/* { dg-do compile } */ /* { dg-options "-O3 -msse" } */ #include static const __m128 v_sign = {-.0f, -.0f, -.0f, -.0f}; static const __m128 v_half = {0.5f, 0.5f, 0.5f, 0.5f}; static const __m128 v_one = {1.0f, 1.0f, 1.0f, 1.0f}; static inline __m128 insn_ABS (__m128 a) { return _mm_andnot_ps (v_sign, a); } __m128 voodoo (__m128 a) { __m128 x = insn_ABS (a), y = _mm_rsqrt_ps (x); y = _mm_add_ps (_mm_mul_ps (_mm_sub_ps (_mm_setzero_ps(), _mm_sub_ps (_mm_mul_ps (x, _mm_add_ps (_mm_mul_ps (y, y), _mm_setzero_ps())), v_one)), _mm_add_ps (_mm_mul_ps (y, v_half), _mm_setzero_ps())), y); return y; }