gcc-8.3/gcc/lra()
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開始行:
*参照元 [#qb4d62d3]
#backlinks
*説明 [#m55cd702]
-パス: [[gcc-8.3/gcc/lra.c]]
-FIXME: これは何？
--説明
**引数 [#pb6c7c67]
-FILE *f
--
**返り値 [#wfb24545]
-なし
--
**参考 [#e02d686b]
*実装 [#jed3dd42]
/* Major LRA entry function. F is a file should be used...
debug info. */
void
lra (FILE *f)
{
int i;
bool live_p, inserted_p;
lra_dump_file = f;
timevar_push (TV_LRA);
-
--[[gcc-8.3/gcc/timevar_push()]]
/* Make sure that the last insn is a note. Some subse...
need it. */
emit_note (NOTE_INSN_DELETED);
COPY_HARD_REG_SET (lra_no_alloc_regs, ira_no_alloc_reg...
init_reg_info ();
expand_reg_info ();
init_insn_recog_data ();
-
--[[gcc-8.3/gcc/emit_note()]]
--[[gcc-8.3/gcc/COPY_HARD_REG_SET()]]
--[[gcc-8.3/gcc/init_reg_info()]]
--[[gcc-8.3/gcc/expand_reg_info()]]
--[[gcc-8.3/gcc/init_insn_recog_data()]]
/* Some quick check on RTL generated by previous passe...
if (flag_checking)
check_rtl (false);
lra_in_progress = 1;
lra_live_range_iter = lra_coalesce_iter = lra_constrai...
lra_assignment_iter = lra_assignment_iter_after_spill ...
lra_inheritance_iter = lra_undo_inheritance_iter = 0;
lra_rematerialization_iter = 0;
setup_reg_spill_flag ();
-
--[[gcc-8.3/gcc/check_rtl()]]
--[[gcc-8.3/gcc/setup_reg_spill_flag()]]
/* Function remove_scratches can creates new pseudos f...
so set up lra_constraint_new_regno_start before its...
permit changing reg classes for pseudos created by ...
simplification. */
lra_constraint_new_regno_start = lra_new_regno_start =...
lra_bad_spill_regno_start = INT_MAX;
remove_scratches ();
-
--[[gcc-8.3/gcc/max_reg_num()]]
--[[gcc-8.3/gcc/remove_scratches()]]
/* A function that has a non-local label that can reac...
block via non-exceptional paths must save all call-...
registers. */
if (cfun->has_nonlocal_label && has_nonexceptional_rec...
crtl->saves_all_registers = 1;
if (crtl->saves_all_registers)
for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
if (! call_used_regs[i] && ! fixed_regs[i] && ! LO...
df_set_regs_ever_live (i, true);
-
--[[gcc-8.3/gcc/has_nonexceptional_receiver()]]
--[[gcc-8.3/gcc/LOCAL_REGNO()]]
--[[gcc-8.3/gcc/df_set_regs_ever_live()]]
/* We don't DF from now and avoid its using because it...
expensive when a lot of RTL changes are made. */
df_set_flags (DF_NO_INSN_RESCAN);
lra_constraint_insn_stack.create (get_max_uid ());
lra_constraint_insn_stack_bitmap = sbitmap_alloc (get_...
bitmap_clear (lra_constraint_insn_stack_bitmap);
lra_live_ranges_init ();
lra_constraints_init ();
lra_curr_reload_num = 0;
push_insns (get_last_insn (), NULL);
-
--[[gcc-8.3/gcc/df_set_flags()]]
--[[gcc-8.3/gcc/sbitmap_alloc()]]
--[[gcc-8.3/gcc/get_max_uid()]]
--[[gcc-8.3/gcc/bitmap_clear()]]
--[[gcc-8.3/gcc/lra_live_ranges_init()]]
--[[gcc-8.3/gcc/lra_constraints_init()]]
--[[gcc-8.3/gcc/push_insns()]]
--[[gcc-8.3/gcc/get_last_insn()]]
/* It is needed for the 1st coalescing. */
bitmap_initialize (&lra_inheritance_pseudos, ®_obst...
bitmap_initialize (&lra_split_regs, ®_obstack);
bitmap_initialize (&lra_optional_reload_pseudos, ®_...
bitmap_initialize (&lra_subreg_reload_pseudos, ®_ob...
live_p = false;
if (maybe_ne (get_frame_size (), 0) && crtl->stack_ali...
/* If we have a stack frame, we must align it now. ...
may be a part of the offset computation for regis...
elimination. */
assign_stack_local (BLKmode, 0, crtl->stack_alignmen...
lra_init_equiv ();
-
--[[gcc-8.3/gcc/bitmap_initialize()]]
--[[gcc-8.3/gcc/maybe_ne()]]
--[[gcc-8.3/gcc/get_frame_size()]]
--[[gcc-8.3/gcc/assign_stack_local()]]
--[[gcc-8.3/gcc/lra_init_equiv()]]
for (;;)
{
for (;;)
{
bool reloads_p = lra_constraints (lra_constraint_iter...
/* Constraint transformations may result in that elim...
hard regs become uneliminable and pseudos which us...
should be spilled. It is better to do it before p...
assignments.
For example, rs6000 can make
RS6000_PIC_OFFSET_TABLE_REGNUM uneliminable if we ...
to use a constant pool. */
lra_eliminate (false, false);
-
--[[gcc-8.3/gcc/lra_constraints()]]
--[[gcc-8.3/gcc/lra_eliminate()]]
/* We should try to assign hard registers to scratche...
if there were no RTL transformations in lra_constr...
Also we should check IRA assignments on the first
iteration as they can be wrong because of early cl...
operands which are ignored in IRA. */
if (! reloads_p && lra_constraint_iter > 1)
{
/* Stack is not empty here only when there are ch...
during the elimination sub-pass. */
if (bitmap_empty_p (lra_constraint_insn_stack_bit...
break;
else
/* If there are no reloads but changing due
elimination, restart the constraint sub-pass
first. */
continue;
}
-
--[[gcc-8.3/gcc/bitmap_empty_p()]]
/* Do inheritance only for regular algorithms. */
if (! lra_simple_p)
{
if (flag_ipa_ra)
{
if (live_p)
lra_clear_live_ranges ();
/* As a side-effect of lra_create_live_ranges, we ca...
actual_call_used_reg_set, which is needed during
lra_inheritance. */
lra_create_live_ranges (true, true);
live_p = true;
}
lra_inheritance ();
}
if (live_p)
lra_clear_live_ranges ();
-
--[[gcc-8.3/gcc/lra_clear_live_ranges()]]
--[[gcc-8.3/gcc/lra_create_live_ranges()]]
--[[gcc-8.3/gcc/lra_inheritance()]]
bool fails_p;
do
{
/* We need live ranges for lra_assign -- so build...
But don't remove dead insns or change global live
info as we can undo inheritance transformations after
inheritance pseudo assigning. */
lra_create_live_ranges (true, false);
live_p = true;
/* If we don't spill non-reload and non-inheritance
pseudos, there is no sense to run memory-memory move
coalescing. If inheritance pseudos were spilled, the
memory-memory moves involving them will be removed by
pass undoing inheritance. */
if (lra_simple_p)
lra_assign (fails_p);
else
{
bool spill_p = !lra_assign (fails_p);
if (lra_undo_inheritance ())
live_p = false;
if (spill_p && ! fails_p)
{
if (! live_p)
{
lra_create_live_ranges (true, true);
live_p = true;
}
if (lra_coalesce ())
live_p = false;
}
if (! live_p)
lra_clear_live_ranges ();
}
if (fails_p)
{
/* It is a very rare case. It is the last hope to
split a hard regno live range for a reload
pseudo. */
if (live_p)
lra_clear_live_ranges ();
live_p = false;
if (! lra_split_hard_reg_for ())
break;
}
}
while (fails_p);
-
--[[gcc-8.3/gcc/lra_create_live_ranges()]]
--[[gcc-8.3/gcc/lra_assign()]]
--[[gcc-8.3/gcc/lra_undo_inheritance()]]
--[[gcc-8.3/gcc/lra_coalesce()]]
--[[gcc-8.3/gcc/lra_split_hard_reg_for()]]
}
/* Don't clear optional reloads bitmap until all c...
satisfied as we need to differ them from regular reloa...
bitmap_clear (&lra_optional_reload_pseudos);
bitmap_clear (&lra_subreg_reload_pseudos);
bitmap_clear (&lra_inheritance_pseudos);
bitmap_clear (&lra_split_regs);
if (! live_p)
{
/* We need full live info for spilling pseudos into
registers instead of memory. */
lra_create_live_ranges (lra_reg_spill_p, true);
live_p = true;
}
-
--[[gcc-8.3/gcc/bitmap_clear()]]
/* We should check necessity for spilling here as ...
range pass can remove spilled pseudos. */
if (! lra_need_for_spills_p ())
break;
-
--[[gcc-8.3/gcc/lra_need_for_spills_p()]]
/* Now we know what pseudos should be spilled. Tr...
rematerialize them first. */
if (lra_remat ())
{
/* We need full live info -- see the comment above. */
lra_create_live_ranges (lra_reg_spill_p, true);
live_p = true;
if (! lra_need_for_spills_p ())
break;
}
lra_spill ();
-
--[[gcc-8.3/gcc/lra_remat()]]
--[[gcc-8.3/gcc/lra_need_for_spills_p()]]
--[[gcc-8.3/gcc/lra_spill()]]
/* Assignment of stack slots changes elimination o...
some eliminations. So update the offsets here. */
lra_eliminate (false, false);
lra_constraint_new_regno_start = max_reg_num ();
if (lra_bad_spill_regno_start == INT_MAX
&& lra_inheritance_iter > LRA_MAX_INHERITANCE_PASSES
&& lra_rematerialization_iter > LRA_MAX_REMATERIALIZA...
/* After switching off inheritance and rematerialization
passes, avoid spilling reload pseudos will be create...
prevent LRA cycling in some complicated cases. */
lra_bad_spill_regno_start = lra_constraint_new_regno_st...
lra_assignment_iter_after_spill = 0;
}
-
--[[gcc-8.3/gcc/lra_eliminate()]]
--[[gcc-8.3/gcc/max_reg_num()]]
restore_scratches ();
lra_eliminate (true, false);
lra_final_code_change ();
lra_in_progress = 0;
if (live_p)
lra_clear_live_ranges ();
lra_live_ranges_finish ();
lra_constraints_finish ();
finish_reg_info ();
sbitmap_free (lra_constraint_insn_stack_bitmap);
lra_constraint_insn_stack.release ();
finish_insn_recog_data ();
regstat_free_n_sets_and_refs ();
regstat_free_ri ();
reload_completed = 1;
update_inc_notes ();
inserted_p = fixup_abnormal_edges ();
-
--[[gcc-8.3/gcc/resotre_scratches()]]
--[[gcc-8.3/gcc/lra_eliminate()]]
--[[gcc-8.3/gcc/lra_final_code_change()]]
--[[gcc-8.3/gcc/lra_clear_live_ranges()]]
--[[gcc-8.3/gcc/lra_live_ranges_finish()]]
--[[gcc-8.3/gcc/lra_constraints_finish()]]
--[[gcc-8.3/gcc/finish_reg_info()]]
--[[gcc-8.3/gcc/sbitmap_free()]]
--[[gcc-8.3/gcc/finish_insn_recog_data()]]
--[[gcc-8.3/gcc/regstat_free_n_sets_and_refs()]]
--[[gcc-8.3/gcc/regstat_free_ri()]]
--[[gcc-8.3/gcc/update_inc_notes()]]
/* We've possibly turned single trapping insn into mul...
if (cfun->can_throw_non_call_exceptions)
{
auto_sbitmap blocks (last_basic_block_for_fn (cfun...
bitmap_ones (blocks);
find_many_sub_basic_blocks (blocks);
}
if (inserted_p)
commit_edge_insertions ();
-
--[[gcc-8.3/gcc/auto_sbitmap]]
--[[gcc-8.3/gcc/last_basic_block_for_fn()]]
--[[gcc-8.3/gcc/bitmap_ones()]]
--[[gcc-8.3/gcc/find_many_sub_basic_blocks()]]
--[[gcc-8.3/gcc/commit_edge_insertions()]]
/* Replacing pseudos with their memory equivalents mig...
created shared rtx. Subsequent passes would get co...
by this, so unshare everything here. */
unshare_all_rtl_again (get_insns ());
if (flag_checking)
check_rtl (true);
timevar_pop (TV_LRA);
}
-
--[[gcc-8.3/gcc/unshare_all_rtl_again()]]
--[[gcc-8.3/gcc/get_insns()]]
--[[gcc-8.3/gcc/check_rtl()]]
--[[gcc-8.3/gcc/timevar_pop()]]
*コメント [#aa0bf522]
終了行:
*参照元 [#qb4d62d3]
#backlinks
*説明 [#m55cd702]
-パス: [[gcc-8.3/gcc/lra.c]]
-FIXME: これは何？
--説明
**引数 [#pb6c7c67]
-FILE *f
--
**返り値 [#wfb24545]
-なし
--
**参考 [#e02d686b]
*実装 [#jed3dd42]
/* Major LRA entry function. F is a file should be used...
debug info. */
void
lra (FILE *f)
{
int i;
bool live_p, inserted_p;
lra_dump_file = f;
timevar_push (TV_LRA);
-
--[[gcc-8.3/gcc/timevar_push()]]
/* Make sure that the last insn is a note. Some subse...
need it. */
emit_note (NOTE_INSN_DELETED);
COPY_HARD_REG_SET (lra_no_alloc_regs, ira_no_alloc_reg...
init_reg_info ();
expand_reg_info ();
init_insn_recog_data ();
-
--[[gcc-8.3/gcc/emit_note()]]
--[[gcc-8.3/gcc/COPY_HARD_REG_SET()]]
--[[gcc-8.3/gcc/init_reg_info()]]
--[[gcc-8.3/gcc/expand_reg_info()]]
--[[gcc-8.3/gcc/init_insn_recog_data()]]
/* Some quick check on RTL generated by previous passe...
if (flag_checking)
check_rtl (false);
lra_in_progress = 1;
lra_live_range_iter = lra_coalesce_iter = lra_constrai...
lra_assignment_iter = lra_assignment_iter_after_spill ...
lra_inheritance_iter = lra_undo_inheritance_iter = 0;
lra_rematerialization_iter = 0;
setup_reg_spill_flag ();
-
--[[gcc-8.3/gcc/check_rtl()]]
--[[gcc-8.3/gcc/setup_reg_spill_flag()]]
/* Function remove_scratches can creates new pseudos f...
so set up lra_constraint_new_regno_start before its...
permit changing reg classes for pseudos created by ...
simplification. */
lra_constraint_new_regno_start = lra_new_regno_start =...
lra_bad_spill_regno_start = INT_MAX;
remove_scratches ();
-
--[[gcc-8.3/gcc/max_reg_num()]]
--[[gcc-8.3/gcc/remove_scratches()]]
/* A function that has a non-local label that can reac...
block via non-exceptional paths must save all call-...
registers. */
if (cfun->has_nonlocal_label && has_nonexceptional_rec...
crtl->saves_all_registers = 1;
if (crtl->saves_all_registers)
for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
if (! call_used_regs[i] && ! fixed_regs[i] && ! LO...
df_set_regs_ever_live (i, true);
-
--[[gcc-8.3/gcc/has_nonexceptional_receiver()]]
--[[gcc-8.3/gcc/LOCAL_REGNO()]]
--[[gcc-8.3/gcc/df_set_regs_ever_live()]]
/* We don't DF from now and avoid its using because it...
expensive when a lot of RTL changes are made. */
df_set_flags (DF_NO_INSN_RESCAN);
lra_constraint_insn_stack.create (get_max_uid ());
lra_constraint_insn_stack_bitmap = sbitmap_alloc (get_...
bitmap_clear (lra_constraint_insn_stack_bitmap);
lra_live_ranges_init ();
lra_constraints_init ();
lra_curr_reload_num = 0;
push_insns (get_last_insn (), NULL);
-
--[[gcc-8.3/gcc/df_set_flags()]]
--[[gcc-8.3/gcc/sbitmap_alloc()]]
--[[gcc-8.3/gcc/get_max_uid()]]
--[[gcc-8.3/gcc/bitmap_clear()]]
--[[gcc-8.3/gcc/lra_live_ranges_init()]]
--[[gcc-8.3/gcc/lra_constraints_init()]]
--[[gcc-8.3/gcc/push_insns()]]
--[[gcc-8.3/gcc/get_last_insn()]]
/* It is needed for the 1st coalescing. */
bitmap_initialize (&lra_inheritance_pseudos, ®_obst...
bitmap_initialize (&lra_split_regs, ®_obstack);
bitmap_initialize (&lra_optional_reload_pseudos, ®_...
bitmap_initialize (&lra_subreg_reload_pseudos, ®_ob...
live_p = false;
if (maybe_ne (get_frame_size (), 0) && crtl->stack_ali...
/* If we have a stack frame, we must align it now. ...
may be a part of the offset computation for regis...
elimination. */
assign_stack_local (BLKmode, 0, crtl->stack_alignmen...
lra_init_equiv ();
-
--[[gcc-8.3/gcc/bitmap_initialize()]]
--[[gcc-8.3/gcc/maybe_ne()]]
--[[gcc-8.3/gcc/get_frame_size()]]
--[[gcc-8.3/gcc/assign_stack_local()]]
--[[gcc-8.3/gcc/lra_init_equiv()]]
for (;;)
{
for (;;)
{
bool reloads_p = lra_constraints (lra_constraint_iter...
/* Constraint transformations may result in that elim...
hard regs become uneliminable and pseudos which us...
should be spilled. It is better to do it before p...
assignments.
For example, rs6000 can make
RS6000_PIC_OFFSET_TABLE_REGNUM uneliminable if we ...
to use a constant pool. */
lra_eliminate (false, false);
-
--[[gcc-8.3/gcc/lra_constraints()]]
--[[gcc-8.3/gcc/lra_eliminate()]]
/* We should try to assign hard registers to scratche...
if there were no RTL transformations in lra_constr...
Also we should check IRA assignments on the first
iteration as they can be wrong because of early cl...
operands which are ignored in IRA. */
if (! reloads_p && lra_constraint_iter > 1)
{
/* Stack is not empty here only when there are ch...
during the elimination sub-pass. */
if (bitmap_empty_p (lra_constraint_insn_stack_bit...
break;
else
/* If there are no reloads but changing due
elimination, restart the constraint sub-pass
first. */
continue;
}
-
--[[gcc-8.3/gcc/bitmap_empty_p()]]
/* Do inheritance only for regular algorithms. */
if (! lra_simple_p)
{
if (flag_ipa_ra)
{
if (live_p)
lra_clear_live_ranges ();
/* As a side-effect of lra_create_live_ranges, we ca...
actual_call_used_reg_set, which is needed during
lra_inheritance. */
lra_create_live_ranges (true, true);
live_p = true;
}
lra_inheritance ();
}
if (live_p)
lra_clear_live_ranges ();
-
--[[gcc-8.3/gcc/lra_clear_live_ranges()]]
--[[gcc-8.3/gcc/lra_create_live_ranges()]]
--[[gcc-8.3/gcc/lra_inheritance()]]
bool fails_p;
do
{
/* We need live ranges for lra_assign -- so build...
But don't remove dead insns or change global live
info as we can undo inheritance transformations after
inheritance pseudo assigning. */
lra_create_live_ranges (true, false);
live_p = true;
/* If we don't spill non-reload and non-inheritance
pseudos, there is no sense to run memory-memory move
coalescing. If inheritance pseudos were spilled, the
memory-memory moves involving them will be removed by
pass undoing inheritance. */
if (lra_simple_p)
lra_assign (fails_p);
else
{
bool spill_p = !lra_assign (fails_p);
if (lra_undo_inheritance ())
live_p = false;
if (spill_p && ! fails_p)
{
if (! live_p)
{
lra_create_live_ranges (true, true);
live_p = true;
}
if (lra_coalesce ())
live_p = false;
}
if (! live_p)
lra_clear_live_ranges ();
}
if (fails_p)
{
/* It is a very rare case. It is the last hope to
split a hard regno live range for a reload
pseudo. */
if (live_p)
lra_clear_live_ranges ();
live_p = false;
if (! lra_split_hard_reg_for ())
break;
}
}
while (fails_p);
-
--[[gcc-8.3/gcc/lra_create_live_ranges()]]
--[[gcc-8.3/gcc/lra_assign()]]
--[[gcc-8.3/gcc/lra_undo_inheritance()]]
--[[gcc-8.3/gcc/lra_coalesce()]]
--[[gcc-8.3/gcc/lra_split_hard_reg_for()]]
}
/* Don't clear optional reloads bitmap until all c...
satisfied as we need to differ them from regular reloa...
bitmap_clear (&lra_optional_reload_pseudos);
bitmap_clear (&lra_subreg_reload_pseudos);
bitmap_clear (&lra_inheritance_pseudos);
bitmap_clear (&lra_split_regs);
if (! live_p)
{
/* We need full live info for spilling pseudos into
registers instead of memory. */
lra_create_live_ranges (lra_reg_spill_p, true);
live_p = true;
}
-
--[[gcc-8.3/gcc/bitmap_clear()]]
/* We should check necessity for spilling here as ...
range pass can remove spilled pseudos. */
if (! lra_need_for_spills_p ())
break;
-
--[[gcc-8.3/gcc/lra_need_for_spills_p()]]
/* Now we know what pseudos should be spilled. Tr...
rematerialize them first. */
if (lra_remat ())
{
/* We need full live info -- see the comment above. */
lra_create_live_ranges (lra_reg_spill_p, true);
live_p = true;
if (! lra_need_for_spills_p ())
break;
}
lra_spill ();
-
--[[gcc-8.3/gcc/lra_remat()]]
--[[gcc-8.3/gcc/lra_need_for_spills_p()]]
--[[gcc-8.3/gcc/lra_spill()]]
/* Assignment of stack slots changes elimination o...
some eliminations. So update the offsets here. */
lra_eliminate (false, false);
lra_constraint_new_regno_start = max_reg_num ();
if (lra_bad_spill_regno_start == INT_MAX
&& lra_inheritance_iter > LRA_MAX_INHERITANCE_PASSES
&& lra_rematerialization_iter > LRA_MAX_REMATERIALIZA...
/* After switching off inheritance and rematerialization
passes, avoid spilling reload pseudos will be create...
prevent LRA cycling in some complicated cases. */
lra_bad_spill_regno_start = lra_constraint_new_regno_st...
lra_assignment_iter_after_spill = 0;
}
-
--[[gcc-8.3/gcc/lra_eliminate()]]
--[[gcc-8.3/gcc/max_reg_num()]]
restore_scratches ();
lra_eliminate (true, false);
lra_final_code_change ();
lra_in_progress = 0;
if (live_p)
lra_clear_live_ranges ();
lra_live_ranges_finish ();
lra_constraints_finish ();
finish_reg_info ();
sbitmap_free (lra_constraint_insn_stack_bitmap);
lra_constraint_insn_stack.release ();
finish_insn_recog_data ();
regstat_free_n_sets_and_refs ();
regstat_free_ri ();
reload_completed = 1;
update_inc_notes ();
inserted_p = fixup_abnormal_edges ();
-
--[[gcc-8.3/gcc/resotre_scratches()]]
--[[gcc-8.3/gcc/lra_eliminate()]]
--[[gcc-8.3/gcc/lra_final_code_change()]]
--[[gcc-8.3/gcc/lra_clear_live_ranges()]]
--[[gcc-8.3/gcc/lra_live_ranges_finish()]]
--[[gcc-8.3/gcc/lra_constraints_finish()]]
--[[gcc-8.3/gcc/finish_reg_info()]]
--[[gcc-8.3/gcc/sbitmap_free()]]
--[[gcc-8.3/gcc/finish_insn_recog_data()]]
--[[gcc-8.3/gcc/regstat_free_n_sets_and_refs()]]
--[[gcc-8.3/gcc/regstat_free_ri()]]
--[[gcc-8.3/gcc/update_inc_notes()]]
/* We've possibly turned single trapping insn into mul...
if (cfun->can_throw_non_call_exceptions)
{
auto_sbitmap blocks (last_basic_block_for_fn (cfun...
bitmap_ones (blocks);
find_many_sub_basic_blocks (blocks);
}
if (inserted_p)
commit_edge_insertions ();
-
--[[gcc-8.3/gcc/auto_sbitmap]]
--[[gcc-8.3/gcc/last_basic_block_for_fn()]]
--[[gcc-8.3/gcc/bitmap_ones()]]
--[[gcc-8.3/gcc/find_many_sub_basic_blocks()]]
--[[gcc-8.3/gcc/commit_edge_insertions()]]
/* Replacing pseudos with their memory equivalents mig...
created shared rtx. Subsequent passes would get co...
by this, so unshare everything here. */
unshare_all_rtl_again (get_insns ());
if (flag_checking)
check_rtl (true);
timevar_pop (TV_LRA);
}
-
--[[gcc-8.3/gcc/unshare_all_rtl_again()]]
--[[gcc-8.3/gcc/get_insns()]]
--[[gcc-8.3/gcc/check_rtl()]]
--[[gcc-8.3/gcc/timevar_pop()]]
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