Rollup of 8 pull requests #141668
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Rollup of 8 pull requests #141668
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We cannot transform `*elem` to `array[idx1]` in the following code,
as `idx1` has already been modified.
```rust
mir! {
let array;
let elem;
{
array = [*val; 5];
elem = &array[idx1];
idx1 = idx2;
RET = *elem;
Return()
}
}
```
To include beta backport of revert <rust-lang#141024> which should undo linker warnings during bootstrapping of Windows MSVC targets due to <rust-lang#140176>.
add `asm_cfg`: `#[cfg(...)]` within `asm!` tracking issue: rust-lang#140364 blocked on: rust-lang#140490 This feature was discussed in rust-lang#140279. It allows configuring templates and operands in the assembly macros, for example: ```rust asm!( // or global_asm! or naked_asm! "nop", #[cfg(target_feature = "sse2")] "nop", // ... #[cfg(target_feature = "sse2")] a = const 123, // only used on sse2 ); ``` r? `@tgross35` cc `@traviscross` `@Amanieu` Now builds on rust-lang#140490, which should be merged first.
…meGomez Make check-cfg diagnostics work in `#[doc(cfg(..))]` This PR makes it so that the check-cfg `unexpected_cfgs` lint, is correctly emitted in `rustdoc`'s `#[doc(cfg(..))]`. This is achieved by adding a custom trait to `cfg_matches` (the method that emits the lint) which permits `rustc` and `rustdoc` to each have their way to emitting lints (via buffered lints/AST for `rustc` and via `TyCtxt`/HIR for `rustdoc`). The reason this is required is because buffered lints operates on the AST but `rustdoc` uses the HIR and by the time `rustdoc` calls `cfg_matches` we are way passed the point where buffered lints have been drain and emitted. Best reviewed commit by commit. r? `@jieyouxu` (for the compiler part) r? `@GuillaumeGomez` (for the rustdoc part)
gvn: bail out unavoidable non-ssa locals in repeat Fixes rust-lang#141251. We cannot transform `*elem` to `array[idx1]` in the following code, as `idx1` has already been modified. ```rust mir! { let array; let elem; { array = [*val; 5]; elem = &array[idx1]; idx1 = idx2; RET = *elem; Return() } } ``` Perhaps I could transform it to `array[0]`, but I prefer the conservative approach. r? mir-opt
…ip-ignore-141092, r=notriddle rustdoc: use descriptive tooltip if doctest is conditionally ignored fixes rust-lang#141092 here's what it looks like now: 
Make two transmute-related MIR lints into HIR lint Make `PTR_TO_INTEGER_TRANSMUTE_IN_CONSTS` (rust-lang#130540) and `UNNECESSARY_TRANSMUTES` (rust-lang#136083) into "normal" HIR-based lints. Funny enough this came up in the review of the latter (rust-lang#136083 (comment)), but I guess it just was overlooked. But anywyas, there's no reason for these to be MIR lints; in fact, it makes the suggestions for them a bit more complicated than necessary. Note that there's probably a few more simplifications and improvements to be done here. Follow-ups can be done in a separate PR, especially if they're about the messaging and suggestions themselves, which I didn't write.
…r=Kobzol ci: fix llvm test coverage try-job: x86_64-gnu-llvm-19-1 try-job: x86_64-gnu-llvm-20-1
…troalbini Bump master `stage0` compiler To include beta backport of revert rust-lang#141024 which should undo linker warnings during bootstrapping of Windows MSVC targets due to rust-lang#140176. Closes rust-lang#141395. r? `@Mark-Simulacrum` (or release)
Add `Result::map_or_default` and `Option::map_or_default` Closes: rust-lang#138068 _This PR has been recreated because of the inactivity of the author (Cf. rust-lang#138068 (comment)
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@bors r+ rollup=never p=5 |
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☀️ Test successful - checks-actions |
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📌 Perf builds for each rolled up PR:
previous master: be42293944 In the case of a perf regression, run the following command for each PR you suspect might be the cause: |
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 be42293 (parent) -> 04a67d5 (this PR) Test differencesShow 40450 test diffsStage 1
Stage 2
(and 31693 additional test diffs) Additionally, 8657 doctest diffs were found. These are ignored, as they are noisy. Job group index Test dashboardRun cargo run --manifest-path src/ci/citool/Cargo.toml -- \
test-dashboard 04a67d5a0587ed98632f82c404ae20f9f0a51a1d --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 |
This was referenced May 28, 2025
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Finished benchmarking commit (04a67d5): comparison URL. Overall result: ✅ improvements - no action needed@rustbot label: -perf-regression Instruction countThis is the most reliable metric that we have; it was used to determine the overall result at the top of this comment. However, even this metric can sometimes exhibit noise.
Max RSS (memory usage)Results (primary 0.4%, secondary 4.8%)This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.
CyclesResults (secondary -2.1%)This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.
Binary sizeThis benchmark run did not return any relevant results for this metric. Bootstrap: 779.377s -> 778.064s (-0.17%) |
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Rollup of 8 pull requests Successful merges: - rust-lang#140367 (add `asm_cfg`: `#[cfg(...)]` within `asm!`) - rust-lang#140894 (Make check-cfg diagnostics work in `#[doc(cfg(..))]`) - rust-lang#141252 (gvn: bail out unavoidable non-ssa locals in repeat) - rust-lang#141517 (rustdoc: use descriptive tooltip if doctest is conditionally ignored) - rust-lang#141551 (Make two transmute-related MIR lints into HIR lint) - rust-lang#141591 (ci: fix llvm test coverage) - rust-lang#141647 (Bump master `stage0` compiler) - rust-lang#141659 (Add `Result::map_or_default` and `Option::map_or_default`) r? `@ghost` `@rustbot` modify labels: rollup
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Started a build here #141252 (comment) to investigate whether that's the cause of the improvements, but probably no concrete follow-up needed given it's essentially just improvements. |
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I guess it is #140894. Will I be luckier? |
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Successful merges:
asm_cfg:#[cfg(...)]withinasm!#140367 (addasm_cfg:#[cfg(...)]withinasm!)#[doc(cfg(..))]#140894 (Make check-cfg diagnostics work in#[doc(cfg(..))])stage0compiler #141647 (Bump masterstage0compiler)Result::map_or_defaultandOption::map_or_default#141659 (AddResult::map_or_defaultandOption::map_or_default)r? @ghost
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