diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 6c6be45add..82f6ae80d9 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2008-01-04  Joel Brobecker  <brobecker@adacore.com>
+
+	* ada-lang.c (ada_evaluate_subexp): Evaluate tagged types in
+	EVAL_NORMAL mode when noside is EVAL_AVOID_SIDE_EFFECTS.
+
 2008-01-04  Joel Brobecker  <brobecker@adacore.com>
 
 	* ada-exp.y (chop_separator): New function.
diff --git a/gdb/ada-lang.c b/gdb/ada-lang.c
index 2c617057f1..134244f1d3 100644
--- a/gdb/ada-lang.c
+++ b/gdb/ada-lang.c
@@ -8339,6 +8339,15 @@ ada_evaluate_subexp (struct type *expect_type, struct expression *exp,
 
     case OP_VAR_VALUE:
       *pos -= 1;
+
+      /* Tagged types are a little special in the fact that the real type
+         is dynamic and can only be determined by inspecting the object
+         value.  So even if we're support to do an EVAL_AVOID_SIDE_EFFECTS
+         evaluation, we force an EVAL_NORMAL evaluation for tagged types.  */
+      if (noside == EVAL_AVOID_SIDE_EFFECTS
+          && ada_is_tagged_type (SYMBOL_TYPE (exp->elts[pc + 2].symbol), 1))
+        noside = EVAL_NORMAL;
+
       if (noside == EVAL_SKIP)
         {
           *pos += 4;