3 files changed, 65 insertions, 0 deletions
diff --git a/gcc/rust/Make-lang.in b/gcc/rust/Make-lang.in
index 080b9dd..9de93fe 100644
--- a/gcc/rust/Make-lang.in
+++ b/gcc/rust/Make-lang.in
@@ -75,6 +75,7 @@ GRS_OBJS = \
     rust/rust-compile-resolve-path.o \
     rust/rust-macro-expand.o \
     rust/rust-macro-invoc-lexer.o \
+    rust/rust-macro-builtins.o \
     rust/rust-hir-full-test.o \
     rust/rust-hir-map.o \
     rust/rust-attributes.o \
diff --git a/gcc/rust/expand/rust-macro-builtins.cc b/gcc/rust/expand/rust-macro-builtins.cc
new file mode 100644
index 0000000..b7bbd32
--- /dev/null
+++ b/gcc/rust/expand/rust-macro-builtins.cc
@@ -0,0 +1,30 @@
+// Copyright (C) 2020-2022 Free Software Foundation, Inc.
+
+// This file is part of GCC.
+
+// GCC is free software; you can redistribute it and/or modify it under
+// the terms of the GNU General Public License as published by the Free
+// Software Foundation; either version 3, or (at your option) any later
+// version.
+
+// GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or
+// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+// for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with GCC; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+#include "rust-macro-builtins.h"
+#include "rust-diagnostics.h"
+
+namespace Rust {
+AST::ASTFragment
+MacroBuiltin::assert (Location invoc_locus, AST::MacroInvocData &invoc)
+{
+  rust_debug ("assert!() called");
+
+  return AST::ASTFragment::create_empty ();
+}
+} // namespace Rust
diff --git a/gcc/rust/expand/rust-macro-builtins.h b/gcc/rust/expand/rust-macro-builtins.h
new file mode 100644
index 0000000..f279d39
--- /dev/null
+++ b/gcc/rust/expand/rust-macro-builtins.h
@@ -0,0 +1,34 @@
+// Copyright (C) 2020-2022 Free Software Foundation, Inc.
+
+// This file is part of GCC.
+
+// GCC is free software; you can redistribute it and/or modify it under
+// the terms of the GNU General Public License as published by the Free
+// Software Foundation; either version 3, or (at your option) any later
+// version.
+
+// GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or
+// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+// for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with GCC; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+#ifndef RUST_MACRO_BUILTINS_H
+#define RUST_MACRO_BUILTINS_H
+
+#include "rust-ast.h"
+#include "rust-location.h"
+
+namespace Rust {
+class MacroBuiltin
+{
+public:
+  static AST::ASTFragment assert (Location invoc_locus,
+				  AST::MacroInvocData &invoc);
+};
+} // namespace Rust
+
+#endif // RUST_MACRO_BUILTINS_H