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from 11ed8ed [SCEV] Don't always add no-wrap flags to post-inc add recs new 09cfc1e [SCEV] See through op.with.overflow intrinsics (re-apply) new 59287c3 [IndVars] Eliminate op.with.overflow when possible (re-apply) new 8a2a6b2 [SCEV] Comment and whitesapce changes in header new 9a56c05 [SCEV] Remove unused function; NFC new e2c1e5e [SCEV] Rename functions to LLVM style; NFC new ab146e0 [SCEV] Consolidate comments; NFC new 1c85d76 [SCEV] Remove \brief from comments; NFC new 50d2d21 [PM] Reassociate: cache analyses more aggressively.

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Summary of changes: include/llvm/Analysis/ScalarEvolution.h | 195 +++++----- include/llvm/Analysis/ScalarEvolutionExpressions.h | 150 +++----- include/llvm/Analysis/ValueTracking.h | 6 + lib/Analysis/ScalarEvolution.cpp | 398 ++++++++------------- lib/Analysis/ValueTracking.cpp | 61 ++++ lib/Transforms/Scalar/Reassociate.cpp | 9 +- lib/Transforms/Utils/SimplifyIndVar.cpp | 107 ++++++ .../ScalarEvolution/overflow-intrinsics.ll | 309 ++++++++++++++++ .../IndVarSimplify/overflow-intrinsics.ll | 137 +++++++ 9 files changed, 943 insertions(+), 429 deletions(-) create mode 100644 test/Analysis/ScalarEvolution/overflow-intrinsics.ll create mode 100644 test/Transforms/IndVarSimplify/overflow-intrinsics.ll