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PR rtl-optimization/17482 * postreload-gcse.c (reg_avail_info, oprs_unchanged_p, load_killed_in_block_p): Clarify comments. (record_last_reg_set_info): Make static inline. (mark_call, mark_set, mark_clobber, mark_oprs_set): Remove. (record_opr_changes): New function to replace the above. (compute_hash_table): Clarify comments. Use record_opr_changes. (reg_set_between_after_reload_p): Clean up. (reg_used_between_after_reload_p): Likewise. (eliminate_partially_redundant_load): Clarify comments. From-SVN: r87794
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