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19d3827efe
Unbox and unwrap the contents of `StatementKind::Coverage` The payload of coverage statements was historically a structure with several fields, so it was boxed to avoid bloating `StatementKind`. Now that the payload is a single relatively-small enum, we can replace `Box<Coverage>` with just `CoverageKind`. This patch also adds a size assertion for `StatementKind`, to avoid accidentally bloating it in the future. ``@rustbot`` label +A-code-coverage
The codegen crate contains the code to convert from MIR into LLVM IR,
and then from LLVM IR into machine code. In general it contains code
that runs towards the end of the compilation process.
For more information about how codegen works, see the rustc dev guide.