[PATCH] D87145: [SelectionDAG] Remove an early-out from computeKnownBits for smin/smax

[Craig Topper via Phabricator via llvm-commits]

craig.topper added inline comments.


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Comment at: llvm/test/CodeGen/X86/avx512-trunc.ll:1020
 ; SKX-NEXT:    vzeroupper
 ; SKX-NEXT:    retq
   %x1 = icmp sgt <16 x i16> %i, <i16 0, i16 0, i16 0, i16 0, i16 0, i16 0, i16 0, i16 0, i16 0, i16 0, i16 0, i16 0, i16 0, i16 0, i16 0, i16 0>
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RKSimon wrote:
> Is this testing what it means to? I can't remember offhand what the test is for - @craig.topper any ideas?
Not sure either.  InstCombine simplifies it to a store of all ones.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D87145/new/

https://reviews.llvm.org/D87145