diff options
Diffstat (limited to 'gcc/tree-iterator.c')
| -rw-r--r-- | gcc/tree-iterator.c | 17 |
1 files changed, 6 insertions, 11 deletions
diff --git a/gcc/tree-iterator.c b/gcc/tree-iterator.c index 05764da..44b6bed 100644 --- a/gcc/tree-iterator.c +++ b/gcc/tree-iterator.c @@ -31,17 +31,16 @@ along with GCC; see the file COPYING3. If not see /* This is a cache of STATEMENT_LIST nodes. We create and destroy them fairly often during gimplification. */ -static GTY ((deletable (""))) tree stmt_list_cache; +static GTY ((deletable (""))) VEC(tree,gc) *stmt_list_cache; tree alloc_stmt_list (void) { - tree list = stmt_list_cache; - if (list) + tree list; + if (!VEC_empty (tree, stmt_list_cache)) { - stmt_list_cache = TREE_CHAIN (list); - gcc_assert (stmt_list_cache != list); - memset (list, 0, sizeof(struct tree_common)); + list = VEC_pop (tree, stmt_list_cache); + memset (list, 0, sizeof(struct tree_base)); TREE_SET_CODE (list, STATEMENT_LIST); } else @@ -55,11 +54,7 @@ free_stmt_list (tree t) { gcc_assert (!STATEMENT_LIST_HEAD (t)); gcc_assert (!STATEMENT_LIST_TAIL (t)); - /* If this triggers, it's a sign that the same list is being freed - twice. */ - gcc_assert (t != stmt_list_cache || stmt_list_cache == NULL); - TREE_CHAIN (t) = stmt_list_cache; - stmt_list_cache = t; + VEC_safe_push (tree, gc, stmt_list_cache, t); } /* A subroutine of append_to_statement_list{,_force}. T is not NULL. */ |