src/hotspot/share/opto/loopnode.cpp

@@ -1591,16 +1591,22 @@
     if (stride > 0) {
       new_limit = igvn->transform(new AddINode(min, iv_phi));
     } else {
       new_limit = igvn->transform(new SubINode(iv_phi, min));
     }
-    Node* cmp = inner_cle->cmp_node()->clone();
-    igvn->replace_input_of(cmp, 2, new_limit);
-    Node* bol = inner_cle->in(CountedLoopEndNode::TestValue)->clone();
-    cmp->set_req(2, limit);
-    bol->set_req(1, igvn->transform(cmp));
-    igvn->replace_input_of(outer_loop_end(), 1, igvn->transform(bol));
+    Node* inner_cmp = inner_cle->cmp_node();
+    Node* outer_cmp = inner_cmp;
+    Node* inner_bol = inner_cle->in(CountedLoopEndNode::TestValue);
+    Node* outer_bol = inner_bol;
+    // cmp node for inner loop may be shared
+    inner_cmp = inner_cmp->clone();
+    inner_cmp->set_req(2, new_limit);
+    inner_bol = inner_bol->clone();
+    inner_bol->set_req(1, igvn->transform(inner_cmp));
+    igvn->replace_input_of(inner_cle, CountedLoopEndNode::TestValue, igvn->transform(inner_bol));
+    // Set the outer loop's exit condition too
+    igvn->replace_input_of(outer_loop_end(), 1, outer_bol);
   } else {
     assert(false, "should be able to adjust outer loop");
     IfNode* outer_le = outer_loop_end();
     Node* iff = igvn->transform(new IfNode(outer_le->in(0), outer_le->in(1), outer_le->_prob, outer_le->_fcnt));
     igvn->replace_node(outer_le, iff);