diff options
Diffstat (limited to 'gcc-4.8/gcc/testsuite/gcc.target/i386/avx2-i32gatherpd256-4.c')
-rw-r--r-- | gcc-4.8/gcc/testsuite/gcc.target/i386/avx2-i32gatherpd256-4.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/gcc-4.8/gcc/testsuite/gcc.target/i386/avx2-i32gatherpd256-4.c b/gcc-4.8/gcc/testsuite/gcc.target/i386/avx2-i32gatherpd256-4.c new file mode 100644 index 000000000..f24acbd7f --- /dev/null +++ b/gcc-4.8/gcc/testsuite/gcc.target/i386/avx2-i32gatherpd256-4.c @@ -0,0 +1,52 @@ +/* { dg-do run } */ +/* { dg-require-effective-target avx2 } */ +/* { dg-options "-O2 -mavx2" } */ + +#include <string.h> +#include "avx2-check.h" + +static void +compute_i32gatherpd256 (double *src, + double *s1, + int *s2, double *mask, int scale, double *r) +{ + int i; + + for (i = 0; i < 4; ++i) + if ((((long long *) mask)[i] >> 63) & 1) + r[i] = *(double *) (((unsigned char *) s1) + s2[i] * scale); + else + r[i] = src[i]; +} + +void static +avx2_test (void) +{ + int i; + union128i_d idx; + union256d res, src, mask; + double 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 */ + ((long long *) 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) * 8) >> 1; + } + + res.x = _mm256_mask_i32gather_pd (src.x, s1, idx.x, mask.x, 2); + + compute_i32gatherpd256 (src.a, s1, idx.a, mask.a, 2, res_ref); + + if (check_union256d (res, res_ref) != 0) + abort (); +} |