src/share/vm/opto/lcm.cpp

@@ -415,12 +415,20 @@
   map_node_to_block(nul_chk, block);
   // Redirect users of old_test to nul_chk
   for (DUIterator_Last i2min, i2 = old_tst->last_outs(i2min); i2 >= i2min; --i2)
     old_tst->last_out(i2)->set_req(0, nul_chk);
   // Clean-up any dead code
-  for (uint i3 = 0; i3 < old_tst->req(); i3++)
+  for (uint i3 = 0; i3 < old_tst->req(); i3++) {
+    Node* req = old_tst->in(i3);
     old_tst->set_req(i3, NULL);
+    if (req->outcnt() == 0) {
+      // Remove dead input node
+      req->disconnect_inputs(NULL, C);
+      block->find_remove(req);
+    }
+  }
+
 
   latency_from_uses(nul_chk);
   latency_from_uses(best);
 }