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Optimize RefCell read borrowing #62748

Merged
merged 3 commits into from
Jul 27, 2019
Merged

Optimize RefCell read borrowing #62748

merged 3 commits into from
Jul 27, 2019
+15 −5

Commits on Jul 17, 2019

  1. Optimize RefCell read borrowing 

    Instead of doing two comparisons we can do only one with a bit of
cleverness.

LLVM currently can't do this optimization itself on x86-64.
    @luca-barbieri
    luca-barbieri committed Jul 17, 2019
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Commits on Jul 21, 2019

  1. Expand comment on BorrowRef::new

    @luca-barbieri
    luca-barbieri committed Jul 21, 2019
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  2. fix comment

    @luca-barbieri
    luca-barbieri committed Jul 21, 2019
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