1 files changed, 19 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/opt/pr49264.C b/gcc/testsuite/g++.dg/opt/pr49264.C
new file mode 100644
index 000000000..dc23740f8
--- /dev/null
+++ b/gcc/testsuite/g++.dg/opt/pr49264.C
@@ -0,0 +1,19 @@
+// PR c++/49264
+// { dg-do compile }
+// { dg-options "-O2" }
+
+struct B { };
+struct A { char a[sizeof (B) + 1]; } a;
+
+static inline void
+foo (const B &b)
+{
+  __builtin_memcpy (&a, &b, sizeof (b));
+}
+
+void
+bar ()
+{
+  B c;
+  foo (c);
+}