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This is a follow-up to #145585 where I forgot to deal with the case of the return place aliasing an in-place argument -- as @Amanieu mentioned in #71117 (comment), that case must also be forbidden.

r? @compiler-errors

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rustbot commented Aug 22, 2025

compiler-errors is not on the review rotation at the moment.
They may take a while to respond.

@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. labels Aug 22, 2025
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rustbot commented Aug 22, 2025

Some changes occurred to the CTFE machinery

cc @RalfJung, @oli-obk, @lcnr

Some changes occurred to the CTFE / Miri interpreter

cc @rust-lang/miri

The Miri subtree was changed

cc @rust-lang/miri

@RalfJung RalfJung force-pushed the miri-inplace-aliasing branch from d1faa42 to 381347d Compare August 22, 2025 07:26
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@RalfJung RalfJung force-pushed the miri-inplace-aliasing branch from 381347d to 78bdd86 Compare August 22, 2025 08:21
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rustbot commented Aug 22, 2025

This PR was rebased onto a different master 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.

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@bors r+ rollup

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bors commented Aug 23, 2025

📌 Commit 78bdd86 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 Aug 23, 2025
samueltardieu added a commit to samueltardieu/rust that referenced this pull request Aug 23, 2025
…compiler-errors

miri: also detect aliasing of in-place argument and return place

This is a follow-up to rust-lang#145585 where I forgot to deal with the case of the return place aliasing an in-place argument -- as `@Amanieu` mentioned in rust-lang#71117 (comment), that case must also be forbidden.

r? `@compiler-errors`
bors added a commit that referenced this pull request Aug 23, 2025
Rollup of 14 pull requests

Successful merges:

 - #143898 (opt-dist: rebuild rustc when doing static LLVM builds)
 - #144452 (std/sys/fd: Relax `READ_LIMIT` on Darwin)
 - #145234 (match exhaustiveness diagnostics: show a trailing comma on singleton tuple consructors in witness patterns (and clean up a little))
 - #145515 (Optimize `char::encode_utf8`)
 - #145540 (interpret/allocation: get_range on ProvenanceMap)
 - #145670 (port `sanitize` attribute to the new parsing infrastructure)
 - #145713 (next-solver: fix `feature(const_trait_impl)` bootstrap)
 - #145729 (Remove two duplicated crates)
 - #145744 (miri: also detect aliasing of in-place argument and return place)
 - #145774 (Remove default opts from config)
 - #145781 (Remove profile section from Clippy)
 - #145782 (rustdoc: make attributes render consistently)
 - #145787 (citool: cleanup `mismatched_lifetime_syntaxes` warnings)
 - #145791 (Fix ICE when validating transmuting ZST to inhabited enum)

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit 0b8d7b1 into rust-lang:master Aug 24, 2025
10 checks passed
@rustbot rustbot added this to the 1.91.0 milestone Aug 24, 2025
rust-timer added a commit that referenced this pull request Aug 24, 2025
Rollup merge of #145744 - RalfJung:miri-inplace-aliasing, r=compiler-errors

miri: also detect aliasing of in-place argument and return place

This is a follow-up to #145585 where I forgot to deal with the case of the return place aliasing an in-place argument -- as ``@Amanieu`` mentioned in #71117 (comment), that case must also be forbidden.

r? ``@compiler-errors``
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jhpratt commented Aug 24, 2025

still in queue

@bors r-

@bors bors added S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. and removed S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. labels Aug 24, 2025
github-actions bot pushed a commit to rust-lang/miri that referenced this pull request Aug 24, 2025
Rollup of 14 pull requests

Successful merges:

 - rust-lang/rust#143898 (opt-dist: rebuild rustc when doing static LLVM builds)
 - rust-lang/rust#144452 (std/sys/fd: Relax `READ_LIMIT` on Darwin)
 - rust-lang/rust#145234 (match exhaustiveness diagnostics: show a trailing comma on singleton tuple consructors in witness patterns (and clean up a little))
 - rust-lang/rust#145515 (Optimize `char::encode_utf8`)
 - rust-lang/rust#145540 (interpret/allocation: get_range on ProvenanceMap)
 - rust-lang/rust#145670 (port `sanitize` attribute to the new parsing infrastructure)
 - rust-lang/rust#145713 (next-solver: fix `feature(const_trait_impl)` bootstrap)
 - rust-lang/rust#145729 (Remove two duplicated crates)
 - rust-lang/rust#145744 (miri: also detect aliasing of in-place argument and return place)
 - rust-lang/rust#145774 (Remove default opts from config)
 - rust-lang/rust#145781 (Remove profile section from Clippy)
 - rust-lang/rust#145782 (rustdoc: make attributes render consistently)
 - rust-lang/rust#145787 (citool: cleanup `mismatched_lifetime_syntaxes` warnings)
 - rust-lang/rust#145791 (Fix ICE when validating transmuting ZST to inhabited enum)

r? `@ghost`
`@rustbot` modify labels: rollup
@RalfJung RalfJung deleted the miri-inplace-aliasing branch August 26, 2025 15:36
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6 participants