> Note that you could probably just reload the tmp1_var value rather than > needing to store the fsr value again to clear exceptions from it, unless > there's an architecture-specific reason the tmp1_var value might no longer > be the right value to load to clear exceptions. (This is what x86 does > for SSE state, loading the same value for exceptions-cleared SSE state > every iteration of the loop.)
That depends upon the context I'd think: the FSR contains the FP condition code so reloading tmp1_var will overwrite it with the old value (and SPARC is not a cc0 target). Would that be safe? In the meantime, it occurred to me that I very likely don't need to mask the value of tmp3_var before calling __atomic_feraiseexcept on it. glibc does it but this looks unnecessary even there. -- Eric Botcazou
