[PATCH] D50878: [X86] Teach combineTruncatedArithmetic to handle some cases of ISD::SUB

[Phabricator via Phabricator via llvm-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rL340212: [X86] Teach combineTruncatedArithmetic to handle some cases of ISD::SUB (authored by ctopper, committed by ).

Changed prior to commit:
  https://reviews.llvm.org/D50878?vs=161150&id=161560#toc

Repository:
  rL LLVM

https://reviews.llvm.org/D50878

Files:
  llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
  llvm/trunk/test/CodeGen/X86/vector-trunc-math.ll

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