[PATCH] D57841: [x86] narrow 256-bit horizontal ops via demanded elements

[Sanjay Patel via Phabricator via llvm-commits]

spatel updated this revision to Diff 185803.
spatel marked an inline comment as done.
spatel added a comment.

Patch updated:
Use {insert/extract}128BitVector to reduce code.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D57841/new/

https://reviews.llvm.org/D57841

Files:
  lib/Target/X86/X86ISelLowering.cpp
  test/CodeGen/X86/haddsub.ll
  test/CodeGen/X86/phaddsub-extract.ll

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