[PATCH] D56057: [X86] Individually simplify both operands of PMULDQ/PMULUDQ using the other entry point of SimplifyDemandedBits that allows the one use check of the root node to be suppressed.

[Craig Topper via Phabricator via llvm-commits]

craig.topper added a comment.

The really concerning thing is that this patch does the exact same thing that's done by simplifyI24 in AMDGPUISelLowering.cpp. I assume Simon like myself assumed that established infrastructure like that was doing the right thing and didn't question it too much.


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D56057/new/

https://reviews.llvm.org/D56057