diff options
Diffstat (limited to 'gcc-4.8/gcc/testsuite/gcc.target/i386/avx2-i32gatherq256-2.c')
-rw-r--r-- | gcc-4.8/gcc/testsuite/gcc.target/i386/avx2-i32gatherq256-2.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/gcc-4.8/gcc/testsuite/gcc.target/i386/avx2-i32gatherq256-2.c b/gcc-4.8/gcc/testsuite/gcc.target/i386/avx2-i32gatherq256-2.c new file mode 100644 index 000000000..85e576797 --- /dev/null +++ b/gcc-4.8/gcc/testsuite/gcc.target/i386/avx2-i32gatherq256-2.c @@ -0,0 +1,41 @@ +/* { dg-do run } */ +/* { dg-require-effective-target avx2 } */ +/* { dg-options "-O2 -mavx2" } */ + +#include <string.h> +#include "avx2-check.h" + +static void +compute_i32gatherpd256 (long long *s1, int *s2, int scale, long long *r) +{ + long long i; + + for (i = 0; i < 4; ++i) + r[i] = *(long long *) (((unsigned char *) s1) + s2[i] * scale); +} + +void static +avx2_test (void) +{ + long long i; + union128i_d idx; + union256i_q res; + long long s1[4], res_ref[4] = { 0 }; + + for (i = 0; i < 4; ++i) + { + /* Set some stuff */ + s1[i] = 1983 * (i + 1) * (i + 2); + + /* About to gather in reverse order, + divide by 2 to demonstrate scale */ + idx.a[i] = (32 - (i + 1) * 8) >> 1; + } + + res.x = _mm256_i32gather_epi64 ((long long int *) s1, idx.x, 2); + + compute_i32gatherpd256 (s1, idx.a, 2, res_ref); + + if (check_union256i_q (res, res_ref) != 0) + abort (); +} |