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re PR rtl-optimization/58960 (ICE in bmp_iter_set_init)

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PR rtl-optimization/58960
        * haifa-sched.c (alloc_global_sched_pressure_data): New,
        factored out from ...
        (sched_init): ... here.
        (free_global_sched_pressure_data): New, factored out from ...
        (sched_finish): ... here.
        * sched-int.h (free_global_sched_pressure_data): Declare.
        * sched-rgn.c (nr_regions_initial): New static global.
        (haifa_find_rgns): Initialize it.
        (schedule_region): Disable sched-pressure for the newly
        generated regions.

From-SVN: r207832
This commit is contained in:
Andrey Belevantsev 2014-02-18 09:41:29 +04:00 committed by Andrey Belevantsev
parent 877ae087f4
commit c4cd7435e4
4 changed files with 78 additions and 35 deletions

14
gcc/ChangeLog

@ -1,3 +1,17 @@
2014-02-18 Andrey Belevantsev <abel@ispras.ru>
PR rtl-optimization/58960
* haifa-sched.c (alloc_global_sched_pressure_data): New,
factored out from ...
(sched_init): ... here.
(free_global_sched_pressure_data): New, factored out from ...
(sched_finish): ... here.
* sched-int.h (free_global_sched_pressure_data): Declare.
* sched-rgn.c (nr_regions_initial): New static global.
(haifa_find_rgns): Initialize it.
(schedule_region): Disable sched-pressure for the newly
generated regions.
2014-02-17 Richard Biener <rguenther@suse.de>
* tree-vect-stmts.c (free_stmt_vec_info): Clear BB and

85
gcc/haifa-sched.c

@ -6553,6 +6553,54 @@ setup_sched_dump (void)
? stderr : dump_file);
}
/* Allocate data for register pressure sensitive scheduling. */
static void
alloc_global_sched_pressure_data (void)
{
if (sched_pressure != SCHED_PRESSURE_NONE)
{
int i, max_regno = max_reg_num ();
if (sched_dump != NULL)
/* We need info about pseudos for rtl dumps about pseudo
classes and costs. */
regstat_init_n_sets_and_refs ();
ira_set_pseudo_classes (true, sched_verbose ? sched_dump : NULL);
sched_regno_pressure_class
= (enum reg_class *) xmalloc (max_regno * sizeof (enum reg_class));
for (i = 0; i < max_regno; i++)
sched_regno_pressure_class[i]
= (i < FIRST_PSEUDO_REGISTER
? ira_pressure_class_translate[REGNO_REG_CLASS (i)]
: ira_pressure_class_translate[reg_allocno_class (i)]);
curr_reg_live = BITMAP_ALLOC (NULL);
if (sched_pressure == SCHED_PRESSURE_WEIGHTED)
{
saved_reg_live = BITMAP_ALLOC (NULL);
region_ref_regs = BITMAP_ALLOC (NULL);
}
}
}
/* Free data for register pressure sensitive scheduling. Also called
from schedule_region when stopping sched-pressure early. */
void
free_global_sched_pressure_data (void)
{
if (sched_pressure != SCHED_PRESSURE_NONE)
{
if (regstat_n_sets_and_refs != NULL)
regstat_free_n_sets_and_refs ();
if (sched_pressure == SCHED_PRESSURE_WEIGHTED)
{
BITMAP_FREE (region_ref_regs);
BITMAP_FREE (saved_reg_live);
}
BITMAP_FREE (curr_reg_live);
free (sched_regno_pressure_class);
}
}
/* Initialize some global state for the scheduler. This function works
with the common data shared between all the schedulers. It is called
from the scheduler specific initialization routine. */
@ -6656,29 +6704,7 @@ sched_init (void)
if (targetm.sched.init_global)
targetm.sched.init_global (sched_dump, sched_verbose, get_max_uid () + 1);
if (sched_pressure != SCHED_PRESSURE_NONE)
{
int i, max_regno = max_reg_num ();
if (sched_dump != NULL)
/* We need info about pseudos for rtl dumps about pseudo
classes and costs. */
regstat_init_n_sets_and_refs ();
ira_set_pseudo_classes (true, sched_verbose ? sched_dump : NULL);
sched_regno_pressure_class
= (enum reg_class *) xmalloc (max_regno * sizeof (enum reg_class));
for (i = 0; i < max_regno; i++)
sched_regno_pressure_class[i]
= (i < FIRST_PSEUDO_REGISTER
? ira_pressure_class_translate[REGNO_REG_CLASS (i)]
: ira_pressure_class_translate[reg_allocno_class (i)]);
curr_reg_live = BITMAP_ALLOC (NULL);
if (sched_pressure == SCHED_PRESSURE_WEIGHTED)
{
saved_reg_live = BITMAP_ALLOC (NULL);
region_ref_regs = BITMAP_ALLOC (NULL);
}
}
alloc_global_sched_pressure_data ();
curr_state = xmalloc (dfa_state_size);
}
@ -6777,18 +6803,7 @@ void
sched_finish (void)
{
haifa_finish_h_i_d ();
if (sched_pressure != SCHED_PRESSURE_NONE)
{
if (regstat_n_sets_and_refs != NULL)
regstat_free_n_sets_and_refs ();
if (sched_pressure == SCHED_PRESSURE_WEIGHTED)
{
BITMAP_FREE (region_ref_regs);
BITMAP_FREE (saved_reg_live);
}
BITMAP_FREE (curr_reg_live);
free (sched_regno_pressure_class);
}
free_global_sched_pressure_data ();
free (curr_state);
if (targetm.sched.finish_global)

1
gcc/sched-int.h

@ -1340,6 +1340,7 @@ extern void debug_ds (ds_t);
extern void initialize_live_range_shrinkage (void);
extern void finish_live_range_shrinkage (void);
extern void sched_init_region_reg_pressure_info (void);
extern void free_global_sched_pressure_data (void);
extern int haifa_classify_insn (const_rtx);
extern void get_ebb_head_tail (basic_block, basic_block, rtx *, rtx *);
extern int no_real_insns_p (const_rtx, const_rtx);

13
gcc/sched-rgn.c

@ -79,6 +79,9 @@ static int is_cfg_nonregular (void);
/* Number of regions in the procedure. */
int nr_regions = 0;
/* Same as above before adding any new regions. */
static int nr_regions_initial = 0;
/* Table of region descriptions. */
region *rgn_table = NULL;
@ -1064,6 +1067,7 @@ haifa_find_rgns (void)
BLOCK_TO_BB (bb->index) = 0;
}
nr_regions_initial = nr_regions;
free (max_hdr);
free (degree);
free (stack);
@ -2991,6 +2995,15 @@ schedule_region (int rgn)
rgn_n_insns = 0;
/* Do not support register pressure sensitive scheduling for the new regions
as we don't update the liveness info for them. */
if (rgn >= nr_regions_initial)
{
if (sched_pressure != SCHED_PRESSURE_NONE)
free_global_sched_pressure_data ();
sched_pressure = SCHED_PRESSURE_NONE;
}
rgn_setup_region (rgn);
/* Don't schedule region that is marked by