3841 go/gcimporter15: revert user-visible changes related to aliases
Reason: Decision to back out current alias implementation.
For golang/go#16339 (comment).

Change-Id: Id2a394d78a8661c767bcc05370b81f79d9bfb714
Reviewed-on: https://go-review.googlesource.com/32756
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Chris Manghane <cmang@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2016-11-05 01:00:22 +00:00
Alan Donovan 58ec10c513 go/ssa/interp: handle nil *hashmap cleanly
Change-Id: I2cb8eef79bc011b209b3df0b859bcddefd4c8337
Reviewed-on: https://go-review.googlesource.com/32818
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-11-04 21:49:12 +00:00
Alan Donovan 2e348630fd go/loader: fix fragile example test
Change-Id: Ib6313cdba54da8911b8a2ec9e1bc115c30ea6afe
Reviewed-on: https://go-review.googlesource.com/32817
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-11-04 21:44:43 +00:00
Alan Donovan 701d657347 tools: remove go1.8-tagged files
Change-Id: Ib52b85e1c981b6fca55c472120371a0cd37d2dc9
Reviewed-on: https://go-review.googlesource.com/32816
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-11-04 21:29:52 +00:00
Alan Donovan fe1fa38300 go/ssa: remove go1.8 tagged files
Change-Id: Iac37a0dba27459f0484aa4e286c21bb618116619
Reviewed-on: https://go-review.googlesource.com/32836
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-11-04 21:18:10 +00:00
Alan Donovan e2e4d7aa62 go/ast/astutil: revert support for Go 1.8 type aliases
This reverts commit 50193ec1c5.

Reason for revert: aliases will not be part of Go 1.8

Change-Id: Idb3b74243eeb8dbeb2a2f4bd69a248c1dafa5348
Reviewed-on: https://go-review.googlesource.com/32835
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-11-04 21:17:24 +00:00
Alan Donovan 50193ec1c5 go/ast/astutil: support Go 1.8 type aliases
Change-Id: I67d561755c1c06c0438f2b42e6a13efb024558c4
Reviewed-on: https://go-review.googlesource.com/32732
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-11-03 21:54:53 +00:00
Robert Griesemer f08d70c2ed go/gcimporter15: support export/import of invalid aliases
+ test

Tested on 1.6, 1.7, and 1.8.

Fixes golang/go#17731.

Change-Id: I06dff4a72ff08ed5e8ae1d23a1e65fe719c03180
Reviewed-on: https://go-review.googlesource.com/32581
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-11-03 15:57:31 +00:00
Robert Griesemer c3ce94f8a8 go/gcimporter15: update importer test (fix build)
The -newexport flag is on by default for 1.7,
no need to special-case it anymore.

Tested against 1.6, 1.7, and 1.8.

Change-Id: I9c4a31f80d1309564e2a01514fca4b17e4378b9c
Reviewed-on: https://go-review.googlesource.com/32582
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2016-11-02 23:36:01 +00:00
Robert Griesemer d54c98191e go/loader: fix ExampleConfig_Import (fix build)
TBR=adonovan

Tested against 1.6, 1.7, and 1.8.

Change-Id: Ifd8e02a83e7b92c00a746f10475ab725801199e2
Reviewed-on: https://go-review.googlesource.com/32638
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2016-11-02 23:31:09 +00:00
Matthew Dempsky d4397e8931 go/gcimporter15: backport double-export fix for aliased objects
Backport of https://golang.org/cl/32575.

Change-Id: Ic4b0794ee440b7ac6275f0ef7dacda20de4fdad0
Reviewed-on: https://go-review.googlesource.com/32577
Reviewed-by: Alan Donovan <adonovan@google.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-11-02 20:38:00 +00:00
Robert Griesemer a829b5068d go/gcimporter15: remove support for Go1.5
Change-Id: I183090131a675237be42cc005719554399704f8d
Reviewed-on: https://go-review.googlesource.com/32541
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-11-02 18:31:16 +00:00
Robert Griesemer a4fe4f6140 go/gcimporter15: implement support for exporting aliases
Tested with 1.6, 1.7, 1.8.

Change-Id: Ib0f751484c360b02aa34c993ce795cb94656705f
Reviewed-on: https://go-review.googlesource.com/32540
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-11-02 18:30:30 +00:00
Robert Griesemer 5b3db00587 go/gcimporter15: implement support for importing aliases
- backport of changes made to std lib:
  https://go-review.googlesource.com/32350/
  https://go-review.googlesource.com/32538

- factored out newAlias for non-Go1.8 builds

- tested against 1.6, 1.7, 1.8

Change-Id: I538b2d4a0f0c93c517a7aaa3b1562aa3afd154dd
Reviewed-on: https://go-review.googlesource.com/32470
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-11-02 17:35:51 +00:00
Alan Donovan 4549178751 x/tools: clone some files in preparation for alias changes
This CL only copies files and updates build tags.
Substantive changes will come in follow-ups.
This is a workaround for git's lack of rename/copy tracking.

Tested with go1.6, go1.7, and tip (go1.8).

Change-Id: Id88a05273fb963586b228d5e5dfacab32133a960
Reviewed-on: https://go-review.googlesource.com/32630
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-11-02 16:57:37 +00:00
Alan Donovan b814a3b030 go/internal/gccgoimporter: use 0 not io.SeekStart for Go 1.6 compatibility.
Change-Id: I396e221217c7fac5e7a9d66cbd97ef51782b0dd8
Reviewed-on: https://go-review.googlesource.com/32298
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-10-28 18:18:45 +00:00
Alan Donovan f24fea3cd4 go/gcexportdata: suppress example_test.go on Go 1.6
because its export data doesn't contain file position information.

Change-Id: Ia3ab54ae8a493666b9ad63577aa8fad513385052
Reviewed-on: https://go-review.googlesource.com/32299
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-10-28 18:18:30 +00:00
Alan Donovan 6d7cee0134 go/gcimporter15: read v3 export data not containing type aliases
This is a short-term stop-gap to keep the builders happy.

Change-Id: I87171c20bf44f36fd2c4d7213211217de6110fdd
Reviewed-on: https://go-review.googlesource.com/32293
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-10-28 16:05:56 +00:00