There's no context here, why would it matter what the variables are? Do you really need 'a' and 'b' to be named 'add_operand_1' and 'add_operand_2' to understan

There's no context here, why would it matter what the variables are? Do you really need 'a' and 'b' to be named 'add_operand_1' and 'add_operand_2' to understand what they are? Same with 'acc', is it not obvious what it is from the context? Unnecessarily long names can be less readable too. If a variable's lifetime is only a few lines long, and the meaning is obvious from the context, a single letter name might be best. As for the example: if you think a dot product is useless, then maybe SIMD really is not useful for you, and you can forget about it if you want.