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# 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
@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
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