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Fix drop tracking ICEs and re-enable generator drop tracking #93180

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wants to merge 7 commits into from
Closed

Fix drop tracking ICEs and re-enable generator drop tracking #93180

wants to merge 7 commits into from

Commits on Feb 1, 2022

  1. Reduce regression test

    @eholk
    eholk committed Feb 1, 2022
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  2. Allow uninhabited types in generator interiors 

    Drop tracking in the generator interior type checking pass would count
all values in unreachable code as dropped (e.g. code after a call to a
function with an uninhabited return type), which would lead to those
values not being included in the witness type. This resulted in the type
checker being more precise than the corresponding sanity check in the
MIR transform.

This patch changes the check in the MIR code to match the results of
typeck by skipping uninhabited types.
    @eholk
    eholk committed Feb 1, 2022
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  3. Support break and continue with block targets 

    Issue rust-lang#93197
    @eholk
    eholk committed Feb 1, 2022
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  4. Apply code review comments

    @eholk
    eholk committed Feb 1, 2022
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  5. Apply code review suggestion better

    @eholk
    eholk committed Feb 1, 2022
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  6. Re-enable drop tracking

    @eholk
    eholk committed Feb 1, 2022
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  7. Handle Continue correctly

    @eholk
    eholk committed Feb 1, 2022
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