Fix failures when mlir is disabled

src/targets/gpu/fuse_mlir.cpp

@@ -95,7 +95,11 @@ struct find_conv_pointwise
 
 void fuse_mlir::apply(module_pass_manager& mpm) const
 {
+#ifdef MIGRAPHX_MLIR
     match::find_matches(mpm, find_conv_pointwise{});
+#else
+    (void)mpm;
+#endif
 }
 
 } // namespace gpu

src/targets/gpu/mlir.cpp

@@ -602,6 +602,16 @@ instruction_ref insert_mlir(module& m,
 
 std::string dump_mlir(const module&) { return {}; }
 
+code_object_op compile_mlir(const context&, const module&) { return {}; }
+
+instruction_ref insert_mlir(module& m,
+                            instruction_ref,
+                            code_object_op,
+                            const std::vector<instruction_ref>&)
+{
+    return m.end();
+}
+
 #endif
 
 } // namespace gpu