Stefan Pintilie 781674a1db [Power9] Add __float128 builtins for Round To Odd
GCC has builtins for these round to odd instructions:

__float128 __builtin_sqrtf128_round_to_odd (__float128)
__float128 __builtin_{add,sub,mul,div}f128_round_to_odd (__float128, __float128)
__float128 __builtin_fmaf128_round_to_odd (__float128, __float128, __float128)

Differential Revision: https://reviews.llvm.org/D47550

llvm-svn: 336578
2018-07-09 18:50:06 +00:00
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