===================================================================
@@ -5419,11 +5419,21 @@ gimplify_asm_expr (tree *expr_p, gimple_
vec_safe_push (inputs, link);
}
- for (link = ASM_CLOBBERS (expr); link; ++i, link = TREE_CHAIN (link))
- vec_safe_push (clobbers, link);
+ link_next = NULL_TREE;
+ for (link = ASM_CLOBBERS (expr); link; ++i, link = link_next)
+ {
+ link_next = TREE_CHAIN (link);
+ TREE_CHAIN (link) = NULL_TREE;
+ vec_safe_push (clobbers, link);
+ }
- for (link = ASM_LABELS (expr); link; ++i, link = TREE_CHAIN (link))
- vec_safe_push (labels, link);
+ link_next = NULL_TREE;
+ for (link = ASM_LABELS (expr); link; ++i, link = link_next)
+ {
+ link_next = TREE_CHAIN (link);
+ TREE_CHAIN (link) = NULL_TREE;
+ vec_safe_push (labels, link);
+ }
/* Do not add ASMs with errors to the gimple IL stream. */
if (ret != GS_ERROR)