for expr1, expr2 = range slice
was assigning to expr1 and expr2 in sequence
instead of in parallel. Now it assigns in parallel,
as it should. This matters for things like
for i, x[i] = range slice.
Fixes#3464.
R=ken2
CC=golang-dev
https://golang.org/cl/6252048
This is from CL 5451105 but was dropped from that CL.
See also CL 6137051.
The only change compared to 5451105 is to check for
h != nil in reflect·mapiterinit; allowing use of nil maps
must have happened after that original CL.
Fixes#3573.
R=golang-dev, dave, r
CC=golang-dev
https://golang.org/cl/6215078
Remove redundant checks for integration points.
Ignore null bytes in text.
Don't break out of foreign content for a <font> tag unless it
has a color, face, or size attribute.
Check for MathML text integration points when breaking out of
foreign content.
Pass two new tests.
R=nigeltao
CC=golang-dev
https://golang.org/cl/6256045
The bulk of the gains come from hoisting the modulo ops outside of
the inner loop.
Reducing the digest type from 8 bytes to 4 bytes gains another 1% on
the hash/adler32 micro-benchmark.
Benchmarks for $GOOS,$GOARCH = linux,amd64 below.
hash/adler32 benchmark:
benchmark old ns/op new ns/op delta
BenchmarkAdler32KB 1660 1364 -17.83%
image/png benchmark:
benchmark old ns/op new ns/op delta
BenchmarkDecodeGray 2466909 2425539 -1.68%
BenchmarkDecodeNRGBAGradient 9884500 9751705 -1.34%
BenchmarkDecodeNRGBAOpaque 8511615 8379800 -1.55%
BenchmarkDecodePaletted 1366683 1330677 -2.63%
BenchmarkDecodeRGB 6987496 6884974 -1.47%
BenchmarkEncodePaletted 6292408 6040052 -4.01%
BenchmarkEncodeRGBOpaque 19780680 19178440 -3.04%
BenchmarkEncodeRGBA 80738600 79076800 -2.06%
Wall time for Denis Cheremisov's PNG-decoding program given in
https://groups.google.com/group/golang-nuts/browse_thread/thread/22aa8a05040fdd49
Before: 2.44s
After: 2.26s
Delta: -7%
R=rsc
CC=golang-dev
https://golang.org/cl/6251044
When client fails to write a request is sends caller that error,
however server might have failed to read that request in the mean
time and replied with that error. When client then reads the
response the call would no longer be pending, so call will be nil
Handle this gracefully by discarding such server responses
R=golang-dev, r
CC=golang-dev, rsc
https://golang.org/cl/5956051
* Eliminate bounds check on known small shifts.
* Rewrite x<<s | x>>(32-s) as a rotate (constant s).
* More aggressive (but still minimal) range analysis.
R=ken, dave, iant
CC=golang-dev
https://golang.org/cl/6209077
The previous attempt to explain this got it backwards (all the more reason to be
sad we couldn't make the two functions behave the same).
Fixes#3669.
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6249051
There's no need for the 16-bit arithmetic here,
and it tickles a long-standing compiler bug.
Fix the exp code not to use 16-bit math and
create an explicit test for the compiler bug.
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6256048
- interface methods appeared under VarDecl in search results
(long-standing TODO)
- don't walk parts of AST which contain no indexable material
(minor performance tuning)
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6228047
The documentation says so, but in the case of a normalized
integral Rat, the denominator was a new value. Changed the
internal representation to use an Int to represent the
denominator (with the sign ignored), so a reference to it
can always be returned.
Clarified documentation and added test cases.
Fixes#3521.
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6237045
* Shift/rotate by constant doesn't have to stop subprop. (also in 8g)
* Remove redundant MOVLQZX instructions.
* An attempt at issuing loads early.
Good for 0.5% on a good day, might not be worth keeping.
Need to understand more about whether the x86
looks ahead to what loads might be coming up.
R=ken2, ken
CC=golang-dev
https://golang.org/cl/6203091
Detect HTML integration points and MathML text integration points.
At these points, process tokens as HTML, not as foreign content.
Pass 33 more tests.
R=nigeltao
CC=golang-dev
https://golang.org/cl/6249044
Import updated test data from the WebKit Subversion repository (SVN revision 118111).
Some of the old tests were failing because we were HTML5 compliant, but the tests weren't.
R=nigeltao
CC=golang-dev
https://golang.org/cl/6228049
I needed this to explore per-GOOS/GOARCH differences in pkg
syscall for a recent CL. Others may find it useful too.
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6236046
- there is no label scope at package level
- open/close all scopes symmetrically now
that there is only one parse entry point
(parseFile)
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6230047
CL 5823055 removed a line introduced in Linux/ARM cgo support.
Because readsym() now returns nil for "$a", "$d" mapping symbols,
no matter the settings of `needSym', we still have to guard against
them in ldelf().
R=golang-dev, dave, rsc
CC=golang-dev
https://golang.org/cl/6220073
This quiets all.bash noise for upcoming features we know about.
The all.bash warnings will now only print for things not in next.txt
(or in next.txt but not in the API).
Once an API is frozen, we rename next.txt to a new frozen file
(like go1.txt)
Fixes#3651
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6218069
Handle text, comment, and doctype tokens in afterBodyIM, afterAfterBodyIM,
and afterAfterFramesetIM.
Pass three more tests.
R=nigeltao
CC=golang-dev
https://golang.org/cl/6231043
Also: simplified some existing tests.
No support for Rats for now because the precision-preserving
default notation (fractions of the form a/b) is not a valid
JSON value.
Fixes#3657.
R=golang-dev, bradfitz, rsc
CC=golang-dev
https://golang.org/cl/6211079
Currently, if you pass some data to a template as an interface (e.g. interface{})
and extract that value that value as a parameter for a function, it fails, saying
wrong type.
This is because it is only looking at the interface type, not the interface content.
This CL uses the underlying content as the parameter to the func.
Fixes#3642.
R=golang-dev, r, r
CC=golang-dev
https://golang.org/cl/6218052
Introduce a newsym() to cmd/lib.c to add a symbol but don't add
them to hash table.
Introduce a new bit flag SHIDDEN and bit mask SMASK to handle hidden
and/or local symbols in ELF symbol tables. Though we still need to order
the symbol table entries correctly.
Fix for issue 3261 comment #9.
For CL 5822049.
R=iant, rsc
CC=golang-dev
https://golang.org/cl/5823055
ld -r could generate multiple section symbols for the same section,
but with different values, we have to take that into account.
Fixes#3322.
Part of issue 3261.
For CL 5822049.
R=golang-dev, iant, rsc, iant
CC=golang-dev
https://golang.org/cl/5823059
Now that we've fixed the Expect: test, this CL should be okay.
««« original CL description
net/http: revert 97d027b3aa68
Revert the following change set:
changeset: 13018:97d027b3aa68
user: Gustavo Niemeyer <gustavo@niemeyer.net>
date: Mon Apr 23 22:00:16 2012 -0300
summary: net/http: allow clients to disable keep-alive
This broke a test on Windows 64 and somebody else
will have to check.
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6112054
»»»
Fixes#3540.
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/6228046
In both the web and command line tool,
the comment is shown after the declaration.
But in the code the comment is obviously before.
Make the text not refer to a specific order.
R=r, dsymonds
CC=golang-dev
https://golang.org/cl/6206094
The speedup is a combination of unrolling/specializing
the actual code and also making the compiler generate better code.
Go 1.0.1 (size: 1239 code + 320 data = 1559 total)
md5.BenchmarkHash1K 1000000 7178 ns/op 142.64 MB/s
md5.BenchmarkHash8K 200000 56834 ns/op 144.14 MB/s
Partial unroll (size: 1115 code + 256 data = 1371 total)
md5.BenchmarkHash1K 5000000 2513 ns/op 407.37 MB/s
md5.BenchmarkHash8K 500000 19406 ns/op 422.13 MB/s
Complete unroll (size: 1900 code + 0 data = 1900 code)
md5.BenchmarkHash1K 5000000 2442 ns/op 419.18 MB/s
md5.BenchmarkHash8K 500000 18957 ns/op 432.13 MB/s
Comparing Go 1.0.1 and the complete unroll (this CL):
benchmark old MB/s new MB/s speedup
md5.BenchmarkHash1K 142.64 419.18 2.94x
md5.BenchmarkHash8K 144.14 432.13 3.00x
On the same machine, 'openssl speed md5' reports 441 MB/s
and 531 MB/s for our two cases, so this CL is at 90% and 80% of
those speeds, which is at least in the right ballpark.
OpenSSL is using carefully engineered assembly, so we are
unlikely to catch up completely.
Measurements on a Mid-2010 MacPro5,1.
R=golang-dev, bradfitz, agl
CC=golang-dev
https://golang.org/cl/6220046
This just eliminates some duplication.
Also add a pointer to RFC 1122, in case
this comes up again.
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/6229044
