diff options
Diffstat (limited to 'gcc/ggc.h')
| -rw-r--r-- | gcc/ggc.h | 44 |
1 files changed, 23 insertions, 21 deletions
@@ -42,19 +42,6 @@ union tree_node; struct varasm_status; struct varray_head_tag; -/* 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 *)); -}; - -extern struct ggc_root *roots; - /* Manipulate global roots that are needed between calls to gc. */ void ggc_add_root PROTO ((void *base, int nelt, int size, void (*)(void *))); void ggc_add_rtx_root PROTO ((struct rtx_def **, int nelt)); @@ -66,14 +53,29 @@ void ggc_del_root PROTO ((void *base)); /* Mark nodes from the gc_add_root callback. These functions follow pointers to mark other objects too. */ -void ggc_mark_rtx PROTO ((struct rtx_def *)); -void ggc_mark_rtvec PROTO ((struct rtvec_def *)); -void ggc_mark_tree PROTO ((union tree_node *)); -void ggc_mark_tree_varray PROTO ((struct varray_head_tag *)); -void ggc_mark_tree_hash_table PROTO ((struct hash_table *)); -void ggc_mark_string PROTO ((char *)); -void ggc_mark PROTO ((void *)); - +extern void ggc_mark_rtvec PROTO ((struct rtvec_def *)); +extern void ggc_mark_tree_varray PROTO ((struct varray_head_tag *)); +extern void ggc_mark_tree_hash_table PROTO ((struct hash_table *)); +extern void ggc_mark_string PROTO ((char *)); +extern void ggc_mark PROTO ((void *)); +extern void ggc_mark_roots PROTO((void)); + +extern void ggc_mark_rtx_children PROTO ((struct rtx_def *)); +extern void ggc_mark_tree_children PROTO ((union tree_node *)); + +#define ggc_mark_rtx(RTX_EXPR) \ + do { \ + rtx r__ = (RTX_EXPR); \ + if (r__ != NULL && ! ggc_set_mark_rtx (r__)) \ + ggc_mark_rtx_children (r__); \ + } while (0) + +#define ggc_mark_tree(TREE_EXPR) \ + do { \ + tree t__ = (TREE_EXPR); \ + if (t__ != NULL && ! ggc_set_mark_tree (t__)) \ + ggc_mark_tree_children (t__); \ + } while (0) /* A GC implementation must provide these functions. */ |