volatile: how will it work here?

[Bill Smith]

What code will this program generate?:

volatile int avar;
main()
{
	avar;
}

As I understand it, the code should be something like:
	LD	R0,avar
	RET

How many compilers optimize this program because of its "lack of 
side-effects?"

Bill Smith	pur-ee!uiucdcs!wsmith	wsmith at cs.uiuc.edu