Although bnum was being called with a Bits value, a limitation
of the escape analyser (golang/go#12588) meant that taking the
address of the Bits.b array in the range statement caused the
formal parameter to escape to the heap.

Passing the a pointer to a Bits, as with all the other Bits helper
methods avoids the allocation.

Before:
BenchmarkBnum1-4        20000000                69.6 ns/op            32 B/op          1 allocs/op

After:
BenchmarkBnum1-4        100000000               10.1 ns/op             0 B/op          0 allocs/op

Change-Id: I673bd57ddc032ee67d09474156d795fb1ba72018
Reviewed-on: https://go-review.googlesource.com/14501Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

Fixes #12578.

Change-Id: I257d70a67609463e24936bc1739285da154be2fe
Reviewed-on: https://go-review.googlesource.com/14531Reviewed-by: Rob Pike <r@golang.org>

The current version of go/printer formats the following code
like this:

	foo.Bar().
		Run(func() {
		do()
	}).
		Set(map[string]interface{}{
		"x": "three",
		"y": 4,
	}).
		Run(
		func() {
			do()
		},
	)

This CL changes the go/printer behaviour to make the code look
like this.

	foo.Bar().
		Run(func() {
			do()
		}).
		Set(map[string]interface{}{
			"x": "three",
			"y": 4,
		}).
		Run(
			func() {
				do()
			},
		)

Fixes #12066.

Change-Id: If0f525dae1a5d45f9ba40534dbb65715d7e8001b
Reviewed-on: https://go-review.googlesource.com/13928Reviewed-by: Robert Griesemer <gri@golang.org>

Fixes #11626.

Change-Id: I1b70c0844473c3b57a53d7cca747ea5cdc68d232
Reviewed-on: https://go-review.googlesource.com/14526
Run-TryBot: Rob Pike <r@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Simplify slice/map literal expressions.
Caught with gofmt -d -s, fixed with gofmt -w -s

Change-Id: I639cfb02b1f57dea4087863df3995889c9371529
Reviewed-on: https://go-review.googlesource.com/13837Reviewed-by: Andrew Gerrand <adg@golang.org>

Simplify slice/map literal expression.
Caught with gofmt -d -s

Change-Id: I7f38ef9fb528e2fd284bd0f190fbdf4a91956e55
Reviewed-on: https://go-review.googlesource.com/13834Reviewed-by: Andrew Gerrand <adg@golang.org>

Simplify slice/map literal expression.
Caught with gofmt -d -s, fixed with gofmt -w -s

Change-Id: I4472c6003cf66e65f6e69050872ff95c96f01253
Reviewed-on: https://go-review.googlesource.com/13836Reviewed-by: Andrew Gerrand <adg@golang.org>

Simplify slice/map literal expressions.
Caught with gofmt -d -s, fixed with gofmt -w -s
Checked that the result can still be compiled with Go 1.4.

Change-Id: I06bce110bb5f46ee2f45113681294475aa6968bc
Reviewed-on: https://go-review.googlesource.com/13839Reviewed-by: Andrew Gerrand <adg@golang.org>

Simplify slice/map literal expressions.
Caught with gofmt -d -s, fixed with gofmt -w -s
Checked that the result can still be compiled with Go 1.4.

Change-Id: I201cd90fdfb8de2971c46ad7fce64111152b697e
Reviewed-on: https://go-review.googlesource.com/13832Reviewed-by: Andrew Gerrand <adg@golang.org>

One (12466) was an actual logic error, backing up when there was
nothing there. The others were due to continuing to process an
instruction when it cannot work.

Methodically stop assembling an instruction when it's not going to
succeed.

Fixes #12466.
Fixes #12467.
Fixes #12468.

Change-Id: I88c568f2b9c1a8408043b2ac5a78f5e2ffd62abd
Reviewed-on: https://go-review.googlesource.com/14498Reviewed-by: Andrew Gerrand <adg@golang.org>

If comment of the archive contains data which looks like
a zip64 directory, the comment is parsed as an
actual directory header.
Commit adds some additional checks similar to the checks
in minizip library.

Fixes #12449

Change-Id: Ia0fc950e47b9c39f77d88401b9ca30100ca7c808
Reviewed-on: https://go-review.googlesource.com/14433
Run-TryBot: Andrew Gerrand <adg@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Andrew Gerrand <adg@golang.org>

cmd/dist will re-exec itself to detect VFP support at run-time.

Fixes #9732, #12548.

Change-Id: I9ad0c5c7fa3e97bd79a32da372e1a962565bb3af
Reviewed-on: https://go-review.googlesource.com/3973Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Change-Id: I3d37391af2089881a5bd4d8f3e5d434b279c272e
Reviewed-on: https://go-review.googlesource.com/14490Reviewed-by: Chris Manghane <cmang@golang.org>

It was correct for an early version of the CL which introduced the
type, but later versions of the CL changed the behavior without
updating the documentation.

Fixes #12568

Change-Id: Ia4090a02ba122e9f8317ed86c4c9839ae2c539e0
Reviewed-on: https://go-review.googlesource.com/14496Reviewed-by: Ian Lance Taylor <iant@golang.org>

Simplify slice/map literal expressions.
Caught with gofmt -d -s, fixed with gofmt -w -s
Checked that the result can still be compiled with Go 1.4.

Change-Id: I0a6773d12200a7b43491f25f914335069a1fa5e8
Reviewed-on: https://go-review.googlesource.com/13833Reviewed-by: Andrew Gerrand <adg@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

Fixes #12531.

Change-Id: I66dc7ac1b71b8f72b4a8f3ec18befa2607ef358b
Reviewed-on: https://go-review.googlesource.com/14494Reviewed-by: Rob Pike <r@golang.org>

Change-Id: Ie86b703407f0f655a4552dd6e03df5f263be43db
Reviewed-on: https://go-review.googlesource.com/14492Reviewed-by: Rob Pike <r@golang.org>

The construction
	fmt.Printf("%*d", n, 4)
reads the argument n as a width specifier to use when printing 4.
Until now, only strict int type was accepted here and it couldn't
be fixed because the fix, using reflection, broke escape analysis
and added an extra allocation in every Printf call, even those that
do not use this feature.

The compiler has been fixed, although I am not sure when exactly,
so let's fix Printf and then write

Fixes #10732.

Change-Id: I79cf0c4fadd876265aa39d3cb62867247b36ab65
Reviewed-on: https://go-review.googlesource.com/14491Reviewed-by: Ian Lance Taylor <iant@golang.org>

In Parse, one can now say Feb 31 or even Feb 99. This is easy
to explain, consistent with time.Date, and even maybe useful.

Fixes #12333.
Fixes #7268. (By disagreeing with it.)

Change-Id: I7b95c842528bed66933681c8b9cc00640fccfcb4
Reviewed-on: https://go-review.googlesource.com/14123Reviewed-by: Ian Lance Taylor <iant@golang.org>

Updates #11241

Change-Id: I0614c5a9a7a4c399ad5d664f36c70c3210911905
Reviewed-on: https://go-review.googlesource.com/14356Reviewed-by: Robert Griesemer <gri@golang.org>

this leaves lots of cruft behind, will delete that soon

Change-Id: I12d6b6192f89bcdd89b2b0873774bd3458373b8a
Reviewed-on: https://go-review.googlesource.com/14196Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

Disassembler for mips64 is not supported yet.

Change-Id: Ie923dd1e37fed47fc395b9d1cd9194e55020bee5
Reviewed-on: https://go-review.googlesource.com/14459Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Because external linking is not supported for now.

Change-Id: Icdd8f3cb3bfb781a990e529fce9129d91e98a9ec
Reviewed-on: https://go-review.googlesource.com/14457Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

It went out of its way to look for implicit assignments
but never checked explicit assignments.

This detects the root bug for #12099.

Change-Id: I6a6e774cc38749ea8be7cfd58ba6421247b67000
Reviewed-on: https://go-review.googlesource.com/13646Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Rob Pike <r@golang.org>

CL 14315 broke the tests for parsing loosely formed remote package
metadata. Switch the parsing to use RawToken to recover the previous
behaviour that Token provided.

It could be argued that the parser should be stricter, but as remote
metadata has been readable with the parser for several years, it is
safer to change the parser to continue to accept the samples provided
in the test cases.

Change-Id: I2a3ba1757d3cff53b1a1c4386276955bb46cf8cd
Reviewed-on: https://go-review.googlesource.com/14482Reviewed-by: Minux Ma <minux@golang.org>
Run-TryBot: Minux Ma <minux@golang.org>
Reviewed-by: Andrew Gerrand <adg@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

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: Ie02d2cf35f1e8438c6e9dc1d5fba51e8adde1bc0
Reviewed-on: https://go-review.googlesource.com/14480Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

Update #12563.

Change-Id: Id87f8e53586accd662575c31961c39787268df7a
Reviewed-on: https://go-review.googlesource.com/14471
Run-TryBot: Minux Ma <minux@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Dave Cheney <dave@cheney.net>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Fixes #12350.

Change-Id: I3dcb0e2190c11f83f15fb07cc637fead54f734f7
Reviewed-on: https://go-review.googlesource.com/14275Reviewed-by: Ian Lance Taylor <iant@golang.org>

Currently, the xml.Decoder's Token routine returns successfully for
XML input that does not properly close root start elements (and any
unclosed descendants). For example, all the following inputs

    <root>
    <root><foo>
    <root><foo></foo>

cause Token to return with nil and io.EOF, indicating a successful
parse.

This change fixes that. It leaves the semantics of RawToken intact.

Fixes #11405

Change-Id: I6f1328c410cf41e17de0a93cf357a69f12c2a9f7
Reviewed-on: https://go-review.googlesource.com/14315Reviewed-by: Nigel Tao <nigeltao@golang.org>

The previous automated updates only added missing entries for commits
since Go 1.4, with the assumption that we were caught up on things
prior to that. (Initially motivated by the existence of junk email
address jokes in the early git history, which I initially didn't want
to whitelist)

But it turns out we were missing lots of stuff, at least for subrepos
prior to N months ago.

This is an update with all subrepos updated, with no date
restrictions.

Change-Id: I2b5580ae4f89ae9ba7eaa336cc54ce6d606c5379
Reviewed-on: https://go-review.googlesource.com/14409Reviewed-by: Ian Lance Taylor <iant@golang.org>

Context: #12149. The problem there is that contents of
<script type="text/template"> are treated as JS, and thus // is treated
as regexp.

Preserve context.attr while we are in the attribute, in particular in
stateBeforeValue, so we have attr when reading attr value.

Next CL will actually fix the bug.

Change-Id: I99add2237b0885ecdcc08b4f7c25d0af99173e53
Reviewed-on: https://go-review.googlesource.com/14335Reviewed-by: Rob Pike <r@golang.org>

Check reflect.Value.IsValid() before calling other reflect.Value methods
that panic on zero values.

Added tests for cases with untyped nils. They panicked without these fixes.

Removed a TODO.

Fixes #12356

Change-Id: I9b5cbed26db09a0a7c36d99a93f8b9729899d51e
Reviewed-on: https://go-review.googlesource.com/14340Reviewed-by: Rob Pike <r@golang.org>

Keep track of which types of keys need an update and which don't.

Strings need an update because the new key might pin a smaller backing store.
Floats need an update because it might be +0/-0.
Interfaces need an update because they may contain strings or floats.

Fixes #11088

Change-Id: I9ade53c1dfb3c1a2870d68d07201bc8128e9f217
Reviewed-on: https://go-review.googlesource.com/10843Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

In support of the changes required for #8609, it was suggested that
syscall.getwd() be updated to work on Solaris first since the runtime
uses it and today it's unimplemented.

Fixes #12507

Change-Id: Ifb58ac9db8540936d5685c2c58bdc465dbc836cb
Reviewed-on: https://go-review.googlesource.com/14420Reviewed-by: Aram Hăvărneanu <aram@mgk.ro>

Trivial fix: set unexported=true for builtin.
Godoc itself has a similar hack.

Fixes #12541

Change-Id: Ib701f867d117931eb6ec6de223941b52eb6cd4a7
Reviewed-on: https://go-review.googlesource.com/14441Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Fixes #12440

Change-Id: Iead77fe34d986cfd5c16bac671fe13c8d012a754
Reviewed-on: https://go-review.googlesource.com/14178Reviewed-by: Rob Pike <r@golang.org>

Change-Id: I33c0425361c98b175d8d87e0f7e44946bfb3e3fa
Reviewed-on: https://go-review.googlesource.com/14440Reviewed-by: Rob Pike <r@golang.org>

We compute whether two keys k1 and k2 in a map literal are duplicates by
constructing the expression OEQ(k1, k2) and calling the constant
expression evaluator on that expression, then extracting the boolean
result.

Unfortunately, the constant expression evaluator can fail for various
reasons.  I'm not really sure why it is dying in the case of 12536, but
to be safe we should use the result only if we get a constant back (if
we get a constant back, it must be boolean).  This probably isn't a
permanent fix, but it should be good enough for 1.5.2.

A permanent fix would be to ensure that the constant expression
evaluator can always work for map literal keys, and if not the compiler
should generate an error saying that the key isn't a constant (or isn't
comparable to some specific other key).

This patch has the effect of allowing the map literal to compile when
constant eval of the OEQ fails.  If the keys are really equal (which the
map impl will notice at runtime), one will overwrite the other in the
resulting map.  Not great, but better than a compiler crash.

Fixes #12536

Change-Id: Ic151a5e3f131c2e8efa0c25c9218b431c55c1b30
Reviewed-on: https://go-review.googlesource.com/14400Reviewed-by: Ian Lance Taylor <iant@golang.org>

Convert two fields of struct TempVar in popt.go from uint8 to bool.

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

Change-Id: I1aa14313e0241a4e9cadd63c6c681ed4e965a9a3
Reviewed-on: https://go-review.googlesource.com/14377Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

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/14378Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>