[PATCH] D44997: [InstCombine] Fold compare of int constant against an integer vector splat

[Daniel Neilson via Phabricator via llvm-commits]

dneilson added inline comments.


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Comment at: test/Transforms/InstCombine/icmp-bc-vecsplat.ll:114
+; CHECK-NEXT:    [[COND:%.*]] = icmp ult i32 [[CAST]], 1212696647
+; CHECK-NEXT:    ret i1 [[COND]]
+;
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efriedma wrote:
> This can be optimized: https://rise4fun.com/Alive/wVf .  Not sure if that's useful in practice.
Interesting. Not useful for the direct application that I have in mind for this peephole optimization (I really only need eq/ne), but good to keep in mind for the future. Thanks for pointing it out!


Repository:
  rL LLVM

https://reviews.llvm.org/D44997