[PATCH] D58115: [Codegen] Remove dead flags on Physical Defs in machine cse

[Dave Green via Phabricator via llvm-commits]

dmgreen created this revision.
dmgreen added reviewers: efriedma, MatzeB.

We may leave behind incorrect dead flags on instructions that are CSE'd. Make
sure we remove the dead flags on these instructions to prevent other incorrect
code motion.


https://reviews.llvm.org/D58115

Files:
  lib/CodeGen/MachineCSE.cpp
  test/CodeGen/Thumb/machine-cse-deadreg.mir

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