Rich Kadel 51d692cf77 Tools, tests, and experimenting with MIR-derived coverage counters ... Adds a new mir_dump output file in HTML/CSS to visualize code regions and the MIR features that they came from (including overlapping spans). See example below: Includes a basic, MIR-block-based implementation of coverage injection, available via `-Zexperimental-coverage`. This implementation has known flaws and omissions, but is simple enough to validate the new tools and tests. The existing `-Zinstrument-coverage` option currently enables function-level coverage only, which at least appears to generate accurate coverage reports at that level. Experimental coverage is not accurate at this time. When branch coverage works as intended, the `-Zexperimental-coverage` option should be removed. This PR replaces the bulk of PR #75828, with the remaining parts of that PR distributed among other separate and indentpent PRs. This PR depends on three of those other PRs: #76000, #76002, and Rust compiler MCP rust-lang/compiler-team#278 Relevant issue: #34701 - Implement support for LLVMs code coverage instrumentation 		2020-09-03 00:20:29 -07:00
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src	Tools, tests, and experimenting with MIR-derived coverage counters	2020-09-03 00:20:29 -07:00
Cargo.toml	mv compiler to compiler/	2020-08-30 18:45:07 +03:00