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* regrename.h: New file. * regrename.c: Include it. Also include "emit-rtl.h". (struct du_head, struct du_chain, du_head_p DEF_VEC and DEF_VEC_ALLOC_P): Move to regrename.h. (do_replace): Remove declaration. (insn_rr): New variable. (cur_operand): New static variable. (regrename_chain_from_id): Renamed from chain_from_id and no longer static. All callers changed. (record_operand_use): New static function. (scan_rtx_reg): Use it. (find_best_rename_reg): New function, broken out of rename_chains. (rename_chains): Use it. Don't update chain regno and nregs here, ... (regrename_do_replace): ... do it here instead. Renamed from do_replace, and no longer static. All callers changed. (regrename_analyze): No longer static. New arg bb_mask. All callers changed. If bb_mask is nonzero, use it to limit the number of basic blocks we analyze. If we failed to analyze a block, clear insn operand data. (record_out_operands): New arg insn_info. Update cur_operand if it is nonnull. (build_def_use): If insn_rr is nonnull, pass an insn_info to record_out_operands, and update cur_operand here as well. (regrename_init, regrename_finish): New functions. (regrename_optimize): Use them. * Makefile.in (regrename.o): Adjust dependencies. From-SVN: r180198
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