src/share/vm/opto/phaseX.cpp

rev 8049 : castpp gcm
rev 10220 : 8148786: xml.tranform fails on x86-64
Summary: CCP computes wrong type for CountedLoop iv Phi
Reviewed-by:

*** 1712,1721 ****
--- 1712,1738 ----
                  worklist.push(p); // Propagate change to user
                }
              }
            }
          }
+         // If n is used in a counted loop exit condition then the type
+         // of the counted loop's Phi depends on the type of n. See
+         // PhiNode::Value().
+         if (m_op == Op_CmpI) {
+           if (m->outcnt() > 0) {
+             Node* bol = m->raw_out(0);
+             if (bol->outcnt() > 0) {
+               Node* iff = bol->raw_out(0);
+               if (iff->is_CountedLoopEnd()) {
+                 CountedLoopEndNode* cle = iff->as_CountedLoopEnd();
+                 if (cle->limit() == n && cle->phi() != NULL) {
+                   worklist.push(cle->phi());
+                 }
+               }
+             }
+           }
+         }
        }
      }
    }
  }