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codegen_fn_attrs: make comment more precise #143020

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Jun 27, 2025
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codegen_fn_attrs: make comment more precise #143020

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4 changes: 3 additions & 1 deletion compiler/rustc_codegen_ssa/src/codegen_attrs.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -430,7 +430,9 @@ fn codegen_fn_attrs(tcx: TyCtxt<'_>, did: LocalDefId) -> CodegenFnAttrs {
}
}

// Apply the minimum function alignment here, so that individual backends don't have to.
// Apply the minimum function alignment here. This ensures that a function's alignment is
// determined by the `-C` flags of the crate it is defined in, not the `-C` flags of the crate
// it happens to be codegen'd (or const-eval'd) in.
codegen_fn_attrs.alignment =
Ord::max(codegen_fn_attrs.alignment, tcx.sess.opts.unstable_opts.min_function_alignment);

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