bgfx/3rdparty/glsl-optimizer/tests/fragment/opt-copypropelems-swizzle-out.txt

uniform sampler2D tex;
varying vec2 uv;
void main ()
{
  vec4 v_1;
  vec4 tmpvar_2;
  tmpvar_2 = texture2D (tex, uv);
  v_1.zw = tmpvar_2.zw;
  v_1.y = tmpvar_2.x;
  v_1.x = -(tmpvar_2.y);
  gl_FragColor = v_1;
}