===================================================================
@@ -497,9 +497,7 @@ set_lattice_value (tree var, ccp_prop_va
use the meet operator to retain a conservative value.
Missed optimizations like PR65851 makes this necessary.
It also ensures we converge to a stable lattice solution. */
- if (new_val->lattice_val == CONSTANT
- && old_val->lattice_val == CONSTANT
- && TREE_CODE (new_val->value) != SSA_NAME)
+ if (old_val->lattice_val != UNINITIALIZED)
ccp_lattice_meet (new_val, old_val);
gcc_checking_assert (valid_lattice_transition (*old_val, *new_val));
===================================================================
@@ -0,0 +1,23 @@
+/* { dg-do compile } */
+
+unsigned a;
+short b;
+char c, d, e;
+void fn1();
+void fn2() {
+ a++;
+ for (; a;)
+ fn1(0, 0);
+}
+void fn3() {
+ fn2();
+l1:;
+ unsigned char f;
+ short g;
+ unsigned char *h = &f;
+ g += &h ? e ? g = 1 : 0 : 0;
+ d = g;
+ c *f;
+ if (d & (b %= *h) < f * d / (d -= 0))
+ goto l1;
+}