1 files changed, 49 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/i386/avx2-vphsubd-2.c b/gcc/testsuite/gcc.target/i386/avx2-vphsubd-2.c
new file mode 100644
index 00000000000..ba493679228
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/avx2-vphsubd-2.c
@@ -0,0 +1,49 @@
+/* { dg-do run } */
+/* { dg-options "-mavx2 -O2" } */
+/* { dg-require-effective-target avx2 } */
+
+#include "avx2-check.h"
+#include "ssse3-vals.h"
+
+static void
+compute_phsubd256 (int *i1, int *i2, int *r)
+{
+  int i;
+
+  for (i = 0; i < 2; i++)
+    r[i + 0] = i1[2 * i] - i1[2 * i + 1];
+
+  for (i = 0; i < 2; i++)
+    r[i + 2] = i2[2 * i] - i2[2 * i + 1];
+
+  for (i = 0; i < 2; i++)
+    r[i + 4] = i1[2 * i + 4] - i1[2 * i + 5];
+
+  for (i = 0; i < 2; i++)
+    r[i + 6] = i2[2 * i + 4] - i2[2 * i + 5];
+}
+
+static void
+avx2_test (void)
+{
+  union256i_d s1, s2, res;
+  int res_ref[8];
+  int i, j;
+  int fail = 0;
+
+
+  for (i = 0; i < 256; i += 16)
+    {
+      s1.x = _mm256_loadu_si256 ((__m256i *) & vals[i]);
+      s2.x = _mm256_loadu_si256 ((__m256i *) & vals[i + 8]);
+
+      res.x = _mm256_hsub_epi32 (s1.x, s2.x);
+
+      compute_phsubd256 (s1.a, s2.a, res_ref);
+
+      fail += check_union256i_d (res, res_ref);
+    }
+
+  if (fail != 0)
+    abort ();
+}