You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING. If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA. */
+Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301, USA. */
/* This file mark functions as being either const (TREE_READONLY) or
pure (DECL_IS_PURE).
/* Any indirect reference that occurs on the lhs
disqualifies the function from being pure or const. Any
- indirect reference that occurs on the rhs disqualifies
- the function from being const. */
- if (checking_write)
+ indirect reference to a volatile disqualifies the
+ function from being pure or const. Any indirect
+ reference that occurs on the rhs disqualifies the
+ function from being const. */
+ if (checking_write || TREE_THIS_VOLATILE (t))
local->pure_const_state = IPA_NEITHER;
- else
- if (local->pure_const_state == IPA_CONST)
- local->pure_const_state = IPA_PURE;
+ else if (local->pure_const_state == IPA_CONST)
+ local->pure_const_state = IPA_PURE;
}
if (SSA_VAR_P (t))
static void
analyze_function (struct cgraph_node *fn)
{
- funct_state l = xcalloc (1, sizeof (struct funct_state_d));
+ funct_state l = XCNEW (struct funct_state_d);
tree decl = fn->decl;
struct ipa_dfs_info * w_info = fn->aux;
on the local information that was produced by ipa_analyze_function
and ipa_analyze_variable. */
-static void
+static unsigned int
static_execute (void)
{
struct cgraph_node *node;
struct cgraph_node *w;
struct cgraph_node **order =
- xcalloc (cgraph_n_nodes, sizeof (struct cgraph_node *));
+ XCNEWVEC (struct cgraph_node *, cgraph_n_nodes);
int order_pos = order_pos = ipa_utils_reduced_inorder (order, true, false);
int i;
struct ipa_dfs_info * w_info;
/* Get rid of the aux information. */
if (node->aux)
{
+ w_info = node->aux;
+ if (w_info->aux)
+ free (w_info->aux);
free (node->aux);
node->aux = NULL;
}
free (order);
+ return 0;
}
static bool
struct tree_opt_pass pass_ipa_pure_const =
{
- "ipa-pure-const", /* name */
+ "pure-const", /* name */
gate_pure_const, /* gate */
static_execute, /* execute */
NULL, /* sub */