https://github.com/rust-lang/rust/pull/77023#issuecomment-703987379
suggests that the original PR introduced a significant perf regression.
This reverts commit e44784b875 / #77023.
https://github.com/rust-lang/rust/pull/77023#issuecomment-703987379
suggests that the original PR introduced a significant perf regression.
This reverts commit e44784b875 / #77023.