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Don't ICE when computing ctype's repr_nullable_ptr for possibly-unsized ty #115631

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merged 1 commit into from
Sep 11, 2023

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We may not always be able to compute the layout of a type like &T when T: ?Sized, even if we're able to estimate its size skeleton.

r? davidtwco

Fixes #115628

@compiler-errors compiler-errors changed the title Don't ICE when computing ctype's repr_nullable_ptr for possibly-unsized ty Don't ICE when computing ctype's repr_nullable_ptr for possibly-unsized ty Sep 7, 2023
@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 Sep 7, 2023
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@bors r+

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bors commented Sep 11, 2023

📌 Commit 086cf34 has been approved by davidtwco

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 Sep 11, 2023
bors added a commit to rust-lang-ci/rust that referenced this pull request Sep 11, 2023
…iaskrgr

Rollup of 8 pull requests

Successful merges:

 - rust-lang#115548 (Extract parallel operations in `rustc_data_structures::sync` into a new `parallel` submodule)
 - rust-lang#115591 (Add regression test for LLVM 17-rc3 miscompile)
 - rust-lang#115631 (Don't ICE when computing ctype's `repr_nullable_ptr` for possibly-unsized ty)
 - rust-lang#115708 (fix homogeneous_aggregate not ignoring some ZST)
 - rust-lang#115730 (Some more small driver refactors)
 - rust-lang#115749 (Allow loading the SMIR for constants and statics)
 - rust-lang#115757 (Add a test for rust-lang#108030)
 - rust-lang#115761 (Update books)

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit 5a2b589 into rust-lang:master Sep 11, 2023
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@rustbot rustbot added this to the 1.74.0 milestone Sep 11, 2023
rust-timer added a commit to rust-lang-ci/rust that referenced this pull request Sep 11, 2023
Rollup merge of rust-lang#115631 - compiler-errors:ctypes-unsized, r=davidtwco

Don't ICE when computing ctype's `repr_nullable_ptr` for possibly-unsized ty

We may not always be able to compute the layout of a type like `&T` when `T: ?Sized`, even if we're able to estimate its size skeleton.

r? davidtwco

Fixes rust-lang#115628
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Successfully merging this pull request may close these issues.

ice: called Result::unwrap() on an Err value: Unknown(<SeStr<S, E> as std::ptr::Pointee>::Metadata)
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