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from 364a6f6 Add missing include from r272607 to fix modules build, and re [...] new cf989e5 [PM] Port MemCpyOpt to the new PM. new cb9fb9c Fix for (benign) uninitialized read caught by UBSan bot.

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Summary of changes: include/llvm/InitializePasses.h | 2 +- include/llvm/Transforms/Scalar/JumpThreading.h | 2 +- include/llvm/Transforms/Scalar/MemCpyOptimizer.h | 68 ++++++++++ lib/LTO/LTOCodeGenerator.cpp | 2 +- lib/Passes/PassBuilder.cpp | 1 + lib/Passes/PassRegistry.def | 1 + lib/Transforms/Scalar/MemCpyOptimizer.cpp | 152 ++++++++++++++--------- lib/Transforms/Scalar/Scalar.cpp | 2 +- test/Transforms/MemCpyOpt/smaller.ll | 1 + 9 files changed, 171 insertions(+), 60 deletions(-) create mode 100644 include/llvm/Transforms/Scalar/MemCpyOptimizer.h