efriedma added a comment. cbrt() can't underflow; that's not how cube roots work. If 0<x<1, cbrt(x) > x. See also the definition of rootn() in IEEE 754 (which specifies no exceptions for n=3).
For fma(), sure, I guess we could whitelist glibc and msvcrt, if you're worried there's some unknown implementation which sets ERANGE. https://reviews.llvm.org/D39641 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
