846bc6c5ab
This is: (1) a simple trick that cuts the number of phi-nodes (temporarily) inserted into the ssa representation by a factor of 10, and can cut the user time to compile tricky inputs like gogo/protobuf tests from 13 user minutes to 9.5, and memory allocation from 3.4GB to 2.4GB. (2) a fix to sparse lookup, that does not rely on an assumption proven false by at least one pathological input "etldlen". These two changes fix unrelated compiler performance bugs, both necessary to obtain good performance compiling etldlen. Without them it takes 20 minutes or longer, with them it completes in 2 minutes, without a gigantic memory footprint. Updates #16407 Change-Id: Iaa8aaa8c706858b3d49de1c4865a7fd79e6f4ff7 Reviewed-on: https://go-review.googlesource.com/23136 Reviewed-by: Keith Randall <khr@golang.org> Run-TryBot: David Chase <drchase@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> |
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README.md
The Go Programming Language
Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.
For documentation about how to install and use Go, visit https://golang.org/ or load doc/install-source.html in your web browser.
Our canonical Git repository is located at https://go.googlesource.com/go. There is a mirror of the repository at https://github.com/golang/go.
Go is the work of hundreds of contributors. We appreciate your help!
To contribute, please read the contribution guidelines: https://golang.org/doc/contribute.html
Note that we do not accept pull requests and that we use the issue tracker for bug reports and proposals only. Please ask questions on https://forum.golangbridge.org or https://groups.google.com/forum/#!forum/golang-nuts.
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 file). 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-source.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 https://golang.org/doc/install or doc/install.html for more details.