SKIP: FAILED #version 310 es precision mediump float; void dpdyCoarse_870a7e() { float res = ddy_coarse(1.0f); } void fragment_main() { dpdyCoarse_870a7e(); return; } void main() { fragment_main(); } Error parsing GLSL shader: ERROR: 0:5: 'ddy_coarse' : no matching overloaded function found ERROR: 0:5: '' : compilation terminated ERROR: 2 compilation errors. No code generated.