127 Commits

Author SHA1 Message Date
Keith Randall
731bdc5115 runtime: fix aeshash of empty string
Aeshash currently computes the hash of the empty string as
hash("", seed) = seed.  This is bad because the hash of a compound
object with empty strings in it doesn't include information about
where those empty strings were.  For instance [2]string{"", "foo"}
and [2]string{"foo", ""} might get the same hash.

Fix this by returning a scrambled seed instead of the seed itself.
With this fix, we can remove the scrambling done by the generated
array hash routines.

The test also rejects hash("", seed) = 0, if we ever thought
it would be a good idea to try that.

The fallback hash is already OK in this regard.

Change-Id: Iaedbaa5be8d6a246dc7e9383d795000e0f562037
Reviewed-on: https://go-review.googlesource.com/14129
Reviewed-by: jcd . <jcd@golang.org>
2015-09-15 17:51:23 +00:00
Marvin Stenger
211cdf1e00 cmd/compile/internal/gc: cleaning lex.go
Cleaning along the way:
-convert variable types from int to bool
-remove unnecessary functions
-remove unnecessary type conversion
-remove unnecessary variable declarations
-transform struct{string,string} with lookup to map[string]string

This change passes go build -toolexec 'toolstash -cmp' -a std.

Change-Id: I259728fe4afd7f23b67f08fab856ce0abee57b21
Reviewed-on: https://go-review.googlesource.com/14435
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-15 15:55:56 +00:00
Håvard Haugen
4c96e7b79b cmd/compile/internal/gc: clean up errcmp
Change-Id: Id07811a25bf4aa3ff834e7254a3dfb04522b2926
Reviewed-on: https://go-review.googlesource.com/14174
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Dave Cheney <dave@cheney.net>
2015-09-13 23:50:25 +00:00
Marvin Stenger
a20fbe8e18 cmd/compile/internal/gc: convert fields of Symlink to bool
Convert two fields of struct Symlink in subr.go from uint8 to bool.

This change passes go build -toolexec 'toolstash -cmp' -a std.

Change-Id: I913006f41605b17b0d82fe358ee773f6ecaa681c
Reviewed-on: https://go-review.googlesource.com/14378
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2015-09-09 16:07:51 +00:00
Marvin Stenger
9ac0fff70a cmd/compile/internal/gc: convert fields of Type to bool
Convert some fields of struct Type in go.go from uint8 to bool.

This change passes go build -toolexec 'toolstash -cmp' -a std.

Change-Id: I0a6c53f8ee686839b5234010ee2de7ae3940d499
Reviewed-on: https://go-review.googlesource.com/14370
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2015-09-08 17:15:08 +00:00
Dave Cheney
8937780c8a cmd/compile/internal/gc: convert Type.Broke into a bool
Convert Type.Broke from a uint8 to a boolean

This change passes go build -toolexec 'toolstash -cmp' -a std.

Change-Id: I44e7548c71b00467e36576bdf62933c42555a21a
Reviewed-on: https://go-review.googlesource.com/14307
Run-TryBot: Dave Cheney <dave@cheney.net>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Håvard Haugen <havard.haugen@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-09-08 03:17:10 +00:00
Marvin Stenger
932c1e3dd3 cmd/compile/internal: some janitoring
Nicer swaps, loops (removed tmp variables). Use of bool instead of int.

This change passes go build -toolexec 'toolstash -cmp' -a std.

Change-Id: I541904c74b57297848decc51a8a4913a8eca4af3
Reviewed-on: https://go-review.googlesource.com/14316
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-09-07 17:42:48 +00:00
Dave Cheney
22452ac592 cmd/compile: use []*Node instead of NodeList in bottomUpVisitor
This one of a set of changes to make the transition away from NodeList
easier by removing cases in which NodeList doesn't act semi-trivially like a
[]*Node.

This CL was originally prepared by Josh Bleecher Snyder <josharian@gmail.com>.

This change passes go build -toolexec 'toolstash -cmp' -a std.

Change-Id: I582ff8b077eb384b84721a1edb0c1efbc0c40059
Reviewed-on: https://go-review.googlesource.com/14304
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Dave Cheney <dave@cheney.net>
Run-TryBot: Dave Cheney <dave@cheney.net>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2015-09-05 04:34:55 +00:00
Håvard Haugen
3c9fa388df cmd/compile/internal/gc: rename Fatal to Fatalf
This helps vet see a real issue:

    cmd/internal/gc$ go vet
    gen.go:1223: unreachable code

Fixes #12106.

Change-Id: I720868b07ae6b6d5a4dc6b238baa8c9c889da6d8
Reviewed-on: https://go-review.googlesource.com/14083
Reviewed-by: Minux Ma <minux@golang.org>
Run-TryBot: Minux Ma <minux@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-08-31 01:35:23 +00:00
David Chase
2584974d16 cmd/compile: adjust annotation of implicit operations.
Limit probe to ODOT/OIND/ODOTPTR for now; that works.

Fixes #11790

Change-Id: I411271e702c5fe6ceb880ca47c7dacc37ffcbb6a
Reviewed-on: https://go-review.googlesource.com/12532
Reviewed-by: Russ Cox <rsc@golang.org>
2015-07-23 14:19:07 +00:00
David Chase
7929a0ddfa cmd/compile: initialize line number properly for temporaries
The expansion of structure, array, slice, and map literals
does not use the right line number in its introduced assignments
to temporaries, which leads to incorrect line number attribution
for expressions in those literals.

Inlining also incorrectly replaced the line numbers of args to
inlined functions.

This was revealed in CL 9721 because a now-avoided temporary
assignment introduced the correct line number.
I.e. before CL 9721
  "tmp_wrongline := expr"
was transformed to
  "tmp_rightline := expr; tmp_wrongline := tmp_rightline"

Also includes a repair to CL 10334 involving line numbers
where a spurious -1 remained (should have been 0, now is 0).

Fixes #11400.

Change-Id: I3a4687efe463977fa1e2c996606f4d91aaf22722
Reviewed-on: https://go-review.googlesource.com/11730
Run-TryBot: David Chase <drchase@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Sameer Ajmani <sameer@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
2015-07-07 21:30:59 +00:00
Russ Cox
55203c7dd5 cmd/compile: allow unnamed constants to set line number
Fixes #8836.

Change-Id: Idda9f4a987e03b3bdf5e8fdb984fe56d6f84aa59
Reviewed-on: https://go-review.googlesource.com/11672
Reviewed-by: David Chase <drchase@google.com>
2015-06-29 17:35:55 +00:00
David Chase
5be61b18d4 cmd/compile: run escape analysis after method wrapper generation
Also modified test/run.go to ignore messages prefixed <autogenerated>
because those cannot be described with "// ERROR ...", and backed out
patch from issue #9537 because it is no longer necessary.  The reasons
described in the 9537 discussion for why escape analysis cannot run
late no longer hold, happily.

Fixes #11053.

Change-Id: Icb14eccdf2e8cde3d0f8fb8a216b765400a96385
Reviewed-on: https://go-review.googlesource.com/11088
Reviewed-by: Russ Cox <rsc@golang.org>
Run-TryBot: David Chase <drchase@google.com>
2015-06-17 02:36:45 +00:00
Russ Cox
81d5810be9 cmd/compile: merge Node.Opt and Node.Val behind access methods
$ sizeof -p cmd/compile/internal/gc Node
Node 144
$

Change-Id: I688e3790964fe42f48c19f697ec38094a92fe1c1
Reviewed-on: https://go-review.googlesource.com/10531
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-06-04 03:58:41 +00:00
Russ Cox
a53710ffcb cmd/compile: cleanups for Node trimming sequence
Suggested during code reviews of last 15 CLs (or so).

Change-Id: If780f6eb47a7a31df133c64d5dcf0eaf04d8447b
Reviewed-on: https://go-review.googlesource.com/10675
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
2015-06-04 03:58:27 +00:00
Russ Cox
bd4fff6358 cmd/compile: move ODCLFUNC Node.Nname into Node.Func.Nname
$ sizeof -p cmd/compile/internal/gc Node
Node 168
$

Change-Id: I7decd950fe068c0f294c6c9bff07ef809c394429
Reviewed-on: https://go-review.googlesource.com/10534
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
2015-06-03 20:10:17 +00:00
Russ Cox
fd2154f906 cmd/compile: move Node.Curfn into both Node.Func and Node.Name
$ sizeof -p cmd/compile/internal/gc Node
Node 168
$

Change-Id: If624a2d72ec04ef30a1bc7ce76c0d61a526d8a37
Reviewed-on: https://go-review.googlesource.com/10532
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-06-03 20:09:52 +00:00
Russ Cox
3c3019aa51 cmd/compile: move Node.Param, Node.Funcdepth into Node.Name; remove Node.Walkgen
$ sizeof -p cmd/compile/internal/gc Node
Node 176
$

Change-Id: Ibf1ab531a60d4af8a0c242c0e504f4fd50cd5b36
Reviewed-on: https://go-review.googlesource.com/10530
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
2015-06-03 20:09:41 +00:00
Russ Cox
11322d45a1 cmd/compile: move Node.Vargen, Node.Iota into Node.Name
$ sizeof -p cmd/compile/internal/gc Node
Node 192
$

Change-Id: I8f0c1a3cc2bf9c8eff02bbd8d061ff98affc9eb0
Reviewed-on: https://go-review.googlesource.com/10529
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
2015-06-03 20:09:20 +00:00
Russ Cox
ac2bda1b00 cmd/compile: move Node.Pkg to Node.Name.Pkg
$ sizeof -p cmd/compile/internal/gc Node
Node 224
$

Change-Id: Id0969e8df99c43a5f6f8d77a38f20a71a467e7c6
Reviewed-on: https://go-review.googlesource.com/10527
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
2015-06-03 20:07:22 +00:00
Russ Cox
140ef3c59a cmd/compile: move Node.Pack to Node.Name.Pack
$ sizeof -p cmd/compile/internal/gc Node
Node 232
$

Change-Id: I4be025f4ec11f882f24ae7582821d36d3b122b77
Reviewed-on: https://go-review.googlesource.com/10526
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-06-03 19:50:26 +00:00
Russ Cox
71080fbb9e cmd/compile: remove Val.Ctype
$ sizeof -p cmd/compile/internal/gc Node
Node 248
$

Change-Id: I0fbfeb0d0b36e225eb282fce9e480a96ec1d278f
Reviewed-on: https://go-review.googlesource.com/10524
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
2015-06-03 17:50:42 +00:00
Russ Cox
4fdd53680c cmd/compile: move Node.Defn to Node.Name.Defn
$ sizeof -p cmd/compile/internal/gc Node
Node 256
$

Change-Id: I89ac8bbe077664aa076092bfd096947e84c0624c
Reviewed-on: https://go-review.googlesource.com/10523
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
2015-06-03 17:50:35 +00:00
Russ Cox
66be1481df cmd/compile: remove Node.Ntest, Node.Stkdelta
$ sizeof -p cmd/compile/internal/gc Node
Node 272
$

Change-Id: I3d9b67eebfc0be0a4b9768d3de3dc76300abd89c
Reviewed-on: https://go-review.googlesource.com/10521
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
2015-06-03 17:50:19 +00:00
Josh Bleecher Snyder
bd8bb67357 cmd/internal/gc: unembed Param field
This is an automated follow-up to CL 10210.
It was generated with a combination of eg and gofmt -r.

No functional changes. Passes toolstash -cmp.

Change-Id: I35f5897948a270b472d8cf80612071b4b29e9a2b
Reviewed-on: https://go-review.googlesource.com/10253
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2015-05-28 17:46:52 +00:00
David Chase
05d8f1d166 cmd/compile: propagate correct line numbers in treecopy
Added a lineno parameter to treecopy and listtreecopy
(ignored if = 0).  When nodes are copied the copy is
assigned the non-zero lineno (normally this would be
the destination).

Fixes #8183

Change-Id: Iffb767a745093fb89aa08bf8a7692c2f0122be98
Reviewed-on: https://go-review.googlesource.com/10334
Reviewed-by: Russ Cox <rsc@golang.org>
2015-05-27 17:29:15 +00:00
Russ Cox
17eba6e6b7 cmd/compile, cmd/link: create from 5g, 5l, etc
Trivial merging of 5g, 6g, ... into go tool compile,
and similarlly 5l, 6l, ... into go tool link.
The files compile/main.go and link/main.go are new.
Everything else in those directories is a move followed by
change of imports and package name.

This CL breaks the build. Manual fixups are in the next CL.

See golang-dev thread titled "go tool compile, etc" for background.

Change-Id: Id35ff5a5859ad9037c61275d637b1bd51df6828b
Reviewed-on: https://go-review.googlesource.com/10287
Reviewed-by: Dave Cheney <dave@cheney.net>
Reviewed-by: Rob Pike <r@golang.org>
2015-05-21 17:31:51 +00:00