https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66382
--- Comment #2 from Steven Munroe <munroesj at us dot ibm.com> --- What is the issue? You want to configure __float128 without also configuring altivec/VMX/VSX? The PowerPC 64-bit ABI is defined to pass __float128 values in 128-bit vector registers and return _float128 values in VR2. How parameters are passed is independent of the computation.
