| ### Compilation failed: | |
| error: 3: global variable initializer must be a constant expression | |
| error: 4: variables of type 'sampler' must be global | |
| error: 5: variables of type 'sampler' must be global | |
| error: 5: opaque type 'sampler' cannot use initializer expressions | |
| error: 6: assignments to opaque type 'sampler' are not permitted | |
| 5 errors |