diff -r a6fe94b9759f -r 2cb2f30450c7 src/cpu/x86/vm/methodHandles_x86.cpp
--- a/src/cpu/x86/vm/methodHandles_x86.cpp	Fri Sep 14 22:00:41 2012 -0700
+++ b/src/cpu/x86/vm/methodHandles_x86.cpp	Mon Sep 17 12:57:58 2012 -0700
@@ -327,10 +327,11 @@
     assert_different_registers(temp3,        rcx, rdx);
   }
 #endif
+  else {
+    assert_different_registers(temp1, temp2, temp3, saved_last_sp_register());  // don't trash lastSP
+  }
   assert_different_registers(temp1, temp2, temp3, receiver_reg);
   assert_different_registers(temp1, temp2, temp3, member_reg);
-  if (!for_compiler_entry)
-    assert_different_registers(temp1, temp2, temp3, saved_last_sp_register());  // don't trash lastSP
 
   if (iid == vmIntrinsics::_invokeBasic) {
     // indirect through MH.form.vmentry.vmtarget
@@ -392,14 +393,13 @@
     //  rsi/r13 - interpreter linkage (if interpreted)
     //  rcx, rdx, rsi, rdi, r8, r8 - compiler arguments (if compiled)
 
-    bool method_is_live = false;
+    Label L_incompatible_class_change_error;
     switch (iid) {
     case vmIntrinsics::_linkToSpecial:
       if (VerifyMethodHandles) {
         verify_ref_kind(_masm, JVM_REF_invokeSpecial, member_reg, temp3);
       }
       __ movptr(rbx_method, member_vmtarget);
-      method_is_live = true;
       break;
 
     case vmIntrinsics::_linkToStatic:
@@ -407,7 +407,6 @@
         verify_ref_kind(_masm, JVM_REF_invokeStatic, member_reg, temp3);
       }
       __ movptr(rbx_method, member_vmtarget);
-      method_is_live = true;
       break;
 
     case vmIntrinsics::_linkToVirtual:
@@ -436,7 +435,6 @@
 
       // get target Method* & entry point
       __ lookup_virtual_method(temp1_recv_klass, temp2_index, rbx_method);
-      method_is_live = true;
       break;
     }
 
@@ -464,35 +462,32 @@
       }
 
       // given intf, index, and recv klass, dispatch to the implementation method
-      Label L_no_such_interface;
       __ lookup_interface_method(temp1_recv_klass, temp3_intf,
                                  // note: next two args must be the same:
                                  rbx_index, rbx_method,
                                  temp2,
-                                 L_no_such_interface);
-
-      __ verify_method_ptr(rbx_method);
-      jump_from_method_handle(_masm, rbx_method, temp2, for_compiler_entry);
-      __ hlt();
-
-      __ bind(L_no_such_interface);
-      __ jump(RuntimeAddress(StubRoutines::throw_IncompatibleClassChangeError_entry()));
+                                 L_incompatible_class_change_error);
       break;
     }
 
     default:
-      fatal(err_msg("unexpected intrinsic %d: %s", iid, vmIntrinsics::name_at(iid)));
+      fatal(err_msg_res("unexpected intrinsic %d: %s", iid, vmIntrinsics::name_at(iid)));
       break;
     }
 
-    if (method_is_live) {
-      // live at this point:  rbx_method, rsi/r13 (if interpreted)
+    // Live at this point:
+    //   rbx_method
+    //   rsi/r13 (if interpreted)
 
-      // After figuring out which concrete method to call, jump into it.
-      // Note that this works in the interpreter with no data motion.
-      // But the compiled version will require that rcx_recv be shifted out.
-      __ verify_method_ptr(rbx_method);
-      jump_from_method_handle(_masm, rbx_method, temp1, for_compiler_entry);
+    // After figuring out which concrete method to call, jump into it.
+    // Note that this works in the interpreter with no data motion.
+    // But the compiled version will require that rcx_recv be shifted out.
+    __ verify_method_ptr(rbx_method);
+    jump_from_method_handle(_masm, rbx_method, temp1, for_compiler_entry);
+
+    if (iid == vmIntrinsics::_linkToInterface) {
+      __ bind(L_incompatible_class_change_error);
+      __ jump(RuntimeAddress(StubRoutines::throw_IncompatibleClassChangeError_entry()));
     }
   }
 }