diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index b8eb2d586c..4ce5331670 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,9 @@
+2010-07-02  Tom Tromey  <tromey@redhat.com>
+
+	PR exp/11780:
+	* libunwind-frame.c (libunwind_frame_prev_register): Don't set
+	value as optimized-out.
+
 2010-07-02  Ulrich Weigand  <uweigand@de.ibm.com>
 	    Thiago Jung Bauermann  <bauerman@br.ibm.com>
 
diff --git a/gdb/libunwind-frame.c b/gdb/libunwind-frame.c
index 231d9095cc..4d32adb918 100644
--- a/gdb/libunwind-frame.c
+++ b/gdb/libunwind-frame.c
@@ -348,7 +348,6 @@ libunwind_frame_prev_register (struct frame_info *this_frame,
               return frame_unwind_got_constant (this_frame, regnum, 0);
             val = frame_unwind_got_constant (this_frame, regnum, intval);
           }
-        set_value_optimized_out (val, 1);
         break;
       }
     }