Fix: On wasm targets, call panic_in_cleanup if panic occurs in cleanup#155249
Open
hoodmane wants to merge 1 commit intorust-lang:mainfrom
Open
Fix: On wasm targets, call panic_in_cleanup if panic occurs in cleanup#155249hoodmane wants to merge 1 commit intorust-lang:mainfrom
panic_in_cleanup if panic occurs in cleanup#155249hoodmane wants to merge 1 commit intorust-lang:mainfrom
Conversation
Collaborator
|
Some changes occurred in compiler/rustc_codegen_gcc |
rustbot
added
A-LLVM
Collaborator
|
r? @JohnTitor rustbot has assigned @JohnTitor. Use Why was this reviewer chosen?The reviewer was selected based on:
|
This comment has been minimized.
This comment has been minimized.
Contributor
Author
|
r? @bjorn3 |
Member
|
@rustbot blocked LLVM backport and rustc LLVM update need to land first. |
rustbot
added
S-blocked
rust-bors Bot
pushed a commit
that referenced
this pull request
Apr 23, 2026
Update LLVM to 22.1.4 Unlocks #155249. I made a new branch that removes CI checks for macOS and reverts rust-lang/llvm-project@24b53fb.
rust-bors Bot
pushed a commit
that referenced
this pull request
Apr 24, 2026
Update LLVM to 22.1.4 Unlocks #155249. I made a new branch that removes CI checks for macOS and reverts rust-lang/llvm-project@24b53fb.
This comment has been minimized.
This comment has been minimized.
renovate-bot
pushed a commit
to renovate-bot/rust-lang-_-compiler-builtins
that referenced
this pull request
Apr 26, 2026
Update LLVM to 22.1.4 Unlocks rust-lang/rust#155249. I made a new branch that removes CI checks for macOS and reverts rust-lang/llvm-project@24b53fb.
github-actions Bot
pushed a commit
to rust-lang/rustc-dev-guide
that referenced
this pull request
Apr 27, 2026
Update LLVM to 22.1.4 Unlocks rust-lang/rust#155249. I made a new branch that removes CI checks for macOS and reverts rust-lang/llvm-project@24b53fb.
This comment has been minimized.
This comment has been minimized.
Member
|
@bors author The backport has happened. |
Contributor
|
Unknown command "author". Run |
Member
|
@rustbot author |
rustbot
removed
the
S-blocked
Collaborator
|
Reminder, once the PR becomes ready for a review, use |
rustbot
added
the
S-waiting-on-author
Previously this was not correctly implemented. Each funclet may need its own terminate block, so this changes the `terminate_block` into a `terminate_blocks` `IndexVec` which can have a terminate_block for each funclet. We key on the first basic block of the funclet -- in particular, this is the start block for the old case of the top level terminate function. Rather than using a catchswitch/catchpad pair, I used a cleanuppad. The reason for the pair is to avoid catching foreign exceptions on MSVC. On wasm, it seems that the catchswitch/catchpad pair is optimized back into a single cleanuppad and a catch_all instruction is emitted which will catch foreign exceptions. Because the new logic is only used on wasm, it seemed better to take the simpler approach seeing as they do the same thing.
hoodmane
force-pushed
the
wasm-panic-in-cleanup-reland
branch
from
9664e4c to
b072d24
Compare
Collaborator
|
This PR was rebased onto a different main commit. Here's a range-diff highlighting what actually changed. Rebasing is a normal part of keeping PRs up to date, so no action is needed—this note is just to help reviewers. |
Contributor
Author
|
@rustbot ready |
rustbot
added
S-waiting-on-review
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
5 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.
Relies on rust-lang/llvm-project#194.
Reland of #151771.
Previously this was not correctly implemented. Each funclet may need its own terminate block, so this changes the
terminate_blockinto aterminate_blocksIndexVecwhich can have a terminate_block for each funclet. We key on the first basic block of the funclet -- in particular, this is the start block for the old case of the top level terminate function.Rather than using a catchswitch/catchpad pair, I used a cleanuppad. The reason for the pair is to avoid catching foreign exceptions on MSVC. On wasm, it seems that the catchswitch/catchpad pair is optimized back into a single cleanuppad and a catch_all instruction is emitted which will catch foreign exceptions. Because the new logic is only used on wasm, it seemed better to take the simpler approach seeing as they do the same thing.