Static rustc_lint::builtin::NAMED_ASM_LABELS

source ·
pub static NAMED_ASM_LABELS: &Lint
Expand description

The named_asm_labels lint detects the use of named labels in the inline asm! macro.


use std::arch::asm;

fn main() {
    unsafe {
        asm!("foo: bar");



LLVM is allowed to duplicate inline assembly blocks for any reason, for example when it is in a function that gets inlined. Because of this, GNU assembler local labels must be used instead of labels with a name. Using named labels might cause assembler or linker errors.

See the explanation in Rust By Example for more details.