--- old/src/cpu/sparc/vm/c1_CodeStubs_sparc.cpp	Wed Mar 23 09:37:29 2011
+++ new/src/cpu/sparc/vm/c1_CodeStubs_sparc.cpp	Wed Mar 23 09:37:29 2011
@@ -301,7 +301,7 @@
     // thread.
     assert(_obj != noreg, "must be a valid register");
     assert(_oop_index >= 0, "must have oop index");
-    __ ld_ptr(_obj, java_lang_Class::klass_offset_in_bytes(), G3);
+    __ load_heap_oop(_obj, java_lang_Class::klass_offset_in_bytes(), G3);
     __ ld_ptr(G3, instanceKlass::init_thread_offset_in_bytes() + sizeof(klassOopDesc), G3);
     __ cmp(G2_thread, G3);
     __ br(Assembler::notEqual, false, Assembler::pn, call_patch);