1 files changed, 32 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr34856.c b/gcc/testsuite/gcc.dg/pr34856.c
new file mode 100644
index 000000000..6bfc70477
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr34856.c
@@ -0,0 +1,32 @@
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+/* { dg-options "-O2 -msse2" { target { i?86-*-* x86_64-*-* } } } */
+/* { dg-options "-O2 -maltivec" { target { powerpc*-*-linux* && powerpc_altivec_ok } } } */
+
+typedef unsigned __attribute__ ((__mode__ (__pointer__))) uintptr_t;
+
+#undef __vector
+#define __vector __attribute__ ((__vector_size__ (16)))
+
+typedef __vector signed char qword;
+typedef __vector uintptr_t VU;
+
+extern short g[192 + 16];
+
+void f (qword);
+
+void f1 (unsigned ctr)
+{
+  VU pin;
+
+  pin = (VU){(uintptr_t) &g[16]};
+  do
+    {
+      f ((qword) pin);
+      ctr--;
+    }
+  while (ctr);
+}
+
+/* Ignore a warning that is irrelevant to the purpose of this test.  */
+/* { dg-prune-output ".*GCC vector passed by reference.*" } */