[PATCH] D34005: [CGP / PowerPC] avoid multi-block overhead for simple memcmp expansion

[Sanjay Patel via Phabricator via llvm-commits]

spatel updated this revision to Diff 101903.
spatel added a comment.

Patch updated - no code changes, but:

1. Added comment about overlapped responsibility with the DAG for lowering the single-block case.
2. Rebased to r304974. The PPC test now avoids cmp/isel altogether. I think this was either https://reviews.llvm.org/D33718 / https://reviews.llvm.org/D33720. Thanks, @nemanjai!


https://reviews.llvm.org/D34005

Files:
  lib/CodeGen/CodeGenPrepare.cpp
  test/CodeGen/PowerPC/memCmpUsedInZeroEqualityComparison.ll

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