Back out some parallel_for_each features

Now that the DWARF reader does not use parallel_for_each, we can
remove some of the features that were added just for it: return values
and task sizing.

The thread_pool typed tasks feature could also be removed, but I
haven't done so here.  This one seemed less intrusive and perhaps more
likely to be needed at some point.

1 files changed, 0 insertions, 47 deletions

diff --git a/gdb/unittests/parallel-for-selftests.c b/gdb/unittests/parallel-for-selftests.c
index 63e9512..a957b2d 100644
--- a/gdb/unittests/parallel-for-selftests.c
+++ b/gdb/unittests/parallel-for-selftests.c
@@ -120,34 +120,6 @@ TEST (int n_threads)
 	    });
   SELF_CHECK (counter == 0);
 
-  auto task_size_max_ = [] (int iter)
-    {
-      return (size_t)SIZE_MAX;
-    };
-  auto task_size_max = gdb::make_function_view (task_size_max_);
-
-  counter = 0;
-  FOR_EACH (1, 0, NUMBER,
-	    [&] (int start, int end)
-	    {
-	      counter += end - start;
-	    }, task_size_max);
-  SELF_CHECK (counter == NUMBER);
-
-  auto task_size_one_ = [] (int iter)
-    {
-      return (size_t)1;
-    };
-  auto task_size_one = gdb::make_function_view (task_size_one_);
-
-  counter = 0;
-  FOR_EACH (1, 0, NUMBER,
-	    [&] (int start, int end)
-	    {
-	      counter += end - start;
-	    }, task_size_one);
-  SELF_CHECK (counter == NUMBER);
-
 #undef NUMBER
 
   /* Check that if there are fewer tasks than threads, then we won't
@@ -169,25 +141,6 @@ TEST (int n_threads)
 			     {
 			       return entry != nullptr;
 			     }));
-
-  /* The same but using the task size parameter.  */
-  intresults.clear ();
-  any_empty_tasks = false;
-  FOR_EACH (1, 0, 1,
-	    [&] (int start, int end)
-	      {
-		if (start == end)
-		  any_empty_tasks = true;
-		return std::make_unique<int> (end - start);
-	      },
-	    task_size_one);
-  SELF_CHECK (!any_empty_tasks);
-  SELF_CHECK (std::all_of (intresults.begin (),
-			   intresults.end (),
-			   [] (const std::unique_ptr<int> &entry)
-			     {
-			       return entry != nullptr;
-			     }));
 }
 
 #endif /* FOR_EACH */