mirror of
				https://github.com/rust-lang/rust.git
				synced 2025-11-03 22:49:17 +00:00 
			
		
		
		
	
		
			
				
	
	
		
			26 lines
		
	
	
		
			716 B
		
	
	
	
		
			Rust
		
	
	
	
	
	
			
		
		
	
	
			26 lines
		
	
	
		
			716 B
		
	
	
	
		
			Rust
		
	
	
	
	
	
//@ assembly-output: emit-asm
 | 
						|
//@ compile-flags: -Zinstrument-xray=always -Cllvm-args=-x86-asm-syntax=intel
 | 
						|
 | 
						|
//@ revisions: x86_64-linux
 | 
						|
//@[x86_64-linux] compile-flags: --target=x86_64-unknown-linux-gnu
 | 
						|
//@[x86_64-linux] needs-llvm-components: x86
 | 
						|
//@[x86_64-linux] only-x86_64-unknown-linux-gnu
 | 
						|
 | 
						|
//@ revisions: x86_64-darwin
 | 
						|
//@[x86_64-darwin] compile-flags: --target=x86_64-apple-darwin
 | 
						|
//@[x86_64-darwin] needs-llvm-components: x86
 | 
						|
//@[x86_64-darwin] only-x86_64-apple-darwin
 | 
						|
 | 
						|
#![crate_type = "lib"]
 | 
						|
 | 
						|
// CHECK-LABEL: xray_func:
 | 
						|
#[no_mangle]
 | 
						|
pub fn xray_func() {
 | 
						|
    // CHECK: nop word ptr [rax + rax + 512]
 | 
						|
 | 
						|
    std::hint::black_box(());
 | 
						|
 | 
						|
    // CHECK: ret
 | 
						|
    // CHECK-NEXT: nop word ptr cs:[rax + rax + 512]
 | 
						|
}
 |