On Wed, 11 Jan 2017, Maciej W. Rozycki wrote: > > > In any case, the soft-fp change is relevant in the hard-float case as > > > well, to make software TFmode behave consistently with hardware SFmode > > > and DFmode regarding NaN payload preservation. > > Is mixing TFmode, DFmode and SFmode operations with the two latters > handled in hardware and the former deferred to soft-fp a supported > configuration? Do we have any MIPS ABI which provides for using all these
Yes. > data types? AFAIK all MIPS/Linux ABIs use DFmode for `long double' and n32 and n64 use TFmode (unconditionally; unlike on some architectures, there is no -mlong-double-64 option). From GCC 4.9 onwards this uses soft-fp rather than fp-bit, with integration with hardware exceptions and rounding modes. -- Joseph S. Myers jos...@codesourcery.com
