https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106832
--- Comment #12 from Iain Buclaw <ibuclaw at gdcproject dot org> --- (In reply to Jakub Jelinek from comment #11) > Doesn't powerpc*-*-freebsd* use IEEE double long double? > grep LONG_DOUBLE_SIZE * > darwin.h:#define RS6000_DEFAULT_LONG_DOUBLE_SIZE 128 > linux64.h:#define RS6000_DEFAULT_LONG_DOUBLE_SIZE 128 > linux.h:#define RS6000_DEFAULT_LONG_DOUBLE_SIZE 128 > rs6000.cc:#ifndef RS6000_DEFAULT_LONG_DOUBLE_SIZE > rs6000.cc:#define RS6000_DEFAULT_LONG_DOUBLE_SIZE 64 Could be that instead, yeah. > And, sure, it would be ok to support only IEEE quad as D real for > powerpc*-linux*, but then D can be only supported with -mvsx. Furthermore, > dunno if D has its own math library or uses libm or both, if it doesn't have > everything on its own, then it would need at least glibc 2.27 or later (the > one with *f128 support) or perhaps 2.32 or which has __*ieee128 support. Its sort of both. The core D runtime has libm C bindings (core/stdc/math.d), whereas the standard runtime implements its own (pure) math library (std/math/*.d).
