[PATCH] D26031: [TargetLowering] Fix undef vector element issue with true/false result handling

[Hal Finkel via llvm-commits]

hfinkel added a comment.

My inclination is to leave the code as is, and update the comment to match. If we have all undefs, then we return false (presumably, we have better ways to fold an all-undef operand), but a few undefs are fine.

On the other hand, do we generally produce better code if we don't handle undefs at all?


Repository:
  rL LLVM

https://reviews.llvm.org/D26031