The llvm.hexagon.M2.mpy.nac.hh.s1 intrinsic; known as __builtin_HEXAGON_M2_mpy_nac_hh_s1 in GCC.
See Implementation
The llvm.hexagon.M2.mpy.nac.hh.s1 intrinsic; known as __builtin_HEXAGON_M2_mpy_nac_hh_s1 in GCC.