* recog.c (split_all_insns): Do not update reg info.
* regrename.c (regrename_optimize): Likewise.
* toplev.c (rest_of_handle_reorder_blocks): Likewise.
* flow.c (struct propagate_block_info): Add insn_num field.
(reg_deaths): New array.
(life_analysis): Free reg_deaths info.
(allocate_reg_life_data): Allocate reg_deaths array.
(propagate_one_insn): Use new array.
(init_propagate_block): Initialize it.
(free_propagate_block_info): Finish compuation of
REG_LIVE_LENGTH
(attempt_auto_inc): Sanity check that REG_INFO is not
computed at same time.
(mark_used_regs): Update new array.
* reg-stack.c (subst_stack_regs): Unshare clobbers before
substitution.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@77396 138bc75d-0d04-0410-961f-82ee72b054a4