1 files changed, 48 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/i386/avx2-vpacksswb-2.c b/gcc/testsuite/gcc.target/i386/avx2-vpacksswb-2.c
new file mode 100644
index 00000000000..8b2a1c11184
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/avx2-vpacksswb-2.c
@@ -0,0 +1,48 @@
+/* { dg-do run } */
+/* { dg-options "-mavx2 -O2" } */
+/* { dg-require-effective-target avx2 } */
+
+#include "avx2-check.h"
+
+static char
+short_to_byte (short iVal)
+{
+  char sVal;
+
+  if (iVal < -128)
+    sVal = -128;
+  else if (iVal > 127)
+    sVal = 127;
+  else
+    sVal = iVal;
+
+  return sVal;
+}
+
+void static
+avx2_test (void)
+{
+  union256i_w s1, s2;
+  union256i_b u;
+  char e[32];
+  int i;
+
+  s1.x = _mm256_set_epi16 (1, 2, 3, 4, 6500, 20, 30, 90,
+			   88, 44, 33, 22, 11, 98, 78, -1000);
+
+  s2.x = _mm256_set_epi16 (88, 44, 33, 22, 11, 98, 76, -650,
+			   1, 2, 3, 4, 6500, 20, 30, 90);
+
+  u.x = _mm256_packs_epi16 (s1.x, s2.x);
+
+  for (i = 0; i < 8; i++)
+    {
+      e[i] = short_to_byte (s1.a[i]);
+      e[i + 8] = short_to_byte (s2.a[i]);
+      e[i + 16] = short_to_byte (s1.a[i + 8]);
+      e[i + 24] = short_to_byte (s2.a[i + 8]);
+    }
+
+  if (check_union256i_b (u, e))
+    abort ();
+}