rust/library
bors 1d216fef3e Auto merge of #77259 - dgbo:master, r=kennytm
update stdarch submodule

This commit update the src/stdarch submodule, we primarily want to include [https://github.com/rust-lang/stdarch/pull/918](url) which provides prefetch hints for aarch64. This PR could deliver ~20% performance gain on our aarch64 server in Filecoin. Wish this could be used as soon as possible.

Thanks.
2020-09-27 15:14:55 +00:00
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