src/cpu/x86/vm/jniFastGetField_x86_32.cpp

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2004, 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.

@@ -83,10 +83,13 @@
                                               // rdx is data dependent on rcx.
   } else {
     __ movptr (rdx, Address(rsp, 2*wordSize));  // obj
   }
   __ movptr(rax, Address(rsp, 3*wordSize));  // jfieldID
+
+  __ clear_jweak_tag(rdx);
+
   __ movptr(rdx, Address(rdx, 0));           // *obj
   __ shrptr (rax, 2);                         // offset
 
   assert(count < LIST_CAPACITY, "LIST_CAPACITY too small");
   speculative_load_pclist[count] = __ pc();

@@ -200,10 +203,13 @@
                                               // rdx is data dependent on rcx.
   } else {
     __ movptr(rdx, Address(rsp, 3*wordSize));  // obj
   }
   __ movptr(rsi, Address(rsp, 4*wordSize));  // jfieldID
+
+  __ clear_jweak_tag(rdx);
+
   __ movptr(rdx, Address(rdx, 0));           // *obj
   __ shrptr(rsi, 2);                         // offset
 
   assert(count < LIST_CAPACITY-1, "LIST_CAPACITY too small");
   speculative_load_pclist[count++] = __ pc();

@@ -289,10 +295,13 @@
                                               // rdx is data dependent on rcx.
   } else {
     __ movptr(rdx, Address(rsp, 2*wordSize)); // obj
   }
   __ movptr(rax, Address(rsp, 3*wordSize));  // jfieldID
+
+  __ clear_jweak_tag(rdx);
+
   __ movptr(rdx, Address(rdx, 0));           // *obj
   __ shrptr(rax, 2);                         // offset
 
   assert(count < LIST_CAPACITY, "LIST_CAPACITY too small");
   speculative_load_pclist[count] = __ pc();