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JIT: handle case where we are cloning adjacent sibling loops #70874

Merged
merged 1 commit into from
Jun 21, 2022
Merged

JIT: handle case where we are cloning adjacent sibling loops #70874

merged 1 commit into from
Jun 21, 2022

Commits on Jun 18, 2022

  1. JIT: handle case where we are cloning adjacent sibling loops 

    We can sometimes see adjacent sibling loops (where L1.bottom == L2.head)
and if so, cloning L1 will repurpose L1.bottom and so leave L2 in
an inconsistent state.

Detect this case during optCanonicalizeLoop, and add an intermediary
block to serve as L2's head.

Fixes dotnet#70569.
    @AndyAyersMS
    AndyAyersMS committed Jun 18, 2022
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