--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.dg/tree-ssa/vector-6.c	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,35 @@
+/* { dg-do compile } */
+/* { dg-options "-O -fdump-tree-ccp1 -Wno-psabi -w" } */
+/* { dg-additional-options "-msse2" { target i?86-*-* x86_64-*-* } } */
+/* { dg-additional-options "-maltivec" { target powerpc_altivec_ok } } */
+
+typedef int v4si __attribute__((vector_size (4 * sizeof (int))));
+
+v4si test1 (v4si v, int i)
+{
+  ((int *)&v)[0] = i;
+  return v;
+}
+
+v4si test2 (v4si v, int i)
+{
+  int *p = (int *)&v;
+  *p = i;
+  return v;
+}
+
+v4si test3 (v4si v, int i)
+{
+  ((int *)&v)[3] = i;
+  return v;
+}
+
+v4si test4 (v4si v, int i)
+{
+  int *p = (int *)&v;
+  p += 3;
+  *p = i;
+  return v;
+}
+
+/* { dg-final { scan-tree-dump-times "Now a gimple register: v" 4 "ccp1" { target { { i?86-*-* x86_64-*-* aarch64*-*-* spu*-*-* } || { powerpc_altivec_ok } } } } } */