gcc/
* combine.c (i2mod): Strengthen this variable from rtx to rtx_insn *.
(struct reg_stat_struct): Likewise for fields "last_death", "last_set".
(subst_insn): Likewise for this variable.
(added_links_insn): Likewise.
(struct insn_link): Likewise for field "insn".
(alloc_insn_link): Likewise for param "insn".
(struct undobuf): Likewise for field "other_insn".
(find_single_use): Likewise for param "insn" and local "next".
(combine_validate_cost): Likewise for params "i0", "i1", "i2", "i3".
(delete_noop_moves): Likewise for locals "insn", "next".
(create_log_links): Likewise for locals "insn", "use_insn".
Strengthen local "next_use" from rtx * to rtx_insn **.
(insn_a_feeds_b): Likewise for params "a", "b".
(combine_instructions): Likewise for param "f" and locals "insn",
"next", "prev", "first", "last_combined_insn", "link", "link1",
"temp". Replace use of NULL_RTX with NULL when referring to
insns.
(setup_incoming_promotions): Likewise for param "first"
(set_nonzero_bits_and_sign_copies): Likewise for local "insn".
(can_combine_p): Likewise for params "insn", "i3", "pred",
"pred2", "succ", "succ2" and for local "p".
(combinable_i3pat): Likewise for param "i3".
(cant_combine_insn_p): Likewise for param "insn".
(likely_spilled_retval_p): Likewise.
(adjust_for_new_dest): Likewise.
(update_cfg_for_uncondjump): Likewise, also for local "insn".
(try_combine): Likewise for return type and for params "i3", "i2",
"i1", "i0", "last_combined_insn", and for locals "insn",
"cc_use_insn", "p", "first", "last", "i2_insn", "i1_insn",
"i0_insn". Eliminate local "tem" in favor of new locals
"tem_note" and "tem_insn", the latter being an rtx_insn *. Add a
checked cast for now to rtx_insn * on the return type of
gen_rtx_INSN. Replace use of NULL_RTX with NULL when referring to
insns.
(find_split_point): Strengthen param "insn" from rtx to
rtx_insn *.
(simplify_set): Likewise for local "other_insn".
(recog_for_combine): Likewise for param "insn".
(record_value_for_reg): Likewise.
(record_dead_and_set_regs_1): Likewise for local
"record_dead_insn".
(record_dead_and_set_regs): Likewise for param "insn".
(record_promoted_value): Likewise.
(check_promoted_subreg): Likewise.
(get_last_value_validate): Likewise.
(reg_dead_at_p): Likewise.
(move_deaths): Likewise for param "to_insn".
(distribute_notes): Likewise for params "from_insn", "i3", "i2"
and locals "place", "place2", "cc0_setter". Eliminate local "tem
in favor of new locals "tem_note" and "tem_insn", the latter being
an rtx_insn *.
(distribute_links): Strengthen locals "place", "insn" from rtx to
rtx_insn *.
---