2014-12-18 17:00 GMT+00:00 Jiong Wang <jiong.w...@arm.com>: >>>> ok for trunk? >>>> >>>> gcc/ >>>> PR62173 >>>> loop-invariant.c.c (expensive_addr): New hash_table. >>>> (need_expensive_addr_check_p): New bool. >>>> (find_exits): Rename to "find_exists_and_reshuffle. >>>> Support re-shuffle instructions for better loop invariant hoisting.
another question is, is it safe to re-use REG_DEAD info here without calling df_note_add_problem and df_analysis first? am I using those info passed down from the previous pass which calculated these info and maybe broken?
