nv50/ir: Allow inserting isolated nodes to a graph.

diff --git a/src/gallium/drivers/nv50/codegen/nv50_ir_graph.cpp b/src/gallium/drivers/nv50/codegen/nv50_ir_graph.cpp
index 2c64a140f513eb4de7f60e010896d0eb01a41c76..b1287001c37e18ca8a0865e305e94b9c5ab29c39 100644 (file)
--- a/src/gallium/drivers/nv50/codegen/nv50_ir_graph.cpp
+++ b/src/gallium/drivers/nv50/codegen/nv50_ir_graph.cpp
@@ -43,13 +43,11 @@ Graph::~Graph()
 
 void Graph::insert(Node *node)
 {
-   if (!root) {
+   if (!root)
       root = node;
-      size = 1;
-      node->graph = this;
-   } else {
-      root->attach(node, Edge::TREE);
-   }
+
+   node->graph = this;
+   size++;
 }
 
 void Graph::Edge::unlink()