Rollup of 3 pull requests#155270
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rust-bors[bot] merged 7 commits intorust-lang:mainfrom Apr 14, 2026
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…uct-like enum variants This closer follows the terminology used in the Rust Book and Reference. [Rust Book](https://doc.rust-lang.org/stable/book/ch06-01-defining-an-enum.html#listing-6-2): > named fields, like a struct [Reference](https://doc.rust-lang.org/stable/reference/items/enumerations.html#r-items.enum.constructor): > struct-like enum variant
and provide it to LLVM for better optimization
…_docs, r=ChrisDenton Use the term struct-like variant instead of anonymous structs for data of struct-like enum variants The current term in the docs `anonymous structs` seems to be outdated. I'd suggest `struct-like data` or rephrasing the whole sentence to use `struct-like variant`. The terminology used in the [Rust Book on enums](https://doc.rust-lang.org/stable/book/ch06-01-defining-an-enum.html#listing-6-2) is > named fields, like a struct The [Reference on enums](https://doc.rust-lang.org/stable/reference/items/enumerations.html#r-items.enum.constructor) uses > struct-like enum variant The term `anonymous struct` on the other hand is neither mentioned in the Rust book on [structs](https://doc.rust-lang.org/stable/book/ch05-01-defining-structs.html) or [enums](https://doc.rust-lang.org/stable/book/ch06-01-defining-an-enum.html#listing-6-2), nor the references on [structs](https://doc.rust-lang.org/stable/reference/items/structs.html) or [enums](https://doc.rust-lang.org/stable/reference/items/enumerations.html#r-items.enum.constructor).
… r=nnethercote preserve SIMD element type information Preserve the SIMD element type and provide it to LLVM for better optimization. This is relevant for AArch64 types like `int16x4x2_t`, see also llvm/llvm-project#181514. Such types are defined like so: ```rust #[repr(simd)] struct int16x4_t([i16; 4]); #[repr(C)] struct int16x4x2_t(pub int16x4_t, pub int16x4_t); ``` Previously this would be translated to the opaque `[2 x <8 x i8>]`, with this PR it is instead `[2 x <4 x i16>]`. That change is not relevant for the ABI, but using the correct type prevents bitcasts that can (indeed, do) confuse the LLVM pattern matcher. This change will make it possible to implement the deinterleaving loads on AArch64 in a portable way (without neon-specific intrinsics), which means that e.g. Miri or the cranelift backend can run them without additional support. discussion at [#t-compiler > loss of vector element type information](https://rust-lang.zulipchat.com/#narrow/channel/131828-t-compiler/topic/loss.20of.20vector.20element.20type.20information/with/584483611)
…g, r=Kivooeo Avoid linting `doc_cfg` as unused in rustc Fixes rust-lang#154487 https://github.com/rust-lang/rust/blob/af80b0f2cd0505bcc86eaa675d1ab403110d373a/src/librustdoc/passes/propagate_doc_cfg.rs#L19-L26
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@bors r+ rollup=never p=5 |
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📌 Perf builds for each rolled up PR:
previous master: 0006519783 In the case of a perf regression, run the following command for each PR you suspect might be the cause: |
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What is this?This is an experimental post-merge analysis report that shows differences in test outcomes between the merged PR and its parent PR.Comparing 0006519 (parent) -> 7db0ab4 (this PR) Test differencesShow 7 test diffsStage 1
Stage 2
Job group index
Test dashboardRun cargo run --manifest-path src/ci/citool/Cargo.toml -- \
test-dashboard 7db0ab43a7f248268e6460b96a955e3d420b485d --output-dir test-dashboardAnd then open Job duration changes
How to interpret the job duration changes?Job durations can vary a lot, based on the actual runner instance |
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Finished benchmarking commit (7db0ab4): comparison URL. Overall result: no relevant changes - no action needed@rustbot label: -perf-regression Instruction countThis perf run didn't have relevant results for this metric. Max RSS (memory usage)This perf run didn't have relevant results for this metric. CyclesResults (secondary 5.9%)A less reliable metric. May be of interest, but not used to determine the overall result above.
Binary sizeThis perf run didn't have relevant results for this metric. Bootstrap: 491.89s -> 489.054s (-0.58%) |
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Successful merges:
doc_cfgas unused in rustc #155230 (Avoid lintingdoc_cfgas unused in rustc)r? @ghost
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