+
+/* This flag is true if a SMT is used as the V_MAY_DEF or VUSE operand
+ directly, because the access had all of the SMT's aliases pruned
+ from it. */
+#define SMT_USED_ALONE(NODE) (SYMBOL_MEMORY_TAG_CHECK (NODE)->mtag.is_used_alone)
+
+/* This flag is used to temporarily store the old value of the used alone
+ flag when updating so we know whether to mark the symbol for
+ renaming. */
+#define SMT_OLD_USED_ALONE(NODE) (SYMBOL_MEMORY_TAG_CHECK (NODE)->mtag.old_used_alone)
+
+struct tree_struct_field_tag GTY(())
+{
+ struct tree_memory_tag common;
+
+ /* Parent variable. */
+ tree parent_var;
+
+ /* Offset inside structure. */
+ unsigned HOST_WIDE_INT offset;
+
+ /* Size of the field. */
+ unsigned HOST_WIDE_INT size;
+
+};
+#define SFT_PARENT_VAR(NODE) (STRUCT_FIELD_TAG_CHECK (NODE)->sft.parent_var)
+#define SFT_OFFSET(NODE) (STRUCT_FIELD_TAG_CHECK (NODE)->sft.offset)
+#define SFT_SIZE(NODE) (STRUCT_FIELD_TAG_CHECK (NODE)->sft.size)