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2025-05-27coverage: Revert "unused local file IDs" due to empty function namesZalathar-2/+2
This reverts commit 3b22c21dd8c30f499051fe7a758ca0e5d81eb638, reversing changes made to 5f292eea6d63abbd26f1e6e00a0b8cf21d828d7d.
2025-05-10coverage: Enlarge empty spans during MIR instrumentation, not codegenZalathar-2/+2
This allows us to assume that coverage spans will only be discarded during codegen in very unusual situations.
2025-05-06coverage: Only merge adjacent coverage spansZalathar-1/+2
This also removes some manipulation of the function signature span that only made sense in the context of merging non-adjacent spans.
2025-03-18coverage: Don't store a body span in `FunctionCoverageInfo`Zalathar-1/+0
2025-02-06coverage: Defer part of counter-creation until codegenZalathar-4/+4
2025-02-06coverage: Store BCB node IDs in mappings, and resolve them in codegenZalathar-5/+5
Even though the coverage graph itself is no longer available during codegen, its nodes can still be used as opaque IDs.
2024-12-19coverage: Store coverage source regions as `Span` until codegenZalathar-5/+5
2024-11-29Revert "Rollup merge of #133418 - Zalathar:spans, r=jieyouxu"Zalathar-5/+5
This reverts commit adf9b5fcd1de43eaf0a779e10612caee8b47bede, reversing changes made to af1ca153d4aed5ffe22445273aa388a8d3f8f4ae. Reverting due to <https://github.com/rust-lang/rust/issues/133606>.
2024-11-24coverage: Store coverage source regions as `Span` until codegenZalathar-5/+5
2024-11-08coverage: Restrict empty-span expansion to only cover `{` and `}`Zalathar-1/+1
2024-11-08coverage: Remove unhelpful code for handling multiple files per functionZalathar-5/+6
Functions currently can't have mappings in multiple files, and if that ever changes (e.g. to properly support expansion regions), this code will need to be completely overhauled anyway.
2024-05-14coverage: Simplify counter expressions using simple algebraZalathar-3/+1
Some of these cases currently don't occur in practice, but are included for completeness, and to avoid having to add them later as branch coverage and MC/DC coverage start building more complex expressions.
2024-04-22coverage: Move mir-opt coverage tests into a subdirectoryZalathar-0/+53