1 files changed, 60 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/i386/avx512cd-vplzcntd-2.c b/gcc/testsuite/gcc.target/i386/avx512cd-vplzcntd-2.c
new file mode 100644
index 00000000000..0a357b69fa6
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/avx512cd-vplzcntd-2.c
@@ -0,0 +1,60 @@
+/* { dg-do run } */
+/* { dg-options "-O2 -mavx512cd" } */
+/* { dg-require-effective-target avx512cd } */
+
+#define HAVE_512
+#define AVX512CD
+
+#include "avx512f-helper.h"
+
+#define SIZE (AVX512F_LEN / 32)
+#include "avx512f-mask-type.h"
+#include <strings.h>
+
+static void
+CALC (int *s, int *r)
+{
+  int i, res;
+
+  for (i = 0; i < SIZE; i++)
+    {
+      res = 0;
+      while ((res < 32) && (((s[i] >> (31 - res)) & 1) == 0))
+	++res;
+      r[i] = res;
+    }
+}
+
+static void
+TEST (void)
+{
+  UNION_TYPE (AVX512F_LEN, i_d) s, res1, res2, res3;
+  int res_ref[SIZE];
+  MASK_TYPE mask = MASK_VALUE;
+  int i;
+
+  for (i = 0; i < SIZE; i++)
+    {
+      s.a[i] = 12345678 * (i % 5);
+      res1.a[i] = DEFAULT_VALUE;
+      res2.a[i] = DEFAULT_VALUE;
+      res3.a[i] = DEFAULT_VALUE;
+    }
+
+  res1.x = INTRINSIC (_lzcnt_epi32) (s.x);
+  res2.x = INTRINSIC (_mask_lzcnt_epi32) (res2.x, mask, s.x);
+  res3.x = INTRINSIC (_maskz_lzcnt_epi32) (mask, s.x);
+
+  CALC (s.a, res_ref);
+
+  if (UNION_CHECK (AVX512F_LEN, i_d) (res1, res_ref))
+    abort ();
+
+  MASK_MERGE (i_d) (res_ref, mask, SIZE);
+  if (UNION_CHECK (AVX512F_LEN, i_d) (res2, res_ref))
+    abort ();
+
+  MASK_ZERO (i_d) (res_ref, mask, SIZE);
+  if (UNION_CHECK (AVX512F_LEN, i_d) (res3, res_ref))
+    abort ();
+}