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from dbdf58d17eb [AVR] Expand 16-bit rotations during the legalization stage new c313a177b45 [CodeGen] Generic Hardware Loop Support

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Summary of changes: include/llvm/Analysis/TargetTransformInfo.h | 39 ++ include/llvm/Analysis/TargetTransformInfoImpl.h | 7 + include/llvm/CodeGen/BasicTTIImpl.h | 7 + include/llvm/CodeGen/Passes.h | 3 + include/llvm/IR/Intrinsics.td | 21 + include/llvm/InitializePasses.h | 1 + include/llvm/LinkAllPasses.h | 1 + lib/Analysis/TargetTransformInfo.cpp | 6 + lib/CodeGen/CMakeLists.txt | 1 + lib/CodeGen/CodeGen.cpp | 1 + lib/CodeGen/HardwareLoops.cpp | 441 ++++++++++++++++++ lib/Target/PowerPC/PPCCTRLoops.cpp | 572 ------------------------ lib/Target/PowerPC/PPCISelLowering.cpp | 8 +- lib/Target/PowerPC/PPCInstr64Bit.td | 2 +- lib/Target/PowerPC/PPCInstrInfo.td | 2 +- lib/Target/PowerPC/PPCTargetMachine.cpp | 3 +- lib/Target/PowerPC/PPCTargetTransformInfo.cpp | 344 ++++++++++++++ lib/Target/PowerPC/PPCTargetTransformInfo.h | 5 + test/CodeGen/PowerPC/ctrloop-intrin.ll | 11 +- test/CodeGen/PowerPC/ppc-passname.ll | 12 - test/Transforms/HardwareLoops/scalar-while.ll | 144 ++++++ test/Transforms/HardwareLoops/unscevable.ll | 47 ++ tools/llc/llc.cpp | 1 + tools/opt/opt.cpp | 1 + 24 files changed, 1083 insertions(+), 597 deletions(-) create mode 100644 lib/CodeGen/HardwareLoops.cpp create mode 100644 test/Transforms/HardwareLoops/scalar-while.ll create mode 100644 test/Transforms/HardwareLoops/unscevable.ll