[PATCH] D37534: [X86] Unsigned saturation subtraction canonicalization [the backend part]

[Yulia Koval via Phabricator via llvm-commits]

yulia_koval updated this revision to Diff 116797.

https://reviews.llvm.org/D37534

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

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