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| author | Jacob Pratt <jacob@jhpratt.dev> | 2025-04-11 21:20:59 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-04-11 21:20:59 +0200 |
| commit | bc05aaeeaac650f5b7f7cfdb609f6dc2175ee7f5 (patch) | |
| tree | abd49aa8c58deb57adbc875d621e575bab4043d9 /compiler/rustc_parse/src/parser/expr.rs | |
| parent | a6608294a93cdf57c2e4c7bc6239ddeb59642473 (diff) | |
| parent | 98d51fb44f4944b8bdad93a529d0625b9998bc93 (diff) | |
| download | rust-bc05aaeeaac650f5b7f7cfdb609f6dc2175ee7f5.tar.gz rust-bc05aaeeaac650f5b7f7cfdb609f6dc2175ee7f5.zip | |
Rollup merge of #139584 - oli-obk:horrible-experiment-1, r=petrochenkov
Avoid a reverse map that is only used in diagnostics paths r? `@petrochenkov` iterating a map until a value matches and returning the key is bad obviously, but it happens very rarely and only on diagnostics paths. It would also be a lot cheaper with https://github.com/rust-lang/rust/pull/138995. Which is actually why I'm trying this out, that PR adds a new entry in `create_def`, which makes `create_def` show up in cachegrind. So I'm trying out if removing adding an entry in `create_def` is a perf improvement
Diffstat (limited to 'compiler/rustc_parse/src/parser/expr.rs')
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