Don't use potentially invalidated iterator
Don't use potentially invalidated iterator

If the lhs is evaluated before the rhs, FuncletI's operator-> can trigger the

  assert(isHandleInSync() && "invalid iterator access!");

at include/llvm/ADT/DenseMap.h:1061.  (Happens e.g. when compiled with GCC 6.)

Differential Revision: http://reviews.llvm.org/D18440


git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@265024 91177308-0d34-0410-b5e6-96231b3b80d8

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