Hi!
As we have no short testcase for PR53438, I've committed
the following testcase as obvious to trunk and 4.7.
2012-05-28 Jakub Jelinek <ja...@redhat.com>
PR tree-optimization/53505
* c-c++-common/torture/pr53505.c: New test.
--- gcc/testsuite/c-c++-common/torture/pr53505.c.jj 2012-05-28
16:20:13.927753639 +0200
+++ gcc/testsuite/c-c++-common/torture/pr53505.c 2012-05-28
16:20:52.832528256 +0200
@@ -0,0 +1,42 @@
+/* PR tree-optimization/53505 */
+/* { dg-do run } */
+
+#include <stdbool.h>
+
+struct A
+{
+ unsigned int a;
+ unsigned char c1, c2;
+ bool b1 : 1;
+ bool b2 : 1;
+ bool b3 : 1;
+};
+
+void
+foo (const struct A *x, int y)
+{
+ int s = 0, i;
+ for (i = 0; i < y; ++i)
+ {
+ const struct A a = x[i];
+ s += a.b1 ? 1 : 0;
+ }
+ if (s != 0)
+ __builtin_abort ();
+}
+
+int
+main ()
+{
+ struct A x[100];
+ int i;
+ __builtin_memset (x, -1, sizeof (x));
+ for (i = 0; i < 100; i++)
+ {
+ x[i].b1 = false;
+ x[i].b2 = false;
+ x[i].b3 = false;
+ }
+ foo (x, 100);
+ return 0;
+}
Jakub
