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validating the vtable can lead to Stacked Borrows errors #97761

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merged 1 commit into from
Jun 11, 2022

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RalfJung
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@RalfJung RalfJung commented Jun 5, 2022

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Some changes occured to the CTFE / Miri engine

cc @rust-lang/miri

@rustbot rustbot added the T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. label Jun 5, 2022
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r? @cjgillot

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@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Jun 5, 2022
@RalfJung RalfJung force-pushed the vtable-validation branch from 5f5a3bc to 67ec969 Compare June 5, 2022 16:27
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IIUC, this fixes a miri ICE, and the worst that could happen is a weird diagnostic if the assumption is wrong.
@bors r+

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bors commented Jun 11, 2022

📌 Commit 67ec969 has been approved by cjgillot

@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 Jun 11, 2022
Dylan-DPC added a commit to Dylan-DPC/rust that referenced this pull request Jun 11, 2022
validating the vtable can lead to Stacked Borrows errors

Fixes rust-lang/miri#2123
bors added a commit to rust-lang-ci/rust that referenced this pull request Jun 11, 2022
Rollup of 5 pull requests

Successful merges:

 - rust-lang#97761 (validating the vtable can lead to Stacked Borrows errors)
 - rust-lang#97789 (Fix rust-lang#71363's test by adding `-Z translate-remapped-path-to-local-path=no`)
 - rust-lang#97913 (Wrap `HirId`s of locals into `LocalVarId`s for THIR nodes)
 - rust-lang#97979 (Fix typos in Provider API docs)
 - rust-lang#97987 (remove an unnecessary `String`)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit 11d8ae2 into rust-lang:master Jun 11, 2022
@rustbot rustbot added this to the 1.63.0 milestone Jun 11, 2022
bors added a commit to rust-lang/miri that referenced this pull request Jun 12, 2022
test for Stacked Borrows error during vtable validation

Fixes #2123
Needs rust-lang/rust#97761
bors added a commit to rust-lang/miri that referenced this pull request Jun 12, 2022
test for Stacked Borrows error during vtable validation

Fixes #2123
Needs rust-lang/rust#97761
@RalfJung RalfJung deleted the vtable-validation branch June 14, 2022 16:39
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Successfully merging this pull request may close these issues.

Stacked Borrows error can appear during validation, causing an ICE
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