src/cpu/sparc/vm/interp_masm_sparc.cpp

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2017, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.

@@ -794,19 +794,38 @@
   // word index to byte offset. Since this is a java object, it can be compressed
   Register tmp = index;  // reuse
   sll(index, LogBytesPerHeapOop, tmp);
   get_constant_pool(result);
   // load pointer for resolved_references[] objArray
-  ld_ptr(result, ConstantPool::resolved_references_offset_in_bytes(), result);
+  ld_ptr(result, ConstantPool::cache_offset_in_bytes(), result);
+  ld_ptr(result, ConstantPoolCache::resolved_references_offset_in_bytes(), result);
   // JNIHandles::resolve(result)
   ld_ptr(result, 0, result);
   // Add in the index
   add(result, tmp, result);
   load_heap_oop(result, arrayOopDesc::base_offset_in_bytes(T_OBJECT), result);
 }
 
 
+// load cpool->resolved_klass_at(index)
+void InterpreterMacroAssembler::load_resolved_klass_at_offset(Register Rcpool,
+                                           Register Roffset, Register Rklass) {
+  // int value = *this_cp->int_at_addr(which);
+  // int resolved_klass_index = extract_low_short_from_int(value);
+  //
+  // Because SPARC is big-endian, the low_short is at (cpool->int_at_addr(which) + 2 bytes)
+  add(Roffset, Rcpool, Roffset);
+  lduh(Roffset, sizeof(ConstantPool) + 2, Roffset);  // Roffset = resolved_klass_index
+
+  Register Rresolved_klasses = Rklass;
+  ld_ptr(Rcpool, ConstantPool::resolved_klasses_offset_in_bytes(), Rresolved_klasses);
+  sll(Roffset, LogBytesPerWord, Roffset); 
+  add(Roffset, Array<Klass*>::base_offset_in_bytes(), Roffset);
+  ld_ptr(Rresolved_klasses, Roffset, Rklass);
+}
+
+
 // Generate a subtype check: branch to ok_is_subtype if sub_klass is
 // a subtype of super_klass.  Blows registers Rsuper_klass, Rsub_klass, tmp1, tmp2.
 void InterpreterMacroAssembler::gen_subtype_check(Register Rsub_klass,
                                                   Register Rsuper_klass,
                                                   Register Rtmp1,