/cp
2014-08-27 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/52892
* semantics.c (cxx_eval_call_expression): Use STRIP_NOPS on the
result of cxx_eval_constant_expression.
/testsuite
2014-08-27 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/52892
* g++.dg/cpp0x/constexpr-52892-1.C: New.
* g++.dg/cpp0x/constexpr-52892-2.C: Likewise.
* g++.dg/cpp0x/constexpr-52282-1.C: Likewise.
From-SVN: r214579
PR target/62262
* config/aarch64/aarch64.md (*andim_ashift<mode>_bfiz): Check the shift
amount before using it.
* gcc.target/aarch64/pr62262.c: New test.
From-SVN: r214578
gcc/
2014-08-26 David Malcolm <dmalcolm@redhat.com>
* cselib.h (struct elt_loc_list): Strengthen field "setting_insn"
from rtx to rtx_insn *.
(cselib_lookup_from_insn): Likewise for final param.
(cselib_subst_to_values_from_insn): Likewise.
(cselib_add_permanent_equiv): Likewise.
* cselib.c (cselib_current_insn): Likewise for this variable.
(cselib_subst_to_values_from_insn): Likewise for param "insn".
(cselib_lookup_from_insn): Likewise.
(cselib_add_permanent_equiv): Likewise for param "insn" and local
"save_cselib_current_insn".
(cselib_process_insn): Replace use of NULL_RTX with NULL.
* sched-deps.c (add_insn_mem_dependence): Strengthen param "insn"
from rtx to rtx_insn *.
From-SVN: r214550
gcc/
2014-08-26 David Malcolm <dmalcolm@redhat.com>
* sched-int.h (sched_init_insn_luid): Strengthen param 1 from rtx
to rtx_insn *.
(struct reg_use_data): Likewise for field "insn".
(insn_cost): Likewise for param.
(real_insn_for_shadow): Likewise for return type and param.
(increase_insn_priority): Likewise for param 1.
(debug_dependencies): Likewise for both params.
* haifa-sched.c (insn_delay): Likewise for param "insn".
(real_insn_for_shadow): Likewise for return type and param "insn".
(update_insn_after_change): Likewise for param "insn".
(recompute_todo_spec): Likewise for param "next" and locals "pro",
"other".
(insn_cost): Likewise for param "insn".
(increase_insn_priority): Likewise.
(calculate_reg_deaths): Likewise.
(setup_insn_reg_pressure_info): Likewise.
(model_schedule): Strengthen from vec<rtx> to vec<rtx_insn *>.
(model_index): Strengthen param "insn" from rtx to rtx_insn *.
(model_recompute): Likewise.
(must_restore_pattern_p): Likewise for param "next".
(model_excess_cost): Likewise for param "insn".
(queue_remove): Likewise.
(adjust_priority): Likewise for param "prev".
(update_register_pressure): Likewise for param "insn".
(setup_insn_max_reg_pressure): Likewise for local "insn".
(update_reg_and_insn_max_reg_pressure): Likewise for param "insn".
(model_add_to_schedule): Likewise.
(model_reset_queue_indices): Likewise for local "insn".
(unschedule_insns_until): Strengthen local "recompute_vec" from
auto_vec<rtx> to auto_vec<rtx_insn *>. Strengthen locals "last",
"con" from rtx to rtx_insn *.
(restore_last_backtrack_point): Likewise for both locals "x". Add
checked casts.
(estimate_insn_tick): Likewise for param "insn".
(commit_schedule): Likewise for params "prev_head", "tail" and
local "x".
(verify_shadows): Likewise for locals "i1", "i2".
(dump_insn_stream): Likewise for params "head", "tail" and locals
"next_tail", "insn".
(schedule_block): Likewise for locals "insn", "x". Add a checked
cast.
(fix_inter_tick): Likewise for params "head", "tail".
(create_check_block_twin): Likewise for local "jump".
(haifa_change_pattern): Likewise for param "insn".
(haifa_speculate_insn): Likewise.
(dump_new_block_header): Likewise for params "head", "tail".
(fix_jump_move): Likewise for param "jump".
(move_block_after_check): Likewise.
(sched_init_insn_luid): Likewise for param "insn".
(sched_init_luids): Likewise for local "insn".
(insn_luid): Likewise for param "insn".
(init_h_i_d): Likewise.
(haifa_init_h_i_d): Likewise for local "insn".
(haifa_init_insn): Likewise for param "insn".
* sched-deps.c (add_dependence): Likewise for local "real_pro",
"other".
(create_insn_reg_use): Likewise for param "insn".
(setup_insn_reg_uses): Likewise. Add a checked cast.
* sched-ebb.c (debug_ebb_dependencies): Strengthen params "head",
"tail" from rtx to rtx_insn *.
* sched-rgn.c (void debug_dependencies): Likewise, also for locals
"insn", "next_tail".
From-SVN: r214547
gcc/
2014-08-26 David Malcolm <dmalcolm@redhat.com>
* rtl.h (canonicalize_condition): Strengthen param 1 from rtx to
rtx_insn * and param 4 from rtx * to rtx_insn **.
(get_condition): Strengthen param 1 from rtx to rtx_insn * and
param 2 from rtx * to rtx_insn **.
* df.h (can_move_insns_across): Strengthen params 1-4 from rtx to
rtx_insn * and final param from rtx * to rtx_insn **.
* cfgcleanup.c (try_head_merge_bb): Strengthen local "move_before"
from rtx to rtx_insn *.
(try_head_merge_bb): Likewise for both locals named "move_upto".
* df-problems.c (can_move_insns_across): Likewise for params
"from", "to", "across_from", "across_to" and locals "insn",
"next", "max_to". Strengthen param "pmove_upto" from rtx * to
rtx_insn **.
* ifcvt.c (struct noce_if_info): Strengthen field "cond_earliest"
from rtx to rtx_insn *.
(noce_get_alt_condition): Strengthen param "earliest" from rtx *
to rtx_insn **. Strengthen local "insn" from rtx to rtx_insn *.
(noce_try_minmax): Strengthen locals "earliest", "seq" from rtx to
rtx_insn *.
(noce_try_abs): Likewise.
(noce_get_condition): Likewise for param "jump". Strengthen param
"earliest" from rtx * to rtx_insn **.
(noce_find_if_block): Strengthen local "cond_earliest" from rtx to
rtx_insn *.
(find_cond_trap): Likewise.
(dead_or_predicable): Likewise for local "earliest".
* loop-iv.c (check_simple_exit): Likewise for local "at". Add
checked cast.
* rtlanal.c (canonicalize_condition): Likewise for param "insn"
and local "prev". Strengthen param "earliest" from rtx * to
rtx_insn **.
(get_condition): Strengthen param "jump" from rtx to rtx_insn *
Strengthen param "earliest" from rtx * to rtx_insn **.
From-SVN: r214542
gcc/
2014-08-26 David Malcolm <dmalcolm@redhat.com>
* fwprop.c (local_ref_killed_between_p): Strengthen params "from",
"to" and local "insn" from rtx to rtx_insn *.
From-SVN: r214541
gcc/
2014-08-26 David Malcolm <dmalcolm@redhat.com>
* sel-sched.c (find_place_for_bookkeeping): Strengthen local "insn"
from rtx to rtx_insn *.
(need_nop_to_preserve_insn_bb): Likewise for param "insn".
(code_motion_path_driver): Likewise for local "last_insn".
(simplify_changed_insns): Likewise for local "insn".
From-SVN: r214540
gcc/
2014-08-26 David Malcolm <dmalcolm@redhat.com>
* rtl.h (push_to_sequence): Strengthen param from rtx to
rtx_insn *.
(push_to_sequence2): Likewise for both params.
(delete_insns_since): Likewise for param.
(reorder_insns_nobb): Likewise for all three params.
(set_new_first_and_last_insn): Likewise for both params.
* emit-rtl.h (set_first_insn): Strengthen param "insn" from rtx to
rtx_insn *. Remove now-redundant cast.
(set_last_insn): Likewise.
* builtins.c (expand_builtin_return): Strengthen local
"call_fusage" from rtx to rtx_insn *.
* cfgrtl.c (create_basic_block_structure): Likewise for local
"after".
* emit-rtl.c (set_new_first_and_last_insn): Likewise for params
"first", "last" and local "insn".
(delete_insns_since): Likewise for param "from".
(reorder_insns_nobb): Likewise for params "from", "to", "after"
and local "x".
(push_to_sequence): Likewise for param "first" and local "last".
(push_to_sequence2): Likewise for params "first" and "last".
* lra.c (emit_add3_insn): Likewise for local "last".
(lra_emit_add): Likewise.
* lra-constraints.c (base_to_reg): Likewise for locals "insn",
"last_insn".
(process_address_1): Likewise for locals "insn", last".
* modulo-sched.c (ps_first_note): Likewise for return type.
* optabs.c (expand_binop_directly): Likewise for param "last".
From-SVN: r214539
gcc/
2014-08-26 David Malcolm <dmalcolm@redhat.com>
* rtl.h (add_insn): Strengthen param from rtx to rtx_insn *.
(unlink_insn_chain): Strengthen both params from rtx to
rtx_insn *.
* cfgrtl.c (cfg_layout_function_header): Likewise for this
variable.
(unlink_insn_chain): Likewise for params "first" and "last".
Remove now-redundant checked cast.
(record_effective_endpoints): Replace use of NULL_RTX with NULL.
(fixup_reorder_chain): Strengthen local "insn" from rtx to
rtx_insn *.
* emit-rtl.c (link_insn_into_chain): Likewise for all three
params.
(add_insn): Likewise for param "insn" and local "prev".
(add_insn_after_nobb): Likewise for both params and local "next".
(add_insn_before_nobb): Likewise for both params and local "prev".
(add_insn_after): Rename param "after" to "uncast_after",
introducing local "after" with another checked cast.
(add_insn_before): Rename params "insn" and "before", giving them
"uncast_" prefixes, adding the old names back using checked casts.
(emit_note_after): Likewise for param "after".
(emit_note_before): Likewise for param "before".
(emit_label): Add a checked cast.
From-SVN: r214536
gcc/
* cselib.h (cselib_record_sets_hook): Strengthen initial param
"insn" from rtx to rtx_insn *.
* cselib.c (cselib_record_sets_hook): Likewise.
* var-tracking.c (add_with_sets): Likewise, renaming back from
"uncast_insn" to "insn" and eliminating the checked cast from rtx
to rtx_insn *.
From-SVN: r214535
gcc/
* basic-block.h (struct rtl_bb_info): Strengthen fields "end_"
and "header_" from rtx to rtx_insn *.
(struct basic_block_d): Likewise for field "head_" within "x"
field of union basic_block_il_dependent.
(BB_HEAD): Drop function...
(SET_BB_HEAD): ...and this function in favor of...
(BB_HEAD): ...reinstate macro.
(BB_END): Drop function...
(SET_BB_END): ...and this function in favor of...
(BB_END): ...reinstate macro.
(BB_HEADER): Drop function...
(SET_BB_HEADER): ...and this function in favor of...
(BB_HEADER): ...reinstate macro.
* bb-reorder.c (add_labels_and_missing_jumps): Drop use of BB_END.
(fix_crossing_unconditional_branches): Likewise.
* caller-save.c (save_call_clobbered_regs): Likewise.
(insert_one_insn): Drop use of SET_BB_HEAD and SET_BB_END.
* cfgbuild.c (find_bb_boundaries): Drop use of SET_BB_END.
* cfgcleanup.c (merge_blocks_move_successor_nojumps): Likewise.
(merge_blocks_move_successor_nojumps): Likewise.
(outgoing_edges_match): Update use of for_each_rtx to
for_each_rtx_in_insn.
* cfgexpand.c (expand_gimple_cond): Drop use of SET_BB_END.
(expand_gimple_cond): Likewise.
(expand_gimple_tailcall): Likewise.
(expand_gimple_basic_block): Drop use of SET_BB_HEAD and
SET_BB_END.
(construct_exit_block): Drop use of SET_BB_END.
* cfgrtl.c (cfg_layout_function_footer): Strengthen from rtx to
rtx_insn *.
(delete_insn): Rename param "insn" to "uncast_insn", introducing
a new local "insn" with a checked cast to rtx_insn *. Drop use of
SET_BB_HEAD and SET_BB_END.
(create_basic_block_structure): Drop use of SET_BB_HEAD and
SET_BB_END.
(rtl_delete_block): Drop use of SET_BB_HEAD.
(rtl_split_block): Drop use of SET_BB_END.
(emit_nop_for_unique_locus_between): Likewise.
(rtl_merge_blocks): Drop use of SET_BB_END and SET_BB_HEAD.
(block_label): Drop use of SET_BB_HEAD.
(fixup_abnormal_edges): Drop use of SET_BB_END.
(record_effective_endpoints): Drop use of SET_BB_HEADER.
(relink_block_chain): Likewise.
(fixup_reorder_chain): Drop use of SET_BB_END.
(cfg_layout_duplicate_bb): Drop use of SET_BB_HEADER.
(cfg_layout_delete_block): Strengthen local "to" from rtx * to
rtx_insn **. Drop use of SET_BB_HEADER.
(cfg_layout_merge_blocks): Drop use of SET_BB_HEADER, SET_BB_END,
SET_BB_HEAD.
(BB_HEAD): Delete this function.
(SET_BB_HEAD): Likewise.
(BB_END): Likewise.
(SET_BB_END): Likewise.
(BB_HEADER): Likewise.
(SET_BB_HEADER): Likewise.
* emit-rtl.c (add_insn_after): Rename param "insn" to
"uncast_insn", adding a new local "insn" and a checked cast to
rtx_insn *. Drop use of SET_BB_END.
(remove_insn): Strengthen locals "next" and "prev" from rtx to
rtx_insn *. Drop use of SET_BB_HEAD and SET_BB_END.
(reorder_insns): Drop use of SET_BB_END.
(emit_insn_after_1): Strengthen param "first" and locals "last",
"after_after" from rtx to rtx_insn *. Drop use of SET_BB_END.
(emit_pattern_after_noloc): Add checked cast.
* haifa-sched.c (get_ebb_head_tail): Drop use of SET_BB_END.
(restore_other_notes): Likewise.
(move_insn): Likewise.
(sched_extend_bb): Likewise.
(fix_jump_move): Likewise.
* ifcvt.c (noce_process_if_block): Likewise.
(dead_or_predicable): Likewise.
* ira.c (update_equiv_regs): Drop use of SET_BB_HEAD.
* reg-stack.c (change_stack): Drop use of SET_BB_END.
* sel-sched-ir.c (sel_move_insn): Likewise.
* sel-sched.c (move_nop_to_previous_block): Likewise.
* config/c6x/c6x.c (hwloop_optimize): Drop use of SET_BB_HEAD and
SET_BB_END.
* config/ia64/ia64.c (emit_predicate_relation_info): Likewise.
/
* rtx-classes-status.txt (TODO): SET_BB_HEAD, SET_BB_END,
SET_BB_HEADER are done.
From-SVN: r214534
gcc/
* basic-block.h (create_basic_block_structure): Strengthen params
1 "head" and 2 "end" from rtx to rtx_insn *.
* cfgrtl.c (create_basic_block_structure): Likewise.
(rtl_create_basic_block): Update casts from void * to rtx to
rtx_insn *, so that we can pass them as rtx_insn * to
create_basic_block_structure.
* sel-sched-ir.c (sel_create_basic_block): Likewise.
From-SVN: r214533
gcc/
* rtl.h (for_each_inc_dec): Strengthen param 1 from rtx * to
rtx_insn **.
(check_for_inc_dec): Strengthen param "insn" from rtx to
rtx_insn *.
* cselib.h (cselib_process_insn): Likewise.
* cselib.c (cselib_record_sets): Likewise.
(cselib_process_insn): Likewise.
* dse.c (struct insn_info): Likewise for field "insn".
(check_for_inc_dec_1): Likewise for local "insn".
(check_for_inc_dec): Likewise for param "insn".
(scan_insn): Likewise.
(dse_step1): Likewise for local "insn".
* rtlanal.c (for_each_inc_dec): Strengthen param 1 from rtx * to
rtx_insn **. Use for_each_rtx_in_insn rather than for_each_rtx.
From-SVN: r214531
gcc/
* sched-int.h (struct _dep): Strengthen fields "pro" and "con"
from rtx to rtx_insn *.
(DEP_PRO): Delete this function and...
(SET_DEP_PRO): ...this function in favor of...
(DEP_PRO): ...reinstate this macro.
(DEP_CON): Delete this function and...
(SET_DEP_CON): ...this function in favor of...
(DEP_CON): ...reinstate this old macro.
(init_dep_1): Strengthen params 2 and 3 from rtx to rtx_insn *.
(init_dep): Likewise.
(set_priorities): Likewise for both params.
(sd_copy_back_deps): Likewise for params 1 and 2.
* haifa-sched.c (priority): Likewise for param "insn" and local
"next".
(set_priorities): Likewise for params "head" and "tail" and local
"insn".
(process_insn_forw_deps_be_in_spec): Likewise for param "twin" and
local "consumer".
(add_to_speculative_block): Add a checked cast.
(create_check_block_twin): Drop use of SET_DEP_CON.
(add_jump_dependencies): Strengthen params "insn" and "jump" from
rtx to rtx_insn *.
* sched-deps.c (init_dep_1): Likewise for params "pro" and "con".
Drop use of SET_DEP_PRO
(init_dep): Strengthen params "pro" and "con" from rtx to
rtx_insn *.
(sd_copy_back_deps): Likewise for params "to" and "from". Drop
use of SET_DEP_CON.
(DEP_PRO): Delete.
(DEP_CON): Delete.
(SET_DEP_PRO): Delete.
(SET_DEP_CON): Delete.
/
* rtx-classes-status.txt (TODO): SET_DEP_PRO and SET_DEP_CON are
done.
From-SVN: r214530
gcc/
* sel-sched-ir.h (struct vinsn_def): Strengthen field "insn_rtx"
from rtx to rtx_insn *.
(VINSN_INSN_RTX): Eliminate rvalue function and...
(SET_VINSN_INSN): ...lvalue function in favor of...
(VINSN_INSN_RTX): reinstate this old macro.
* sel-sched-ir.c (vinsn_init): Eliminate use of SET_VINSN_INSN_RTX
in favor of VINSN_INSN_RTX.
(VINSN_INSN_RTX): Delete this function.
(SET_VINSN_INSN_RTX): Likewise.
/
* rtx-classes-status.txt (TODO): Remove SET_VINSN_INSN_RTX.
From-SVN: r214529
gcc/
* sel-sched-ir.h (insn_t): Strengthen from rtx to rtx_insn *.
(BND_TO): Delete this function and...
(SET_BND_TO): ...this functions in favor of...
(BND_TO): ...reinstating this macro.
(struct _fence): Strengthen field "executing_insns" from
vec<rtx, va_gc> * to vec<rtx_insn *, va_gc> *. Strengthen fields
"last_scheduled_insn" and "sched_next" from rtx to rtx_insn *.
(_succ_iter_cond): Update param "succp" from rtx * to insn_t *
and param "insn" from rtx to insn_t.
(create_vinsn_from_insn_rtx): Strengthen first param from rtx to
rtx_insn *.
* sched-int.h (insn_vec_t): Strengthen from vec<rtx> to
vec<rtx_insn *> .
(rtx_vec_t): Likewise.
(struct sched_deps_info_def): Strengthen param of "start_insn"
callback from rtx to rtx_insn *. Likewise for param "insn2" of
"note_mem_dep" callback and first param of "note_dep" callback.
* haifa-sched.c (add_to_speculative_block): Strengthen param
"insn" from rtx to rtx_insn *.
(clear_priorities): Likewise.
(calc_priorities): Likewise for local "insn".
* sched-deps.c (haifa_start_insn): Likewise for param "insn".
Remove redundant checked cast.
(haifa_note_mem_dep): Likewise for param "pending_insn".
(haifa_note_dep): Likewise for param "elem".
(note_mem_dep): Likewise for param "e".
(sched_analyze_1): Add checked casts.
(sched_analyze_2): Likewise.
* sel-sched-dump.c (dump_insn_vector): Strengthen local "succ"
from rtx to rtx_insn *.
(debug): Update param from vec<rtx> & to vec<rtx_insn *>, and
from vec<rtx> * to vec<rtx_insn *> *.
* sel-sched-ir.c (blist_add): Remove use of SET_BND_TO
scaffolding.
(flist_add): Strengthen param "executing_insns" from
vec<rtx, va_gc> * to vec<rtx_insn *, va_gc> *.
(advance_deps_context): Remove now-redundant checked cast.
(init_fences): Replace uses of NULL_RTX with NULL.
(merge_fences): Strengthen params "last_scheduled_insn" and
"sched_next" from rtx to rtx_insn * and "executing_insns" from
vec<rtx, va_gc> * to vec<rtx_insn *, va_gc> *.
(add_clean_fence_to_fences): Replace uses of NULL_RTX with NULL.
(get_nop_from_pool): Add local "nop_pat" so that "nop" can be
an instruction, rather than doing double-duty as a pattern.
(return_nop_to_pool): Update for change of insn_t.
(deps_init_id): Remove now-redundant checked cast.
(struct sched_scan_info_def): Strengthen param of "init_insn"
callback from rtx to insn_t.
(sched_scan): Strengthen local "insn" from rtx to rtx_insn *.
(init_global_and_expr_for_insn): Replace uses of NULL_RTX with
NULL.
(get_seqno_by_succs): Strengthen param "insn" and locals "tmp",
"end" from rtx to rtx_insn *.
(create_vinsn_from_insn_rtx): Likewise for param "insn_rtx".
(rtx insn_rtx, bool force_unique_p)
(BND_TO): Delete function.
(SET_BND_TO): Delete function.
* sel-sched.c (advance_one_cycle): Strengthen local "insn" from
rtx to rtx_insn *.
(extract_new_fences_from): Replace uses of NULL_RTX with NULL.
(replace_dest_with_reg_in_expr): Strengthen local "insn_rtx" from
rtx to rtx_insn *.
(undo_transformations): Likewise for param "insn".
(update_liveness_on_insn): Likewise.
(compute_live_below_insn): Likewise for param "insn" and local
"succ".
(update_data_sets): Likewise for param "insn".
(fill_vec_av_set): Replace uses of NULL_RTX with NULL.
(convert_vec_av_set_to_ready): Drop now-redundant checked cast.
(invoke_aftermath_hooks): Strengthen param "best_insn" from rtx to
rtx_insn *.
(move_cond_jump): Likewise for param "insn".
(move_cond_jump): Drop use of SET_BND_TO.
(compute_av_set_on_boundaries): Likewise.
(update_fence_and_insn): Replace uses of NULL_RTX with NULL.
(update_and_record_unavailable_insns): Strengthen local "bb_end"
from rtx to rtx_insn *.
(maybe_emit_renaming_copy): Likewise for param "insn".
(maybe_emit_speculative_check): Likewise.
(handle_emitting_transformations): Likewise.
(remove_insn_from_stream): Likewise.
(code_motion_process_successors): Strengthen local "succ" from rtx
to insn_t.
/
* rtx-classes-status.txt (TODO): Remove SET_BND_TO.
From-SVN: r214528
gcc/
* sel-sched-ir.h (ilist_t): Redefine this typedef in terms of
ilist_t, not _xlist_t;
(ILIST_INSN): Define in terms of new union field "insn".
(ILIST_NEXT): Define in terms of _LIST_NEXT rather than
_XLIST_NEXT.
(struct _list_node): Add new field "insn" to the union, of type
insn_t.
(ilist_add): Replace macro with an inline function, requiring an
insn_t.
(ilist_remove): Define this macro directly in terms of
_list_remove, rather than indirectly via _xlist_remove.
(ilist_clear): Likewise, in terms of _list_clear rather than
_xlist_clear.
(ilist_is_in_p): Replace macro with an inline function, requiring
an insn_t.
(_list_iter_cond_insn): New function.
(ilist_iter_remove): Define this macro directly in terms of
_list_iter_remove, rather than indirectly via _xlist_iter_remove.
(ilist_iterator): Define directly in terms of _list_iterator
rather than indirectly through _xlist_iterator.
(FOR_EACH_INSN): Define in terms of _list_iter_cond_insn rather
than in terms of _FOR_EACH_X.
(FOR_EACH_INSN_1): Likewise.
From-SVN: r214527
PR bootstrap/62260
* Makefile.am (gcc_build_dir): Set to @gcc_build_dir@.
* configure.ac (gcc_build_dir): Set and AC_SUBST according to
$host_subdir.
* Makefile.in: Regenerated.
* configure: Likewise.
From-SVN: r214524
gcc/
* config/rs6000/rs6000.c (class swap_web_entry): Strengthen field
"insn" from rtx to rtx_insn *.
(permute_load): Likewise for param "insn".
(permute_store): Likewise.
(handle_special_swappables): Likewise for local "insn".
(replace_swap_with_copy): Likewise for locals "insn" and
"new_insn".
(rs6000_analyze_swaps): Likewise for local "insn".
From-SVN: r214489
