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[gdb/symtab] Use parallel_for_each in process_queue

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Do the parallelization.
This commit is contained in:
Tom de Vries
2022-07-15 12:42:31 +02:00
parent 3f7397885b
commit 060f7c545b
1 changed files with 26 additions and 5 deletions
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31
gdb/dwarf2/read.c
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@@ -7621,15 +7621,36 @@ process_queue (dwarf2_per_objfile *per_objfile)
dwarf_read_debug_printf ("Expanding one or more symtabs of objfile %s ...",
objfile_name (per_objfile->objfile));
using iter_type = decltype (per_objfile->queue->begin ());
using result_type = int;
/* The queue starts out with one item, but following a DIE reference
may load a new CU, adding it to the end of the queue. */
while (!per_objfile->queue->empty ())
{
dwarf2_queue_item &item = per_objfile->queue->front ();
process_queue_item (per_objfile, item);
dwarf2_per_cu_data *per_cu = item.per_cu;
per_cu->queued = 0;
per_objfile->queue->pop_front ();
size_t nr_to_be_processed = per_objfile->queue->size ();
std::vector<result_type> results
= gdb::parallel_for_each (1, per_objfile->queue->begin (),
per_objfile->queue->end (),
[=] (iter_type iter, iter_type end)
{
for (; iter != end; ++iter)
{
dwarf2_queue_item &item = *iter;
process_queue_item (per_objfile, item);
}
return result_type (1);
});
for (int i = 0; i < nr_to_be_processed; ++i)
{
dwarf2_queue_item &item = per_objfile->queue->front ();
dwarf2_per_cu_data *per_cu = item.per_cu;
per_cu->queued = 0;
per_objfile->queue->pop_front ();
}
}
dwarf_read_debug_printf ("Done expanding symtabs of %s.",