[PATCH] D61263: [X86][SSE] Fold scalar horizontal add/sub for non-0/1 element extractions

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon updated this revision to Diff 197538.
RKSimon added a comment.

rebase


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D61263/new/

https://reviews.llvm.org/D61263

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

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