1 files changed, 16 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/memmove-3.c b/gcc/testsuite/gcc.dg/memmove-3.c
new file mode 100644
index 000000000..98493b3d4
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/memmove-3.c
@@ -0,0 +1,16 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fdump-tree-optimized" } */
+/* { dg-final { scan-tree-dump-times "memmove" 3 "optimized" } } */
+/* { dg-final { cleanup-tree-dump "optimized" } } */
+
+char a[40];
+struct A { char a[30]; };
+
+void
+foo (struct A *p, char *q, char *r)
+{
+  char b[10];
+  __builtin_memmove (&a[1], &a[19], 20);
+  __builtin_memmove (&p->a[1], &p->a[9], 10);
+  __builtin_memmove (q, r, 9);
+}