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Speed up LexicalResolve::expansion() #65480

Merged
merged 2 commits into from
Oct 19, 2019
Merged

Speed up LexicalResolve::expansion() #65480

merged 2 commits into from
Oct 19, 2019

Commits on Oct 16, 2019

  1. Use a BitSet in LexicalResolver::iterate_until_fixed_point(). 

    This wins 3% on `unicode_normalization`.
    @nnethercote
    nnethercote committed Oct 16, 2019
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  2. Inline and remove iterate_until_fixed_point(). 

    The commit also removes the debug statement, because they annoyed me.
This change wins another 1% on `unicode_normalization`, at least partly
because it no longer needs to increment `iteration`.
    @nnethercote
    nnethercote committed Oct 16, 2019
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