+2012-02-21 Georg-Johann Lay <avr@gjlay.de>
+
+ PR middle-end/51782
+ * gcc.target/avr/torture/pr51782-1.c: New test.
+
2012-02-21 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/52318
--- /dev/null
+/* PR middle-end/51782 */
+/* { dg-do run } */
+/* { dg-options { "-std=gnu99" } } */
+
+#include <stdlib.h>
+
+struct R { char r; };
+struct RGB { char r,g,b; };
+
+__flash const struct R r1 = { 12 };
+__flash const struct RGB r3 = { 23, 56, 78 };
+
+char __attribute__((noinline,noclone))
+read1_bug (const __flash struct R *s)
+{
+ struct R t = *s;
+ return t.r;
+}
+
+char __attribute__((noinline,noclone))
+read1_ok (const __flash struct R *s)
+{
+ return s->r;
+}
+
+char __attribute__((noinline,noclone))
+read3_bug (const __flash struct RGB *s)
+{
+ struct RGB t = *s;
+ return t.r + t.g + t.b;
+}
+
+char __attribute__((noinline,noclone))
+read3_ok (const __flash struct RGB *s)
+{
+ return s->r + s->g + s->b;
+}
+
+__flash const struct R * volatile p1 = &r1;
+__flash const struct RGB * volatile p3 = &r3;
+
+int main (void)
+{
+ if (read1_bug (p1) != read1_ok (p1))
+ abort();
+
+ if (read3_bug (p3) != read3_ok (p3))
+ abort();
+
+ exit (0);
+}