From 00fbc6964b2f2cd4ae67957ada52e2b0bfd009c8 Mon Sep 17 00:00:00 2001
From: roland <unknown>
Date: Thu, 26 Jan 2012 09:38:28 +0100
Subject: [PATCH] 7123910: Some CTW tests crash VM: is_loaded() &&
 that->is_loaded() Summary: handle not loaded array klass in
 Parse::do_checkcast(). Reviewed-by: kvn, never

---
 src/share/vm/opto/parseHelper.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/share/vm/opto/parseHelper.cpp b/src/share/vm/opto/parseHelper.cpp
index 9ebc716b5..26a146f5e 100644
--- a/src/share/vm/opto/parseHelper.cpp
+++ b/src/share/vm/opto/parseHelper.cpp
@@ -71,14 +71,14 @@ void Parse::do_checkcast() {
   // Throw uncommon trap if class is not loaded or the value we are casting
   // _from_ is not loaded, and value is not null.  If the value _is_ NULL,
   // then the checkcast does nothing.
-  const TypeInstPtr *tp = _gvn.type(obj)->isa_instptr();
-  if (!will_link || (tp && !tp->is_loaded())) {
+  const TypeOopPtr *tp = _gvn.type(obj)->isa_oopptr();
+  if (!will_link || (tp && tp->klass() && !tp->klass()->is_loaded())) {
     if (C->log() != NULL) {
       if (!will_link) {
         C->log()->elem("assert_null reason='checkcast' klass='%d'",
                        C->log()->identify(klass));
       }
-      if (tp && !tp->is_loaded()) {
+      if (tp && tp->klass() && !tp->klass()->is_loaded()) {
         // %%% Cannot happen?
         C->log()->elem("assert_null reason='checkcast source' klass='%d'",
                        C->log()->identify(tp->klass()));
-- 
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