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Separate dataflow analysis and results
`Analysis` gets put into `Results` with `EntryStates`, by `iterate_to_fixpoint`. This has two problems:
- `Results` is passed various places where only `Analysis` is needed.
- `EntryStates` is passed around mutably everywhere even though it is immutable.
This commit mostly separates `Analysis` from `Results` and fixes these two problems.
r? `@davidtwco`
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and migrate most of remaining `error-pattern`s to it.
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Rustc pull update
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Also, these are normal Rust things (crates/packages), so remove the word *normal*.
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Update compiler-src.md
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Introduce a normalization chapter
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Refactor the dependency structure from a nested unordered list to a single-level ordered list.
IMO, this is clearer, but happy to close this PR without merging, if the change is not desired.
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This adds documentation on how to stabilize the edition in the compiler.
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This updates to the latest version of mdbook which has had a variety
of fixes of new features since the last update.
Changelog: https://github.com/rust-lang/mdBook/blob/master/CHANGELOG.md#mdbook-0448
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Based on lessons learned from 2024. There's probably still more details
to say here since it was a ton of work. These are the major points that
I remember.
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It was observed that some people were missing the `edition20xx` rustdoc
attribute. Although this probably won't solve that problem, I'd still
like to highlight it as something to be aware of.
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I found "Rustc dev guide subtree update awkward"
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fix(docs): add newlines between prefix/suffix chapters
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toolchain version does not need to be specified
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Signed-off-by: xizheyin <xizheyin@smail.nju.edu.cn>
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`Results` contains and `Analysis` and an `EntryStates`. The unfortunate
thing about this is that the analysis needs to be mutable everywhere
(`&mut Analysis`) which forces the `Results` to be mutable everywhere,
even though `EntryStates` is immutable everywhere.
To fix this, this commit renames `Results` as `AnalysisAndResults`,
renames `EntryStates` as `Results`, and separates the analysis and
results as much as possible. (`AnalysisAndResults` doesn't get much use,
it's mostly there to facilitate method chaining of
`iterate_to_fixpoint`.)
`Results` is immutable everywhere, which:
- is a bit clearer on how the data is used,
- avoids an unnecessary clone of entry states in
`locals_live_across_suspend_points`, and
- moves the results outside the `RefCell` in Formatter.
The commit also reformulates `ResultsHandle` as the generic `CowMut`,
which is simpler than `ResultsHandle` because it doesn't need the
`'tcx` lifetime and the trait bounds. It also which sits nicely
alongside the new use of `Cow` in `ResultsCursor`.
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`-Cforce-unwind-tables=yes`
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rustc-dev-guide subtree update
r? ``@ghost``
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support config extensions
_Copied from the `rustc-dev-guide` addition:_
>When working on different tasks, you might need to switch between different bootstrap >configurations.
>Sometimes you may want to keep an old configuration for future use. But saving raw config >values in
>random files and manually copying and pasting them can quickly become messy, especially if >you have a
>long history of different configurations.
>
>To simplify managing multiple configurations, you can create config extensions.
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>For example, you can create a simple config file named `cross.toml`:
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>```toml
>[build]
>build = "x86_64-unknown-linux-gnu"
>host = ["i686-unknown-linux-gnu"]
>target = ["i686-unknown-linux-gnu"]
>
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>[llvm]
>download-ci-llvm = false
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>[target.x86_64-unknown-linux-gnu]
>llvm-config = "/path/to/llvm-19/bin/llvm-config"
>```
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>Then, include this in your `bootstrap.toml`:
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>```toml
>include = ["cross.toml"]
>```
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>You can also include extensions within extensions recursively.
>
>**Note:** In the `include` field, the overriding logic follows a right-to-left order. For example,
in `include = ["a.toml", "b.toml"]`, extension `b.toml` overrides `a.toml`. Also, parent extensions
always overrides the inner ones.
try-job: x86_64-mingw-2
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- Rust backcompat removes the need to specify the version here
- Using these commands can result in a needless toolchain getting
downloaded, like in the case where user only has Nightly installed
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