Thread: About code size

Suppose this two pieces of code:

Code:

x = 1;
b = 2;
x += b + z;
if (h) 
	x--;
else
	x++;

and:

Code:

if (h) {
	x = 1;
	b = 2;
	x += b + z;
	x --;
} else {
	x = 1;
	b = 2;
	x += b + z;
	x ++;
}

In runtime, both executes the same number of instruction, but example 2 is bigger in size, it has 11 lines of code, first one only have 7.

So althought runtime instruction are the same, is code 1 faster because the machine need to copy less execute-instruction each time? (I suppose that a so little example would unnoticiable, but a function with hundred of lines would be different)

(also I suppose a good compiler would optimize the code if correct optimization options are provided).