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Diffstat (limited to 'compiler/rustc_error_codes/src/error_codes/E0779.md')
-rw-r--r-- | compiler/rustc_error_codes/src/error_codes/E0779.md | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/compiler/rustc_error_codes/src/error_codes/E0779.md b/compiler/rustc_error_codes/src/error_codes/E0779.md new file mode 100644 index 000000000..146e20c26 --- /dev/null +++ b/compiler/rustc_error_codes/src/error_codes/E0779.md @@ -0,0 +1,32 @@ +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 |