[PATCH] D41908: [X86][MMX] Add support for MMX zero vector creation

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon updated this revision to Diff 129759.
RKSimon added a comment.

Updated with zero fold test recommended by @craig.topper


Repository:
  rL LLVM

https://reviews.llvm.org/D41908

Files:
  lib/Target/X86/X86ISelLowering.cpp
  lib/Target/X86/X86InstrInfo.cpp
  lib/Target/X86/X86InstrMMX.td
  test/CodeGen/X86/mmx-fold-zero.ll
  test/CodeGen/X86/vector-shuffle-mmx.ll

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