datastructures: replace once_cell crate with an impl from std
#76075
Conversation
rust-highfive
added
the
S-waiting-on-review
src/librustc_interface/lib.rs
Outdated
| @@ -4,6 +4,7 @@ | |||
| #![feature(nll)] | |||
| #![feature(generator_trait)] | |||
| #![feature(generators)] | |||
| #![feature(once_cell)] | |||
There was a problem hiding this comment.
I would've expected import changes as well - is this coming from a macro or something like that? If so that should get a allow_internal_unstable annotation instead, probably
There was a problem hiding this comment.
I am not exactly sure what you are referring to, but in src/librustc_interface/passes.rs and src/librustc_interface/queries.rs the code imports OnceCell re-exported from librustc_datastructures.
Side note: there is also an explicit import (and thus a dependency on the crate) of once_cell::sync::OnceCell in src/librustc_interface/util.rs though and I don't know if that should be updated to use the impl from std.
jyn514
added
the
T-compiler
marmeladema
force-pushed
the
remove-once-cell-crate
branch
from
b8e4b77 to
2ced222
Compare
|
@bors try @rust-timer queue |
|
Awaiting bors try build completion |
|
⌛ Trying commit 2ced2226acb1f6fd027e87e5918e81db8320505b with merge e1c8714b3f420be20f3c670b7ad84eccbe252b26... |
|
☀️ Try build successful - checks-actions, checks-azure |
|
Queued e1c8714b3f420be20f3c670b7ad84eccbe252b26 with parent 5c27700, future comparison URL. |
|
Finished benchmarking try commit (e1c8714b3f420be20f3c670b7ad84eccbe252b26): comparison url. Benchmarking this pull request likely means that it is perf-sensitive, so we're automatically marking it as not fit for rolling up. Please note that if the perf results are neutral, you should likely undo the rollup=never given below by specifying Importantly, though, if the results of this run are non-neutral do not roll this PR up -- it will mask other regressions or improvements in the roll up. @bors rollup=never |
|
Nice, basically no change in instructions but significantly less max-rss :) |
|
@jyn514 think that it is to little data to say anything about the max-rss due to how big the variance is if you look at perf graphs you will see that eg. keccak-debug have varied between -10% to +20%. |
|
Yeah, I would be very surprised if the perf turned out to be non-neutral on this one ! @bors r+ rollup Let’s change direct usages of once_cell and lazy_static crates to std::lazy in a separate PR. I am not sure about the policy of using librustc_datastructures re-export vs direct use, but it should always be safe to not change this particular aspect. |
|
📌 Commit 2ced2226acb1f6fd027e87e5918e81db8320505b has been approved by |
bors
added
S-waiting-on-bors
|
☔ The latest upstream changes (presumably #74862) made this pull request unmergeable. Please resolve the merge conflicts. |
bors
added
S-waiting-on-author
marmeladema
force-pushed
the
remove-once-cell-crate
branch
from
2ced222 to
68500ff
Compare
|
@bors r=matklad |
|
@marmeladema: 🔑 Insufficient privileges: Not in reviewers |
|
@matklad I need another approval from your part I believe 👍 |
|
@bors delegate+ |
|
✌️ @marmeladema can now approve this pull request |
|
@bors r=matklad |
|
📌 Commit 68500ff has been approved by |
bors
added
S-waiting-on-bors
Rollup of 5 pull requests Successful merges: - rust-lang#75938 (Added some `min_const_generics` revisions into `const_generics` tests) - rust-lang#76050 (Remove unused function) - rust-lang#76075 (datastructures: replace `once_cell` crate with an impl from std) - rust-lang#76115 (Restore public visibility on some parsing functions for rustfmt) - rust-lang#76127 (rustbuild: Remove one LLD workaround) Failed merges: r? @ghost
Fixes #75700
r? @matklad
We might need a perf run for this change.