This caused the following code snippet to be miscompiled

	var f int
	x := g(&f)
	f = 10

Moving the store of 10 above the function call.

Change-Id: Ic6951f5e7781b122cd881df324a38e519d6d66f0
Reviewed-on: https://go-review.googlesource.com/11073Reviewed-by: Keith Randall <khr@golang.org>