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Update Clippy
Bi-weekly Clippy update, as per the [new policy](https://github.com/rust-lang/rust-clippy/blob/master/CONTRIBUTING.md#syncing-back-changes-in-clippy-to-rust-langrust).
r? @Manishearth
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r=oli-obk
New pass to optimize `if`conditions on integrals to switches on the integer
Fixes #75144
Pass to convert `if` conditions on integrals into switches on the integral.
For an example, it turns something like
```
_3 = Eq(move _4, const 43i32);
StorageDead(_4);
switchInt(_3) -> [false: bb2, otherwise: bb3];
```
into:
```
switchInt(_4) -> [43i32: bb3, otherwise: bb2];
```
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Fixes #75144
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Should not apply field accessing on enum
Closes #75977
But I'm surprised that `x.py test --stage 1` and CI didn't catch this with existing testcase.
r? @estebank
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Unify error reporting for intra-doc links
- Give a suggestion even if there is no span available
- Give a more accurate description of the change than 'use the
disambiguator'
- Write much less code
Closes #75836.
r? @euclio
cc @pickfire - this gets rid of 'disambiguator' like you suggested in https://github.com/rust-lang/rust/pull/75079#discussion_r464464195.
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Set ninja=true by default
Ninja substantially improves LLVM build time. On a 96-way system, using
Make took 248s, and using Ninja took 161s, a 35% improvement.
We already require a variety of tools to build Rust. If someone wants to
build without Ninja (for instance, to minimize the set of packages
required to bootstrap a new target), they can easily set `ninja=false`
in `config.toml`. Our defaults should help people build Rust (and LLVM)
faster, to speed up development.
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Fix a typo in #75781
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Build dist-x86_64-musl with --enable-profiler.
Trying to build a Rust project with `-Zprofile` for target
x86_64-unknown-linux-musl using rustc 1.46.0-nightly (346aec9b0
2020-07-11), installed with rustup, results in the following error.
```
export RUSTFLAGS="-Zprofile -Ccodegen-units=1 -Copt-level=0 -Clink-dead-code -Coverflow-checks=off -Zpanic_abort_tests -Cpanic=abort"export CARGO_INCREMENTAL=0$ cargo build --target=x86_64-unknown-linux-muslCompiling hello_world v0.1.0 (…)error[E0463]: can't find crate for `profiler_builtins`
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= note: the compiler may have been built without the profiler runtime
error: aborting due to previous error
For more information about this error, try `rustc --explain E0463`.error: could not compile `hello_world`.
To learn more, run the command again with --verbose.
```
`-Zprofile` is required here to enable grcov profiling.
This is similar in nature to issue
https://github.com/rust-lang/rust/issues/57257, which has been fixed in
asimilar way at https://github.com/rust-lang/rust/pull/60476 .
A fix for Android has also landed not long ago:
https://github.com/rust-lang/rust/pull/70054 .
Signed-off-by: Tiago Lam <tiagol@hadean.com>
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Trying to build a Rust project with `-Zprofile` for target
x86_64-unknown-linux-musl using rustc 1.46.0-nightly (346aec9b0
2020-07-11), installed with rustup, results in the following error.
```
export RUSTFLAGS="-Zprofile -Ccodegen-units=1 -Copt-level=0 -Clink-dead-code -Coverflow-checks=off -Zpanic_abort_tests -Cpanic=abort"export CARGO_INCREMENTAL=0$ cargo build --target=x86_64-unknown-linux-muslCompiling hello_world v0.1.0 (…)error[E0463]: can't find crate for `profiler_builtins`
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= note: the compiler may have been built without the profiler runtime
error: aborting due to previous error
For more information about this error, try `rustc --explain E0463`.error: could not compile `hello_world`.
To learn more, run the command again with --verbose.
```
`-Zprofile` is required here to enable grcov profiling.
This is similar in nature to issue
https://github.com/rust-lang/rust/issues/57257, which has been fixed in
asimilar way at https://github.com/rust-lang/rust/pull/60476 .
A fix for Android has also landed not long ago:
https://github.com/rust-lang/rust/pull/70054 .
Signed-off-by: Tiago Lam <tiagol@hadean.com>
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Run cancel-outdated-builds after fully setting up the env
This PR fixes #75995 not working as expected.
Due to GitHub Actions limitations the environment variables set in the build matrix definition are not added by the GHA runner, but by the `setup-environment.sh` script. Before this PR the `cancel-outdated-builds` action was started before that script, so it was never able to detect the "suppression" variable added in #75995. This PR reorders the jobs to make sure `setup-environment.sh` runs before the action.
r? @Mark-Simulacrum
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Adds --bless support to test/run-make-fulldeps
The ability to "bless" output for some of these tests is critical to
making it practical to adapt tests to unrelated changes.
This is needed for new coverage tests, as shown in PR #76004 .
r? @tmandry
FYI: @wesleywiser
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Rename rustdoc/test -> rustdoc/doctest
This modules contains the implementation of doctests, and not the
tests of rustdoc itself. This name is confusing, so let's rename it to
doctest for clarity.
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Fix ICE due to carriage return w/ multibyte char
Based off of this [commit](https://github.com/kfitch/rust/commit/972560b83f80e1219b5735ff3d751c034115b08e)
Fixes #70381
CC: @Dylan-DPC
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Clean up E0761 explanation
r? @Dylan-DPC
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Improve rendering of crate features via doc(cfg)
The current rendering of crate features with `doc(cfg(feature = ".."))` is verbose and unwieldy for users, `doc(cfg(target_feature = ".."))` is special-cased to make it render nicely, and a similar rendering can be applied to `doc(cfg(feature))` to make it easier for users to read.
I also added special casing of `all`/`any` cfgs consisting of just `feature`/`target-feature` to remove the repetitive "target/crate feature" prefix.
The downside of this current rendering is that there is no distinction between `feature` and `target_feature` in the shorthand display. IMO this is ok, or if anything `target_feature` should have a more verbose shorthand, because `doc(cfg(feature = ".."))` usage is going to vastly outstrip `doc(cfg(target_feature = ".."))` usage in non-stdlib crates when it eventually stabilizes (or even before that given the number of crates using `cfg_attr(docsrs)` like constructs).
## Previously
<img width="259" alt="Screenshot 2020-08-09 at 13 32 42" src="https://user-images.githubusercontent.com/81079/89731110-d090c000-da44-11ea-96fa-56adc6339123.png">
<img width="438" alt="image" src="https://user-images.githubusercontent.com/81079/89731116-d7b7ce00-da44-11ea-87c6-022d192d6eca.png">
<img width="765" alt="image" src="https://user-images.githubusercontent.com/81079/89731152-24030e00-da45-11ea-9552-1c270bff2729.png">
<img width="671" alt="image" src="https://user-images.githubusercontent.com/81079/89731158-28c7c200-da45-11ea-8acb-97d8a4ce00eb.png">
## Now
<img width="216" alt="image" src="https://user-images.githubusercontent.com/81079/89731123-e1d9cc80-da44-11ea-82a8-5900bd9448a5.png">
<img width="433" alt="image" src="https://user-images.githubusercontent.com/81079/89731127-e8684400-da44-11ea-9d18-572fd810f19f.png">
<img width="606" alt="image" src="https://user-images.githubusercontent.com/81079/89731162-2feed000-da45-11ea-98d2-8a88c364d903.png">
<img width="669" alt="image" src="https://user-images.githubusercontent.com/81079/89731991-ccb46c00-da4b-11ea-9416-cd20a3193826.png">
cc #43781
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Abort when foreign exceptions are caught by catch_unwind
Prior to this PR, foreign exceptions were not caught by catch_unwind, and instead passed through invisibly. This represented a painful soundness hole in some libraries ([take_mut](https://github.com/Sgeo/take_mut/blob/master/src/lib.rs#L37)), which relied on `catch_unwind` to handle all possible exit paths from a closure.
With this PR, foreign exceptions are now caught by `catch_unwind` and will trigger an abort since catching foreign exceptions is currently UB according to the latest proposals by the FFI unwind project group.
cc @rust-lang/wg-ffi-unwind
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Disable cancel-outdated-builds for auto-fallible
`cancel-outdated-builds` doesn't need to be enabled on fallible jobs, and it's actually making it harder for us to see if https://github.com/rust-lang/rust/issues/71988 is fixed. This adds some temporary code to avoid `auto-fallible` jobs from being cancelled by our tooling.
r? @Mark-Simulacrum
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Improve help popup
Fixes #75623.
The second commit is just a slight improvement: the help popup won't be created until someone presses "?" or ESC. Not a big improvement in itself but considering the low amount of code required, I think it was worth the shot.
r? @jyn514
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The ability to "bless" output for some of these tests is critical to
making it practical to adapt tests to unrelated changes.
This is needed for new coverage tests, as shown in PR #75828 (or its
derivative).
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Point to a move-related span when pointing to closure upvars
Fixes #75904
When emitting move/borrow errors, we may point into a closure to
indicate why an upvar is used in the closure. However, we use the
'upvar span', which is just an arbitrary usage of the upvar. If the
upvar is used in multiple places (e.g. a borrow and a move), we may end
up pointing to the borrow. If the overall error is a move error, this
can be confusing.
This PR tracks the span that caused an upvar to become captured by-value
instead of by-ref (assuming that it's not a `move` closure). We use this
span instead of the 'upvar' span when we need to point to an upvar usage
during borrow checking.
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This modules contains the implementation of doctests, and not the
tests of rustdoc itself. This name is confusing, so let's rename it to
doctest for clarity.
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r=oli-obk
[AVR] Replace broken 'avr-unknown-unknown' target with 'avr-unknown-gnu-atmega328' target
The `avr-unknown-unknown` target has never worked correctly, always trying to invoke
the host linker and failing. It aimed to be a mirror of AVR-GCC's
default handling of the `avr-unknown-unknown' triple (assume bare
minimum chip features, silently skip linking runtime libraries, etc).
This behaviour is broken-by-default as it will cause a miscompiled executable
when flashed.
This patch improves the AVR builtin target specifications to instead
expose only a 'avr-unknown-gnu-atmega328' target. This target system is
`gnu`, as it uses the AVR-GCC frontend along with avr-binutils. The
target triple ABI is 'atmega328'.
In the future, it should be possible to replace the dependency on
AVR-GCC and binutils by using the in-progress AVR LLD and compiler-rt support.
Perhaps at that point it would make sense to add an
'avr-unknown-unknown-atmega328' target as a better default when
implemented.
There is no current intention to add in-tree AVR target specifications for other
AVR microcontrollers - this one can serve as a reference implementation
for other devices via `rustc --print target-spec-json
avr-unknown-gnu-atmega328p`.
There should be no users of the existing 'avr-unknown-unknown' Rust
target as a custom target specification JSON has always been
recommended, and the avr-unknown-unknown target could never pass the
linking step anyway.
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Bump version to 1.48 and update cfg(bootstrap)s
r? @Mark-Simulacrum
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Await on mismatched future types
Closes #61076
This PR suggests to `await` on:
1. `async_fn().bar() => async_fn().await.bar()`
2. `async_fn().field => async_fn().await.field`
3. ` if let x = async() {} => if let x = async().await {}`
r? @tmandry @estebank
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Based off of
https://github.com/kfitch/rust/commit/972560b83f80e1219b5735ff3d751c034115b08e
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Highlight crate links like normal links
Fixes #75823.
Cc @jyn514
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Rollup of 10 pull requests
Successful merges:
- #74730 (Hexagon libstd: update type defs)
- #75758 (Fixes for VxWorks)
- #75780 (Unconfuse Unpin docs a bit)
- #75806 (Prevent automatic page change when using history)
- #75818 (Update docs for SystemTime Windows implementation)
- #75837 (Fix font color for help button in ayu and dark themes)
- #75870 (Unify theme choices border color in ayu theme)
- #75875 (Shorten liballoc vec resize intra-doc link)
- #75953 (Fix swapped stability attributes for rustdoc lints)
- #75958 (Avoid function-scoping global variables)
Failed merges:
r? @ghost
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Avoid function-scoping global variables
In 2e6f2e885506ee4, we added a main function to the publish_toolstate.py script.
Unfortunately, we missed that the Python program implicitly declares global
variables in that code, which means that adding a function changes variable
scoping and breaks other code.
This commit avoids introducing that function and adds a warning to future
editors of the code.
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Fix swapped stability attributes for rustdoc lints
This fixes a regression introduced in https://github.com/rust-lang/rust/pull/74855. Previously, `missing_doc_code_examples` would be run on stable and `private_doc_tests` would only be run on nightly. Now, it correctly does the reverse.
Closes https://github.com/rust-lang/rust/issues/75951.
r? @ehuss
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Unify theme choices border color in ayu theme
There was a slight color difference in the theme choice menu borders:
r? @Cldfire
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Fix font color for help button in ayu and dark themes
A nice before/after:
For the ayu theme, the change is very "light", the font color was already close to white, so I unified the color with the pictures of the other buttons:
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GuillaumeGomez:prevent-automatic-page-change-history, r=pickfire
Prevent automatic page change when using history
Fixes #75774.
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Fixes for VxWorks
r? @alexcrichton
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VariantDef: move `recovered` into `VariantFlags`
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Let people know that they can set ninja=false if they don't want to
install ninja.
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Windows CI builds already install ninja. Install it in all the
Docker-based builds as well.
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Should be re-enabled when we have a recipe for installing ninja on
macOS.
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Ninja substantially improves LLVM build time. On a 96-way system, using
Make took 248s, and using Ninja took 161s, a 35% improvement.
We already require a variety of tools to build Rust. If someone wants to
build without Ninja (for instance, to minimize the set of packages
required to bootstrap a new target), they can easily set `ninja=false`
in `config.toml`. Our defaults should help people build Rust (and LLVM)
faster, to speed up development.
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