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

[Haicheng Wu via llvm-commits]

haicheng updated the summary for this revision.
haicheng added a subscriber: MatzeB.
haicheng updated this revision to Diff 62990.
haicheng added a comment.

Now that r274686 is committed, I can simply enable zczeroing feature in Kryo for both integer and float registers.  I have to explicitly set the isAsCheapAsAMove feature because Kryo has customized CheapAsMoveHandling.


Repository:
  rL LLVM

http://reviews.llvm.org/D19985

Files:
  lib/Target/AArch64/AArch64.td
  lib/Target/AArch64/AArch64InstrInfo.cpp
  test/CodeGen/AArch64/kryo_zeroing.ll

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