Add trait methods for experimental retags to cg.

Author: icmccorm

src/intrinsic/mod.rs

@@ -6,7 +6,6 @@ use std::iter;
 
 use gccjit::{ComparisonOp, Function, FunctionType, RValue, ToRValue, Type, UnaryOp};
 use rustc_abi::{BackendRepr, HasDataLayout, WrappingRange};
-use rustc_codegen_ssa::MemFlags;
 use rustc_codegen_ssa::base::wants_msvc_seh;
 use rustc_codegen_ssa::common::IntPredicate;
 use rustc_codegen_ssa::errors::InvalidMonomorphization;
@@ -18,6 +17,7 @@ use rustc_codegen_ssa::traits::{
     ArgAbiBuilderMethods, BaseTypeCodegenMethods, BuilderMethods, ConstCodegenMethods,
     IntrinsicCallBuilderMethods, LayoutTypeCodegenMethods,
 };
+use rustc_codegen_ssa::{MemFlags, RetagInfo};
 use rustc_data_structures::fx::FxHashSet;
 #[cfg(feature = "master")]
 use rustc_middle::ty::layout::FnAbiOf;
@@ -702,6 +702,14 @@ impl<'a, 'gcc, 'tcx> IntrinsicCallBuilderMethods<'tcx> for Builder<'a, 'gcc, 'tc
         // FIXME(antoyo): implement.
         self.context.new_rvalue_from_int(self.int_type, 0)
     }
+
+    fn retag_reg(&mut self, _ptr: Self::Value, _info: &RetagInfo<Self::Value>) -> Self::Value {
+        unimplemented!()
+    }
+
+    fn retag_mem(&mut self, _ptr: Self::Value, _info: &RetagInfo<Self::Value>) {
+        unimplemented!()
+    }
 }
 
 impl<'a, 'gcc, 'tcx> ArgAbiBuilderMethods<'tcx> for Builder<'a, 'gcc, 'tcx> {