coverage. Add unimplemented mcdc functions for gcc codegen

Author: Lambdaris

compiler/rustc_codegen_gcc/src/builder.rs

@@ -25,7 +25,7 @@ use rustc_middle::ty::layout::{
     FnAbiError, FnAbiOfHelpers, FnAbiRequest, HasParamEnv, HasTyCtxt, LayoutError, LayoutOfHelpers,
     TyAndLayout,
 };
-use rustc_middle::ty::{ParamEnv, Ty, TyCtxt, Instance};
+use rustc_middle::ty::{Instance, ParamEnv, Ty, TyCtxt};
 use rustc_span::def_id::DefId;
 use rustc_span::Span;
 use rustc_target::abi::{
@@ -1736,6 +1736,41 @@ impl<'a, 'gcc, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'gcc, 'tcx> {
     ) {
         unimplemented!();
     }
+
+    fn mcdc_parameters(
+        &mut self,
+        _fn_name: Self::Value,
+        _hash: Self::Value,
+        _bitmap_bytes: Self::Value,
+    ) -> Self::Value {
+        unimplemented!();
+    }
+
+    fn mcdc_tvbitmap_update(
+        &mut self,
+        _fn_name: Self::Value,
+        _hash: Self::Value,
+        _bitmap_bytes: Self::Value,
+        _bitmap_index: Self::Value,
+        _mcdc_temp: Self::Value,
+    ) {
+        unimplemented!();
+    }
+
+    fn mcdc_condbitmap_update(
+        &mut self,
+        _fn_name: Self::Value,
+        _hash: Self::Value,
+        _cond_loc: Self::Value,
+        _mcdc_temp: Self::Value,
+        _bool_value: Self::Value,
+    ) {
+        unimplemented!();
+    }
+
+    fn mcdc_condbitmap_reset(&mut self, _mcdc_temp: Self::Value) {
+        unimplemented!();
+    }
 }
 
 impl<'a, 'gcc, 'tcx> Builder<'a, 'gcc, 'tcx> {