efriedma added a comment. `__extendxftf2` and `__trunctfxf2` are for conversions between x86 long double and `__float128`; you'll need to write implementations yourself. (That should be a separate patch.)
> Thanks Eli. I also found out that GCC 4.9 does not seem to have these defined > even though it supports `__float128`. gcc 5 has the define; that's good enough. Missing changes to run the unittests (test/builtins/Unit/) for the new functions. Unfortunately, it looks like that will be a large patch because they use "long double" and "__LDBL_MANT_DIG__" explicitly all over the place. ================ Comment at: lib/builtins/fp_lib.h:107 +// __LDBL_MANT_DIG__ is set to 64 for x86_64. +#if __LDBL_MANT_DIG__ == 113 || defined(__x86_64__) #define CRT_LDBL_128BIT ---------------- Instead of checking for `__x86_64__`, this should probably also check for the FLOAT128 defines. Repository: rCRT Compiler Runtime https://reviews.llvm.org/D53608 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
