diff -r 428a9c451986 -r fc2c71045ada src/cpu/x86/vm/c1_LIRAssembler_x86.cpp
--- a/src/cpu/x86/vm/c1_LIRAssembler_x86.cpp	Tue Mar 16 15:35:33 2010 -0700
+++ b/src/cpu/x86/vm/c1_LIRAssembler_x86.cpp	Wed Mar 17 10:22:41 2010 +0100
@@ -2762,13 +2762,13 @@
 }
 
 
-void LIR_Assembler::preserve_SP() {
-  __ movptr(rbp, rsp);
+void LIR_Assembler::preserve_SP(LIR_OpJavaCall* op) {
+  __ movptr(FrameMap::method_handle_invoke_SP_save_opr()->as_register(), rsp);
 }
 
 
-void LIR_Assembler::restore_SP() {
-  __ movptr(rsp, rbp);
+void LIR_Assembler::restore_SP(LIR_OpJavaCall* op) {
+  __ movptr(rsp, FrameMap::method_handle_invoke_SP_save_opr()->as_register());
 }