# TVM Monthly - August 2019
https://discuss.tvm.ai/t/tvm-monthly-august-2019
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@jroesch @wweic wdythink?
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Pattern matching is hard. currently, aot, vm, interpreter all has to implement
pattern matching, and it is a huge source of complexity - the most complex code
in aot is probably the pattern matcher.
there should be a pass to desugar pattern matching into if/else, however, there
is no way to bre