search for: n1011

...st apply the intrinsic forms to the instructions. - C99/C++ say nothing about SNaN’s, and there is some push to remove SNaN’s from the IEEE 754 standard. See, e.g. this page, which was one of the first hits I found online, I’m sure there are others: http://www.open-std.org/jtc1/sc22/wg14/www/docs/n1011.htm <http://www.open-std.org/jtc1/sc22/wg14/www/docs/n1011.htm>. I’m not familiar with the state of the art in Java or other languages. - The fact that C99 and C++ are undefined on SNaN’s by default, and default to ignoring rounding modes, mean that it is fine for clang to produce fadd/fmul...

So you don’t think sNaNs can just be treated as if they were qNaNs? I understand why we would want to ignore the signaling part of things, but the rules for operating on NaNs are pretty clear and reasonable to implement. The signaling aspect can, I think, be safely ignored when we are in the mode of assuming the default FP environment. As for the distinction between IEEE and LLVM IR, I would