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Rollup of 5 pull requests #96263

Merged
merged 38 commits into from Apr 21, 2022
Merged

Rollup of 5 pull requests #96263

merged 38 commits into from Apr 21, 2022

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Dylan-DPC
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Successful merges:

Failed merges:

r? @ghost
@rustbot modify labels: rollup

Create a similar rollup

GuillaumeGomez and others added 30 commits April 18, 2022 20:59
* If there are generics, don't allow to have quotes.
* Move all functions outside parseQuery
 * Forbid generics without a path (so "<p>" is forbidden).
 * Change `handleSingleArg` so that it takes `results_others`, `results_in_args` and `results_returned` as arguments instead of using the "global" variables.
 * Change `createQueryElement` so that it returns the newly created element instead of taking `elems` as argument.
 * Improve documentation
…eBNF does not allow elements without a name
This breaks on submodules (see rust-lang#96188). Disable the assertion for now until I can think of a proper
fix.

This doesn't revert any of the changes in `Step`s themselves, only what
`ShouldRun::paths` does.
This implementation returns a best attempt at the current exe path. On
fuchsia, fdio will always use `argv[0]` as the process name and if it is
not set then an error will be returned. Because this is not guaranteed
to be the case, this implementation returns an error if `argv` does not
contain any elements.
mbartlett21 and others added 8 commits April 20, 2022 13:14
Previously, we would retrieve the span from the `Body` using
the `locations` field. However, we may end up changing the
`locations` field when moving a constraint from a promoted
to a different body.

We now store the original `Span` in a dedication field, so that
changes to the `locations` do not affect the quality of our
diagnostics.
…ch, r=notriddle

Create real parser for search queries

You can test it [here](https://rustdoc.crud.net/imperio/improve-rustdoc-search/std/index.html).

This PR adds a real parser for the query engine in rustdoc. The parser is quite simple but it allows to makes query handling much easier. I added a new testsuite to ensure it works as expected and ran fuzzing checks on it for a few hours without problems.

So about the parser: as you can see in the screenshot, it handles recursive generics parsing. It also allows to set which item should use exact matching by adding double-quotes around it (look for `exact_search` in the screenshot).

Now about the query engine itself: I simplified it a lot thanks to the parsed query. It behaves mostly the same when there is only one argument, but is much more powerful when there are more than one.

When making this change, we also removed the support for multi-query.

PS: A big part of the PR is tests and test-related code. :)

r? `@camelid`
…andry

[fuchsia] Add implementation for `current_exe`

This implementation returns a best attempt at the current exe path. On
fuchsia, fdio will always use `argv[0]` as the process name and if it is
not set then an error will be returned. Because this is not guaranteed
to be the case, this implementation returns an error if `argv` does not
contain any elements.
Remove assertion that all paths in `ShouldRun` exist

This breaks on submodules (see rust-lang#96188). Disable the assertion for now until I can think of a proper
fix.

This doesn't revert any of the changes in `Step`s themselves, only what
`ShouldRun::paths` does.
Fix locations for intrinsics impls and change to links

These still referred to `rustc_mir`.
Add an explicit `Span` field to `OutlivesConstraint`

Previously, we would retrieve the span from the `Body` using
the `locations` field. However, we may end up changing the
`locations` field when moving a constraint from a promoted
to a different body.

We now store the original `Span` in a dedication field, so that
changes to the `locations` do not affect the quality of our
diagnostics.
@rustbot rustbot added 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 Apr 20, 2022
@Dylan-DPC
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@bors r+ p=5 rollup=never

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bors commented Apr 20, 2022

📌 Commit 463c94a has been approved by Dylan-DPC

@bors bors added the S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. label Apr 20, 2022
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bors commented Apr 21, 2022

⌛ Testing commit 463c94a with merge 7be1da0...

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bors commented Apr 21, 2022

☀️ Test successful - checks-actions
Approved by: Dylan-DPC
Pushing 7be1da0 to master...

@bors bors added the merged-by-bors This PR was explicitly merged by bors. label Apr 21, 2022
@bors bors merged commit 7be1da0 into rust-lang:master Apr 21, 2022
@rustbot rustbot added this to the 1.62.0 milestone Apr 21, 2022
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Finished benchmarking commit (7be1da0): comparison url.

Summary:

  • Primary benchmarks: 😿 relevant regressions found
  • Secondary benchmarks: 😿 relevant regressions found
Regressions 😿
(primary)
Regressions 😿
(secondary)
Improvements 🎉
(primary)
Improvements 🎉
(secondary)
All 😿 🎉
(primary)
count1 2 6 0 0 2
mean2 2.0% 6.3% N/A N/A 2.0%
max 3.2% 6.9% N/A N/A 3.2%

If you disagree with this performance assessment, please file an issue in rust-lang/rustc-perf.

Next Steps: If you can justify the regressions found in this perf run, please indicate this with @rustbot label: +perf-regression-triaged along with sufficient written justification. If you cannot justify the regressions please open an issue or create a new PR that fixes the regressions, add a comment linking to the newly created issue or PR, and then add the perf-regression-triaged label to this PR.

@rustbot label: +perf-regression

Footnotes

  1. number of relevant changes

  2. the arithmetic mean of the percent change

@rustbot rustbot added the perf-regression Performance regression. label Apr 21, 2022
@rylev
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rylev commented Apr 26, 2022

@Dylan-DPC The goodness is that the regression in primary benchmarks is dominated by a noisy syn-1.0.89 (see rust-lang/rustc-perf#1301). However, the regressions in the secondary benchmarks seem real and point towards #96236 as the possible cause (cc @Aaron1011).

I ran cachegrind diff on wg-grammar check full and got these results which shows <rustc_borrowck::region_infer::Trace as alloc::vec::spec_from_elem::SpecFromElem>::from_elem being called a lot more often after this change.

The regressions are not huge but they are certainly significant and real. If something obvious stands out to those more familiar with this code, it might be worth poking around. Otherwise, we can just call this triaged.

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rylev commented May 17, 2022

Haven't gotten a response here, so calling this triaged (since the regressions were either noise or pretty small).

@rustbot label: +perf-regression-triaged

@rustbot rustbot added the perf-regression-triaged The performance regression has been triaged. label May 17, 2022
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9 participants