--- a/hotspot/src/share/vm/c1/c1_LIRGenerator.cpp Thu Apr 07 21:32:23 2011 -0700
+++ b/hotspot/src/share/vm/c1/c1_LIRGenerator.cpp Fri Apr 08 17:03:31 2011 -0700
@@ -1456,7 +1456,7 @@
if (addr->is_address()) {
LIR_Address* address = addr->as_address_ptr();
- LIR_Opr ptr = new_register(T_OBJECT);
+ LIR_Opr ptr = new_pointer_register();
if (!address->index()->is_valid() && address->disp() == 0) {
__ move(address->base(), ptr);
} else {
@@ -1508,7 +1508,9 @@
LIR_Const* card_table_base = new LIR_Const(((CardTableModRefBS*)_bs)->byte_map_base);
if (addr->is_address()) {
LIR_Address* address = addr->as_address_ptr();
- LIR_Opr ptr = new_register(T_OBJECT);
+ // ptr cannot be an object because we use this barrier for array card marks
+ // and addr can point in the middle of an array.
+ LIR_Opr ptr = new_pointer_register();
if (!address->index()->is_valid() && address->disp() == 0) {
__ move(address->base(), ptr);
} else {