1 files changed, 25 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr118207.c b/gcc/testsuite/gcc.dg/pr118207.c
new file mode 100644
index 0000000..6366721
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr118207.c
@@ -0,0 +1,25 @@
+/* PR tree-optimization/118207 */
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+
+struct A { unsigned char a; };
+struct B { struct A b; };
+static const unsigned char c[160] = {
+  1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
+  1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
+  1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
+  1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
+  1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
+  1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
+  1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
+  1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
+  1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
+  1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 };
+struct B d;
+
+void
+foo ()
+{
+  const struct B *t = (const struct B *) &c;
+  d.b = t->b;
+}