[Bug middle-end/57974] std::pow(std::complex(0),1) returns (-nan,-nan)

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57974

Paolo Carlini <paolo.carlini at oracle dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|c++                         |middle-end

--- Comment #1 from Paolo Carlini <paolo.carlini at oracle dot com> ---
IMHO the most interesting bit is that it only happens for long double. Anyway,
this is neither C++ library nor front-end, either middle-end or libc, likely
the former because on my machine neither clang++ nor icc has the issue while
the underlying libc is the same glibc. Anyway, reduced:

  __builtin_expl (- 1 / 0.0)