1 files changed, 54 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/i386/avx2-vpblendw-2.c b/gcc/testsuite/gcc.target/i386/avx2-vpblendw-2.c
new file mode 100644
index 00000000000..0500d351e7c
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/avx2-vpblendw-2.c
@@ -0,0 +1,54 @@
+/* { dg-do run } */
+/* { dg-options "-mavx2 -O2" } */
+/* { dg-require-effective-target avx2 } */
+
+#include "avx2-check.h"
+#include <string.h>
+
+#define NUM 20
+
+#undef MASK
+#define MASK 0xfe
+
+static void
+init_pblendw (short *src1, short *src2, int seed)
+{
+  int i, sign = 1;
+
+  for (i = 0; i < 16; i++)
+    {
+      src1[i] = (i + seed) * (i + seed) * sign;
+      src2[i] = (i + seed + 20) * sign;
+      sign = -sign;
+    }
+}
+
+static void
+calc_pblendw (short *src1, short *src2, unsigned int mask, short *dst)
+{
+  int i;
+
+  memcpy (dst, src1, 32);
+  for (i = 0; i < 16; i++)
+    if (mask & (1 << (i % 8)))
+      dst[i] = src2[i];
+}
+
+static void
+avx2_test (void)
+{
+  union256i_w src1, src2, dst;
+  short dst_ref[16];
+  int i;
+
+  for (i = 0; i < NUM; i++)
+    {
+      init_pblendw (src1.a, src2.a, i);
+
+      dst.x = _mm256_blend_epi16 (src1.x, src2.x, MASK);
+      calc_pblendw (src1.a, src2.a, MASK, dst_ref);
+
+      if (check_union256i_w (dst, dst_ref))
+	abort ();
+    }
+}