1 files changed, 4 insertions, 0 deletions
diff --git a/tcg/tcg.c b/tcg/tcg.c
index 70f19e4e9e..06ce214881 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -2124,6 +2124,10 @@ static inline int tcg_gen_code_common(TCGContext *s, uint8_t *gen_code_buf,
         case INDEX_op_end:
             goto the_end;
         default:
+            /* Sanity check that we've not introduced any unhandled opcodes. */
+            if (def->flags & TCG_OPF_NOT_PRESENT) {
+                tcg_abort();
+            }
             /* Note: in order to speed up the code, it would be much
                faster to have specialized register allocator functions for
                some common argument patterns */