| commit | 1546ab5a3925b07c86f05ccfa4c8b4c2b818790e | [log] [tgz] |
|---|---|---|
| author | Michael Munday <mike.munday@ibm.com> | Tue Jul 17 08:39:30 2018 +0100 |
| committer | Michael Munday <mike.munday@ibm.com> | Tue Jul 17 14:58:54 2018 +0000 |
| tree | cf72fa9d67043c73136a39a3815045397a5aedc4 | |
| parent | 5890e25b7ccb2d2249b2f8a02ef5dbc36047868b [diff] |
cmd/compile: keep autos if their address reaches a control value Autos must be kept if their address reaches the control value of a block. We didn't see this before because it is rare for an auto's address to reach a control value without also reaching a phi or being written to memory. We can probably optimize away the comparisons that lead to this scenario since autos cannot alias with pointers from elsewhere, however for now we take the conservative approach and just ensure the auto is properly initialised if its address reaches a control value. Fixes #26407. Change-Id: I02265793f010a9e001c3e1a5397c290c6769d4de Reviewed-on: https://go-review.googlesource.com/124335 Reviewed-by: David Chase <drchase@google.com>
Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.
Gopher image by Renee French, licensed under Creative Commons 3.0 Attributions license.
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.
Unless otherwise noted, the Go source files are distributed under the BSD-style license found in the LICENSE file.
Official binary distributions are available at https://golang.org/dl/.
After downloading a binary release, visit https://golang.org/doc/install or load doc/install.html in your web browser for installation instructions.
If a binary distribution is not available for your combination of operating system and architecture, visit https://golang.org/doc/install/source or load doc/install-source.html in your web browser for source installation instructions.
Go is the work of thousands of contributors. We appreciate your help!
To contribute, please read the contribution guidelines: https://golang.org/doc/contribute.html
Note that the Go project uses the issue tracker for bug reports and proposals only. See https://golang.org/wiki/Questions for a list of places to ask questions about the Go language.