Safegaurd InlineAsm's clone_expr_...

Safegaurd InlineAsm's clone_expr_... with unreachable since
we would never use them.

gcc/rust/ChangeLog:

	* ast/rust-expr.h:
	Safegaurd InlineAsm's clone_expr_... with unreachable.

diff --git a/gcc/rust/ast/rust-expr.h b/gcc/rust/ast/rust-expr.h
index bceef827dfb0050b2e24206d20b4c5c57bed53a6..1af72965a93eab351d291225f15a6718fe9b2e79 100644 (file)
--- a/gcc/rust/ast/rust-expr.h
+++ b/gcc/rust/ast/rust-expr.h
@@ -4873,6 +4873,7 @@ public:
 
   ExprWithoutBlock *clone_expr_without_block_impl () const override
   {
+    rust_unreachable ();
     return nullptr;
   }
 };