1 files changed, 64 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/i386/avx512f-vsubss-3.c b/gcc/testsuite/gcc.target/i386/avx512f-vsubss-3.c
new file mode 100644
index 00000000000..bd597c959a6
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/avx512f-vsubss-3.c
@@ -0,0 +1,64 @@
+/* { dg-do run } */
+/* { dg-options "-O2 -mavx512f" } */
+/* { dg-require-effective-target avx512f } */
+
+#include "avx512f-check.h"
+
+#include "avx512f-helper.h"
+
+#define SIZE (128 / 32)
+#include "avx512f-mask-type.h"
+
+static void
+calc_sub (float *r, float *s1, float *s2)
+{
+  r[0] = s1[0] - s2[0];
+  int i;
+  for (i = 1; i < SIZE; i++)
+    r[i] = s1[i];
+}
+
+void
+avx512f_test (void)
+{
+  int i, sign;
+  union128 res1, res2, res3, res4, src1, src2;
+  MASK_TYPE mask = 0;
+  float res_ref[SIZE];
+
+  sign = -1;
+  for (i = 0; i < SIZE; i++)
+    {
+      src1.a[i] = 1.5 + 34.67 * i * sign;
+      src2.a[i] = -22.17 * i * sign + 1.0;
+      res1.a[i] = DEFAULT_VALUE;
+      res3.a[i] = DEFAULT_VALUE;
+      sign = sign * -1;
+    }
+
+  res1.x = _mm_mask_sub_ss (res1.x, mask, src1.x, src2.x);
+  res2.x = _mm_maskz_sub_ss (mask, src1.x, src2.x);
+  res3.x = _mm_mask_sub_round_ss (res3.x, mask, src1.x, src2.x, _MM_FROUND_NO_EXC);
+  res4.x = _mm_maskz_sub_round_ss (mask, src1.x, src2.x, _MM_FROUND_NO_EXC);
+
+  calc_sub (res_ref, src1.a, src2.a);
+
+  MASK_MERGE () (res_ref, mask, 1);
+  if (check_union128 (res1, res_ref))
+    abort ();
+
+  MASK_ZERO () (res_ref, mask, 1);
+  if (check_union128 (res2, res_ref))
+    abort ();
+
+  calc_sub (res_ref, src1.a, src2.a);
+
+  MASK_MERGE () (res_ref, mask, 1);
+  if (check_union128 (res3, res_ref))
+    abort ();
+
+  MASK_ZERO () (res_ref, mask, 1);
+  if (check_union128 (res4, res_ref))
+    abort ();
+}
+