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Optimize switch sources representation and usage #96838

Merged
merged 2 commits into from
May 10, 2022
Merged

Optimize switch sources representation and usage #96838

merged 2 commits into from
May 10, 2022

Commits on May 8, 2022

  1. Avoid constructing switch sources unless necessary 

    Switch sources are used by backward analysis with a custom switch int
edge effects, but are otherwise unnecessarily computed.

Delay the computation until we know that switch sources are indeed
required and avoid the computation otherwise.
    @tmiasko
    tmiasko committed May 8, 2022
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  2. Use sparse representation of switch sources 

    to avoid quadratic space overhead
    @tmiasko
    tmiasko committed May 8, 2022
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