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authorbors <bors@rust-lang.org>2022-06-17 07:35:22 +0000
committerbors <bors@rust-lang.org>2022-06-17 07:35:22 +0000
commitecdd374e6123d79b89c3ecea618d827c931b81cd (patch)
treed216370927b0464750c42b6e2f3cd89b0e21a835 /compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp
parent0423e06ca96067ea6f166921a7905ecb339eb155 (diff)
parentbc7cd2f351ab35e0830563858e827a2d397d176d (diff)
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Auto merge of #97863 - JakobDegen:bitset-choice, r=nnethercote
`BitSet` related perf improvements

This commit makes two changes:
 1. Changes `MaybeLiveLocals` to use `ChunkedBitSet`
 2. Overrides the `fold` method for the iterator for `ChunkedBitSet`

I have local benchmarks verifying that each of these changes individually yield significant perf improvements to #96451 . I'm hoping this will be true outside of that context too. If that is not the case, I'll try to gate things on where they help as needed

r? `@nnethercote` who I believe was working on closely related things, cc `@tmiasko` because of the destprop pr
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