1
0
mirror of https://github.com/golang/go synced 2024-11-18 15:34:53 -07:00
Commit Graph

22985 Commits

Author SHA1 Message Date
David Crawshaw
c5befcf0a7 misc/cgo/testcarchive: check that os.Args is set
Change-Id: I4278abca9d2a8f25149fa8935a93d32e7d04a43a
Reviewed-on: https://go-review.googlesource.com/9050
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: David Crawshaw <crawshaw@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2015-04-17 22:29:51 +00:00
Matthew Dempsky
4d01922e46 encoding/gob: fix hang from skipping large slices
Change-Id: I4e59b5b1702e08d7c6191d0a70fb0a555f3340c8
Reviewed-on: https://go-review.googlesource.com/9061
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Rob Pike <r@golang.org>
2015-04-17 22:04:34 +00:00
Rob Pike
223ab4dbcc doc/go1.5.txt: go generate: add $GOLINE
Change-Id: I9968ce162996e71843eeaf9764d216c401427fed
Reviewed-on: https://go-review.googlesource.com/9040
Reviewed-by: Rob Pike <r@golang.org>
2015-04-17 20:35:01 +00:00
Rob Pike
7df2854f70 doc/articles/go_command.html: mention go generate
Fix some out-of-date remarks.

Fixes #10489.

Change-Id: I8f0cce2588828052a5d013e7bac6bcfeb220579d
Reviewed-on: https://go-review.googlesource.com/9008
Reviewed-by: Russ Cox <rsc@golang.org>
2015-04-17 20:33:25 +00:00
Rob Pike
9c3bf097c8 cmd/go: add $GOLINE to generate
Also use os.Expand for variable substitution so ${x}y works.

Fixes #9960.

Change-Id: Ic8239b2e737d1f41910dde8ee9524ac48907cb03
Reviewed-on: https://go-review.googlesource.com/9007
Reviewed-by: Russ Cox <rsc@golang.org>
2015-04-17 20:33:01 +00:00
Josh Bleecher Snyder
13cb62c764 cmd/internal/gc, cmd/6g: generate boolean values without jumps
Use SETcc instructions instead of Jcc to generate boolean values.
This generates shorter, jump-free code, which may in turn enable other
peephole optimizations.

For example, given

func f(i, j int) bool {
	return i == j
}

Before

"".f t=1 size=32 value=0 args=0x18 locals=0x0
	0x0000 00000 (x.go:3)	TEXT	"".f(SB), $0-24
	0x0000 00000 (x.go:3)	FUNCDATA	$0, gclocals·b4c25e9b09fd0cf9bb429dcefe91c353(SB)
	0x0000 00000 (x.go:3)	FUNCDATA	$1, gclocals·33cdeccccebe80329f1fdbee7f5874cb(SB)
	0x0000 00000 (x.go:4)	MOVQ	"".i+8(FP), BX
	0x0005 00005 (x.go:4)	MOVQ	"".j+16(FP), BP
	0x000a 00010 (x.go:4)	CMPQ	BX, BP
	0x000d 00013 (x.go:4)	JEQ	21
	0x000f 00015 (x.go:4)	MOVB	$0, "".~r2+24(FP)
	0x0014 00020 (x.go:4)	RET
	0x0015 00021 (x.go:4)	MOVB	$1, "".~r2+24(FP)
	0x001a 00026 (x.go:4)	JMP	20

After

"".f t=1 size=32 value=0 args=0x18 locals=0x0
	0x0000 00000 (x.go:3)	TEXT	"".f(SB), $0-24
	0x0000 00000 (x.go:3)	FUNCDATA	$0, gclocals·b4c25e9b09fd0cf9bb429dcefe91c353(SB)
	0x0000 00000 (x.go:3)	FUNCDATA	$1, gclocals·33cdeccccebe80329f1fdbee7f5874cb(SB)
	0x0000 00000 (x.go:4)	MOVQ	"".i+8(FP), BX
	0x0005 00005 (x.go:4)	MOVQ	"".j+16(FP), BP
	0x000a 00010 (x.go:4)	CMPQ	BX, BP
	0x000d 00013 (x.go:4)	SETEQ	"".~r2+24(FP)
	0x0012 00018 (x.go:4)	RET

regexp benchmarks, best of 12 runs:

benchmark                                 old ns/op      new ns/op      delta
BenchmarkNotOnePassShortB                 782            733            -6.27%
BenchmarkLiteral                          180            171            -5.00%
BenchmarkNotLiteral                       2855           2721           -4.69%
BenchmarkMatchHard_32                     2672           2557           -4.30%
BenchmarkMatchHard_1K                     80182          76732          -4.30%
BenchmarkMatchEasy1_32M                   76440180       73304748       -4.10%
BenchmarkMatchEasy1_32K                   68798          66350          -3.56%
BenchmarkAnchoredLongMatch                482            465            -3.53%
BenchmarkMatchEasy1_1M                    2373042        2292692        -3.39%
BenchmarkReplaceAll                       2776           2690           -3.10%
BenchmarkNotOnePassShortA                 1397           1360           -2.65%
BenchmarkMatchClass_InRange               3842           3742           -2.60%
BenchmarkMatchEasy0_32                    125            122            -2.40%
BenchmarkMatchEasy0_32K                   11414          11164          -2.19%
BenchmarkMatchEasy0_1K                    668            654            -2.10%
BenchmarkAnchoredShortMatch               260            255            -1.92%
BenchmarkAnchoredLiteralShortNonMatch     164            161            -1.83%
BenchmarkOnePassShortB                    623            612            -1.77%
BenchmarkOnePassShortA                    801            788            -1.62%
BenchmarkMatchClass                       4094           4033           -1.49%
BenchmarkMatchEasy0_32M                   14078800       13890704       -1.34%
BenchmarkMatchHard_32K                    4095844        4045820        -1.22%
BenchmarkMatchEasy1_1K                    1663           1643           -1.20%
BenchmarkMatchHard_1M                     131261708      129708215      -1.18%
BenchmarkMatchHard_32M                    4210112412     4169292003     -0.97%
BenchmarkMatchMedium_32K                  2460752        2438611        -0.90%
BenchmarkMatchEasy0_1M                    422914         419672         -0.77%
BenchmarkMatchMedium_1M                   78581121       78040160       -0.69%
BenchmarkMatchMedium_32M                  2515287278     2498464906     -0.67%
BenchmarkMatchMedium_32                   1754           1746           -0.46%
BenchmarkMatchMedium_1K                   52105          52106          +0.00%
BenchmarkAnchoredLiteralLongNonMatch      185            185            +0.00%
BenchmarkMatchEasy1_32                    107            107            +0.00%
BenchmarkOnePassLongNotPrefix             505            505            +0.00%
BenchmarkOnePassLongPrefix                147            147            +0.00%

The godoc binary is ~0.12% smaller after this CL.

Updates #5729.

toolstash -cmp passes for all architectures other than amd64 and amd64p32.

Other architectures can be done in follow-up CLs.

Change-Id: I0e167e259274b722958567fc0af83a17ca002da7
Reviewed-on: https://go-review.googlesource.com/2284
Reviewed-by: Russ Cox <rsc@golang.org>
2015-04-17 20:12:18 +00:00
Ian Lance Taylor
9c1868d06d runtime: add -buildmode=c-archive/c-shared support for linux/386
Change-Id: I87147ca6bb53e3121cc4245449c519509f107638
Reviewed-on: https://go-review.googlesource.com/9009
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: David Crawshaw <crawshaw@golang.org>
2015-04-17 19:31:37 +00:00
Russ Cox
17228f44b2 cmd/internal/gc: make use of new String methods in prints
$ sam -d cmd/internal/gc/*.{go,y} cmd/?g/*.go
X ,s/, (gc\.)?[BFHNST]conv\(([^()]+), 0\)/, \2/g
X/'/w
q
$

Change-Id: Ic28a4807d237b8ae53ceca1e4e7fdb43580ab560
Reviewed-on: https://go-review.googlesource.com/9032
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
2015-04-17 19:29:25 +00:00
Russ Cox
96c91fa9db cmd/internal/gc: add String methods to *Mpint, *Mpflt, *Node, *NodeList, *Sym, *Type
The next CL will remove unnecessary conv calls.

Change-Id: I0e8dbd1756cdec1ef6095ae67629cd3fae0fb4a4
Reviewed-on: https://go-review.googlesource.com/9031
Reviewed-by: Austin Clements <austin@google.com>
2015-04-17 19:29:15 +00:00
Russ Cox
8e5346571c runtime: leave gccheckmark testing off by default
It's not helping anymore, and it's fooling people who try to
understand performance (like me).

Change-Id: I133a644acae0ddf1bfa17c654cdc01e2089da963
Reviewed-on: https://go-review.googlesource.com/9018
Reviewed-by: Austin Clements <austin@google.com>
2015-04-17 19:29:04 +00:00
Ian Lance Taylor
449969a4ac cmd/internal/ld, cmd/dist: support -buildmode=c-archive on linux
Change-Id: I8c97751a79b57197428b0f0b66fc9575708a2eb0
Reviewed-on: https://go-review.googlesource.com/8979
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: David Crawshaw <crawshaw@golang.org>
2015-04-17 18:35:53 +00:00
Austin Clements
c1c667542c runtime: fix dangling pointer in readyExecute
readyExecute passes a closure to mcall that captures an argument to
readyExecute. Since mcall is marked noescape, this closure lives on
the stack of the calling goroutine. However, the closure puts the
calling goroutine on the run queue (and switches to a new
goroutine). If the calling goroutine gets scheduled before the mcall
returns, this stack-allocated closure will become invalid while it's
still executing. One consequence of this we've observed is that the
captured gp variable can get overwritten before the call to
execute(gp), causing execute(gp) to segfault.

Fix this by passing the currently captured gp variable through a field
in the calling goroutine's g struct so that the func is no longer a
closure.

To prevent problems like this in the future, this change also removes
the go:noescape annotation from mcall. Due to a compiler bug, this
will currently cause a func closure passed to mcall to be implicitly
allocated rather than refusing the implicit allocation. However, this
is okay because there are no other closures passed to mcall right now
and the compiler bug will be fixed shortly.

Fixes #10428.

Change-Id: I49b48b85de5643323b89e9eaa4df63854e968c32
Reviewed-on: https://go-review.googlesource.com/8866
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Russ Cox <rsc@golang.org>
2015-04-17 17:59:14 +00:00
Rob Pike
6302641c98 doc/go1.5.txt: go generate -run
Change-Id: I8029640fe74731d7847390f371af37b85dec96cc
Reviewed-on: https://go-review.googlesource.com/9006
Reviewed-by: Rob Pike <r@golang.org>
2015-04-17 17:50:55 +00:00
Rob Pike
2807572ab0 cmd/go: implement the long-promised -run flag for go generate
Trivial to do, but overlooked for 1.4, which is good because I prefer
the new design, which is just to match against the source code of
the line rather than the command word alone.

Change-Id: Idcf7c4479e97bb7cd732f0d058012321b6057628
Reviewed-on: https://go-review.googlesource.com/9005
Reviewed-by: Russ Cox <rsc@golang.org>
2015-04-17 17:49:14 +00:00
Brad Fitzpatrick
27067df9db cmd/internal/obj: cleanups from C transition and delete dead code
Change-Id: Id1ecad2565edd5937a764dcf56b89263353f47c2
Reviewed-on: https://go-review.googlesource.com/8947
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
2015-04-17 17:28:17 +00:00
Michael Matloob
485f348979 regexp: set b.cap[0] and b.cap[1] only when captures requested
Fixes #10319

Change-Id: I96015b0e1dff30a72de11fea3837638b5c672891
Reviewed-on: https://go-review.googlesource.com/8501
Reviewed-by: Russ Cox <rsc@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
2015-04-17 17:10:07 +00:00
Hyang-Ah Hana Kim
92189a2be2 misc/cgo/testcshared: test -buildmode=c-shared
Followed the same test pattern in misc/cgo/testcarchive.

Change-Id: I2f863b5c24a28f0b38b0128ed3e8a92c17fb5b9f
Reviewed-on: https://go-review.googlesource.com/8985
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-04-17 16:16:44 +00:00
Russ Cox
a5e48cf023 cmd/internal/gc: fix node print
Change-Id: I0d2b909ceeba9da86c77de4ce23d7c6063f8f10f
Reviewed-on: https://go-review.googlesource.com/9017
Reviewed-by: Minux Ma <minux@golang.org>
2015-04-17 14:57:51 +00:00
Dave Cheney
7ae9d06880 runtime/pprof: disable TestTraceStressStartStop
Updates #10476

Change-Id: Ic4414f669104905c6004835be5cf0fa873553ea6
Reviewed-on: https://go-review.googlesource.com/8962
Reviewed-by: Russ Cox <rsc@golang.org>
2015-04-17 14:54:25 +00:00
Russ Cox
a2ef54b51e fmt: adjust formatting of invalid reflect.Value, add more tests
Repeat of CL 8951.

Change-Id: I5430e4a9eb5d8b7d0e3963657092bede67439056
Reviewed-on: https://go-review.googlesource.com/9003
Reviewed-by: Rob Pike <r@golang.org>
2015-04-17 14:14:39 +00:00
David Crawshaw
c8aba85e4a runtime: export main.main for android
Previously we started the Go runtime from a JNI function call, which
eventually called the program's main function. Now the runtime is
initialized by an ELF initialization function as a c-shared library,
and the program's main function is not called. So now we export main
so it can be called from JNI.

This is necessary for all-Go apps because unlike a normal shared
library, the program loading the library is not written by or known
to the programmer. As far as they are concerned, the .so is
everything. In fact the same code is compiled for iOS as a normal Go
program.

Change-Id: I61c6a92243240ed229342362231b1bfc7ca526ba
Reviewed-on: https://go-review.googlesource.com/9015
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
2015-04-17 12:11:04 +00:00
David Crawshaw
5da1c254d5 runtime: do not run main when buildmode=c-shared
Change-Id: Ie7f85873978adf3fd5c739176f501ca219592824
Reviewed-on: https://go-review.googlesource.com/9011
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-04-17 11:31:01 +00:00
Matthew Dempsky
810bbfe6f8 go/build: deps check all std packages
Instead of only checking packages that are already listed in pkgDeps,
apply deps checks to all standard library packages.

To avoid slowing testing down too much, instead of running "go list
std" in a subprocess like cmd/api or cmd/dist, this test manually
walks the GOROOT src directory to enumerate packages.

Timings on an HP Z620 using linux/amd64:

    	short	full
before	0.092s	4.880s
after	0.137s	5.104s

Additionally, a handful of packages that were previously unchecked are
now listed, along with their current dependencies.  These should
probably eventually be moved elsewhere and assigned appropriate
allowable-dependency sets.  For now, they've been grandfathered in by
simply assigning them their current dependencies, so that followup CLs
can review them individually as appropriate.

Fixes #10475.

Change-Id: I83ffd8ff329092f664bf3e3f2c9e3dad8e77ac02
Reviewed-on: https://go-review.googlesource.com/9001
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Russ Cox <rsc@golang.org>
2015-04-17 05:37:45 +00:00
Nigel Tao
7f983f2f8e compress/flate: simplify the TestDegenerateHuffmanCoding data.
Change-Id: I223a4bd6e3ee31324b46ac79a4022e40f1868491
Reviewed-on: https://go-review.googlesource.com/8995
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2015-04-17 04:31:48 +00:00
Josh Bleecher Snyder
4a7e5bca3c cmd/internal/gc: clean up bgen
This cleanup is in anticipation of implementing
jump-free booleans (CL 2284) and zero-aware
comparisons (issue 10381).

No functional changes. Passes toolstash -cmp.

Change-Id: I50f394c60fa2927e177d7fc85b75085060a9e912
Reviewed-on: https://go-review.googlesource.com/8738
Reviewed-by: Russ Cox <rsc@golang.org>
2015-04-17 03:25:21 +00:00
Russ Cox
6a2b0c0b6d runtime: delete cgo_allocate
This memory is untyped and can't be used anymore.
The next version of SWIG won't need it.

Change-Id: I592b287c5f5186975ee09a9b28d8efe3b57134e7
Reviewed-on: https://go-review.googlesource.com/8956
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-04-17 01:30:47 +00:00
Mikio Hara
89b7c66d0d net: fix inconsistent error values on Dial, Listen partially
This change makes TestDialError, TestListenError work without any
external dependency, enables them by default, and removes unnecessary
-run_error_test flag for fixing #4856.

Also fixes inconsistent error values on Dial, Listen partially as a
first stab.

Updates #4856.

Change-Id: Ie10c151ae06759085f352c7db2ca45107a81914f
Reviewed-on: https://go-review.googlesource.com/8903
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-04-17 00:42:57 +00:00
Mikio Hara
3185cfbfbb net: rename netFD.proto to netFD.net on Plan 9
In followup changes, we'll move OpError around from the netFD layer to
the Conn layer for fixing #4856. Before doing that, this change makes
netFD of Plan 9 match netFD for POSIX platforms to avoid conflict.

Change-Id: Iea7632716d48722a1758e52effefec964a3a9442
Reviewed-on: https://go-review.googlesource.com/8990
Reviewed-by: David du Colombier <0intro@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-04-17 00:09:13 +00:00
Nigel Tao
28388c4eb1 image/color: have Palette.Index honor alpha for closest match, not just
red, green and blue.

Fixes #9902

Change-Id: Ibffd0aa2f98996170e39a919296f69e9d5c71545
Reviewed-on: https://go-review.googlesource.com/8907
Reviewed-by: Rob Pike <r@golang.org>
2015-04-16 23:52:41 +00:00
Shenghou Ma
f68f554d4e doc: mention darwin/arm64 port in go1.5.txt
Change-Id: I3b3f80791a1db4c2b7318f81a115972cd2237f08
Signed-off-by: Shenghou Ma <minux@golang.org>
Reviewed-on: https://go-review.googlesource.com/8787
Reviewed-by: David Crawshaw <crawshaw@golang.org>
2015-04-16 21:07:00 +00:00
David Crawshaw
46b4f675bf cmd/internal/ld: use usual flooding for c-archive
I said I removed this from cl/8711 in response to your comment, but
apparently I did not.

misc/cgo/testcarchive continues to pass on darwin/amd64.

Change-Id: I6410782f2a78bf117741628fb71cac56e289b590
Reviewed-on: https://go-review.googlesource.com/9010
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-04-16 20:01:13 +00:00
David Crawshaw
5b72b8c7a3 runtime: aeshash stubs for arm64
For some reason the absense of an implementation does not stop arm64
binaries being built. However it comes up with -buildmode=c-archive.

Change-Id: Ic0db5fd8fb4fe8252b5aa320818df0c7aec3db8f
Reviewed-on: https://go-review.googlesource.com/8989
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-04-16 19:49:31 +00:00
Michael Hudson-Doyle
62353ff876 cmd/go: have go run, go list respect -buildmode/-linkshared
Change-Id: I749fd91cd3c7581cdcc97a15e8eeee0c20f0b259
Reviewed-on: https://go-review.googlesource.com/8805
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
2015-04-16 19:25:32 +00:00
David Crawshaw
e8b7133e9b runtime: darwin/arm64 c-archive entry point
Change-Id: Ib227aa3e14d01a0ab1ad9e53d107858e045d1c42
Reviewed-on: https://go-review.googlesource.com/8984
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-04-16 18:56:54 +00:00
David du Colombier
3eadc59b0d net: fix typo in comment
Change-Id: I8b2063e65d3454a694a789c1682dacfe0bea2e19
Reviewed-on: https://go-review.googlesource.com/8965
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-04-16 18:45:05 +00:00
Jonathan Rudenberg
c1e73dd286 crypto/tls: fix test data generation
- Multiple GetCertificate tests shared the same name and were
  overwriting each other, each test now has a unique name.
- expectAlert was not implemented in the data updater, the single
  test that used it has been replaced with a ClientHello failure
  test.

Fixes #10470

Change-Id: I500738f6302ffa863d7ee45d85fa8773155e0614
Reviewed-on: https://go-review.googlesource.com/8959
Reviewed-by: Adam Langley <agl@golang.org>
Run-TryBot: Adam Langley <agl@golang.org>
2015-04-16 18:16:37 +00:00
David Crawshaw
9cde36be54 runtime/cgo: enable arm64 EXC_BAD_ACCESS handler
Change-Id: I8e912ff9327a4163b63b8c628aa3546e86ddcc02
Reviewed-on: https://go-review.googlesource.com/8983
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
2015-04-16 18:00:57 +00:00
Brad Fitzpatrick
db1f9cdd3f Revert "fmt: add a few more reflect.Value tests"
This reverts commit 3e6b7f35de.

Change-Id: Icad2b235b9880729fbdf80d7dfd71e56df4b1231
Reviewed-on: https://go-review.googlesource.com/8944
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-04-16 16:58:41 +00:00
Shenghou Ma
f633e445c7 crypto/x509: build the builtin root certs also for darwin/arm64
Change-Id: I3b3f80791a1db4c2b7318f81a115972cd2237f06
Signed-off-by: Shenghou Ma <minux@golang.org>
Reviewed-on: https://go-review.googlesource.com/8785
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-04-16 16:50:30 +00:00
Brad Fitzpatrick
015c760893 os: clarify that ModePerm permission bits are the Unix ones
Fixes #7075

Change-Id: I57fcebaaef768b00263b6b91211b1434f6a4b229
Reviewed-on: https://go-review.googlesource.com/8919
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
2015-04-16 16:42:10 +00:00
Russ Cox
3e6b7f35de fmt: add a few more reflect.Value tests
Change-Id: I86530a4fd240f3e056e3277355d2965f6863b852
Reviewed-on: https://go-review.googlesource.com/8951
Reviewed-by: Rob Pike <r@golang.org>
2015-04-16 16:29:58 +00:00
Alexandre Cesaro
6b045d9aef mime/quotedprintable: Return a Reader instead of an io.Reader
It is not needed right now, but it will allow more flexibility in
the future.

Fixes #10472

Change-Id: I2eaea70abeca5ed10f89b0b2dfdabdac376a0a41
Reviewed-on: https://go-review.googlesource.com/8964
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-04-16 16:18:26 +00:00
Michael Hudson-Doyle
2f0828ef7c reflect, cmd/internal/gc: look for pointer types by string before synthesizing
The ptrto field of the type data cannot be relied on when dynamic linking: a
type T may be defined in a module that makes no use of pointers to that type,
but another module can contain a package that imports the first one and does use
*T pointers.  The second module will end up defining type data for *T and a
type.*T symbol pointing at it. It's important that calling .PtrTo() on the
refect.Type for T returns this type data and not some synthesized object, so we
need reflect to be able to find it!

Fortunately, the reflect package already has a mechanism for doing this sort of
thing: ChanOf/MapOf/etc look for pre-existing type data by name.  So this change
just extends PtrTo() to consult this too, and changes the compiler to include
pointer types in the data consulted when compiling for dynamic linking.

Change-Id: I3773c066fd0679a62e9fc52a84bf64f1d67662b7
Reviewed-on: https://go-review.googlesource.com/8232
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
2015-04-16 16:11:07 +00:00
Josh Bleecher Snyder
8fd1ec232f misc/ios: fix teamID and appID use in entitlements
This is a follow-up to CL 8910.
This is the version that I have tested and which works
when appID and teamID are not the same (which they appear
to be for the builder).

I am unsure how I submitted it with the wrong code.

Change-Id: I186e34e91953d082b507390c1cd2042e5419c4c9
Reviewed-on: https://go-review.googlesource.com/8943
Reviewed-by: David Crawshaw <crawshaw@golang.org>
2015-04-16 15:58:45 +00:00
Josh Bleecher Snyder
e040fd4654 cmd/internal/gc: registerize more in 7g and 9g
7g and 9g disagree with componentgen
about what type len and cap have.

This results in an etype mismatch,
which inhibits registerization.

Fixing this results in 7406 more registerizations
while building the stdlib.
There are still 1512 missed opportunities.

This should improve the performance benefit
to 7g of enabling componentgen (CL 8636).

This CL reduces the size of godoc by 203k (-1.177%).

This was discovered by using the diagnostics
added in CL 8732 and running:

GOARCH=arm64 GOOS=linux go build -gcflags="-d registerization" std

See CL 91850043 for similar earlier fixes for 6g and 8g.

Change-Id: I57f478228a000ad7529d4136bad94a51343c4daa
Reviewed-on: https://go-review.googlesource.com/8733
Reviewed-by: Dave Cheney <dave@cheney.net>
Reviewed-by: Keith Randall <khr@golang.org>
2015-04-16 15:50:37 +00:00
Aram Hăvărneanu
8262a8fbef cmd/7g: change CHECKNIL sequence
We can use CBNZ instruction and make it one instruction shorter.

Saves 66kB in godoc.

Change-Id: Ie71fe7cf31e7f73644ee926f4f9624c009c3eb1a
Reviewed-on: https://go-review.googlesource.com/8634
Reviewed-by: Minux Ma <minux@golang.org>
2015-04-16 13:31:16 +00:00
Aram Hăvărneanu
a6bade60b0 cmd/7g: remove loads that only load an immediate to be later used by ADD/SUB
Optimize the sequence:
	MOV $imm, Rt
	ADD Rt, Rs, Rd

into:
	ADD $imm, Rs, Rd

Saves 66k in godoc.

Change-Id: I27b4aaa0ec80a59472fe2e5816efdf3db9c901ee
Reviewed-on: https://go-review.googlesource.com/8632
Reviewed-by: Minux Ma <minux@golang.org>
2015-04-16 13:31:02 +00:00
Shenghou Ma
4a71b91d29 runtime: darwin/arm64 support
Change-Id: I3b3f80791a1db4c2b7318f81a115972cd2237f03
Signed-off-by: Shenghou Ma <minux@golang.org>
Reviewed-on: https://go-review.googlesource.com/8782
Reviewed-by: David Crawshaw <crawshaw@golang.org>
2015-04-16 13:01:19 +00:00
Shenghou Ma
110fa22c45 misc/cgo/test: skip issue3261 test on darwin/arm64
Because there is no libgcc.

Change-Id: I3b3f80791a1db4c2b7318f81a115972cd2237f07
Signed-off-by: Shenghou Ma <minux@golang.org>
Reviewed-on: https://go-review.googlesource.com/8786
Reviewed-by: David Crawshaw <crawshaw@golang.org>
2015-04-16 13:00:47 +00:00
David Crawshaw
bfd441f745 iostest.bash: run detect.go as part of iostest
Change-Id: I402629b154ae36c879a8d5088cb0f71b075f31dc
Reviewed-on: https://go-review.googlesource.com/8958
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
2015-04-16 12:59:54 +00:00