[Tcwg-commits] [llvm] branch master updated (20c42ab3c6c -> 141f3969d78)

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from 20c42ab3c6c [InstCombine] Extend saturating idempotent atomicrmw transf [...] new 141f3969d78 [ValueTracking] Known bits support for unsigned saturating add/sub

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Summary of changes: lib/Analysis/ValueTracking.cpp | 31 ++++++++++++++ unittests/Analysis/ValueTrackingTest.cpp | 71 ++++++++++++++++++++++++++++++++ 2 files changed, 102 insertions(+)