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from fe05e831532 [X86] combineX86ShufflesRecursively - pull out isTargetShuf [...] new 7c4ed1ed661 [PGO][PGSO] SizeOpts changes. new 3b9c9d4ec2e gn build: Merge r375254

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Summary of changes: include/llvm/CodeGen/MachineBlockFrequencyInfo.h | 3 + include/llvm/CodeGen/MachineDominators.h | 5 + include/llvm/CodeGen/MachineLoopInfo.h | 6 + include/llvm/CodeGen/MachineSizeOpts.h | 37 ++++ include/llvm/Transforms/Utils/SizeOpts.h | 55 ++++- lib/CodeGen/CMakeLists.txt | 1 + lib/CodeGen/MachineBlockFrequencyInfo.cpp | 7 + lib/CodeGen/MachineDominators.cpp | 6 +- lib/CodeGen/MachineLoopInfo.cpp | 8 +- lib/CodeGen/MachineSizeOpts.cpp | 120 +++++++++++ lib/Transforms/Utils/SizeOpts.cpp | 68 ++++-- unittests/CodeGen/CMakeLists.txt | 1 + unittests/CodeGen/MachineSizeOptsTest.cpp | 234 +++++++++++++++++++++ unittests/Transforms/Utils/CMakeLists.txt | 1 + unittests/Transforms/Utils/SizeOptsTest.cpp | 129 ++++++++++++ utils/gn/secondary/llvm/lib/CodeGen/BUILD.gn | 1 + utils/gn/secondary/llvm/unittests/CodeGen/BUILD.gn | 1 + .../llvm/unittests/Transforms/Utils/BUILD.gn | 1 + 18 files changed, 664 insertions(+), 20 deletions(-) create mode 100644 include/llvm/CodeGen/MachineSizeOpts.h create mode 100644 lib/CodeGen/MachineSizeOpts.cpp create mode 100644 unittests/CodeGen/MachineSizeOptsTest.cpp create mode 100644 unittests/Transforms/Utils/SizeOptsTest.cpp