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Makes the lld step avoid building it from source when possible: when
dist has packaged it along the other LLVM binaries for the rust-dev
component.
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Only include metadata for non-dynamic libraries in rustc-dev
The actual object code should be linked from librustc_driver.so, which is still included in rustc-dev. This saves on download time and disk usage.
Fixes https://github.com/rust-lang/rust/issues/103538
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do not add noalias in return position
`noalias` as a return attribute in LLVM indicates that the returned pointer does not alias anything else that is reachable from the caller, *including things reachable before this function call*. This is clearly not the case with a function like `fn id(Box<T>) -> Box<T>`, so we cannot use this attribute.
Fixes https://github.com/rust-lang/unsafe-code-guidelines/issues/385 (including an actual miscompilation that `@comex` managed to produce).
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Rollup of 8 pull requests
Successful merges:
- #95985 (Add PhantomData marker to Context to make Context !Send and !Sync)
- #104298 (Add notes and examples about non-intuitive `PathBuf::set_extension` behavior)
- #105558 (Reduce HIR debug output)
- #106315 (Cleanup `mingw-tidy` docker job)
- #106354 (Rustdoc-Json: Report discriminant on all kinds of enum variant.)
- #106366 (Fix rustdoc ICE on bad typedef with mismatching types)
- #106376 (Update books)
- #106383 (Document some of the AST nodes)
Failed merges:
- #106356 (clean: Remove `ctor_kind` from `VariantStruct`.)
r? `@ghost`
`@rustbot` modify labels: rollup
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Update books
## rust-lang/book
3 commits in a60f4316ec923a5ac2ed6a2eba6960edb832d855..2bd5d42c9956369132228da6409f0e68da56c51a
2022-12-22 21:37:10 UTC to 2022-12-22 21:36:14 UTC
- fix macos installation problem (rust-lang/book#3469)
- Update -guessing-game-tutorial incorrect output (rust-lang/book#3462)
- FIX: IT repo updated (rust-lang/book#3454)
## rust-lang/nomicon
1 commits in dd37e21ccee43918ed18a71581bb2af537ffe4fc..8ca261268068d80c0969260fff15199bad87b587
2022-12-30 16:32:09 UTC to 2022-12-30 16:32:09 UTC
- Discourage the use of transmute to construct invalid values (rust-lang/nomicon#388)
## rust-lang/rust-by-example
6 commits in 995df09b65c582eb6290ab7ea5d9485983eb4c37..8888f9428fe9a48f31de6bd2cef9b9bf80791edc
2023-01-01 12:53:50 UTC to 2022-12-21 10:18:31 UTC
- types/alias: use io::{Result,Error} instead of Io{Result,Error} (rust-lang/rust-by-example#1660)
- Fix sample code mismatching its comments (rust-lang/rust-by-example#1659)
- fix: add missing space (rust-lang/rust-by-example#1658)
- diverging: fix issues with example code (rust-lang/rust-by-example#1631)
- Update enum.md (rust-lang/rust-by-example#1645)
- Clean up Chapter 2 (Primitives) (rust-lang/rust-by-example#1651)
## rust-lang/rustc-dev-guide
5 commits in 8b42eb5f57d3d8ed2257a22d0e850d9db52afed3..b3e2a6e6c8a3aae5b5d950c63046f23bae07096d
2023-01-01 05:20:47 UTC to 2022-12-25 12:11:21 UTC
- Add help for when you update a submodule by accident (rust-lang/rustc-dev-guide#1537)
- Simplify "how to build and run" section (rust-lang/rustc-dev-guide#1528)
- Replace `$TARGET` with `host` (rust-lang/rustc-dev-guide#1514)
- Add more rebasing help (rust-lang/rustc-dev-guide#1536)
- Fix rustc_borrowck crate name typo (rust-lang/rustc-dev-guide#1535)
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GuillaumeGomez:fix-rustdoc-ice-typedef-type-mismatch, r=notriddle
Fix rustdoc ICE on bad typedef with mismatching types
Fixes https://github.com/rust-lang/rust/issues/106226.
Fixes #105742.
Fixes #105737.
Fixes #105334.
Fixes #96287.
In this case, it's ok to replace the panic with `rustc_error::raise` because the compiler provided us with a `Error`.
r? `@notriddle`
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Rustdoc-Json: Report discriminant on all kinds of enum variant.
Closes https://github.com/rust-lang/rust/issues/106299
Probably easier to review one commit at a time.
r? `@GuillaumeGomez`
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Cleanup `mingw-tidy` docker job
Fixes a couple small regressions from https://github.com/rust-lang/rust/pull/106048 and https://github.com/rust-lang/rust/pull/105714.
- Avoid `/checkout/src/ci/run.sh: line 187: [: =: unary operator expected`: https://github.com/rust-lang/rust/actions/runs/3809902408/jobs/6481611301#step:26:1701
- Avoid running `x check` in the tidy test, to get faster feedback. It's already run on the normal `mingw-check` job.
r? `@fee1-dead`
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Reduce HIR debug output
HIR debug output is currently very verbose, especially when used with the alternate (`#`) flag. This commit reduces the amount of noisy newlines by forcing a few small key types to stay on one line, which makes the output easier to read and scroll by.
```
$ rustc +after hello_world.rs -Zunpretty=hir-tree | wc -l
582
$ rustc +before hello_world.rs -Zunpretty=hir-tree | wc -l
932
```
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Reenable limited top-down MIR inlining
Reverts most of #105119 and uses an alternative strategy to prevent exponential blowup. Specifically, we allow doing top-down inlining up to depth at most five, and for at most one call site per nested body.
r? `@cjgillot`
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HIR debug output is currently very verbose, especially when used with
the alternate (`#`) flag. This commit reduces the amount of noisy
newlines by forcing a few small key types to stay on one line, which
makes the output easier to read and scroll by.
```
$ rustc +after hello_world.rs -Zunpretty=hir-tree | wc -l
582
$ rustc +before hello_world.rs -Zunpretty=hir-tree | wc -l
932
```
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Add codegen test for issue 103840
Closes #103840
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Encode spans relative to the enclosing item -- enable on nightly
Follow-up to #84373 with the flag `-Zincremental-relative-spans` set by default.
This PR seeks to remove one of the main shortcomings of incremental: the handling of spans.
Changing the contents of a function may require redoing part of the compilation process for another function in another file because of span information is changed.
Within one file: all the spans in HIR change, so typechecking had to be re-done.
Between files: spans of associated types/consts/functions change, so type-based resolution needs to be re-done (hygiene information is stored in the span).
The flag `-Zincremental-relative-spans` encodes local spans relative to the span of an item, stored inside the `source_span` query.
Trap: stashed diagnostics are referenced by the "raw" span, so stealing them requires to remove the span's parent.
In order to avoid too much traffic in the span interner, span encoding uses the `ctxt_or_tag` field to encode:
- the parent when the `SyntaxContext` is 0;
- the `SyntaxContext` when the parent is `None`.
Even with this, the PR creates a lot of traffic to the Span interner, when a Span has both a LocalDefId parent and a non-root SyntaxContext. They appear in lowering, when we add a parent to all spans, including those which come from macros, and during inlining when we mark inlined spans.
The last commit changes how queries of `LocalDefId` manage their cache. I can put this in a separate PR if required.
Possible future directions:
- validate that all spans are marked in HIR validation;
- mark macro-expanded spans relative to the def-site and not the use-site.
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rustdoc: use the regular arrow indicator for dir-entry CSS
This mostly reverts 468acca108e65101b802821bded17149dc1d86c9, while still fixing the problem it fixed by using an internal list-style-position. It results in a slight change in the hover indicator, but nothing misleading.
Preview: http://notriddle.com/notriddle-rustdoc-demos/dir-entry/src/std/lib.rs.html
## Before
## After
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Merge multiple mutable borrows of immutable binding errors
Fix #53466.
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- Avoid `/checkout/src/ci/run.sh: line 187: [: =: unary operator expected`: https://github.com/rust-lang/rust/actions/runs/3809902408/jobs/6481611301#step:26:1701
- Avoid running `x check` in the tidy test, to get faster feedback. It's
already run on the normal `mingw-check` job.
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Use the correct tracking issue for `dyn_star`
`#![feature(dyn_star)]` now has its own tracking issue, #102425.
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Closes #106299
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Add comment explaining what docblock-table GUI test is about
r? `@notriddle`
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Fix #53466.
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Added link from Targets to Platform Support in the book
If you search the web for "rust targets", the first result is the [targets page](https://doc.rust-lang.org/nightly/rustc/targets/index.html). However, usually when searching for this I'm interested in seeing the available triples with host information, so I just added a link to the correct page.
The entire `Targets` chapter could probably be combined into one page, since its three subchapters each only have a tiny section (I'll do this if requested)
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Rollup of 4 pull requests
Successful merges:
- #106280 (docs: add link to `Path::join` in `PathBuf::push`)
- #106297 (rustdoc: merge scrape-help CSS)
- #106328 (Add comment explaining what the GUI scrape-examples-fonts test is about)
- #106334 (Fix tidy unittest.)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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Fix tidy unittest.
The tidy unittests weren't compiling due to a change made a long while ago to the `Version` type.
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Add comment explaining what the GUI scrape-examples-fonts test is about
r? `@notriddle`
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rustdoc: merge scrape-help CSS
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refactor: merge error code `E0465` into `E0464`
`E0465` is an undocumented and untested error code that is functionally identical to `E0464`. This PR merges `E0465` into `E0464`, thus documenting and testing another error code (#61137).
r? `@GuillaumeGomez` (not sure if you want to review this but it's relevant to my other PRs that you have reviewed)
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The actual object code should be linked from librustc_driver.so,
which is still included in rustc-dev. This saves on download time and
disk usage.
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Suppress errors due to TypeError not coercing with inference variables
Fixes #75331
Fixes #68507
Fixes #82323
cc `@estebank`
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