Rollup of 13 pull requests #120748
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Rollup of 13 pull requests #120748
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The new flag has been described in the Major Change Proposal at rust-lang/compiler-team#707
…more projections.
This makes it possible for two nodes/edges in the coverage graph to share the same counter, without causing the instrumentor to inject unwanted duplicate counter-increment statements.
Co-authored-by: Ralf Jung <[email protected]>
When encountering an `if let` tail expression without an `else` arm for an
enum with a single variant, suggest writing an irrefutable `let` binding
instead.
```
error[E0317]: `if` may be missing an `else` clause
--> $DIR/irrefutable-if-let-without-else.rs:8:5
|
LL | fn foo(x: Enum) -> i32 {
| --- expected `i32` because of this return type
LL | / if let Enum::Variant(value) = x {
LL | | value
LL | | }
| |_____^ expected `i32`, found `()`
|
= note: `if` expressions without `else` evaluate to `()`
= help: consider adding an `else` block that evaluates to the expected type
help: consider using an irrefutable `let` binding instead
|
LL ~ let Enum::Variant(value) = x;
LL ~ value
|
```
Fix rust-lang#61788.
Ignoring unused bindings should be a determination made by a human, `rustfix` shouldn't auto-apply the suggested change. Fix rust-lang#54196.
It's never used.
When `catch_fatal_errors` catches a `FatalErrorMarker`, it returns an `ErrorGuaranteed` that is conjured out of thin air with `unchecked_claim_error_was_emitted`. But that `ErrorGuaranteed` is never used. This commit changes it to instead conjure a `FatalError` out of thin air. (A non-deprecated action!) This makes more sense because `FatalError` and `FatalErrorMarker` are a natural pairing -- a `FatalErrorMarker` is created by calling `FatalError::raise`, so this is effectively getting back the original `FatalError`. This requires a tiny change in `catch_with_exit_code`. The old result of the `catch_fatal_errors` call there was `Result<Result<(), ErrorGuaranteed>, ErrorGuaranteed>` which could be `flatten`ed into `Result<(), ErrorGuaranteed>`. The new result of the `catch_fatal_errors` calls is `Result<Result<(), ErrorGuaranteed>, FatalError>`, which can't be `flatten`ed but is still easily matched for the success case.
By making non-unicode arguments a fatal error instead of a warning, we don't need to handle what comes after, which avoids the need for an `unchecked_claim_error_was_emitted` call.
`main_args` calls `from_matches`, which does lots of initialization. If anything goes wrong, `from_matches` emits an error message and returns `Err(1)` (or `Err(3)`). `main_args` then turns the `Err(1)` into `Err(ErrorGuaranteed)`, because that's what `catch_with_exit_code` requires on error. But `catch_with_exit_code` doesn't do anything with the `ErrorGuaranteed`, it just exits with `EXIT_FAILURE`. We can avoid the creation of the `ErrorGuaranteed` (which requires an undesirable `unchecked_claim_error_was_emitted` call), by changing `from_matches` to instead eagerly abort if anything goes wrong. The behaviour from the user's point of view is the same: an early abort with an `EXIT_FAILURE` exit code. And we can also simplify `from_matches` to return an `Option` instead of a `Result`: - Old `Err(0)` case --> `None` - Old `Err(_)` case --> fatal error. This requires similar changes to `ScrapeExamplesOptions::new` and `load_call_locations`.
- In `emit_producing_error_guaranteed`, only allow `Level::Error`. - In `emit_diagnostic`, only produce `ErrorGuaranteed` for `Level` and `DelayedBug`. (Not `Bug` or `Fatal`. They don't need it, because the relevant `emit` methods abort.) - Add/update various comments.
…teed`. It's more to-the-point.
Add armv8r-none-eabihf target for the Cortex-R52.
…, r=petrochenkov Add unstable `-Z direct-access-external-data` cmdline flag for `rustc` The new flag has been described in the Major Change Proposal at rust-lang/compiler-team#707 Fixes rust-lang#118053
Record coroutine kind in coroutine generics Oops, added a new substitution (the "kind" ty) to coroutines but forgot to record it in the `generics_of`. I'm surprised I left this out of the coroutine-closure PR -- I thought I made this change; I possibly rebased it out by accident. Fixes rust-lang#120732 r? oli-obk
rustbot
added
A-testsuite
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@bors r+ rollup=never p=5 |
bors
added
S-waiting-on-bors
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☀️ Test successful - checks-actions |
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📌 Perf builds for each rolled up PR:
previous master: cfb42e5d7f In the case of a perf regression, run the following command for each PR you suspect might be the cause: |
This was referenced Feb 7, 2024
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Finished benchmarking commit (8ace7ea): comparison URL. Overall result: ✅ improvements - no action needed@rustbot label: -perf-regression Instruction countThis is a highly reliable metric that was used to determine the overall result at the top of this comment.
Max RSS (memory usage)ResultsThis 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.
CyclesResultsThis 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 sizeResultsThis 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.
Bootstrap: 663.187s -> 662.945s (-0.04%) |
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#120302 various const interning cleanups @rust-timer build 324df8a |
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Finished benchmarking commit (324df8a): comparison URL. Overall result: ❌ regressions - no action neededInstruction countThis is a highly reliable metric that was used to determine the overall result at the top of this comment.
Max RSS (memory usage)ResultsThis 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.
CyclesResultsThis 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: 663.187s -> 663.897s (0.11%) |
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#120733 MirPass: make name more const @rust-timer build 054b20a |
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Finished benchmarking commit (054b20a): comparison URL. Overall result: ✅ improvements - no action neededInstruction countThis is a highly reliable metric that was used to determine the overall result at the top of this comment.
Max RSS (memory usage)ResultsThis 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.
CyclesResultsThis 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: 663.187s -> 664.411s (0.18%) |
|
Found it! The perf improvements are explained by #120733 MirPass: make name more const |
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Successful merges:
-Z direct-access-external-datacmdline flag forrustc#119162 (Add unstable-Z direct-access-external-datacmdline flag forrustc)if letinto irrefutableletif appropriate #120479 (Suggest turningif letinto irrefutableletif appropriate)unchecked_claim_error_was_emittedcalls #120735 (Remove someunchecked_claim_error_was_emittedcalls)r? @ghost
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