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(merge: e9920ef 3045b75)
Auto merge of #81486 - ssomers:btree_separate_drop, r=Mark-Simulacrum
authorbors <bors@rust-lang.org>
Fri, 12 Feb 2021 06:34:21 +0000 (06:34 +0000)
committerbors <bors@rust-lang.org>
Fri, 12 Feb 2021 06:34:21 +0000 (06:34 +0000)
commita118ee2c13cc96ceb27bd5030c1cca1052377604
tree0064f78771edee2e67a1982468f23362c85bee7etree | snapshot
parente9920ef7749d11fc71cc32ca4ba055bcfeaab945commit | diff
parent3045b75c6d5fb5011fd9cc3a4146bb984a037ca4commit | diff
Auto merge of #81486 - ssomers:btree_separate_drop, r=Mark-Simulacrum

BTreeMap: disentangle Drop implementation from IntoIter

No longer require every `BTreeMap` to dig up its last leaf edge before dying. This speeds up the `clone_` benchmarks by 25% for normal keys and values (far less for huge values).

r? `@Mark-Simulacrum`
Empowering everyone to build reliable and efficient software.