thread data $i = align 4 {w 42}
data $fmt = align 1 {b "i%d==%d\n", b 0}

export
function w $main() {
@start
	%pthr =l alloc8 8
	%rval =l alloc8 8
	call $pthread_create(l %pthr, l 0, l $thread, l 0)
	%t =l load %pthr
	call $pthread_join(l %t, l %rval)
	%i0 =w loadw thread $i
	call $printf(l $fmt, ..., w 0, w %i0)
	%i1 =w load %rval
	call $printf(l $fmt, ..., w 1, w %i1)
	ret 0
}

function l $thread(l %arg) {
@start
	%i3 =l add thread $i, 3
	storeb 24, %i3
	%ret =l loadsw thread $i
	ret %ret
}

# >>> output
# i0==42
# i1==402653226
# <<<