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from 738de9c Merging r277093: -------------------------------------------- [...] new 3e3f160 Merging r278573 (and r277399, r278157, r278569):

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Summary of changes: include/llvm/ADT/GraphTraits.h | 15 +++-- include/llvm/ADT/SCCIterator.h | 37 ++++++------ include/llvm/ADT/STLExtras.h | 92 +++++++++++++++++++++++++++++ include/llvm/ADT/iterator.h | 19 +++--- include/llvm/Analysis/CallGraph.h | 2 + include/llvm/CodeGen/MachineBasicBlock.h | 4 ++ include/llvm/IR/CFG.h | 4 ++ lib/Analysis/BlockFrequencyInfoImpl.cpp | 1 + lib/Transforms/IPO/FunctionAttrs.cpp | 1 + lib/Transforms/Vectorize/LoopVectorize.cpp | 93 ++++++++++++++++++++++++++++-- test/Transforms/LoopVectorize/pr28541.ll | 71 +++++++++++++++++++++++ unittests/ADT/SCCIteratorTest.cpp | 1 + unittests/Support/IteratorTest.cpp | 87 ++++++++++++++++++++++++++++ 13 files changed, 387 insertions(+), 40 deletions(-) create mode 100644 test/Transforms/LoopVectorize/pr28541.ll