Do C++11 compilers turn local variables into rvalues when they can during code optimization?

Question

Sometimes it\'s wise to split complicated or long expressions into multiple steps, for example (the 2nd version isn\'t more clear, but it\'s just an example):

Answer 1

The compiler cannot break the "as-if" rule in this case. But you can use std::move to achieve the desired effect:

object3 a(x);
object2 b(std::move(a));
object1 c(std::move(b));
return c;