Richard Henderson <richard.hender...@linaro.org> writes: > On 05/03/2018 11:17 AM, Peter Maydell wrote: >> (target/i386 notably does not do this, we should check how >> SSE and x87 handle NaNs in fp conversions first.) > > Hardware does silence NaNs. I tested that earlier: > > https://lists.gnu.org/archive/html/qemu-devel/2018-04/msg03114.html
Does that include SSE? I know the hardware will silence NaN's if the value is ever pushed into an x87 register (as GCC will do when spilling/filling float). > > > r~ -- Alex Bennée
