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compiler: Guard cond_mapper lookup in halo hoisting (fix nested HaloSpot KeyError) #2944

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compiler: Guard cond_mapper lookup in halo hoisting (fix nested HaloSpot KeyError) #2944

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2 changes: 1 addition & 1 deletion devito/passes/iet/mpi.py
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Original file line number Diff line number Diff line change
Expand Up @@ -88,7 +88,7 @@ def _hoist_redundant_from_conditionals(iet):
scope = Scope(e.expr for e in FindNodes(Expression).visit(it))

for hs0 in halo_spots:
conditions = cond_mapper[hs0]
conditions = cond_mapper.get(hs0)
if not conditions:
continue
condition = conditions[-1] # Take the innermost Conditional
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