[PATCH] D109954: [InstCombine] powi(x, y) * powi(x, z) -> powi(x, y + z)

[Dávid Bolvanský via Phabricator via llvm-commits]

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We already have pow(x, y) * pow(x, z) -> pow(x, y + z) transformation, but we are missing same transformation for powi (power is integer).

Requires reassoc.


https://reviews.llvm.org/D109954

Files:
  llvm/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp
  llvm/test/Transforms/InstCombine/powi.ll

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