perf(allocator): Allocator::from_raw_parts get offset of chunk footer field as const#12080
Merged
graphite-app[bot] merged 1 commit intomainfrom Jul 4, 2025
Conversation
github-actions
bot
added
the
C-performance
Member
Author
How to use the Graphite Merge QueueAdd either label to this PR to merge it via the merge queue:
You must have a Graphite account in order to use the merge queue. Sign up using this link. An organization admin has enabled the Graphite Merge Queue in this repository. Please do not merge from GitHub as this will restart CI on PRs being processed by the merge queue. This stack of pull requests is managed by Graphite. Learn more about stacking. |
![graphite-app[bot]](https://avatars.githubusercontent.com/in/158384?s=60&v=4){kind=small}
CodSpeed Instrumentation Performance ReportMerging #12080 will not alter performanceComparing Summary
|
overlookmotel
force-pushed
the
07-04-perf_allocator_allocator_from_raw_parts_get_offset_of_chunk_footer_field_as_const
branch
from
d78fe44 to
404c2ec
Compare
Member
Author
|
I don't think anyone else is really across this jiggery-pokery, so merging without review. |
Member
Author
Merge activity
|
…er field as const (#12080) `Allocator::from_raw_parts` manually amends `bumpalo::Bump` to inject a manually-created allocator chunk. To do this it needs to locate the `current_chunk_footer` field of `Bump`. Remove some unnecessary assertions, which allows compiler to const fold the whole process down to a static integer.
graphite-app
bot
force-pushed
the
07-04-perf_allocator_allocator_from_raw_parts_get_offset_of_chunk_footer_field_as_const
branch
from
404c2ec to
d732e85
Compare
graphite-app
bot
deleted the
07-04-perf_allocator_allocator_from_raw_parts_get_offset_of_chunk_footer_field_as_const
branch
This file contains hidden or 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
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
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.
Allocator::from_raw_partsmanually amendsbumpalo::Bumpto inject a manually-created allocator chunk. To do this it needs to locate thecurrent_chunk_footerfield ofBump. Remove some unnecessary assertions, which allows compiler to const fold the whole process down to a static integer.