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from 9bde5fb8f8e MIRParser: Avoid reading uninitialized memory on generic vregs new f5f61851ee3 [PM/Unswitch] Teach SimpleLoopUnswitch to do non-trivial un [...]
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Summary of changes: include/llvm/Analysis/LoopInfo.h | 36 +- include/llvm/Analysis/LoopInfoImpl.h | 2 +- include/llvm/Transforms/Scalar/LoopPassManager.h | 13 + .../llvm/Transforms/Scalar/SimpleLoopUnswitch.h | 6 +- lib/Analysis/LoopPass.cpp | 3 +- lib/Transforms/Scalar/SimpleLoopUnswitch.cpp | 1515 ++++++++++++- .../2006-06-27-DeadSwitchCase.ll | 44 +- .../SimpleLoopUnswitch/nontrivial-unswitch-cost.ll | 501 +++++ .../SimpleLoopUnswitch/nontrivial-unswitch.ll | 2352 ++++++++++++++++++++ 9 files changed, 4372 insertions(+), 100 deletions(-) create mode 100644 test/Transforms/SimpleLoopUnswitch/nontrivial-unswitch-cost.ll create mode 100644 test/Transforms/SimpleLoopUnswitch/nontrivial-unswitch.ll