Revert "Compare tagged/niche-filling layout and pick the best one" #74610
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rust-highfive
added
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We can re-land this PR at a later point if there's a way to recover the perf regression here, but given the pretty large variety of performance regressions over the last week it seems good to eagerly revert this to be better able to evaluate the new version. |
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Gah it seems like our CI didn't like the auto-generated PR made by GitHub, I'll recreate this. |
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Closing in favor of #74611. |
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Reverts #74069. It caused a performance regression, see #74069 (comment). perf: https://perf.rust-lang.org/compare.html?start=d3df8512d2c2afc6d2e7d8b5b951dd7f2ad77b02&end=cfade73820883adf654fe34fd6b0b03a99458a51
r? @eddyb
cc @nnethercote