re PR debug/78191 (ICE in calc_die_sizes)
* dwarf2out.c (size_of_discr_list): Fix typo in function comment. PR debug/78191 * dwarf2out.c (abbrev_opt_base_type_end): New variable. (die_abbrev_cmp): Sort dies with die_abbrev smaller than abbrev_opt_base_type_end only by increasing die_abbrev, before any other dies. (optimize_abbrev_table): Don't change abbrev numbers of base types and CU or optimize implicit consts in them if calc_base_type_die_sizes has been called during build_abbrev_table. (calc_base_type_die_sizes): If abbrev_opt_start, set abbrev_opt_base_type_end to one plus largest base type's die_abbrev. From-SVN: r242606
This commit is contained in:
parent
57d7fe867c
commit
33305b74b7
|
@ -1,3 +1,19 @@
|
|||
2016-11-18 Jakub Jelinek <jakub@redhat.com>
|
||||
|
||||
* dwarf2out.c (size_of_discr_list): Fix typo in function comment.
|
||||
|
||||
PR debug/78191
|
||||
* dwarf2out.c (abbrev_opt_base_type_end): New variable.
|
||||
(die_abbrev_cmp): Sort dies with die_abbrev smaller than
|
||||
abbrev_opt_base_type_end only by increasing die_abbrev, before
|
||||
any other dies.
|
||||
(optimize_abbrev_table): Don't change abbrev numbers of
|
||||
base types and CU or optimize implicit consts in them if
|
||||
calc_base_type_die_sizes has been called during build_abbrev_table.
|
||||
(calc_base_type_die_sizes): If abbrev_opt_start, set
|
||||
abbrev_opt_base_type_end to one plus largest base type's
|
||||
die_abbrev.
|
||||
|
||||
2016-11-18 Jeff Law <law@redhat.com>
|
||||
|
||||
PR target/25112
|
||||
|
|
|
@ -1911,7 +1911,7 @@ size_of_discr_value (dw_discr_value *discr_value)
|
|||
return size_of_sleb128 (discr_value->v.sval);
|
||||
}
|
||||
|
||||
/* Return the size of the value in a DW_discr_list attribute. */
|
||||
/* Return the size of the value in a DW_AT_discr_list attribute. */
|
||||
|
||||
static int
|
||||
size_of_discr_list (dw_discr_list_ref discr_list)
|
||||
|
@ -8550,6 +8550,11 @@ optimize_external_refs (dw_die_ref die)
|
|||
/* First abbrev_id that can be optimized based on usage. */
|
||||
static unsigned int abbrev_opt_start;
|
||||
|
||||
/* Maximum abbrev_id of a base type plus one (we can't optimize DIEs with
|
||||
abbrev_id smaller than this, because they must be already sized
|
||||
during build_abbrev_table). */
|
||||
static unsigned int abbrev_opt_base_type_end;
|
||||
|
||||
/* Vector of usage counts during build_abbrev_table. Indexed by
|
||||
abbrev_id - abbrev_opt_start. */
|
||||
static vec<unsigned int> abbrev_usage_count;
|
||||
|
@ -8648,12 +8653,16 @@ die_abbrev_cmp (const void *p1, const void *p2)
|
|||
gcc_checking_assert (die1->die_abbrev >= abbrev_opt_start);
|
||||
gcc_checking_assert (die2->die_abbrev >= abbrev_opt_start);
|
||||
|
||||
if (abbrev_usage_count[die1->die_abbrev - abbrev_opt_start]
|
||||
> abbrev_usage_count[die2->die_abbrev - abbrev_opt_start])
|
||||
return -1;
|
||||
if (abbrev_usage_count[die1->die_abbrev - abbrev_opt_start]
|
||||
< abbrev_usage_count[die2->die_abbrev - abbrev_opt_start])
|
||||
return 1;
|
||||
if (die1->die_abbrev >= abbrev_opt_base_type_end
|
||||
&& die2->die_abbrev >= abbrev_opt_base_type_end)
|
||||
{
|
||||
if (abbrev_usage_count[die1->die_abbrev - abbrev_opt_start]
|
||||
> abbrev_usage_count[die2->die_abbrev - abbrev_opt_start])
|
||||
return -1;
|
||||
if (abbrev_usage_count[die1->die_abbrev - abbrev_opt_start]
|
||||
< abbrev_usage_count[die2->die_abbrev - abbrev_opt_start])
|
||||
return 1;
|
||||
}
|
||||
|
||||
/* Stabilize the sort. */
|
||||
if (die1->die_abbrev < die2->die_abbrev)
|
||||
|
@ -8731,10 +8740,12 @@ optimize_abbrev_table (void)
|
|||
sorted_abbrev_dies.qsort (die_abbrev_cmp);
|
||||
|
||||
unsigned int abbrev_id = abbrev_opt_start - 1;
|
||||
unsigned int first_id = 0;
|
||||
unsigned int first_id = ~0U;
|
||||
unsigned int last_abbrev_id = 0;
|
||||
unsigned int i;
|
||||
dw_die_ref die;
|
||||
if (abbrev_opt_base_type_end > abbrev_opt_start)
|
||||
abbrev_id = abbrev_opt_base_type_end - 1;
|
||||
/* Reassign abbreviation ids from abbrev_opt_start above, so that
|
||||
most commonly used abbreviations come first. */
|
||||
FOR_EACH_VEC_ELT (sorted_abbrev_dies, i, die)
|
||||
|
@ -8742,10 +8753,15 @@ optimize_abbrev_table (void)
|
|||
dw_attr_node *a;
|
||||
unsigned ix;
|
||||
|
||||
/* If calc_base_type_die_sizes has been called, the CU and
|
||||
base types after it can't be optimized, because we've already
|
||||
calculated their DIE offsets. We've sorted them first. */
|
||||
if (die->die_abbrev < abbrev_opt_base_type_end)
|
||||
continue;
|
||||
if (die->die_abbrev != last_abbrev_id)
|
||||
{
|
||||
last_abbrev_id = die->die_abbrev;
|
||||
if (dwarf_version >= 5 && i)
|
||||
if (dwarf_version >= 5 && first_id != ~0U)
|
||||
optimize_implicit_const (first_id, i, implicit_consts);
|
||||
abbrev_id++;
|
||||
(*abbrev_die_table)[abbrev_id] = die;
|
||||
|
@ -8785,11 +8801,12 @@ optimize_abbrev_table (void)
|
|||
die->die_abbrev = abbrev_id;
|
||||
}
|
||||
gcc_assert (abbrev_id == vec_safe_length (abbrev_die_table) - 1);
|
||||
if (dwarf_version >= 5)
|
||||
if (dwarf_version >= 5 && first_id != ~0U)
|
||||
optimize_implicit_const (first_id, i, implicit_consts);
|
||||
}
|
||||
|
||||
abbrev_opt_start = 0;
|
||||
abbrev_opt_base_type_end = 0;
|
||||
abbrev_usage_count.release ();
|
||||
sorted_abbrev_dies.release ();
|
||||
}
|
||||
|
@ -9043,6 +9060,9 @@ calc_base_type_die_sizes (void)
|
|||
&& base_type->die_abbrev);
|
||||
prev = base_type;
|
||||
#endif
|
||||
if (abbrev_opt_start
|
||||
&& base_type->die_abbrev >= abbrev_opt_base_type_end)
|
||||
abbrev_opt_base_type_end = base_type->die_abbrev + 1;
|
||||
base_type->die_offset = die_offset;
|
||||
die_offset += size_of_die (base_type);
|
||||
}
|
||||
|
|
Loading…
Reference in New Issue