Function ynan_ss

test/pthread/test_pthread_mandelbrot.cpp:179–179

int xnan_ss(__m128 m) { return !_mm_ucomige_ss(m, m); }
int ynan_ss(__m128 m) { return xnan_ss(_mm_shuffle_ps(m, m, _MM_SHUFFLE(1,1,1,1))); }
int znan_ss(__m128 m) { return xnan_ss(_mm_movehl_ps(m, m)); }
int wnan_ss(__m128 m) { return xnan_ss(_mm_shuffle_ps(m, m, _MM_SHUFFLE(3,3,3,3))); }