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| author | Rich Kadel <richkadel@google.com> | 2020-06-18 13:29:43 -0700 |
|---|---|---|
| committer | Rich Kadel <richkadel@google.com> | 2020-06-19 09:52:04 -0700 |
| commit | 8c7c84b4e8923779ff56a518e4cd39c1c600c7d0 (patch) | |
| tree | b53de4f77fa3254afc910867a2b5a273918217ed /src/librustc_session | |
| parent | 791ccccddc18e83faa9963824112b14b3b1a93c2 (diff) | |
code coverage foundation for hash and num_counters
Replaced dummy values for hash and num_counters with computed values, and refactored InstrumentCoverage pass to simplify injecting more counters per function in upcoming versions. Improved usage documentation and error messaging.
Diffstat (limited to 'src/librustc_session')
| -rw-r--r-- | src/librustc_session/options.rs | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/librustc_session/options.rs b/src/librustc_session/options.rs index 2d231359057..c2d056ad26d 100644 --- a/src/librustc_session/options.rs +++ b/src/librustc_session/options.rs @@ -877,8 +877,9 @@ options! {DebuggingOptions, DebuggingSetter, basic_debugging_options, (such as entering an empty infinite loop) by inserting llvm.sideeffect \ (default: no)"), instrument_coverage: bool = (false, parse_bool, [TRACKED], - "instrument the generated code with LLVM code region counters to \ - (in the future) generate coverage reports (experimental; default: no)"), + "instrument the generated code with LLVM code region counters to (in the \ + future) generate coverage reports (default: no; note, the compiler build \ + config must include `profiler = true`)"), instrument_mcount: bool = (false, parse_bool, [TRACKED], "insert function instrument code for mcount-based tracing (default: no)"), keep_hygiene_data: bool = (false, parse_bool, [UNTRACKED], |