[Tcwg-commits] [llvm] branch master updated (420c070 -> 8412590)

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from 420c070 Implemented color coding and Vertex labels in XRay Graph new 8412590 Do not verify dominator tree if it has no roots

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Summary of changes: lib/CodeGen/MachineDominators.cpp | 4 ++++ lib/IR/Dominators.cpp | 4 ++++ test/CodeGen/Generic/externally_available.ll | 2 +- 3 files changed, 9 insertions(+), 1 deletion(-)