[PATCH] D50665: [LV][LAA] Vectorize loop invariant values stored into loop invariant address

[Anna Thomas via Phabricator via llvm-commits]

anna updated this revision to Diff 160882.
anna marked 2 inline comments as done.
anna added a comment.

added cost model changes for unpredicated invariant stores. The predicated invariant stores will
generate extra stores here and the cost model also (already) considers the cost of predicated stores.
Since the cost model correctly reflects the cost of the (badly) generated predicated stores,
I've added couple of tests to show that invariant predicated stores are handled correctly, but TODOs
for follow on patch for better code gen.


Repository:
  rL LLVM

https://reviews.llvm.org/D50665

Files:
  include/llvm/Analysis/LoopAccessAnalysis.h
  lib/Analysis/LoopAccessAnalysis.cpp
  lib/Transforms/Vectorize/LoopVectorizationLegality.cpp
  lib/Transforms/Vectorize/LoopVectorize.cpp
  test/Transforms/LoopVectorize/invariant-store-vectorization.ll
  test/Transforms/LoopVectorize/pr31190.ll

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