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Fix overflow when performing drop check calculations in NLL #47920

Merged
merged 2 commits into from
Feb 5, 2018
Merged

Fix overflow when performing drop check calculations in NLL #47920

merged 2 commits into from
Feb 5, 2018

Commits on Feb 1, 2018

  1. Fix overflow when performing drop check calculations in NLL 

    Clearing out the infcx's region constraints after processing each type
ends up interacting badly with normalizing associated types. This commit
keeps all region constraints intact until the end of
TypeLivenessGenerator.add_drop_live_constraint, ensuring that normalized
types are able to re-use existing inference variables.

Fixes rust-lang#47589
    @Aaron1011
    Aaron1011 committed Feb 1, 2018
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Commits on Feb 2, 2018

  1. Remove commented-out code

    @Aaron1011
    Aaron1011 committed Feb 2, 2018
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