re PR fortran/27954 (ICE on garbage in DATA statement)

2006-10-27  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR fortran/27954
	* decl.c (gfc_free_data_all): New function to free all data structures
	after errors in DATA statements and declarations.
	(top_var_list): Use new function.(top_val_list): Use new function.
	(gfc_match_data_decl): Use new function.
	* misc.c (gfc_typename): Fixed incorrect function name in error text.

From-SVN: r118084

1 files changed, 19 insertions, 0 deletions

diff --git a/gcc/fortran/decl.c b/gcc/fortran/decl.c
index 02dc38c..fbd2bbb 100644
--- a/gcc/fortran/decl.c
+++ b/gcc/fortran/decl.c
@@ -128,6 +128,21 @@ gfc_free_data (gfc_data * p)
 }
 
 
+/* Free all data in a namespace.  */
+static void
+gfc_free_data_all (gfc_namespace * ns)
+{
+  gfc_data *d;
+
+  for (;ns->data;)
+    {
+      d = ns->data->next;
+      gfc_free (ns->data);
+      ns->data = d;
+    }
+}
+
+
 static match var_element (gfc_data_variable *);
 
 /* Match a list of variables terminated by an iterator and a right
@@ -262,6 +277,7 @@ top_var_list (gfc_data * d)
 
 syntax:
   gfc_syntax_error (ST_DATA);
+  gfc_free_data_all (gfc_current_ns);
   return MATCH_ERROR;
 }
 
@@ -374,6 +390,7 @@ top_val_list (gfc_data * data)
 
 syntax:
   gfc_syntax_error (ST_DATA);
+  gfc_free_data_all (gfc_current_ns);
   return MATCH_ERROR;
 }
 
@@ -2368,6 +2385,8 @@ ok:
   gfc_error ("Syntax error in data declaration at %C");
   m = MATCH_ERROR;
 
+  gfc_free_data_all (gfc_current_ns);
+
 cleanup:
   gfc_free_array_spec (current_as);
   current_as = NULL;