https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98607
--- Comment #6 from Guillaume Piolat <guillaume.piolat at gmail dot com> --- I provide intel intrinsics API for D, these intrinsics (like in C++) allows to change the rounding mode, and about 200 other functions that depend on the rounding mode can be called. I'm not the one in control of who calls what. I don't see a workaround for C++ headers at https://github.com/gcc-mirror/gcc/blob/16e2427f50c208dfe07d07f18009969502c25dc8/gcc/config/i386/xmmintrin.h#L872
