Merge remote-tracking branch 'gnu/gcc-4_7-branch' into rework

[pf3gnuchains/gcc-fork.git] / gcc / testsuite / gcc.target / i386 / avx2-vpblendvb-2.c

diff --git a/gcc/testsuite/gcc.target/i386/avx2-vpblendvb-2.c b/gcc/testsuite/gcc.target/i386/avx2-vpblendvb-2.c
new file mode 100644 (file)
index 0000000..c0e1d71
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/avx2-vpblendvb-2.c
@@ -0,0 +1,56 @@
+/* { dg-do run } */
+/* { dg-options "-mavx2 -O2" } */
+/* { dg-require-effective-target avx2 } */
+
+#include "avx2-check.h"
+#include <string.h>
+
+#define NUM 20
+
+static void
+init_pblendb (char *src1, char *src2, char *mask, int seed)
+{
+  int i, sign = 1;
+
+  for (i = 0; i < 32; i++)
+    {
+      src1[i] = (i + seed) * (i + seed) * sign;
+      src2[i] = (i + seed + 20) * sign;
+      sign = -sign;
+
+      if (sign > 0)
+       mask[i] = 1 << 7;
+      else
+       mask[i] = 0;
+    }
+}
+
+static void
+calc_pblendb (char *src1, char *src2, char *mask, char *dst)
+{
+  int i;
+
+  memcpy (dst, src1, 32);
+  for (i = 0; i < 32; i++)
+    if (mask[i] & (1 << 7))
+      dst[i] = src2[i];
+}
+
+static void
+avx2_test (void)
+{
+  union256i_b src1, src2, mask, dst;
+  char dst_ref[32];
+  int i;
+
+  for (i = 0; i < NUM; i++)
+    {
+      init_pblendb (src1.a, src2.a, mask.a, i);
+
+      dst.x = _mm256_blendv_epi8 (src1.x, src2.x, mask.x);
+      calc_pblendb (src1.a, src2.a, mask.a, dst_ref);
+
+      if (check_union256i_b (dst, dst_ref))
+       abort ();
+    }
+}