unsupported option '-fsanitize=dataflow' for target 'i386-unknown-linux-gnu'

While attempting to run DataFlowSanitizer for 32 bit target (-m32), I received the following error:

unsupported option ‘-fsanitize=dataflow’ for target ‘i386-unknown-linux-gnu’

Does it mean that DFSan doesn’t support 32 bit memory model?