Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Restore pred_known_to_hold_modulo_regions #123578

Merged
merged 2 commits into from Apr 8, 2024
Merged

Conversation

lqd
Copy link
Member

@lqd lqd commented Apr 6, 2024

As requested by @lcnr in #123275 (comment) this PR restores pred_known_to_hold_modulo_regions to fix that "unexpected unsized tail" beta regression.

This also adds the reduced repro from #123275 (comment) as a sub-optimal test is better than no test at all, and it'll also cover #108721. It still ICEs on master, even though https://github.com/phlip9/rustc-warp-ice doesn't on nightly anymore, since #122493.

Fixes #123275.

r? @compiler-errors but feel free to close if you'd rather have a better test instead
cc @wesleywiser who had signed up to do the revert

Will need a backport if we go with this PR: @rustbot label +beta-nominated

@rustbot rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. beta-nominated Nominated for backporting to the compiler in the beta channel. labels Apr 6, 2024
@compiler-errors
Copy link
Member

This is good enough.

@bors r+

@bors
Copy link
Contributor

bors commented Apr 8, 2024

📌 Commit 68b4257 has been approved by compiler-errors

It is now in the queue for this repository.

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Apr 8, 2024
bors added a commit to rust-lang-ci/rust that referenced this pull request Apr 8, 2024
…iaskrgr

Rollup of 9 pull requests

Successful merges:

 - rust-lang#122781 (Fix argument ABI for overaligned structs on ppc64le)
 - rust-lang#123367 (Safe Transmute: Compute transmutability from `rustc_target::abi::Layout`)
 - rust-lang#123518 (Fix `ByMove` coroutine-closure shim (for 2021 precise closure capturing behavior))
 - rust-lang#123547 (bootstrap: remove unused pub fns)
 - rust-lang#123564 (Don't emit divide-by-zero panic paths in `StepBy::len`)
 - rust-lang#123578 (Restore `pred_known_to_hold_modulo_regions`)
 - rust-lang#123591 (Remove unnecessary cast from `LLVMRustGetInstrProfIncrementIntrinsic`)
 - rust-lang#123632 (parser: reduce visibility of unnecessary public `UnmatchedDelim`)
 - rust-lang#123635 (CFI: Fix ICE in KCFI non-associated function pointers)

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit 984767e into rust-lang:master Apr 8, 2024
11 checks passed
@rustbot rustbot added this to the 1.79.0 milestone Apr 8, 2024
rust-timer added a commit to rust-lang-ci/rust that referenced this pull request Apr 8, 2024
Rollup merge of rust-lang#123578 - lqd:regression-123275, r=compiler-errors

Restore `pred_known_to_hold_modulo_regions`

As requested by `@lcnr` in rust-lang#123275 (comment) this PR restores `pred_known_to_hold_modulo_regions` to fix that "unexpected unsized tail" beta regression.

This also adds the reduced repro from rust-lang#123275 (comment) as a sub-optimal test is better than no test at all, and it'll also cover rust-lang#108721. It still ICEs on master, even though https://github.com/phlip9/rustc-warp-ice doesn't on nightly anymore, since rust-lang#122493.

Fixes rust-lang#123275.

r? `@compiler-errors` but feel free to close if you'd rather have a better test instead
cc `@wesleywiser` who had signed up to do the revert

Will need a backport if we go with this PR: `@rustbot` label +beta-nominated
@lqd lqd deleted the regression-123275 branch April 8, 2024 23:13
@apiraino
Copy link
Contributor

Beta backport approved as per compiler team on Zulip. A backport PR will be authored by the release team at the end of the current development cycle.

@rustbot label +beta-accepted

@rustbot rustbot added the beta-accepted Accepted for backporting to the compiler in the beta channel. label Apr 11, 2024
@cuviper cuviper mentioned this pull request Apr 11, 2024
@cuviper cuviper modified the milestones: 1.79.0, 1.78.0 Apr 11, 2024
@cuviper cuviper removed the beta-nominated Nominated for backporting to the compiler in the beta channel. label Apr 11, 2024
bors added a commit to rust-lang-ci/rust that referenced this pull request Apr 12, 2024
[beta] backports

- fix attribute validation on associated items in traits rust-lang#121545
- Only inspect user-written predicates for privacy concerns rust-lang#123377
- Check def id before calling `match_projection_projections` rust-lang#123471
- Restore `pred_known_to_hold_modulo_regions` rust-lang#123578
- Beta revert "Use OS thread name by default" rust-lang#123533

r? cuviper
bors added a commit to rust-lang-ci/rust that referenced this pull request Apr 12, 2024
[beta] backports

- fix attribute validation on associated items in traits rust-lang#121545
- Only inspect user-written predicates for privacy concerns rust-lang#123377
- Check def id before calling `match_projection_projections` rust-lang#123471
- Restore `pred_known_to_hold_modulo_regions` rust-lang#123578
- Beta revert "Use OS thread name by default" rust-lang#123533

r? cuviper
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
beta-accepted Accepted for backporting to the compiler in the beta channel. S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
Projects
None yet
Development

Successfully merging this pull request may close these issues.

regression: unexpected unsized tail ICE
6 participants