mirror of https://github.com/golang/go.git
a768de8347
MOVSD only copies the low half of the packed register pair,
while MOVAPD copies both halves. I assume the internal
register renaming works better with the latter, since it makes
our code run 25% faster.
Before:
mandelbrot 16000
gcc -O2 mandelbrot.c 28.44u 0.00s 28.45r
gc mandelbrot 44.12u 0.00s 44.13r
gc_B mandelbrot 44.17u 0.01s 44.19r
After:
mandelbrot 16000
gcc -O2 mandelbrot.c 28.22u 0.00s 28.23r
gc mandelbrot 32.81u 0.00s 32.82r
gc_B mandelbrot 32.82u 0.00s 32.83r
R=ken2
CC=golang-dev
https://golang.org/cl/6248068
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| api | ||
| doc | ||
| include | ||
| lib | ||
| misc | ||
| src | ||
| test | ||
| .hgignore | ||
| .hgtags | ||
| AUTHORS | ||
| CONTRIBUTORS | ||
| LICENSE | ||
| PATENTS | ||
| README | ||
| favicon.ico | ||
| robots.txt | ||
README
This is the source code repository for the Go programming language.
For documentation about how to install and use Go,
visit http://golang.org/ or load doc/install.html in your web browser.
After installing Go, you can view a nicely formatted
doc/install.html by running godoc --http=:6060
and then visiting http://localhost:6060/doc/install.html.
Unless otherwise noted, the Go source files are distributed
under the BSD-style license found in the LICENSE file.
--
Binary Distribution Notes
If you have just untarred a binary Go distribution, you need to set
the environment variable $GOROOT to the full path of the go
directory (the one containing this README). You can omit the
variable if you unpack it into /usr/local/go, or if you rebuild
from sources by running all.bash (see doc/install.html).
You should also add the Go binary directory $GOROOT/bin
to your shell's path.
For example, if you extracted the tar file into $HOME/go, you might
put the following in your .profile:
export GOROOT=$HOME/go
export PATH=$PATH:$GOROOT/bin
See doc/install.html for more details.