rust/tests/coverage-map/trivial.cov-map

Function name: trivial::main
Raw bytes (9): 0x[01, 01, 00, 01, 01, 03, 01, 00, 0d]
Number of files: 1
- file 0 => global file 1
Number of expressions: 0
Number of file 0 mappings: 1
- Code(Counter(0)) at (prev + 3, 1) to (start + 0, 13)
Add test suite `coverage-map` to test coverage mappings emitted by LLVM We compile each test file to LLVM IR assembly, and then pass that IR to a dedicated program that can decode LLVM coverage maps and print them in a more human-readable format. We can then check that output against known-good snapshots. This test suite has some advantages over the existing `run-coverage` tests: - We can test coverage instrumentation without needing to run target binaries. - We can observe subtle improvements/regressions in the underlying coverage mappings that don't make a visible difference to coverage reports. 2023-08-14 13:00:28 +10:00			`Function name: trivial::main`
			`Raw bytes (9): 0x[01, 01, 00, 01, 01, 03, 01, 00, 0d]`
			`Number of files: 1`
			`- file 0 => global file 1`
			`Number of expressions: 0`
			`Number of file 0 mappings: 1`
			`- Code(Counter(0)) at (prev + 3, 1) to (start + 0, 13)`