--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_m_wb_u16.c	Mon May 25 07:50:57 2020 +0900
@@ -0,0 +1,23 @@
+/* { dg-require-effective-target arm_v8_1m_mve_ok } */
+/* { dg-add-options arm_v8_1m_mve } */
+/* { dg-additional-options "-O2" } */
+
+#include "arm_mve.h"
+
+uint16x8_t
+foo (uint16x8_t inactive, uint32_t * a, uint32_t b, mve_pred16_t p)
+{
+  return vdwdupq_m (inactive, a, b, 8, p);
+}
+
+/* { dg-final { scan-assembler "vpst" } } */
+/* { dg-final { scan-assembler "vdwdupt.u16"  }  } */
+
+uint16x8_t
+foo1 (uint16x8_t inactive, uint32_t * a, uint32_t b, mve_pred16_t p)
+{
+  return vdwdupq_m (inactive, a, b, 8, p);
+}
+
+/* { dg-final { scan-assembler "vpst" } } */
+/* { dg-final { scan-assembler "vdwdupt.u16"  }  } */