[PATCH] D20102: [ScheduleDAG] Make sure to process all def operands before any use operands

[Krzysztof Parzyszek via llvm-commits]

kparzysz added a comment.

I think this is a fairly rare case.  There has to be an explicit use and then an implicit def of the same register.  This came up for us in the Perennial C++ test suite.


Repository:
  rL LLVM

http://reviews.llvm.org/D20102