Rollup of 7 pull requests #129442
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Rollup of 7 pull requests #129442
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This commit is a result of the discussion on rust-lang#128475 and incorporates parts of rust-lang#109807 as well. This is all done as a new page of documentation for the `wasm32-unknown-unknown` target which previously did not exist. This new page goes into details about the preexisting target and additionally documents the expectations for WebAssembly features and code generation. The tl;dr is that LLVM will enable features over time after most engines have had support for awhile. Compiling without features requires `-Ctarget-cpu=mvp` to rustc plus `-Zbuild-std` to Cargo. Closes rust-lang#109807 Closes rust-lang#128475
Co-authored-by: Mark Rousskov <mark.simulacrum@gmail.com>
Co-authored-by: Jubilee <46493976+workingjubilee@users.noreply.github.com>
Co-authored-by: Josh Stone <cuviper@gmail.com>
The LLVM commit llvm/llvm-project@abf69a1 changed the IR in a few comparison tests: https://buildkite.com/llvm-project/rust-llvm-integrate-prototype/builds/30500#01917017-26fe-4a4d-956b-725a2903e5a8 Adapted accordingly.
Since the `compiler_builtins` update [1], ABI bugs on x86 should be resolved. Enable tests for f16 on these platforms now. `f16` math functions (`reliable_f16_math`) are still excluded because there is an LLVM crash for powi [2]. [1]: rust-lang#125016 [2]: llvm/llvm-project#105747
Since `f16` now works on x86 and x86-64, change doctests to use this instead of aarch64. This is to make sure any changes get run in PR CI.
…avidtwco Implement `-Z embed-source` (DWARFv5 source code embedding extension) Implement rust-lang/compiler-team#764 MCP which adds an unstable flag that exposes LLVM's [DWARFv5 source code embedding](https://dwarfstd.org/issues/180201.1.html) support.
Enable `f16` tests on x86 and x86-64 Since the `compiler_builtins` update [1], ABI bugs on x86 should be resolved. Enable tests for f16 on these platforms now. `f16` math functions (`reliable_f16_math`) are still excluded because there is an LLVM crash for powi [2]. [1]: rust-lang#125016 [2]: llvm/llvm-project#105747 try-job: dist-i586-gnu-i586-i686-musl try-job: x86_64-gnu-distcheck
…jieyouxu Document WebAssembly target feature expectations This commit is a result of the discussion on rust-lang#128475 and incorporates parts of rust-lang#109807 as well. This is all done as a new page of documentation for the `wasm32-unknown-unknown` target which previously did not exist. This new page goes into details about the preexisting target and additionally documents the expectations for WebAssembly features and code generation. The tl;dr is that LLVM will enable features over time after most engines have had support for awhile. Compiling without features requires `-Ctarget-cpu=mvp` to rustc plus `-Zbuild-std` to Cargo. Closes rust-lang#109807 Closes rust-lang#119811 Closes rust-lang#128475
…r=cuviper Add a missing compatibility note in the 1.80.0 release notes rust-lang#99969 missed being included in the release notes. As discussed [on Zulip](https://rust-lang.zulipchat.com/#narrow/stream/241545-t-release/topic/.2399969.20missed.20the.20release.20notes/near/463002451). (the discussion about the _a posteriori_ breakage the ecosystem is experiencing is another topic) Thanks r? ````@rust-lang/release````
…ffset, r=Amanieu
Stabilize feature `char_indices_offset`
Stabilized API:
```rust
impl CharIndices<'_> {
pub fn offset(&self) -> usize;
}
```
Tracking issue: rust-lang#83871
Closes rust-lang#83871
I also attempted to improved the documentation to make it more clear that it returns the offset of the character that will be returned by the next call to `next()`.
adapt integer comparison tests for LLVM 20 IR changes The LLVM commit llvm/llvm-project@abf69a1 changed the IR in a few comparison tests: https://buildkite.com/llvm-project/rust-llvm-integrate-prototype/builds/30500#01917017-26fe-4a4d-956b-725a2903e5a8 Adapted accordingly. ``@rustbot`` label: +llvm-main r? ``@nikic``
…ler-errors
Fix handling of macro arguments within the `dropping_copy_types` lint
This PR fixes the handling of spans with different context (aka macro arguments) than the primary expression within the different `{drop,forget}ing_copy_types` and `{drop,forget}ing_references` lints.
<details>
<summary>Before</summary>
```
warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
--> drop_writeln.rs:5:5
|
5 | drop(writeln!(&mut msg, "test"));
| ^^^^^--------------------------^
| |
| argument has type `Result<(), std::fmt::Error>`
|
= note: `#[warn(dropping_copy_types)]` on by default
help: use `let _ = ...` to ignore the expression or result
--> /home/[..]/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/macros/mod.rs:688:9
|
68| let _ =
| ~~~~~~~
```
</details>
<details>
<summary>With this PR</summary>
```
warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
--> drop_writeln.rs:5:5
|
5 | drop(writeln!(&mut msg, "test"));
| ^^^^^--------------------------^
| |
| argument has type `Result<(), std::fmt::Error>`
|
= note: `#[warn(dropping_copy_types)]` on by default
help: use `let _ = ...` to ignore the expression or result
|
5 - drop(writeln!(&mut msg, "test"));
5 + let _ = writeln!(&mut msg, "test");
|
```
</details>
````@rustbot```` label +L-dropping_copy_types
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@bors r+ rollup=never p=7 |
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Rollup of 7 pull requests Successful merges: - rust-lang#126985 (Implement `-Z embed-source` (DWARFv5 source code embedding extension)) - rust-lang#128349 (Enable `f16` tests on x86 and x86-64) - rust-lang#128511 (Document WebAssembly target feature expectations) - rust-lang#129263 (Add a missing compatibility note in the 1.80.0 release notes) - rust-lang#129276 (Stabilize feature `char_indices_offset`) - rust-lang#129350 (adapt integer comparison tests for LLVM 20 IR changes) - rust-lang#129408 (Fix handling of macro arguments within the `dropping_copy_types` lint) r? `@ghost` `@rustbot` modify labels: rollup
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💔 Test failed - checks-actions |
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Successful merges:
-Z embed-source(DWARFv5 source code embedding extension) #126985 (Implement-Z embed-source(DWARFv5 source code embedding extension))f16tests on x86 and x86-64 #128349 (Enablef16tests on x86 and x86-64)char_indices_offset#129276 (Stabilize featurechar_indices_offset)dropping_copy_typeslint #129408 (Fix handling of macro arguments within thedropping_copy_typeslint)r? @ghost
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