On 1 July 2016 at 18:04, Richard Henderson <r...@twiddle.net> wrote: > If __int128 is not supported, prefer a base type that is > returned in registers rather than memory.
So which host architectures does this improve? 128 bit integers are nothing to do with complex numbers, so we ought to have a strong justification for abusing the _Complex type. The ifdef suggests this only helps ppc and sparc, which to my mind is not a sufficient justification. If there's much benefit from doing this then it would be better for the compiler on those architectures to support int128 as a proper native type returned in registers. > +#if defined(__GNUC__) \ > + && (defined(__powerpc__) || defined(__sparc__)) \ > + && !defined(CONFIG_TCG_INTERPRETER) Why the CONFIG_TCG_INTERPRETER clause ? thanks -- PMM
