Try to avoid noalias attributes on intrusive linked lists #3654
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
carllerche
approved these changes
Mar 29, 2021
Merged
yvt
added a commit
to yvt/cryo
that referenced
this pull request
Oct 25, 2021
`!Unpin` is necessary to avoid the `noalias` LLVM attribute on `&mut State`. A similar fix was done recently in Tokio [1]. [1]: tokio-rs/tokio#3654
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
This PR makes the
Pointersstruct!Unpinto guard against pointers to it being marked noalias by #82834. It also uses raw pointer manipulation to access its fields to avoid the creation of references to those fields.