mirror of
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synced 2024-09-30 05:07:17 +00:00
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««« CL 108860043 / f153208c0a0e cmd/gc: fix escape analysis for &x inside switch x := v.(type) The analysis for &x was using the loop depth on x set during x's declaration. A type switch creates a list of implicit declarations that were not getting initialized with loop depths. Fixes #8176. LGTM=iant R=iant CC=golang-codereviews https://golang.org/cl/108860043 »»» ««« CL 108870044 / 331dbd4a6334 cmd/gc: fix &result escaping into result There is a hierarchy of location defined by loop depth: -1 = the heap 0 = function results 1 = local variables (and parameters) 2 = local variable declared inside a loop 3 = local variable declared inside a loop inside a loop etc In general if an address from loopdepth n is assigned to something in loop depth m < n, that indicates an extended lifetime of some form that requires a heap allocation. Function results can be local variables too, though, and so they don't actually fit into the hierarchy very well. Treat the address of a function result as level 1 so that if it is written back into a result, the address is treated as escaping. Fixes issue 8185 . LGTM=iant R=iant CC=golang-codereviews https://golang.org/cl/108870044 »»» LGTM=r R=golang-codereviews, r CC=bradfitz, golang-codereviews, iant https://golang.org/cl/107930044 |
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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-source.html
in your web browser.
After installing Go, you can view a nicely formatted
doc/install-source.html by running godoc --http=:6060
and then visiting http://localhost:6060/doc/install/source.
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.