RalfJung added a comment.

> I think the CCIfSplit means it was larger than i64 to start.

What about the case where R9 <https://reviews.llvm.org/source/libcxxabi/> would 
take the *second* half of a split i128 (i.e., the value gets split across R8 
<https://reviews.llvm.org/source/libcxx/> and R9 
<https://reviews.llvm.org/source/libcxxabi/>)? Does that still work after this 
patch?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D158169/new/

https://reviews.llvm.org/D158169

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