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* config/rx/rx.h (JUMP_ALIGN, LABEL_ALIGN, LOOP_ALIGN): Define. (LABEL_ALIGN_AFTER_BARRIER): Pass label to rx_align_for_label * config/rx/rx.c (rx_align_for_label): Add label and uses_threshold parameters. Do not align when the label is not used enough. * config/rx/rx-protos.h (rx_align_for_label): Update prototype. From-SVN: r173615
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