http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59159
--- Comment #5 from joseph at codesourcery dot com <joseph at codesourcery dot com> --- On Mon, 18 Nov 2013, rguenth at gcc dot gnu.org wrote: > I wonder whether a very early pass splitting functions at FENV clobber > points and preventing re-inlining would be a better solution in the end That sounds like a nasty hack, not a sensible solution for properly supporting exceptions and rounding modes. For interval arithmetic you want code changing rounding modes (or using the FENV_ROUND pragma proposed in DTS 18661-1) to be handled reasonably efficiently rather than resulting in a split into separate functions (really, a function with FENV_ACCESS enabled should be inlinable into one without, though I could certainly imagine an initial implementation controlling flags only on a per-function basis and preventing inlining).
