add UNREACHABLE_RETURN

Not every compilers understand that rb_raise does not return.  When a
function does not end with a return statement, such compilers can issue
warnings.  We would better tell them about reachabilities.

1 files changed, 1 insertions, 0 deletions

diff --git a/vm_eval.c b/vm_eval.c
index 98352ba545..db63dcda62 100644
--- a/vm_eval.c
+++ b/vm_eval.c
@@ -846,6 +846,7 @@ method_missing(VALUE obj, ID id, int argc, const VALUE *argv, enum method_missin
     return result;
   missing:
     raise_method_missing(ec, argc, argv, obj, call_status | MISSING_MISSING);
+    UNREACHABLE_RETURN(Qundef);
 }
 
 #ifndef MJIT_HEADER