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New mir-opt pass to simplify gotos with const values #77486

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New mir-opt pass to simplify gotos with const values #77486

wants to merge 12 commits into from

Commits on Oct 25, 2020

  1. New mir-opt pass to simplify gotos with const values 

    Fixes rust-lang#77355
    @simonvandel
    simonvandel committed Oct 25, 2020
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  2. Handle const eval failure

    @simonvandel
    simonvandel committed Oct 25, 2020
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  3. Use try block

    @simonvandel
    simonvandel committed Oct 25, 2020
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  4. Add fixme about a possible future relaxation

    @simonvandel
    simonvandel committed Oct 25, 2020
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  5. Introduce StatementKind::as_assign

    @simonvandel
    simonvandel committed Oct 25, 2020
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  6. Introduce TerminatorKind::as_switch

    @simonvandel
    simonvandel committed Oct 25, 2020
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  7. Introduce TerminatorKind::as_goto

    @simonvandel
    simonvandel committed Oct 25, 2020
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  8. Clearer destructuring

    @simonvandel
    simonvandel committed Oct 25, 2020
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  9. Add a more direct for not_equals optimization in InstCombine 

    The previous test's diff was changed by the const_goto pass such that the Ne(_1, false) pattern did not show anymore
    @simonvandel
    simonvandel committed Oct 25, 2020
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  10. Tidy fix

    @simonvandel
    simonvandel committed Oct 25, 2020
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  11. Ref instead of box

    @simonvandel
    simonvandel committed Oct 25, 2020
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  12. pattern match directly on constant

    @simonvandel
    simonvandel committed Oct 25, 2020
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