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

[Tim Shen via Phabricator via llvm-commits]

timshen added a comment.

I believe that now it's mostly behaving in the same way as libgcc does, except for one bug that libgcc has (see https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78759), but I fixed it here.


https://reviews.llvm.org/D26817