diff options
Diffstat (limited to 'gcc/dwarf2out.c')
| -rw-r--r-- | gcc/dwarf2out.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c index 7e64b37f52a..ca179674632 100644 --- a/gcc/dwarf2out.c +++ b/gcc/dwarf2out.c @@ -6477,6 +6477,7 @@ static void output_loc_list (dw_loc_list_ref); static char *gen_internal_sym (const char *); static void prune_unmark_dies (dw_die_ref); +static void prune_unused_types_mark_generic_parms_dies (dw_die_ref); static void prune_unused_types_mark (dw_die_ref, int); static void prune_unused_types_walk (dw_die_ref); static void prune_unused_types_walk_attribs (dw_die_ref); @@ -22245,6 +22246,32 @@ prune_unused_types_walk_attribs (dw_die_ref die) } } +/* Mark the generic parameters and arguments children DIEs of DIE. */ + +static void +prune_unused_types_mark_generic_parms_dies (dw_die_ref die) +{ + dw_die_ref c; + + if (die == NULL || die->die_child == NULL) + return; + c = die->die_child; + do + { + switch (c->die_tag) + { + case DW_TAG_template_type_param: + case DW_TAG_template_value_param: + case DW_TAG_GNU_template_template_param: + case DW_TAG_GNU_template_parameter_pack: + prune_unused_types_mark (c, 1); + break; + default: + break; + } + c = c->die_sib; + } while (c && c != die->die_child); +} /* Mark DIE as being used. If DOKIDS is true, then walk down to DIE's children. */ @@ -22258,6 +22285,10 @@ prune_unused_types_mark (dw_die_ref die, int dokids) { /* We haven't done this node yet. Mark it as used. */ die->die_mark = 1; + /* If this is the DIE of a generic type instantiation, + mark the children DIEs that describe its generic parms and + args. */ + prune_unused_types_mark_generic_parms_dies (die); /* We also have to mark its parents as used. (But we don't want to mark our parents' kids due to this.) */ |