--- old/src/cpu/x86/vm/sharedRuntime_x86_64.cpp	Thu Feb 18 19:05:38 2010
+++ new/src/cpu/x86/vm/sharedRuntime_x86_64.cpp	Thu Feb 18 19:05:38 2010
@@ -310,6 +310,18 @@
 }
 
 // ---------------------------------------------------------------------------
+// This method is used to read a float value which is saved on stack as double
+// (see RegisterSaver::save_live_registers() above).
+StackValue* StackValue::create_float_stack_value(address value_addr) {
+  union { intptr_t p; jfloat jf; } value;
+  value.p = (intptr_t) CONST64(0xDEADDEAFDEADDEAF);
+  // XMM registers are used for float values and they are saved as double
+  // without conversion. Read lowest 32 bit to get float value.
+  value.jf = *(jfloat*) value_addr;
+  return new StackValue(value.p); // 64-bit high half is stack junk
+}
+
+// ---------------------------------------------------------------------------
 // Read the array of BasicTypes from a signature, and compute where the
 // arguments should go.  Values in the VMRegPair regs array refer to 4-byte
 // quantities.  Values less than VMRegImpl::stack0 are registers, those above