| SKIP: FAILED | 
 |  | 
 |  | 
 | enable chromium_experimental_framebuffer_fetch; | 
 |  | 
 | fn g(a : f32, b : f32, c : f32) { | 
 | } | 
 |  | 
 | struct In { | 
 |   @builtin(position) | 
 |   pos : vec4f, | 
 |   @location(0) | 
 |   uv : vec4f, | 
 |   @color(0) | 
 |   fbf : vec4f, | 
 | } | 
 |  | 
 | @fragment | 
 | fn f(tint_symbol : In) { | 
 |   g(tint_symbol.pos.x, tint_symbol.uv.x, tint_symbol.fbf.y); | 
 | } | 
 |  | 
 | Failed to generate: <dawn>/test/tint/extensions/texel_fetch/additional_params/c.wgsl:2:8 error: GLSL backend does not support extension 'chromium_experimental_framebuffer_fetch' | 
 | enable chromium_experimental_framebuffer_fetch; | 
 |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | 
 |  |