[PATCH] D34025: [SCEV] Teach SCEVExpander to expand BinPow

[Max Kazantsev via Phabricator via llvm-commits]

mkazantsev updated this revision to Diff 102303.
mkazantsev edited the summary of this revision.
mkazantsev added a comment.

Re-justified this as being an improvement, added a test where a linear calculation is replaced with a logarithmic one. I will make a separate patch to avoid creation of SCEVs with unreasonably huge numbers of operands.


https://reviews.llvm.org/D34025

Files:
  lib/Analysis/ScalarEvolutionExpander.cpp
  test/Transforms/LoopStrengthReduce/X86/bin_power.ll

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