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from 8d22d2f1d44 [MemorySSA] Update MemorySSA when removing debug.value calls. new 63cc4672d33 [PGO][CHR] Speed up following long, interlinked use-def chains. new 87d9ec2a402 [MemorySSA] Verify MSSAUpdater exists. new 9d3619238e7 [x86] add test for horizontal math bug (PR43225); NFC new 4e7689345d8 [MergedLoadStoreMotion] Sink stores to BB with more than 2 [...]

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Summary of changes: include/llvm/Transforms/Scalar.h | 2 +- .../llvm/Transforms/Scalar/MergedLoadStoreMotion.h | 18 ++- lib/Passes/PassBuilder.cpp | 20 +++ lib/Passes/PassRegistry.def | 6 +- .../Instrumentation/ControlHeightReduction.cpp | 19 ++- lib/Transforms/Scalar/MergedLoadStoreMotion.cpp | 167 ++++++++++++--------- lib/Transforms/Utils/BasicBlockUtils.cpp | 3 +- test/CodeGen/X86/haddsub-shuf-undef-operand.ll | 26 ++++ test/Transforms/InstMerge/st_sink_split_bb.ll | 94 ++++++++++++ test/Transforms/PGOProfile/chr.ll | 151 +++++++++++++++++++ 10 files changed, 428 insertions(+), 78 deletions(-) create mode 100644 test/CodeGen/X86/haddsub-shuf-undef-operand.ll create mode 100644 test/Transforms/InstMerge/st_sink_split_bb.ll