--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.target/powerpc/vec-strir_p-1.c	Mon May 25 07:50:57 2020 +0900
@@ -0,0 +1,39 @@
+/* { dg-do run } */
+/* { dg-require-effective-target powerpc_future_hw } */
+/* { dg-options "-mdejagnu-cpu=future" } */
+
+#include <altivec.h>
+
+extern void abort (void);
+
+/* Vector string isolate right-justified on array of unsigned char.  */
+int
+sirj_p (vector unsigned char arg)
+{
+  return vec_strir_p (arg);
+}
+
+int main (int argc, char *argv [])
+{
+  vector unsigned char input1 =
+    { 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8,
+      0x9, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf, 0x11 };
+  vector unsigned char input2 =
+    { 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8,
+      0x9, 0xa, 0xb, 0xc, 0xd, 0x0, 0xf, 0x11 };
+  vector unsigned char input3 =
+    { 0x1, 0x2, 0x0, 0x4, 0x5, 0x6, 0x7, 0x8,
+      0x9, 0xa, 0xb, 0xc, 0xd, 0x0, 0xf, 0x11 };
+  vector unsigned char input4 =
+    { 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8,
+      0x9, 0xa, 0xb, 0xc, 0xd, 0x0, 0xf, 0x11 };
+
+  if (sirj_p (input1))
+    abort ();
+  if (!sirj_p (input2))
+    abort ();
+  if (!sirj_p (input3))
+    abort ();
+  if (!sirj_p (input4))
+    abort ();
+}