[PATCH] D26817: [APFloat] Implement PPCDoubleDouble add and subtract.

[Tim Shen via Phabricator via llvm-commits]

timshen updated this revision to Diff 81128.
timshen added a comment.

Removed unnecessary llvm_unreachable(), and add comments for addImpl details.


https://reviews.llvm.org/D26817

Files:
  llvm/include/llvm/ADT/APFloat.h
  llvm/lib/Support/APFloat.cpp
  llvm/unittests/ADT/APFloatTest.cpp

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