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(merge: b629c85 f1063c0)
Auto merge of #99677 - pietroalbini:pa-fix-97786-perf-regression, r=Mark-Simulacrum
authorbors <bors@rust-lang.org>
Tue, 26 Jul 2022 07:29:29 +0000 (07:29 +0000)
committerbors <bors@rust-lang.org>
Tue, 26 Jul 2022 07:29:29 +0000 (07:29 +0000)
commit96b9bb4620f4d48aa25c381c7ea77e0cab48ac5b
tree9490d7c26ad5b2283128c2f399953671116097d1tree | snapshot
parentb629c85bd74dfb730a3e9308312b007c0bf027cbcommit | diff
parentf1063c054d3bc9d42eebf128e13ad25e9014a64ecommit | diff
Auto merge of #99677 - pietroalbini:pa-fix-97786-perf-regression, r=Mark-Simulacrum

Remove new allocations from `imported_source_files`

https://github.com/rust-lang/rust/pull/97786 introduced a [large performance regression](https://github.com/rust-lang/rust/pull/97786#issuecomment-1176552836). After some local investigation it turns out the allocations performed by my change were the cause of the perf regression. This PR refactors my change to remove those allocations.
Empowering everyone to build reliable and efficient software.