[PATCH] D56636: [CodeGen][X86] Expand vector USUBSAT to UMAX+SUB

[Nikita Popov via Phabricator via llvm-commits]

nikic updated this revision to Diff 181480.
nikic marked an inline comment as done.
nikic added a comment.

Use LegalOrCustom. Use UMAX+SUB pattern for scalar as well. Remove no longer necessary X86 specific changes.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D56636/new/

https://reviews.llvm.org/D56636

Files:
  lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp
  lib/CodeGen/SelectionDAG/TargetLowering.cpp
  lib/Target/X86/X86TargetTransformInfo.cpp
  test/Analysis/CostModel/X86/arith-usat.ll
  test/CodeGen/X86/usub_sat.ll
  test/CodeGen/X86/usub_sat_vec.ll

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