[PATCH] D19985: [Kryo] Use immediate #0 to zero a register

[Haicheng Wu via llvm-commits]

haicheng added a comment.

Thank you, Matthias.

Another thing about Cyclone's ZCZeroing feature is AArch64InstrInfo::isGPRZero() which I believe is only used by Cyclone.  This function returns true for COPY WZR but not COPY XZR.  I don't know if it is intentional or a mistake.


Repository:
  rL LLVM

http://reviews.llvm.org/D19985