Update coverage docs and command line help

[rust.git] / compiler / rustc_session / src / options.rs

diff --git a/compiler/rustc_session/src/options.rs b/compiler/rustc_session/src/options.rs
index 1c2a7f7716d2176f954653ca4e087fee475afb6b..b8718bb8df16acf78e751b0e9a7fd5a15d8a4280 100644 (file)
--- a/compiler/rustc_session/src/options.rs
+++ b/compiler/rustc_session/src/options.rs
@@ -1056,12 +1056,12 @@ fn parse_split_debuginfo(slot: &mut Option<SplitDebuginfo>, v: Option<&str>) ->
         "gather statistics about the input (default: no)"),
     instrument_coverage: Option<InstrumentCoverage> = (None, parse_instrument_coverage, [TRACKED],
         "instrument the generated code to support LLVM source-based code coverage \
-        reports (note, the compiler build config must include `profiler = true`, \
-        and is mutually exclusive with `-C profile-generate`/`-C profile-use`); \
-        implies `-Z symbol-mangling-version=v0`; disables/overrides some Rust \
-        optimizations. Optional values are: `=all` (default coverage), \
-        `=except-unused-generics`, `=except-unused-functions`, or `=off` \
-        (default: instrument-coverage=off)"),
+        reports (note, the compiler build config must include `profiler = true`); \
+        implies `-Z symbol-mangling-version=v0`. Optional values are:
+        `=all` (implicit value)
+        `=except-unused-generics`
+        `=except-unused-functions`
+        `=off` (default)"),
     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],