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Rollup of 8 pull requests #107341

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@rustbot modify labels: rollup

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yanns and others added 20 commits December 29, 2022 11:22
This will allow using miri on simd instructions
rust-lang/stdarch#1347 (comment)
Atomic operations for different widths (8-bit, 16-bit, 32-bit etc.) are
guarded by `target_has_atomic = "value"` symbol (i.e. `target_has_atomic
= "8"`) (and the other derivatives), but before this change, there was
no width-agnostic symbol indicating a general availability of atomic
operations.

This change introduces:

* `target_has_atomic_load_store` symbol when atomics for any integer
  width are supported by the target.
* `target_has_atomic` symbol when also CAS is supported.

Fixes rust-lang#106845

Signed-off-by: Michal Rostecki <vadorovsky@gmail.com>
Before this change, the following functions and macros were annotated
with `#[cfg(target_has_atomic = "8")]` or
`#[cfg(target_has_atomic_load_store = "8")]`:

* `atomic_int`
* `strongest_failure_ordering`
* `atomic_swap`
* `atomic_add`
* `atomic_sub`
* `atomic_compare_exchange`
* `atomic_compare_exchange_weak`
* `atomic_and`
* `atomic_nand`
* `atomic_or`
* `atomic_xor`
* `atomic_max`
* `atomic_min`
* `atomic_umax`
* `atomic_umin`

However, none of those functions and macros actually depend on 8-bit
width and they are needed for all atomic widths (16-bit, 32-bit, 64-bit
etc.). Some targets might not support 8-bit atomics (i.e. BPF, if we
would enable atomic CAS for it).

This change fixes that by removing the `"8"` argument from annotations,
which results in accepting the whole variety of widths.

Fixes rust-lang#106845
Fixes rust-lang#106795

Signed-off-by: Michal Rostecki <vadorovsky@gmail.com>
Use `LocalDefId`s instead
The old way would compress okay with DEFLATE, but this version makes
uncompressed docs smaller, which matters for memory usage and stuff
like `cargo doc`.

Try it out: <https://play.rust-lang.org/?code=fn+main()+{%0Alet+mut+v+=+Vec::new();%0Av.push(1+/+1);%0Aprintln!(%22{}%22,+v[0]);%0A}>

In local testing, this change shrinks sample pages by anywhere between
4.0% and 0.031%

    $ du -b after.dir/std/vec/struct.Vec.html before.dir/std/vec/struct.Vec.html
    759235  after.dir/std/vec/struct.Vec.html
    781842  before.dir/std/vec/struct.Vec.html

100*((759235-781842)/781842)=-2.8

    $ du -b after.dir/std/num/struct.Wrapping.html before.dir/std/num/struct.Wrapping.html
    3194173 after.dir/std/num/struct.Wrapping.html
    3204351 before.dir/std/num/struct.Wrapping.html

100*((3194173-3204351)/3204351)=-0.031

    $ du -b after.dir/std/keyword.match.html before.dir/std/keyword.match.html
    8151    after.dir/std/keyword.match.html
    8495    before.dir/std/keyword.match.html

100*((8151-8495)/8495)=-4.0

Gzipped tarball sizes seem shrunk, but not by much.

    du -s before.tar.gz after.tar.gz
    69600   before.tar.gz
    69480   after.tar.gz

100*((69480-69600)/69600)=-0.17
update stdarch

This will allow using miri on simd instructions
rust-lang/stdarch#1347 (comment)
… r=joshtriplett

core: Support variety of atomic widths in width-agnostic functions

Before this change, the following functions and macros were annotated with `#[cfg(target_has_atomic = "8")]` or
`#[cfg(target_has_atomic_load_store = "8")]`:

* `atomic_int`
* `strongest_failure_ordering`
* `atomic_swap`
* `atomic_add`
* `atomic_sub`
* `atomic_compare_exchange`
* `atomic_compare_exchange_weak`
* `atomic_and`
* `atomic_nand`
* `atomic_or`
* `atomic_xor`
* `atomic_max`
* `atomic_min`
* `atomic_umax`
* `atomic_umin`

However, none of those functions and macros actually depend on 8-bit width and they are needed for all atomic widths (16-bit, 32-bit, 64-bit etc.). Some targets might not support 8-bit atomics (i.e. BPF, if we would enable atomic CAS for it).

This change fixes that by removing the `"8"` argument from annotations, which results in accepting the whole variety of widths.

Fixes rust-lang#106845
Fixes rust-lang#106795

Signed-off-by: Michal Rostecki <vadorovsky@gmail.com>
…=compiler-errors

Detect references to non-existant messages in Fluent resources

Should help with cases like rust-lang#107091, where `{variable}` (a message reference) is accidentally typed, rather than `{$variable}` (a variable reference)

`@rustbot` label +A-translation
…, r=GuillaumeGomez

rustdoc: make item links consistently use `title="{shortty} {path}"`

The ordering in item tables was flipped in 3030cbe, making it inconsistent with the ordering in method signatures.

Compare these (before this PR is merged):

https://github.com/rust-lang/rust/blob/c8e6a9e8b6251bbc8276cb78cabe1998deecbed7/src/librustdoc/html/render/print_item.rs#L455-L459

https://github.com/rust-lang/rust/blob/c8e6a9e8b6251bbc8276cb78cabe1998deecbed7/src/librustdoc/html/format.rs#L903-L908
…e, r=lcnr

Use new solver during selection

r? `@lcnr`
rustdoc: use smarter encoding for playground URL

The old way would compress okay with DEFLATE, but this version makes uncompressed docs smaller, which matters for memory usage and stuff like `cargo doc`.

Try it out: <https://play.rust-lang.org/?code=fn+main()+{%0Alet+mut+v+=+Vec::new();%0Av.push(1+/+1);%0Aprintln!(%22{}%22,+v[0]);%0A}>

In local testing, this change shrinks sample pages by anywhere between 4.0% and 0.031%

    $ du -b after.dir/std/vec/struct.Vec.html before.dir/std/vec/struct.Vec.html
    759235  after.dir/std/vec/struct.Vec.html
    781842  before.dir/std/vec/struct.Vec.html

100*((759235-781842)/781842)=-2.8

    $ du -b after.dir/std/num/struct.Wrapping.html before.dir/std/num/struct.Wrapping.html
    3194173 after.dir/std/num/struct.Wrapping.html
    3204351 before.dir/std/num/struct.Wrapping.html

100*((3194173-3204351)/3204351)=-0.031

    $ du -b after.dir/std/keyword.match.html before.dir/std/keyword.match.html
    8151    after.dir/std/keyword.match.html
    8495    before.dir/std/keyword.match.html

100*((8151-8495)/8495)=-4.0

Gzipped tarball sizes seem shrunk, but not by much.

    du -s before.tar.gz after.tar.gz
    69600   before.tar.gz
    69480   after.tar.gz

100*((69480-69600)/69600)=-0.17
…omez

rustdoc: Stop using `HirId`s

Use `LocalDefId`s instead.
Rustdoc doesn't work with item bodies, so it almost never needs fine-grained HIR IDs.
…dule-item, r=GuillaumeGomez

rustdoc: remove mostly-unused CSS classes `import-item` and `module-item`
@rustbot rustbot added A-translation Area: Translation infrastructure, and migrating existing diagnostics to SessionDiagnostic S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-libs Relevant to the library team, which will review and decide on the PR/issue. T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue. rollup A PR which is a rollup labels Jan 27, 2023
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@bors r+ rollup=never p=8

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bors commented Jan 27, 2023

📌 Commit 9add2a8 has been approved by JohnTitor

It is now in the queue for this repository.

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Jan 27, 2023
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bors commented Jan 27, 2023

⌛ Testing commit 9add2a8 with merge 2308a8b17e638257cc9cbbf56e586f5594a11c6b...

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bors commented Jan 27, 2023

💔 Test failed - checks-actions

@bors bors removed the S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. label Jan 27, 2023
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The job dist-mipsel-linux failed! Check out the build log: (web) (plain)

Click to see the possible cause of the failure (guessed by this bot)
[RUSTC-TIMING] fluent_bundle test:false 1.416
error: using `iter` can result in unstable query results
   --> compiler/rustc_macros/src/diagnostics/fluent.rs:279:43
    |
279 |         for (&mref, &name) in messagerefs.iter() {
    |
    |
    = note: if you believe this case to be fine, allow this lint and add a comment explaining your rationale
    = note: `-D rustc::potential-query-instability` implied by `-D warnings`
[RUSTC-TIMING] rustc_macros test:false 0.953
error: could not compile `rustc_macros` due to previous error
warning: build failed, waiting for other jobs to finish...
[RUSTC-TIMING] rustc_macros test:false 2.528

@bors bors added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Jan 27, 2023
@JohnTitor JohnTitor closed this Jan 27, 2023
@JohnTitor JohnTitor deleted the rollup-dz8v5tp branch January 27, 2023 03:58
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10 participants