|  | //! Ensure "forbidden" target features cannot be disabled via `-Ctarget-feature`. | 
|  | //@ compile-flags: --target=riscv32e-unknown-none-elf --crate-type=lib | 
|  | //@ needs-llvm-components: riscv | 
|  | //@ compile-flags: -Ctarget-feature=-forced-atomics | 
|  | // For now this is just a warning. | 
|  | //@ build-pass | 
|  |  | 
|  | #![feature(no_core, lang_items)] | 
|  | #![no_core] | 
|  |  | 
|  | #[lang = "pointee_sized"] | 
|  | pub trait PointeeSized {} | 
|  |  | 
|  | #[lang = "meta_sized"] | 
|  | pub trait MetaSized: PointeeSized {} | 
|  |  | 
|  | #[lang = "sized"] | 
|  | pub trait Sized: MetaSized {} | 
|  |  | 
|  | //~? WARN target feature `forced-atomics` cannot be disabled with `-Ctarget-feature`: unsound because it changes the ABI of atomic operations |