@@ -212,9 +212,9 @@ struct GTY(()) named_label_entry {
defined, or the inner scope popped. These are the decls that will
be skipped when jumping to the label. */
tree names_in_scope;
- /* A tree list of all decls from all binding levels that would be
+ /* A vector of all decls from all binding levels that would be
crossed by a backward branch to the label. */
- tree bad_decls;
+ VEC(tree,gc) *bad_decls;
/* A list of uses of the label, before the label is defined. */
struct named_label_use_entry *uses;
@@ -471,7 +471,7 @@ poplevel_named_label_1 (void **slot, void *data)
for (decl = ent->names_in_scope; decl; decl = TREE_CHAIN (decl))
if (decl_jump_unsafe (decl))
- ent->bad_decls = tree_cons (NULL, decl, ent->bad_decls);
+ VEC_safe_push (tree, gc, ent->bad_decls, decl);
ent->binding_level = obl;
ent->names_in_scope = obl->names;
@@ -2652,6 +2652,7 @@ check_goto (tree decl)
struct named_label_entry *ent, dummy;
bool saw_catch = false, identified = false;
tree bad;
+ unsigned ix;
/* We can't know where a computed goto is jumping.
So we assume that it's OK. */
@@ -2690,29 +2691,28 @@ check_goto (tree decl)
}
if (ent->in_try_scope || ent->in_catch_scope
- || ent->in_omp_scope || ent->bad_decls)
+ || ent->in_omp_scope || !VEC_empty (tree, ent->bad_decls))
{
permerror (input_location, "jump to label %q+D", decl);
permerror (input_location, " from here");
identified = true;
}
- for (bad = ent->bad_decls; bad; bad = TREE_CHAIN (bad))
+ for (ix = 0; VEC_iterate (tree, ent->bad_decls, ix, bad); ix++)
{
- tree b = TREE_VALUE (bad);
- int u = decl_jump_unsafe (b);
+ int u = decl_jump_unsafe (bad);
- if (u > 1 && DECL_ARTIFICIAL (b))
+ if (u > 1 && DECL_ARTIFICIAL (bad))
{
/* Can't skip init of __exception_info. */
- error_at (DECL_SOURCE_LOCATION (b), " enters catch block");
+ error_at (DECL_SOURCE_LOCATION (bad), " enters catch block");
saw_catch = true;
}
else if (u > 1)
- error (" skips initialization of %q+#D", b);
+ error (" skips initialization of %q+#D", bad);
else
permerror (input_location, " enters scope of %q+#D which has "
- "non-trivial destructor", b);
+ "non-trivial destructor", bad);
}
if (ent->in_try_scope)