问SIMD编程：“模式'V4SF‘应用于不适当的类型”错误

EN

#include <stdio.h>
typedef int v4sf __attribute__ ((mode(V4SF))); // vector of four single floats

union f4vector
{
  v4sf v;
  float f[4];
};
int main()
{
  union f4vector a, b, c;

  a.f[0] = 1; a.f[1] = 2; a.f[2] = 3; a.f[3] = 4;
  b.f[0] = 5; b.f[1] = 6; b.f[2] = 7; b.f[3] = 8;

  c.v = a.v + b.v;

  printf("%f, %f, %f, %f\n", c.f[0], c.f[1], c.f[2], c.f[3]);
}

C:\Things\New Text Document.c|2|warning: specifying vector types with __attribute__ ((mode)) is deprecated [-Wattributes]|
C:\Things\New Text Document.c|2|warning: use __attribute__ ((vector_size)) instead [-Wattributes]|
C:\Things\New Text Document.c|2|error: mode 'V4SF' applied to inappropriate type|
||=== Build failed: 1 error(s), 2 warning(s) (0 minute(s), 0 second(s)) ===|