1/* { dg-do compile } */ 2/* { dg-options "-O3 -msse" } */ 3/* { dg-require-effective-target sse } */ 4#include <xmmintrin.h> 5static const __m128 v_sign = {-.0f, -.0f, -.0f, -.0f}; 6static const __m128 v_half = {0.5f, 0.5f, 0.5f, 0.5f}; 7static const __m128 v_one = {1.0f, 1.0f, 1.0f, 1.0f}; 8static 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} 18