[PATCH] D112549: Adding patch and unittest to generalize ignorable induction casts in the LoopVectorizationLegality analysis.

[Avery Laird via Phabricator via llvm-commits]

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This patch assumes that casts of the induction phi, from the same type, can be treated as the induction variable for the purposes of the legality analysis. This helps to make the cost model more accurate in certain cases, particularily with getMemInstScalarizationCost.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D112549

Files:
  llvm/lib/Transforms/Vectorize/LoopVectorizationLegality.cpp
  llvm/unittests/Transforms/Vectorize/CMakeLists.txt
  llvm/unittests/Transforms/Vectorize/LoopVectorizationLegalityTest.cpp

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