1  /* { dg-do compile } */
       2  /* { dg-options "-O3 -msse" } */
       3  
       4  #include <xmmintrin.h>
       5  static const __m128 v_sign = {-.0f, -.0f, -.0f, -.0f};
       6  static const __m128 v_half = {0.5f, 0.5f, 0.5f, 0.5f};
       7  static const __m128 v_one  = {1.0f, 1.0f, 1.0f, 1.0f};
       8  static inline __m128 insn_ABS (__m128 a)
       9  {
      10    return _mm_andnot_ps (v_sign, a);
      11  }
      12  __m128 voodoo (__m128 a)
      13  {
      14    __m128 x = insn_ABS (a), y = _mm_rsqrt_ps (x);
      15    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);
      16    return y;
      17  }