tree 541daceceb71316ee32acd6e87fba0eafbee0545
parent 4563d9093426fd8c5b461a8df338c500ae708d4c
author alan-baker <alanbaker@google.com> 1666980800 -0400
committer GitHub <noreply@github.com> 1666980800 -0400
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Prevent eliminating case constructs in block merging (#4976)

Fixes #4918

* Prevent block merging from producing an invalid case construct by
  merging a switch target/default with another construct's merge or
  continue block
* This is to satisfy the structural dominance requirement between the
  switch header and the case constructs