gcc-8.3/gcc/do_reload()
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開始行:
*参照元 [#eccb1260]
#backlinks
*説明 [#zc6743cc]
-パス: [[gcc-8.3/gcc/ira.c]]
-FIXME: これは何？
--説明
**引数 [#edf61e8b]
-なし
**返り値 [#k2643966]
-なし
**参考 [#b4b33ad6]
*実装 [#me0992e9]
static void
do_reload (void)
{
basic_block bb;
bool need_dce;
unsigned pic_offset_table_regno = INVALID_REGNUM;
-
--[[gcc-8.3/gcc/basic_block]]
if (flag_ira_verbose < 10)
ira_dump_file = dump_file;
-
--[[gcc-8.3/gcc/ira_dump_file(global)]]
--[[gcc-8.3/gcc/dump_file(global)]]
/* If pic_offset_table_rtx is a pseudo register, then ...
after reload to avoid possible wrong usages of hard...
to it. */
if (pic_offset_table_rtx
&& REGNO (pic_offset_table_rtx) >= FIRST_PSEUDO_RE...
pic_offset_table_regno = REGNO (pic_offset_table_rtx);
-
--[[gcc-8.3/gcc/REG_NO()]]
timevar_push (TV_RELOAD);
if (ira_use_lra_p)
{
if (current_loops != NULL)
{
loop_optimizer_finalize ();
free_dominance_info (CDI_DOMINATORS);
}
FOR_ALL_BB_FN (bb, cfun)
bb->loop_father = NULL;
current_loops = NULL;
ira_destroy ();
lra (ira_dump_file);
/* ???!!! Move it before lra () when we use ira_re...
LRA. */
vec_free (reg_equivs);
reg_equivs = NULL;
need_dce = false;
}
-
--[[gcc-8.3/gcc/timevar_push()]]
--[[gcc-8.3/gcc/loop_optimizer_finalize()]]
--[[gcc-8.3/gcc/free_dominance_info()]]
--[[gcc-8.3/gcc/FOR_ALL_BB_FN()]]
--[[gcc-8.3/gcc/ira_destroy()]]
--[[gcc-8.3/gcc/lra()]]
else
{
df_set_flags (DF_NO_INSN_RESCAN);
build_insn_chain ();
need_dce = reload (get_insns (), ira_conflicts_p);
}
-
--[[gcc-8.3/gcc/df_set_flags()]]
--[[gcc-8.3/gcc/build_insn_chain()]]
--[[gcc-8.3/gcc/reload()]]
--[[gcc-8.3/gcc/get_insns()]]
timevar_pop (TV_RELOAD);
timevar_push (TV_IRA);
if (ira_conflicts_p && ! ira_use_lra_p)
{
ira_free (ira_spilled_reg_stack_slots);
ira_finish_assign ();
}
-
--[[gcc-8.3/gcc/timevar_pop()]]
--[[gcc-8.3/gcc/timevar_push()]]
--[[gcc-8.3/gcc/ira_free()]]
--[[gcc-8.3/gcc/ira_finish_assign()]]
if (internal_flag_ira_verbose > 0 && ira_dump_file != ...
&& overall_cost_before != ira_overall_cost)
fprintf (ira_dump_file, "+++Overall after reload %" ...
ira_overall_cost);
flag_ira_share_spill_slots = saved_flag_ira_share_spil...
if (! ira_use_lra_p)
{
ira_destroy ();
if (current_loops != NULL)
{
loop_optimizer_finalize ();
free_dominance_info (CDI_DOMINATORS);
}
FOR_ALL_BB_FN (bb, cfun)
bb->loop_father = NULL;
current_loops = NULL;
regstat_free_ri ();
regstat_free_n_sets_and_refs ();
}
-
--[[gcc-8.3/gcc/ira_destroy()]]
--[[gcc-8.3/gcc/loop_optimizer_finalize()]]
--[[gcc-8.3/gcc/free_dominance_info()]]
--[[gcc-8.3/gcc/FOR_ALL_BB_FN()]]
--[[gcc-8.3/gcc/regstat_free_ri()]]
--[[gcc-8.3/gcc/regstat_free_n_sets_and_refs()]]
if (optimize)
cleanup_cfg (CLEANUP_EXPENSIVE);
finish_reg_equiv ();
bitmap_obstack_release (&ira_bitmap_obstack);
#ifndef IRA_NO_OBSTACK
obstack_free (&ira_obstack, NULL);
#endif
-
--[[gcc-8.3/gcc/cleanup_cfg()]]
--[[gcc-8.3/gcc/finish_reg_equiv()]]
--[[gcc-8.3/gcc/bitmap_obstack_release()]]
--[[gcc-8.3/gcc/obstack_free()]]
/* The code after the reload has changed so much that ...
we might as well just rescan everything. Note that
df_rescan_all_insns is not going to help here becau...
touch the artificial uses and defs. */
df_finish_pass (true);
df_scan_alloc (NULL);
df_scan_blocks ();
-
--[[gcc-8.3/gcc/df_finish_pass()]]
--[[gcc-8.3/gcc/df_scan_alloc()]]
--[[gcc-8.3/gcc/df_scan_blocks()]]
if (optimize > 1)
{
df_live_add_problem ();
df_live_set_all_dirty ();
}
if (optimize)
df_analyze ();
if (need_dce && optimize)
run_fast_dce ();
-
--[[gcc-8.3/gcc/df_live_add_problem()]]
--[[gcc-8.3/gcc/df_live_set_all_dirty()]]
--[[gcc-8.3/gcc/df_analyze()]]
--[[gcc-8.3/gcc/run_fast_dce()]]
/* Diagnose uses of the hard frame pointer when it is ...
register. Often we can get away with letting the u...
the frame pointer, but we should let them know when...
makes that impossible. */
if (global_regs[HARD_FRAME_POINTER_REGNUM] && frame_po...
{
tree decl = global_regs_decl[HARD_FRAME_POINTER_RE...
error_at (DECL_SOURCE_LOCATION (current_function_d...
"frame pointer required, but reserved");
inform (DECL_SOURCE_LOCATION (decl), "for %qD", de...
}
-
--[[gcc-8.3/gcc/DECL_SOURCE_LOCATION()]]
--[[gcc-8.3/gcc/error_at()]]
--[[gcc-8.3/gcc/inform()]]
/* If we are doing generic stack checking, give a warn...
function's frame size is larger than we expect. */
if (flag_stack_check == GENERIC_STACK_CHECK)
{
poly_int64 size = get_frame_size () + STACK_CHECK_...
for (int i = 0; i < FIRST_PSEUDO_REGISTER; i++)
if (df_regs_ever_live_p (i) && !fixed_regs[i] && call_u...
size += UNITS_PER_WORD;
if (constant_lower_bound (size) > STACK_CHECK_MAX_...
warning (0, "frame size too large for reliable stack ch...
}
if (pic_offset_table_regno != INVALID_REGNUM)
pic_offset_table_rtx = gen_rtx_REG (Pmode, pic_offse...
timevar_pop (TV_IRA);
}
-
--[[gcc-8.3/gcc/poly_int64]]
--[[gcc-8.3/gcc/get_frame_size()]]
--[[gcc-8.3/gcc/df_regs_ever_live_p()]]
--[[gcc-8.3/gcc/constant_lower_bound()]]
--[[gcc-8.3/gcc/warning()]]
--[[gcc-8.3/gcc/gen_rtx_REG()]]
*コメント [#e3c51cf5]
終了行:
*参照元 [#eccb1260]
#backlinks
*説明 [#zc6743cc]
-パス: [[gcc-8.3/gcc/ira.c]]
-FIXME: これは何？
--説明
**引数 [#edf61e8b]
-なし
**返り値 [#k2643966]
-なし
**参考 [#b4b33ad6]
*実装 [#me0992e9]
static void
do_reload (void)
{
basic_block bb;
bool need_dce;
unsigned pic_offset_table_regno = INVALID_REGNUM;
-
--[[gcc-8.3/gcc/basic_block]]
if (flag_ira_verbose < 10)
ira_dump_file = dump_file;
-
--[[gcc-8.3/gcc/ira_dump_file(global)]]
--[[gcc-8.3/gcc/dump_file(global)]]
/* If pic_offset_table_rtx is a pseudo register, then ...
after reload to avoid possible wrong usages of hard...
to it. */
if (pic_offset_table_rtx
&& REGNO (pic_offset_table_rtx) >= FIRST_PSEUDO_RE...
pic_offset_table_regno = REGNO (pic_offset_table_rtx);
-
--[[gcc-8.3/gcc/REG_NO()]]
timevar_push (TV_RELOAD);
if (ira_use_lra_p)
{
if (current_loops != NULL)
{
loop_optimizer_finalize ();
free_dominance_info (CDI_DOMINATORS);
}
FOR_ALL_BB_FN (bb, cfun)
bb->loop_father = NULL;
current_loops = NULL;
ira_destroy ();
lra (ira_dump_file);
/* ???!!! Move it before lra () when we use ira_re...
LRA. */
vec_free (reg_equivs);
reg_equivs = NULL;
need_dce = false;
}
-
--[[gcc-8.3/gcc/timevar_push()]]
--[[gcc-8.3/gcc/loop_optimizer_finalize()]]
--[[gcc-8.3/gcc/free_dominance_info()]]
--[[gcc-8.3/gcc/FOR_ALL_BB_FN()]]
--[[gcc-8.3/gcc/ira_destroy()]]
--[[gcc-8.3/gcc/lra()]]
else
{
df_set_flags (DF_NO_INSN_RESCAN);
build_insn_chain ();
need_dce = reload (get_insns (), ira_conflicts_p);
}
-
--[[gcc-8.3/gcc/df_set_flags()]]
--[[gcc-8.3/gcc/build_insn_chain()]]
--[[gcc-8.3/gcc/reload()]]
--[[gcc-8.3/gcc/get_insns()]]
timevar_pop (TV_RELOAD);
timevar_push (TV_IRA);
if (ira_conflicts_p && ! ira_use_lra_p)
{
ira_free (ira_spilled_reg_stack_slots);
ira_finish_assign ();
}
-
--[[gcc-8.3/gcc/timevar_pop()]]
--[[gcc-8.3/gcc/timevar_push()]]
--[[gcc-8.3/gcc/ira_free()]]
--[[gcc-8.3/gcc/ira_finish_assign()]]
if (internal_flag_ira_verbose > 0 && ira_dump_file != ...
&& overall_cost_before != ira_overall_cost)
fprintf (ira_dump_file, "+++Overall after reload %" ...
ira_overall_cost);
flag_ira_share_spill_slots = saved_flag_ira_share_spil...
if (! ira_use_lra_p)
{
ira_destroy ();
if (current_loops != NULL)
{
loop_optimizer_finalize ();
free_dominance_info (CDI_DOMINATORS);
}
FOR_ALL_BB_FN (bb, cfun)
bb->loop_father = NULL;
current_loops = NULL;
regstat_free_ri ();
regstat_free_n_sets_and_refs ();
}
-
--[[gcc-8.3/gcc/ira_destroy()]]
--[[gcc-8.3/gcc/loop_optimizer_finalize()]]
--[[gcc-8.3/gcc/free_dominance_info()]]
--[[gcc-8.3/gcc/FOR_ALL_BB_FN()]]
--[[gcc-8.3/gcc/regstat_free_ri()]]
--[[gcc-8.3/gcc/regstat_free_n_sets_and_refs()]]
if (optimize)
cleanup_cfg (CLEANUP_EXPENSIVE);
finish_reg_equiv ();
bitmap_obstack_release (&ira_bitmap_obstack);
#ifndef IRA_NO_OBSTACK
obstack_free (&ira_obstack, NULL);
#endif
-
--[[gcc-8.3/gcc/cleanup_cfg()]]
--[[gcc-8.3/gcc/finish_reg_equiv()]]
--[[gcc-8.3/gcc/bitmap_obstack_release()]]
--[[gcc-8.3/gcc/obstack_free()]]
/* The code after the reload has changed so much that ...
we might as well just rescan everything. Note that
df_rescan_all_insns is not going to help here becau...
touch the artificial uses and defs. */
df_finish_pass (true);
df_scan_alloc (NULL);
df_scan_blocks ();
-
--[[gcc-8.3/gcc/df_finish_pass()]]
--[[gcc-8.3/gcc/df_scan_alloc()]]
--[[gcc-8.3/gcc/df_scan_blocks()]]
if (optimize > 1)
{
df_live_add_problem ();
df_live_set_all_dirty ();
}
if (optimize)
df_analyze ();
if (need_dce && optimize)
run_fast_dce ();
-
--[[gcc-8.3/gcc/df_live_add_problem()]]
--[[gcc-8.3/gcc/df_live_set_all_dirty()]]
--[[gcc-8.3/gcc/df_analyze()]]
--[[gcc-8.3/gcc/run_fast_dce()]]
/* Diagnose uses of the hard frame pointer when it is ...
register. Often we can get away with letting the u...
the frame pointer, but we should let them know when...
makes that impossible. */
if (global_regs[HARD_FRAME_POINTER_REGNUM] && frame_po...
{
tree decl = global_regs_decl[HARD_FRAME_POINTER_RE...
error_at (DECL_SOURCE_LOCATION (current_function_d...
"frame pointer required, but reserved");
inform (DECL_SOURCE_LOCATION (decl), "for %qD", de...
}
-
--[[gcc-8.3/gcc/DECL_SOURCE_LOCATION()]]
--[[gcc-8.3/gcc/error_at()]]
--[[gcc-8.3/gcc/inform()]]
/* If we are doing generic stack checking, give a warn...
function's frame size is larger than we expect. */
if (flag_stack_check == GENERIC_STACK_CHECK)
{
poly_int64 size = get_frame_size () + STACK_CHECK_...
for (int i = 0; i < FIRST_PSEUDO_REGISTER; i++)
if (df_regs_ever_live_p (i) && !fixed_regs[i] && call_u...
size += UNITS_PER_WORD;
if (constant_lower_bound (size) > STACK_CHECK_MAX_...
warning (0, "frame size too large for reliable stack ch...
}
if (pic_offset_table_regno != INVALID_REGNUM)
pic_offset_table_rtx = gen_rtx_REG (Pmode, pic_offse...
timevar_pop (TV_IRA);
}
-
--[[gcc-8.3/gcc/poly_int64]]
--[[gcc-8.3/gcc/get_frame_size()]]
--[[gcc-8.3/gcc/df_regs_ever_live_p()]]
--[[gcc-8.3/gcc/constant_lower_bound()]]
--[[gcc-8.3/gcc/warning()]]
--[[gcc-8.3/gcc/gen_rtx_REG()]]
*コメント [#e3c51cf5]
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