[PATCH] D50952: [X86] Add support for matching paddus patterns where one of the vectors is a constant.

[Craig Topper via Phabricator via llvm-commits]

craig.topper created this revision.
craig.topper added reviewers: RKSimon, spatel.

InstCombine mucks these up a bit. So we need to do some additional pattern matching to fix it. There are a still a few special cases not handled, but this covers the general case.


Repository:
  rL LLVM

https://reviews.llvm.org/D50952

Files:
  lib/Target/X86/X86ISelLowering.cpp
  test/CodeGen/X86/paddus.ll

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