diff options
Diffstat (limited to 'gcc/testsuite/gcc.target/i386/avx2-i32gatherps-2.c')
-rw-r--r-- | gcc/testsuite/gcc.target/i386/avx2-i32gatherps-2.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/i386/avx2-i32gatherps-2.c b/gcc/testsuite/gcc.target/i386/avx2-i32gatherps-2.c new file mode 100644 index 00000000000..1174ddad516 --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/avx2-i32gatherps-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_i32gatherps (float *s1, int *s2, int scale, float *r) +{ + int i; + + for (i = 0; i < 4; ++i) + r[i] = *(float *) (((unsigned char *) s1) + s2[i] * scale); +} + +void static +avx2_test (void) +{ + int i; + union128i_d idx; + union128 res; + float s1[4], res_ref[4] = { 0 }; + + for (i = 0; i < 4; ++i) + { + /* Set some stuff */ + s1[i] = 2.718281828459045 * (i + 1) * (i + 2); + + /* About to gather in reverse order, + divide by 2 to demonstrate scale */ + idx.a[i] = (16 - (i + 1) * 4) >> 1; + } + + res.x = _mm_i32gather_ps (s1, idx.x, 2); + + compute_i32gatherps (s1, idx.a, 2, res_ref); + + if (check_union128 (res, res_ref) != 0) + abort (); +} |