Suggest including unused asm arguments in a comment to avoid error #73230
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Rollup of 7 pull requests Successful merges: - rust-lang#72180 (remove extra space from crate-level doctest names) - rust-lang#73012 (Show `SyntaxContext` in formatted `Span` debug output) - rust-lang#73097 (Try_run must only be used if toolstate is populated) - rust-lang#73169 (Handle assembler warnings properly) - rust-lang#73182 (Track span of function in method calls, and use this in #[track_caller]) - rust-lang#73207 (Clean up E0648 explanation) - rust-lang#73230 (Suggest including unused asm arguments in a comment to avoid error) Failed merges: r? @ghost
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We require all arguments to an
asm!to be used in the template string, just like format strings. However in some cases (e.g.black_box) it may be desirable to haveasm!arguments that are not used in the template string.Currently this is a hard error rather than a lint since
#[allow]does not work on macros (#63221), so this PR suggests using the unused arguments in an asm comment as a workaround.r? @petrochenkov