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2023-11-23Enforce NonZeroUsize on thread countMark Rousskov-4/+7
This allows avoiding some if != 0 checks when allocating worker-local datasets.
2023-11-14Fix some typoscui fliter-2/+2
Signed-off-by: cui fliter <imcusg@gmail.com>
2023-11-09Auto merge of #117557 - Zoxc:panic-prio, r=petrochenkovbors-13/+26
Make `FatalErrorMarker` lower priority than other panics This makes `FatalErrorMarker` lower priority than other panics in a parallel sections. If any other panics occur, they will be unwound instead of `FatalErrorMarker`. This ensures `rustc` will exit with the correct error code on ICEs. This fixes https://github.com/rust-lang/rust/issues/116659.
2023-11-03Make `FatalErrorMarker` lower priority than other panicsJohn Kåre Alsaker-13/+26
2023-11-03Use `filter_map` in `try_par_for_each_in`Josh Stone-7/+6
This simplifies the expression, especially for the rayon part, and also lets us drop the `E: Copy` constraint.
2023-10-20Avoid a `track_errors` by bubbling up most errors from `check_well_formed`Oli Scherer-0/+29
2023-09-25Rename `cold_path` to `outline`John Kåre Alsaker-6/+2
2023-09-11Rollup merge of #115548 - Zoxc:parallel-extract, r=wesleywiserMatthias Krüger-0/+188
Extract parallel operations in `rustc_data_structures::sync` into a new `parallel` submodule This extracts parallel operations in `rustc_data_structures::sync` into a new `parallel` submodule. This cuts down on the size of the large `cfg_if!` in `sync` and makes it easier to compare between serial and parallel variants.
2023-09-11Auto merge of #115388 - Zoxc:sharded-lock, r=SparrowLiibors-188/+187
Add optimized lock methods for `Sharded` and refactor `Lock` This adds methods to `Sharded` which pick a shard and also locks it. These branch on parallelism just once instead of twice, improving performance. Benchmark for `cfg(parallel_compiler)` and 1 thread: <table><tr><td rowspan="2">Benchmark</td><td colspan="1"><b>Before</b></th><td colspan="2"><b>After</b></th></tr><tr><td align="right">Time</td><td align="right">Time</td><td align="right">%</th></tr><tr><td>🟣 <b>clap</b>:check</td><td align="right">1.6461s</td><td align="right">1.6345s</td><td align="right"> -0.70%</td></tr><tr><td>🟣 <b>hyper</b>:check</td><td align="right">0.2414s</td><td align="right">0.2394s</td><td align="right"> -0.83%</td></tr><tr><td>🟣 <b>regex</b>:check</td><td align="right">0.9205s</td><td align="right">0.9143s</td><td align="right"> -0.67%</td></tr><tr><td>🟣 <b>syn</b>:check</td><td align="right">1.4981s</td><td align="right">1.4869s</td><td align="right"> -0.75%</td></tr><tr><td>🟣 <b>syntex_syntax</b>:check</td><td align="right">5.7629s</td><td align="right">5.7256s</td><td align="right"> -0.65%</td></tr><tr><td>Total</td><td align="right">10.0690s</td><td align="right">10.0008s</td><td align="right"> -0.68%</td></tr><tr><td>Summary</td><td align="right">1.0000s</td><td align="right">0.9928s</td><td align="right"> -0.72%</td></tr></table> cc `@SparrowLii`
2023-09-09Use `FreezeLock` for `CStore`John Kåre Alsaker-16/+45
2023-09-08Add Freeze::cloneJohn Kåre Alsaker-0/+10
2023-09-08Remove the `LockMode` enum and `dispatch`John Kåre Alsaker-102/+74
2023-09-08Refactor `Lock` implementationJohn Kåre Alsaker-240/+208
2023-09-08Add optimized lock methods for `Sharded`John Kåre Alsaker-14/+73
2023-09-07Use `Freeze` for `SourceFile.lines`John Kåre Alsaker-0/+12
2023-09-07Use `Freeze` for `SourceFile.external_src`John Kåre Alsaker-3/+44
2023-09-06Use a reference to the lock in the guardsJohn Kåre Alsaker-15/+14
2023-09-06Extract parallel operations in `rustc_data_structures::sync` into a new ↵John Kåre Alsaker-0/+188
`parallel` submodule
2023-09-02Rename `Freeze` to `FreezeLock`John Kåre Alsaker-7/+7
2023-09-02Add some commentsJohn Kåre Alsaker-1/+4
2023-09-02Use `RwLock` for `Freeze`John Kåre Alsaker-8/+10
2023-09-02Add `Freeze` type and use it to store `Definitions`John Kåre Alsaker-0/+104
2023-08-30Use conditional synchronization for LockJohn Kåre Alsaker-3/+279
2023-08-22Fix races conditions with `SyntaxContext` decodingJohn Kåre Alsaker-0/+6
2023-08-01Rollup merge of #114283 - oli-obk:parkin_lot_rwlock, r=SparrowLiiMatthias Krüger-21/+7
Use parking lot's rwlock even without parallel-rustc Considering that this doesn't affect perf, I think we should use the simplest solution.
2023-08-01Always use parking_lot's RwLock, even without parallel compilerOli Scherer-21/+7
2023-07-31remove repetitive wordscui fliter-1/+1
Signed-off-by: cui fliter <imcusg@gmail.com>
2023-05-18Remove unused `impl<T> WorkerLocal<Vec<T>>`.Nicholas Nethercote-7/+0
2023-04-27Auto merge of #107782 - Zoxc:worker-local, r=cjgillotbors-0/+180
Move the WorkerLocal type from the rustc-rayon fork into rustc_data_structures This PR moves the definition of the `WorkerLocal` type from `rustc-rayon` into `rustc_data_structures`. This is enabled by the introduction of the `Registry` type which allows you to group up threads to be used by `WorkerLocal` which is basically just an array with an per thread index. The `Registry` type mirrors the one in Rayon and each Rayon worker thread is also registered with the new `Registry`. Safety for `WorkerLocal` is ensured by having it keep a reference to the registry and checking on each access that we're still on the group of threads associated with the registry used to construct it. Accessing a `WorkerLocal` is micro-optimized due to it being hot since it's used for most arena allocations. Performance is slightly improved for the parallel compiler: <table><tr><td rowspan="2">Benchmark</td><td colspan="1"><b>Before</b></th><td colspan="2"><b>After</b></th></tr><tr><td align="right">Time</td><td align="right">Time</td><td align="right">%</th></tr><tr><td>🟣 <b>clap</b>:check</td><td align="right">1.9992s</td><td align="right">1.9949s</td><td align="right"> -0.21%</td></tr><tr><td>🟣 <b>hyper</b>:check</td><td align="right">0.2977s</td><td align="right">0.2970s</td><td align="right"> -0.22%</td></tr><tr><td>🟣 <b>regex</b>:check</td><td align="right">1.1335s</td><td align="right">1.1315s</td><td align="right"> -0.18%</td></tr><tr><td>🟣 <b>syn</b>:check</td><td align="right">1.8235s</td><td align="right">1.8171s</td><td align="right"> -0.35%</td></tr><tr><td>🟣 <b>syntex_syntax</b>:check</td><td align="right">6.9047s</td><td align="right">6.8930s</td><td align="right"> -0.17%</td></tr><tr><td>Total</td><td align="right">12.1586s</td><td align="right">12.1336s</td><td align="right"> -0.21%</td></tr><tr><td>Summary</td><td align="right">1.0000s</td><td align="right">0.9977s</td><td align="right"> -0.23%</td></tr></table> cc `@SparrowLii`
2023-04-24Split `{Idx, IndexVec, IndexSlice}` into their own modulesMaybe Waffle-1/+1
2023-04-16Move the WorkerLocal type from the rustc-rayon fork into rustc_data_structuresJohn Kåre Alsaker-0/+180
2023-04-09Fix some clippy::complexityNilstrieb-1/+1
2023-04-04Another AppendOnlyVecOli Scherer-10/+21
2023-04-04Replace another lock with an append-only vecOli Scherer-0/+16
2023-04-04Remove a lock in favor of an AppendOnlyVecOli Scherer-2/+7
2023-04-04Add a usize-indexed append-only-vecOli Scherer-2/+34
2023-02-21Use a lock-free datastructure for `source_span`Oli Scherer-0/+41
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