diff --git a/tcg/tcg.c b/tcg/tcg.c
index 30f3aefe69..6b27d7bfac 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -89,6 +89,7 @@ TCGOpDef tcg_op_defs[] = {
 #include "tcg-opc.h"
 #undef DEF
 };
+const size_t tcg_op_defs_max = ARRAY_SIZE(tcg_op_defs);
 
 static TCGRegSet tcg_target_available_regs[2];
 static TCGRegSet tcg_target_call_clobber_regs;
diff --git a/tcg/tcg.h b/tcg/tcg.h
index ca48075175..755a8b31cc 100644
--- a/tcg/tcg.h
+++ b/tcg/tcg.h
@@ -525,7 +525,8 @@ typedef struct TCGOpDef {
 } TCGOpDef;
 
 extern TCGOpDef tcg_op_defs[];
-        
+extern const size_t tcg_op_defs_max;
+
 typedef struct TCGTargetOpDef {
     TCGOpcode op;
     const char *args_ct_str[TCG_MAX_OP_ARGS];