[PATCH] D49828: [libc++] Add hack to allow ubsan to work w/o compiler-rt (__muloti4 is undefined)

[Eric Christopher via Phabricator via cfe-commits]

echristo accepted this revision.
echristo added a comment.
This revision is now accepted and ready to land.

Bit of a hack, but I'm ok with it.


Repository:
  rCXX libc++

https://reviews.llvm.org/D49828