The llvm.hexagon.M2.mpy.sat.rnd.hl.s1 intrinsic; known as __builtin_HEXAGON_M2_mpy_sat_rnd_hl_s1 in GCC.
See Implementation
The llvm.hexagon.M2.mpy.sat.rnd.hl.s1 intrinsic; known as __builtin_HEXAGON_M2_mpy_sat_rnd_hl_s1 in GCC.