Rollup of 7 pull requests #99422
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Rollup of 7 pull requests #99422
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We can apply nocf_check as a hack for now.
Same idea but for AArch64.
Signed-off-by: Yuki Okushi <[email protected]>
… r=thomcc Add assertion that `transmute_copy`'s U is not larger than T This is called out as a safety requirement in the docs, but because knowing this can be done at compile time and constant folded (just like the `align_of` branch is removed), we can just panic here. I've looked at the asm (using `cargo-asm`) of a function that both is correct and incorrect, and the panic is completely removed, or is unconditional, without needing build-std. I don't expect this to cause much breakage in the wild. I scanned through https://miri.saethlin.dev/ub for issues that would look like this (error: Undefined Behavior: memory access failed: alloc1768 has size 1, so pointer to 8 bytes starting at offset 0 is out-of-bounds), but couldn't find any. That doesn't rule out it happening in crates tested that fail earlier for some other reason, though, but it indicates that doing this is rare, if it happens at all. A crater run for this would need to be build and test, since this is a runtime thing. Also added a few more transmute_copy tests.
…es-enforcement-technology, r=Amanieu Remove branch target prologues from `#[naked] fn` This patch hacks around rust-lang#98768 for now via injecting appropriate attributes into the LLVMIR we emit for naked functions. I intend to pursue this upstream so that these attributes can be removed in general, but it's slow going wading through C++ for me.
add missing null ptr check in alloc example `alloc` can return null on OOM, if I understood correctly. So we should never just deref a pointer we get from `alloc`.
…rules-w-same-name, r=GuillaumeGomez rustdoc: avoid inlining items with duplicate `(type, name)` Fixes rust-lang#99221
… r=davidtwco Use `typeck_results` to get accurate qpath res for arg mismatch error Improves error message from "function" to actually what we're calling (e.g. enum variant constrcutor) in a few cases 😸
interpret/visitor: add missing early return I forgot to add this when adding the special `Box` handling branch. r? ```@oli-obk```
…rrors Add regression test for rust-lang#95230 Closes rust-lang#95230 r? ```@compiler-errors``` Signed-off-by: Yuki Okushi <[email protected]>
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@bors r+ rollup=never p=5 |
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☀️ Test successful - checks-actions |
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Finished benchmarking commit (f858854): comparison url. Instruction countThis benchmark run did not return any relevant results for this metric. Max RSS (memory usage)Results
CyclesResults
If you disagree with this performance assessment, please file an issue in rust-lang/rustc-perf. @rustbot label: -perf-regression Footnotes |
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Successful merges:
transmute_copy's U is not larger than T #98839 (Add assertion thattransmute_copy's U is not larger than T)#[naked] fn#98998 (Remove branch target prologues from#[naked] fn)(type, name)#99344 (rustdoc: avoid inlining items with duplicate(type, name))typeck_resultsto get accurate qpath res for arg mismatch error #99351 (Usetypeck_resultsto get accurate qpath res for arg mismatch error)Failed merges:
r? @ghost
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