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from 2ba7e80886e [TargetOption] Add option to ebanble the debug entry values new 5bd39d6f6ed [HardwareLoops] NFC - move loop with irreducible control fl [...] new cc3c3219a71 [LoopUnroll] Add support for loops with exiting headers and [...]

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Summary of changes: include/llvm/Analysis/TargetTransformInfo.h | 3 +- lib/Analysis/TargetTransformInfo.cpp | 10 +- lib/CodeGen/HardwareLoops.cpp | 10 +- lib/Transforms/Utils/LoopUnroll.cpp | 230 ++++++++++++----- .../ScalarEvolution/scev-expander-reuse-unroll.ll | 6 +- .../partially-unroll-unconditional-latch.ll | 65 +++++ test/Transforms/LoopUnroll/runtime-li.ll | 7 +- test/Transforms/LoopUnroll/unloop.ll | 2 +- .../LoopUnroll/unroll-unconditional-latch.ll | 277 +++++++++++++++++++++ 9 files changed, 535 insertions(+), 75 deletions(-) create mode 100644 test/Transforms/LoopUnroll/partially-unroll-unconditional-latch.ll create mode 100644 test/Transforms/LoopUnroll/unroll-unconditional-latch.ll