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* df-scan.c (df_ref_chain_change_bb): Simplify. (df_insn_change_bb): Add new_bb argument. Simplify. Call set_block_for_insn if there's any change. * df.h ((df_insn_change_bb): Fix prototype. * cfgrtl.c (update_bb_for_insn_chain): Pass bb to df_insn_change_bb, don't call set_block_for_insn. * emit-rtl.c (reorder_insns): Likewise. * haifa-sched.c (move_insn): Likewise. From-SVN: r132795
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