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Commit Graph

3356 Commits

Author SHA1 Message Date
Jan Ziak
fbaf59bf1e cmd/gc: export constants in hexadecimal
R=golang-dev, r, rsc, iant, remyoudompheng, dave
CC=golang-dev
https://golang.org/cl/6206077
2012-05-22 13:53:38 -04:00
Russ Cox
6a22e2fb3f cmd/6a: delete dead code
R=ken2
CC=golang-dev
https://golang.org/cl/6223060
2012-05-22 11:42:44 -04:00
Russ Cox
c4ea1c955e cmd/8a, cmd/8l: add BSWAPL
R=ken2
CC=golang-dev
https://golang.org/cl/6208093
2012-05-22 00:29:07 -04:00
Russ Cox
ed480128a6 cmd/6a, cmd/6l: add BSWAPL, BSWAPQ
R=ken2
CC=golang-dev
https://golang.org/cl/6209087
2012-05-22 00:12:58 -04:00
Russ Cox
8f8640a057 cmd/6g: allow use of R14, R15 now
We stopped reserving them in 2009 or so.

R=ken
CC=golang-dev
https://golang.org/cl/6215061
2012-05-21 12:59:26 -04:00
Russ Cox
9815515df1 cmd/go: fix typo
Fixes #3619.

R=golang-dev, bradfitz, r
CC=golang-dev
https://golang.org/cl/6211055
2012-05-17 02:00:40 -04:00
Shenghou Ma
70db440885 cmd/5c: re-enable regopt()
After CL 6185047, ./all.bash passed.

benchmark                       old ns/op    new ns/op    delta
BenchmarkAppend                      5558         4894  -11.95%
BenchmarkAppendSpecialCase           5242         4572  -12.78%
BenchmarkSelectUncontended           3719         2821  -24.15%
BenchmarkSelectContended             3776         2832  -25.00%
BenchmarkSelectNonblock              1030         1089   +5.73%
BenchmarkChanUncontended              530          422  -20.38%
BenchmarkChanContended                534          444  -16.85%
BenchmarkChanSync                    1613         1492   -7.50%
BenchmarkChanProdCons0               1520         1351  -11.12%
BenchmarkChanProdCons10               785          668  -14.90%
BenchmarkChanProdCons100              564          473  -16.13%
BenchmarkChanProdConsWork0          11205        10337   -7.75%
BenchmarkChanProdConsWork10          9806         9567   -2.44%
BenchmarkChanProdConsWork100         9413         9398   -0.16%
BenchmarkChanCreation               11687         8715  -25.43%
BenchmarkChanSem                      553          453  -18.08%
BenchmarkCallClosure                   22           22   +0.44%
BenchmarkCallClosure1                  28           28   +0.71%
BenchmarkCallClosure2                2224         1668  -25.00%
BenchmarkCallClosure3                2217         1629  -26.52%
BenchmarkCallClosure4                2240         1684  -24.82%
BenchmarkComplex128DivNormal          930          912   -1.94%
BenchmarkComplex128DivNisNaN          862          866   +0.46%
BenchmarkComplex128DivDisNaN          849          852   +0.35%
BenchmarkComplex128DivNisInf          556          583   +4.86%
BenchmarkComplex128DivDisInf          522          512   -1.92%
BenchmarkConvT2E                      175          159   -9.14%
BenchmarkConvT2EBig                  2418         1823  -24.61%
BenchmarkConvT2I                      545          549   +0.73%
BenchmarkConvI2E                       35           32   -9.58%
BenchmarkConvI2I                      404          391   -3.22%
BenchmarkAssertE2T                     75           62  -16.25%
BenchmarkAssertE2TBig                  76           63  -16.80%
BenchmarkAssertE2I                    427          409   -4.22%
BenchmarkAssertI2T                     82           66  -20.29%
BenchmarkAssertI2I                    430          416   -3.26%
BenchmarkAssertI2E                     36           32  -12.50%
BenchmarkAssertE2E                     35           35   +0.57%
BenchmarkFinalizer                   3224         2941   -8.78%
BenchmarkFinalizerRun              117392        84772  -27.79%
BenchmarkStackGrowth                 5267         5930  +12.59%
BenchmarkSyscall                      191          167  -12.57%
BenchmarkSyscallWork                 9918         7713  -22.23%
BenchmarkIfaceCmp100                 1645         1652   +0.43%
BenchmarkIfaceCmpNil100              1433         1440   +0.49%

R=dave, rsc
CC=golang-dev
https://golang.org/cl/6202070
2012-05-17 02:58:14 +08:00
Russ Cox
0c8f469428 cmd/go: invoke godoc with import path when possible
Also add -n -x flags to doc, fmt, vet.
Also shorten unknown command error.

Fixes #3612.
Fixes #3613.

R=golang-dev, bradfitz, r
CC=golang-dev
https://golang.org/cl/6211053
2012-05-15 12:53:57 -04:00
Jan Ziak
f47346c5fc 8l,5l: 2% faster
R=golang-dev, for.go.yong
CC=golang-dev
https://golang.org/cl/6197080
2012-05-15 12:52:18 -04:00
Russ Cox
fcc1f2ac55 cmd/gc: make append(nil, x) error more precise
Before:
./x.go:6: first argument to append must be slice; have nil

After:
./x.go:6: first argument to append must be typed slice; have untyped nil

Fixes #3616.

R=ken2
CC=golang-dev
https://golang.org/cl/6209067
2012-05-15 12:51:58 -04:00
Dmitriy Vyukov
95643647ae runtime: add parallel for algorithm
This is factored out part of:
https://golang.org/cl/5279048/
(parallel GC)

R=bsiegert, mpimenov, rsc, minux.ma, r
CC=golang-dev
https://golang.org/cl/5986054
2012-05-11 10:50:03 +04:00
Francisco Souza
25a8a8dab8 cmd/go: fix remote help reference to "go help packages"
go help remote used to reference "go help importpath", which has
changed to "go help packages".

Fixes #3598.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/6201065
2012-05-09 16:16:02 +10:00
Nigel Tao
c8332198f4 go: fix the import path "./..." not matching ".".
Tested manually.

Fixes #3554.

Before:
$ cd $GOROOT/src/pkg
$ go list io
io
$ go list io/...
io
io/ioutil
$ cd $GOROOT/src/pkg/io
$ go list .
io
$ go list ./...
io/ioutil

After:
$ cd $GOROOT/src/pkg
$ go list io
io
$ go list io/...
io
io/ioutil
$ cd $GOROOT/src/pkg/io
$ go list .
io
$ go list ./...
io
io/ioutil
$ go list ././...
io
io/ioutil
$ go list ././.././io/...
io
io/ioutil
$ go list ../image
image
$ go list ../image/...
image
image/color
image/draw
image/gif
image/jpeg
image/png
$ go list ../.../template
html/template
text/template
$ cd $GOROOT/src/pkg
$ go list ./io
io
$ go list ./io/...
io
io/ioutil
$ go list ./.../pprof
net/http/pprof
runtime/pprof
$ go list ./compress
can't load package: package compress: no Go source files in /home/nigeltao/go/src/pkg/compress
$ go list ./compress/...
compress/bzip2
compress/flate
compress/gzip
compress/lzw
compress/zlib
$ cd $GOROOT/src/pkg/code.google.com
$ go list ./p/leveldb-go/...
code.google.com/p/leveldb-go/leveldb
code.google.com/p/leveldb-go/leveldb/crc
code.google.com/p/leveldb-go/leveldb/db
code.google.com/p/leveldb-go/leveldb/memdb
code.google.com/p/leveldb-go/leveldb/memfs
code.google.com/p/leveldb-go/leveldb/record
code.google.com/p/leveldb-go/leveldb/table
code.google.com/p/leveldb-go/manualtest/filelock
$ go list ./p/.../truetype
code.google.com/p/freetype-go/example/truetype
code.google.com/p/freetype-go/freetype/truetype
$ go list ./p/.../example
warning: "./p/.../example" matched no packages
$ go list ./p/.../example/...
code.google.com/p/freetype-go/example/freetype
code.google.com/p/freetype-go/example/gamma
code.google.com/p/freetype-go/example/raster
code.google.com/p/freetype-go/example/round
code.google.com/p/freetype-go/example/truetype
code.google.com/p/x-go-binding/example/imgview
code.google.com/p/x-go-binding/example/xgb

R=rsc
CC=golang-dev
https://golang.org/cl/6194056
2012-05-09 10:43:15 +10:00
Shenghou Ma
dac4c3eee9 cmd/cgo, cmd/cc, cmd/ld: detect dynamic linker automatically
Some newer Linux distributions (Ubuntu ARM at least) use a new multiarch
directory organization, where dynamic linker is no longer in the hardcoded
path in our linker.
For example, Ubuntu 12.04 ARM hardfloat places its dynamic linker at
/lib/arm-linux-gnueabihf/ld-linux.so.3

Ref: http://lackof.org/taggart/hacking/multiarch/

Also, to support Debian GNU/kFreeBSD as a FreeBSD variant, we need this capability, so it's part of issue 3533.

This CL add a new pragma (#pragma dynlinker "path") to cc.

R=iant, rsc
CC=golang-dev
https://golang.org/cl/6086043
2012-05-05 01:54:16 +08:00
Shenghou Ma
e7a0a7595a cmd/go: cgo for Linux/ARM
Part 4 of CL 5601044 (cgo: Linux/ARM support)

R=golang-dev, dave, rsc
CC=golang-dev
https://golang.org/cl/5989058
2012-05-04 18:29:40 +08:00
Shenghou Ma
9602dd5e87 cmd/cgo: support Linux/ARM
Part 3 of CL 5601044 (cgo: Linux/ARM support)

R=golang-dev, dave, rsc
CC=golang-dev
https://golang.org/cl/5991066
2012-05-04 18:26:16 +08:00
Shenghou Ma
452a9e452b cmd/5l, cmd/ld: dynamic linking library support
Part 1 of CL 5601044 (cgo: Linux/ARM support)
        Limitation: doesn't support thumb library yet.

R=golang-dev, dave, rsc
CC=golang-dev
https://golang.org/cl/5991065
2012-05-04 18:14:26 +08:00
Shenghou Ma
278d4a583d cmd/5c, cmd/5a, cmd/5l: ARM support for PREFETCH built-in
R=rsc
CC=golang-dev
https://golang.org/cl/6174049
2012-05-04 03:24:14 +08:00
Shenghou Ma
52ec4aa24a cmd/dist: remove stray src/pkg/runtime/z* when cleaning
R=golang-dev, bradfitz, dave, rsc, lstoakes, rsc
CC=golang-dev
https://golang.org/cl/6180044
2012-05-04 00:58:48 +08:00
Russ Cox
d42495aa80 cmd/cc: add PREFETCH built-in (like SET, USED)
This makes it possible to inline the prefetch of upcoming
memory addresses during garbage collection, instead of
needing to flush registers, make a function call, and
reload registers.  On garbage collection-heavy workloads,
this results in a 5% speedup.

Fixes #3493.

R=dvyukov, ken, r, dave
CC=golang-dev
https://golang.org/cl/5990066
2012-05-02 16:22:56 -04:00
Anthony Martin
3859032980 build: dist-based build for Plan 9
R=rsc, iant, iant, seed
CC=golang-dev
https://golang.org/cl/5608059
2012-05-01 22:32:46 -07:00
Ian Lance Taylor
82e30c681c cgo: rename C names for Go types to avoid conflicting with package
Fixes #3371.

R=rsc, bsiegert, r, mtj, iant
CC=golang-dev
https://golang.org/cl/6131060
2012-05-01 09:04:13 -07:00
Robert Hencke
84ce0f7687 cmd/go: do not ignore DepsErrors in 'go run'
Fixes #3490.

R=golang-dev, dave, rsc
CC=golang-dev
https://golang.org/cl/6040046
2012-04-30 17:00:24 -04:00
Russ Cox
d09943aeaf cmd/go: new tag selection logic
The new logic is "use go1 if it's there, otherwise no tag."
Nothing needs to say "I require go1.0.1", and I want to
preserve some flexibility in defining what tags mean.

Right now (before go1.0.1) there is only one possible tag,
"go1", and I'd like to keep it that way.

R=golang-dev, bradfitz, r, adg
CC=golang-dev
https://golang.org/cl/6112060
2012-04-26 14:25:28 -04:00
Anthony Martin
42aa9abae9 gc: use correct line number for EOF syntax error
I also added some debugging code that's turned
on with -xx.

Fixes #3392.

R=rsc, lvd
CC=golang-dev
https://golang.org/cl/5909058
2012-04-26 02:57:23 -07:00
Shenghou Ma
e412761488 cmd/godoc: update App Engine README and script for Go 1
R=adg, dsymonds
CC=golang-dev
https://golang.org/cl/5849053
2012-04-26 14:24:53 +08:00
Rob Pike
97a7defed4 vet: check values for named constants as well as literals.
As in:
        const format = "%s"
        fmt.Printf(format, "hi")
Also fix a couple of bugs by rewriting the routine.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6099057
2012-04-25 12:14:38 +10:00
Shenghou Ma
dee62a440c cmd/5g: fix URL typo
R=golang-dev, rsc, bradfitz
CC=golang-dev
https://golang.org/cl/5919054
2012-04-24 23:17:16 +08:00
Luuk van Dijk
5583060c4c cmd/gc: fix addresses escaping through closures called in-place.
Fixes #3545.

R=rsc
CC=golang-dev
https://golang.org/cl/6061043
2012-04-23 15:39:01 -04:00
Anthony Martin
3192cac587 cmd/prof: don't build on Plan 9 for now.
R=golang-dev, bradfitz, akumar
CC=golang-dev
https://golang.org/cl/5629054
2012-04-16 17:36:36 -07:00
Rémy Oudompheng
061061e77c cmd/6g: restore magic multiply for /=, %=.
Also enables turning /= 2 in a right shift.

Part of issue 2230.

R=rsc
CC=golang-dev, remy
https://golang.org/cl/6012049
2012-04-13 10:12:31 +02:00
Shenghou Ma
1a59e6239c 5l, runtime: remove softfloat emulation code when not used
This leads to ~30kB improvement on code size for ARM machines with VFP/NEON.
Example: go test -c math
       GOARM=5  GOARM=6
  Old: 1884200  1839144
  New: 1884165  1805245
  -:        35    33899

R=rsc, bradfitz, dave, kai.backman
CC=golang-dev
https://golang.org/cl/5975060
2012-04-11 04:11:27 +08:00
Shenghou Ma
2031252fb8 5a, 5l: add PLD (preload data) instruction
Supported in ARMv5TE and above, excluding ARMv5TExP.
        For CL 5990066.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5999044
2012-04-11 04:09:04 +08:00
Russ Cox
e530d6a1e0 6c, 6g, 6l: add MOVQL to make truncation explicit
Without an explicit signal for a truncation, copy propagation
will sometimes propagate a 32-bit truncation and end up
overwriting uses of the original 64-bit value.

The case that arose in practice is in C but I believe
that the same could plausibly happen in Go.
The main reason we didn't run into the same in Go
is that I (perhaps incorrectly?) drop MOVL AX, AX
during gins, so the truncation was never generated, so
it didn't confuse the optimizer.

Fixes #1315.
Fixes #3488.

R=ken2
CC=golang-dev
https://golang.org/cl/6002043
2012-04-10 12:51:59 -04:00
Russ Cox
b72c7e943c cmd/6c: fix probable code gen bug
This is a pointer being copied; MOVL can't possibly be right.

R=ken2
CC=golang-dev
https://golang.org/cl/5999043
2012-04-10 12:51:36 -04:00
Russ Cox
30bc5d7bbd cmd/8c: fix store to complex uint64 ptr
Assignment of a computed uint64 value to an
address derived with a function call was executing
the call after computing the value, which trashed
the value (held in registers).

long long *f(void) { return 0; }
void g(int x, int y) {
        *f() = (long long)x | (long long)y<<32;
}

Before:

(x.c:3)	TEXT	g+0(SB),(gok(71))
...
(x.c:4)	ORL	AX,DX
(x.c:4)	ORL	CX,BX
(x.c:4)	CALL	,f+0(SB)
(x.c:4)	MOVL	DX,(AX)
(x.c:4)	MOVL	BX,4(AX)

After:
(x.c:3)	TEXT	g+0(SB),(gok(71))
(x.c:4)	CALL	,f+0(SB)
...
(x.c:4)	ORL	CX,BX
(x.c:4)	ORL	DX,BP
(x.c:4)	MOVL	BX,(AX)
(x.c:4)	MOVL	BP,4(AX)

Fixes #3501.

R=ken2
CC=golang-dev
https://golang.org/cl/5998043
2012-04-10 10:45:58 -04:00
Shenghou Ma
edf8b03fef cmd/api: allow addition of API
R=bradfitz, rsc
CC=golang-dev
https://golang.org/cl/5991081
2012-04-10 22:12:09 +08:00
Russ Cox
3d462449f6 8a, 8l: add PREFETCH instructions
R=ken2
CC=golang-dev
https://golang.org/cl/5992082
2012-04-10 10:09:27 -04:00
Russ Cox
35d260fa4c 6a, 6l: add PREFETCH instructions
R=ken2
CC=golang-dev
https://golang.org/cl/5989073
2012-04-10 10:09:09 -04:00
Alexey Borzenkov
0669261af1 cmd/dist: don't fail when Mercurial is a batch file on Windows
On windows Mercurial installed with easy_install typically creates
an hg.bat batch file in Python Scripts directory, which cannot be used
with CreateProcess unless full path is specified. Work around by
launching hg via cmd.exe /c.

Additionally, fix a rare FormatMessageW crash.

Fixes #3093.

R=golang-dev, rsc, alex.brainman, aram, jdpoirier, mattn.jp
CC=golang-dev
https://golang.org/cl/5937043
2012-04-09 15:39:59 -04:00
Benny Siegert
f6d582db61 cmd/yacc: spring cleaning for units.y
* sort imports
* use runtime.GOROOT
* fix some typos

R=golang-dev, dave, rsc
CC=golang-dev
https://golang.org/cl/5987054
2012-04-09 15:04:59 -04:00
Brad Fitzpatrick
a8197456b1 cmd/go: in go get, don't try to perform discovery on non-hosts
Before, "go get -v foo/bar" was assuming "foo" was a hostname
and trying to perform discovery on it. Now, require a dot in
the first path component (the hostname).

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5981057
2012-04-04 07:24:13 -07:00
Shenghou Ma
bcdafaa582 5c, 6c, 8c: take GOROOT_FINAL into consideration
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5936050
2012-04-04 00:04:36 +08:00
Shenghou Ma
6af069f3e1 5a, 6a, 8a: take GOROOT_FINAL into consideration
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5940052
2012-04-04 00:03:42 +08:00
Shenghou Ma
96da953d86 godoc: update appinit.go, apply !appengine build constrain to main.go
R=adg, dsymonds
CC=golang-dev
https://golang.org/cl/5969063
2012-04-04 00:00:26 +08:00
Ryan Hitchman
8a686792e0 gc: improve error message for composite literals with unexpected newlines
R=golang-dev, r, rsc
CC=golang-dev
https://golang.org/cl/5857045
2012-04-02 11:00:55 -04:00
Shenghou Ma
a9de5bb3eb cmd/dist, sudo.bash: don't mention sudo.bash if cov or prof is not present
Fixes #3422.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5967057
2012-04-02 22:33:38 +08:00
Robert Griesemer
5b5b42ea84 godoc: replace servePage's positional argument list
R=golang-dev, adg, bradfitz
CC=golang-dev
https://golang.org/cl/5869050
2012-03-30 10:42:56 -07:00
Rob Pike
efb134f8bf cmd/go: update docs about tags for get command
"go1" dominates. Delete the text about weekly and release.
We can revisit this once the situation changes.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5969043
2012-03-30 13:07:10 +11:00
Andrew Gerrand
d71d11fa93 cmd/godoc: use virtual filesystem to implement -templates flag
R=golang-dev, gri, rsc
CC=golang-dev
https://golang.org/cl/5921045
2012-03-28 09:13:48 +11:00