[PATCH 20/22] Don't try to reduce NG from dominators

[Jørgen Kvalsvik]

The presence of gotos already makes this iffy, but it is already not
necessary as reducing by refining the G should cover it.
---
 gcc/tree-profile.cc | 19 -------------------
 1 file changed, 19 deletions(-)

diff --git a/gcc/tree-profile.cc b/gcc/tree-profile.cc
index f329be84ad2..d1d7265cd1c 100644
--- a/gcc/tree-profile.cc
+++ b/gcc/tree-profile.cc
@@ -788,25 +788,6 @@ isolate_expression (conds_ctx &ctx, basic_block p, 
vec<basic_block>& out)
        gcc_assert (bitmap_count_bits (expr) > 2);
        bitmap_copy (prev, expr);
 
-       const unsigned NGlen = NG.length ();
-       for (unsigned i = 0; i != NGlen - 1; i++)
-       {
-           for (unsigned j = i+1; j != NGlen; j++)
-           {
-               basic_block b = nearest_common_dominator (CDI_DOMINATORS, 
NG[i], NG[j]);
-               if (ctx.index_map[b->index] > ctx.index_map[p->index])
-               {
-                   bitmap_clear_bit (expr, NG[i]->index);
-                   bitmap_clear_bit (expr, NG[j]->index);
-                   bitmap_set_bit (expr, b->index);
-                   NG.safe_push (b);
-               }
-           }
-       }
-       for (unsigned i = 0; i != NG.length (); i++)
-           if (!bitmap_bit_p (expr, NG[i]->index))
-               NG.unordered_remove (i--);
-
        bitmap_copy (expr, reachable);
        for (const basic_block neighbor : NG)
        {
-- 
2.30.2