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#include CHECK_H static __m128i __attribute__((noinline)) foo (short *v) { return _mm_set_epi16 (v[7], v[6], v[5], v[4], v[3], v[2], v[1], v[0]); } static void TEST (void) { short v[8] = { -3, 6000, 48, 104, -90, 34567, -1248, 34678 }; union128i_w u; u.x = foo (v); if (check_union128i_w (u, v)) abort (); }