R=rsc
CC=golang-dev
https://golang.org/cl/199070

R=kaib
CC=golang-dev
https://golang.org/cl/207062

not trying to be secure, just not repetitive
(sending with the same id repeatedly makes
some resolvers stop replying.)

eventually we'll replace this with linking against
the system's native resolver.

R=p
CC=golang-dev
https://golang.org/cl/207051

R=kaib
CC=golang-dev
https://golang.org/cl/206059

 * specialize sweepspan as sweepspan0 and sweepspan1.
 * in sweepspan1, inline "free" to avoid expensive mlookup.

R=iant
CC=golang-dev
https://golang.org/cl/206060

R=iant
CC=golang-dev
https://golang.org/cl/207054

Fixes #586.

R=rsc
CC=golang-dev
https://golang.org/cl/203060

Fixes #406.

R=adg
CC=golang-dev
https://golang.org/cl/207053

R=adg
CC=golang-dev
https://golang.org/cl/207050

R=adg
CC=golang-dev
https://golang.org/cl/207052

TBR=agl1
CC=golang-dev
https://golang.org/cl/207055

Added tests and benchmarks for Exp2 (special cases same
as Exp). Log1p also enhances speed of inverse hyperbolics.

R=rsc
CC=golang-dev
https://golang.org/cl/206058

  * add bit tracking finalizer status, avoiding getfinalizer lookup
  * add ability to allocate uncleared memory

R=iant
CC=golang-dev
https://golang.org/cl/207044

R=rsc
CC=golang-dev
https://golang.org/cl/186160

apparently some versions of GNU make cannot
handle the %: %.$O rule.  i don't understand why
and don't care enough to find out.

R=agl1
CC=golang-dev
https://golang.org/cl/206055

since they were causing a silent program exit (too many EPIPE's).

R=rsc
CC=golang-dev
https://golang.org/cl/204062

function arguments.

R=rsc
CC=golang-dev
https://golang.org/cl/206054

R=iant
CC=golang-dev
https://golang.org/cl/206052

stab in the dark but plausible: the kernel does try to
return time zone information.
http://fxr.watson.org/fxr/source/kern/kern_time.c?v=FREEBSD8#L421

R=iant
CC=golang-dev
https://golang.org/cl/206053

avoid possibility of busy loop pounding on dashboard.

R=agl1
CC=golang-dev
https://golang.org/cl/206051

Add functions, tests and benchmarks. Fix typos in comments
in expm1 and hypot_386.  Fix Acosh domain error in benchmark
test.

R=rsc
CC=golang-dev
https://golang.org/cl/204069

R=rsc
CC=golang-dev
https://golang.org/cl/204067

R=agl1
CC=golang-dev
https://golang.org/cl/207043

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/206044

R=agl1
CC=golang-dev
https://golang.org/cl/206047

	finalize chan, to free OS X semaphore inside Lock.
os: finalize File, to close fd.

Fixes #503.

R=ken2
CC=golang-dev
https://golang.org/cl/204065

R=ken2
CC=golang-dev
https://golang.org/cl/206043

gccgo gets this wrong at the moment.

R=rsc
CC=golang-dev
https://golang.org/cl/205044

add simple garbage collection benchmark.

R=iant
CC=golang-dev
https://golang.org/cl/204053

*l/*c -V will segfault on macos without this trivial fix.

R=adg
CC=golang-dev
https://golang.org/cl/205042

R=rsc
CC=golang-dev
https://golang.org/cl/204044

R=iant, rsc
CC=golang-dev
https://golang.org/cl/204068

R=rsc
CC=golang-dev
https://golang.org/cl/203043

R=ken2
CC=golang-dev
https://golang.org/cl/204061

R=rsc
CC=golang-dev
https://golang.org/cl/203053

Averaged times (in microseconds) for drawing an 800x600 rectangle
are listed below. The summary is: around a 100x improvement.

draw.Draw call times were typically linear in the number of pixels
touched (i.e. drawing an 800x600 rectangle took 100x as much time as
drawing an 80x60 rectangle).

Before this change, there was only the general-but-slow code path.
When drawing any src with a 50%-opaque mask: 237300 us
When drawing any src with a nil mask: 50100 us

After this change, the 50%-opaque mask case is unchanged.
For an *image.RGBA dst and nil mask and...
...a uniform color (i.e. an image.ColorImage) src: 282 us
...another *image.RGBA src: 615 us.

For the curious, an intermediate implementation detected the special
cases but used simple nested for loops instead of the built-in copy
function. The respective times (compared to 282 and 615 for the
final implementation, or 50100 for the original) were 3110 and 3573.

Times were measured with 8g/8l on my laptop. I haven't tried gccgo
or other architectures.

R=r, rsc
CC=golang-dev
https://golang.org/cl/201048

bug251.go:11:2: error: invalid recursive interface

R=rsc
CC=golang-dev
https://golang.org/cl/204052

ddd1.go:16:10: error: argument 1 has incompatible type
ddd1.go:17:10: error: argument 1 has incompatible type
ddd1.go:15:10: error: floating point constant truncated to integer

R=rsc
CC=golang-dev
https://golang.org/cl/204048

R=rsc
CC=golang-dev
https://golang.org/cl/203050

R=rsc
CC=golang-dev
https://golang.org/cl/204042