The llvm.hexagon.M2.mpy.nac.lh.s0 intrinsic; known as __builtin_HEXAGON_M2_mpy_nac_lh_s0 in GCC.
See Implementation
The llvm.hexagon.M2.mpy.nac.lh.s0 intrinsic; known as __builtin_HEXAGON_M2_mpy_nac_lh_s0 in GCC.