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77 Commits

Author SHA1 Message Date
Matthew Dempsky
db506fe98c cmd/compile: change get{this,inarg,outarg}x? into methods 
More idiomatic naming (in particular, matches the naming used for
go/types.Signature).

Also, convert more code to use these methods and/or IterFields.
(Still more to go; only made a quick pass for low hanging fruit.)

Passes toolstash -cmp.

Change-Id: I61831bfb1ec2cd50d4c7efc6062bca4e0dcf267b
Reviewed-on: https://go-review.googlesource.com/20451
Reviewed-by: Ian Lance Taylor <iant@golang.org>
 2016-03-09 01:29:18 +00:00
Ian Lance Taylor
c4012b6bbb cmd/compile: remove nodesOrNodeList outside of syntax.go 
Passes toolstash -cmp.

Update #14473.

Change-Id: I717ebd948dfc8faf8b9ef5aa02c67484af618d18
Reviewed-on: https://go-review.googlesource.com/20359
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
 2016-03-08 18:54:23 +00:00
Matthew Dempsky
c3dfad5df9 cmd/compile: change Oconv to take an Op parameter 
Eliminates type conversions in a bunch of Oconv(int(n.Op), ...) calls.

Notably, this identified a misuse of Oconv in amd64/gsubr.go to try to
print an assembly instruction op instead of a compiler node op.

Change-Id: I93b5aa49fe14a5eaf868b05426d3b8cd8ab52bc5
Reviewed-on: https://go-review.googlesource.com/20298
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
 2016-03-07 17:27:05 +00:00
Matthew Dempsky
4ab1793a78 cmd/compile: convert asmlist to []*Node 
Updates #14473.

Change-Id: I88745c2a6119dea3b81b57299e70a2a7e4c584a8
Reviewed-on: https://go-review.googlesource.com/20272
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
 2016-03-05 04:08:12 +00:00
Ian Lance Taylor
55c65d4a97 cmd/compile: change export.go and fmt.go to use nodeSeq 
Also fix some uses of nodeSeqIterator.Len, and fix the implementation in
nodesIterator.

Passes toolstash -cmp.

Update #14473.

Change-Id: I228871470234b7f1314ffd2aae8a4c0624c35f98
Reviewed-on: https://go-review.googlesource.com/20231
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
 2016-03-04 21:46:30 +00:00
Robert Griesemer
b83f3972fe cmd/compile: use int32 for line numbers consistently 
- removed lots of unnecessary int(x) casts
- removed parserline() - was inconsistently used anyway
- minor simplifications in dcl.go

Change-Id: Ibf7de679eea528a31c9692ef1c76a1d9b3239211
Reviewed-on: https://go-review.googlesource.com/20131
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
 2016-03-02 19:32:41 +00:00
Ian Lance Taylor
1d5001afef cmd/compile: change Node.Nbody, Func.Inl from *NodeList to Nodes 
Passes toolstash -cmp.

Casual timings show about a 3% improvement in compile times.

Update #14473.

Change-Id: I584add2e8f1a52486ba418b25ba6122b7347b643
Reviewed-on: https://go-review.googlesource.com/19989
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
 2016-02-29 00:33:32 +00:00
Matthew Dempsky
d930d69fd9 cmd/compile: make -A and -newexport compatible 
Packages compiled with -A may reference the builtin "any" type, so it
needs to be included in the list of predeclared types for binary
import/export.

Also, when -A is used, mark all symbols as SymExport instead of
SymPackage in importsym.  This parallels the logic in autoexport and
is necessary to prevent a "export/package mismatch" errors in
exportsym during dumpexport's verifyExport pass.

Change-Id: Iff5ec5fbfe2219525ec9d1a975307fa8936af9b9
Reviewed-on: https://go-review.googlesource.com/19627
Reviewed-by: Robert Griesemer <gri@golang.org>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
 2016-02-19 21:42:04 +00:00
David Chase
ab5d2bf92f cmd/compile: suppress export of Note field within exported bodies 
Added a format option to inhibit output of .Note field in
printing, and enabled that option during export.
Added test.

Fixes #13777.

Change-Id: I739f9785eb040f2fecbeb96d5a9ceb8c1ca0f772
Reviewed-on: https://go-review.googlesource.com/18217
Reviewed-by: Russ Cox <rsc@golang.org>
Run-TryBot: David Chase <drchase@google.com>
 2016-01-05 15:42:12 +00:00
Marvin Stenger
8e7a3ea11e cmd/compile/internal: named types for Etype and Op in struct Node 
Type Op is enfored now.
Type EType will need further CLs.
Added TODOs where Node.EType is used as a union type.
The TODOs have the format `TODO(marvin): Fix Node.EType union type.`.

Furthermore:
-The flag of Econv function in fmt.go is removed, since unused.
-Some cleaning along the way, e.g. declare vars first when getting initialized.

Passes go build -toolexec 'toolstash -cmp' -a std.

Fixes #11846

Change-Id: I908b955d5a78a195604970983fb9194bd9e9260b
Reviewed-on: https://go-review.googlesource.com/14956
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Marvin Stenger <marvin.stenger94@gmail.com>
 2015-10-30 20:12:37 +00:00
Robert Griesemer
cd7d7382bb cmd/compile/internal/gc: introduce type for decl contexts/storage classes 
Change-Id: I956e27fa07f16060b8f41b986d991c36557f7c12
Reviewed-on: https://go-review.googlesource.com/16332
Reviewed-by: Keith Randall <khr@golang.org>
 2015-10-26 22:18:42 +00:00
Robert Griesemer
e6ccfc1ad1 cmd/compile/internal/gc: escape binary export data so it contains no '$' 
Necessary to ensure that subsequent tools can continue to find
then end of the export data section simply by searching for "$$".

Adjusted gcimporter used by go/types accordingly.

Also, fixed a bug in gcimporter related to reading export data
in debug format.

Change-Id: Iaea4ed05edd8a5bab28ebe5b19a4740f5e537d35
Reviewed-on: https://go-review.googlesource.com/16283
Reviewed-by: Chris Manghane <cmang@golang.org>
 2015-10-26 17:27:17 +00:00
Jeremy Jackins
6327e8dc69 cmd/compile/internal/gc: update old c-style comments 
Update old c-style comments to look like Go comments. Also replace some
lingering references to old .c files that don't exist anymore.

Change-Id: I72b2407a40fc76c23e9048643e0622fd70b4cf90
Reviewed-on: https://go-review.googlesource.com/16190
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
 2015-10-23 15:33:50 +00:00
Robert Griesemer
ae2f54a771 cmd/compile/internal/gc: compact binary export format 
The binary import/export format is significantly more
compact than the existing textual format. It should
also be faster to read and write (to be measured).

Use -newexport to enable, for instance:
export GO_GCFLAGS=-newexport; make.bash

The compiler can import packages using both the old
and the new format ("mixed mode").

Missing: export info for inlined functions bodies
(performance issue, does not affect correctness).

Disabled by default until we have inlined function
bodies and confirmation of no regression and equality
of binaries.

For #6110.
For #1909.

This change depends on:

   https://go-review.googlesource.com/16220
   https://go-review.googlesource.com/16222

(already submitted) for all.bash to work.

Some initial export data sizes for std lib packages. This data
is without exported functions with inlineable function bodies.

Package                                       old      new    new/old

archive/tar.................................13875.....3883    28%
archive/zip.................................19464.....5046    26%
bufio....................................... 7733.....2222    29%
bytes.......................................10342.....3347    32%
cmd/addr2line.................................242.......26    11%
cmd/api.....................................39305....10368    26%
cmd/asm/internal/arch.......................27732.....7939    29%
cmd/asm/internal/asm........................35264....10295    29%
cmd/asm/internal/flags........................629......178    28%
cmd/asm/internal/lex........................39248....11128    28%
cmd/asm.......................................306.......26     8%
cmd/cgo.....................................40197....10570    26%
cmd/compile/internal/amd64...................1106......214    19%
cmd/compile/internal/arm....................27891.....7710    28%
cmd/compile/internal/arm64....................891......153    17%
cmd/compile/internal/big....................21637.....8336    39%
cmd/compile/internal/gc....................109845....29727    27%
cmd/compile/internal/mips64...................972......168    17%
cmd/compile/internal/ppc64....................972......168    17%
cmd/compile/internal/x86.....................1104......195    18%
cmd/compile...................................329.......26     8%
cmd/cover...................................12986.....3749    29%
cmd/dist......................................477.......67    14%
cmd/doc.....................................23043.....6793    29%
cmd/expdump...................................167.......26    16%
cmd/fix......................................1190......208    17%
cmd/go......................................26399.....5629    21%
cmd/gofmt.....................................499.......26     5%
cmd/internal/gcprog..........................1342......490    37%
cmd/internal/goobj...........................2690......980    36%
cmd/internal/obj/arm........................32740....10057    31%
cmd/internal/obj/arm64......................46542....15364    33%
cmd/internal/obj/mips.......................42140....13731    33%
cmd/internal/obj/ppc64......................42140....13731    33%
cmd/internal/obj/x86........................52732....19015    36%
cmd/internal/obj............................36729....11690    32%
cmd/internal/objfile........................36365....10287    28%
cmd/link/internal/amd64.....................45893....12220    27%
cmd/link/internal/arm.........................307.......96    31%
cmd/link/internal/arm64.......................345.......98    28%
cmd/link/internal/ld.......................109300....46326    42%
cmd/link/internal/ppc64.......................344.......99    29%
cmd/link/internal/x86.........................334......107    32%
cmd/link......................................314.......26     8%
cmd/newlink..................................8110.....2544    31%
cmd/nm........................................210.......26    12%
cmd/objdump...................................244.......26    11%
cmd/pack....................................14248.....4066    29%
cmd/pprof/internal/commands..................5239.....1285    25%
cmd/pprof/internal/driver...................37967.....8860    23%
cmd/pprof/internal/fetch....................30962.....7337    24%
cmd/pprof/internal/plugin...................47734.....7719    16%
cmd/pprof/internal/profile..................22286.....6922    31%
cmd/pprof/internal/report...................31187.....7838    25%
cmd/pprof/internal/svg.......................4315......965    22%
cmd/pprof/internal/symbolizer...............30051.....7397    25%
cmd/pprof/internal/symbolz..................28545.....6949    24%
cmd/pprof/internal/tempfile.................12550.....3356    27%
cmd/pprof.....................................563.......26     5%
cmd/trace....................................1455......636    44%
cmd/vendor/golang.org/x/arch/arm/armasm....168035....64737    39%
cmd/vendor/golang.org/x/arch/x86/x86asm.....26871.....8578    32%
cmd/vet.....................................38980.....9913    25%
cmd/vet/whitelist.............................102.......49    48%
cmd/yacc.....................................2518......926    37%
compress/bzip2...............................6326......129     2%
compress/flate...............................7069.....2541    36%
compress/gzip...............................20143.....5069    25%
compress/lzw..................................828......295    36%
compress/zlib...............................10676.....2692    25%
container/heap................................523......181    35%
container/list...............................3517......740    21%
container/ring................................881......229    26%
crypto/aes....................................550......187    34%
crypto/cipher................................1966......825    42%
crypto.......................................1836......646    35%
crypto/des....................................632......235    37%
crypto/dsa..................................18718.....5035    27%
crypto/ecdsa................................23131.....6097    26%
crypto/elliptic.............................20790.....5740    28%
crypto/hmac...................................455......186    41%
crypto/md5...................................1375......171    12%
crypto/rand.................................18132.....4748    26%
crypto/rc4....................................561......240    43%
crypto/rsa..................................22094.....6380    29%
crypto/sha1..................................1416......172    12%
crypto/sha256.................................551......238    43%
crypto/sha512.................................839......378    45%
crypto/subtle................................1153......250    22%
crypto/tls..................................58203....17984    31%
crypto/x509/pkix............................29447.....8161    28%
database/sql/driver..........................3318.....1096    33%
database/sql................................11258.....3942    35%
debug/dwarf.................................18416.....7006    38%
debug/elf...................................57530....21014    37%
debug/gosym..................................4992.....2058    41%
debug/macho.................................23037.....6538    28%
debug/pe....................................21063.....6619    31%
debug/plan9obj...............................2467......802    33%
encoding/ascii85.............................1523......360    24%
encoding/asn1................................1718......527    31%
encoding/base32..............................2642......686    26%
encoding/base64..............................3077......800    26%
encoding/binary..............................4727.....1040    22%
encoding/csv................................12223.....2850    23%
encoding......................................383......217    57%
encoding/gob................................37563....10113    27%
encoding/hex.................................1327......390    29%
encoding/json...............................30897.....7804    25%
encoding/pem..................................595......200    34%
encoding/xml................................37798.....9336    25%
errors........................................274.......36    13%
expvar.......................................3155.....1021    32%
flag........................................19860.....2849    14%
fmt..........................................3137.....1263    40%
go/ast......................................44729....13422    30%
go/build....................................16336.....4657    29%
go/constant..................................3703......846    23%
go/doc.......................................9877.....2807    28%
go/format....................................5472.....1575    29%
go/importer..................................4980.....1301    26%
go/internal/gccgoimporter....................5587.....1525    27%
go/internal/gcimporter.......................8979.....2186    24%
go/parser...................................20692.....5304    26%
go/printer...................................7015.....2029    29%
go/scanner...................................9719.....2824    29%
go/token.....................................7933.....2465    31%
go/types....................................64569....19978    31%
hash/adler32.................................1176......176    15%
hash/crc32...................................1663......360    22%
hash/crc64...................................1587......306    19%
hash/fnv.....................................3964......260     7%
hash..........................................591......278    47%
html..........................................217.......74    34%
html/template...............................69623....12588    18%
image/color/palette...........................315.......98    31%
image/color..................................5565.....1036    19%
image/draw...................................6917.....1028    15%
image/gif....................................8894.....1654    19%
image/internal/imageutil.....................9112.....1476    16%
image/jpeg...................................6647.....1026    15%
image/png....................................6906.....1069    15%
image.......................................28992.....6139    21%
index/suffixarray...........................17106.....4773    28%
internal/singleflight........................1614......506    31%
internal/testenv............................12212.....3152    26%
internal/trace...............................2762.....1323    48%
io/ioutil...................................13502.....3682    27%
io...........................................6765.....2482    37%
log.........................................11620.....3317    29%
log/syslog..................................13516.....3821    28%
math/big....................................21819.....8320    38%
math/cmplx...................................2816......438    16%
math/rand....................................2317......929    40%
math.........................................7511.....2444    33%
mime/multipart..............................12679.....3360    27%
mime/quotedprintable.........................5458.....1235    23%
mime.........................................6076.....1628    27%
net/http/cgi................................59796....17173    29%
net/http/cookiejar..........................14781.....3739    25%
net/http/fcgi...............................57861....16426    28%
net/http/httptest...........................84100....24365    29%
net/http/httputil...........................67763....18869    28%
net/http/internal............................6907......637     9%
net/http/pprof..............................57945....16316    28%
net/http....................................95391....30210    32%
net/internal/socktest........................4555.....1453    32%
net/mail....................................14481.....3608    25%
net/rpc/jsonrpc.............................33335......988     3%
net/rpc.....................................79950....23106    29%
net/smtp....................................57790....16468    28%
net/textproto...............................11356.....3248    29%
net/url......................................3123.....1009    32%
os/exec.....................................20738.....5769    28%
os/signal.....................................437......167    38%
os..........................................24875.....6668    27%
path/filepath...............................11340.....2826    25%
path..........................................778......285    37%
reflect.....................................15469.....5198    34%
regexp......................................13627.....4661    34%
regexp/syntax................................5539.....2249    41%
runtime/debug................................9275.....2322    25%
runtime/pprof................................1355......477    35%
runtime/race...................................39.......17    44%
runtime/trace.................................228.......92    40%
runtime.....................................13498.....1821    13%
sort.........................................2848......842    30%
strconv......................................2947.....1252    42%
strings......................................7983.....2456    31%
sync/atomic..................................2666.....1149    43%
sync.........................................2568......845    33%
syscall.....................................81252....38398    47%
testing/iotest...............................2444......302    12%
testing/quick...............................18890.....5076    27%
testing.....................................16502.....4800    29%
text/scanner.................................6849.....2052    30%
text/tabwriter...............................6607.....1863    28%
text/template/parse.........................22978.....6183    27%
text/template...............................64153....11518    18%
time........................................12103.....3546    29%
unicode......................................9706.....3320    34%
unicode/utf16................................1055......148    14%
unicode/utf8.................................1118......513    46%
vendor/golang.org/x/net/http2/hpack..........8905.....2636    30%

All packages                              3518505  1017774    29%

Change-Id: Id657334f276383ff1e6fa91472d3d1db5a03349c
Reviewed-on: https://go-review.googlesource.com/13937
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Chris Manghane <cmang@golang.org>
 2015-10-22 21:01:29 +00:00
Håvard Haugen
c1ad904bdb cmd/compile/internal/gc: remove unnecessary stringsCompare 
Remove several uses of stringsCompare.

Passes go build -a -toolexec 'toolstash -cmp' std cmd.

Change-Id: I3f2323df2ad8c03bad77e0a91d6e2e714803705b
Reviewed-on: https://go-review.googlesource.com/14556
Reviewed-by: Dave Cheney <dave@cheney.net>
 2015-09-16 00:08:58 +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
Marvin Stenger
e03c7896a7 cmd/compile/internal/gc: convert fields of Pkg to bool 
Convert Pkg.Imported, Pkg.Exported, Pkg.Direct from uint8/int8/int8 to bool.

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

Change-Id: I67a71f1186ff9737c03eca413f7d35d8a79ebc9b
Reviewed-on: https://go-review.googlesource.com/14371
Run-TryBot: Dave Cheney <dave@cheney.net>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
 2015-09-08 15:53:06 +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
Robert Griesemer
3d3bc88bb5 cmd/compile/internal/gc: use slice instead of linked list for nodes to export 
Change-Id: Ib79ab787fdc90a5a29b25474d91afa9bfaf51276
Reviewed-on: https://go-review.googlesource.com/13589
Reviewed-by: Minux Ma <minux@golang.org>
 2015-08-28 22:49:15 +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
0f6da8923f cmd/internal/gc: add -buildid flag to write build ID into object file 
The build ID is an opaque token supplied by the build system.
The compiler writes it out early in the Go export metadata
(the second line), in a way that does not bother existing readers.

The intent is that the go command can use this to store information
about the sources for the generated code, so that it can detect
stale packages even in cases (like removed files) where mtimes fail.

Change-Id: Ib5082515d6cde8a07a8d4b5c69d1e8e4190cb5e1
Reviewed-on: https://go-review.googlesource.com/9153
Reviewed-by: Ian Lance Taylor <iant@golang.org>
 2015-06-03 20:43:51 +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
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
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
Russ Cox
ffef180f82 cmd/compile: remove Node.Nincr, Node.Nelse, Node.Initplan 
$ sizeof -p cmd/compile/internal/gc Node
Node 288
$

Change-Id: I4e316efa246132b3faa3a892e4fe9c9039250665
Reviewed-on: https://go-review.googlesource.com/10520
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
 2015-06-03 17:50:11 +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
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