[PATCH] D12480: [LV] Delay predication of stores until near the end of vector code generation

[James Molloy via llvm-commits]

jmolloy updated this revision to Diff 33907.
jmolloy added a comment.

Hi Michael,

[reuploaded with full context]

Yes I did, although it was just a test change - there were no code changes. The major test change is the test lines starting "CHECK-VEC-IC:" - these check that when adding -instcombine (which we do in the normal pipeline), the extracts are moved into the predicate blocks.

And this does in fact happen. There are a couple of extracts outside the blocks, but they're used outside too (for example, [[v3]] is used in the branch).


Repository:
  rL LLVM

http://reviews.llvm.org/D12480

Files:
  lib/Transforms/Vectorize/LoopVectorize.cpp
  test/Transforms/LoopVectorize/if-pred-stores.ll

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