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uni import: splitTerminators crash #33

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matsc-at-sics-se opened this issue Jun 5, 2018 · 0 comments

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bug

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matsc-at-sics-se commented Jun 5, 2018

Reproducer:
wam_body.mir.zip

$ uni import -f wam_body wam_body.mir -o wam_body.uni --target=X86 --explicitcallreg --goal=speed --copyremat --lint
uni: Maybe.fromJust: Nothing

Stems from this piece of code in SplitTerminators.hs:

adjustPhiOperand current b2bs succs mop @ MachineBlockRef {mbrId = parent} =
  let candidateParents = b2bs M.! parent
      realParent = find (\p -> current `elem` (succs M.! p)) candidateParents
  in mop {mbrId = fromJust realParent}

So in one case, no realParent was found.

The text was updated successfully, but these errors were encountered:

matsc-at-sics-se added the bug label

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