1 files changed, 5 insertions, 1 deletions
diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs
index 059eace8691..8c24579fa7c 100644
--- a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs
+++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs
@@ -536,7 +536,11 @@ fn add_unused_function_coverage<'tcx>(
     );
 
     // An unused function's mappings will all be rewritten to map to zero.
-    let function_coverage = FunctionCoverageCollector::unused(instance, function_coverage_info);
+    let function_coverage = FunctionCoverageCollector::unused(
+        instance,
+        function_coverage_info,
+        tcx.coverage_ids_info(instance.def),
+    );
 
     cx.coverage_cx().function_coverage_map.borrow_mut().insert(instance, function_coverage);
 }