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authorBen Cheng <bccheng@google.com>2014-03-26 05:37:19 (GMT)
committerBen Cheng <bccheng@google.com>2014-03-26 05:37:19 (GMT)
commit1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch)
treec607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/gcc/testsuite/gcc.target/i386/avx2-i32gatherps-4.c
parent283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff)
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Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.target/i386/avx2-i32gatherps-4.c')
-rw-r--r--gcc-4.9/gcc/testsuite/gcc.target/i386/avx2-i32gatherps-4.c51
1 files changed, 51 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.target/i386/avx2-i32gatherps-4.c b/gcc-4.9/gcc/testsuite/gcc.target/i386/avx2-i32gatherps-4.c
new file mode 100644
index 0000000..94b9213
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.target/i386/avx2-i32gatherps-4.c
@@ -0,0 +1,51 @@
+/* { dg-do run } */
+/* { dg-require-effective-target avx2 } */
+/* { dg-options "-O2 -mavx2" } */
+
+#include <string.h>
+#include "avx2-check.h"
+
+static void
+compute_i32gatherps (float *src,
+ float *s1, int *s2, float *mask, int scale, float *r)
+{
+ int i;
+
+ for (i = 0; i < 4; ++i)
+ if ((((int *) mask)[i] >> 31) & 1)
+ r[i] = *(float *) (((unsigned char *) s1) + s2[i] * scale);
+ else
+ r[i] = src[i];
+}
+
+void static
+avx2_test (void)
+{
+ int i;
+ union128i_d idx;
+ union128 res, src, mask;
+ float s1[4], res_ref[4] = { 0 };
+
+ for (i = 0; i < 4; ++i)
+ {
+ /* Set some stuff */
+ s1[i] = 2.718281828459045 * (i + 1) * (i + 2);
+
+ /* Set src as something different from s1 */
+ src.a[i] = -s1[i];
+
+ /* Mask out evens */
+ ((int *) mask.a)[i] = i % 2 ? 0 : -1;
+
+ /* About to gather in reverse order,
+ divide by 2 to demonstrate scale */
+ idx.a[i] = (16 - (i + 1) * 4) >> 1;
+ }
+
+ res.x = _mm_mask_i32gather_ps (src.x, s1, idx.x, mask.x, 2);
+
+ compute_i32gatherps (src.a, s1, idx.a, mask.a, 2, res_ref);
+
+ if (check_union128 (res, res_ref) != 0)
+ abort ();
+}