diff --git a/gnu/dist/gcc/config/sh/sh.c b/gnu/dist/gcc/config/sh/sh.c
index 860abff9127d..27abefea5ccf 100644
--- a/gnu/dist/gcc/config/sh/sh.c
+++ b/gnu/dist/gcc/config/sh/sh.c
@@ -3868,6 +3868,8 @@ sh_valid_machine_decl_attribute (decl, attributes, attr, args)
       trap_exit = TREE_INT_CST_LOW (TREE_VALUE (args));
       return 1;
     }
+
+  return 0;
 }
 
 
diff --git a/gnu/dist/toolchain/gcc/config/sh/sh.c b/gnu/dist/toolchain/gcc/config/sh/sh.c
index 573961fbb448..530e852a02ee 100644
--- a/gnu/dist/toolchain/gcc/config/sh/sh.c
+++ b/gnu/dist/toolchain/gcc/config/sh/sh.c
@@ -4111,6 +4111,8 @@ sh_valid_machine_decl_attribute (decl, attributes, attr, args)
       trap_exit = TREE_INT_CST_LOW (TREE_VALUE (args));
       return 1;
     }
+
+  return 0;
 }