On Fri, 9 May 2014, H.J. Lu wrote: > There are 4 unused short int fields in fenv_t. Can we use 2 of them > for mxcsr instead of re-using __eip? You could, but I don't think it's worth the extra complexity. __eip is already reused for this purpose in the fenv_private code. -- Joseph S. Myers joseph@codesourcery.com