a223ccae38
s390x does not require duffzero/duffcopy since it has storage-to-storage instructions that can copy/clear up to 256 bytes at a time. peep contains several new passes to optimize instruction sequences that match s390x instructions such as the compare-and-branch and load/store multiple instructions. copyprop and subprop have been extended to work with moves that require sign/zero extension. This work could be ported to other architectures that do not used sized math however it does add complexity and will probably be rendered unnecessary by ssa in the near future. Change-Id: I1b64b281b452ed82a85655a0df69cb224d2a6941 Reviewed-on: https://go-review.googlesource.com/20873 Run-TryBot: Michael Munday <munday@ca.ibm.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Bill O'Farrell <billotosyr@gmail.com> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> |
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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.