Synopsis

long long __smlald(int16x2 val1,
                   int16x2 val2,
                   long long val3);

Description

__smlald inserts a SMLALD instruction. __smlald returns the equivalent of

• res = val1[0] * val2[0] + val1[1] * val2[1] + val3
  
  where [0] is the lower 16 bits and [1] is the upper 16 bits.