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from dc9c737 Use range algorithms instead of unpacking begin/end new 417fcec [MSSA] Use is_contained new f11cae6 Extend trip count instead of truncating IV in LFTR, when legal

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Summary of changes: lib/Transforms/Scalar/IndVarSimplify.cpp | 27 ++++ lib/Transforms/Utils/MemorySSA.cpp | 2 +- test/Transforms/IndVarSimplify/elim-extend.ll | 2 + .../Transforms/IndVarSimplify/iv-widen-elim-ext.ll | 10 +- .../IndVarSimplify/lftr-wide-trip-count.ll | 158 +++++++++++++++++++++ test/Transforms/IndVarSimplify/ult-sub-to-eq.ll | 5 +- 6 files changed, 196 insertions(+), 8 deletions(-) create mode 100644 test/Transforms/IndVarSimplify/lftr-wide-trip-count.ll