[PATCH] D126525: [SSAUpdaterImpl] Do not generate phi node with all the same incoming values

[Sameer Sahasrabuddhe via Phabricator via llvm-commits]

sameerds accepted this revision.
sameerds added a comment.
This revision is now accepted and ready to land.

The code looks okay to me, but still need @arsenm to check the effect on the AMDGPU lit test. There seem to be superficial changes to the control flow, but Matt might be able to say whether the test still serves its original purpose after this change.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D126525/new/

https://reviews.llvm.org/D126525