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|
//@ needs-asm-support
//@ ignore-nvptx64
//@ ignore-spirv
#![feature(asm_const)]
use std::arch::{asm, global_asm};
fn main() {
unsafe {
// Outputs must be place expressions
asm!("{}", in(reg) 1 + 2);
asm!("{}", out(reg) 1 + 2);
//~^ ERROR invalid asm output
asm!("{}", inout(reg) 1 + 2);
//~^ ERROR invalid asm output
// Operands must be sized
let v: [u64; 3] = [0, 1, 2];
asm!("{}", in(reg) v[..]);
//~^ ERROR the size for values of type `[u64]` cannot be known at compilation time
//~| ERROR cannot use value of type `[u64]` for inline assembly
asm!("{}", out(reg) v[..]);
//~^ ERROR the size for values of type `[u64]` cannot be known at compilation time
//~| ERROR cannot use value of type `[u64]` for inline assembly
asm!("{}", inout(reg) v[..]);
//~^ ERROR the size for values of type `[u64]` cannot be known at compilation time
//~| ERROR cannot use value of type `[u64]` for inline assembly
// Constants must be... constant
let x = 0;
const fn const_foo(x: i32) -> i32 {
x
}
const fn const_bar<T>(x: T) -> T {
x
}
asm!("{}", const x);
//~^ ERROR attempt to use a non-constant value in a constant
asm!("{}", const const_foo(0));
asm!("{}", const const_foo(x));
//~^ ERROR attempt to use a non-constant value in a constant
asm!("{}", const const_bar(0));
asm!("{}", const const_bar(x));
//~^ ERROR attempt to use a non-constant value in a constant
asm!("{}", sym x);
//~^ ERROR invalid `sym` operand
// Const operands must be integers and must be constants.
asm!("{}", const 0);
asm!("{}", const 0i32);
asm!("{}", const 0i128);
asm!("{}", const 0f32);
//~^ ERROR mismatched types
asm!("{}", const 0 as *mut u8);
//~^ ERROR mismatched types
asm!("{}", const &0);
//~^ ERROR mismatched types
}
}
unsafe fn generic<T>() {
asm!("{}", sym generic::<T>);
}
// Const operands must be integers and must be constants.
global_asm!("{}", const 0);
global_asm!("{}", const 0i32);
global_asm!("{}", const 0i128);
global_asm!("{}", const 0f32);
//~^ ERROR mismatched types
global_asm!("{}", const 0 as *mut u8);
//~^ ERROR mismatched types
|
