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-rw-r--r--compiler/rustc_session/src/config.rs8
1 files changed, 0 insertions, 8 deletions
diff --git a/compiler/rustc_session/src/config.rs b/compiler/rustc_session/src/config.rs
index 8f624e0fb2f..e82f4527c6c 100644
--- a/compiler/rustc_session/src/config.rs
+++ b/compiler/rustc_session/src/config.rs
@@ -182,14 +182,6 @@ pub enum InstrumentCoverage {
 pub struct CoverageOptions {
     pub level: CoverageLevel,
 
-    /// `-Zcoverage-options=no-mir-spans`: Don't extract block coverage spans
-    /// from MIR statements/terminators, making it easier to inspect/debug
-    /// branch and MC/DC coverage mappings.
-    ///
-    /// For internal debugging only. If other code changes would make it hard
-    /// to keep supporting this flag, remove it.
-    pub no_mir_spans: bool,
-
     /// `-Zcoverage-options=discard-all-spans-in-codegen`: During codegen,
     /// discard all coverage spans as though they were invalid. Needed by
     /// regression tests for #133606, because we don't have an easy way to