[PATCH] D17475: MachineCopyPropagation: Catch copies of the form A<-B; A<-B

Jun Bum Lim via llvm-commits llvm-commits at lists.llvm.org
Thu Feb 25 11:54:18 PST 2016

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junbuml added a comment.

Adding isConstantPhysReg() would be good in this pass. As far as I check, however, isConstantPhysReg() returns false for WZR and XZR in AArch64, which I think we need to fix (Bug 25457).


Repository:
  rL LLVM

http://reviews.llvm.org/D17475

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