| An unknown argument was given to the `instruction_set` attribute. |
| |
| Erroneous code example: |
| |
| ```compile_fail,E0779 |
| #![feature(isa_attribute)] |
| |
| #[instruction_set(intel::x64)] // error: invalid argument |
| pub fn something() {} |
| fn main() {} |
| ``` |
| |
| The `instruction_set` attribute only supports two arguments currently: |
| |
| * arm::a32 |
| * arm::t32 |
| |
| All other arguments given to the `instruction_set` attribute will return this |
| error. Example: |
| |
| ``` |
| #![feature(isa_attribute)] |
| |
| #[cfg_attr(target_arch="arm", instruction_set(arm::a32))] // ok! |
| pub fn something() {} |
| fn main() {} |
| ``` |
| |
| For more information see the [`instruction_set` attribute][isa-attribute] |
| section of the Reference. |
| |
| [isa-attribute]: https://doc.rust-lang.org/reference/attributes/codegen.html |
