In http://reviews.llvm.org/D8468#143819, @tstellarAMD wrote:
> In http://reviews.llvm.org/D8468#143776, @hfinkel wrote: > > > To play devil's advocate: I don't understand what you're trying to fix > > here. So the intrinsic has undefined behavior if x < -0.0; that's the > > definition of our intrinsic. > > > The check is there to avoid the undefined behavior. My understanding is that > __builtin_sqrtf is supposed to return NaN for x < -0.0, so we need to handle > that case specially if we emit the intrinsic. Right, I just want to understand what "supposed to" means? (what GCC does?) > > > > Regardless, you don't need to insert the extra code if we're in NoNaNs mode. > REPOSITORY rL LLVM http://reviews.llvm.org/D8468 EMAIL PREFERENCES http://reviews.llvm.org/settings/panel/emailpreferences/ _______________________________________________ cfe-commits mailing list [email protected] http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits
