SKIP: FAILED #version 310 es precision mediump float; void dpdxFine_f401a2() { float res = ddx_fine(1.0f); } void fragment_main() { dpdxFine_f401a2(); } void main() { fragment_main(); return; } Error parsing GLSL shader: ERROR: 0:5: 'ddx_fine' : no matching overloaded function found ERROR: 0:5: '' : compilation terminated ERROR: 2 compilation errors. No code generated.