coverage: Tidy up early parts of the instrumentor pass #118929
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Some changes occurred to MIR optimizations cc @rust-lang/wg-mir-opt |
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Changes in this patch: - Extract local variable `def_id` - Check `is_fn_like` without retrieving HIR - Inline some locals that are used once and aren't needed for clarity
We can just as easily look it up again from the source map and body span when needed.
If we want to know whether two byte positions are in the same file, we don't need to clone and compare `Lrc<SourceFile>`; we can just get their indices and compare those instead.
This will normally be true, but in cases where it's not true we're better off not making any assumptions about the signature.
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…iaskrgr Rollup of 3 pull requests Successful merges: - rust-lang#116888 (Add discussion that concurrent access to the environment is unsafe) - rust-lang#118888 (Uplift `TypeAndMut` and `ClosureKind` to `rustc_type_ir`) - rust-lang#118929 (coverage: Tidy up early parts of the instrumentor pass) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup merge of rust-lang#118929 - Zalathar:look-hir, r=cjgillot coverage: Tidy up early parts of the instrumentor pass This is extracted from rust-lang#118237, which needed to be manually rebased anyway. Unlike that PR, this one only affects the coverage instrumentor, and doesn't attempt to move any code into the MIR builder. That can be left to a future version of rust-lang#118305, which can still benefit from these improvements. So this is now mostly a refactoring of some internal parts of the instrumentor.
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This is extracted from #118237, which needed to be manually rebased anyway.
Unlike that PR, this one only affects the coverage instrumentor, and doesn't attempt to move any code into the MIR builder. That can be left to a future version of #118305, which can still benefit from these improvements.
So this is now mostly a refactoring of some internal parts of the instrumentor.