SKIP: FAILED #version 310 es precision mediump float; void dpdxCoarse_029152() { float res = ddx_coarse(1.0f); } void fragment_main() { dpdxCoarse_029152(); } void main() { fragment_main(); return; } Error parsing GLSL shader: ERROR: 0:5: 'ddx_coarse' : no matching overloaded function found ERROR: 0:5: '' : compilation terminated ERROR: 2 compilation errors. No code generated.