Help optimize out backtraces when disabled #92992
Merged
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
|
r? @kennytm (rust-highfive has picked a reviewer for you, use r? to override) |
rust-highfive
added
the
S-waiting-on-review
|
@bors r+ rollup |
|
📌 Commit c280752 has been approved by |
bors
added
S-waiting-on-bors
bors
added a commit
to rust-lang-ci/rust
that referenced
this pull request
Jan 20, 2022
…askrgr Rollup of 13 pull requests Successful merges: - rust-lang#89747 (Add MaybeUninit::(slice_)as_bytes(_mut)) - rust-lang#89764 (Fix variant index / discriminant confusion in uninhabited enum branching) - rust-lang#91606 (Stabilize `-Z print-link-args` as `--print link-args`) - rust-lang#91694 (rustdoc: decouple stability and const-stability) - rust-lang#92183 (Point at correct argument when async fn output type lifetime disagrees with signature) - rust-lang#92582 (improve `_` constants in item signature handling) - rust-lang#92680 (intra-doc: Use the impl's assoc item where possible) - rust-lang#92704 (Change lint message to be stronger for &T -> &mut T transmute) - rust-lang#92861 (Rustdoc mobile: put out-of-band info on its own line) - rust-lang#92992 (Help optimize out backtraces when disabled) - rust-lang#93038 (Fix star handling in block doc comments) - rust-lang#93108 (:arrow_up: rust-analyzer) - rust-lang#93112 (Fix CVE-2022-21658) Failed merges: r? `@ghost` `@rustbot` modify labels: rollup
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Outdated suggestions cannot be applied.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.
The comment in
rust_backtrace_envsays:but this optimization has regressed, because the only caller of this function had an alternative path that unconditionally (and pointlessly) asked for a full backtrace, so the disabled state couldn't propagate.
I've added a getter for the full format that respects the feature flag, so that the caller will now be able to really optimize out the disabled backtrace path. I've also made
rust_backtrace_envtrivially inlineable when backtraces are disabled.