diff options
Diffstat (limited to 'gcc/tree-browser.c')
| -rw-r--r-- | gcc/tree-browser.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/gcc/tree-browser.c b/gcc/tree-browser.c index a7c80c991ec..3803a504185 100644 --- a/gcc/tree-browser.c +++ b/gcc/tree-browser.c @@ -108,7 +108,7 @@ void browse_tree (tree); /* Static variables. */ static htab_t TB_up_ht; -static tree TB_history_stack = NULL_TREE; +static VEC(tree,gc) *TB_history_stack; static int TB_verbose = 1; @@ -126,7 +126,7 @@ browse_tree (tree begin) fprintf (TB_OUT_FILE, "\nTree Browser\n"); #define TB_SET_HEAD(N) do { \ - TB_history_stack = tree_cons (NULL_TREE, (N), TB_history_stack); \ + VEC_safe_push (tree, gc, TB_history_stack, N); \ head = N; \ if (TB_verbose) \ if (head) \ @@ -876,11 +876,11 @@ find_node_with_code (tree *tp, int *walk_subtrees ATTRIBUTE_UNUSED, static tree TB_history_prev (void) { - if (TB_history_stack) + if (!VEC_empty (tree, TB_history_stack)) { - TB_history_stack = TREE_CHAIN (TB_history_stack); - if (TB_history_stack) - return TREE_VALUE (TB_history_stack); + tree last = VEC_last (tree, TB_history_stack); + VEC_pop (tree, TB_history_stack); + return last; } return NULL_TREE; } |