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2025-08-06coverage: Remove all unstable support for MC/DC instrumentationZalathar-16/+0
2025-08-04coverage: Simplify access to debug/testing `-Zcoverage-options` flagsZalathar-1/+1
2025-08-04coverage: Hoist `counter_for_bcb` out of its loopZalathar-10/+10
Having this helper function in the loop was confusing, because it doesn't rely on anything that changes between loop iterations.
2025-08-04coverage: Include an `Instance` in `CovfunRecord` for debug messagesZalathar-1/+6
2025-07-30coverage: Re-land "Enlarge empty spans during MIR instrumentation"Zalathar-24/+4
This allows us to assume that coverage spans will only be discarded during codegen in very unusual situations.
2025-07-26Revert "coverage: Enlarge empty spans during MIR instrumentation, not codegen"Zalathar-4/+24
This reverts commit f877aa7d14916f71a2f88c6d4c009e7ded7684c4.
2025-07-22coverage: Enlarge empty spans during MIR instrumentation, not codegenZalathar-24/+4
This allows us to assume that coverage spans will only be discarded during codegen in very unusual situations.
2025-05-28Remove methods from StaticCodegenMethods that are not called in cg_ssa itselfbjorn3-3/+1
2025-05-28Remove a couple of uses of interior mutability around staticsbjorn3-1/+1
2025-05-27coverage: Revert "unused local file IDs" due to empty function namesZalathar-38/+34
This reverts commit 3b22c21dd8c30f499051fe7a758ca0e5d81eb638, reversing changes made to 5f292eea6d63abbd26f1e6e00a0b8cf21d828d7d.
2025-05-10coverage: Detect unused local file IDs to avoid an LLVM assertionZalathar-0/+24
This case can't actually happen yet (other than via a testing flag), because currently all of a function's spans must belong to the same file and expansion. But this will be an important edge case when adding expansion region support.
2025-05-10coverage: Hoist `counter_for_bcb` out of its loopZalathar-10/+10
Having this helper function in the loop was confusing, because it doesn't rely on anything that changes between loop iterations.
2025-05-10coverage: Enlarge empty spans during MIR instrumentation, not codegenZalathar-24/+4
This allows us to assume that coverage spans will only be discarded during codegen in very unusual situations.
2025-05-05Rename Instance::new to Instance::new_raw and add a note that it is rawMichael Goulet-1/+1
2025-04-07coverage: Build the CGU's global file table as late as possibleZalathar-19/+27
2025-04-06coverage: Deal with unused functions and their names in one placeZalathar-10/+46
2025-04-06coverage: Extract module `mapgen::unused` for handling unused functionsZalathar-0/+128
2025-03-20coverage: Convert and check span coordinates without a local file IDZalathar-27/+40
For expansion region support, we will want to be able to convert and check spans before creating a corresponding local file ID. If we create local file IDs eagerly, but some expansion turns out to have no successfully-converted spans, LLVM will complain about that expansion's file ID having no regions.
2025-03-20coverage: Add LLVM plumbing for expansion regionsZalathar-3/+8
This is currently unused, but paves the way for future work on expansion regions without having to worry about the FFI parts.
2025-03-18coverage: Don't store a body span in `FunctionCoverageInfo`Zalathar-2/+7
2025-03-18coverage: Don't refer to the body span when enlarging empty spansZalathar-26/+9
Given that we now only enlarge empty spans to "{" or "}", there shouldn't be any danger of enlarging beyond a function body.
2025-02-24Remove inherent function that has a trait method duplicate of a commonly ↵Oli Scherer-1/+1
imported trait
2025-02-06coverage: Remove the old code for simplifying counters after MIR optsZalathar-16/+9
2025-02-06coverage: Defer part of counter-creation until codegenZalathar-9/+4
2025-02-06coverage: Store BCB node IDs in mappings, and resolve them in codegenZalathar-12/+17
Even though the coverage graph itself is no longer available during codegen, its nodes can still be used as opaque IDs.
2025-01-24coverage: Make query `coverage_ids_info` return an OptionZalathar-1/+1
This reflects the fact that we can't compute meaningful info for a function that wasn't instrumented and therefore doesn't have `function_coverage_info`.
2024-12-19coverage: Add a synthetic test for when all spans are discardedZalathar-0/+11
2024-12-19coverage: Identify source files by ID, not by interned filenameZalathar-5/+3
2024-12-19coverage: Store coverage source regions as `Span` until codegenZalathar-3/+137
2024-12-19coverage: Quietly skip functions that end up having no mappingsZalathar-7/+2
In codegen, a used function with `FunctionCoverageInfo` but no mappings has historically indicated a bug. However, that will no longer be the case after moving some fallible span-processing steps into codegen.
2024-12-19coverage: Rename some FFI fields from `span` to `cov_span`Zalathar-5/+6
This will avoid confusion with actual `Span` spans.
2024-12-17coverage: Pull function source hash out of `map_data.rs`Zalathar-5/+4
2024-12-17coverage: Pull region conversion out of `map_data.rs`Zalathar-13/+13
2024-12-17coverage: Pull expression conversion out of `map_data.rs`Zalathar-2/+43
2024-12-17coverage: Build the global file table on the flyZalathar-2/+2
2024-12-12coverage: Tidy up creation of covfun recordsZalathar-30/+29
2024-12-11coverage: Store intermediate region tables in `CovfunRecord`Zalathar-46/+41
This defers the call to `llvm_cov::write_function_mappings_to_buffer` until just before its enclosing global variable is created.
2024-12-11coverage: Reify `CovfunRecord` as an intermediate stepZalathar-26/+33
2024-12-11coverage: Extract function metadata handling to a `covfun` submoduleZalathar-0/+198
2024-11-29Revert "Rollup merge of #133418 - Zalathar:spans, r=jieyouxu"Zalathar-124/+0
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-0/+124