bgfx/3rdparty/glsl-optimizer/tests/fragment/struct-unused-ir.txt

struct SurfaceOutput {
  vec4 color;
};
void main ()
{
  SurfaceOutput o_1;
  vec4 tmpvar_2;
  tmpvar_2 = vec4(0.0, 0.0, 0.0, 0.0);
  gl_FragColor = tmpvar_2;
}