/* Maintain global roots that are preserved during GC. */
-struct ggc_root *roots;
+/* Global roots that are preserved during calls to gc. */
+
+struct ggc_root
+{
+ struct ggc_root *next;
+ void *base;
+ int nelt;
+ int size;
+ void (*cb) PROTO ((void *));
+};
+
+static struct ggc_root *roots;
/* Type-correct function to pass to ggc_add_root. It just forwards
*ELT (which is an rtx) to ggc_mark_tree_varray. */
}
void
-ggc_mark_rtx (r)
+ggc_mark_roots ()
+{
+ struct ggc_root* x;
+
+ for (x = roots; x != NULL; x = x->next)
+ {
+ char *elt = x->base;
+ int s = x->size, n = x->nelt;
+ void (*cb) PROTO ((void *)) = x->cb;
+ int i;
+
+ for (i = 0; i < n; ++i, elt += s)
+ (*cb)(elt);
+ }
+}
+
+void
+ggc_mark_rtx_children (r)
rtx r;
{
const char *fmt;
int i;
- if (r == NULL_RTX || ggc_set_mark_rtx (r))
- return;
-
/* ??? If (some of) these are really pass-dependant info, do we have
any right poking our noses in? */
switch (GET_CODE (r))
}
void
-ggc_mark_tree (t)
+ggc_mark_tree_children (t)
tree t;
{
- /* FIXME what if t == NULL_TREE ? */
- if (t == NULL || ggc_set_mark_tree (t))
- return;
-
/* Bits from common. */
ggc_mark_tree (TREE_TYPE (t));
ggc_mark_tree (TREE_CHAIN (t));