[PATCH] D58872: [InstCombine] Start canonicalizing to uadd.sat and usub.sat

[Nikita Popov via Phabricator via llvm-commits]

nikic created this revision.
nikic added reviewers: spatel, RKSimon.
Herald added subscribers: llvm-commits, jdoerfert.
Herald added a project: LLVM.

At this point our uadd.sat and usub.sat support should be better than expanded IR, so start canonicalizing to these intrinsics. I'm porting the already existing patterns, though we'll also want to convert the currently canonical patterns in addition to that.


Repository:
  rL LLVM

https://reviews.llvm.org/D58872

Files:
  lib/Transforms/InstCombine/InstCombineSelect.cpp
  test/Transforms/InstCombine/saturating-add-sub.ll
  test/Transforms/InstCombine/unsigned_saturated_sub.ll

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