[PATCH] D33433: [SCEV] Select between two equal values

[Max Kazantsev via Phabricator via llvm-commits]

mkazantsev created this revision.
Herald added a subscriber: mzolotukhin.

SCEV of expressions like 'select %cond, %X, %X' should be evaluated as SCEV of '%X'.


https://reviews.llvm.org/D33433

Files:
  lib/Analysis/ScalarEvolution.cpp
  test/Analysis/IVUsers/quadradic-exit-value.ll
  test/Analysis/ScalarEvolution/select.ll
  test/Transforms/LoopStrengthReduce/lsr-expand-quadratic.ll

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