rust/tests/ui/asm/naked-functions-unused.rs
2023-01-11 09:32:08 +00:00

88 lines
2.3 KiB
Rust

// revisions: x86_64 aarch64
// needs-asm-support
//[x86_64] only-x86_64
//[aarch64] only-aarch64
#![deny(unused)]
#![feature(naked_functions)]
#![crate_type = "lib"]
pub trait Trait {
extern "C" fn trait_associated(a: usize, b: usize) -> usize;
extern "C" fn trait_method(&self, a: usize, b: usize) -> usize;
}
pub mod normal {
use std::arch::asm;
pub extern "C" fn function(a: usize, b: usize) -> usize {
//~^ ERROR unused variable: `a`
//~| ERROR unused variable: `b`
unsafe { asm!("", options(noreturn)); }
}
pub struct Normal;
impl Normal {
pub extern "C" fn associated(a: usize, b: usize) -> usize {
//~^ ERROR unused variable: `a`
//~| ERROR unused variable: `b`
unsafe { asm!("", options(noreturn)); }
}
pub extern "C" fn method(&self, a: usize, b: usize) -> usize {
//~^ ERROR unused variable: `a`
//~| ERROR unused variable: `b`
unsafe { asm!("", options(noreturn)); }
}
}
impl super::Trait for Normal {
extern "C" fn trait_associated(a: usize, b: usize) -> usize {
//~^ ERROR unused variable: `a`
//~| ERROR unused variable: `b`
unsafe { asm!("", options(noreturn)); }
}
extern "C" fn trait_method(&self, a: usize, b: usize) -> usize {
//~^ ERROR unused variable: `a`
//~| ERROR unused variable: `b`
unsafe { asm!("", options(noreturn)); }
}
}
}
pub mod naked {
use std::arch::asm;
#[naked]
pub extern "C" fn function(a: usize, b: usize) -> usize {
unsafe { asm!("", options(noreturn)); }
}
pub struct Naked;
impl Naked {
#[naked]
pub extern "C" fn associated(a: usize, b: usize) -> usize {
unsafe { asm!("", options(noreturn)); }
}
#[naked]
pub extern "C" fn method(&self, a: usize, b: usize) -> usize {
unsafe { asm!("", options(noreturn)); }
}
}
impl super::Trait for Naked {
#[naked]
extern "C" fn trait_associated(a: usize, b: usize) -> usize {
unsafe { asm!("", options(noreturn)); }
}
#[naked]
extern "C" fn trait_method(&self, a: usize, b: usize) -> usize {
unsafe { asm!("", options(noreturn)); }
}
}
}