------- Comment #9 from hjl at lucon dot org 2008-01-07 22:57 -------
We are processing common block symbols which we have rejected/freed before.
This patch works for me:
Index: symbol.c
===================================================================
--- symbol.c (revision 131352)
+++ symbol.c (working copy)
@@ -2726,14 +2726,14 @@ gfc_commit_symbol (gfc_symbol *sym)
/* Recursive function that deletes an entire tree and all the common
head structures it points to. */
-static void
-free_common_tree (gfc_symtree * common_tree)
+void
+gfc_free_common_tree (gfc_symtree * common_tree)
{
if (common_tree == NULL)
return;
- free_common_tree (common_tree->left);
- free_common_tree (common_tree->right);
+ gfc_free_common_tree (common_tree->left);
+ gfc_free_common_tree (common_tree->right);
gfc_free (common_tree);
}
@@ -2863,7 +2863,7 @@ gfc_free_namespace (gfc_namespace *ns)
free_sym_tree (ns->sym_root);
free_uop_tree (ns->uop_root);
- free_common_tree (ns->common_root);
+ gfc_free_common_tree (ns->common_root);
for (cl = ns->cl_list; cl; cl = cl2)
{
Index: gfortran.h
===================================================================
--- gfortran.h (revision 131352)
+++ gfortran.h (working copy)
@@ -2137,6 +2137,7 @@ int gfc_symbols_could_alias (gfc_symbol
void gfc_undo_symbols (void);
void gfc_commit_symbols (void);
void gfc_commit_symbol (gfc_symbol *);
+void gfc_free_common_tree (gfc_symtree *);
void gfc_free_namespace (gfc_namespace *);
void gfc_symbol_init_2 (void);
Index: match.c
===================================================================
--- match.c (revision 131352)
+++ match.c (working copy)
@@ -2956,6 +2956,8 @@ done:
return MATCH_YES;
syntax:
+ gfc_free_common_tree (gfc_current_ns->common_root);
+ gfc_current_ns->common_root = NULL;
gfc_syntax_error (ST_COMMON);
cleanup:
I don't know if it is 100% correct.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33375
