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