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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [testsuite/] [gcc.target/] [i386/] [avx2-i64gatherd256-4.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 (int *src, int *s1, long long *s2, int *mask, int scale, int *r) { int i; for (i = 0; i < 4; ++i) if ((mask[i] >> 31) & 1) r[i] = *(int *) (((unsigned char *) s1) + s2[i] * scale); else r[i] = src[i]; } void static avx2_test (void) { int i; union256i_q idx; union128i_d res, src, mask; int s1[4], res_ref[4] = { 0 }; for (i = 0; i < 4; ++i) { /* Set some stuff */ s1[i] = 1973 * (i + 1) * (i + 2); /* Set src as something different from s1 */ src.a[i] = -s1[i]; /* Mask out evens */ 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 = _mm256_mask_i64gather_epi32 (src.x, s1, idx.x, mask.x, 2); compute_i64gatherps256 (src.a, s1, idx.a, mask.a, 2, res_ref); if (check_union128i_d (res, res_ref) != 0) abort (); }
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