/* Stack of available block local structures. */
varray_type free_block_data;
+
+ /* Interesting blocks to process. If this field is not NULL, this
+ set is used to determine which blocks to walk. If we encounter
+ block I in the dominator traversal, but block I is not present in
+ INTERESTING_BLOCKS, then none of the callback functions are
+ invoked on it. This is useful when a particular traversal wants
+ to filter out non-interesting blocks from the dominator tree. */
+ sbitmap interesting_blocks;
};
void walk_dominator_tree (struct dom_walk_data *, basic_block);