* cselib.c (discard_useless_values): Clear out value pointer pointing

	to datastructure to be recycled.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@76666 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ea4c6d3..a66fb08 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2004-01-26  Jan Hubicka  <jh@suse.cz>
+
+       * cselib.c (discard_useless_values):  Clear out value pointer pointing
+       to datastructure to be recycled.
+
 2004-01-25  Jan Hubicka  <jh@suse.cz>
 
        * genextract.c (main): Do not output the memset when not checking.

diff --git a/gcc/cselib.c b/gcc/cselib.c
index d4ce925..5c98b06 100644 (file)
--- a/gcc/cselib.c
+++ b/gcc/cselib.c
@@ -332,6 +332,7 @@ discard_useless_values (void **x, void *info ATTRIBUTE_UNUSED)
 
   if (v->locs == 0)
     {
+      CSELIB_VAL_PTR (v->u.val_rtx) = NULL;
       htab_clear_slot (hash_table, x);
       unchain_one_value (v);
       n_useless_values--;