1 files changed, 42 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/i386/avx2-vpmulhw-2.c b/gcc/testsuite/gcc.target/i386/avx2-vpmulhw-2.c
new file mode 100644
index 00000000000..ea0bde2bea9
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/avx2-vpmulhw-2.c
@@ -0,0 +1,42 @@
+/* { dg-do run } */
+/* { dg-options "-mavx2 -O2" } */
+/* { dg-require-effective-target avx2 } */
+
+#include "avx2-check.h"
+
+static void
+compute_pmulhw256 (short *s1, short *s2, short *r)
+{
+  int i;
+
+  for (i = 0; i < 16; i++)
+    r[i] = (s1[i] * s2[i]) >> 16;
+}
+
+static void
+avx2_test (void)
+{
+  union256i_w s1, s2, res;
+  short res_ref[16];
+  int i, j, sign = 1;
+  int fail = 0;
+
+  for (i = 0; i < 10; i++)
+    {
+      for (j = 0; j < 16; j++)
+	{
+	  s1.a[j] = i * j * sign;
+	  s2.a[j] = (j + 20) * sign;
+	  sign = -sign;
+	}
+
+      res.x = _mm256_mulhi_epi16 (s1.x, s2.x);
+
+      compute_pmulhw256 (s1.a, s2.a, res_ref);
+
+      fail += check_union256i_w (res, res_ref);
+    }
+
+  if (fail != 0)
+    abort ();
+}