0234dfd493
Previous CLs changed the representation of the non-heap type bitmaps to be 1-bit bitmaps (pointer or not). Before this CL, the heap bitmap stored a 2-bit type for each word and a mark bit and checkmark bit for the first word of the object. (There used to be additional per-word bits.) Reduce heap bitmap to 2-bit, with 1 dedicated to pointer or not, and the other used for mark, checkmark, and "keep scanning forward to find pointers in this object." See comments for details. This CL replaces heapBitsSetType with very slow but obviously correct code. A followup CL will optimize it. (Spoiler: the new code is faster than Go 1.4 was.) Change-Id: I999577a133f3cfecacebdec9cdc3573c235c7fb9 Reviewed-on: https://go-review.googlesource.com/9703 Reviewed-by: Rick Hudson <rlh@golang.org> Reviewed-by: Austin Clements <austin@google.com> |
||
---|---|---|
api | ||
doc | ||
lib/time | ||
misc | ||
src | ||
test | ||
.gitattributes | ||
.gitignore | ||
AUTHORS | ||
CONTRIBUTING.md | ||
CONTRIBUTORS | ||
favicon.ico | ||
LICENSE | ||
PATENTS | ||
README.md | ||
robots.txt |
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.
Please report issues here: https://golang.org/issue/new
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
Please note that we do not use pull requests.
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.