libqbe/test/_live.ssa

# this control flow graph is irreducible
# yet, we expecet the liveness analysis
# to work properly and make %x live in
# the block @left
#
# nothing should ever be live at the entry

function $test() {
@start
	%b =w copy 0
	%x =w copy 10
	jnz 0, @loop, @left
@left
	jmp @inloop
@loop
	%x1 =w add %x, 1
@inloop
	%b1 =w add %b, 1
@endloop
	jmp @loop
}