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Fix variable debuginfo being optimized away at mir-opt-level=2 #103657

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Fix variable debuginfo being optimized away at mir-opt-level=2 #103657

wants to merge 3 commits into from

Commits on Oct 27, 2022

  1. Add test case

    @wesleywiser
    wesleywiser committed Oct 27, 2022
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  2. Fix variable debuginfo being optimized away at mir-opt-level=2 

    The `DeadStoreElmination` pass was removing the uses of these locals
because the are never used in the MIR body except for debuginfo. I've
updated the pass to consider locals referenced by debuginfo as always
alive unless a higher MIR opt level is requested by the user.
    @wesleywiser
    wesleywiser committed Oct 27, 2022
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Commits on Oct 28, 2022

  1. Try turning on ConstDebugInfo pass

    @wesleywiser
    wesleywiser committed Oct 28, 2022
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