Lines Matching defs:top
272 // The value NULL is reserved for the top node only.
533 // Call this when changing the top node, to reassert the invariants
536 if (this == (Node*)Compile::current()->top()) {
537 // This node has just become top. Kill its out array.
539 _out = NULL; // marker value for top
540 assert(is_top(), "must be top");
543 assert(!is_top(), "must not be top");
662 assert(!is_top(), "cannot grow a top node's out array");
1226 Node *top = igvn->C->top();
1240 use->set_req(0, top); // Cut dead edge to prevent processing
1245 use->set_req(j, top);
1269 dead->set_req(i, top); // Smash input away
1708 // do not recurse through top or the root (would reach unrelated stuff)