tree dfa9a84095d6329f261b5b2e9880d09aca15c616
parent 509177d13651b02c345b52f71dea76d78a339c76
author John Kessenich <cepheus@frii.com> 1485487871 -0700
committer John Kessenich <cepheus@frii.com> 1486598593 -0700

SPV: Emit OpSelect when a selection node is simple enough.

Also, ensures it has a type, no disallowed side effects,
or performance trade offs.