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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [testsuite/] [gcc.target/] [i386/] [avx2-i64gatherps256-2.c] - Rev 848
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/* { dg-do run } */ /* { dg-require-effective-target avx2 } */ /* { dg-options "-O2 -mavx2" } */ #include <string.h> #include "avx2-check.h" static void compute_i64gatherps256 (float *s1, long long *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; union256i_q idx; union128 res; float s1[8], 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 = _mm256_i64gather_ps (s1, idx.x, 2); compute_i64gatherps256 (s1, idx.a, 2, res_ref); if (check_union128 (res, res_ref) != 0) abort (); }
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