SKIP: FAILED

#version 310 es
precision mediump float;

struct tint_padded_array_element {
  float el;
};
struct buf0 {
  tint_padded_array_element x_GLF_uniform_float_values[2];
};
struct tint_padded_array_element_1 {
  int el;
};
struct buf1 {
  tint_padded_array_element_1 x_GLF_uniform_int_values[3];
};

layout(binding = 0) uniform buf0_1 {
  tint_padded_array_element x_GLF_uniform_float_values[2];
} x_6;
layout(binding = 1) uniform buf1_1 {
  tint_padded_array_element_1 x_GLF_uniform_int_values[3];
} x_11;
vec4 x_GLF_color = vec4(0.0f, 0.0f, 0.0f, 0.0f);

void main_1() {
  float a = 0.0f;
  float b = 0.0f;
  float c = 0.0f;
  int i = 0;
  float x_35 = x_6.x_GLF_uniform_float_values[1].el;
  a = x_35;
  float x_37 = x_6.x_GLF_uniform_float_values[1].el;
  b = x_37;
  float x_39 = x_6.x_GLF_uniform_float_values[1].el;
  c = x_39;
  int x_41 = x_11.x_GLF_uniform_int_values[1].el;
  i = x_41;
  while (true) {
    int x_46 = i;
    int x_48 = x_11.x_GLF_uniform_int_values[0].el;
    if ((x_46 < x_48)) {
    } else {
      break;
    }
    int x_51 = i;
    int x_53 = x_11.x_GLF_uniform_int_values[2].el;
    if ((x_51 == x_53)) {
      float x_57 = a;
      float x_60 = x_6.x_GLF_uniform_float_values[1].el;
      b = (ddx(x_57) + x_60);
    }
    c = ddx(a);
    a = (c / b);
    {
      i = (i + 1);
    }
  }
  float x_69 = a;
  float x_71 = x_6.x_GLF_uniform_float_values[0].el;
  if ((x_69 == x_71)) {
    int x_77 = x_11.x_GLF_uniform_int_values[2].el;
    int x_80 = x_11.x_GLF_uniform_int_values[1].el;
    int x_83 = x_11.x_GLF_uniform_int_values[1].el;
    int x_86 = x_11.x_GLF_uniform_int_values[2].el;
    x_GLF_color = vec4(float(x_77), float(x_80), float(x_83), float(x_86));
  } else {
    int x_90 = x_11.x_GLF_uniform_int_values[1].el;
    float x_91 = float(x_90);
    x_GLF_color = vec4(x_91, x_91, x_91, x_91);
  }
  return;
}

struct main_out {
  vec4 x_GLF_color_1;
};
struct tint_symbol_1 {
  vec4 x_GLF_color_1;
};

main_out tint_symbol_inner() {
  main_1();
  main_out tint_symbol_2 = main_out(x_GLF_color);
  return tint_symbol_2;
}

tint_symbol_1 tint_symbol() {
  main_out inner_result = tint_symbol_inner();
  tint_symbol_1 wrapper_result = tint_symbol_1(vec4(0.0f, 0.0f, 0.0f, 0.0f));
  wrapper_result.x_GLF_color_1 = inner_result.x_GLF_color_1;
  return wrapper_result;
}
layout(location = 0) out vec4 x_GLF_color_1;
void main() {
  tint_symbol_1 outputs;
  outputs = tint_symbol();
  x_GLF_color_1 = outputs.x_GLF_color_1;
}


Error parsing GLSL shader:
ERROR: 0:50: 'ddx' : no matching overloaded function found 
ERROR: 0:50: '' : compilation terminated 
ERROR: 2 compilation errors.  No code generated.